Merge branch 'akpm' (Andrew's patch-bomb)

Merge misc patches from Andrew Morton:
 "The MM tree is rather stuck while I wait to find out what the heck is
  happening with sched/numa.  Probably I'll need to route around all the
  code which was added to -next, sigh.

  So this is "everything else", or at least most of it - other small
  bits are still awaiting resolutions of various kinds."

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (180 commits)
  lib/decompress.c add __init to decompress_method and data
  kernel/resource.c: fix stack overflow in __reserve_region_with_split()
  omfs: convert to use beXX_add_cpu()
  taskstats: cgroupstats_user_cmd() may leak on error
  aoe: update aoe-internal version number to 50
  aoe: update documentation to better reflect aoe-plus-udev usage
  aoe: remove unused code
  aoe: make dynamic block minor numbers the default
  aoe: update and specify AoE address guards and error messages
  aoe: retain static block device numbers for backwards compatibility
  aoe: support more AoE addresses with dynamic block device minor numbers
  aoe: update documentation with new URL and VM settings reference
  aoe: update copyright year in touched files
  aoe: update internal version number to 49
  aoe: remove unused code and add cosmetic improvements
  aoe: increase net_device reference count while using it
  aoe: associate frames with the AoE storage target
  aoe: disallow unsupported AoE minor addresses
  aoe: do revalidation steps in order
  aoe: failover remote interface based on aoe_deadsecs parameter
  ...

134 files changed, 4741 insertions, 1342 deletions

diff --git a/drivers/atm/eni.c b/drivers/atm/eni.c
index 2059ee460b0c..81e44f7b0ab6 100644
--- a/drivers/atm/eni.c
+++ b/drivers/atm/eni.c
@@ -1567,7 +1567,7 @@ tx_complete++;
 /*--------------------------------- entries ---------------------------------*/
 
 
-static const char *media_name[] __devinitdata = {
+static char * const media_name[] __devinitconst = {
     "MMF", "SMF", "MMF", "03?", /*  0- 3 */
     "UTP", "05?", "06?", "07?", /*  4- 7 */
     "TAXI","09?", "10?", "11?", /*  8-11 */
diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h
index db195abad698..d2ed7f18d1ac 100644
--- a/drivers/block/aoe/aoe.h
+++ b/drivers/block/aoe/aoe.h
@@ -1,5 +1,5 @@
-/* Copyright (c) 2007 Coraid, Inc.  See COPYING for GPL terms. */
-#define VERSION "47"
+/* Copyright (c) 2012 Coraid, Inc.  See COPYING for GPL terms. */
+#define VERSION "50"
 #define AOE_MAJOR 152
 #define DEVICE_NAME "aoe"
 
@@ -10,9 +10,6 @@
 #define AOE_PARTITIONS (16)
 #endif
 
-#define SYSMINOR(aoemajor, aoeminor) ((aoemajor) * NPERSHELF + (aoeminor))
-#define AOEMAJOR(sysminor) ((sysminor) / NPERSHELF)
-#define AOEMINOR(sysminor) ((sysminor) % NPERSHELF)
 #define WHITESPACE " \t\v\f\n"
 
 enum {
@@ -75,72 +72,67 @@ enum {
 	DEVFL_UP = 1,	/* device is installed in system and ready for AoE->ATA commands */
 	DEVFL_TKILL = (1<<1),	/* flag for timer to know when to kill self */
 	DEVFL_EXT = (1<<2),	/* device accepts lba48 commands */
-	DEVFL_CLOSEWAIT = (1<<3), /* device is waiting for all closes to revalidate */
-	DEVFL_GDALLOC = (1<<4),	/* need to alloc gendisk */
-	DEVFL_KICKME = (1<<5),	/* slow polling network card catch */
-	DEVFL_NEWSIZE = (1<<6),	/* need to update dev size in block layer */
-
-	BUFFL_FAIL = 1,
+	DEVFL_GDALLOC = (1<<3),	/* need to alloc gendisk */
+	DEVFL_KICKME = (1<<4),	/* slow polling network card catch */
+	DEVFL_NEWSIZE = (1<<5),	/* need to update dev size in block layer */
 };
 
 enum {
 	DEFAULTBCNT = 2 * 512,	/* 2 sectors */
-	NPERSHELF = 16,		/* number of slots per shelf address */
-	FREETAG = -1,
 	MIN_BUFS = 16,
 	NTARGETS = 8,
 	NAOEIFS = 8,
-	NSKBPOOLMAX = 128,
+	NSKBPOOLMAX = 256,
+	NFACTIVE = 61,
 
 	TIMERTICK = HZ / 10,
 	MINTIMER = HZ >> 2,
 	MAXTIMER = HZ << 1,
-	HELPWAIT = 20,
 };
 
 struct buf {
-	struct list_head bufs;
-	ulong stime;	/* for disk stats */
-	ulong flags;
 	ulong nframesout;
 	ulong resid;
 	ulong bv_resid;
-	ulong bv_off;
 	sector_t sector;
 	struct bio *bio;
 	struct bio_vec *bv;
+	struct request *rq;
 };
 
 struct frame {
-	int tag;
+	struct list_head head;
+	u32 tag;
 	ulong waited;
+	struct aoetgt *t;		/* parent target I belong to */
+	sector_t lba;
+	struct sk_buff *skb;		/* command skb freed on module exit */
+	struct sk_buff *r_skb;		/* response skb for async processing */
 	struct buf *buf;
-	char *bufaddr;
+	struct bio_vec *bv;
 	ulong bcnt;
-	sector_t lba;
-	struct sk_buff *skb;
+	ulong bv_off;
 };
 
 struct aoeif {
 	struct net_device *nd;
-	unsigned char lost;
-	unsigned char lostjumbo;
-	ushort maxbcnt;
+	ulong lost;
+	int bcnt;
 };
 
 struct aoetgt {
 	unsigned char addr[6];
 	ushort nframes;
-	struct frame *frames;
+	struct aoedev *d;			/* parent device I belong to */
+	struct list_head ffree;			/* list of free frames */
 	struct aoeif ifs[NAOEIFS];
 	struct aoeif *ifp;	/* current aoeif in use */
 	ushort nout;
 	ushort maxout;
-	u16 lasttag;		/* last tag sent */
-	u16 useme;
+	ulong falloc;
 	ulong lastwadj;		/* last window adjustment */
+	int minbcnt;
 	int wpkts, rpkts;
-	int dataref;
 };
 
 struct aoedev {
@@ -153,6 +145,9 @@ struct aoedev {
 	u16 rttavg;		/* round trip average of requests/responses */
 	u16 mintimer;
 	u16 fw_ver;		/* version of blade's firmware */
+	u16 lasttag;		/* last tag sent */
+	u16 useme;
+	ulong ref;
 	struct work_struct work;/* disk create work struct */
 	struct gendisk *gd;
 	struct request_queue *blkq;
@@ -160,16 +155,31 @@ struct aoedev {
 	sector_t ssize;
 	struct timer_list timer;
 	spinlock_t lock;
-	struct sk_buff_head sendq;
 	struct sk_buff_head skbpool;
 	mempool_t *bufpool;	/* for deadlock-free Buf allocation */
-	struct list_head bufq;	/* queue of bios to work on */
-	struct buf *inprocess;	/* the one we're currently working on */
+	struct {		/* pointers to work in progress */
+		struct buf *buf;
+		struct bio *nxbio;
+		struct request *rq;
+	} ip;
+	ulong maxbcnt;
+	struct list_head factive[NFACTIVE];	/* hash of active frames */
 	struct aoetgt *targets[NTARGETS];
 	struct aoetgt **tgt;	/* target in use when working */
-	struct aoetgt **htgt;	/* target needing rexmit assistance */
+	struct aoetgt *htgt;	/* target needing rexmit assistance */
+	ulong ntargets;
+	ulong kicked;
 };
 
+/* kthread tracking */
+struct ktstate {
+	struct completion rendez;
+	struct task_struct *task;
+	wait_queue_head_t *waitq;
+	int (*fn) (void);
+	char *name;
+	spinlock_t *lock;
+};
 
 int aoeblk_init(void);
 void aoeblk_exit(void);
@@ -182,22 +192,29 @@ void aoechr_error(char *);
 
 void aoecmd_work(struct aoedev *d);
 void aoecmd_cfg(ushort aoemajor, unsigned char aoeminor);
-void aoecmd_ata_rsp(struct sk_buff *);
+struct sk_buff *aoecmd_ata_rsp(struct sk_buff *);
 void aoecmd_cfg_rsp(struct sk_buff *);
 void aoecmd_sleepwork(struct work_struct *);
 void aoecmd_cleanslate(struct aoedev *);
+void aoecmd_exit(void);
+int aoecmd_init(void);
 struct sk_buff *aoecmd_ata_id(struct aoedev *);
+void aoe_freetframe(struct frame *);
+void aoe_flush_iocq(void);
+void aoe_end_request(struct aoedev *, struct request *, int);
+int aoe_ktstart(struct ktstate *k);
+void aoe_ktstop(struct ktstate *k);
 
 int aoedev_init(void);
 void aoedev_exit(void);
-struct aoedev *aoedev_by_aoeaddr(int maj, int min);
-struct aoedev *aoedev_by_sysminor_m(ulong sysminor);
+struct aoedev *aoedev_by_aoeaddr(ulong maj, int min, int do_alloc);
 void aoedev_downdev(struct aoedev *d);
 int aoedev_flush(const char __user *str, size_t size);
+void aoe_failbuf(struct aoedev *, struct buf *);
+void aoedev_put(struct aoedev *);
 
 int aoenet_init(void);
 void aoenet_exit(void);
 void aoenet_xmit(struct sk_buff_head *);
 int is_aoe_netif(struct net_device *ifp);
 int set_aoe_iflist(const char __user *str, size_t size);
-
diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c
index 321de7b6c442..00dfc5008ad4 100644
--- a/drivers/block/aoe/aoeblk.c
+++ b/drivers/block/aoe/aoeblk.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007 Coraid, Inc.  See COPYING for GPL terms. */
+/* Copyright (c) 2012 Coraid, Inc.  See COPYING for GPL terms. */
 /*
  * aoeblk.c
  * block device routines
@@ -161,68 +161,22 @@ aoeblk_release(struct gendisk *disk, fmode_t mode)
 }
 
 static void
-aoeblk_make_request(struct request_queue *q, struct bio *bio)
+aoeblk_request(struct request_queue *q)
 {
-	struct sk_buff_head queue;
 	struct aoedev *d;
-	struct buf *buf;
-	ulong flags;
-
-	blk_queue_bounce(q, &bio);
-
-	if (bio == NULL) {
-		printk(KERN_ERR "aoe: bio is NULL\n");
-		BUG();
-		return;
-	}
-	d = bio->bi_bdev->bd_disk->private_data;
-	if (d == NULL) {
-		printk(KERN_ERR "aoe: bd_disk->private_data is NULL\n");
-		BUG();
-		bio_endio(bio, -ENXIO);
-		return;
-	} else if (bio->bi_io_vec == NULL) {
-		printk(KERN_ERR "aoe: bi_io_vec is NULL\n");
-		BUG();
-		bio_endio(bio, -ENXIO);
-		return;
-	}
-	buf = mempool_alloc(d->bufpool, GFP_NOIO);
-	if (buf == NULL) {
-		printk(KERN_INFO "aoe: buf allocation failure\n");
-		bio_endio(bio, -ENOMEM);
-		return;
-	}
-	memset(buf, 0, sizeof(*buf));
-	INIT_LIST_HEAD(&buf->bufs);
-	buf->stime = jiffies;
-	buf->bio = bio;
-	buf->resid = bio->bi_size;
-	buf->sector = bio->bi_sector;
-	buf->bv = &bio->bi_io_vec[bio->bi_idx];
-	buf->bv_resid = buf->bv->bv_len;
-	WARN_ON(buf->bv_resid == 0);
-	buf->bv_off = buf->bv->bv_offset;
-
-	spin_lock_irqsave(&d->lock, flags);
+	struct request *rq;
 
+	d = q->queuedata;
 	if ((d->flags & DEVFL_UP) == 0) {
 		pr_info_ratelimited("aoe: device %ld.%d is not up\n",
 			d->aoemajor, d->aoeminor);
-		spin_unlock_irqrestore(&d->lock, flags);
-		mempool_free(buf, d->bufpool);
-		bio_endio(bio, -ENXIO);
+		while ((rq = blk_peek_request(q))) {
+			blk_start_request(rq);
+			aoe_end_request(d, rq, 1);
+		}
 		return;
 	}
-
-	list_add_tail(&buf->bufs, &d->bufq);
-
 	aoecmd_work(d);
-	__skb_queue_head_init(&queue);
-	skb_queue_splice_init(&d->sendq, &queue);
-
-	spin_unlock_irqrestore(&d->lock, flags);
-	aoenet_xmit(&queue);
 }
 
 static int
@@ -254,41 +208,54 @@ aoeblk_gdalloc(void *vp)
 {
 	struct aoedev *d = vp;
 	struct gendisk *gd;
+	mempool_t *mp;
+	struct request_queue *q;
+	enum { KB = 1024, MB = KB * KB, READ_AHEAD = 2 * MB, };
 	ulong flags;
 
 	gd = alloc_disk(AOE_PARTITIONS);
 	if (gd == NULL) {
-		printk(KERN_ERR
-			"aoe: cannot allocate disk structure for %ld.%d\n",
+		pr_err("aoe: cannot allocate disk structure for %ld.%d\n",
 			d->aoemajor, d->aoeminor);
 		goto err;
 	}
 
-	d->bufpool = mempool_create_slab_pool(MIN_BUFS, buf_pool_cache);
-	if (d->bufpool == NULL) {
+	mp = mempool_create(MIN_BUFS, mempool_alloc_slab, mempool_free_slab,
+		buf_pool_cache);
+	if (mp == NULL) {
 		printk(KERN_ERR "aoe: cannot allocate bufpool for %ld.%d\n",
 			d->aoemajor, d->aoeminor);
 		goto err_disk;
 	}
+	q = blk_init_queue(aoeblk_request, &d->lock);
+	if (q == NULL) {
+		pr_err("aoe: cannot allocate block queue for %ld.%d\n",
+			d->aoemajor, d->aoeminor);
+		mempool_destroy(mp);
+		goto err_disk;
+	}
 
 	d->blkq = blk_alloc_queue(GFP_KERNEL);
 	if (!d->blkq)
 		goto err_mempool;
-	blk_queue_make_request(d->blkq, aoeblk_make_request);
 	d->blkq->backing_dev_info.name = "aoe";
 	if (bdi_init(&d->blkq->backing_dev_info))
 		goto err_blkq;
 	spin_lock_irqsave(&d->lock, flags);
+	blk_queue_max_hw_sectors(d->blkq, BLK_DEF_MAX_SECTORS);
+	q->backing_dev_info.ra_pages = READ_AHEAD / PAGE_CACHE_SIZE;
+	d->bufpool = mp;
+	d->blkq = gd->queue = q;
+	q->queuedata = d;
+	d->gd = gd;
 	gd->major = AOE_MAJOR;
-	gd->first_minor = d->sysminor * AOE_PARTITIONS;
+	gd->first_minor = d->sysminor;
 	gd->fops = &aoe_bdops;
 	gd->private_data = d;
 	set_capacity(gd, d->ssize);
 	snprintf(gd->disk_name, sizeof gd->disk_name, "etherd/e%ld.%d",
 		d->aoemajor, d->aoeminor);
 
-	gd->queue = d->blkq;
-	d->gd = gd;
 	d->flags &= ~DEVFL_GDALLOC;
 	d->flags |= DEVFL_UP;
 
diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c
index e86d2062a164..ed57a890c643 100644
--- a/drivers/block/aoe/aoechr.c
+++ b/drivers/block/aoe/aoechr.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007 Coraid, Inc.  See COPYING for GPL terms. */
+/* Copyright (c) 2012 Coraid, Inc.  See COPYING for GPL terms. */
 /*
  * aoechr.c
  * AoE character device driver
@@ -86,34 +86,34 @@ revalidate(const char __user *str, size_t size)
 	if (copy_from_user(buf, str, size))
 		return -EFAULT;
 
-	/* should be e%d.%d format */
 	n = sscanf(buf, "e%d.%d", &major, &minor);
 	if (n != 2) {
-		printk(KERN_ERR "aoe: invalid device specification\n");
+		pr_err("aoe: invalid device specification %s\n", buf);
 		return -EINVAL;
 	}
-	d = aoedev_by_aoeaddr(major, minor);
+	d = aoedev_by_aoeaddr(major, minor, 0);
 	if (!d)
 		return -EINVAL;
 	spin_lock_irqsave(&d->lock, flags);
 	aoecmd_cleanslate(d);
+	aoecmd_cfg(major, minor);
 loop:
 	skb = aoecmd_ata_id(d);
 	spin_unlock_irqrestore(&d->lock, flags);
 	/* try again if we are able to sleep a bit,
 	 * otherwise give up this revalidation
 	 */
-	if (!skb && !msleep_interruptible(200)) {
+	if (!skb && !msleep_interruptible(250)) {
 		spin_lock_irqsave(&d->lock, flags);
 		goto loop;
 	}
+	aoedev_put(d);
 	if (skb) {
 		struct sk_buff_head queue;
 		__skb_queue_head_init(&queue);
 		__skb_queue_tail(&queue, skb);
 		aoenet_xmit(&queue);
 	}
-	aoecmd_cfg(major, minor);
 	return 0;
 }
 
@@ -174,6 +174,7 @@ aoechr_write(struct file *filp, const char __user *buf, size_t cnt, loff_t *offp
 		break;
 	case MINOR_FLUSH:
 		ret = aoedev_flush(buf, cnt);
+		break;
 	}
 	if (ret == 0)
 		ret = cnt;
diff --git a/drivers/block/aoe/aoecmd.c b/drivers/block/aoe/aoecmd.c
index 887f68f6d79a..3804a0af3ef1 100644
--- a/drivers/block/aoe/aoecmd.c
+++ b/drivers/block/aoe/aoecmd.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007 Coraid, Inc.  See COPYING for GPL terms. */
+/* Copyright (c) 2012 Coraid, Inc.  See COPYING for GPL terms. */
 /*
  * aoecmd.c
  * Filesystem request handling methods
@@ -12,10 +12,19 @@
 #include <linux/netdevice.h>
 #include <linux/genhd.h>
 #include <linux/moduleparam.h>
+#include <linux/workqueue.h>
+#include <linux/kthread.h>
 #include <net/net_namespace.h>
 #include <asm/unaligned.h>
+#include <linux/uio.h>
 #include "aoe.h"
 
+#define MAXIOC (8192)	/* default meant to avoid most soft lockups */
+
+static void ktcomplete(struct frame *, struct sk_buff *);
+
+static struct buf *nextbuf(struct aoedev *);
+
 static int aoe_deadsecs = 60 * 3;
 module_param(aoe_deadsecs, int, 0644);
 MODULE_PARM_DESC(aoe_deadsecs, "After aoe_deadsecs seconds, give up and fail dev.");
@@ -25,6 +34,15 @@ module_param(aoe_maxout, int, 0644);
 MODULE_PARM_DESC(aoe_maxout,
 	"Only aoe_maxout outstanding packets for every MAC on eX.Y.");
 
+static wait_queue_head_t ktiowq;
+static struct ktstate kts;
+
+/* io completion queue */
+static struct {
+	struct list_head head;
+	spinlock_t lock;
+} iocq;
+
 static struct sk_buff *
 new_skb(ulong len)
 {
@@ -41,15 +59,21 @@ new_skb(ulong len)
 }
 
 static struct frame *
-getframe(struct aoetgt *t, int tag)
+getframe(struct aoedev *d, u32 tag)
 {
-	struct frame *f, *e;
+	struct frame *f;
+	struct list_head *head, *pos, *nx;
+	u32 n;
 
-	f = t->frames;
-	e = f + t->nframes;
-	for (; f<e; f++)
-		if (f->tag == tag)
+	n = tag % NFACTIVE;
+	head = &d->factive[n];
+	list_for_each_safe(pos, nx, head) {
+		f = list_entry(pos, struct frame, head);
+		if (f->tag == tag) {
+			list_del(pos);
 			return f;
+		}
+	}
 	return NULL;
 }
 
@@ -59,18 +83,18 @@ getframe(struct aoetgt *t, int tag)
  * This driver reserves tag -1 to mean "unused frame."
  */
 static int
-newtag(struct aoetgt *t)
+newtag(struct aoedev *d)
 {
 	register ulong n;
 
 	n = jiffies & 0xffff;
-	return n |= (++t->lasttag & 0x7fff) << 16;
+	return n |= (++d->lasttag & 0x7fff) << 16;
 }
 
-static int
+static u32
 aoehdr_atainit(struct aoedev *d, struct aoetgt *t, struct aoe_hdr *h)
 {
-	u32 host_tag = newtag(t);
+	u32 host_tag = newtag(d);
 
 	memcpy(h->src, t->ifp->nd->dev_addr, sizeof h->src);
 	memcpy(h->dst, t->addr, sizeof h->dst);
@@ -95,16 +119,18 @@ put_lba(struct aoe_atahdr *ah, sector_t lba)
 	ah->lba5 = lba >>= 8;
 }
 
-static void
+static struct aoeif *
 ifrotate(struct aoetgt *t)
 {
-	t->ifp++;
-	if (t->ifp >= &t->ifs[NAOEIFS] || t->ifp->nd == NULL)
-		t->ifp = t->ifs;
-	if (t->ifp->nd == NULL) {
-		printk(KERN_INFO "aoe: no interface to rotate to\n");
-		BUG();
-	}
+	struct aoeif *ifp;
+
+	ifp = t->ifp;
+	ifp++;
+	if (ifp >= &t->ifs[NAOEIFS] || ifp->nd == NULL)
+		ifp = t->ifs;
+	if (ifp->nd == NULL)
+		return NULL;
+	return t->ifp = ifp;
 }
 
 static void
@@ -129,78 +155,128 @@ skb_pool_get(struct aoedev *d)
 	return NULL;
 }
 
-/* freeframe is where we do our load balancing so it's a little hairy. */
+void
+aoe_freetframe(struct frame *f)
+{
+	struct aoetgt *t;
+
+	t = f->t;
+	f->buf = NULL;
+	f->bv = NULL;
+	f->r_skb = NULL;
+	list_add(&f->head, &t->ffree);
+}
+
 static struct frame *
-freeframe(struct aoedev *d)
+newtframe(struct aoedev *d, struct aoetgt *t)
 {
-	struct frame *f, *e, *rf;
-	struct aoetgt **t;
+	struct frame *f;
 	struct sk_buff *skb;
+	struct list_head *pos;
+
+	if (list_empty(&t->ffree)) {
+		if (t->falloc >= NSKBPOOLMAX*2)
+			return NULL;
+		f = kcalloc(1, sizeof(*f), GFP_ATOMIC);
+		if (f == NULL)
+			return NULL;
+		t->falloc++;
+		f->t = t;
+	} else {
+		pos = t->ffree.next;
+		list_del(pos);
+		f = list_entry(pos, struct frame, head);
+	}
+
+	skb = f->skb;
+	if (skb == NULL) {
+		f->skb = skb = new_skb(ETH_ZLEN);
+		if (!skb) {
+bail:			aoe_freetframe(f);
+			return NULL;
+		}
+	}
+
+	if (atomic_read(&skb_shinfo(skb)->dataref) != 1) {
+		skb = skb_pool_get(d);
+		if (skb == NULL)
+			goto bail;
+		skb_pool_put(d, f->skb);
+		f->skb = skb;
+	}
+
+	skb->truesize -= skb->data_len;
+	skb_shinfo(skb)->nr_frags = skb->data_len = 0;
+	skb_trim(skb, 0);
+	return f;
+}
+
+static struct frame *
+newframe(struct aoedev *d)
+{
+	struct frame *f;
+	struct aoetgt *t, **tt;
+	int totout = 0;
 
 	if (d->targets[0] == NULL) {	/* shouldn't happen, but I'm paranoid */
 		printk(KERN_ERR "aoe: NULL TARGETS!\n");
 		return NULL;
 	}
-	t = d->tgt;
-	t++;
-	if (t >= &d->targets[NTARGETS] || !*t)
-		t = d->targets;
+	tt = d->tgt;	/* last used target */
 	for (;;) {
-		if ((*t)->nout < (*t)->maxout
+		tt++;
+		if (tt >= &d->targets[NTARGETS] || !*tt)
+			tt = d->targets;
+		t = *tt;
+		totout += t->nout;
+		if (t->nout < t->maxout
 		&& t != d->htgt
-		&& (*t)->ifp->nd) {
-			rf = NULL;
-			f = (*t)->frames;
-			e = f + (*t)->nframes;
-			for (; f < e; f++) {
-				if (f->tag != FREETAG)
-					continue;
-				skb = f->skb;
-				if (!skb
-				&& !(f->skb = skb = new_skb(ETH_ZLEN)))
-					continue;
-				if (atomic_read(&skb_shinfo(skb)->dataref)
-					!= 1) {
-					if (!rf)
-						rf = f;
-					continue;
-				}
-gotone:				skb_shinfo(skb)->nr_frags = skb->data_len = 0;
-				skb_trim(skb, 0);
-				d->tgt = t;
-				ifrotate(*t);
+		&& t->ifp->nd) {
+			f = newtframe(d, t);
+			if (f) {
+				ifrotate(t);
+				d->tgt = tt;
 				return f;
 			}
-			/* Work can be done, but the network layer is
-			   holding our precious packets.  Try to grab
-			   one from the pool. */
-			f = rf;
-			if (f == NULL) {	/* more paranoia */
-				printk(KERN_ERR
-					"aoe: freeframe: %s.\n",
-					"unexpected null rf");
-				d->flags |= DEVFL_KICKME;
-				return NULL;
-			}
-			skb = skb_pool_get(d);
-			if (skb) {
-				skb_pool_put(d, f->skb);
-				f->skb = skb;
-				goto gotone;
-			}
-			(*t)->dataref++;
-			if ((*t)->nout == 0)
-				d->flags |= DEVFL_KICKME;
 		}
-		if (t == d->tgt)	/* we've looped and found nada */
+		if (tt == d->tgt)	/* we've looped and found nada */
 			break;
-		t++;
-		if (t >= &d->targets[NTARGETS] || !*t)
-			t = d->targets;
+	}
+	if (totout == 0) {
+		d->kicked++;
+		d->flags |= DEVFL_KICKME;
 	}
 	return NULL;
 }
 
+static void
+skb_fillup(struct sk_buff *skb, struct bio_vec *bv, ulong off, ulong cnt)
+{
+	int frag = 0;
+	ulong fcnt;
+loop:
+	fcnt = bv->bv_len - (off - bv->bv_offset);
+	if (fcnt > cnt)
+		fcnt = cnt;
+	skb_fill_page_desc(skb, frag++, bv->bv_page, off, fcnt);
+	cnt -= fcnt;
+	if (cnt <= 0)
+		return;
+	bv++;
+	off = bv->bv_offset;
+	goto loop;
+}
+
+static void
+fhash(struct frame *f)
+{
+	struct aoedev *d = f->t->d;
+	u32 n;
+
+	n = f->tag % NFACTIVE;
+	list_add_tail(&f->head, &d->factive[n]);
+}
+
 static int
 aoecmd_ata_rw(struct aoedev *d)
 {
@@ -208,26 +284,47 @@ aoecmd_ata_rw(struct aoedev *d)
 	struct aoe_hdr *h;
 	struct aoe_atahdr *ah;
 	struct buf *buf;
-	struct bio_vec *bv;
 	struct aoetgt *t;
 	struct sk_buff *skb;
-	ulong bcnt;
+	struct sk_buff_head queue;
+	ulong bcnt, fbcnt;
 	char writebit, extbit;
 
 	writebit = 0x10;
 	extbit = 0x4;
 
-	f = freeframe(d);
+	buf = nextbuf(d);
+	if (buf == NULL)
+		return 0;
+	f = newframe(d);
 	if (f == NULL)
 		return 0;
 	t = *d->tgt;
-	buf = d->inprocess;
-	bv = buf->bv;
-	bcnt = t->ifp->maxbcnt;
+	bcnt = d->maxbcnt;
 	if (bcnt == 0)
 		bcnt = DEFAULTBCNT;
-	if (bcnt > buf->bv_resid)
-		bcnt = buf->bv_resid;
+	if (bcnt > buf->resid)
+		bcnt = buf->resid;
+	fbcnt = bcnt;
+	f->bv = buf->bv;
+	f->bv_off = f->bv->bv_offset + (f->bv->bv_len - buf->bv_resid);
+	do {
+		if (fbcnt < buf->bv_resid) {
+			buf->bv_resid -= fbcnt;
+			buf->resid -= fbcnt;
+			break;
+		}
+		fbcnt -= buf->bv_resid;
+		buf->resid -= buf->bv_resid;
+		if (buf->resid == 0) {
+			d->ip.buf = NULL;
+			break;
+		}
+		buf->bv++;
+		buf->bv_resid = buf->bv->bv_len;
+		WARN_ON(buf->bv_resid == 0);
+	} while (fbcnt);
+
 	/* initialize the headers & frame */
 	skb = f->skb;
 	h = (struct aoe_hdr *) skb_mac_header(skb);
@@ -235,10 +332,10 @@ aoecmd_ata_rw(struct aoedev *d)
 	skb_put(skb, sizeof *h + sizeof *ah);
 	memset(h, 0, skb->len);
 	f->tag = aoehdr_atainit(d, t, h);
+	fhash(f);
 	t->nout++;
 	f->waited = 0;
 	f->buf = buf;
-	f->bufaddr = page_address(bv->bv_page) + buf->bv_off;
 	f->bcnt = bcnt;
 	f->lba = buf->sector;
 
@@ -253,10 +350,11 @@ aoecmd_ata_rw(struct aoedev *d)
 		ah->lba3 |= 0xe0;	/* LBA bit + obsolete 0xa0 */
 	}
 	if (bio_data_dir(buf->bio) == WRITE) {
-		skb_fill_page_desc(skb, 0, bv->bv_page, buf->bv_off, bcnt);
+		skb_fillup(skb, f->bv, f->bv_off, bcnt);
 		ah->aflags |= AOEAFL_WRITE;
 		skb->len += bcnt;
 		skb->data_len = bcnt;
+		skb->truesize += bcnt;
 		t->wpkts++;
 	} else {
 		t->rpkts++;
@@ -267,23 +365,15 @@ aoecmd_ata_rw(struct aoedev *d)
 
 	/* mark all tracking fields and load out */
 	buf->nframesout += 1;
-	buf->bv_off += bcnt;
-	buf->bv_resid -= bcnt;
-	buf->resid -= bcnt;
 	buf->sector += bcnt >> 9;
-	if (buf->resid == 0) {
-		d->inprocess = NULL;
-	} else if (buf->bv_resid == 0) {
-		buf->bv = ++bv;
-		buf->bv_resid = bv->bv_len;
-		WARN_ON(buf->bv_resid == 0);
-		buf->bv_off = bv->bv_offset;
-	}
 
 	skb->dev = t->ifp->nd;
 	skb = skb_clone(skb, GFP_ATOMIC);
-	if (skb)
-		__skb_queue_tail(&d->sendq, skb);
+	if (skb) {
+		__skb_queue_head_init(&queue);
+		__skb_queue_tail(&queue, skb);
+		aoenet_xmit(&queue);
+	}
 	return 1;
 }
 
@@ -330,17 +420,25 @@ cont:
 }
 
 static void
-resend(struct aoedev *d, struct aoetgt *t, struct frame *f)
+resend(struct aoedev *d, struct frame *f)
 {
 	struct sk_buff *skb;
+	struct sk_buff_head queue;
 	struct aoe_hdr *h;
 	struct aoe_atahdr *ah;
+	struct aoetgt *t;
 	char buf[128];
 	u32 n;
 
-	ifrotate(t);
-	n = newtag(t);
+	t = f->t;
+	n = newtag(d);
 	skb = f->skb;
+	if (ifrotate(t) == NULL) {
+		/* probably can't happen, but set it up to fail anyway */
+		pr_info("aoe: resend: no interfaces to rotate to.\n");
+		ktcomplete(f, NULL);
+		return;
+	}
 	h = (struct aoe_hdr *) skb_mac_header(skb);
 	ah = (struct aoe_atahdr *) (h+1);
 
@@ -351,39 +449,22 @@ resend(struct aoedev *d, struct aoetgt *t, struct frame *f)
 	aoechr_error(buf);
 
 	f->tag = n;
+	fhash(f);
 	h->tag = cpu_to_be32(n);
 	memcpy(h->dst, t->addr, sizeof h->dst);
 	memcpy(h->src, t->ifp->nd->dev_addr, sizeof h->src);
 
-	switch (ah->cmdstat) {
-	default:
-		break;
-	case ATA_CMD_PIO_READ:
-	case ATA_CMD_PIO_READ_EXT:
-	case ATA_CMD_PIO_WRITE:
-	case ATA_CMD_PIO_WRITE_EXT:
-		put_lba(ah, f->lba);
-
-		n = f->bcnt;
-		if (n > DEFAULTBCNT)
-			n = DEFAULTBCNT;
-		ah->scnt = n >> 9;
-		if (ah->aflags & AOEAFL_WRITE) {
-			skb_fill_page_desc(skb, 0, virt_to_page(f->bufaddr),
-				offset_in_page(f->bufaddr), n);
-			skb->len = sizeof *h + sizeof *ah + n;
-			skb->data_len = n;
-		}
-	}
 	skb->dev = t->ifp->nd;
 	skb = skb_clone(skb, GFP_ATOMIC);
 	if (skb == NULL)
 		return;
-	__skb_queue_tail(&d->sendq, skb);
+	__skb_queue_head_init(&queue);
+	__skb_queue_tail(&queue, skb);
+	aoenet_xmit(&queue);
 }
 
 static int
-tsince(int tag)
+tsince(u32 tag)
 {
 	int n;
 
@@ -407,58 +488,65 @@ getif(struct aoetgt *t, struct net_device *nd)
 	return NULL;
 }
 
-static struct aoeif *
-addif(struct aoetgt *t, struct net_device *nd)
-{
-	struct aoeif *p;
-
-	p = getif(t, NULL);
-	if (!p)
-		return NULL;
-	p->nd = nd;
-	p->maxbcnt = DEFAULTBCNT;
-	p->lost = 0;
-	p->lostjumbo = 0;
-	return p;
-}
-
 static void
 ejectif(struct aoetgt *t, struct aoeif *ifp)
 {
 	struct aoeif *e;
+	struct net_device *nd;
 	ulong n;
 
+	nd = ifp->nd;
 	e = t->ifs + NAOEIFS - 1;
 	n = (e - ifp) * sizeof *ifp;
 	memmove(ifp, ifp+1, n);
 	e->nd = NULL;
+	dev_put(nd);
 }
 
 static int
 sthtith(struct aoedev *d)
 {
-	struct frame *f, *e, *nf;
+	struct frame *f, *nf;
+	struct list_head *nx, *pos, *head;
 	struct sk_buff *skb;
-	struct aoetgt *ht = *d->htgt;
-
-	f = ht->frames;
-	e = f + ht->nframes;
-	for (; f < e; f++) {
-		if (f->tag == FREETAG)
-			continue;
-		nf = freeframe(d);
-		if (!nf)
-			return 0;
-		skb = nf->skb;
-		*nf = *f;
-		f->skb = skb;
-		f->tag = FREETAG;
-		nf->waited = 0;
-		ht->nout--;
-		(*d->tgt)->nout++;
-		resend(d, *d->tgt, nf);
+	struct aoetgt *ht = d->htgt;
+	int i;
+
+	for (i = 0; i < NFACTIVE; i++) {
+		head = &d->factive[i];
+		list_for_each_safe(pos, nx, head) {
+			f = list_entry(pos, struct frame, head);
+			if (f->t != ht)
+				continue;
+
+			nf = newframe(d);
+			if (!nf)
+				return 0;
+
+			/* remove frame from active list */
+			list_del(pos);
+
+			/* reassign all pertinent bits to new outbound frame */
+			skb = nf->skb;
+			nf->skb = f->skb;
+			nf->buf = f->buf;
+			nf->bcnt = f->bcnt;
+			nf->lba = f->lba;
+			nf->bv = f->bv;
+			nf->bv_off = f->bv_off;
+			nf->waited = 0;
+			f->skb = skb;
+			aoe_freetframe(f);
+			ht->nout--;
+			nf->t->nout++;
+			resend(d, nf);
+		}
 	}
-	/* he's clean, he's useless.  take away his interfaces */
+	/* We've cleaned up the outstanding so take away his
+	 * interfaces so he won't be used.  We should remove him from
+	 * the target array here, but cleaning up a target is
+	 * involved.  PUNT!
+	 */
 	memset(ht->ifs, 0, sizeof ht->ifs);
 	d->htgt = NULL;
 	return 1;
@@ -477,13 +565,15 @@ ata_scnt(unsigned char *packet) {
 static void
 rexmit_timer(ulong vp)
 {
-	struct sk_buff_head queue;
 	struct aoedev *d;
 	struct aoetgt *t, **tt, **te;
 	struct aoeif *ifp;
-	struct frame *f, *e;
+	struct frame *f;
+	struct list_head *head, *pos, *nx;
+	LIST_HEAD(flist);
 	register long timeout;
 	ulong flags, n;
+	int i;
 
 	d = (struct aoedev *) vp;
 
@@ -497,58 +587,22 @@ rexmit_timer(ulong vp)
 		spin_unlock_irqrestore(&d->lock, flags);
 		return;
 	}
-	tt = d->targets;
-	te = tt + NTARGETS;
-	for (; tt < te && *tt; tt++) {
-		t = *tt;
-		f = t->frames;
-		e = f + t->nframes;
-		for (; f < e; f++) {
-			if (f->tag == FREETAG
-			|| tsince(f->tag) < timeout)
-				continue;
-			n = f->waited += timeout;
-			n /= HZ;
-			if (n > aoe_deadsecs) {
-				/* waited too long.  device failure. */
-				aoedev_downdev(d);
-				break;
-			}
-
-			if (n > HELPWAIT /* see if another target can help */
-			&& (tt != d->targets || d->targets[1]))
-				d->htgt = tt;
-
-			if (t->nout == t->maxout) {
-				if (t->maxout > 1)
-					t->maxout--;
-				t->lastwadj = jiffies;
-			}
-
-			ifp = getif(t, f->skb->dev);
-			if (ifp && ++ifp->lost > (t->nframes << 1)
-			&& (ifp != t->ifs || t->ifs[1].nd)) {
-				ejectif(t, ifp);
-				ifp = NULL;
-			}
 
-			if (ata_scnt(skb_mac_header(f->skb)) > DEFAULTBCNT / 512
-			&& ifp && ++ifp->lostjumbo > (t->nframes << 1)
-			&& ifp->maxbcnt != DEFAULTBCNT) {
-				printk(KERN_INFO
-					"aoe: e%ld.%d: "
-					"too many lost jumbo on "
-					"%s:%pm - "
-					"falling back to %d frames.\n",
-					d->aoemajor, d->aoeminor,
-					ifp->nd->name, t->addr,
-					DEFAULTBCNT);
-				ifp->maxbcnt = 0;
-			}
-			resend(d, t, f);
+	/* collect all frames to rexmit into flist */
+	for (i = 0; i < NFACTIVE; i++) {
+		head = &d->factive[i];
+		list_for_each_safe(pos, nx, head) {
+			f = list_entry(pos, struct frame, head);
+			if (tsince(f->tag) < timeout)
+				break;	/* end of expired frames */
+			/* move to flist for later processing */
+			list_move_tail(pos, &flist);
 		}
-
-		/* window check */
+	}
+	/* window check */
+	tt = d->targets;
+	te = tt + d->ntargets;
+	for (; tt < te && (t = *tt); tt++) {
 		if (t->nout == t->maxout
 		&& t->maxout < t->nframes
 		&& (jiffies - t->lastwadj)/HZ > 10) {
@@ -557,45 +611,173 @@ rexmit_timer(ulong vp)
 		}
 	}
 
-	if (!skb_queue_empty(&d->sendq)) {
+	if (!list_empty(&flist)) {	/* retransmissions necessary */
 		n = d->rttavg <<= 1;
 		if (n > MAXTIMER)
 			d->rttavg = MAXTIMER;
 	}
 
-	if (d->flags & DEVFL_KICKME || d->htgt) {
-		d->flags &= ~DEVFL_KICKME;
-		aoecmd_work(d);
+	/* process expired frames */
+	while (!list_empty(&flist)) {
+		pos = flist.next;
+		f = list_entry(pos, struct frame, head);
+		n = f->waited += timeout;
+		n /= HZ;
+		if (n > aoe_deadsecs) {
+			/* Waited too long.  Device failure.
+			 * Hang all frames on first hash bucket for downdev
+			 * to clean up.
+			 */
+			list_splice(&flist, &d->factive[0]);
+			aoedev_downdev(d);
+			break;
+		}
+		list_del(pos);
+
+		t = f->t;
+		if (n > aoe_deadsecs/2)
+			d->htgt = t; /* see if another target can help */
+
+		if (t->nout == t->maxout) {
+			if (t->maxout > 1)
+				t->maxout--;
+			t->lastwadj = jiffies;
+		}
+
+		ifp = getif(t, f->skb->dev);
+		if (ifp && ++ifp->lost > (t->nframes << 1)
+		&& (ifp != t->ifs || t->ifs[1].nd)) {
+			ejectif(t, ifp);
+			ifp = NULL;
+		}
+		resend(d, f);
 	}
 
-	__skb_queue_head_init(&queue);
-	skb_queue_splice_init(&d->sendq, &queue);
+	if ((d->flags & DEVFL_KICKME || d->htgt) && d->blkq) {
+		d->flags &= ~DEVFL_KICKME;
+		d->blkq->request_fn(d->blkq);
+	}
 
 	d->timer.expires = jiffies + TIMERTICK;
 	add_timer(&d->timer);
 
 	spin_unlock_irqrestore(&d->lock, flags);
+}
 
-	aoenet_xmit(&queue);
+static unsigned long
+rqbiocnt(struct request *r)
+{
+	struct bio *bio;
+	unsigned long n = 0;
+
+	__rq_for_each_bio(bio, r)
+		n++;
+	return n;
+}
+
+/* This can be removed if we are certain that no users of the block
+ * layer will ever use zero-count pages in bios.  Otherwise we have to
+ * protect against the put_page sometimes done by the network layer.
+ *
+ * See http://oss.sgi.com/archives/xfs/2007-01/msg00594.html for
+ * discussion.
+ *
+ * We cannot use get_page in the workaround, because it insists on a
+ * positive page count as a precondition.  So we use _count directly.
+ */
+static void
+bio_pageinc(struct bio *bio)
+{
+	struct bio_vec *bv;
+	struct page *page;
+	int i;
+
+	bio_for_each_segment(bv, bio, i) {
+		page = bv->bv_page;
+		/* Non-zero page count for non-head members of
+		 * compound pages is no longer allowed by the kernel,
+		 * but this has never been seen here.
+		 */
+		if (unlikely(PageCompound(page)))
+			if (compound_trans_head(page) != page) {
+				pr_crit("page tail used for block I/O\n");
+				BUG();
+			}
+		atomic_inc(&page->_count);
+	}
+}
+
+static void
+bio_pagedec(struct bio *bio)
+{
+	struct bio_vec *bv;
+	int i;
+
+	bio_for_each_segment(bv, bio, i)
+		atomic_dec(&bv->bv_page->_count);
+}
+
+static void
+bufinit(struct buf *buf, struct request *rq, struct bio *bio)
+{
+	struct bio_vec *bv;
+
+	memset(buf, 0, sizeof(*buf));
+	buf->rq = rq;
+	buf->bio = bio;
+	buf->resid = bio->bi_size;
+	buf->sector = bio->bi_sector;
+	bio_pageinc(bio);
+	buf->bv = bv = &bio->bi_io_vec[bio->bi_idx];
+	buf->bv_resid = bv->bv_len;
+	WARN_ON(buf->bv_resid == 0);
+}
+
+static struct buf *
+nextbuf(struct aoedev *d)
+{
+	struct request *rq;
+	struct request_queue *q;
+	struct buf *buf;
+	struct bio *bio;
+
+	q = d->blkq;
+	if (q == NULL)
+		return NULL;	/* initializing */
+	if (d->ip.buf)
+		return d->ip.buf;
+	rq = d->ip.rq;
+	if (rq == NULL) {
+		rq = blk_peek_request(q);
+		if (rq == NULL)
+			return NULL;
+		blk_start_request(rq);
+		d->ip.rq = rq;
+		d->ip.nxbio = rq->bio;
+		rq->special = (void *) rqbiocnt(rq);
+	}
+	buf = mempool_alloc(d->bufpool, GFP_ATOMIC);
+	if (buf == NULL) {
+		pr_err("aoe: nextbuf: unable to mempool_alloc!\n");
+		return NULL;
+	}
+	bio = d->ip.nxbio;
+	bufinit(buf, rq, bio);
+	bio = bio->bi_next;
+	d->ip.nxbio = bio;
+	if (bio == NULL)
+		d->ip.rq = NULL;
+	return d->ip.buf = buf;
 }
 
 /* enters with d->lock held */
 void
 aoecmd_work(struct aoedev *d)
 {
-	struct buf *buf;
-loop:
 	if (d->htgt && !sthtith(d))
 		return;
-	if (d->inprocess == NULL) {
-		if (list_empty(&d->bufq))
-			return;
-		buf = container_of(d->bufq.next, struct buf, bufs);
-		list_del(d->bufq.next);
-		d->inprocess = buf;
-	}
-	if (aoecmd_ata_rw(d))
-		goto loop;
+	while (aoecmd_ata_rw(d))
+		;
 }
 
 /* this function performs work that has been deferred until sleeping is OK
@@ -604,28 +786,25 @@ void
 aoecmd_sleepwork(struct work_struct *work)
 {
 	struct aoedev *d = container_of(work, struct aoedev, work);
+	struct block_device *bd;
+	u64 ssize;
 
 	if (d->flags & DEVFL_GDALLOC)
 		aoeblk_gdalloc(d);
 
 	if (d->flags & DEVFL_NEWSIZE) {
-		struct block_device *bd;
-		unsigned long flags;
-		u64 ssize;
-
 		ssize = get_capacity(d->gd);
 		bd = bdget_disk(d->gd, 0);
-
 		if (bd) {
 			mutex_lock(&bd->bd_inode->i_mutex);
 			i_size_write(bd->bd_inode, (loff_t)ssize<<9);
 			mutex_unlock(&bd->bd_inode->i_mutex);
 			bdput(bd);
 		}
-		spin_lock_irqsave(&d->lock, flags);
+		spin_lock_irq(&d->lock);
 		d->flags |= DEVFL_UP;
 		d->flags &= ~DEVFL_NEWSIZE;
-		spin_unlock_irqrestore(&d->lock, flags);
+		spin_unlock_irq(&d->lock);
 	}
 }
 
@@ -718,163 +897,299 @@ gettgt(struct aoedev *d, char *addr)
 	return NULL;
 }
 
-static inline void
-diskstats(struct gendisk *disk, struct bio *bio, ulong duration, sector_t sector)
+static void
+bvcpy(struct bio_vec *bv, ulong off, struct sk_buff *skb, long cnt)
+{
+	ulong fcnt;
+	char *p;
+	int soff = 0;
+loop:
+	fcnt = bv->bv_len - (off - bv->bv_offset);
+	if (fcnt > cnt)
+		fcnt = cnt;
+	p = page_address(bv->bv_page) + off;
+	skb_copy_bits(skb, soff, p, fcnt);
+	soff += fcnt;
+	cnt -= fcnt;
+	if (cnt <= 0)
+		return;
+	bv++;
+	off = bv->bv_offset;
+	goto loop;
+}
+
+void
+aoe_end_request(struct aoedev *d, struct request *rq, int fastfail)
+{
+	struct bio *bio;
+	int bok;
+	struct request_queue *q;
+
+	q = d->blkq;
+	if (rq == d->ip.rq)
+		d->ip.rq = NULL;
+	do {
+		bio = rq->bio;
+		bok = !fastfail && test_bit(BIO_UPTODATE, &bio->bi_flags);
+	} while (__blk_end_request(rq, bok ? 0 : -EIO, bio->bi_size));
+
+	/* cf. http://lkml.org/lkml/2006/10/31/28 */
+	if (!fastfail)
+		q->request_fn(q);
+}
+
+static void
+aoe_end_buf(struct aoedev *d, struct buf *buf)
+{
+	struct request *rq;
+	unsigned long n;
+
+	if (buf == d->ip.buf)
+		d->ip.buf = NULL;
+	rq = buf->rq;
+	bio_pagedec(buf->bio);
+	mempool_free(buf, d->bufpool);
+	n = (unsigned long) rq->special;
+	rq->special = (void *) --n;
+	if (n == 0)
+		aoe_end_request(d, rq, 0);
+}
+
+static void
+ktiocomplete(struct frame *f)
 {
-	unsigned long n_sect = bio->bi_size >> 9;
-	const int rw = bio_data_dir(bio);
-	struct hd_struct *part;
-	int cpu;
+	struct aoe_hdr *hin, *hout;
+	struct aoe_atahdr *ahin, *ahout;
+	struct buf *buf;
+	struct sk_buff *skb;
+	struct aoetgt *t;
+	struct aoeif *ifp;
+	struct aoedev *d;
+	long n;
+
+	if (f == NULL)
+		return;
+
+	t = f->t;
+	d = t->d;
+
+	hout = (struct aoe_hdr *) skb_mac_header(f->skb);
+	ahout = (struct aoe_atahdr *) (hout+1);
+	buf = f->buf;
+	skb = f->r_skb;
+	if (skb == NULL)
+		goto noskb;	/* just fail the buf. */
+
+	hin = (struct aoe_hdr *) skb->data;
+	skb_pull(skb, sizeof(*hin));
+	ahin = (struct aoe_atahdr *) skb->data;
+	skb_pull(skb, sizeof(*ahin));
+	if (ahin->cmdstat & 0xa9) {	/* these bits cleared on success */
+		pr_err("aoe: ata error cmd=%2.2Xh stat=%2.2Xh from e%ld.%d\n",
+			ahout->cmdstat, ahin->cmdstat,
+			d->aoemajor, d->aoeminor);
+noskb:	if (buf)
+			clear_bit(BIO_UPTODATE, &buf->bio->bi_flags);
+		goto badrsp;
+	}
 
-	cpu = part_stat_lock();
-	part = disk_map_sector_rcu(disk, sector);
+	n = ahout->scnt << 9;
+	switch (ahout->cmdstat) {
+	case ATA_CMD_PIO_READ:
+	case ATA_CMD_PIO_READ_EXT:
+		if (skb->len < n) {
+			pr_err("aoe: runt data size in read.  skb->len=%d need=%ld\n",
+				skb->len, n);
+			clear_bit(BIO_UPTODATE, &buf->bio->bi_flags);
+			break;
+		}
+		bvcpy(f->bv, f->bv_off, skb, n);
+	case ATA_CMD_PIO_WRITE:
+	case ATA_CMD_PIO_WRITE_EXT:
+		spin_lock_irq(&d->lock);
+		ifp = getif(t, skb->dev);
+		if (ifp)
+			ifp->lost = 0;
+		if (d->htgt == t) /* I'll help myself, thank you. */
+			d->htgt = NULL;
+		spin_unlock_irq(&d->lock);
+		break;
+	case ATA_CMD_ID_ATA:
+		if (skb->len < 512) {
+			pr_info("aoe: runt data size in ataid.  skb->len=%d\n",
+				skb->len);
+			break;
+		}
+		if (skb_linearize(skb))
+			break;
+		spin_lock_irq(&d->lock);
+		ataid_complete(d, t, skb->data);
+		spin_unlock_irq(&d->lock);
+		break;
+	default:
+		pr_info("aoe: unrecognized ata command %2.2Xh for %d.%d\n",
+			ahout->cmdstat,
+			be16_to_cpu(get_unaligned(&hin->major)),
+			hin->minor);
+	}
+badrsp:
+	spin_lock_irq(&d->lock);
+
+	aoe_freetframe(f);
+
+	if (buf && --buf->nframesout == 0 && buf->resid == 0)
+		aoe_end_buf(d, buf);
+
+	aoecmd_work(d);
+
+	spin_unlock_irq(&d->lock);
+	aoedev_put(d);
+	dev_kfree_skb(skb);
+}
+
+/* Enters with iocq.lock held.
+ * Returns true iff responses needing processing remain.
+ */
+static int
+ktio(void)
+{
+	struct frame *f;
+	struct list_head *pos;
+	int i;
 
-	part_stat_inc(cpu, part, ios[rw]);
-	part_stat_add(cpu, part, ticks[rw], duration);
-	part_stat_add(cpu, part, sectors[rw], n_sect);
-	part_stat_add(cpu, part, io_ticks, duration);
+	for (i = 0; ; ++i) {
+		if (i == MAXIOC)
+			return 1;
+		if (list_empty(&iocq.head))
+			return 0;
+		pos = iocq.head.next;
+		list_del(pos);
+		spin_unlock_irq(&iocq.lock);
+		f = list_entry(pos, struct frame, head);
+		ktiocomplete(f);
+		spin_lock_irq(&iocq.lock);
+	}
+}
 
-	part_stat_unlock();
+static int
+kthread(void *vp)
+{
+	struct ktstate *k;
+	DECLARE_WAITQUEUE(wait, current);
+	int more;
+
+	k = vp;
+	current->flags |= PF_NOFREEZE;
+	set_user_nice(current, -10);
+	complete(&k->rendez);	/* tell spawner we're running */
+	do {
+		spin_lock_irq(k->lock);
+		more = k->fn();
+		if (!more) {
+			add_wait_queue(k->waitq, &wait);
+			__set_current_state(TASK_INTERRUPTIBLE);
+		}
+		spin_unlock_irq(k->lock);
+		if (!more) {
+			schedule();
+			remove_wait_queue(k->waitq, &wait);
+		} else
+			cond_resched();
+	} while (!kthread_should_stop());
+	complete(&k->rendez);	/* tell spawner we're stopping */
+	return 0;
 }
 
 void
+aoe_ktstop(struct ktstate *k)
+{
+	kthread_stop(k->task);
+	wait_for_completion(&k->rendez);
+}
+
+int
+aoe_ktstart(struct ktstate *k)
+{
+	struct task_struct *task;
+
+	init_completion(&k->rendez);
+	task = kthread_run(kthread, k, k->name);
+	if (task == NULL || IS_ERR(task))
+		return -ENOMEM;
+	k->task = task;
+	wait_for_completion(&k->rendez); /* allow kthread to start */
+	init_completion(&k->rendez);	/* for waiting for exit later */
+	return 0;
+}
+
+/* pass it off to kthreads for processing */
+static void
+ktcomplete(struct frame *f, struct sk_buff *skb)
+{
+	ulong flags;
+
+	f->r_skb = skb;
+	spin_lock_irqsave(&iocq.lock, flags);
+	list_add_tail(&f->head, &iocq.head);
+	spin_unlock_irqrestore(&iocq.lock, flags);
+	wake_up(&ktiowq);
+}
+
+struct sk_buff *
 aoecmd_ata_rsp(struct sk_buff *skb)
 {
-	struct sk_buff_head queue;
 	struct aoedev *d;
-	struct aoe_hdr *hin, *hout;
-	struct aoe_atahdr *ahin, *ahout;
+	struct aoe_hdr *h;
 	struct frame *f;
-	struct buf *buf;
 	struct aoetgt *t;
-	struct aoeif *ifp;
-	register long n;
+	u32 n;
 	ulong flags;
 	char ebuf[128];
 	u16 aoemajor;
 
-	hin = (struct aoe_hdr *) skb_mac_header(skb);
-	aoemajor = get_unaligned_be16(&hin->major);
-	d = aoedev_by_aoeaddr(aoemajor, hin->minor);
+	h = (struct aoe_hdr *) skb->data;
+	aoemajor = be16_to_cpu(get_unaligned(&h->major));
+	d = aoedev_by_aoeaddr(aoemajor, h->minor, 0);
 	if (d == NULL) {
 		snprintf(ebuf, sizeof ebuf, "aoecmd_ata_rsp: ata response "
 			"for unknown device %d.%d\n",
-			 aoemajor, hin->minor);
+			aoemajor, h->minor);
 		aoechr_error(ebuf);
-		return;
+		return skb;
 	}
 
 	spin_lock_irqsave(&d->lock, flags);
 
-	n = get_unaligned_be32(&hin->tag);
-	t = gettgt(d, hin->src);
-	if (t == NULL) {
-		printk(KERN_INFO "aoe: can't find target e%ld.%d:%pm\n",
-			d->aoemajor, d->aoeminor, hin->src);
-		spin_unlock_irqrestore(&d->lock, flags);
-		return;
-	}
-	f = getframe(t, n);
+	n = be32_to_cpu(get_unaligned(&h->tag));
+	f = getframe(d, n);
 	if (f == NULL) {
 		calc_rttavg(d, -tsince(n));
 		spin_unlock_irqrestore(&d->lock, flags);
+		aoedev_put(d);
 		snprintf(ebuf, sizeof ebuf,
 			"%15s e%d.%d    tag=%08x@%08lx\n",
 			"unexpected rsp",
-			get_unaligned_be16(&hin->major),
-			hin->minor,
-			get_unaligned_be32(&hin->tag),
+			get_unaligned_be16(&h->major),
+			h->minor,
+			get_unaligned_be32(&h->tag),
 			jiffies);
 		aoechr_error(ebuf);
-		return;
+		return skb;
 	}
-
+	t = f->t;
 	calc_rttavg(d, tsince(f->tag));
-
-	ahin = (struct aoe_atahdr *) (hin+1);
-	hout = (struct aoe_hdr *) skb_mac_header(f->skb);
-	ahout = (struct aoe_atahdr *) (hout+1);
-	buf = f->buf;
-
-	if (ahin->cmdstat & 0xa9) {	/* these bits cleared on success */
-		printk(KERN_ERR
-			"aoe: ata error cmd=%2.2Xh stat=%2.2Xh from e%ld.%d\n",
-			ahout->cmdstat, ahin->cmdstat,
-			d->aoemajor, d->aoeminor);
-		if (buf)
-			buf->flags |= BUFFL_FAIL;
-	} else {
-		if (d->htgt && t == *d->htgt) /* I'll help myself, thank you. */
-			d->htgt = NULL;
-		n = ahout->scnt << 9;
-		switch (ahout->cmdstat) {
-		case ATA_CMD_PIO_READ:
-		case ATA_CMD_PIO_READ_EXT:
-			if (skb->len - sizeof *hin - sizeof *ahin < n) {
-				printk(KERN_ERR
-					"aoe: %s.  skb->len=%d need=%ld\n",
-					"runt data size in read", skb->len, n);
-				/* fail frame f?  just returning will rexmit. */
-				spin_unlock_irqrestore(&d->lock, flags);
-				return;
-			}
-			memcpy(f->bufaddr, ahin+1, n);
-		case ATA_CMD_PIO_WRITE:
-		case ATA_CMD_PIO_WRITE_EXT:
-			ifp = getif(t, skb->dev);
-			if (ifp) {
-				ifp->lost = 0;
-				if (n > DEFAULTBCNT)
-					ifp->lostjumbo = 0;
-			}
-			if (f->bcnt -= n) {
-				f->lba += n >> 9;
-				f->bufaddr += n;
-				resend(d, t, f);
-				goto xmit;
-			}
-			break;
-		case ATA_CMD_ID_ATA:
-			if (skb->len - sizeof *hin - sizeof *ahin < 512) {
-				printk(KERN_INFO
-					"aoe: runt data size in ataid.  skb->len=%d\n",
-					skb->len);
-				spin_unlock_irqrestore(&d->lock, flags);
-				return;
-			}
-			ataid_complete(d, t, (char *) (ahin+1));
-			break;
-		default:
-			printk(KERN_INFO
-				"aoe: unrecognized ata command %2.2Xh for %d.%d\n",
-				ahout->cmdstat,
-				get_unaligned_be16(&hin->major),
-				hin->minor);
-		}
-	}
-
-	if (buf && --buf->nframesout == 0 && buf->resid == 0) {
-		diskstats(d->gd, buf->bio, jiffies - buf->stime, buf->sector);
-		if (buf->flags & BUFFL_FAIL)
-			bio_endio(buf->bio, -EIO);
-		else {
-			bio_flush_dcache_pages(buf->bio);
-			bio_endio(buf->bio, 0);
-		}
-		mempool_free(buf, d->bufpool);
-	}
-
-	f->buf = NULL;
-	f->tag = FREETAG;
 	t->nout--;
-
 	aoecmd_work(d);
-xmit:
-	__skb_queue_head_init(&queue);
-	skb_queue_splice_init(&d->sendq, &queue);
 
 	spin_unlock_irqrestore(&d->lock, flags);
-	aoenet_xmit(&queue);
+
+	ktcomplete(f, skb);
+
+	/*
+	 * Note here that we do not perform an aoedev_put, as we are
+	 * leaving this reference for the ktio to release.
+	 */
+	return NULL;
 }
 
 void
@@ -896,7 +1211,7 @@ aoecmd_ata_id(struct aoedev *d)
 	struct sk_buff *skb;
 	struct aoetgt *t;
 
-	f = freeframe(d);
+	f = newframe(d);
 	if (f == NULL)
 		return NULL;
 
@@ -909,6 +1224,7 @@ aoecmd_ata_id(struct aoedev *d)
 	skb_put(skb, sizeof *h + sizeof *ah);
 	memset(h, 0, skb->len);
 	f->tag = aoehdr_atainit(d, t, h);
+	fhash(f);
 	t->nout++;
 	f->waited = 0;
 
@@ -929,7 +1245,6 @@ static struct aoetgt *
 addtgt(struct aoedev *d, char *addr, ulong nframes)
 {
 	struct aoetgt *t, **tt, **te;
-	struct frame *f, *e;
 
 	tt = d->targets;
 	te = tt + NTARGETS;
@@ -941,26 +1256,73 @@ addtgt(struct aoedev *d, char *addr, ulong nframes)
 			"aoe: device addtgt failure; too many targets\n");
 		return NULL;
 	}
-	t = kcalloc(1, sizeof *t, GFP_ATOMIC);
-	f = kcalloc(nframes, sizeof *f, GFP_ATOMIC);
-	if (!t || !f) {
-		kfree(f);
-		kfree(t);
+	t = kzalloc(sizeof(*t), GFP_ATOMIC);
+	if (!t) {
 		printk(KERN_INFO "aoe: cannot allocate memory to add target\n");
 		return NULL;
 	}
 
+	d->ntargets++;
 	t->nframes = nframes;
-	t->frames = f;
-	e = f + nframes;
-	for (; f < e; f++)
-		f->tag = FREETAG;
+	t->d = d;
 	memcpy(t->addr, addr, sizeof t->addr);
 	t->ifp = t->ifs;
 	t->maxout = t->nframes;
+	INIT_LIST_HEAD(&t->ffree);
 	return *tt = t;
 }
 
+static void
+setdbcnt(struct aoedev *d)
+{
+	struct aoetgt **t, **e;
+	int bcnt = 0;
+
+	t = d->targets;
+	e = t + NTARGETS;
+	for (; t < e && *t; t++)
+		if (bcnt == 0 || bcnt > (*t)->minbcnt)
+			bcnt = (*t)->minbcnt;
+	if (bcnt != d->maxbcnt) {
+		d->maxbcnt = bcnt;
+		pr_info("aoe: e%ld.%d: setting %d byte data frames\n",
+			d->aoemajor, d->aoeminor, bcnt);
+	}
+}
+
+static void
+setifbcnt(struct aoetgt *t, struct net_device *nd, int bcnt)
+{
+	struct aoedev *d;
+	struct aoeif *p, *e;
+	int minbcnt;
+
+	d = t->d;
+	minbcnt = bcnt;
+	p = t->ifs;
+	e = p + NAOEIFS;
+	for (; p < e; p++) {
+		if (p->nd == NULL)
+			break;		/* end of the valid interfaces */
+		if (p->nd == nd) {
+			p->bcnt = bcnt;	/* we're updating */
+			nd = NULL;
+		} else if (minbcnt > p->bcnt)
+			minbcnt = p->bcnt; /* find the min interface */
+	}
+	if (nd) {
+		if (p == e) {
+			pr_err("aoe: device setifbcnt failure; too many interfaces.\n");
+			return;
+		}
+		dev_hold(nd);
+		p->nd = nd;
+		p->bcnt = bcnt;
+	}
+	t->minbcnt = minbcnt;
+	setdbcnt(d);
+}
+
 void
 aoecmd_cfg_rsp(struct sk_buff *skb)
 {
@@ -968,11 +1330,12 @@ aoecmd_cfg_rsp(struct sk_buff *skb)
 	struct aoe_hdr *h;
 	struct aoe_cfghdr *ch;
 	struct aoetgt *t;
-	struct aoeif *ifp;
-	ulong flags, sysminor, aoemajor;
+	ulong flags, aoemajor;
 	struct sk_buff *sl;
+	struct sk_buff_head queue;
 	u16 n;
 
+	sl = NULL;
 	h = (struct aoe_hdr *) skb_mac_header(skb);
 	ch = (struct aoe_cfghdr *) (h+1);
 
@@ -986,10 +1349,13 @@ aoecmd_cfg_rsp(struct sk_buff *skb)
 			"Check shelf dip switches.\n");
 		return;
 	}
-
-	sysminor = SYSMINOR(aoemajor, h->minor);
-	if (sysminor * AOE_PARTITIONS + AOE_PARTITIONS > MINORMASK) {
-		printk(KERN_INFO "aoe: e%ld.%d: minor number too large\n",
+	if (aoemajor == 0xffff) {
+		pr_info("aoe: e%ld.%d: broadcast shelf number invalid\n",
+			aoemajor, (int) h->minor);
+		return;
+	}
+	if (h->minor == 0xff) {
+		pr_info("aoe: e%ld.%d: broadcast slot number invalid\n",
 			aoemajor, (int) h->minor);
 		return;
 	}
@@ -998,9 +1364,9 @@ aoecmd_cfg_rsp(struct sk_buff *skb)
 	if (n > aoe_maxout)	/* keep it reasonable */
 		n = aoe_maxout;
 
-	d = aoedev_by_sysminor_m(sysminor);
+	d = aoedev_by_aoeaddr(aoemajor, h->minor, 1);
 	if (d == NULL) {
-		printk(KERN_INFO "aoe: device sysminor_m failure\n");
+		pr_info("aoe: device allocation failure\n");
 		return;
 	}
 
@@ -1009,52 +1375,26 @@ aoecmd_cfg_rsp(struct sk_buff *skb)
 	t = gettgt(d, h->src);
 	if (!t) {
 		t = addtgt(d, h->src, n);
-		if (!t) {
-			spin_unlock_irqrestore(&d->lock, flags);
-			return;
-		}
-	}
-	ifp = getif(t, skb->dev);
-	if (!ifp) {
-		ifp = addif(t, skb->dev);
-		if (!ifp) {
-			printk(KERN_INFO
-				"aoe: device addif failure; "
-				"too many interfaces?\n");
-			spin_unlock_irqrestore(&d->lock, flags);
-			return;
-		}
-	}
-	if (ifp->maxbcnt) {
-		n = ifp->nd->mtu;
-		n -= sizeof (struct aoe_hdr) + sizeof (struct aoe_atahdr);
-		n /= 512;
-		if (n > ch->scnt)
-			n = ch->scnt;
-		n = n ? n * 512 : DEFAULTBCNT;
-		if (n != ifp->maxbcnt) {
-			printk(KERN_INFO
-				"aoe: e%ld.%d: setting %d%s%s:%pm\n",
-				d->aoemajor, d->aoeminor, n,
-				" byte data frames on ", ifp->nd->name,
-				t->addr);
-			ifp->maxbcnt = n;
-		}
+		if (!t)
+			goto bail;
 	}
+	n = skb->dev->mtu;
+	n -= sizeof(struct aoe_hdr) + sizeof(struct aoe_atahdr);
+	n /= 512;
+	if (n > ch->scnt)
+		n = ch->scnt;
+	n = n ? n * 512 : DEFAULTBCNT;
+	setifbcnt(t, skb->dev, n);
 
 	/* don't change users' perspective */
-	if (d->nopen) {
-		spin_unlock_irqrestore(&d->lock, flags);
-		return;
+	if (d->nopen == 0) {
+		d->fw_ver = be16_to_cpu(ch->fwver);
+		sl = aoecmd_ata_id(d);
 	}
-	d->fw_ver = be16_to_cpu(ch->fwver);
-
-	sl = aoecmd_ata_id(d);
-
+bail:
 	spin_unlock_irqrestore(&d->lock, flags);
-
+	aoedev_put(d);
 	if (sl) {
-		struct sk_buff_head queue;
 		__skb_queue_head_init(&queue);
 		__skb_queue_tail(&queue, sl);
 		aoenet_xmit(&queue);
@@ -1065,20 +1405,74 @@ void
 aoecmd_cleanslate(struct aoedev *d)
 {
 	struct aoetgt **t, **te;
-	struct aoeif *p, *e;
 
 	d->mintimer = MINTIMER;
+	d->maxbcnt = 0;
 
 	t = d->targets;
 	te = t + NTARGETS;
-	for (; t < te && *t; t++) {
+	for (; t < te && *t; t++)
 		(*t)->maxout = (*t)->nframes;
-		p = (*t)->ifs;
-		e = p + NAOEIFS;
-		for (; p < e; p++) {
-			p->lostjumbo = 0;
-			p->lost = 0;
-			p->maxbcnt = DEFAULTBCNT;
+}
+
+void
+aoe_failbuf(struct aoedev *d, struct buf *buf)
+{
+	if (buf == NULL)
+		return;
+	buf->resid = 0;
+	clear_bit(BIO_UPTODATE, &buf->bio->bi_flags);
+	if (buf->nframesout == 0)
+		aoe_end_buf(d, buf);
+}
+
+void
+aoe_flush_iocq(void)
+{
+	struct frame *f;
+	struct aoedev *d;
+	LIST_HEAD(flist);
+	struct list_head *pos;
+	struct sk_buff *skb;
+	ulong flags;
+
+	spin_lock_irqsave(&iocq.lock, flags);
+	list_splice_init(&iocq.head, &flist);
+	spin_unlock_irqrestore(&iocq.lock, flags);
+	while (!list_empty(&flist)) {
+		pos = flist.next;
+		list_del(pos);
+		f = list_entry(pos, struct frame, head);
+		d = f->t->d;
+		skb = f->r_skb;
+		spin_lock_irqsave(&d->lock, flags);
+		if (f->buf) {
+			f->buf->nframesout--;
+			aoe_failbuf(d, f->buf);
 		}
+		aoe_freetframe(f);
+		spin_unlock_irqrestore(&d->lock, flags);
+		dev_kfree_skb(skb);
+		aoedev_put(d);
 	}
 }
+
+int __init
+aoecmd_init(void)
+{
+	INIT_LIST_HEAD(&iocq.head);
+	spin_lock_init(&iocq.lock);
+	init_waitqueue_head(&ktiowq);
+	kts.name = "aoe_ktio";
+	kts.fn = ktio;
+	kts.waitq = &ktiowq;
+	kts.lock = &iocq.lock;
+	return aoe_ktstart(&kts);
+}
+
+void
+aoecmd_exit(void)
+{
+	aoe_ktstop(&kts);
+	aoe_flush_iocq();
+}
diff --git a/drivers/block/aoe/aoedev.c b/drivers/block/aoe/aoedev.c
index 6b5110a47458..90e5b537f94b 100644
--- a/drivers/block/aoe/aoedev.c
+++ b/drivers/block/aoe/aoedev.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007 Coraid, Inc.  See COPYING for GPL terms. */
+/* Copyright (c) 2012 Coraid, Inc.  See COPYING for GPL terms. */
 /*
  * aoedev.c
  * AoE device utility functions; maintains device list.
@@ -9,6 +9,9 @@
 #include <linux/netdevice.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
+#include <linux/bitmap.h>
+#include <linux/kdev_t.h>
+#include <linux/moduleparam.h>
 #include "aoe.h"
 
 static void dummy_timer(ulong);
@@ -16,23 +19,121 @@ static void aoedev_freedev(struct aoedev *);
 static void freetgt(struct aoedev *d, struct aoetgt *t);
 static void skbpoolfree(struct aoedev *d);
 
+static int aoe_dyndevs = 1;
+module_param(aoe_dyndevs, int, 0644);
+MODULE_PARM_DESC(aoe_dyndevs, "Use dynamic minor numbers for devices.");
+
 static struct aoedev *devlist;
 static DEFINE_SPINLOCK(devlist_lock);
 
-struct aoedev *
-aoedev_by_aoeaddr(int maj, int min)
+/* Because some systems will have one, many, or no
+ *   - partitions,
+ *   - slots per shelf,
+ *   - or shelves,
+ * we need some flexibility in the way the minor numbers
+ * are allocated.  So they are dynamic.
+ */
+#define N_DEVS ((1U<<MINORBITS)/AOE_PARTITIONS)
+
+static DEFINE_SPINLOCK(used_minors_lock);
+static DECLARE_BITMAP(used_minors, N_DEVS);
+
+static int
+minor_get_dyn(ulong *sysminor)
 {
-	struct aoedev *d;
 	ulong flags;
+	ulong n;
+	int error = 0;
+
+	spin_lock_irqsave(&used_minors_lock, flags);
+	n = find_first_zero_bit(used_minors, N_DEVS);
+	if (n < N_DEVS)
+		set_bit(n, used_minors);
+	else
+		error = -1;
+	spin_unlock_irqrestore(&used_minors_lock, flags);
+
+	*sysminor = n * AOE_PARTITIONS;
+	return error;
+}
 
-	spin_lock_irqsave(&devlist_lock, flags);
+static int
+minor_get_static(ulong *sysminor, ulong aoemaj, int aoemin)
+{
+	ulong flags;
+	ulong n;
+	int error = 0;
+	enum {
+		/* for backwards compatibility when !aoe_dyndevs,
+		 * a static number of supported slots per shelf */
+		NPERSHELF = 16,
+	};
+
+	n = aoemaj * NPERSHELF + aoemin;
+	if (aoemin >= NPERSHELF || n >= N_DEVS) {
+		pr_err("aoe: %s with e%ld.%d\n",
+			"cannot use static minor device numbers",
+			aoemaj, aoemin);
+		error = -1;
+	} else {
+		spin_lock_irqsave(&used_minors_lock, flags);
+		if (test_bit(n, used_minors)) {
+			pr_err("aoe: %s %lu\n",
+				"existing device already has static minor number",
+				n);
+			error = -1;
+		} else
+			set_bit(n, used_minors);
+		spin_unlock_irqrestore(&used_minors_lock, flags);
+	}
 
-	for (d=devlist; d; d=d->next)
-		if (d->aoemajor == maj && d->aoeminor == min)
-			break;
+	*sysminor = n;
+	return error;
+}
+
+static int
+minor_get(ulong *sysminor, ulong aoemaj, int aoemin)
+{
+	if (aoe_dyndevs)
+		return minor_get_dyn(sysminor);
+	else
+		return minor_get_static(sysminor, aoemaj, aoemin);
+}
+
+static void
+minor_free(ulong minor)
+{
+	ulong flags;
+
+	minor /= AOE_PARTITIONS;
+	BUG_ON(minor >= N_DEVS);
+
+	spin_lock_irqsave(&used_minors_lock, flags);
+	BUG_ON(!test_bit(minor, used_minors));
+	clear_bit(minor, used_minors);
+	spin_unlock_irqrestore(&used_minors_lock, flags);
+}
+
+/*
+ * Users who grab a pointer to the device with aoedev_by_aoeaddr
+ * automatically get a reference count and must be responsible
+ * for performing a aoedev_put.  With the addition of async
+ * kthread processing I'm no longer confident that we can
+ * guarantee consistency in the face of device flushes.
+ *
+ * For the time being, we only bother to add extra references for
+ * frames sitting on the iocq.  When the kthreads finish processing
+ * these frames, they will aoedev_put the device.
+ */
+
+void
+aoedev_put(struct aoedev *d)
+{
+	ulong flags;
 
+	spin_lock_irqsave(&devlist_lock, flags);
+	d->ref--;
 	spin_unlock_irqrestore(&devlist_lock, flags);
-	return d;
 }
 
 static void
@@ -47,54 +148,74 @@ dummy_timer(ulong vp)
 	add_timer(&d->timer);
 }
 
+static void
+aoe_failip(struct aoedev *d)
+{
+	struct request *rq;
+	struct bio *bio;
+	unsigned long n;
+
+	aoe_failbuf(d, d->ip.buf);
+
+	rq = d->ip.rq;
+	if (rq == NULL)
+		return;
+	while ((bio = d->ip.nxbio)) {
+		clear_bit(BIO_UPTODATE, &bio->bi_flags);
+		d->ip.nxbio = bio->bi_next;
+		n = (unsigned long) rq->special;
+		rq->special = (void *) --n;
+	}
+	if ((unsigned long) rq->special == 0)
+		aoe_end_request(d, rq, 0);
+}
+
 void
 aoedev_downdev(struct aoedev *d)
 {
-	struct aoetgt **t, **te;
-	struct frame *f, *e;
-	struct buf *buf;
-	struct bio *bio;
+	struct aoetgt *t, **tt, **te;
+	struct frame *f;
+	struct list_head *head, *pos, *nx;
+	struct request *rq;
+	int i;
 
-	t = d->targets;
-	te = t + NTARGETS;
-	for (; t < te && *t; t++) {
-		f = (*t)->frames;
-		e = f + (*t)->nframes;
-		for (; f < e; f->tag = FREETAG, f->buf = NULL, f++) {
-			if (f->tag == FREETAG || f->buf == NULL)
-				continue;
-			buf = f->buf;
-			bio = buf->bio;
-			if (--buf->nframesout == 0
-			&& buf != d->inprocess) {
-				mempool_free(buf, d->bufpool);
-				bio_endio(bio, -EIO);
+	d->flags &= ~DEVFL_UP;
+
+	/* clean out active buffers */
+	for (i = 0; i < NFACTIVE; i++) {
+		head = &d->factive[i];
+		list_for_each_safe(pos, nx, head) {
+			f = list_entry(pos, struct frame, head);
+			list_del(pos);
+			if (f->buf) {
+				f->buf->nframesout--;
+				aoe_failbuf(d, f->buf);
 			}
+			aoe_freetframe(f);
 		}
-		(*t)->maxout = (*t)->nframes;
-		(*t)->nout = 0;
 	}
-	buf = d->inprocess;
-	if (buf) {
-		bio = buf->bio;
-		mempool_free(buf, d->bufpool);
-		bio_endio(bio, -EIO);
+	/* reset window dressings */
+	tt = d->targets;
+	te = tt + NTARGETS;
+	for (; tt < te && (t = *tt); tt++) {
+		t->maxout = t->nframes;
+		t->nout = 0;
 	}
-	d->inprocess = NULL;
+
+	/* clean out the in-process request (if any) */
+	aoe_failip(d);
 	d->htgt = NULL;
 
-	while (!list_empty(&d->bufq)) {
-		buf = container_of(d->bufq.next, struct buf, bufs);
-		list_del(d->bufq.next);
-		bio = buf->bio;
-		mempool_free(buf, d->bufpool);
-		bio_endio(bio, -EIO);
+	/* fast fail all pending I/O */
+	if (d->blkq) {
+		while ((rq = blk_peek_request(d->blkq))) {
+			blk_start_request(rq);
+			aoe_end_request(d, rq, 1);
+		}
 	}
 
 	if (d->gd)
 		set_capacity(d->gd, 0);
-
-	d->flags &= ~DEVFL_UP;
 }
 
 static void
@@ -107,6 +228,7 @@ aoedev_freedev(struct aoedev *d)
 		aoedisk_rm_sysfs(d);
 		del_gendisk(d->gd);
 		put_disk(d->gd);
+		blk_cleanup_queue(d->blkq);
 	}
 	t = d->targets;
 	e = t + NTARGETS;
@@ -115,7 +237,7 @@ aoedev_freedev(struct aoedev *d)
 	if (d->bufpool)
 		mempool_destroy(d->bufpool);
 	skbpoolfree(d);
-	blk_cleanup_queue(d->blkq);
+	minor_free(d->sysminor);
 	kfree(d);
 }
 
@@ -142,7 +264,8 @@ aoedev_flush(const char __user *str, size_t cnt)
 		spin_lock(&d->lock);
 		if ((!all && (d->flags & DEVFL_UP))
 		|| (d->flags & (DEVFL_GDALLOC|DEVFL_NEWSIZE))
-		|| d->nopen) {
+		|| d->nopen
+		|| d->ref) {
 			spin_unlock(&d->lock);
 			dd = &d->next;
 			continue;
@@ -163,12 +286,15 @@ aoedev_flush(const char __user *str, size_t cnt)
 	return 0;
 }
 
-/* I'm not really sure that this is a realistic problem, but if the
-network driver goes gonzo let's just leak memory after complaining. */
+/* This has been confirmed to occur once with Tms=3*1000 due to the
+ * driver changing link and not processing its transmit ring.  The
+ * problem is hard enough to solve by returning an error that I'm
+ * still punting on "solving" this.
+ */
 static void
 skbfree(struct sk_buff *skb)
 {
-	enum { Sms = 100, Tms = 3*1000};
+	enum { Sms = 250, Tms = 30 * 1000};
 	int i = Tms / Sms;
 
 	if (skb == NULL)
@@ -182,6 +308,7 @@ skbfree(struct sk_buff *skb)
 			"cannot free skb -- memory leaked.");
 		return;
 	}
+	skb->truesize -= skb->data_len;
 	skb_shinfo(skb)->nr_frags = skb->data_len = 0;
 	skb_trim(skb, 0);
 	dev_kfree_skb(skb);
@@ -198,26 +325,29 @@ skbpoolfree(struct aoedev *d)
 	__skb_queue_head_init(&d->skbpool);
 }
 
-/* find it or malloc it */
+/* find it or allocate it */
 struct aoedev *
-aoedev_by_sysminor_m(ulong sysminor)
+aoedev_by_aoeaddr(ulong maj, int min, int do_alloc)
 {
 	struct aoedev *d;
+	int i;
 	ulong flags;
+	ulong sysminor;
 
 	spin_lock_irqsave(&devlist_lock, flags);
 
 	for (d=devlist; d; d=d->next)
-		if (d->sysminor == sysminor)
+		if (d->aoemajor == maj && d->aoeminor == min) {
+			d->ref++;
 			break;
-	if (d)
+		}
+	if (d || !do_alloc || minor_get(&sysminor, maj, min) < 0)
 		goto out;
 	d = kcalloc(1, sizeof *d, GFP_ATOMIC);
 	if (!d)
 		goto out;
 	INIT_WORK(&d->work, aoecmd_sleepwork);
 	spin_lock_init(&d->lock);
-	skb_queue_head_init(&d->sendq);
 	skb_queue_head_init(&d->skbpool);
 	init_timer(&d->timer);
 	d->timer.data = (ulong) d;
@@ -226,10 +356,12 @@ aoedev_by_sysminor_m(ulong sysminor)
 	add_timer(&d->timer);
 	d->bufpool = NULL;	/* defer to aoeblk_gdalloc */
 	d->tgt = d->targets;
-	INIT_LIST_HEAD(&d->bufq);
+	d->ref = 1;
+	for (i = 0; i < NFACTIVE; i++)
+		INIT_LIST_HEAD(&d->factive[i]);
 	d->sysminor = sysminor;
-	d->aoemajor = AOEMAJOR(sysminor);
-	d->aoeminor = AOEMINOR(sysminor);
+	d->aoemajor = maj;
+	d->aoeminor = min;
 	d->mintimer = MINTIMER;
 	d->next = devlist;
 	devlist = d;
@@ -241,13 +373,23 @@ aoedev_by_sysminor_m(ulong sysminor)
 static void
 freetgt(struct aoedev *d, struct aoetgt *t)
 {
-	struct frame *f, *e;
+	struct frame *f;
+	struct list_head *pos, *nx, *head;
+	struct aoeif *ifp;
 
-	f = t->frames;
-	e = f + t->nframes;
-	for (; f < e; f++)
+	for (ifp = t->ifs; ifp < &t->ifs[NAOEIFS]; ++ifp) {
+		if (!ifp->nd)
+			break;
+		dev_put(ifp->nd);
+	}
+
+	head = &t->ffree;
+	list_for_each_safe(pos, nx, head) {
+		list_del(pos);
+		f = list_entry(pos, struct frame, head);
 		skbfree(f->skb);
-	kfree(t->frames);
+		kfree(f);
+	}
 	kfree(t);
 }
 
@@ -257,6 +399,7 @@ aoedev_exit(void)
 	struct aoedev *d;
 	ulong flags;
 
+	aoe_flush_iocq();
 	while ((d = devlist)) {
 		devlist = d->next;
 
diff --git a/drivers/block/aoe/aoemain.c b/drivers/block/aoe/aoemain.c
index 7f83ad90e76f..04793c2c701b 100644
--- a/drivers/block/aoe/aoemain.c
+++ b/drivers/block/aoe/aoemain.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007 Coraid, Inc.  See COPYING for GPL terms. */
+/* Copyright (c) 2012 Coraid, Inc.  See COPYING for GPL terms. */
 /*
  * aoemain.c
  * Module initialization routines, discover timer
@@ -61,6 +61,7 @@ aoe_exit(void)
 
 	aoenet_exit();
 	unregister_blkdev(AOE_MAJOR, DEVICE_NAME);
+	aoecmd_exit();
 	aoechr_exit();
 	aoedev_exit();
 	aoeblk_exit();		/* free cache after de-allocating bufs */
@@ -83,17 +84,20 @@ aoe_init(void)
 	ret = aoenet_init();
 	if (ret)
 		goto net_fail;
+	ret = aoecmd_init();
+	if (ret)
+		goto cmd_fail;
 	ret = register_blkdev(AOE_MAJOR, DEVICE_NAME);
 	if (ret < 0) {
 		printk(KERN_ERR "aoe: can't register major\n");
 		goto blkreg_fail;
 	}
-
 	printk(KERN_INFO "aoe: AoE v%s initialised.\n", VERSION);
 	discover_timer(TINIT);
 	return 0;
-
  blkreg_fail:
+	aoecmd_exit();
+ cmd_fail:
 	aoenet_exit();
  net_fail:
 	aoeblk_exit();
diff --git a/drivers/block/aoe/aoenet.c b/drivers/block/aoe/aoenet.c
index 4d3bc0d49df5..162c6471275c 100644
--- a/drivers/block/aoe/aoenet.c
+++ b/drivers/block/aoe/aoenet.c
@@ -1,4 +1,4 @@
-/* Copyright (c) 2007 Coraid, Inc.  See COPYING for GPL terms. */
+/* Copyright (c) 2012 Coraid, Inc.  See COPYING for GPL terms. */
 /*
  * aoenet.c
  * Ethernet portion of AoE driver
@@ -33,6 +33,9 @@ static char aoe_iflist[IFLISTSZ];
 module_param_string(aoe_iflist, aoe_iflist, IFLISTSZ, 0600);
 MODULE_PARM_DESC(aoe_iflist, "aoe_iflist=\"dev1 [dev2 ...]\"");
 
+static wait_queue_head_t txwq;
+static struct ktstate kts;
+
 #ifndef MODULE
 static int __init aoe_iflist_setup(char *str)
 {
@@ -44,6 +47,23 @@ static int __init aoe_iflist_setup(char *str)
 __setup("aoe_iflist=", aoe_iflist_setup);
 #endif
 
+static spinlock_t txlock;
+static struct sk_buff_head skbtxq;
+
+/* enters with txlock held */
+static int
+tx(void)
+{
+	struct sk_buff *skb;
+
+	while ((skb = skb_dequeue(&skbtxq))) {
+		spin_unlock_irq(&txlock);
+		dev_queue_xmit(skb);
+		spin_lock_irq(&txlock);
+	}
+	return 0;
+}
+
 int
 is_aoe_netif(struct net_device *ifp)
 {
@@ -88,10 +108,14 @@ void
 aoenet_xmit(struct sk_buff_head *queue)
 {
 	struct sk_buff *skb, *tmp;
+	ulong flags;
 
 	skb_queue_walk_safe(queue, skb, tmp) {
 		__skb_unlink(skb, queue);
-		dev_queue_xmit(skb);
+		spin_lock_irqsave(&txlock, flags);
+		skb_queue_tail(&skbtxq, skb);
+		spin_unlock_irqrestore(&txlock, flags);
+		wake_up(&txwq);
 	}
 }
 
@@ -102,7 +126,9 @@ static int
 aoenet_rcv(struct sk_buff *skb, struct net_device *ifp, struct packet_type *pt, struct net_device *orig_dev)
 {
 	struct aoe_hdr *h;
+	struct aoe_atahdr *ah;
 	u32 n;
+	int sn;
 
 	if (dev_net(ifp) != &init_net)
 		goto exit;
@@ -110,13 +136,16 @@ aoenet_rcv(struct sk_buff *skb, struct net_device *ifp, struct packet_type *pt,
 	skb = skb_share_check(skb, GFP_ATOMIC);
 	if (skb == NULL)
 		return 0;
-	if (skb_linearize(skb))
-		goto exit;
 	if (!is_aoe_netif(ifp))
 		goto exit;
 	skb_push(skb, ETH_HLEN);	/* (1) */
-
-	h = (struct aoe_hdr *) skb_mac_header(skb);
+	sn = sizeof(*h) + sizeof(*ah);
+	if (skb->len >= sn) {
+		sn -= skb_headlen(skb);
+		if (sn > 0 && !__pskb_pull_tail(skb, sn))
+			goto exit;
+	}
+	h = (struct aoe_hdr *) skb->data;
 	n = get_unaligned_be32(&h->tag);
 	if ((h->verfl & AOEFL_RSP) == 0 || (n & 1<<31))
 		goto exit;
@@ -137,7 +166,8 @@ aoenet_rcv(struct sk_buff *skb, struct net_device *ifp, struct packet_type *pt,
 
 	switch (h->cmd) {
 	case AOECMD_ATA:
-		aoecmd_ata_rsp(skb);
+		/* ata_rsp may keep skb for later processing or give it back */
+		skb = aoecmd_ata_rsp(skb);
 		break;
 	case AOECMD_CFG:
 		aoecmd_cfg_rsp(skb);
@@ -145,8 +175,12 @@ aoenet_rcv(struct sk_buff *skb, struct net_device *ifp, struct packet_type *pt,
 	default:
 		if (h->cmd >= AOECMD_VEND_MIN)
 			break;	/* don't complain about vendor commands */
-		printk(KERN_INFO "aoe: unknown cmd %d\n", h->cmd);
+		pr_info("aoe: unknown AoE command type 0x%02x\n", h->cmd);
+		break;
 	}
+
+	if (!skb)
+		return 0;
 exit:
 	dev_kfree_skb(skb);
 	return 0;
@@ -160,6 +194,15 @@ static struct packet_type aoe_pt __read_mostly = {
 int __init
 aoenet_init(void)
 {
+	skb_queue_head_init(&skbtxq);
+	init_waitqueue_head(&txwq);
+	spin_lock_init(&txlock);
+	kts.lock = &txlock;
+	kts.fn = tx;
+	kts.waitq = &txwq;
+	kts.name = "aoe_tx";
+	if (aoe_ktstart(&kts))
+		return -EAGAIN;
 	dev_add_pack(&aoe_pt);
 	return 0;
 }
@@ -167,6 +210,8 @@ aoenet_init(void)
 void
 aoenet_exit(void)
 {
+	aoe_ktstop(&kts);
+	skb_queue_purge(&skbtxq);
 	dev_remove_pack(&aoe_pt);
 }
 
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 0c03411c59eb..043ddcca4abf 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -78,6 +78,8 @@ static const char *ioctl_cmd_to_ascii(int cmd)
 	case NBD_SET_SOCK: return "set-sock";
 	case NBD_SET_BLKSIZE: return "set-blksize";
 	case NBD_SET_SIZE: return "set-size";
+	case NBD_SET_TIMEOUT: return "set-timeout";
+	case NBD_SET_FLAGS: return "set-flags";
 	case NBD_DO_IT: return "do-it";
 	case NBD_CLEAR_SOCK: return "clear-sock";
 	case NBD_CLEAR_QUE: return "clear-que";
@@ -96,6 +98,7 @@ static const char *nbdcmd_to_ascii(int cmd)
 	case  NBD_CMD_READ: return "read";
 	case NBD_CMD_WRITE: return "write";
 	case  NBD_CMD_DISC: return "disconnect";
+	case  NBD_CMD_TRIM: return "trim/discard";
 	}
 	return "invalid";
 }
@@ -467,8 +470,12 @@ static void nbd_handle_req(struct nbd_device *nbd, struct request *req)
 
 	nbd_cmd(req) = NBD_CMD_READ;
 	if (rq_data_dir(req) == WRITE) {
-		nbd_cmd(req) = NBD_CMD_WRITE;
-		if (nbd->flags & NBD_READ_ONLY) {
+		if ((req->cmd_flags & REQ_DISCARD)) {
+			WARN_ON(!(nbd->flags & NBD_FLAG_SEND_TRIM));
+			nbd_cmd(req) = NBD_CMD_TRIM;
+		} else
+			nbd_cmd(req) = NBD_CMD_WRITE;
+		if (nbd->flags & NBD_FLAG_READ_ONLY) {
 			dev_err(disk_to_dev(nbd->disk),
 				"Write on read-only\n");
 			goto error_out;
@@ -651,6 +658,10 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
 		nbd->xmit_timeout = arg * HZ;
 		return 0;
 
+	case NBD_SET_FLAGS:
+		nbd->flags = arg;
+		return 0;
+
 	case NBD_SET_SIZE_BLOCKS:
 		nbd->bytesize = ((u64) arg) * nbd->blksize;
 		bdev->bd_inode->i_size = nbd->bytesize;
@@ -670,6 +681,10 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
 
 		mutex_unlock(&nbd->tx_lock);
 
+		if (nbd->flags & NBD_FLAG_SEND_TRIM)
+			queue_flag_set_unlocked(QUEUE_FLAG_DISCARD,
+				nbd->disk->queue);
+
 		thread = kthread_create(nbd_thread, nbd, nbd->disk->disk_name);
 		if (IS_ERR(thread)) {
 			mutex_lock(&nbd->tx_lock);
@@ -687,6 +702,7 @@ static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *nbd,
 		nbd->file = NULL;
 		nbd_clear_que(nbd);
 		dev_warn(disk_to_dev(nbd->disk), "queue cleared\n");
+		queue_flag_clear_unlocked(QUEUE_FLAG_DISCARD, nbd->disk->queue);
 		if (file)
 			fput(file);
 		nbd->bytesize = 0;
@@ -805,6 +821,9 @@ static int __init nbd_init(void)
 		 * Tell the block layer that we are not a rotational device
 		 */
 		queue_flag_set_unlocked(QUEUE_FLAG_NONROT, disk->queue);
+		disk->queue->limits.discard_granularity = 512;
+		disk->queue->limits.max_discard_sectors = UINT_MAX;
+		disk->queue->limits.discard_zeroes_data = 0;
 	}
 
 	if (register_blkdev(NBD_MAJOR, "nbd")) {
diff --git a/drivers/char/mbcs.c b/drivers/char/mbcs.c
index 47ff7e470d87..0c7d340b9ab9 100644
--- a/drivers/char/mbcs.c
+++ b/drivers/char/mbcs.c
@@ -799,7 +799,7 @@ static int mbcs_remove(struct cx_dev *dev)
 	return 0;
 }
 
-static const struct cx_device_id __devinitdata mbcs_id_table[] = {
+static const struct cx_device_id __devinitconst mbcs_id_table[] = {
 	{
 	 .part_num = MBCS_PART_NUM,
 	 .mfg_num = MBCS_MFG_NUM,
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 3491654cdf7b..a815d44c70a4 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -582,7 +582,7 @@ void dmaengine_get(void)
 				list_del_rcu(&device->global_node);
 				break;
 			} else if (err)
-				pr_err("%s: failed to get %s: (%d)\n",
+				pr_debug("%s: failed to get %s: (%d)\n",
 				       __func__, dma_chan_name(chan), err);
 		}
 	}
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 2091ae8f539a..2421d95130d4 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -982,7 +982,7 @@ int i2c_add_numbered_adapter(struct i2c_adapter *adap)
 
 	if (adap->nr == -1) /* -1 means dynamically assign bus id */
 		return i2c_add_adapter(adap);
-	if (adap->nr & ~MAX_ID_MASK)
+	if (adap->nr & ~MAX_IDR_MASK)
 		return -EINVAL;
 
 retry:
diff --git a/drivers/ide/aec62xx.c b/drivers/ide/aec62xx.c
index 57d00caefc86..01451940393b 100644
--- a/drivers/ide/aec62xx.c
+++ b/drivers/ide/aec62xx.c
@@ -181,7 +181,7 @@ static const struct ide_port_ops atp86x_port_ops = {
 	.cable_detect		= atp86x_cable_detect,
 };
 
-static const struct ide_port_info aec62xx_chipsets[] __devinitdata = {
+static const struct ide_port_info aec62xx_chipsets[] __devinitconst = {
 	{	/* 0: AEC6210 */
 		.name		= DRV_NAME,
 		.init_chipset	= init_chipset_aec62xx,
diff --git a/drivers/ide/ali14xx.c b/drivers/ide/ali14xx.c
index d3be99fb4154..8f3570ee64c3 100644
--- a/drivers/ide/ali14xx.c
+++ b/drivers/ide/ali14xx.c
@@ -52,13 +52,13 @@
 
 /* port addresses for auto-detection */
 #define ALI_NUM_PORTS 4
-static const int ports[ALI_NUM_PORTS] __initdata =
+static const int ports[ALI_NUM_PORTS] __initconst =
 	{ 0x074, 0x0f4, 0x034, 0x0e4 };
 
 /* register initialization data */
 typedef struct { u8 reg, data; } RegInitializer;
 
-static const RegInitializer initData[] __initdata = {
+static const RegInitializer initData[] __initconst = {
 	{0x01, 0x0f}, {0x02, 0x00}, {0x03, 0x00}, {0x04, 0x00},
 	{0x05, 0x00}, {0x06, 0x00}, {0x07, 0x2b}, {0x0a, 0x0f},
 	{0x25, 0x00}, {0x26, 0x00}, {0x27, 0x00}, {0x28, 0x00},
diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c
index 2c8016ad0e26..911a27ca356b 100644
--- a/drivers/ide/alim15x3.c
+++ b/drivers/ide/alim15x3.c
@@ -512,7 +512,7 @@ static const struct ide_dma_ops ali_dma_ops = {
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
 
-static const struct ide_port_info ali15x3_chipset __devinitdata = {
+static const struct ide_port_info ali15x3_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.init_chipset	= init_chipset_ali15x3,
 	.init_hwif	= init_hwif_ali15x3,
diff --git a/drivers/ide/amd74xx.c b/drivers/ide/amd74xx.c
index 3747b2561f09..56fc99557ba2 100644
--- a/drivers/ide/amd74xx.c
+++ b/drivers/ide/amd74xx.c
@@ -223,7 +223,7 @@ static const struct ide_port_ops amd_port_ops = {
 		.udma_mask	= udma,					\
 	}
 
-static const struct ide_port_info amd74xx_chipsets[] __devinitdata = {
+static const struct ide_port_info amd74xx_chipsets[] __devinitconst = {
 	/* 0: AMD7401 */	DECLARE_AMD_DEV(0x00, ATA_UDMA2),
 	/* 1: AMD7409 */	DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA4),
 	/* 2: AMD7411/7441 */	DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA5),
diff --git a/drivers/ide/atiixp.c b/drivers/ide/atiixp.c
index 15f0ead89f5c..cb43480b1bd5 100644
--- a/drivers/ide/atiixp.c
+++ b/drivers/ide/atiixp.c
@@ -139,7 +139,7 @@ static const struct ide_port_ops atiixp_port_ops = {
 	.cable_detect		= atiixp_cable_detect,
 };
 
-static const struct ide_port_info atiixp_pci_info[] __devinitdata = {
+static const struct ide_port_info atiixp_pci_info[] __devinitconst = {
 	{	/* 0: IXP200/300/400/700 */
 		.name		= DRV_NAME,
 		.enablebits	= {{0x48,0x01,0x00}, {0x48,0x08,0x00}},
diff --git a/drivers/ide/cmd640.c b/drivers/ide/cmd640.c
index 14717304b388..70f0a2754c13 100644
--- a/drivers/ide/cmd640.c
+++ b/drivers/ide/cmd640.c
@@ -685,7 +685,7 @@ static int pci_conf2(void)
 	return 0;
 }
 
-static const struct ide_port_info cmd640_port_info __initdata = {
+static const struct ide_port_info cmd640_port_info __initconst = {
 	.chipset		= ide_cmd640,
 	.host_flags		= IDE_HFLAG_SERIALIZE |
 				  IDE_HFLAG_NO_DMA |
diff --git a/drivers/ide/cmd64x.c b/drivers/ide/cmd64x.c
index 5f80312e636b..d1fc43802f5d 100644
--- a/drivers/ide/cmd64x.c
+++ b/drivers/ide/cmd64x.c
@@ -327,7 +327,7 @@ static const struct ide_dma_ops cmd646_rev1_dma_ops = {
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
 
-static const struct ide_port_info cmd64x_chipsets[] __devinitdata = {
+static const struct ide_port_info cmd64x_chipsets[] __devinitconst = {
 	{	/* 0: CMD643 */
 		.name		= DRV_NAME,
 		.init_chipset	= init_chipset_cmd64x,
diff --git a/drivers/ide/cs5520.c b/drivers/ide/cs5520.c
index 2c1e5f7cd261..14447621e60b 100644
--- a/drivers/ide/cs5520.c
+++ b/drivers/ide/cs5520.c
@@ -94,7 +94,7 @@ static const struct ide_port_ops cs5520_port_ops = {
 	.set_dma_mode		= cs5520_set_dma_mode,
 };
 
-static const struct ide_port_info cyrix_chipset __devinitdata = {
+static const struct ide_port_info cyrix_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.enablebits	= { { 0x60, 0x01, 0x01 }, { 0x60, 0x02, 0x02 } },
 	.port_ops	= &cs5520_port_ops,
diff --git a/drivers/ide/cs5530.c b/drivers/ide/cs5530.c
index 4dc4eb92b076..49b40ad59d1a 100644
--- a/drivers/ide/cs5530.c
+++ b/drivers/ide/cs5530.c
@@ -245,7 +245,7 @@ static const struct ide_port_ops cs5530_port_ops = {
 	.udma_filter		= cs5530_udma_filter,
 };
 
-static const struct ide_port_info cs5530_chipset __devinitdata = {
+static const struct ide_port_info cs5530_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.init_chipset	= init_chipset_cs5530,
 	.init_hwif	= init_hwif_cs5530,
diff --git a/drivers/ide/cs5535.c b/drivers/ide/cs5535.c
index 5059fafadf29..18d4c852602b 100644
--- a/drivers/ide/cs5535.c
+++ b/drivers/ide/cs5535.c
@@ -170,7 +170,7 @@ static const struct ide_port_ops cs5535_port_ops = {
 	.cable_detect		= cs5535_cable_detect,
 };
 
-static const struct ide_port_info cs5535_chipset __devinitdata = {
+static const struct ide_port_info cs5535_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.port_ops	= &cs5535_port_ops,
 	.host_flags	= IDE_HFLAG_SINGLE | IDE_HFLAG_POST_SET_MODE,
diff --git a/drivers/ide/cy82c693.c b/drivers/ide/cy82c693.c
index 847553fd8b96..3ffb49dab574 100644
--- a/drivers/ide/cy82c693.c
+++ b/drivers/ide/cy82c693.c
@@ -163,7 +163,7 @@ static const struct ide_port_ops cy82c693_port_ops = {
 	.set_dma_mode		= cy82c693_set_dma_mode,
 };
 
-static const struct ide_port_info cy82c693_chipset __devinitdata = {
+static const struct ide_port_info cy82c693_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.init_iops	= init_iops_cy82c693,
 	.port_ops	= &cy82c693_port_ops,
diff --git a/drivers/ide/dtc2278.c b/drivers/ide/dtc2278.c
index 46af4743b3e6..8722df329cbe 100644
--- a/drivers/ide/dtc2278.c
+++ b/drivers/ide/dtc2278.c
@@ -91,7 +91,7 @@ static const struct ide_port_ops dtc2278_port_ops = {
 	.set_pio_mode		= dtc2278_set_pio_mode,
 };
 
-static const struct ide_port_info dtc2278_port_info __initdata = {
+static const struct ide_port_info dtc2278_port_info __initconst = {
 	.name			= DRV_NAME,
 	.chipset		= ide_dtc2278,
 	.port_ops		= &dtc2278_port_ops,
diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c
index 58c51cddc100..4aec3b87ff91 100644
--- a/drivers/ide/hpt366.c
+++ b/drivers/ide/hpt366.c
@@ -443,7 +443,7 @@ static struct hpt_timings hpt37x_timings = {
 	}
 };
 
-static const struct hpt_info hpt36x __devinitdata = {
+static const struct hpt_info hpt36x __devinitconst = {
 	.chip_name	= "HPT36x",
 	.chip_type	= HPT36x,
 	.udma_mask	= HPT366_ALLOW_ATA66_3 ? (HPT366_ALLOW_ATA66_4 ? ATA_UDMA4 : ATA_UDMA3) : ATA_UDMA2,
@@ -451,7 +451,7 @@ static const struct hpt_info hpt36x __devinitdata = {
 	.timings	= &hpt36x_timings
 };
 
-static const struct hpt_info hpt370 __devinitdata = {
+static const struct hpt_info hpt370 __devinitconst = {
 	.chip_name	= "HPT370",
 	.chip_type	= HPT370,
 	.udma_mask	= HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4,
@@ -459,7 +459,7 @@ static const struct hpt_info hpt370 __devinitdata = {
 	.timings	= &hpt37x_timings
 };
 
-static const struct hpt_info hpt370a __devinitdata = {
+static const struct hpt_info hpt370a __devinitconst = {
 	.chip_name	= "HPT370A",
 	.chip_type	= HPT370A,
 	.udma_mask	= HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4,
@@ -467,7 +467,7 @@ static const struct hpt_info hpt370a __devinitdata = {
 	.timings	= &hpt37x_timings
 };
 
-static const struct hpt_info hpt374 __devinitdata = {
+static const struct hpt_info hpt374 __devinitconst = {
 	.chip_name	= "HPT374",
 	.chip_type	= HPT374,
 	.udma_mask	= ATA_UDMA5,
@@ -475,7 +475,7 @@ static const struct hpt_info hpt374 __devinitdata = {
 	.timings	= &hpt37x_timings
 };
 
-static const struct hpt_info hpt372 __devinitdata = {
+static const struct hpt_info hpt372 __devinitconst = {
 	.chip_name	= "HPT372",
 	.chip_type	= HPT372,
 	.udma_mask	= HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
@@ -483,7 +483,7 @@ static const struct hpt_info hpt372 __devinitdata = {
 	.timings	= &hpt37x_timings
 };
 
-static const struct hpt_info hpt372a __devinitdata = {
+static const struct hpt_info hpt372a __devinitconst = {
 	.chip_name	= "HPT372A",
 	.chip_type	= HPT372A,
 	.udma_mask	= HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
@@ -491,7 +491,7 @@ static const struct hpt_info hpt372a __devinitdata = {
 	.timings	= &hpt37x_timings
 };
 
-static const struct hpt_info hpt302 __devinitdata = {
+static const struct hpt_info hpt302 __devinitconst = {
 	.chip_name	= "HPT302",
 	.chip_type	= HPT302,
 	.udma_mask	= HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
@@ -499,7 +499,7 @@ static const struct hpt_info hpt302 __devinitdata = {
 	.timings	= &hpt37x_timings
 };
 
-static const struct hpt_info hpt371 __devinitdata = {
+static const struct hpt_info hpt371 __devinitconst = {
 	.chip_name	= "HPT371",
 	.chip_type	= HPT371,
 	.udma_mask	= HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
@@ -507,7 +507,7 @@ static const struct hpt_info hpt371 __devinitdata = {
 	.timings	= &hpt37x_timings
 };
 
-static const struct hpt_info hpt372n __devinitdata = {
+static const struct hpt_info hpt372n __devinitconst = {
 	.chip_name	= "HPT372N",
 	.chip_type	= HPT372N,
 	.udma_mask	= HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
@@ -515,7 +515,7 @@ static const struct hpt_info hpt372n __devinitdata = {
 	.timings	= &hpt37x_timings
 };
 
-static const struct hpt_info hpt302n __devinitdata = {
+static const struct hpt_info hpt302n __devinitconst = {
 	.chip_name	= "HPT302N",
 	.chip_type	= HPT302N,
 	.udma_mask	= HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
@@ -523,7 +523,7 @@ static const struct hpt_info hpt302n __devinitdata = {
 	.timings	= &hpt37x_timings
 };
 
-static const struct hpt_info hpt371n __devinitdata = {
+static const struct hpt_info hpt371n __devinitconst = {
 	.chip_name	= "HPT371N",
 	.chip_type	= HPT371N,
 	.udma_mask	= HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5,
@@ -1361,7 +1361,7 @@ static const struct ide_dma_ops hpt36x_dma_ops = {
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
 
-static const struct ide_port_info hpt366_chipsets[] __devinitdata = {
+static const struct ide_port_info hpt366_chipsets[] __devinitconst = {
 	{	/* 0: HPT36x */
 		.name		= DRV_NAME,
 		.init_chipset	= init_chipset_hpt366,
diff --git a/drivers/ide/ht6560b.c b/drivers/ide/ht6560b.c
index 986f2513eab4..1e0fd3aa962d 100644
--- a/drivers/ide/ht6560b.c
+++ b/drivers/ide/ht6560b.c
@@ -341,7 +341,7 @@ static const struct ide_port_ops ht6560b_port_ops = {
 	.set_pio_mode		= ht6560b_set_pio_mode,
 };
 
-static const struct ide_port_info ht6560b_port_info __initdata = {
+static const struct ide_port_info ht6560b_port_info __initconst = {
 	.name			= DRV_NAME,
 	.chipset		= ide_ht6560b,
 	.tp_ops 		= &ht6560b_tp_ops,
diff --git a/drivers/ide/icside.c b/drivers/ide/icside.c
index bcb507b0cfd4..e640d0ac3af6 100644
--- a/drivers/ide/icside.c
+++ b/drivers/ide/icside.c
@@ -451,7 +451,7 @@ err_free:
 	return ret;
 }
 
-static const struct ide_port_info icside_v6_port_info __initdata = {
+static const struct ide_port_info icside_v6_port_info __initconst = {
 	.init_dma		= icside_dma_off_init,
 	.port_ops		= &icside_v6_no_dma_port_ops,
 	.host_flags		= IDE_HFLAG_SERIALIZE | IDE_HFLAG_MMIO,
diff --git a/drivers/ide/ide-pci-generic.c b/drivers/ide/ide-pci-generic.c
index 7f56b738d762..dab5b670bfbf 100644
--- a/drivers/ide/ide-pci-generic.c
+++ b/drivers/ide/ide-pci-generic.c
@@ -53,7 +53,7 @@ static const struct ide_port_ops netcell_port_ops = {
 		.udma_mask	= ATA_UDMA6, \
 	}
 
-static const struct ide_port_info generic_chipsets[] __devinitdata = {
+static const struct ide_port_info generic_chipsets[] __devinitconst = {
 	/*  0: Unknown */
 	DECLARE_GENERIC_PCI_DEV(0),
 
diff --git a/drivers/ide/it8172.c b/drivers/ide/it8172.c
index 560e66d07659..d5dd180c4b85 100644
--- a/drivers/ide/it8172.c
+++ b/drivers/ide/it8172.c
@@ -115,7 +115,7 @@ static const struct ide_port_ops it8172_port_ops = {
 	.set_dma_mode	= it8172_set_dma_mode,
 };
 
-static const struct ide_port_info it8172_port_info __devinitdata = {
+static const struct ide_port_info it8172_port_info __devinitconst = {
 	.name		= DRV_NAME,
 	.port_ops	= &it8172_port_ops,
 	.enablebits	= { {0x41, 0x80, 0x80}, {0x00, 0x00, 0x00} },
diff --git a/drivers/ide/it8213.c b/drivers/ide/it8213.c
index 46816ba26416..1847aeb5450a 100644
--- a/drivers/ide/it8213.c
+++ b/drivers/ide/it8213.c
@@ -156,7 +156,7 @@ static const struct ide_port_ops it8213_port_ops = {
 	.cable_detect		= it8213_cable_detect,
 };
 
-static const struct ide_port_info it8213_chipset __devinitdata = {
+static const struct ide_port_info it8213_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.enablebits	= { {0x41, 0x80, 0x80} },
 	.port_ops	= &it8213_port_ops,
diff --git a/drivers/ide/it821x.c b/drivers/ide/it821x.c
index 2e3169f2acda..c5611dbca342 100644
--- a/drivers/ide/it821x.c
+++ b/drivers/ide/it821x.c
@@ -630,7 +630,7 @@ static const struct ide_port_ops it821x_port_ops = {
 	.cable_detect		= it821x_cable_detect,
 };
 
-static const struct ide_port_info it821x_chipset __devinitdata = {
+static const struct ide_port_info it821x_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.init_chipset	= init_chipset_it821x,
 	.init_hwif	= init_hwif_it821x,
diff --git a/drivers/ide/jmicron.c b/drivers/ide/jmicron.c
index 74c2c4a6d909..efddd7d9f92d 100644
--- a/drivers/ide/jmicron.c
+++ b/drivers/ide/jmicron.c
@@ -102,7 +102,7 @@ static const struct ide_port_ops jmicron_port_ops = {
 	.cable_detect		= jmicron_cable_detect,
 };
 
-static const struct ide_port_info jmicron_chipset __devinitdata = {
+static const struct ide_port_info jmicron_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.enablebits	= { { 0x40, 0x01, 0x01 }, { 0x40, 0x10, 0x10 } },
 	.port_ops	= &jmicron_port_ops,
diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c
index 95327a2c2422..73f78d872d55 100644
--- a/drivers/ide/ns87415.c
+++ b/drivers/ide/ns87415.c
@@ -293,7 +293,7 @@ static const struct ide_dma_ops ns87415_dma_ops = {
 	.dma_sff_read_status	= superio_dma_sff_read_status,
 };
 
-static const struct ide_port_info ns87415_chipset __devinitdata = {
+static const struct ide_port_info ns87415_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.init_hwif	= init_hwif_ns87415,
 	.tp_ops 	= &ns87415_tp_ops,
diff --git a/drivers/ide/opti621.c b/drivers/ide/opti621.c
index 1a53a4c375ed..39edc66cb96c 100644
--- a/drivers/ide/opti621.c
+++ b/drivers/ide/opti621.c
@@ -131,7 +131,7 @@ static const struct ide_port_ops opti621_port_ops = {
 	.set_pio_mode		= opti621_set_pio_mode,
 };
 
-static const struct ide_port_info opti621_chipset __devinitdata = {
+static const struct ide_port_info opti621_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.enablebits	= { {0x45, 0x80, 0x00}, {0x40, 0x08, 0x00} },
 	.port_ops	= &opti621_port_ops,
diff --git a/drivers/ide/pdc202xx_new.c b/drivers/ide/pdc202xx_new.c
index 9546fe2a93f7..2e5ceb62fb3b 100644
--- a/drivers/ide/pdc202xx_new.c
+++ b/drivers/ide/pdc202xx_new.c
@@ -465,7 +465,7 @@ static const struct ide_port_ops pdcnew_port_ops = {
 		.udma_mask	= udma, \
 	}
 
-static const struct ide_port_info pdcnew_chipsets[] __devinitdata = {
+static const struct ide_port_info pdcnew_chipsets[] __devinitconst = {
 	/* 0: PDC202{68,70} */		DECLARE_PDCNEW_DEV(ATA_UDMA5),
 	/* 1: PDC202{69,71,75,76,77} */	DECLARE_PDCNEW_DEV(ATA_UDMA6),
 };
diff --git a/drivers/ide/pdc202xx_old.c b/drivers/ide/pdc202xx_old.c
index 3a35ec6193d2..563451096812 100644
--- a/drivers/ide/pdc202xx_old.c
+++ b/drivers/ide/pdc202xx_old.c
@@ -270,7 +270,7 @@ static const struct ide_dma_ops pdc2026x_dma_ops = {
 		.max_sectors	= sectors, \
 	}
 
-static const struct ide_port_info pdc202xx_chipsets[] __devinitdata = {
+static const struct ide_port_info pdc202xx_chipsets[] __devinitconst = {
 	{	/* 0: PDC20246 */
 		.name		= DRV_NAME,
 		.init_chipset	= init_chipset_pdc202xx,
diff --git a/drivers/ide/piix.c b/drivers/ide/piix.c
index 1892e81fb00f..fe0fd60cfc09 100644
--- a/drivers/ide/piix.c
+++ b/drivers/ide/piix.c
@@ -344,7 +344,7 @@ static const struct ide_port_ops ich_port_ops = {
 		.udma_mask	= udma, \
 	}
 
-static const struct ide_port_info piix_pci_info[] __devinitdata = {
+static const struct ide_port_info piix_pci_info[] __devinitconst = {
 	/* 0: MPIIX */
 	{	/*
 		 * MPIIX actually has only a single IDE channel mapped to
diff --git a/drivers/ide/qd65xx.c b/drivers/ide/qd65xx.c
index e03f4f19c1d6..a6fb6a894c7b 100644
--- a/drivers/ide/qd65xx.c
+++ b/drivers/ide/qd65xx.c
@@ -335,7 +335,7 @@ static const struct ide_port_ops qd6580_port_ops = {
 	.set_pio_mode		= qd6580_set_pio_mode,
 };
 
-static const struct ide_port_info qd65xx_port_info __initdata = {
+static const struct ide_port_info qd65xx_port_info __initconst = {
 	.name			= DRV_NAME,
 	.tp_ops 		= &qd65xx_tp_ops,
 	.chipset		= ide_qd65xx,
diff --git a/drivers/ide/rz1000.c b/drivers/ide/rz1000.c
index a6414a884eb1..c04173e9fc38 100644
--- a/drivers/ide/rz1000.c
+++ b/drivers/ide/rz1000.c
@@ -38,7 +38,7 @@ static int __devinit rz1000_disable_readahead(struct pci_dev *dev)
 	}
 }
 
-static const struct ide_port_info rz1000_chipset __devinitdata = {
+static const struct ide_port_info rz1000_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.host_flags	= IDE_HFLAG_NO_DMA,
 };
diff --git a/drivers/ide/sc1200.c b/drivers/ide/sc1200.c
index 356b9b504ffd..d4758ebe77da 100644
--- a/drivers/ide/sc1200.c
+++ b/drivers/ide/sc1200.c
@@ -291,7 +291,7 @@ static const struct ide_dma_ops sc1200_dma_ops = {
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
 
-static const struct ide_port_info sc1200_chipset __devinitdata = {
+static const struct ide_port_info sc1200_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.port_ops	= &sc1200_port_ops,
 	.dma_ops	= &sc1200_dma_ops,
diff --git a/drivers/ide/scc_pata.c b/drivers/ide/scc_pata.c
index b7f5b0c4310c..970103810021 100644
--- a/drivers/ide/scc_pata.c
+++ b/drivers/ide/scc_pata.c
@@ -811,7 +811,7 @@ static const struct ide_dma_ops scc_dma_ops = {
 	.dma_sff_read_status	= scc_dma_sff_read_status,
 };
 
-static const struct ide_port_info scc_chipset __devinitdata = {
+static const struct ide_port_info scc_chipset __devinitconst = {
 	.name		= "sccIDE",
 	.init_iops	= init_iops_scc,
 	.init_dma	= scc_init_dma,
diff --git a/drivers/ide/serverworks.c b/drivers/ide/serverworks.c
index 35fb8dabb55d..24d72ef23df7 100644
--- a/drivers/ide/serverworks.c
+++ b/drivers/ide/serverworks.c
@@ -337,7 +337,7 @@ static const struct ide_port_ops svwks_port_ops = {
 	.cable_detect		= svwks_cable_detect,
 };
 
-static const struct ide_port_info serverworks_chipsets[] __devinitdata = {
+static const struct ide_port_info serverworks_chipsets[] __devinitconst = {
 	{	/* 0: OSB4 */
 		.name		= DRV_NAME,
 		.init_chipset	= init_chipset_svwks,
diff --git a/drivers/ide/siimage.c b/drivers/ide/siimage.c
index ddeda444a27a..46f7e30d3790 100644
--- a/drivers/ide/siimage.c
+++ b/drivers/ide/siimage.c
@@ -719,7 +719,7 @@ static const struct ide_dma_ops sil_dma_ops = {
 		.udma_mask	= ATA_UDMA6,		\
 	}
 
-static const struct ide_port_info siimage_chipsets[] __devinitdata = {
+static const struct ide_port_info siimage_chipsets[] __devinitconst = {
 	/* 0: SiI680 */  DECLARE_SII_DEV(&sil_pata_port_ops),
 	/* 1: SiI3112 */ DECLARE_SII_DEV(&sil_sata_port_ops)
 };
diff --git a/drivers/ide/sis5513.c b/drivers/ide/sis5513.c
index 4a0022567758..09e61b4c5e94 100644
--- a/drivers/ide/sis5513.c
+++ b/drivers/ide/sis5513.c
@@ -563,7 +563,7 @@ static const struct ide_port_ops sis_ata133_port_ops = {
 	.cable_detect		= sis_cable_detect,
 };
 
-static const struct ide_port_info sis5513_chipset __devinitdata = {
+static const struct ide_port_info sis5513_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.init_chipset	= init_chipset_sis5513,
 	.enablebits	= { {0x4a, 0x02, 0x02}, {0x4a, 0x04, 0x04} },
diff --git a/drivers/ide/sl82c105.c b/drivers/ide/sl82c105.c
index f21dc2ad7682..d051cd224bdb 100644
--- a/drivers/ide/sl82c105.c
+++ b/drivers/ide/sl82c105.c
@@ -299,7 +299,7 @@ static const struct ide_dma_ops sl82c105_dma_ops = {
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
 
-static const struct ide_port_info sl82c105_chipset __devinitdata = {
+static const struct ide_port_info sl82c105_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.init_chipset	= init_chipset_sl82c105,
 	.enablebits	= {{0x40,0x01,0x01}, {0x40,0x10,0x10}},
diff --git a/drivers/ide/slc90e66.c b/drivers/ide/slc90e66.c
index 864ffe0e26d9..863a5e9283ca 100644
--- a/drivers/ide/slc90e66.c
+++ b/drivers/ide/slc90e66.c
@@ -132,7 +132,7 @@ static const struct ide_port_ops slc90e66_port_ops = {
 	.cable_detect		= slc90e66_cable_detect,
 };
 
-static const struct ide_port_info slc90e66_chipset __devinitdata = {
+static const struct ide_port_info slc90e66_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.enablebits	= { {0x41, 0x80, 0x80}, {0x43, 0x80, 0x80} },
 	.port_ops	= &slc90e66_port_ops,
diff --git a/drivers/ide/tc86c001.c b/drivers/ide/tc86c001.c
index 4799d5c384e7..17946785ebf6 100644
--- a/drivers/ide/tc86c001.c
+++ b/drivers/ide/tc86c001.c
@@ -192,7 +192,7 @@ static const struct ide_dma_ops tc86c001_dma_ops = {
 	.dma_sff_read_status	= ide_dma_sff_read_status,
 };
 
-static const struct ide_port_info tc86c001_chipset __devinitdata = {
+static const struct ide_port_info tc86c001_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.init_hwif	= init_hwif_tc86c001,
 	.port_ops	= &tc86c001_port_ops,
diff --git a/drivers/ide/triflex.c b/drivers/ide/triflex.c
index 281c91426345..55ce1b80efcb 100644
--- a/drivers/ide/triflex.c
+++ b/drivers/ide/triflex.c
@@ -92,7 +92,7 @@ static const struct ide_port_ops triflex_port_ops = {
 	.set_dma_mode		= triflex_set_mode,
 };
 
-static const struct ide_port_info triflex_device __devinitdata = {
+static const struct ide_port_info triflex_device __devinitconst = {
 	.name		= DRV_NAME,
 	.enablebits	= {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}},
 	.port_ops	= &triflex_port_ops,
diff --git a/drivers/ide/trm290.c b/drivers/ide/trm290.c
index 4b42ca091534..e494a98a43a9 100644
--- a/drivers/ide/trm290.c
+++ b/drivers/ide/trm290.c
@@ -324,7 +324,7 @@ static struct ide_dma_ops trm290_dma_ops = {
 	.dma_check		= trm290_dma_check,
 };
 
-static const struct ide_port_info trm290_chipset __devinitdata = {
+static const struct ide_port_info trm290_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.init_hwif	= init_hwif_trm290,
 	.tp_ops 	= &trm290_tp_ops,
diff --git a/drivers/ide/tx4938ide.c b/drivers/ide/tx4938ide.c
index 7002765b593c..91d49dd957ef 100644
--- a/drivers/ide/tx4938ide.c
+++ b/drivers/ide/tx4938ide.c
@@ -117,7 +117,7 @@ static const struct ide_port_ops tx4938ide_port_ops = {
 	.set_pio_mode		= tx4938ide_set_pio_mode,
 };
 
-static const struct ide_port_info tx4938ide_port_info __initdata = {
+static const struct ide_port_info tx4938ide_port_info __initconst = {
 	.port_ops		= &tx4938ide_port_ops,
 #ifdef __BIG_ENDIAN
 	.tp_ops			= &tx4938ide_tp_ops,
diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c
index 71c231954972..c0ab800b7bb3 100644
--- a/drivers/ide/tx4939ide.c
+++ b/drivers/ide/tx4939ide.c
@@ -522,7 +522,7 @@ static const struct ide_dma_ops tx4939ide_dma_ops = {
 	.dma_sff_read_status	= tx4939ide_dma_sff_read_status,
 };
 
-static const struct ide_port_info tx4939ide_port_info __initdata = {
+static const struct ide_port_info tx4939ide_port_info __initconst = {
 	.init_hwif		= tx4939ide_init_hwif,
 	.init_dma		= tx4939ide_init_dma,
 	.port_ops		= &tx4939ide_port_ops,
diff --git a/drivers/ide/umc8672.c b/drivers/ide/umc8672.c
index 5cfb78120669..3aa0fea0f3d9 100644
--- a/drivers/ide/umc8672.c
+++ b/drivers/ide/umc8672.c
@@ -128,7 +128,7 @@ static const struct ide_port_ops umc8672_port_ops = {
 	.set_pio_mode		= umc_set_pio_mode,
 };
 
-static const struct ide_port_info umc8672_port_info __initdata = {
+static const struct ide_port_info umc8672_port_info __initconst = {
 	.name			= DRV_NAME,
 	.chipset		= ide_umc8672,
 	.port_ops		= &umc8672_port_ops,
diff --git a/drivers/ide/via82cxxx.c b/drivers/ide/via82cxxx.c
index f46f49cfcc28..eb7767864d10 100644
--- a/drivers/ide/via82cxxx.c
+++ b/drivers/ide/via82cxxx.c
@@ -403,7 +403,7 @@ static const struct ide_port_ops via_port_ops = {
 	.cable_detect		= via82cxxx_cable_detect,
 };
 
-static const struct ide_port_info via82cxxx_chipset __devinitdata = {
+static const struct ide_port_info via82cxxx_chipset __devinitconst = {
 	.name		= DRV_NAME,
 	.init_chipset	= init_chipset_via82cxxx,
 	.enablebits	= { { 0x40, 0x02, 0x02 }, { 0x40, 0x01, 0x01 } },
diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index d67999f6e34a..394fea2ba1bc 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -390,7 +390,7 @@ static int cm_alloc_id(struct cm_id_private *cm_id_priv)
 		ret = idr_get_new_above(&cm.local_id_table, cm_id_priv,
 					next_id, &id);
 		if (!ret)
-			next_id = ((unsigned) id + 1) & MAX_ID_MASK;
+			next_id = ((unsigned) id + 1) & MAX_IDR_MASK;
 		spin_unlock_irqrestore(&cm.lock, flags);
 	} while( (ret == -EAGAIN) && idr_pre_get(&cm.local_id_table, GFP_KERNEL) );
 
diff --git a/drivers/infiniband/hw/mlx4/cm.c b/drivers/infiniband/hw/mlx4/cm.c
index e25e4dafb8a8..80079e5a2e30 100644
--- a/drivers/infiniband/hw/mlx4/cm.c
+++ b/drivers/infiniband/hw/mlx4/cm.c
@@ -225,7 +225,7 @@ id_map_alloc(struct ib_device *ibdev, int slave_id, u32 sl_cm_id)
 		ret = idr_get_new_above(&sriov->pv_id_table, ent,
 					next_id, &id);
 		if (!ret) {
-			next_id = ((unsigned) id + 1) & MAX_ID_MASK;
+			next_id = ((unsigned) id + 1) & MAX_IDR_MASK;
 			ent->pv_cm_id = (u32)id;
 			sl_id_map_add(ibdev, ent);
 		}
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index 20e5c2cda430..ef87310b7662 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -748,7 +748,7 @@ static void __devexit macio_pci_remove(struct pci_dev* pdev)
  * MacIO is matched against any Apple ID, it's probe() function
  * will then decide wether it applies or not
  */
-static const struct pci_device_id __devinitdata pci_ids [] = { {
+static const struct pci_device_id __devinitconst pci_ids[] = { {
 	.vendor		= PCI_VENDOR_ID_APPLE,
 	.device		= PCI_ANY_ID,
 	.subvendor	= PCI_ANY_ID,
diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index 3d6d9beb18d4..8fefc961ec06 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -374,21 +374,21 @@ static int wm8994_ldo_in_use(struct wm8994_pdata *pdata, int ldo)
 }
 #endif
 
-static const __devinitdata struct reg_default wm8994_revc_patch[] = {
+static const __devinitconst struct reg_default wm8994_revc_patch[] = {
 	{ 0x102, 0x3 },
 	{ 0x56, 0x3 },
 	{ 0x817, 0x0 },
 	{ 0x102, 0x0 },
 };
 
-static const __devinitdata struct reg_default wm8958_reva_patch[] = {
+static const __devinitconst struct reg_default wm8958_reva_patch[] = {
 	{ 0x102, 0x3 },
 	{ 0xcb, 0x81 },
 	{ 0x817, 0x0 },
 	{ 0x102, 0x0 },
 };
 
-static const __devinitdata struct reg_default wm1811_reva_patch[] = {
+static const __devinitconst struct reg_default wm1811_reva_patch[] = {
 	{ 0x102, 0x3 },
 	{ 0x56, 0xc07 },
 	{ 0x5d, 0x7e },
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 504da715a41a..9722d43d6140 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -653,7 +653,7 @@ static const struct sdhci_pci_fixes sdhci_via = {
 	.probe		= via_probe,
 };
 
-static const struct pci_device_id pci_ids[] __devinitdata = {
+static const struct pci_device_id pci_ids[] __devinitconst = {
 	{
 		.vendor		= PCI_VENDOR_ID_RICOH,
 		.device		= PCI_DEVICE_ID_RICOH_R5C822,
diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c
index 034c16b60e96..adc3708d8829 100644
--- a/drivers/net/can/slcan.c
+++ b/drivers/net/can/slcan.c
@@ -56,7 +56,7 @@
 #include <linux/kernel.h>
 #include <linux/can.h>
 
-static __initdata const char banner[] =
+static __initconst const char banner[] =
 	KERN_INFO "slcan: serial line CAN interface driver\n";
 
 MODULE_ALIAS_LDISC(N_SLCAN);
diff --git a/drivers/net/can/vcan.c b/drivers/net/can/vcan.c
index 4f93c0be0053..0a2a5ee79a17 100644
--- a/drivers/net/can/vcan.c
+++ b/drivers/net/can/vcan.c
@@ -49,7 +49,7 @@
 #include <linux/slab.h>
 #include <net/rtnetlink.h>
 
-static __initdata const char banner[] =
+static __initconst const char banner[] =
 	KERN_INFO "vcan: Virtual CAN interface driver\n";
 
 MODULE_DESCRIPTION("virtual CAN interface");
diff --git a/drivers/net/ethernet/8390/ne3210.c b/drivers/net/ethernet/8390/ne3210.c
index a2f8b2b8e27c..e3f57427d5c5 100644
--- a/drivers/net/ethernet/8390/ne3210.c
+++ b/drivers/net/ethernet/8390/ne3210.c
@@ -81,7 +81,7 @@ static void ne3210_block_output(struct net_device *dev, int count, const unsigne
 
 static unsigned char irq_map[] __initdata = {15, 12, 11, 10, 9, 7, 5, 3};
 static unsigned int shmem_map[] __initdata = {0xff0, 0xfe0, 0xfff0, 0xd8, 0xffe0, 0xffc0, 0xd0, 0x0};
-static const char *ifmap[] __initdata = {"UTP", "?", "BNC", "AUI"};
+static const char * const ifmap[] __initconst = {"UTP", "?", "BNC", "AUI"};
 static int ifmap_val[] __initdata = {
 		IF_PORT_10BASET,
 		IF_PORT_UNKNOWN,
diff --git a/drivers/net/ethernet/adaptec/starfire.c b/drivers/net/ethernet/adaptec/starfire.c
index d920a529ba22..5b65992c2a0a 100644
--- a/drivers/net/ethernet/adaptec/starfire.c
+++ b/drivers/net/ethernet/adaptec/starfire.c
@@ -295,7 +295,7 @@ MODULE_DEVICE_TABLE(pci, starfire_pci_tbl);
 static const struct chip_info {
 	const char *name;
 	int drv_flags;
-} netdrv_tbl[] __devinitdata = {
+} netdrv_tbl[] __devinitconst = {
 	{ "Adaptec Starfire 6915", CanHaveMII },
 };
 
diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
index 55a2e3795055..d19f82f7597a 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c
@@ -702,7 +702,7 @@ struct atl1c_platform_patch {
 	u32 patch_flag;
 #define ATL1C_LINK_PATCH	0x1
 };
-static const struct atl1c_platform_patch plats[] __devinitdata = {
+static const struct atl1c_platform_patch plats[] __devinitconst = {
 {0x2060, 0xC1, 0x1019, 0x8152, 0x1},
 {0x2060, 0xC1, 0x1019, 0x2060, 0x1},
 {0x2060, 0xC1, 0x1019, 0xE000, 0x1},
diff --git a/drivers/net/ethernet/atheros/atlx/atl2.c b/drivers/net/ethernet/atheros/atlx/atl2.c
index 57d64b80fd72..623dd8635c46 100644
--- a/drivers/net/ethernet/atheros/atlx/atl2.c
+++ b/drivers/net/ethernet/atheros/atlx/atl2.c
@@ -2845,7 +2845,7 @@ static void atl2_force_ps(struct atl2_hw *hw)
  */
 
 #define ATL2_PARAM(X, desc) \
-    static const int __devinitdata X[ATL2_MAX_NIC + 1] = ATL2_PARAM_INIT; \
+    static const int __devinitconst X[ATL2_MAX_NIC + 1] = ATL2_PARAM_INIT; \
     MODULE_PARM(X, "1-" __MODULE_STRING(ATL2_MAX_NIC) "i"); \
     MODULE_PARM_DESC(X, desc);
 #else
diff --git a/drivers/net/ethernet/dec/tulip/de2104x.c b/drivers/net/ethernet/dec/tulip/de2104x.c
index 61cc09342865..77335853ac36 100644
--- a/drivers/net/ethernet/dec/tulip/de2104x.c
+++ b/drivers/net/ethernet/dec/tulip/de2104x.c
@@ -661,9 +661,6 @@ static netdev_tx_t de_start_xmit (struct sk_buff *skb,
    new frame, not around filling de->setup_frame.  This is non-deterministic
    when re-entered but still correct. */
 
-#undef set_bit_le
-#define set_bit_le(i,p) do { ((char *)(p))[(i)/8] |= (1<<((i)%8)); } while(0)
-
 static void build_setup_frame_hash(u16 *setup_frm, struct net_device *dev)
 {
 	struct de_private *de = netdev_priv(dev);
@@ -673,12 +670,12 @@ static void build_setup_frame_hash(u16 *setup_frm, struct net_device *dev)
 	u16 *eaddrs;
 
 	memset(hash_table, 0, sizeof(hash_table));
-	set_bit_le(255, hash_table); 			/* Broadcast entry */
+	__set_bit_le(255, hash_table);			/* Broadcast entry */
 	/* This should work on big-endian machines as well. */
 	netdev_for_each_mc_addr(ha, dev) {
 		int index = ether_crc_le(ETH_ALEN, ha->addr) & 0x1ff;
 
-		set_bit_le(index, hash_table);
+		__set_bit_le(index, hash_table);
 	}
 
 	for (i = 0; i < 32; i++) {
diff --git a/drivers/net/ethernet/dec/tulip/eeprom.c b/drivers/net/ethernet/dec/tulip/eeprom.c
index ed7d1dcd9566..44f7e8e82d85 100644
--- a/drivers/net/ethernet/dec/tulip/eeprom.c
+++ b/drivers/net/ethernet/dec/tulip/eeprom.c
@@ -79,7 +79,7 @@ static struct eeprom_fixup eeprom_fixups[] __devinitdata = {
   {NULL}};
 
 
-static const char *block_name[] __devinitdata = {
+static const char *const block_name[] __devinitconst = {
 	"21140 non-MII",
 	"21140 MII PHY",
 	"21142 Serial PHY",
diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c
index c4f37aca2269..885700a19978 100644
--- a/drivers/net/ethernet/dec/tulip/tulip_core.c
+++ b/drivers/net/ethernet/dec/tulip/tulip_core.c
@@ -1010,9 +1010,6 @@ static int private_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
    new frame, not around filling tp->setup_frame.  This is non-deterministic
    when re-entered but still correct. */
 
-#undef set_bit_le
-#define set_bit_le(i,p) do { ((char *)(p))[(i)/8] |= (1<<((i)%8)); } while(0)
-
 static void build_setup_frame_hash(u16 *setup_frm, struct net_device *dev)
 {
 	struct tulip_private *tp = netdev_priv(dev);
@@ -1022,12 +1019,12 @@ static void build_setup_frame_hash(u16 *setup_frm, struct net_device *dev)
 	u16 *eaddrs;
 
 	memset(hash_table, 0, sizeof(hash_table));
-	set_bit_le(255, hash_table); 			/* Broadcast entry */
+	__set_bit_le(255, hash_table);			/* Broadcast entry */
 	/* This should work on big-endian machines as well. */
 	netdev_for_each_mc_addr(ha, dev) {
 		int index = ether_crc_le(ETH_ALEN, ha->addr) & 0x1ff;
 
-		set_bit_le(index, hash_table);
+		__set_bit_le(index, hash_table);
 	}
 	for (i = 0; i < 32; i++) {
 		*setup_frm++ = hash_table[i];
diff --git a/drivers/net/ethernet/dec/tulip/winbond-840.c b/drivers/net/ethernet/dec/tulip/winbond-840.c
index 4d1ffca83c82..7c1ec4d7920b 100644
--- a/drivers/net/ethernet/dec/tulip/winbond-840.c
+++ b/drivers/net/ethernet/dec/tulip/winbond-840.c
@@ -236,7 +236,7 @@ struct pci_id_info {
         int drv_flags;		/* Driver use, intended as capability flags. */
 };
 
-static const struct pci_id_info pci_id_tbl[] __devinitdata = {
+static const struct pci_id_info pci_id_tbl[] __devinitconst = {
 	{ 				/* Sometime a Level-One switch card. */
 	  "Winbond W89c840",	CanHaveMII | HasBrokenTx | FDXOnNoMII},
 	{ "Winbond W89c840",	CanHaveMII | HasBrokenTx},
diff --git a/drivers/net/ethernet/dlink/sundance.c b/drivers/net/ethernet/dlink/sundance.c
index d7bb52a7bda1..3b83588e51f6 100644
--- a/drivers/net/ethernet/dlink/sundance.c
+++ b/drivers/net/ethernet/dlink/sundance.c
@@ -218,7 +218,7 @@ enum {
 struct pci_id_info {
         const char *name;
 };
-static const struct pci_id_info pci_id_tbl[] __devinitdata = {
+static const struct pci_id_info pci_id_tbl[] __devinitconst = {
 	{"D-Link DFE-550TX FAST Ethernet Adapter"},
 	{"D-Link DFE-550FX 100Mbps Fiber-optics Adapter"},
 	{"D-Link DFE-580TX 4 port Server Adapter"},
diff --git a/drivers/net/ethernet/fealnx.c b/drivers/net/ethernet/fealnx.c
index 9d71c9cc300b..0e4a0ac86aa8 100644
--- a/drivers/net/ethernet/fealnx.c
+++ b/drivers/net/ethernet/fealnx.c
@@ -150,7 +150,7 @@ struct chip_info {
 	int flags;
 };
 
-static const struct chip_info skel_netdrv_tbl[] __devinitdata = {
+static const struct chip_info skel_netdrv_tbl[] __devinitconst = {
  	{ "100/10M Ethernet PCI Adapter",	HAS_MII_XCVR },
 	{ "100/10M Ethernet PCI Adapter",	HAS_CHIP_XCVR },
 	{ "1000/100/10M Ethernet PCI Adapter",	HAS_MII_XCVR },
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
index b528e52a8ee1..2a0c9dc48eb3 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
@@ -38,7 +38,7 @@ static inline void writeq(u64 val, void __iomem *addr)
 }
 #endif
 
-static const struct crb_128M_2M_block_map
+static struct crb_128M_2M_block_map
 crb_128M_2M_map[64] __cacheline_aligned_in_smp = {
     {{{0, 0,         0,         0} } },		/* 0: PCI */
     {{{1, 0x0100000, 0x0102000, 0x120000},	/* 1: PCIE */
diff --git a/drivers/net/ethernet/realtek/8139too.c b/drivers/net/ethernet/realtek/8139too.c
index 1d83565cc6af..3ed7add23c12 100644
--- a/drivers/net/ethernet/realtek/8139too.c
+++ b/drivers/net/ethernet/realtek/8139too.c
@@ -228,7 +228,7 @@ typedef enum {
 static const struct {
 	const char *name;
 	u32 hw_flags;
-} board_info[] __devinitdata = {
+} board_info[] __devinitconst = {
 	{ "RealTek RTL8139", RTL8139_CAPS },
 	{ "RealTek RTL8129", RTL8129_CAPS },
 };
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 96bd980e828d..4f86d0cd516a 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -2019,14 +2019,14 @@ static void efx_set_rx_mode(struct net_device *net_dev)
 		netdev_for_each_mc_addr(ha, net_dev) {
 			crc = ether_crc_le(ETH_ALEN, ha->addr);
 			bit = crc & (EFX_MCAST_HASH_ENTRIES - 1);
-			set_bit_le(bit, mc_hash->byte);
+			__set_bit_le(bit, mc_hash);
 		}
 
 		/* Broadcast packets go through the multicast hash filter.
 		 * ether_crc_le() of the broadcast address is 0xbe2612ff
 		 * so we always add bit 0xff to the mask.
 		 */
-		set_bit_le(0xff, mc_hash->byte);
+		__set_bit_le(0xff, mc_hash);
 	}
 
 	if (efx->port_enabled)
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index c1a010cda89b..576a31091165 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -1101,18 +1101,6 @@ static inline struct efx_rx_buffer *efx_rx_buffer(struct efx_rx_queue *rx_queue,
 	return &rx_queue->buffer[index];
 }
 
-/* Set bit in a little-endian bitfield */
-static inline void set_bit_le(unsigned nr, unsigned char *addr)
-{
-	addr[nr / 8] |= (1 << (nr % 8));
-}
-
-/* Clear bit in a little-endian bitfield */
-static inline void clear_bit_le(unsigned nr, unsigned char *addr)
-{
-	addr[nr / 8] &= ~(1 << (nr % 8));
-}
-
 
 /**
  * EFX_MAX_FRAME_LEN - calculate maximum frame length
diff --git a/drivers/net/ethernet/sfc/nic.c b/drivers/net/ethernet/sfc/nic.c
index cdff40b65729..aab7cacb2e34 100644
--- a/drivers/net/ethernet/sfc/nic.c
+++ b/drivers/net/ethernet/sfc/nic.c
@@ -472,9 +472,9 @@ void efx_nic_init_tx(struct efx_tx_queue *tx_queue)
 
 		efx_reado(efx, &reg, FR_AA_TX_CHKSM_CFG);
 		if (tx_queue->queue & EFX_TXQ_TYPE_OFFLOAD)
-			clear_bit_le(tx_queue->queue, (void *)&reg);
+			__clear_bit_le(tx_queue->queue, &reg);
 		else
-			set_bit_le(tx_queue->queue, (void *)&reg);
+			__set_bit_le(tx_queue->queue, &reg);
 		efx_writeo(efx, &reg, FR_AA_TX_CHKSM_CFG);
 	}
 
diff --git a/drivers/net/ethernet/sis/sis190.c b/drivers/net/ethernet/sis/sis190.c
index 4613591b43e7..d8166012b7d4 100644
--- a/drivers/net/ethernet/sis/sis190.c
+++ b/drivers/net/ethernet/sis/sis190.c
@@ -1618,7 +1618,7 @@ static int __devinit sis190_get_mac_addr_from_eeprom(struct pci_dev *pdev,
 static int __devinit sis190_get_mac_addr_from_apc(struct pci_dev *pdev,
 						  struct net_device *dev)
 {
-	static const u16 __devinitdata ids[] = { 0x0965, 0x0966, 0x0968 };
+	static const u16 __devinitconst ids[] = { 0x0965, 0x0966, 0x0968 };
 	struct sis190_private *tp = netdev_priv(dev);
 	struct pci_dev *isa_bridge;
 	u8 reg, tmp8;
diff --git a/drivers/net/hamradio/6pack.c b/drivers/net/hamradio/6pack.c
index 64783a0d545a..1450e33fc250 100644
--- a/drivers/net/hamradio/6pack.c
+++ b/drivers/net/hamradio/6pack.c
@@ -811,9 +811,9 @@ static struct tty_ldisc_ops sp_ldisc = {
 
 /* Initialize 6pack control device -- register 6pack line discipline */
 
-static const char msg_banner[]  __initdata = KERN_INFO \
+static const char msg_banner[]  __initconst = KERN_INFO \
 	"AX.25: 6pack driver, " SIXPACK_VERSION "\n";
-static const char msg_regfail[] __initdata = KERN_ERR  \
+static const char msg_regfail[] __initconst = KERN_ERR  \
 	"6pack: can't register line discipline (err = %d)\n";
 
 static int __init sixpack_init_driver(void)
@@ -829,7 +829,7 @@ static int __init sixpack_init_driver(void)
 	return status;
 }
 
-static const char msg_unregfail[] __exitdata = KERN_ERR \
+static const char msg_unregfail[] = KERN_ERR \
 	"6pack: can't unregister line discipline (err = %d)\n";
 
 static void __exit sixpack_exit_driver(void)
diff --git a/drivers/net/hamradio/bpqether.c b/drivers/net/hamradio/bpqether.c
index 76d54774ba82..c2e5497397d5 100644
--- a/drivers/net/hamradio/bpqether.c
+++ b/drivers/net/hamradio/bpqether.c
@@ -87,7 +87,7 @@
 
 #include <linux/bpqether.h>
 
-static const char banner[] __initdata = KERN_INFO \
+static const char banner[] __initconst = KERN_INFO \
 	"AX.25: bpqether driver version 004\n";
 
 static char bcast_addr[6]={0xFF,0xFF,0xFF,0xFF,0xFF,0xFF};
diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c
index 2c0894a92abd..8e01c457015b 100644
--- a/drivers/net/hamradio/mkiss.c
+++ b/drivers/net/hamradio/mkiss.c
@@ -997,9 +997,9 @@ static struct tty_ldisc_ops ax_ldisc = {
 	.write_wakeup	= mkiss_write_wakeup
 };
 
-static const char banner[] __initdata = KERN_INFO \
+static const char banner[] __initconst = KERN_INFO \
 	"mkiss: AX.25 Multikiss, Hans Albas PE1AYX\n";
-static const char msg_regfail[] __initdata = KERN_ERR \
+static const char msg_regfail[] __initconst = KERN_ERR \
 	"mkiss: can't register line discipline (err = %d)\n";
 
 static int __init mkiss_init_driver(void)
@@ -1015,7 +1015,7 @@ static int __init mkiss_init_driver(void)
 	return status;
 }
 
-static const char msg_unregfail[] __exitdata = KERN_ERR \
+static const char msg_unregfail[] = KERN_ERR \
 	"mkiss: can't unregister line discipline (err = %d)\n";
 
 static void __exit mkiss_exit_driver(void)
diff --git a/drivers/net/hamradio/scc.c b/drivers/net/hamradio/scc.c
index efc6c97163a7..1b4a47bd32b7 100644
--- a/drivers/net/hamradio/scc.c
+++ b/drivers/net/hamradio/scc.c
@@ -182,7 +182,7 @@
 
 #include "z8530.h"
 
-static const char banner[] __initdata = KERN_INFO \
+static const char banner[] __initconst = KERN_INFO \
 	"AX.25: Z8530 SCC driver version "VERSION".dl1bke\n";
 
 static void t_dwait(unsigned long);
diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index 5a6412ecce73..c6645f1017af 100644
--- a/drivers/net/hamradio/yam.c
+++ b/drivers/net/hamradio/yam.c
@@ -76,7 +76,7 @@
 /* --------------------------------------------------------------------- */
 
 static const char yam_drvname[] = "yam";
-static const char yam_drvinfo[] __initdata = KERN_INFO \
+static const char yam_drvinfo[] __initconst = KERN_INFO \
 	"YAM driver version 0.8 by F1OAT/F6FBB\n";
 
 /* --------------------------------------------------------------------- */
diff --git a/drivers/net/rionet.c b/drivers/net/rionet.c
index 91d25888a1b9..d8b9b1e8ee02 100644
--- a/drivers/net/rionet.c
+++ b/drivers/net/rionet.c
@@ -26,7 +26,7 @@
 #include <linux/ethtool.h>
 
 #define DRV_NAME        "rionet"
-#define DRV_VERSION     "0.2"
+#define DRV_VERSION     "0.3"
 #define DRV_AUTHOR      "Matt Porter <mporter@kernel.crashing.org>"
 #define DRV_DESC        "Ethernet over RapidIO"
 
@@ -47,8 +47,7 @@ MODULE_LICENSE("GPL");
 
 #define RIONET_TX_RING_SIZE	CONFIG_RIONET_TX_SIZE
 #define RIONET_RX_RING_SIZE	CONFIG_RIONET_RX_SIZE
-
-static LIST_HEAD(rionet_peers);
+#define RIONET_MAX_NETS		8
 
 struct rionet_private {
 	struct rio_mport *mport;
@@ -69,16 +68,14 @@ struct rionet_peer {
 	struct resource *res;
 };
 
-static int rionet_check = 0;
-static int rionet_capable = 1;
+struct rionet_net {
+	struct net_device *ndev;
+	struct list_head peers;
+	struct rio_dev **active;
+	int nact;	/* number of active peers */
+};
 
-/*
- * This is a fast lookup table for translating TX
- * Ethernet packets into a destination RIO device. It
- * could be made into a hash table to save memory depending
- * on system trade-offs.
- */
-static struct rio_dev **rionet_active;
+static struct rionet_net nets[RIONET_MAX_NETS];
 
 #define is_rionet_capable(src_ops, dst_ops)			\
 			((src_ops & RIO_SRC_OPS_DATA_MSG) &&	\
@@ -175,6 +172,7 @@ static int rionet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	struct ethhdr *eth = (struct ethhdr *)skb->data;
 	u16 destid;
 	unsigned long flags;
+	int add_num = 1;
 
 	local_irq_save(flags);
 	if (!spin_trylock(&rnet->tx_lock)) {
@@ -182,7 +180,10 @@ static int rionet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 		return NETDEV_TX_LOCKED;
 	}
 
-	if ((rnet->tx_cnt + 1) > RIONET_TX_RING_SIZE) {
+	if (is_multicast_ether_addr(eth->h_dest))
+		add_num = nets[rnet->mport->id].nact;
+
+	if ((rnet->tx_cnt + add_num) > RIONET_TX_RING_SIZE) {
 		netif_stop_queue(ndev);
 		spin_unlock_irqrestore(&rnet->tx_lock, flags);
 		printk(KERN_ERR "%s: BUG! Tx Ring full when queue awake!\n",
@@ -191,15 +192,22 @@ static int rionet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	}
 
 	if (is_multicast_ether_addr(eth->h_dest)) {
+		int count = 0;
+
 		for (i = 0; i < RIO_MAX_ROUTE_ENTRIES(rnet->mport->sys_size);
 				i++)
-			if (rionet_active[i])
+			if (nets[rnet->mport->id].active[i]) {
 				rionet_queue_tx_msg(skb, ndev,
-						    rionet_active[i]);
+					nets[rnet->mport->id].active[i]);
+				if (count)
+					atomic_inc(&skb->users);
+				count++;
+			}
 	} else if (RIONET_MAC_MATCH(eth->h_dest)) {
 		destid = RIONET_GET_DESTID(eth->h_dest);
-		if (rionet_active[destid])
-			rionet_queue_tx_msg(skb, ndev, rionet_active[destid]);
+		if (nets[rnet->mport->id].active[destid])
+			rionet_queue_tx_msg(skb, ndev,
+					nets[rnet->mport->id].active[destid]);
 	}
 
 	spin_unlock_irqrestore(&rnet->tx_lock, flags);
@@ -218,16 +226,21 @@ static void rionet_dbell_event(struct rio_mport *mport, void *dev_id, u16 sid, u
 		printk(KERN_INFO "%s: doorbell sid %4.4x tid %4.4x info %4.4x",
 		       DRV_NAME, sid, tid, info);
 	if (info == RIONET_DOORBELL_JOIN) {
-		if (!rionet_active[sid]) {
-			list_for_each_entry(peer, &rionet_peers, node) {
-				if (peer->rdev->destid == sid)
-					rionet_active[sid] = peer->rdev;
+		if (!nets[rnet->mport->id].active[sid]) {
+			list_for_each_entry(peer,
+					   &nets[rnet->mport->id].peers, node) {
+				if (peer->rdev->destid == sid) {
+					nets[rnet->mport->id].active[sid] =
+								peer->rdev;
+					nets[rnet->mport->id].nact++;
+				}
 			}
 			rio_mport_send_doorbell(mport, sid,
 						RIONET_DOORBELL_JOIN);
 		}
 	} else if (info == RIONET_DOORBELL_LEAVE) {
-		rionet_active[sid] = NULL;
+		nets[rnet->mport->id].active[sid] = NULL;
+		nets[rnet->mport->id].nact--;
 	} else {
 		if (netif_msg_intr(rnet))
 			printk(KERN_WARNING "%s: unhandled doorbell\n",
@@ -321,7 +334,8 @@ static int rionet_open(struct net_device *ndev)
 	netif_carrier_on(ndev);
 	netif_start_queue(ndev);
 
-	list_for_each_entry_safe(peer, tmp, &rionet_peers, node) {
+	list_for_each_entry_safe(peer, tmp,
+				 &nets[rnet->mport->id].peers, node) {
 		if (!(peer->res = rio_request_outb_dbell(peer->rdev,
 							 RIONET_DOORBELL_JOIN,
 							 RIONET_DOORBELL_LEAVE)))
@@ -346,7 +360,7 @@ static int rionet_close(struct net_device *ndev)
 	int i;
 
 	if (netif_msg_ifup(rnet))
-		printk(KERN_INFO "%s: close\n", DRV_NAME);
+		printk(KERN_INFO "%s: close %s\n", DRV_NAME, ndev->name);
 
 	netif_stop_queue(ndev);
 	netif_carrier_off(ndev);
@@ -354,10 +368,11 @@ static int rionet_close(struct net_device *ndev)
 	for (i = 0; i < RIONET_RX_RING_SIZE; i++)
 		kfree_skb(rnet->rx_skb[i]);
 
-	list_for_each_entry_safe(peer, tmp, &rionet_peers, node) {
-		if (rionet_active[peer->rdev->destid]) {
+	list_for_each_entry_safe(peer, tmp,
+				 &nets[rnet->mport->id].peers, node) {
+		if (nets[rnet->mport->id].active[peer->rdev->destid]) {
 			rio_send_doorbell(peer->rdev, RIONET_DOORBELL_LEAVE);
-			rionet_active[peer->rdev->destid] = NULL;
+			nets[rnet->mport->id].active[peer->rdev->destid] = NULL;
 		}
 		rio_release_outb_dbell(peer->rdev, peer->res);
 	}
@@ -373,17 +388,21 @@ static int rionet_close(struct net_device *ndev)
 static void rionet_remove(struct rio_dev *rdev)
 {
 	struct net_device *ndev = rio_get_drvdata(rdev);
+	unsigned char netid = rdev->net->hport->id;
 	struct rionet_peer *peer, *tmp;
 
-	free_pages((unsigned long)rionet_active, get_order(sizeof(void *) *
-			RIO_MAX_ROUTE_ENTRIES(rdev->net->hport->sys_size)));
 	unregister_netdev(ndev);
-	free_netdev(ndev);
 
-	list_for_each_entry_safe(peer, tmp, &rionet_peers, node) {
+	free_pages((unsigned long)nets[netid].active, get_order(sizeof(void *) *
+			RIO_MAX_ROUTE_ENTRIES(rdev->net->hport->sys_size)));
+	nets[netid].active = NULL;
+
+	list_for_each_entry_safe(peer, tmp, &nets[netid].peers, node) {
 		list_del(&peer->node);
 		kfree(peer);
 	}
+
+	free_netdev(ndev);
 }
 
 static void rionet_get_drvinfo(struct net_device *ndev,
@@ -435,13 +454,13 @@ static int rionet_setup_netdev(struct rio_mport *mport, struct net_device *ndev)
 	const size_t rionet_active_bytes = sizeof(void *) *
 				RIO_MAX_ROUTE_ENTRIES(mport->sys_size);
 
-	rionet_active = (struct rio_dev **)__get_free_pages(GFP_KERNEL,
-			get_order(rionet_active_bytes));
-	if (!rionet_active) {
+	nets[mport->id].active = (struct rio_dev **)__get_free_pages(GFP_KERNEL,
+						get_order(rionet_active_bytes));
+	if (!nets[mport->id].active) {
 		rc = -ENOMEM;
 		goto out;
 	}
-	memset((void *)rionet_active, 0, rionet_active_bytes);
+	memset((void *)nets[mport->id].active, 0, rionet_active_bytes);
 
 	/* Set up private area */
 	rnet = netdev_priv(ndev);
@@ -470,60 +489,62 @@ static int rionet_setup_netdev(struct rio_mport *mport, struct net_device *ndev)
 	if (rc != 0)
 		goto out;
 
-	printk("%s: %s %s Version %s, MAC %pM\n",
+	printk(KERN_INFO "%s: %s %s Version %s, MAC %pM, %s\n",
 	       ndev->name,
 	       DRV_NAME,
 	       DRV_DESC,
 	       DRV_VERSION,
-	       ndev->dev_addr);
+	       ndev->dev_addr,
+	       mport->name);
 
       out:
 	return rc;
 }
 
-/*
- * XXX Make multi-net safe
- */
+static unsigned long net_table[RIONET_MAX_NETS/sizeof(unsigned long) + 1];
+
 static int rionet_probe(struct rio_dev *rdev, const struct rio_device_id *id)
 {
 	int rc = -ENODEV;
 	u32 lsrc_ops, ldst_ops;
 	struct rionet_peer *peer;
 	struct net_device *ndev = NULL;
+	unsigned char netid = rdev->net->hport->id;
+	int oldnet;
 
-	/* If local device is not rionet capable, give up quickly */
-	if (!rionet_capable)
-		goto out;
+	if (netid >= RIONET_MAX_NETS)
+		return rc;
 
-	/* Allocate our net_device structure */
-	ndev = alloc_etherdev(sizeof(struct rionet_private));
-	if (ndev == NULL) {
-		rc = -ENOMEM;
-		goto out;
-	}
+	oldnet = test_and_set_bit(netid, net_table);
 
 	/*
 	 * First time through, make sure local device is rionet
-	 * capable, setup netdev,  and set flags so this is skipped
-	 * on later probes
+	 * capable, setup netdev (will be skipped on later probes)
 	 */
-	if (!rionet_check) {
+	if (!oldnet) {
 		rio_local_read_config_32(rdev->net->hport, RIO_SRC_OPS_CAR,
 					 &lsrc_ops);
 		rio_local_read_config_32(rdev->net->hport, RIO_DST_OPS_CAR,
 					 &ldst_ops);
 		if (!is_rionet_capable(lsrc_ops, ldst_ops)) {
 			printk(KERN_ERR
-			       "%s: local device is not network capable\n",
-			       DRV_NAME);
-			rionet_check = 1;
-			rionet_capable = 0;
+			       "%s: local device %s is not network capable\n",
+			       DRV_NAME, rdev->net->hport->name);
 			goto out;
 		}
 
+		/* Allocate our net_device structure */
+		ndev = alloc_etherdev(sizeof(struct rionet_private));
+		if (ndev == NULL) {
+			rc = -ENOMEM;
+			goto out;
+		}
+		nets[netid].ndev = ndev;
 		rc = rionet_setup_netdev(rdev->net->hport, ndev);
-		rionet_check = 1;
-	}
+		INIT_LIST_HEAD(&nets[netid].peers);
+		nets[netid].nact = 0;
+	} else if (nets[netid].ndev == NULL)
+		goto out;
 
 	/*
 	 * If the remote device has mailbox/doorbell capabilities,
@@ -535,10 +556,10 @@ static int rionet_probe(struct rio_dev *rdev, const struct rio_device_id *id)
 			goto out;
 		}
 		peer->rdev = rdev;
-		list_add_tail(&peer->node, &rionet_peers);
+		list_add_tail(&peer->node, &nets[netid].peers);
 	}
 
-	rio_set_drvdata(rdev, ndev);
+	rio_set_drvdata(rdev, nets[netid].ndev);
 
       out:
 	return rc;
diff --git a/drivers/net/wan/z85230.c b/drivers/net/wan/z85230.c
index 0e5769061702..feacc3b994b7 100644
--- a/drivers/net/wan/z85230.c
+++ b/drivers/net/wan/z85230.c
@@ -1775,7 +1775,7 @@ EXPORT_SYMBOL(z8530_queue_xmit);
 /*
  *	Module support
  */
-static const char banner[] __initdata =
+static const char banner[] __initconst =
 	KERN_INFO "Generic Z85C30/Z85230 interface driver v0.02\n";
 
 static int __init z85230_init_driver(void)
diff --git a/drivers/platform/x86/amilo-rfkill.c b/drivers/platform/x86/amilo-rfkill.c
index a514bf66fdd7..1deca7f6c4ea 100644
--- a/drivers/platform/x86/amilo-rfkill.c
+++ b/drivers/platform/x86/amilo-rfkill.c
@@ -74,7 +74,7 @@ static const struct rfkill_ops amilo_m7440_rfkill_ops = {
 	.set_block = amilo_m7440_rfkill_set_block
 };
 
-static const struct dmi_system_id __devinitdata amilo_rfkill_id_table[] = {
+static const struct dmi_system_id __devinitconst amilo_rfkill_id_table[] = {
 	{
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
diff --git a/drivers/platform/x86/fujitsu-tablet.c b/drivers/platform/x86/fujitsu-tablet.c
index 7acae3f85f3b..f77484528b1b 100644
--- a/drivers/platform/x86/fujitsu-tablet.c
+++ b/drivers/platform/x86/fujitsu-tablet.c
@@ -52,7 +52,7 @@ struct fujitsu_config {
 	unsigned int quirks;
 };
 
-static unsigned short keymap_Lifebook_Tseries[KEYMAP_LEN] __initconst = {
+static unsigned short keymap_Lifebook_Tseries[KEYMAP_LEN] __initdata = {
 	KEY_RESERVED,
 	KEY_RESERVED,
 	KEY_RESERVED,
@@ -71,7 +71,7 @@ static unsigned short keymap_Lifebook_Tseries[KEYMAP_LEN] __initconst = {
 	KEY_LEFTALT
 };
 
-static unsigned short keymap_Lifebook_U810[KEYMAP_LEN] __initconst = {
+static unsigned short keymap_Lifebook_U810[KEYMAP_LEN] __initdata = {
 	KEY_RESERVED,
 	KEY_RESERVED,
 	KEY_RESERVED,
@@ -90,7 +90,7 @@ static unsigned short keymap_Lifebook_U810[KEYMAP_LEN] __initconst = {
 	KEY_LEFTALT
 };
 
-static unsigned short keymap_Stylistic_Tseries[KEYMAP_LEN] __initconst = {
+static unsigned short keymap_Stylistic_Tseries[KEYMAP_LEN] __initdata = {
 	KEY_RESERVED,
 	KEY_RESERVED,
 	KEY_RESERVED,
@@ -109,7 +109,7 @@ static unsigned short keymap_Stylistic_Tseries[KEYMAP_LEN] __initconst = {
 	KEY_LEFTALT
 };
 
-static unsigned short keymap_Stylistic_ST5xxx[KEYMAP_LEN] __initconst = {
+static unsigned short keymap_Stylistic_ST5xxx[KEYMAP_LEN] __initdata = {
 	KEY_RESERVED,
 	KEY_RESERVED,
 	KEY_RESERVED,
@@ -299,7 +299,7 @@ static int __devinit fujitsu_dmi_stylistic(const struct dmi_system_id *dmi)
 	return 1;
 }
 
-static struct dmi_system_id dmi_ids[] __initconst = {
+static const struct dmi_system_id dmi_ids[] __initconst = {
 	{
 		.callback = fujitsu_dmi_lifebook,
 		.ident = "Fujitsu Siemens P/T Series",
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 9da5fe715e6a..75dd651664ae 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -522,7 +522,7 @@ static acpi_handle ec_handle;
 
 #define TPACPI_HANDLE(object, parent, paths...)			\
 	static acpi_handle  object##_handle;			\
-	static const acpi_handle *object##_parent __initdata =	\
+	static const acpi_handle * const object##_parent __initconst =	\
 						&parent##_handle; \
 	static char *object##_paths[] __initdata = { paths }
 
diff --git a/drivers/pps/pps.c b/drivers/pps/pps.c
index e771487132f7..2420d5af0583 100644
--- a/drivers/pps/pps.c
+++ b/drivers/pps/pps.c
@@ -306,7 +306,7 @@ int pps_register_cdev(struct pps_device *pps)
 	if (err < 0)
 		return err;
 
-	pps->id &= MAX_ID_MASK;
+	pps->id &= MAX_IDR_MASK;
 	if (pps->id >= PPS_MAX_SOURCES) {
 		pr_err("%s: too many PPS sources in the system\n",
 					pps->info.name);
diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c
index d5e1625bbac2..38ecd8f4d60e 100644
--- a/drivers/rapidio/devices/tsi721.c
+++ b/drivers/rapidio/devices/tsi721.c
@@ -862,6 +862,90 @@ static void tsi721_init_pc2sr_mapping(struct tsi721_device *priv)
 }
 
 /**
+ * tsi721_rio_map_inb_mem -- Mapping inbound memory region.
+ * @mport: RapidIO master port
+ * @lstart: Local memory space start address.
+ * @rstart: RapidIO space start address.
+ * @size: The mapping region size.
+ * @flags: Flags for mapping. 0 for using default flags.
+ *
+ * Return: 0 -- Success.
+ *
+ * This function will create the inbound mapping
+ * from rstart to lstart.
+ */
+static int tsi721_rio_map_inb_mem(struct rio_mport *mport, dma_addr_t lstart,
+		u64 rstart, u32 size, u32 flags)
+{
+	struct tsi721_device *priv = mport->priv;
+	int i;
+	u32 regval;
+
+	if (!is_power_of_2(size) || size < 0x1000 ||
+	    ((u64)lstart & (size - 1)) || (rstart & (size - 1)))
+		return -EINVAL;
+
+	/* Search for free inbound translation window */
+	for (i = 0; i < TSI721_IBWIN_NUM; i++) {
+		regval = ioread32(priv->regs + TSI721_IBWIN_LB(i));
+		if (!(regval & TSI721_IBWIN_LB_WEN))
+			break;
+	}
+
+	if (i >= TSI721_IBWIN_NUM) {
+		dev_err(&priv->pdev->dev,
+			"Unable to find free inbound window\n");
+		return -EBUSY;
+	}
+
+	iowrite32(TSI721_IBWIN_SIZE(size) << 8,
+			priv->regs + TSI721_IBWIN_SZ(i));
+
+	iowrite32(((u64)lstart >> 32), priv->regs + TSI721_IBWIN_TUA(i));
+	iowrite32(((u64)lstart & TSI721_IBWIN_TLA_ADD),
+		  priv->regs + TSI721_IBWIN_TLA(i));
+
+	iowrite32(rstart >> 32, priv->regs + TSI721_IBWIN_UB(i));
+	iowrite32((rstart & TSI721_IBWIN_LB_BA) | TSI721_IBWIN_LB_WEN,
+		priv->regs + TSI721_IBWIN_LB(i));
+	dev_dbg(&priv->pdev->dev,
+		"Configured IBWIN%d mapping (RIO_0x%llx -> PCIe_0x%llx)\n",
+		i, rstart, (unsigned long long)lstart);
+
+	return 0;
+}
+
+/**
+ * fsl_rio_unmap_inb_mem -- Unmapping inbound memory region.
+ * @mport: RapidIO master port
+ * @lstart: Local memory space start address.
+ */
+static void tsi721_rio_unmap_inb_mem(struct rio_mport *mport,
+				dma_addr_t lstart)
+{
+	struct tsi721_device *priv = mport->priv;
+	int i;
+	u64 addr;
+	u32 regval;
+
+	/* Search for matching active inbound translation window */
+	for (i = 0; i < TSI721_IBWIN_NUM; i++) {
+		regval = ioread32(priv->regs + TSI721_IBWIN_LB(i));
+		if (regval & TSI721_IBWIN_LB_WEN) {
+			regval = ioread32(priv->regs + TSI721_IBWIN_TUA(i));
+			addr = (u64)regval << 32;
+			regval = ioread32(priv->regs + TSI721_IBWIN_TLA(i));
+			addr |= regval & TSI721_IBWIN_TLA_ADD;
+
+			if (addr == (u64)lstart) {
+				iowrite32(0, priv->regs + TSI721_IBWIN_LB(i));
+				break;
+			}
+		}
+	}
+}
+
+/**
  * tsi721_init_sr2pc_mapping - initializes inbound (SRIO->PCIe)
  * translation regions.
  * @priv: pointer to tsi721 private data
@@ -874,7 +958,7 @@ static void tsi721_init_sr2pc_mapping(struct tsi721_device *priv)
 
 	/* Disable all SR2PC inbound windows */
 	for (i = 0; i < TSI721_IBWIN_NUM; i++)
-		iowrite32(0, priv->regs + TSI721_IBWINLB(i));
+		iowrite32(0, priv->regs + TSI721_IBWIN_LB(i));
 }
 
 /**
@@ -2144,6 +2228,8 @@ static int __devinit tsi721_setup_mport(struct tsi721_device *priv)
 	ops->add_outb_message = tsi721_add_outb_message;
 	ops->add_inb_buffer = tsi721_add_inb_buffer;
 	ops->get_inb_message = tsi721_get_inb_message;
+	ops->map_inb = tsi721_rio_map_inb_mem;
+	ops->unmap_inb = tsi721_rio_unmap_inb_mem;
 
 	mport = kzalloc(sizeof(struct rio_mport), GFP_KERNEL);
 	if (!mport) {
@@ -2165,7 +2251,8 @@ static int __devinit tsi721_setup_mport(struct tsi721_device *priv)
 	rio_init_dbell_res(&mport->riores[RIO_DOORBELL_RESOURCE], 0, 0xffff);
 	rio_init_mbox_res(&mport->riores[RIO_INB_MBOX_RESOURCE], 0, 3);
 	rio_init_mbox_res(&mport->riores[RIO_OUTB_MBOX_RESOURCE], 0, 3);
-	strcpy(mport->name, "Tsi721 mport");
+	snprintf(mport->name, RIO_MAX_MPORT_NAME, "%s(%s)",
+		 dev_driver_string(&pdev->dev), dev_name(&pdev->dev));
 
 	/* Hook up interrupt handler */
 
@@ -2315,7 +2402,8 @@ static int __devinit tsi721_probe(struct pci_dev *pdev,
 
 	/* Configure DMA attributes. */
 	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
-		if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
+		err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+		if (err) {
 			dev_info(&pdev->dev, "Unable to set DMA mask\n");
 			goto err_unmap_bars;
 		}
diff --git a/drivers/rapidio/devices/tsi721.h b/drivers/rapidio/devices/tsi721.h
index 59de9d7be346..7d5b13ba8d4f 100644
--- a/drivers/rapidio/devices/tsi721.h
+++ b/drivers/rapidio/devices/tsi721.h
@@ -156,9 +156,18 @@
 
 #define TSI721_IBWIN_NUM	8
 
-#define TSI721_IBWINLB(x)	(0x29000 + (x) * 0x20)
-#define TSI721_IBWINLB_BA	0xfffff000
-#define TSI721_IBWINLB_WEN	0x00000001
+#define TSI721_IBWIN_LB(x)	(0x29000 + (x) * 0x20)
+#define TSI721_IBWIN_LB_BA	0xfffff000
+#define TSI721_IBWIN_LB_WEN	0x00000001
+
+#define TSI721_IBWIN_UB(x)	(0x29004 + (x) * 0x20)
+#define TSI721_IBWIN_SZ(x)	(0x29008 + (x) * 0x20)
+#define TSI721_IBWIN_SZ_SIZE	0x00001f00
+#define TSI721_IBWIN_SIZE(size)	(__fls(size) - 12)
+
+#define TSI721_IBWIN_TLA(x)	(0x2900c + (x) * 0x20)
+#define TSI721_IBWIN_TLA_ADD	0xfffff000
+#define TSI721_IBWIN_TUA(x)	(0x29010 + (x) * 0x20)
 
 #define TSI721_SR2PC_GEN_INTE	0x29800
 #define TSI721_SR2PC_PWE	0x29804
diff --git a/drivers/rapidio/rio-scan.c b/drivers/rapidio/rio-scan.c
index 2bebd791a092..48e9041dd1e2 100644
--- a/drivers/rapidio/rio-scan.c
+++ b/drivers/rapidio/rio-scan.c
@@ -31,27 +31,21 @@
 #include <linux/module.h>
 #include <linux/spinlock.h>
 #include <linux/timer.h>
+#include <linux/sched.h>
 #include <linux/jiffies.h>
 #include <linux/slab.h>
 
 #include "rio.h"
 
 LIST_HEAD(rio_devices);
-static LIST_HEAD(rio_switches);
-
-static void rio_enum_timeout(unsigned long);
 
 static void rio_init_em(struct rio_dev *rdev);
 
 DEFINE_SPINLOCK(rio_global_list_lock);
 
 static int next_destid = 0;
-static int next_net = 0;
 static int next_comptag = 1;
 
-static struct timer_list rio_enum_timer =
-TIMER_INITIALIZER(rio_enum_timeout, 0, 0);
-
 static int rio_mport_phys_table[] = {
 	RIO_EFB_PAR_EP_ID,
 	RIO_EFB_PAR_EP_REC_ID,
@@ -60,6 +54,114 @@ static int rio_mport_phys_table[] = {
 	-1,
 };
 
+
+/*
+ * rio_destid_alloc - Allocate next available destID for given network
+ * net: RIO network
+ *
+ * Returns next available device destination ID for the specified RIO network.
+ * Marks allocated ID as one in use.
+ * Returns RIO_INVALID_DESTID if new destID is not available.
+ */
+static u16 rio_destid_alloc(struct rio_net *net)
+{
+	int destid;
+	struct rio_id_table *idtab = &net->destid_table;
+
+	spin_lock(&idtab->lock);
+	destid = find_next_zero_bit(idtab->table, idtab->max, idtab->next);
+	if (destid >= idtab->max)
+		destid = find_first_zero_bit(idtab->table, idtab->max);
+
+	if (destid < idtab->max) {
+		idtab->next = destid + 1;
+		if (idtab->next >= idtab->max)
+			idtab->next = 0;
+		set_bit(destid, idtab->table);
+		destid += idtab->start;
+	} else
+		destid = RIO_INVALID_DESTID;
+
+	spin_unlock(&idtab->lock);
+	return (u16)destid;
+}
+
+/*
+ * rio_destid_reserve - Reserve the specivied destID
+ * net: RIO network
+ * destid: destID to reserve
+ *
+ * Tries to reserve the specified destID.
+ * Returns 0 if successfull.
+ */
+static int rio_destid_reserve(struct rio_net *net, u16 destid)
+{
+	int oldbit;
+	struct rio_id_table *idtab = &net->destid_table;
+
+	destid -= idtab->start;
+	spin_lock(&idtab->lock);
+	oldbit = test_and_set_bit(destid, idtab->table);
+	spin_unlock(&idtab->lock);
+	return oldbit;
+}
+
+/*
+ * rio_destid_free - free a previously allocated destID
+ * net: RIO network
+ * destid: destID to free
+ *
+ * Makes the specified destID available for use.
+ */
+static void rio_destid_free(struct rio_net *net, u16 destid)
+{
+	struct rio_id_table *idtab = &net->destid_table;
+
+	destid -= idtab->start;
+	spin_lock(&idtab->lock);
+	clear_bit(destid, idtab->table);
+	spin_unlock(&idtab->lock);
+}
+
+/*
+ * rio_destid_first - return first destID in use
+ * net: RIO network
+ */
+static u16 rio_destid_first(struct rio_net *net)
+{
+	int destid;
+	struct rio_id_table *idtab = &net->destid_table;
+
+	spin_lock(&idtab->lock);
+	destid = find_first_bit(idtab->table, idtab->max);
+	if (destid >= idtab->max)
+		destid = RIO_INVALID_DESTID;
+	else
+		destid += idtab->start;
+	spin_unlock(&idtab->lock);
+	return (u16)destid;
+}
+
+/*
+ * rio_destid_next - return next destID in use
+ * net: RIO network
+ * from: destination ID from which search shall continue
+ */
+static u16 rio_destid_next(struct rio_net *net, u16 from)
+{
+	int destid;
+	struct rio_id_table *idtab = &net->destid_table;
+
+	spin_lock(&idtab->lock);
+	destid = find_next_bit(idtab->table, idtab->max, from);
+	if (destid >= idtab->max)
+		destid = RIO_INVALID_DESTID;
+	else
+		destid += idtab->start;
+	spin_unlock(&idtab->lock);
+	return (u16)destid;
+}
+
 /**
  * rio_get_device_id - Get the base/extended device id for a device
  * @port: RIO master port
@@ -108,14 +210,15 @@ static void rio_local_set_device_id(struct rio_mport *port, u16 did)
 
 /**
  * rio_clear_locks- Release all host locks and signal enumeration complete
- * @port: Master port to issue transaction
+ * @net: RIO network to run on
  *
  * Marks the component tag CSR on each device with the enumeration
  * complete flag. When complete, it then release the host locks on
  * each device. Returns 0 on success or %-EINVAL on failure.
  */
-static int rio_clear_locks(struct rio_mport *port)
+static int rio_clear_locks(struct rio_net *net)
 {
+	struct rio_mport *port = net->hport;
 	struct rio_dev *rdev;
 	u32 result;
 	int ret = 0;
@@ -130,7 +233,7 @@ static int rio_clear_locks(struct rio_mport *port)
 		       result);
 		ret = -EINVAL;
 	}
-	list_for_each_entry(rdev, &rio_devices, global_list) {
+	list_for_each_entry(rdev, &net->devices, net_list) {
 		rio_write_config_32(rdev, RIO_HOST_DID_LOCK_CSR,
 				    port->host_deviceid);
 		rio_read_config_32(rdev, RIO_HOST_DID_LOCK_CSR, &result);
@@ -176,10 +279,6 @@ static int rio_enum_host(struct rio_mport *port)
 
 	/* Set master port destid and init destid ctr */
 	rio_local_set_device_id(port, port->host_deviceid);
-
-	if (next_destid == port->host_deviceid)
-		next_destid++;
-
 	return 0;
 }
 
@@ -446,9 +545,8 @@ static struct rio_dev __devinit *rio_setup_device(struct rio_net *net,
 	if (rio_device_has_destid(port, rdev->src_ops, rdev->dst_ops)) {
 		if (do_enum) {
 			rio_set_device_id(port, destid, hopcount, next_destid);
-			rdev->destid = next_destid++;
-			if (next_destid == port->host_deviceid)
-				next_destid++;
+			rdev->destid = next_destid;
+			next_destid = rio_destid_alloc(net);
 		} else
 			rdev->destid = rio_get_device_id(port, destid, hopcount);
 
@@ -483,7 +581,7 @@ static struct rio_dev __devinit *rio_setup_device(struct rio_net *net,
 			rswitch->clr_table(port, destid, hopcount,
 					   RIO_GLOBAL_TABLE);
 
-		list_add_tail(&rswitch->node, &rio_switches);
+		list_add_tail(&rswitch->node, &net->switches);
 
 	} else {
 		if (do_enum)
@@ -747,12 +845,7 @@ static u16 rio_get_host_deviceid_lock(struct rio_mport *port, u8 hopcount)
 static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
 			 u8 hopcount, struct rio_dev *prev, int prev_port)
 {
-	int port_num;
-	int cur_destid;
-	int sw_destid;
-	int sw_inport;
 	struct rio_dev *rdev;
-	u16 destid;
 	u32 regval;
 	int tmp;
 
@@ -818,19 +911,26 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
 		return -1;
 
 	if (rio_is_switch(rdev)) {
+		int sw_destid;
+		int cur_destid;
+		int sw_inport;
+		u16 destid;
+		int port_num;
+
 		sw_inport = RIO_GET_PORT_NUM(rdev->swpinfo);
 		rio_route_add_entry(rdev, RIO_GLOBAL_TABLE,
 				    port->host_deviceid, sw_inport, 0);
 		rdev->rswitch->route_table[port->host_deviceid] = sw_inport;
 
-		for (destid = 0; destid < next_destid; destid++) {
-			if (destid == port->host_deviceid)
-				continue;
-			rio_route_add_entry(rdev, RIO_GLOBAL_TABLE,
-					    destid, sw_inport, 0);
-			rdev->rswitch->route_table[destid] = sw_inport;
+		destid = rio_destid_first(net);
+		while (destid != RIO_INVALID_DESTID && destid < next_destid) {
+			if (destid != port->host_deviceid) {
+				rio_route_add_entry(rdev, RIO_GLOBAL_TABLE,
+						    destid, sw_inport, 0);
+				rdev->rswitch->route_table[destid] = sw_inport;
+			}
+			destid = rio_destid_next(net, destid + 1);
 		}
-
 		pr_debug(
 		    "RIO: found %s (vid %4.4x did %4.4x) with %d ports\n",
 		    rio_name(rdev), rdev->vid, rdev->did,
@@ -839,12 +939,10 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
 		for (port_num = 0;
 		     port_num < RIO_GET_TOTAL_PORTS(rdev->swpinfo);
 		     port_num++) {
-			/*Enable Input Output Port (transmitter reviever)*/
-			rio_enable_rx_tx_port(port, 0,
+			if (sw_inport == port_num) {
+				rio_enable_rx_tx_port(port, 0,
 					      RIO_ANY_DESTID(port->sys_size),
 					      hopcount, port_num);
-
-			if (sw_inport == port_num) {
 				rdev->rswitch->port_ok |= (1 << port_num);
 				continue;
 			}
@@ -857,6 +955,9 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
 				pr_debug(
 				    "RIO: scanning device on port %d\n",
 				    port_num);
+				rio_enable_rx_tx_port(port, 0,
+					      RIO_ANY_DESTID(port->sys_size),
+					      hopcount, port_num);
 				rdev->rswitch->port_ok |= (1 << port_num);
 				rio_route_add_entry(rdev, RIO_GLOBAL_TABLE,
 						RIO_ANY_DESTID(port->sys_size),
@@ -867,19 +968,22 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
 					return -1;
 
 				/* Update routing tables */
-				if (next_destid > cur_destid) {
+				destid = rio_destid_next(net, cur_destid + 1);
+				if (destid != RIO_INVALID_DESTID) {
 					for (destid = cur_destid;
-					     destid < next_destid; destid++) {
-						if (destid == port->host_deviceid)
-							continue;
-						rio_route_add_entry(rdev,
+					     destid < next_destid;) {
+						if (destid != port->host_deviceid) {
+							rio_route_add_entry(rdev,
 								    RIO_GLOBAL_TABLE,
 								    destid,
 								    port_num,
 								    0);
-						rdev->rswitch->
-						    route_table[destid] =
-						    port_num;
+							rdev->rswitch->
+								route_table[destid] =
+								port_num;
+						}
+						destid = rio_destid_next(net,
+								destid + 1);
 					}
 				}
 			} else {
@@ -905,11 +1009,8 @@ static int __devinit rio_enum_peer(struct rio_net *net, struct rio_mport *port,
 		rio_init_em(rdev);
 
 		/* Check for empty switch */
-		if (next_destid == sw_destid) {
-			next_destid++;
-			if (next_destid == port->host_deviceid)
-				next_destid++;
-		}
+		if (next_destid == sw_destid)
+			next_destid = rio_destid_alloc(net);
 
 		rdev->destid = sw_destid;
 	} else
@@ -1047,48 +1148,71 @@ static int rio_mport_is_active(struct rio_mport *port)
 /**
  * rio_alloc_net- Allocate and configure a new RIO network
  * @port: Master port associated with the RIO network
+ * @do_enum: Enumeration/Discovery mode flag
+ * @start: logical minimal start id for new net
  *
  * Allocates a RIO network structure, initializes per-network
  * list heads, and adds the associated master port to the
  * network list of associated master ports. Returns a
  * RIO network pointer on success or %NULL on failure.
  */
-static struct rio_net __devinit *rio_alloc_net(struct rio_mport *port)
+static struct rio_net __devinit *rio_alloc_net(struct rio_mport *port,
+					       int do_enum, u16 start)
 {
 	struct rio_net *net;
 
 	net = kzalloc(sizeof(struct rio_net), GFP_KERNEL);
+	if (net && do_enum) {
+		net->destid_table.table = kzalloc(
+			BITS_TO_LONGS(RIO_MAX_ROUTE_ENTRIES(port->sys_size)) *
+			sizeof(long),
+			GFP_KERNEL);
+
+		if (net->destid_table.table == NULL) {
+			pr_err("RIO: failed to allocate destID table\n");
+			kfree(net);
+			net = NULL;
+		} else {
+			net->destid_table.start = start;
+			net->destid_table.next = 0;
+			net->destid_table.max =
+					RIO_MAX_ROUTE_ENTRIES(port->sys_size);
+			spin_lock_init(&net->destid_table.lock);
+		}
+	}
+
 	if (net) {
 		INIT_LIST_HEAD(&net->node);
 		INIT_LIST_HEAD(&net->devices);
+		INIT_LIST_HEAD(&net->switches);
 		INIT_LIST_HEAD(&net->mports);
 		list_add_tail(&port->nnode, &net->mports);
 		net->hport = port;
-		net->id = next_net++;
+		net->id = port->id;
 	}
 	return net;
 }
 
 /**
  * rio_update_route_tables- Updates route tables in switches
- * @port: Master port associated with the RIO network
+ * @net: RIO network to run update on
  *
  * For each enumerated device, ensure that each switch in a system
  * has correct routing entries. Add routes for devices that where
  * unknown dirung the first enumeration pass through the switch.
  */
-static void rio_update_route_tables(struct rio_mport *port)
+static void rio_update_route_tables(struct rio_net *net)
 {
 	struct rio_dev *rdev, *swrdev;
 	struct rio_switch *rswitch;
 	u8 sport;
 	u16 destid;
 
-	list_for_each_entry(rdev, &rio_devices, global_list) {
+	list_for_each_entry(rdev, &net->devices, net_list) {
 
 		destid = rdev->destid;
 
-		list_for_each_entry(rswitch, &rio_switches, node) {
+		list_for_each_entry(rswitch, &net->switches, node) {
 
 			if (rio_is_switch(rdev)	&& (rdev->rswitch == rswitch))
 				continue;
@@ -1166,12 +1290,16 @@ int __devinit rio_enum_mport(struct rio_mport *mport)
 
 	/* If master port has an active link, allocate net and enum peers */
 	if (rio_mport_is_active(mport)) {
-		if (!(net = rio_alloc_net(mport))) {
+		net = rio_alloc_net(mport, 1, 0);
+		if (!net) {
 			printk(KERN_ERR "RIO: failed to allocate new net\n");
 			rc = -ENOMEM;
 			goto out;
 		}
 
+		/* reserve mport destID in new net */
+		rio_destid_reserve(net, mport->host_deviceid);
+
 		/* Enable Input Output Port (transmitter reviever) */
 		rio_enable_rx_tx_port(mport, 1, 0, 0, 0);
 
@@ -1179,17 +1307,21 @@ int __devinit rio_enum_mport(struct rio_mport *mport)
 		rio_local_write_config_32(mport, RIO_COMPONENT_TAG_CSR,
 					  next_comptag++);
 
+		next_destid = rio_destid_alloc(net);
+
 		if (rio_enum_peer(net, mport, 0, NULL, 0) < 0) {
 			/* A higher priority host won enumeration, bail. */
 			printk(KERN_INFO
 			       "RIO: master port %d device has lost enumeration to a remote host\n",
 			       mport->id);
-			rio_clear_locks(mport);
+			rio_clear_locks(net);
 			rc = -EBUSY;
 			goto out;
 		}
-		rio_update_route_tables(mport);
-		rio_clear_locks(mport);
+		/* free the last allocated destID (unused) */
+		rio_destid_free(net, next_destid);
+		rio_update_route_tables(net);
+		rio_clear_locks(net);
 		rio_pw_enable(mport, 1);
 	} else {
 		printk(KERN_INFO "RIO: master port %d link inactive\n",
@@ -1203,47 +1335,34 @@ int __devinit rio_enum_mport(struct rio_mport *mport)
 
 /**
  * rio_build_route_tables- Generate route tables from switch route entries
+ * @net: RIO network to run route tables scan on
  *
  * For each switch device, generate a route table by copying existing
  * route entries from the switch.
  */
-static void rio_build_route_tables(void)
+static void rio_build_route_tables(struct rio_net *net)
 {
+	struct rio_switch *rswitch;
 	struct rio_dev *rdev;
 	int i;
 	u8 sport;
 
-	list_for_each_entry(rdev, &rio_devices, global_list)
-		if (rio_is_switch(rdev)) {
-			rio_lock_device(rdev->net->hport, rdev->destid,
-					rdev->hopcount, 1000);
-			for (i = 0;
-			     i < RIO_MAX_ROUTE_ENTRIES(rdev->net->hport->sys_size);
-			     i++) {
-				if (rio_route_get_entry(rdev,
-					RIO_GLOBAL_TABLE, i, &sport, 0) < 0)
-					continue;
-				rdev->rswitch->route_table[i] = sport;
-			}
+	list_for_each_entry(rswitch, &net->switches, node) {
+		rdev = sw_to_rio_dev(rswitch);
 
-			rio_unlock_device(rdev->net->hport,
-					  rdev->destid,
-					  rdev->hopcount);
+		rio_lock_device(net->hport, rdev->destid,
+				rdev->hopcount, 1000);
+		for (i = 0;
+		     i < RIO_MAX_ROUTE_ENTRIES(net->hport->sys_size);
+		     i++) {
+			if (rio_route_get_entry(rdev, RIO_GLOBAL_TABLE,
+						i, &sport, 0) < 0)
+				continue;
+			rswitch->route_table[i] = sport;
 		}
-}
 
-/**
- * rio_enum_timeout- Signal that enumeration timed out
- * @data: Address of timeout flag.
- *
- * When the enumeration complete timer expires, set a flag that
- * signals to the discovery process that enumeration did not
- * complete in a sane amount of time.
- */
-static void rio_enum_timeout(unsigned long data)
-{
-	/* Enumeration timed out, set flag */
-	*(int *)data = 1;
+		rio_unlock_device(net->hport, rdev->destid, rdev->hopcount);
+	}
 }
 
 /**
@@ -1259,34 +1378,33 @@ static void rio_enum_timeout(unsigned long data)
 int __devinit rio_disc_mport(struct rio_mport *mport)
 {
 	struct rio_net *net = NULL;
-	int enum_timeout_flag = 0;
+	unsigned long to_end;
 
 	printk(KERN_INFO "RIO: discover master port %d, %s\n", mport->id,
 	       mport->name);
 
 	/* If master port has an active link, allocate net and discover peers */
 	if (rio_mport_is_active(mport)) {
-		if (!(net = rio_alloc_net(mport))) {
-			printk(KERN_ERR "RIO: Failed to allocate new net\n");
-			goto bail;
-		}
+		pr_debug("RIO: wait for enumeration to complete...\n");
 
-		pr_debug("RIO: wait for enumeration complete...");
-
-		rio_enum_timer.expires =
-		    jiffies + CONFIG_RAPIDIO_DISC_TIMEOUT * HZ;
-		rio_enum_timer.data = (unsigned long)&enum_timeout_flag;
-		add_timer(&rio_enum_timer);
-		while (!rio_enum_complete(mport)) {
-			mdelay(1);
-			if (enum_timeout_flag) {
-				del_timer_sync(&rio_enum_timer);
-				goto timeout;
-			}
+		to_end = jiffies + CONFIG_RAPIDIO_DISC_TIMEOUT * HZ;
+		while (time_before(jiffies, to_end)) {
+			if (rio_enum_complete(mport))
+				goto enum_done;
+			schedule_timeout_uninterruptible(msecs_to_jiffies(10));
 		}
-		del_timer_sync(&rio_enum_timer);
 
-		pr_debug("done\n");
+		pr_debug("RIO: discovery timeout on mport %d %s\n",
+			 mport->id, mport->name);
+		goto bail;
+enum_done:
+		pr_debug("RIO: ... enumeration done\n");
+
+		net = rio_alloc_net(mport, 0, 0);
+		if (!net) {
+			printk(KERN_ERR "RIO: Failed to allocate new net\n");
+			goto bail;
+		}
 
 		/* Read DestID assigned by enumerator */
 		rio_local_read_config_32(mport, RIO_DID_CSR,
@@ -1302,13 +1420,10 @@ int __devinit rio_disc_mport(struct rio_mport *mport)
 			goto bail;
 		}
 
-		rio_build_route_tables();
+		rio_build_route_tables(net);
 	}
 
 	return 0;
-
-      timeout:
-	pr_debug("timeout\n");
-      bail:
+bail:
 	return -EBUSY;
 }
diff --git a/drivers/rapidio/rio.c b/drivers/rapidio/rio.c
index c40665a4fa33..d4bd69013c50 100644
--- a/drivers/rapidio/rio.c
+++ b/drivers/rapidio/rio.c
@@ -33,6 +33,7 @@
 
 static LIST_HEAD(rio_mports);
 static unsigned char next_portid;
+static DEFINE_SPINLOCK(rio_mmap_lock);
 
 /**
  * rio_local_get_device_id - Get the base/extended device id for a port
@@ -398,6 +399,49 @@ int rio_release_inb_pwrite(struct rio_dev *rdev)
 EXPORT_SYMBOL_GPL(rio_release_inb_pwrite);
 
 /**
+ * rio_map_inb_region -- Map inbound memory region.
+ * @mport: Master port.
+ * @lstart: physical address of memory region to be mapped
+ * @rbase: RIO base address assigned to this window
+ * @size: Size of the memory region
+ * @rflags: Flags for mapping.
+ *
+ * Return: 0 -- Success.
+ *
+ * This function will create the mapping from RIO space to local memory.
+ */
+int rio_map_inb_region(struct rio_mport *mport, dma_addr_t local,
+			u64 rbase, u32 size, u32 rflags)
+{
+	int rc = 0;
+	unsigned long flags;
+
+	if (!mport->ops->map_inb)
+		return -1;
+	spin_lock_irqsave(&rio_mmap_lock, flags);
+	rc = mport->ops->map_inb(mport, local, rbase, size, rflags);
+	spin_unlock_irqrestore(&rio_mmap_lock, flags);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(rio_map_inb_region);
+
+/**
+ * rio_unmap_inb_region -- Unmap the inbound memory region
+ * @mport: Master port
+ * @lstart: physical address of memory region to be unmapped
+ */
+void rio_unmap_inb_region(struct rio_mport *mport, dma_addr_t lstart)
+{
+	unsigned long flags;
+	if (!mport->ops->unmap_inb)
+		return;
+	spin_lock_irqsave(&rio_mmap_lock, flags);
+	mport->ops->unmap_inb(mport, lstart);
+	spin_unlock_irqrestore(&rio_mmap_lock, flags);
+}
+EXPORT_SYMBOL_GPL(rio_unmap_inb_region);
+
+/**
  * rio_mport_get_physefb - Helper function that returns register offset
  *                      for Physical Layer Extended Features Block.
  * @port: Master port to issue transaction
@@ -1216,15 +1260,62 @@ static int __devinit rio_init(void)
 	return 0;
 }
 
+static struct workqueue_struct *rio_wq;
+
+struct rio_disc_work {
+	struct work_struct	work;
+	struct rio_mport	*mport;
+};
+
+static void __devinit disc_work_handler(struct work_struct *_work)
+{
+	struct rio_disc_work *work;
+
+	work = container_of(_work, struct rio_disc_work, work);
+	pr_debug("RIO: discovery work for mport %d %s\n",
+		 work->mport->id, work->mport->name);
+	rio_disc_mport(work->mport);
+
+	kfree(work);
+}
+
 int __devinit rio_init_mports(void)
 {
 	struct rio_mport *port;
+	struct rio_disc_work *work;
+	int no_disc = 0;
 
 	list_for_each_entry(port, &rio_mports, node) {
 		if (port->host_deviceid >= 0)
 			rio_enum_mport(port);
-		else
-			rio_disc_mport(port);
+		else if (!no_disc) {
+			if (!rio_wq) {
+				rio_wq = alloc_workqueue("riodisc", 0, 0);
+				if (!rio_wq) {
+					pr_err("RIO: unable allocate rio_wq\n");
+					no_disc = 1;
+					continue;
+				}
+			}
+
+			work = kzalloc(sizeof *work, GFP_KERNEL);
+			if (!work) {
+				pr_err("RIO: no memory for work struct\n");
+				no_disc = 1;
+				continue;
+			}
+
+			work->mport = port;
+			INIT_WORK(&work->work, disc_work_handler);
+			queue_work(rio_wq, &work->work);
+		}
+	}
+
+	if (rio_wq) {
+		pr_debug("RIO: flush discovery workqueue\n");
+		flush_workqueue(rio_wq);
+		pr_debug("RIO: flush discovery workqueue finished\n");
+		destroy_workqueue(rio_wq);
 	}
 
 	rio_init();
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index fabc99a75c65..e069f176a82d 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -19,7 +19,6 @@ if RTC_CLASS
 
 config RTC_HCTOSYS
 	bool "Set system time from RTC on startup and resume"
-	depends on RTC_CLASS = y
 	default y
 	help
 	  If you say yes here, the system time (wall clock) will be set using
@@ -51,7 +50,6 @@ config RTC_HCTOSYS_DEVICE
 
 config RTC_DEBUG
 	bool "RTC debug support"
-	depends on RTC_CLASS = y
 	help
 	  Say yes here to enable debugging support in the RTC framework
 	  and individual RTC drivers.
@@ -61,7 +59,6 @@ comment "RTC interfaces"
 config RTC_INTF_SYSFS
 	boolean "/sys/class/rtc/rtcN (sysfs)"
 	depends on SYSFS
-	default RTC_CLASS
 	help
 	  Say yes here if you want to use your RTCs using sysfs interfaces,
 	  /sys/class/rtc/rtc0 through /sys/.../rtcN.
@@ -69,19 +66,19 @@ config RTC_INTF_SYSFS
 	  If unsure, say Y.
 
 config RTC_INTF_PROC
-	boolean "/proc/driver/rtc (procfs for rtc0)"
+	boolean "/proc/driver/rtc (procfs for rtcN)"
 	depends on PROC_FS
-	default RTC_CLASS
 	help
-	  Say yes here if you want to use your first RTC through the proc
-	  interface, /proc/driver/rtc. Other RTCs will not be available
-	  through that API.
+	  Say yes here if you want to use your system clock RTC through
+	  the proc interface, /proc/driver/rtc.
+	  Other RTCs will not be available through that API.
+	  If there is no RTC for the system clock, then the first RTC(rtc0)
+	  is used by default.
 
 	  If unsure, say Y.
 
 config RTC_INTF_DEV
 	boolean "/dev/rtcN (character devices)"
-	default RTC_CLASS
 	help
 	  Say yes here if you want to use your RTCs using the /dev
 	  interfaces, which "udev" sets up as /dev/rtc0 through
@@ -127,7 +124,7 @@ if I2C
 
 config RTC_DRV_88PM860X
 	tristate "Marvell 88PM860x"
-	depends on RTC_CLASS && I2C && MFD_88PM860X
+	depends on I2C && MFD_88PM860X
 	help
 	  If you say yes here you get support for RTC function in Marvell
 	  88PM860x chips.
@@ -137,7 +134,7 @@ config RTC_DRV_88PM860X
 
 config RTC_DRV_88PM80X
 	tristate "Marvell 88PM80x"
-	depends on RTC_CLASS && I2C && MFD_88PM800
+	depends on I2C && MFD_88PM800
 	help
 	  If you say yes here you get support for RTC function in Marvell
 	  88PM80x chips.
@@ -165,7 +162,7 @@ config RTC_DRV_DS1307
 
 config RTC_DRV_DS1374
 	tristate "Dallas/Maxim DS1374"
-	depends on RTC_CLASS && I2C
+	depends on I2C
 	help
 	  If you say yes here you get support for Dallas Semiconductor
 	  DS1374 real-time clock chips. If an interrupt is associated
@@ -185,7 +182,7 @@ config RTC_DRV_DS1672
 
 config RTC_DRV_DS3232
 	tristate "Dallas/Maxim DS3232"
-	depends on RTC_CLASS && I2C
+	depends on I2C
 	help
 	  If you say yes here you get support for Dallas Semiconductor
 	  DS3232 real-time clock chips. If an interrupt is associated
@@ -203,6 +200,16 @@ config RTC_DRV_MAX6900
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-max6900.
 
+config RTC_DRV_MAX8907
+	tristate "Maxim MAX8907"
+	depends on MFD_MAX8907
+	help
+	  If you say yes here you will get support for the
+	  RTC of Maxim MAX8907 PMIC.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-max8907.
+
 config RTC_DRV_MAX8925
 	tristate "Maxim MAX8925"
 	depends on MFD_MAX8925
@@ -325,7 +332,7 @@ config RTC_DRV_TWL92330
 
 config RTC_DRV_TWL4030
 	tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
-	depends on RTC_CLASS && TWL4030_CORE
+	depends on TWL4030_CORE
 	help
 	  If you say yes here you get support for the RTC on the
 	  TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.
@@ -333,6 +340,26 @@ config RTC_DRV_TWL4030
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-twl.
 
+config RTC_DRV_TPS65910
+	tristate "TI TPS65910 RTC driver"
+	depends on RTC_CLASS && MFD_TPS65910
+	help
+	  If you say yes here you get support for the RTC on the
+	  TPS65910 chips.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-tps65910.
+
+config RTC_DRV_RC5T583
+	tristate "RICOH 5T583 RTC driver"
+	depends on MFD_RC5T583
+	help
+	  If you say yes here you get support for the RTC on the
+	  RICOH 5T583 chips.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-rc5t583.
+
 config RTC_DRV_S35390A
 	tristate "Seiko Instruments S-35390A"
 	select BITREVERSE
@@ -538,7 +565,6 @@ config RTC_DRV_DS1302
 
 config RTC_DRV_DS1511
 	tristate "Dallas DS1511"
-	depends on RTC_CLASS
 	help
 	  If you say yes here you get support for the
 	  Dallas DS1511 timekeeping/watchdog chip.
@@ -583,7 +609,6 @@ config RTC_DRV_EFI
 
 config RTC_DRV_STK17TA8
 	tristate "Simtek STK17TA8"
-	depends on RTC_CLASS
 	help
 	  If you say yes here you get support for the
 	  Simtek STK17TA8 timekeeping chip.
@@ -658,6 +683,15 @@ config RTC_DRV_V3020
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-v3020.
 
+config RTC_DRV_DS2404
+	tristate "Dallas DS2404"
+	help
+	  If you say yes here you get support for the
+	  Dallas DS2404 RTC chip.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-ds2404.
+
 config RTC_DRV_WM831X
 	tristate "Wolfson Microelectronics WM831x RTC"
 	depends on MFD_WM831X
@@ -704,6 +738,7 @@ config RTC_DRV_AB3100
 config RTC_DRV_AB8500
 	tristate "ST-Ericsson AB8500 RTC"
 	depends on AB8500_CORE
+	select RTC_INTF_DEV
 	select RTC_INTF_DEV_UIE_EMUL
 	help
 	  Select this to enable the ST-Ericsson AB8500 power management IC RTC
@@ -711,7 +746,7 @@ config RTC_DRV_AB8500
 
 config RTC_DRV_NUC900
 	tristate "NUC910/NUC920 RTC driver"
-	depends on RTC_CLASS && ARCH_W90X900
+	depends on ARCH_W90X900
 	help
 	  If you say yes here you get support for the RTC subsystem of the
 	  NUC910/NUC920 used in embedded systems.
@@ -731,7 +766,6 @@ config RTC_DRV_DAVINCI
 config RTC_DRV_IMXDI
 	tristate "Freescale IMX DryIce Real Time Clock"
 	depends on SOC_IMX25
-	depends on RTC_CLASS
 	help
 	   Support for Freescale IMX DryIce RTC
 
@@ -791,7 +825,7 @@ config RTC_DRV_SA1100
 
 config RTC_DRV_SH
 	tristate "SuperH On-Chip RTC"
-	depends on RTC_CLASS && SUPERH && HAVE_CLK
+	depends on SUPERH && HAVE_CLK
 	help
 	  Say Y here to enable support for the on-chip RTC found in
 	  most SuperH processors.
@@ -1023,7 +1057,6 @@ config RTC_DRV_MPC5121
 
 config RTC_DRV_JZ4740
 	tristate "Ingenic JZ4740 SoC"
-	depends on RTC_CLASS
 	depends on MACH_JZ4740
 	help
 	  If you say yes here you get support for the Ingenic JZ4740 SoC RTC
@@ -1053,7 +1086,7 @@ config RTC_DRV_PM8XXX
 
 config RTC_DRV_TEGRA
 	tristate "NVIDIA Tegra Internal RTC driver"
-	depends on RTC_CLASS && ARCH_TEGRA
+	depends on ARCH_TEGRA
 	help
 	  If you say yes here you get support for the
 	  Tegra 200 series internal RTC module.
@@ -1090,7 +1123,6 @@ config RTC_DRV_LOONGSON1
 config RTC_DRV_MXC
 	tristate "Freescale MXC Real Time Clock"
 	depends on ARCH_MXC
-	depends on RTC_CLASS
 	help
 	   If you say yes here you get support for the Freescale MXC
 	   RTC module.
@@ -1098,4 +1130,15 @@ config RTC_DRV_MXC
 	   This driver can also be built as a module, if so, the module
 	   will be called "rtc-mxc".
 
+config RTC_DRV_SNVS
+	tristate "Freescale SNVS RTC support"
+	depends on HAS_IOMEM
+	depends on OF
+	help
+	   If you say yes here you get support for the Freescale SNVS
+	   Low Power (LP) RTC module.
+
+	   This driver can also be built as a module, if so, the module
+	   will be called "rtc-snvs".
+
 endif # RTC_CLASS
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 0d5b2b66f90d..56297f0fd388 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -43,6 +43,7 @@ obj-$(CONFIG_RTC_DRV_DS1511)	+= rtc-ds1511.o
 obj-$(CONFIG_RTC_DRV_DS1553)	+= rtc-ds1553.o
 obj-$(CONFIG_RTC_DRV_DS1672)	+= rtc-ds1672.o
 obj-$(CONFIG_RTC_DRV_DS1742)	+= rtc-ds1742.o
+obj-$(CONFIG_RTC_DRV_DS2404)    += rtc-ds2404.o
 obj-$(CONFIG_RTC_DRV_DS3232)	+= rtc-ds3232.o
 obj-$(CONFIG_RTC_DRV_DS3234)	+= rtc-ds3234.o
 obj-$(CONFIG_RTC_DRV_EFI)	+= rtc-efi.o
@@ -64,6 +65,7 @@ obj-$(CONFIG_RTC_DRV_M48T59)	+= rtc-m48t59.o
 obj-$(CONFIG_RTC_DRV_M48T86)	+= rtc-m48t86.o
 obj-$(CONFIG_RTC_DRV_MXC)	+= rtc-mxc.o
 obj-$(CONFIG_RTC_DRV_MAX6900)	+= rtc-max6900.o
+obj-$(CONFIG_RTC_DRV_MAX8907)	+= rtc-max8907.o
 obj-$(CONFIG_RTC_DRV_MAX8925)	+= rtc-max8925.o
 obj-$(CONFIG_RTC_DRV_MAX8998)	+= rtc-max8998.o
 obj-$(CONFIG_RTC_DRV_MAX6902)	+= rtc-max6902.o
@@ -85,6 +87,7 @@ obj-$(CONFIG_RTC_DRV_PS3)	+= rtc-ps3.o
 obj-$(CONFIG_RTC_DRV_PUV3)	+= rtc-puv3.o
 obj-$(CONFIG_RTC_DRV_PXA)	+= rtc-pxa.o
 obj-$(CONFIG_RTC_DRV_R9701)	+= rtc-r9701.o
+obj-$(CONFIG_RTC_DRV_RC5T583)	+= rtc-rc5t583.o
 obj-$(CONFIG_RTC_DRV_RP5C01)	+= rtc-rp5c01.o
 obj-$(CONFIG_RTC_DRV_RS5C313)	+= rtc-rs5c313.o
 obj-$(CONFIG_RTC_DRV_RS5C348)	+= rtc-rs5c348.o
@@ -96,6 +99,7 @@ obj-$(CONFIG_RTC_DRV_S35390A)	+= rtc-s35390a.o
 obj-$(CONFIG_RTC_DRV_S3C)	+= rtc-s3c.o
 obj-$(CONFIG_RTC_DRV_SA1100)	+= rtc-sa1100.o
 obj-$(CONFIG_RTC_DRV_SH)	+= rtc-sh.o
+obj-$(CONFIG_RTC_DRV_SNVS)	+= rtc-snvs.o
 obj-$(CONFIG_RTC_DRV_SPEAR)	+= rtc-spear.o
 obj-$(CONFIG_RTC_DRV_STARFIRE)	+= rtc-starfire.o
 obj-$(CONFIG_RTC_DRV_STK17TA8)	+= rtc-stk17ta8.o
@@ -105,6 +109,7 @@ obj-$(CONFIG_RTC_DRV_TEGRA)	+= rtc-tegra.o
 obj-$(CONFIG_RTC_DRV_TEST)	+= rtc-test.o
 obj-$(CONFIG_RTC_DRV_TILE)	+= rtc-tile.o
 obj-$(CONFIG_RTC_DRV_TWL4030)	+= rtc-twl.o
+obj-$(CONFIG_RTC_DRV_TPS65910)	+= rtc-tps65910.o
 obj-$(CONFIG_RTC_DRV_TX4939)	+= rtc-tx4939.o
 obj-$(CONFIG_RTC_DRV_V3020)	+= rtc-v3020.o
 obj-$(CONFIG_RTC_DRV_VR41XX)	+= rtc-vr41xx.o
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index dc4c2748bbc3..f8a0aab218cb 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -31,8 +31,12 @@ static void rtc_device_release(struct device *dev)
 	kfree(rtc);
 }
 
-#if defined(CONFIG_PM) && defined(CONFIG_RTC_HCTOSYS_DEVICE)
+#ifdef CONFIG_RTC_HCTOSYS_DEVICE
+/* Result of the last RTC to system clock attempt. */
+int rtc_hctosys_ret = -ENODEV;
+#endif
 
+#if defined(CONFIG_PM) && defined(CONFIG_RTC_HCTOSYS_DEVICE)
 /*
  * On suspend(), measure the delta between one RTC and the
  * system's wall clock; restore it on resume().
@@ -84,6 +88,7 @@ static int rtc_resume(struct device *dev)
 	struct timespec		new_system, new_rtc;
 	struct timespec		sleep_time;
 
+	rtc_hctosys_ret = -ENODEV;
 	if (strcmp(dev_name(&rtc->dev), CONFIG_RTC_HCTOSYS_DEVICE) != 0)
 		return 0;
 
@@ -117,6 +122,7 @@ static int rtc_resume(struct device *dev)
 
 	if (sleep_time.tv_sec >= 0)
 		timekeeping_inject_sleeptime(&sleep_time);
+	rtc_hctosys_ret = 0;
 	return 0;
 }
 
@@ -238,6 +244,7 @@ void rtc_device_unregister(struct rtc_device *rtc)
 		rtc_proc_del_device(rtc);
 		device_unregister(&rtc->dev);
 		rtc->ops = NULL;
+		ida_simple_remove(&rtc_ida, rtc->id);
 		mutex_unlock(&rtc->ops_lock);
 		put_device(&rtc->dev);
 	}
diff --git a/drivers/rtc/hctosys.c b/drivers/rtc/hctosys.c
index bc90b091f195..4aa60d74004e 100644
--- a/drivers/rtc/hctosys.c
+++ b/drivers/rtc/hctosys.c
@@ -22,8 +22,6 @@
  * the best guess is to add 0.5s.
  */
 
-int rtc_hctosys_ret = -ENODEV;
-
 static int __init rtc_hctosys(void)
 {
 	int err = -ENODEV;
@@ -56,7 +54,7 @@ static int __init rtc_hctosys(void)
 
 	rtc_tm_to_time(&tm, &tv.tv_sec);
 
-	do_settimeofday(&tv);
+	err = do_settimeofday(&tv);
 
 	dev_info(rtc->dev.parent,
 		"setting system clock to "
diff --git a/drivers/rtc/rtc-at91sam9.c b/drivers/rtc/rtc-at91sam9.c
index 1dd61f402b04..2dfe7a2fb998 100644
--- a/drivers/rtc/rtc-at91sam9.c
+++ b/drivers/rtc/rtc-at91sam9.c
@@ -473,18 +473,7 @@ static struct platform_driver at91_rtc_driver = {
 	},
 };
 
-static int __init at91_rtc_init(void)
-{
-	return platform_driver_register(&at91_rtc_driver);
-}
-module_init(at91_rtc_init);
-
-static void __exit at91_rtc_exit(void)
-{
-	platform_driver_unregister(&at91_rtc_driver);
-}
-module_exit(at91_rtc_exit);
-
+module_platform_driver(at91_rtc_driver);
 
 MODULE_AUTHOR("Michel Benoit");
 MODULE_DESCRIPTION("RTC driver for Atmel AT91SAM9x");
diff --git a/drivers/rtc/rtc-coh901331.c b/drivers/rtc/rtc-coh901331.c
index 76b2156d3c62..c8115b83e5ab 100644
--- a/drivers/rtc/rtc-coh901331.c
+++ b/drivers/rtc/rtc-coh901331.c
@@ -276,8 +276,7 @@ static void coh901331_shutdown(struct platform_device *pdev)
 
 	clk_enable(rtap->clk);
 	writel(0, rtap->virtbase + COH901331_IRQ_MASK);
-	clk_disable(rtap->clk);
-	clk_unprepare(rtap->clk);
+	clk_disable_unprepare(rtap->clk);
 }
 
 static struct platform_driver coh901331_driver = {
diff --git a/drivers/rtc/rtc-ds1672.c b/drivers/rtc/rtc-ds1672.c
index 7fa67d0df172..45d65c0b3a85 100644
--- a/drivers/rtc/rtc-ds1672.c
+++ b/drivers/rtc/rtc-ds1672.c
@@ -37,8 +37,17 @@ static int ds1672_get_datetime(struct i2c_client *client, struct rtc_time *tm)
 	unsigned char buf[4];
 
 	struct i2c_msg msgs[] = {
-		{client->addr, 0, 1, &addr},	/* setup read ptr */
-		{client->addr, I2C_M_RD, 4, buf},	/* read date */
+		{/* setup read ptr */
+			.addr = client->addr,
+			.len = 1,
+			.buf = &addr
+		},
+		{/* read date */
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = 4,
+			.buf = buf
+		},
 	};
 
 	/* read date registers */
@@ -99,8 +108,17 @@ static int ds1672_get_control(struct i2c_client *client, u8 *status)
 	unsigned char addr = DS1672_REG_CONTROL;
 
 	struct i2c_msg msgs[] = {
-		{client->addr, 0, 1, &addr},	/* setup read ptr */
-		{client->addr, I2C_M_RD, 1, status},	/* read control */
+		{/* setup read ptr */
+			.addr = client->addr,
+			.len = 1,
+			.buf = &addr
+		},
+		{/* read control */
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = 1,
+			.buf = status
+		},
 	};
 
 	/* read control register */
diff --git a/drivers/rtc/rtc-ds2404.c b/drivers/rtc/rtc-ds2404.c
new file mode 100644
index 000000000000..5ea9df7c8c31
--- /dev/null
+++ b/drivers/rtc/rtc-ds2404.c
@@ -0,0 +1,303 @@
+/*
+ * Copyright (C) 2012 Sven Schnelle <svens@stackframe.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/rtc.h>
+#include <linux/types.h>
+#include <linux/bcd.h>
+#include <linux/rtc-ds2404.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+
+#include <linux/io.h>
+
+#define DS2404_STATUS_REG 0x200
+#define DS2404_CONTROL_REG 0x201
+#define DS2404_RTC_REG 0x202
+
+#define DS2404_WRITE_SCRATCHPAD_CMD 0x0f
+#define DS2404_READ_SCRATCHPAD_CMD 0xaa
+#define DS2404_COPY_SCRATCHPAD_CMD 0x55
+#define DS2404_READ_MEMORY_CMD 0xf0
+
+struct ds2404;
+
+struct ds2404_chip_ops {
+	int (*map_io)(struct ds2404 *chip, struct platform_device *pdev,
+		      struct ds2404_platform_data *pdata);
+	void (*unmap_io)(struct ds2404 *chip);
+};
+
+#define DS2404_RST	0
+#define DS2404_CLK	1
+#define DS2404_DQ	2
+
+struct ds2404_gpio {
+	const char *name;
+	unsigned int gpio;
+};
+
+struct ds2404 {
+	struct ds2404_gpio *gpio;
+	struct ds2404_chip_ops *ops;
+	struct rtc_device *rtc;
+};
+
+static struct ds2404_gpio ds2404_gpio[] = {
+	{ "RTC RST", 0 },
+	{ "RTC CLK", 0 },
+	{ "RTC DQ", 0 },
+};
+
+static int ds2404_gpio_map(struct ds2404 *chip, struct platform_device *pdev,
+			  struct ds2404_platform_data *pdata)
+{
+	int i, err;
+
+	ds2404_gpio[DS2404_RST].gpio = pdata->gpio_rst;
+	ds2404_gpio[DS2404_CLK].gpio = pdata->gpio_clk;
+	ds2404_gpio[DS2404_DQ].gpio = pdata->gpio_dq;
+
+	for (i = 0; i < ARRAY_SIZE(ds2404_gpio); i++) {
+		err = gpio_request(ds2404_gpio[i].gpio, ds2404_gpio[i].name);
+		if (err) {
+			printk(KERN_ERR "error mapping gpio %s: %d\n",
+				ds2404_gpio[i].name, err);
+			goto err_request;
+		}
+		if (i != DS2404_DQ)
+			gpio_direction_output(ds2404_gpio[i].gpio, 1);
+	}
+
+	chip->gpio = ds2404_gpio;
+	return 0;
+
+err_request:
+	while (--i >= 0)
+		gpio_free(ds2404_gpio[i].gpio);
+	return err;
+}
+
+static void ds2404_gpio_unmap(struct ds2404 *chip)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ds2404_gpio); i++)
+		gpio_free(ds2404_gpio[i].gpio);
+}
+
+static struct ds2404_chip_ops ds2404_gpio_ops = {
+	.map_io		= ds2404_gpio_map,
+	.unmap_io	= ds2404_gpio_unmap,
+};
+
+static void ds2404_reset(struct device *dev)
+{
+	gpio_set_value(ds2404_gpio[DS2404_RST].gpio, 0);
+	udelay(1000);
+	gpio_set_value(ds2404_gpio[DS2404_RST].gpio, 1);
+	gpio_set_value(ds2404_gpio[DS2404_CLK].gpio, 0);
+	gpio_direction_output(ds2404_gpio[DS2404_DQ].gpio, 0);
+	udelay(10);
+}
+
+static void ds2404_write_byte(struct device *dev, u8 byte)
+{
+	int i;
+
+	gpio_direction_output(ds2404_gpio[DS2404_DQ].gpio, 1);
+	for (i = 0; i < 8; i++) {
+		gpio_set_value(ds2404_gpio[DS2404_DQ].gpio, byte & (1 << i));
+		udelay(10);
+		gpio_set_value(ds2404_gpio[DS2404_CLK].gpio, 1);
+		udelay(10);
+		gpio_set_value(ds2404_gpio[DS2404_CLK].gpio, 0);
+		udelay(10);
+	}
+}
+
+static u8 ds2404_read_byte(struct device *dev)
+{
+	int i;
+	u8 ret = 0;
+
+	gpio_direction_input(ds2404_gpio[DS2404_DQ].gpio);
+
+	for (i = 0; i < 8; i++) {
+		gpio_set_value(ds2404_gpio[DS2404_CLK].gpio, 0);
+		udelay(10);
+		if (gpio_get_value(ds2404_gpio[DS2404_DQ].gpio))
+			ret |= 1 << i;
+		gpio_set_value(ds2404_gpio[DS2404_CLK].gpio, 1);
+		udelay(10);
+	}
+	return ret;
+}
+
+static void ds2404_read_memory(struct device *dev, u16 offset,
+			       int length, u8 *out)
+{
+	ds2404_reset(dev);
+	ds2404_write_byte(dev, DS2404_READ_MEMORY_CMD);
+	ds2404_write_byte(dev, offset & 0xff);
+	ds2404_write_byte(dev, (offset >> 8) & 0xff);
+	while (length--)
+		*out++ = ds2404_read_byte(dev);
+}
+
+static void ds2404_write_memory(struct device *dev, u16 offset,
+				int length, u8 *out)
+{
+	int i;
+	u8 ta01, ta02, es;
+
+	ds2404_reset(dev);
+	ds2404_write_byte(dev, DS2404_WRITE_SCRATCHPAD_CMD);
+	ds2404_write_byte(dev, offset & 0xff);
+	ds2404_write_byte(dev, (offset >> 8) & 0xff);
+
+	for (i = 0; i < length; i++)
+		ds2404_write_byte(dev, out[i]);
+
+	ds2404_reset(dev);
+	ds2404_write_byte(dev, DS2404_READ_SCRATCHPAD_CMD);
+
+	ta01 = ds2404_read_byte(dev);
+	ta02 = ds2404_read_byte(dev);
+	es = ds2404_read_byte(dev);
+
+	for (i = 0; i < length; i++) {
+		if (out[i] != ds2404_read_byte(dev)) {
+			printk(KERN_ERR "read invalid data\n");
+			return;
+		}
+	}
+
+	ds2404_reset(dev);
+	ds2404_write_byte(dev, DS2404_COPY_SCRATCHPAD_CMD);
+	ds2404_write_byte(dev, ta01);
+	ds2404_write_byte(dev, ta02);
+	ds2404_write_byte(dev, es);
+
+	gpio_direction_input(ds2404_gpio[DS2404_DQ].gpio);
+	while (gpio_get_value(ds2404_gpio[DS2404_DQ].gpio))
+		;
+}
+
+static void ds2404_enable_osc(struct device *dev)
+{
+	u8 in[1] = { 0x10 }; /* enable oscillator */
+	ds2404_write_memory(dev, 0x201, 1, in);
+}
+
+static int ds2404_read_time(struct device *dev, struct rtc_time *dt)
+{
+	unsigned long time = 0;
+
+	ds2404_read_memory(dev, 0x203, 4, (u8 *)&time);
+	time = le32_to_cpu(time);
+
+	rtc_time_to_tm(time, dt);
+	return rtc_valid_tm(dt);
+}
+
+static int ds2404_set_mmss(struct device *dev, unsigned long secs)
+{
+	u32 time = cpu_to_le32(secs);
+	ds2404_write_memory(dev, 0x203, 4, (u8 *)&time);
+	return 0;
+}
+
+static const struct rtc_class_ops ds2404_rtc_ops = {
+	.read_time	= ds2404_read_time,
+	.set_mmss	= ds2404_set_mmss,
+};
+
+static int rtc_probe(struct platform_device *pdev)
+{
+	struct ds2404_platform_data *pdata = pdev->dev.platform_data;
+	struct ds2404 *chip;
+	int retval = -EBUSY;
+
+	chip = kzalloc(sizeof(struct ds2404), GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+	chip->ops = &ds2404_gpio_ops;
+
+	retval = chip->ops->map_io(chip, pdev, pdata);
+	if (retval)
+		goto err_chip;
+
+	dev_info(&pdev->dev, "using GPIOs RST:%d, CLK:%d, DQ:%d\n",
+		 chip->gpio[DS2404_RST].gpio, chip->gpio[DS2404_CLK].gpio,
+		 chip->gpio[DS2404_DQ].gpio);
+
+	platform_set_drvdata(pdev, chip);
+
+	chip->rtc = rtc_device_register("ds2404",
+				&pdev->dev, &ds2404_rtc_ops, THIS_MODULE);
+	if (IS_ERR(chip->rtc)) {
+		retval = PTR_ERR(chip->rtc);
+		goto err_io;
+	}
+
+	ds2404_enable_osc(&pdev->dev);
+	return 0;
+
+err_io:
+	chip->ops->unmap_io(chip);
+err_chip:
+	kfree(chip);
+	return retval;
+}
+
+static int rtc_remove(struct platform_device *dev)
+{
+	struct ds2404 *chip = platform_get_drvdata(dev);
+	struct rtc_device *rtc = chip->rtc;
+
+	if (rtc)
+		rtc_device_unregister(rtc);
+
+	chip->ops->unmap_io(chip);
+	kfree(chip);
+
+	return 0;
+}
+
+static struct platform_driver rtc_device_driver = {
+	.probe	= rtc_probe,
+	.remove = rtc_remove,
+	.driver = {
+		.name	= "ds2404",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static __init int ds2404_init(void)
+{
+	return platform_driver_register(&rtc_device_driver);
+}
+
+static __exit void ds2404_exit(void)
+{
+	platform_driver_unregister(&rtc_device_driver);
+}
+
+module_init(ds2404_init);
+module_exit(ds2404_exit);
+
+MODULE_DESCRIPTION("DS2404 RTC");
+MODULE_AUTHOR("Sven Schnelle");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ds2404");
diff --git a/drivers/rtc/rtc-em3027.c b/drivers/rtc/rtc-em3027.c
index 0104ea7ebe50..f6c24ce35d36 100644
--- a/drivers/rtc/rtc-em3027.c
+++ b/drivers/rtc/rtc-em3027.c
@@ -49,8 +49,17 @@ static int em3027_get_time(struct device *dev, struct rtc_time *tm)
 	unsigned char buf[7];
 
 	struct i2c_msg msgs[] = {
-		{client->addr, 0, 1, &addr},		/* setup read addr */
-		{client->addr, I2C_M_RD, 7, buf},	/* read time/date */
+		{/* setup read addr */
+			.addr = client->addr,
+			.len = 1,
+			.buf = &addr
+		},
+		{/* read time/date */
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = 7,
+			.buf = buf
+		},
 	};
 
 	/* read time/date registers */
@@ -76,7 +85,9 @@ static int em3027_set_time(struct device *dev, struct rtc_time *tm)
 	unsigned char buf[8];
 
 	struct i2c_msg msg = {
-		client->addr, 0, 8, buf,	/* write time/date */
+		.addr = client->addr,
+		.len = 8,
+		.buf = buf,	/* write time/date */
 	};
 
 	buf[0] = EM3027_REG_WATCH_SEC;
diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
index dd2aeee6c66a..26c81f233606 100644
--- a/drivers/rtc/rtc-isl1208.c
+++ b/drivers/rtc/rtc-isl1208.c
@@ -68,9 +68,17 @@ isl1208_i2c_read_regs(struct i2c_client *client, u8 reg, u8 buf[],
 {
 	u8 reg_addr[1] = { reg };
 	struct i2c_msg msgs[2] = {
-		{client->addr, 0, sizeof(reg_addr), reg_addr}
-		,
-		{client->addr, I2C_M_RD, len, buf}
+		{
+			.addr = client->addr,
+			.len = sizeof(reg_addr),
+			.buf = reg_addr
+		},
+		{
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = len,
+			.buf = buf
+		}
 	};
 	int ret;
 
@@ -90,7 +98,11 @@ isl1208_i2c_set_regs(struct i2c_client *client, u8 reg, u8 const buf[],
 {
 	u8 i2c_buf[ISL1208_REG_USR2 + 2];
 	struct i2c_msg msgs[1] = {
-		{client->addr, 0, len + 1, i2c_buf}
+		{
+			.addr = client->addr,
+			.len = len + 1,
+			.buf = i2c_buf
+		}
 	};
 	int ret;
 
@@ -697,6 +709,7 @@ isl1208_remove(struct i2c_client *client)
 
 static const struct i2c_device_id isl1208_id[] = {
 	{ "isl1208", 0 },
+	{ "isl1218", 0 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, isl1208_id);
diff --git a/drivers/rtc/rtc-jz4740.c b/drivers/rtc/rtc-jz4740.c
index 05ab227eeff7..1224182d3eab 100644
--- a/drivers/rtc/rtc-jz4740.c
+++ b/drivers/rtc/rtc-jz4740.c
@@ -42,7 +42,7 @@ struct jz4740_rtc {
 
 	struct rtc_device *rtc;
 
-	unsigned int irq;
+	int irq;
 
 	spinlock_t lock;
 };
diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index 4e0f84af99a7..b885bcd08908 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -213,163 +213,14 @@ static int m41t80_rtc_set_time(struct device *dev, struct rtc_time *tm)
 	return m41t80_set_datetime(to_i2c_client(dev), tm);
 }
 
-static int m41t80_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	int rc;
-
-	rc = i2c_smbus_read_byte_data(client, M41T80_REG_ALARM_MON);
-	if (rc < 0)
-		goto err;
-
-	if (enabled)
-		rc |= M41T80_ALMON_AFE;
-	else
-		rc &= ~M41T80_ALMON_AFE;
-
-	if (i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON, rc) < 0)
-		goto err;
-
-	return 0;
-err:
-	return -EIO;
-}
-
-static int m41t80_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *t)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	u8 wbuf[1 + M41T80_ALARM_REG_SIZE];
-	u8 *buf = &wbuf[1];
-	u8 *reg = buf - M41T80_REG_ALARM_MON;
-	u8 dt_addr[1] = { M41T80_REG_ALARM_MON };
-	struct i2c_msg msgs_in[] = {
-		{
-			.addr	= client->addr,
-			.flags	= 0,
-			.len	= 1,
-			.buf	= dt_addr,
-		},
-		{
-			.addr	= client->addr,
-			.flags	= I2C_M_RD,
-			.len	= M41T80_ALARM_REG_SIZE,
-			.buf	= buf,
-		},
-	};
-	struct i2c_msg msgs[] = {
-		{
-			.addr	= client->addr,
-			.flags	= 0,
-			.len	= 1 + M41T80_ALARM_REG_SIZE,
-			.buf	= wbuf,
-		 },
-	};
-
-	if (i2c_transfer(client->adapter, msgs_in, 2) < 0) {
-		dev_err(&client->dev, "read error\n");
-		return -EIO;
-	}
-	reg[M41T80_REG_ALARM_MON] &= ~(0x1f | M41T80_ALMON_AFE);
-	reg[M41T80_REG_ALARM_DAY] = 0;
-	reg[M41T80_REG_ALARM_HOUR] &= ~(0x3f | 0x80);
-	reg[M41T80_REG_ALARM_MIN] = 0;
-	reg[M41T80_REG_ALARM_SEC] = 0;
-
-	wbuf[0] = M41T80_REG_ALARM_MON; /* offset into rtc's regs */
-	reg[M41T80_REG_ALARM_SEC] |= t->time.tm_sec >= 0 ?
-		bin2bcd(t->time.tm_sec) : 0x80;
-	reg[M41T80_REG_ALARM_MIN] |= t->time.tm_min >= 0 ?
-		bin2bcd(t->time.tm_min) : 0x80;
-	reg[M41T80_REG_ALARM_HOUR] |= t->time.tm_hour >= 0 ?
-		bin2bcd(t->time.tm_hour) : 0x80;
-	reg[M41T80_REG_ALARM_DAY] |= t->time.tm_mday >= 0 ?
-		bin2bcd(t->time.tm_mday) : 0x80;
-	if (t->time.tm_mon >= 0)
-		reg[M41T80_REG_ALARM_MON] |= bin2bcd(t->time.tm_mon + 1);
-	else
-		reg[M41T80_REG_ALARM_DAY] |= 0x40;
-
-	if (i2c_transfer(client->adapter, msgs, 1) != 1) {
-		dev_err(&client->dev, "write error\n");
-		return -EIO;
-	}
-
-	if (t->enabled) {
-		reg[M41T80_REG_ALARM_MON] |= M41T80_ALMON_AFE;
-		if (i2c_smbus_write_byte_data(client, M41T80_REG_ALARM_MON,
-					      reg[M41T80_REG_ALARM_MON]) < 0) {
-			dev_err(&client->dev, "write error\n");
-			return -EIO;
-		}
-	}
-	return 0;
-}
-
-static int m41t80_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *t)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	u8 buf[M41T80_ALARM_REG_SIZE + 1]; /* all alarm regs and flags */
-	u8 dt_addr[1] = { M41T80_REG_ALARM_MON };
-	u8 *reg = buf - M41T80_REG_ALARM_MON;
-	struct i2c_msg msgs[] = {
-		{
-			.addr	= client->addr,
-			.flags	= 0,
-			.len	= 1,
-			.buf	= dt_addr,
-		},
-		{
-			.addr	= client->addr,
-			.flags	= I2C_M_RD,
-			.len	= M41T80_ALARM_REG_SIZE + 1,
-			.buf	= buf,
-		},
-	};
-
-	if (i2c_transfer(client->adapter, msgs, 2) < 0) {
-		dev_err(&client->dev, "read error\n");
-		return -EIO;
-	}
-	t->time.tm_sec = -1;
-	t->time.tm_min = -1;
-	t->time.tm_hour = -1;
-	t->time.tm_mday = -1;
-	t->time.tm_mon = -1;
-	if (!(reg[M41T80_REG_ALARM_SEC] & 0x80))
-		t->time.tm_sec = bcd2bin(reg[M41T80_REG_ALARM_SEC] & 0x7f);
-	if (!(reg[M41T80_REG_ALARM_MIN] & 0x80))
-		t->time.tm_min = bcd2bin(reg[M41T80_REG_ALARM_MIN] & 0x7f);
-	if (!(reg[M41T80_REG_ALARM_HOUR] & 0x80))
-		t->time.tm_hour = bcd2bin(reg[M41T80_REG_ALARM_HOUR] & 0x3f);
-	if (!(reg[M41T80_REG_ALARM_DAY] & 0x80))
-		t->time.tm_mday = bcd2bin(reg[M41T80_REG_ALARM_DAY] & 0x3f);
-	if (!(reg[M41T80_REG_ALARM_DAY] & 0x40))
-		t->time.tm_mon = bcd2bin(reg[M41T80_REG_ALARM_MON] & 0x1f) - 1;
-	t->time.tm_year = -1;
-	t->time.tm_wday = -1;
-	t->time.tm_yday = -1;
-	t->time.tm_isdst = -1;
-	t->enabled = !!(reg[M41T80_REG_ALARM_MON] & M41T80_ALMON_AFE);
-	t->pending = !!(reg[M41T80_REG_FLAGS] & M41T80_FLAGS_AF);
-	return 0;
-}
-
+/*
+ * XXX - m41t80 alarm functionality is reported broken.
+ * until it is fixed, don't register alarm functions.
+ */
 static struct rtc_class_ops m41t80_rtc_ops = {
 	.read_time = m41t80_rtc_read_time,
 	.set_time = m41t80_rtc_set_time,
-	/*
-	 * XXX - m41t80 alarm functionality is reported broken.
-	 * until it is fixed, don't register alarm functions.
-	 *
-	.read_alarm = m41t80_rtc_read_alarm,
-	.set_alarm = m41t80_rtc_set_alarm,
-	*/
 	.proc = m41t80_rtc_proc,
-	/*
-	 * See above comment on broken alarm
-	 *
-	.alarm_irq_enable = m41t80_rtc_alarm_irq_enable,
-	*/
 };
 
 #if defined(CONFIG_RTC_INTF_SYSFS) || defined(CONFIG_RTC_INTF_SYSFS_MODULE)
diff --git a/drivers/rtc/rtc-max8907.c b/drivers/rtc/rtc-max8907.c
new file mode 100644
index 000000000000..e094ffa434f8
--- /dev/null
+++ b/drivers/rtc/rtc-max8907.c
@@ -0,0 +1,244 @@
+/*
+ * RTC driver for Maxim MAX8907
+ *
+ * Copyright (c) 2011-2012, NVIDIA Corporation.
+ *
+ * Based on drivers/rtc/rtc-max8925.c,
+ * Copyright (C) 2009-2010 Marvell International Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/bcd.h>
+#include <linux/i2c.h>
+#include <linux/mfd/max8907.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/rtc.h>
+#include <linux/slab.h>
+
+enum {
+	RTC_SEC = 0,
+	RTC_MIN,
+	RTC_HOUR,
+	RTC_WEEKDAY,
+	RTC_DATE,
+	RTC_MONTH,
+	RTC_YEAR1,
+	RTC_YEAR2,
+};
+
+#define TIME_NUM			8
+#define ALARM_1SEC			(1 << 7)
+#define HOUR_12				(1 << 7)
+#define HOUR_AM_PM			(1 << 5)
+#define ALARM0_IRQ			(1 << 3)
+#define ALARM1_IRQ			(1 << 2)
+#define ALARM0_STATUS			(1 << 2)
+#define ALARM1_STATUS			(1 << 1)
+
+struct max8907_rtc {
+	struct max8907		*max8907;
+	struct regmap		*regmap;
+	struct rtc_device	*rtc_dev;
+	int			irq;
+};
+
+static irqreturn_t max8907_irq_handler(int irq, void *data)
+{
+	struct max8907_rtc *rtc = data;
+
+	regmap_update_bits(rtc->regmap, MAX8907_REG_ALARM0_CNTL, 0x7f, 0);
+
+	rtc_update_irq(rtc->rtc_dev, 1, RTC_IRQF | RTC_AF);
+
+	return IRQ_HANDLED;
+}
+
+static void regs_to_tm(u8 *regs, struct rtc_time *tm)
+{
+	tm->tm_year = bcd2bin(regs[RTC_YEAR2]) * 100 +
+		bcd2bin(regs[RTC_YEAR1]) - 1900;
+	tm->tm_mon = bcd2bin(regs[RTC_MONTH] & 0x1f) - 1;
+	tm->tm_mday = bcd2bin(regs[RTC_DATE] & 0x3f);
+	tm->tm_wday = (regs[RTC_WEEKDAY] & 0x07) - 1;
+	if (regs[RTC_HOUR] & HOUR_12) {
+		tm->tm_hour = bcd2bin(regs[RTC_HOUR] & 0x01f);
+		if (tm->tm_hour == 12)
+			tm->tm_hour = 0;
+		if (regs[RTC_HOUR] & HOUR_AM_PM)
+			tm->tm_hour += 12;
+	} else {
+		tm->tm_hour = bcd2bin(regs[RTC_HOUR] & 0x03f);
+	}
+	tm->tm_min = bcd2bin(regs[RTC_MIN] & 0x7f);
+	tm->tm_sec = bcd2bin(regs[RTC_SEC] & 0x7f);
+}
+
+static void tm_to_regs(struct rtc_time *tm, u8 *regs)
+{
+	u8 high, low;
+
+	high = (tm->tm_year + 1900) / 100;
+	low = tm->tm_year % 100;
+	regs[RTC_YEAR2] = bin2bcd(high);
+	regs[RTC_YEAR1] = bin2bcd(low);
+	regs[RTC_MONTH] = bin2bcd(tm->tm_mon + 1);
+	regs[RTC_DATE] = bin2bcd(tm->tm_mday);
+	regs[RTC_WEEKDAY] = tm->tm_wday + 1;
+	regs[RTC_HOUR] = bin2bcd(tm->tm_hour);
+	regs[RTC_MIN] = bin2bcd(tm->tm_min);
+	regs[RTC_SEC] = bin2bcd(tm->tm_sec);
+}
+
+static int max8907_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+	struct max8907_rtc *rtc = dev_get_drvdata(dev);
+	u8 regs[TIME_NUM];
+	int ret;
+
+	ret = regmap_bulk_read(rtc->regmap, MAX8907_REG_RTC_SEC, regs,
+			       TIME_NUM);
+	if (ret < 0)
+		return ret;
+
+	regs_to_tm(regs, tm);
+
+	return 0;
+}
+
+static int max8907_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+	struct max8907_rtc *rtc = dev_get_drvdata(dev);
+	u8 regs[TIME_NUM];
+
+	tm_to_regs(tm, regs);
+
+	return regmap_bulk_write(rtc->regmap, MAX8907_REG_RTC_SEC, regs,
+				 TIME_NUM);
+}
+
+static int max8907_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	struct max8907_rtc *rtc = dev_get_drvdata(dev);
+	u8 regs[TIME_NUM];
+	unsigned int val;
+	int ret;
+
+	ret = regmap_bulk_read(rtc->regmap, MAX8907_REG_ALARM0_SEC, regs,
+			       TIME_NUM);
+	if (ret < 0)
+		return ret;
+
+	regs_to_tm(regs, &alrm->time);
+
+	ret = regmap_read(rtc->regmap, MAX8907_REG_ALARM0_CNTL, &val);
+	if (ret < 0)
+		return ret;
+
+	alrm->enabled = !!(val & 0x7f);
+
+	return 0;
+}
+
+static int max8907_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	struct max8907_rtc *rtc = dev_get_drvdata(dev);
+	u8 regs[TIME_NUM];
+	int ret;
+
+	tm_to_regs(&alrm->time, regs);
+
+	/* Disable alarm while we update the target time */
+	ret = regmap_update_bits(rtc->regmap, MAX8907_REG_ALARM0_CNTL, 0x7f, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = regmap_bulk_write(rtc->regmap, MAX8907_REG_ALARM0_SEC, regs,
+				TIME_NUM);
+	if (ret < 0)
+		return ret;
+
+	if (alrm->enabled)
+		ret = regmap_update_bits(rtc->regmap, MAX8907_REG_ALARM0_CNTL,
+					 0x7f, 0x7f);
+
+	return ret;
+}
+
+static const struct rtc_class_ops max8907_rtc_ops = {
+	.read_time	= max8907_rtc_read_time,
+	.set_time	= max8907_rtc_set_time,
+	.read_alarm	= max8907_rtc_read_alarm,
+	.set_alarm	= max8907_rtc_set_alarm,
+};
+
+static int __devinit max8907_rtc_probe(struct platform_device *pdev)
+{
+	struct max8907 *max8907 = dev_get_drvdata(pdev->dev.parent);
+	struct max8907_rtc *rtc;
+	int ret;
+
+	rtc = devm_kzalloc(&pdev->dev, sizeof(*rtc), GFP_KERNEL);
+	if (!rtc)
+		return -ENOMEM;
+	platform_set_drvdata(pdev, rtc);
+
+	rtc->max8907 = max8907;
+	rtc->regmap = max8907->regmap_rtc;
+
+	rtc->rtc_dev = rtc_device_register("max8907-rtc", &pdev->dev,
+					&max8907_rtc_ops, THIS_MODULE);
+	if (IS_ERR(rtc->rtc_dev)) {
+		ret = PTR_ERR(rtc->rtc_dev);
+		dev_err(&pdev->dev, "Failed to register RTC device: %d\n", ret);
+		return ret;
+	}
+
+	rtc->irq = regmap_irq_get_virq(max8907->irqc_rtc,
+				       MAX8907_IRQ_RTC_ALARM0);
+	if (rtc->irq < 0) {
+		ret = rtc->irq;
+		goto err_unregister;
+	}
+
+	ret = request_threaded_irq(rtc->irq, NULL, max8907_irq_handler,
+				   IRQF_ONESHOT, "max8907-alarm0", rtc);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Failed to request IRQ%d: %d\n",
+			rtc->irq, ret);
+		goto err_unregister;
+	}
+
+	return 0;
+
+err_unregister:
+	rtc_device_unregister(rtc->rtc_dev);
+	return ret;
+}
+
+static int __devexit max8907_rtc_remove(struct platform_device *pdev)
+{
+	struct max8907_rtc *rtc = platform_get_drvdata(pdev);
+
+	free_irq(rtc->irq, rtc);
+	rtc_device_unregister(rtc->rtc_dev);
+
+	return 0;
+}
+
+static struct platform_driver max8907_rtc_driver = {
+	.driver = {
+		.name = "max8907-rtc",
+		.owner = THIS_MODULE,
+	},
+	.probe = max8907_rtc_probe,
+	.remove = __devexit_p(max8907_rtc_remove),
+};
+module_platform_driver(max8907_rtc_driver);
+
+MODULE_DESCRIPTION("Maxim MAX8907 RTC driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index e3e50d69baf8..cd0106293a49 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -343,7 +343,7 @@ static struct rtc_class_ops mxc_rtc_ops = {
 	.alarm_irq_enable	= mxc_rtc_alarm_irq_enable,
 };
 
-static int __init mxc_rtc_probe(struct platform_device *pdev)
+static int __devinit mxc_rtc_probe(struct platform_device *pdev)
 {
 	struct resource *res;
 	struct rtc_device *rtc;
@@ -367,14 +367,14 @@ static int __init mxc_rtc_probe(struct platform_device *pdev)
 	pdata->ioaddr = devm_ioremap(&pdev->dev, res->start,
 				     resource_size(res));
 
-	pdata->clk = clk_get(&pdev->dev, "rtc");
+	pdata->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(pdata->clk)) {
 		dev_err(&pdev->dev, "unable to get clock!\n");
 		ret = PTR_ERR(pdata->clk);
 		goto exit_free_pdata;
 	}
 
-	clk_enable(pdata->clk);
+	clk_prepare_enable(pdata->clk);
 	rate = clk_get_rate(pdata->clk);
 
 	if (rate == 32768)
@@ -426,22 +426,20 @@ static int __init mxc_rtc_probe(struct platform_device *pdev)
 exit_clr_drvdata:
 	platform_set_drvdata(pdev, NULL);
 exit_put_clk:
-	clk_disable(pdata->clk);
-	clk_put(pdata->clk);
+	clk_disable_unprepare(pdata->clk);
 
 exit_free_pdata:
 
 	return ret;
 }
 
-static int __exit mxc_rtc_remove(struct platform_device *pdev)
+static int __devexit mxc_rtc_remove(struct platform_device *pdev)
 {
 	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
 
 	rtc_device_unregister(pdata->rtc);
 
-	clk_disable(pdata->clk);
-	clk_put(pdata->clk);
+	clk_disable_unprepare(pdata->clk);
 	platform_set_drvdata(pdev, NULL);
 
 	return 0;
@@ -482,21 +480,11 @@ static struct platform_driver mxc_rtc_driver = {
 #endif
 		   .owner	= THIS_MODULE,
 	},
-	.remove		= __exit_p(mxc_rtc_remove),
+	.probe = mxc_rtc_probe,
+	.remove = __devexit_p(mxc_rtc_remove),
 };
 
-static int __init mxc_rtc_init(void)
-{
-	return platform_driver_probe(&mxc_rtc_driver, mxc_rtc_probe);
-}
-
-static void __exit mxc_rtc_exit(void)
-{
-	platform_driver_unregister(&mxc_rtc_driver);
-}
-
-module_init(mxc_rtc_init);
-module_exit(mxc_rtc_exit);
+module_platform_driver(mxc_rtc_driver)
 
 MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
 MODULE_DESCRIPTION("RTC driver for Freescale MXC");
diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c
index c2fe426a6ef2..98e3a2b681e6 100644
--- a/drivers/rtc/rtc-pcf8563.c
+++ b/drivers/rtc/rtc-pcf8563.c
@@ -78,8 +78,17 @@ static int pcf8563_get_datetime(struct i2c_client *client, struct rtc_time *tm)
 	unsigned char buf[13] = { PCF8563_REG_ST1 };
 
 	struct i2c_msg msgs[] = {
-		{ client->addr, 0, 1, buf },	/* setup read ptr */
-		{ client->addr, I2C_M_RD, 13, buf },	/* read status + date */
+		{/* setup read ptr */
+			.addr = client->addr,
+			.len = 1,
+			.buf = buf
+		},
+		{/* read status + date */
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = 13,
+			.buf = buf
+		},
 	};
 
 	/* read registers */
diff --git a/drivers/rtc/rtc-proc.c b/drivers/rtc/rtc-proc.c
index 0a59fda5c09d..e96236ac2e78 100644
--- a/drivers/rtc/rtc-proc.c
+++ b/drivers/rtc/rtc-proc.c
@@ -18,6 +18,26 @@
 
 #include "rtc-core.h"
 
+#define NAME_SIZE	10
+
+#if defined(CONFIG_RTC_HCTOSYS_DEVICE)
+static bool is_rtc_hctosys(struct rtc_device *rtc)
+{
+	int size;
+	char name[NAME_SIZE];
+
+	size = scnprintf(name, NAME_SIZE, "rtc%d", rtc->id);
+	if (size > NAME_SIZE)
+		return false;
+
+	return !strncmp(name, CONFIG_RTC_HCTOSYS_DEVICE, NAME_SIZE);
+}
+#else
+static bool is_rtc_hctosys(struct rtc_device *rtc)
+{
+	return (rtc->id == 0);
+}
+#endif
 
 static int rtc_proc_show(struct seq_file *seq, void *offset)
 {
@@ -117,12 +137,12 @@ static const struct file_operations rtc_proc_fops = {
 
 void rtc_proc_add_device(struct rtc_device *rtc)
 {
-	if (rtc->id == 0)
+	if (is_rtc_hctosys(rtc))
 		proc_create_data("driver/rtc", 0, NULL, &rtc_proc_fops, rtc);
 }
 
 void rtc_proc_del_device(struct rtc_device *rtc)
 {
-	if (rtc->id == 0)
+	if (is_rtc_hctosys(rtc))
 		remove_proc_entry("driver/rtc", NULL);
 }
diff --git a/drivers/rtc/rtc-rc5t583.c b/drivers/rtc/rtc-rc5t583.c
new file mode 100644
index 000000000000..cdb140c29c56
--- /dev/null
+++ b/drivers/rtc/rtc-rc5t583.c
@@ -0,0 +1,331 @@
+/*
+ * rtc-rc5t583.c -- RICOH RC5T583 Real Time Clock
+ *
+ * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
+ * Author: Venu Byravarasu <vbyravarasu@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/rtc.h>
+#include <linux/bcd.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/rc5t583.h>
+
+struct rc5t583_rtc {
+	struct rtc_device	*rtc;
+	/* To store the list of enabled interrupts, during system suspend */
+	u32 irqen;
+};
+
+/* Total number of RTC registers needed to set time*/
+#define NUM_TIME_REGS	(RC5T583_RTC_YEAR - RC5T583_RTC_SEC + 1)
+
+/* Total number of RTC registers needed to set Y-Alarm*/
+#define NUM_YAL_REGS	(RC5T583_RTC_AY_YEAR - RC5T583_RTC_AY_MIN + 1)
+
+/* Set Y-Alarm interrupt */
+#define SET_YAL BIT(5)
+
+/* Get Y-Alarm interrupt status*/
+#define GET_YAL_STATUS BIT(3)
+
+static int rc5t583_rtc_alarm_irq_enable(struct device *dev, unsigned enabled)
+{
+	struct rc5t583 *rc5t583 = dev_get_drvdata(dev->parent);
+	u8 val;
+
+	/* Set Y-Alarm, based on 'enabled' */
+	val = enabled ? SET_YAL : 0;
+
+	return regmap_update_bits(rc5t583->regmap, RC5T583_RTC_CTL1, SET_YAL,
+		val);
+}
+
+/*
+ * Gets current rc5t583 RTC time and date parameters.
+ *
+ * The RTC's time/alarm representation is not what gmtime(3) requires
+ * Linux to use:
+ *
+ *  - Months are 1..12 vs Linux 0-11
+ *  - Years are 0..99 vs Linux 1900..N (we assume 21st century)
+ */
+static int rc5t583_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+	struct rc5t583 *rc5t583 = dev_get_drvdata(dev->parent);
+	u8 rtc_data[NUM_TIME_REGS];
+	int ret;
+
+	ret = regmap_bulk_read(rc5t583->regmap, RC5T583_RTC_SEC, rtc_data,
+		NUM_TIME_REGS);
+	if (ret < 0) {
+		dev_err(dev, "RTC read time failed with err:%d\n", ret);
+		return ret;
+	}
+
+	tm->tm_sec = bcd2bin(rtc_data[0]);
+	tm->tm_min = bcd2bin(rtc_data[1]);
+	tm->tm_hour = bcd2bin(rtc_data[2]);
+	tm->tm_wday = bcd2bin(rtc_data[3]);
+	tm->tm_mday = bcd2bin(rtc_data[4]);
+	tm->tm_mon = bcd2bin(rtc_data[5]) - 1;
+	tm->tm_year = bcd2bin(rtc_data[6]) + 100;
+
+	return ret;
+}
+
+static int rc5t583_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+	struct rc5t583 *rc5t583 = dev_get_drvdata(dev->parent);
+	unsigned char rtc_data[NUM_TIME_REGS];
+	int ret;
+
+	rtc_data[0] = bin2bcd(tm->tm_sec);
+	rtc_data[1] = bin2bcd(tm->tm_min);
+	rtc_data[2] = bin2bcd(tm->tm_hour);
+	rtc_data[3] = bin2bcd(tm->tm_wday);
+	rtc_data[4] = bin2bcd(tm->tm_mday);
+	rtc_data[5] = bin2bcd(tm->tm_mon + 1);
+	rtc_data[6] = bin2bcd(tm->tm_year - 100);
+
+	ret = regmap_bulk_write(rc5t583->regmap, RC5T583_RTC_SEC, rtc_data,
+		NUM_TIME_REGS);
+	if (ret < 0) {
+		dev_err(dev, "RTC set time failed with error %d\n", ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int rc5t583_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)
+{
+	struct rc5t583 *rc5t583 = dev_get_drvdata(dev->parent);
+	unsigned char alarm_data[NUM_YAL_REGS];
+	u32 interrupt_enable;
+	int ret;
+
+	ret = regmap_bulk_read(rc5t583->regmap, RC5T583_RTC_AY_MIN, alarm_data,
+		NUM_YAL_REGS);
+	if (ret < 0) {
+		dev_err(dev, "rtc_read_alarm error %d\n", ret);
+		return ret;
+	}
+
+	alm->time.tm_min = bcd2bin(alarm_data[0]);
+	alm->time.tm_hour = bcd2bin(alarm_data[1]);
+	alm->time.tm_mday = bcd2bin(alarm_data[2]);
+	alm->time.tm_mon = bcd2bin(alarm_data[3]) - 1;
+	alm->time.tm_year = bcd2bin(alarm_data[4]) + 100;
+
+	ret = regmap_read(rc5t583->regmap, RC5T583_RTC_CTL1, &interrupt_enable);
+	if (ret < 0)
+		return ret;
+
+	/* check if YALE is set */
+	if (interrupt_enable & SET_YAL)
+		alm->enabled = 1;
+
+	return ret;
+}
+
+static int rc5t583_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
+{
+	struct rc5t583 *rc5t583 = dev_get_drvdata(dev->parent);
+	unsigned char alarm_data[NUM_YAL_REGS];
+	int ret;
+
+	ret = rc5t583_rtc_alarm_irq_enable(dev, 0);
+	if (ret)
+		return ret;
+
+	alarm_data[0] = bin2bcd(alm->time.tm_min);
+	alarm_data[1] = bin2bcd(alm->time.tm_hour);
+	alarm_data[2] = bin2bcd(alm->time.tm_mday);
+	alarm_data[3] = bin2bcd(alm->time.tm_mon + 1);
+	alarm_data[4] = bin2bcd(alm->time.tm_year - 100);
+
+	ret = regmap_bulk_write(rc5t583->regmap, RC5T583_RTC_AY_MIN, alarm_data,
+		NUM_YAL_REGS);
+	if (ret) {
+		dev_err(dev, "rtc_set_alarm error %d\n", ret);
+		return ret;
+	}
+
+	if (alm->enabled)
+		ret = rc5t583_rtc_alarm_irq_enable(dev, 1);
+
+	return ret;
+}
+
+static irqreturn_t rc5t583_rtc_interrupt(int irq, void *rtc)
+{
+	struct device *dev = rtc;
+	struct rc5t583 *rc5t583 = dev_get_drvdata(dev->parent);
+	struct rc5t583_rtc *rc5t583_rtc = dev_get_drvdata(dev);
+	unsigned long events = 0;
+	int ret;
+	u32 rtc_reg;
+
+	ret = regmap_read(rc5t583->regmap, RC5T583_RTC_CTL2, &rtc_reg);
+	if (ret < 0)
+		return IRQ_NONE;
+
+	if (rtc_reg & GET_YAL_STATUS) {
+		events = RTC_IRQF | RTC_AF;
+		/* clear pending Y-alarm interrupt bit */
+		rtc_reg &= ~GET_YAL_STATUS;
+	}
+
+	ret = regmap_write(rc5t583->regmap, RC5T583_RTC_CTL2, rtc_reg);
+	if (ret)
+		return IRQ_NONE;
+
+	/* Notify RTC core on event */
+	rtc_update_irq(rc5t583_rtc->rtc, 1, events);
+
+	return IRQ_HANDLED;
+}
+
+static const struct rtc_class_ops rc5t583_rtc_ops = {
+	.read_time	= rc5t583_rtc_read_time,
+	.set_time	= rc5t583_rtc_set_time,
+	.read_alarm	= rc5t583_rtc_read_alarm,
+	.set_alarm	= rc5t583_rtc_set_alarm,
+	.alarm_irq_enable = rc5t583_rtc_alarm_irq_enable,
+};
+
+static int __devinit rc5t583_rtc_probe(struct platform_device *pdev)
+{
+	struct rc5t583 *rc5t583 = dev_get_drvdata(pdev->dev.parent);
+	struct rc5t583_rtc *ricoh_rtc;
+	struct rc5t583_platform_data *pmic_plat_data;
+	int ret;
+	int irq;
+
+	ricoh_rtc = devm_kzalloc(&pdev->dev, sizeof(struct rc5t583_rtc),
+			GFP_KERNEL);
+	if (!ricoh_rtc)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, ricoh_rtc);
+
+	/* Clear pending interrupts */
+	ret = regmap_write(rc5t583->regmap, RC5T583_RTC_CTL2, 0);
+	if (ret < 0)
+		return ret;
+
+	/* clear RTC Adjust register */
+	ret = regmap_write(rc5t583->regmap, RC5T583_RTC_ADJ, 0);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "unable to program rtc_adjust reg\n");
+		return -EBUSY;
+	}
+
+	pmic_plat_data = dev_get_platdata(rc5t583->dev);
+	irq = pmic_plat_data->irq_base;
+	if (irq <= 0) {
+		dev_warn(&pdev->dev, "Wake up is not possible as irq = %d\n",
+			irq);
+		return ret;
+	}
+
+	irq += RC5T583_IRQ_YALE;
+	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+		rc5t583_rtc_interrupt, IRQF_TRIGGER_LOW,
+		"rtc-rc5t583", &pdev->dev);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "IRQ is not free.\n");
+		return ret;
+	}
+	device_init_wakeup(&pdev->dev, 1);
+
+	ricoh_rtc->rtc = rtc_device_register(pdev->name, &pdev->dev,
+		&rc5t583_rtc_ops, THIS_MODULE);
+	if (IS_ERR(ricoh_rtc->rtc)) {
+		ret = PTR_ERR(ricoh_rtc->rtc);
+		dev_err(&pdev->dev, "RTC device register: err %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+/*
+ * Disable rc5t583 RTC interrupts.
+ * Sets status flag to free.
+ */
+static int __devexit rc5t583_rtc_remove(struct platform_device *pdev)
+{
+	struct rc5t583_rtc *rc5t583_rtc = dev_get_drvdata(&pdev->dev);
+
+	rc5t583_rtc_alarm_irq_enable(&rc5t583_rtc->rtc->dev, 0);
+
+	rtc_device_unregister(rc5t583_rtc->rtc);
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+
+static int rc5t583_rtc_suspend(struct device *dev)
+{
+	struct rc5t583 *rc5t583 = dev_get_drvdata(dev->parent);
+	struct rc5t583_rtc *rc5t583_rtc = dev_get_drvdata(dev);
+	int ret;
+
+	/* Store current list of enabled interrupts*/
+	ret = regmap_read(rc5t583->regmap, RC5T583_RTC_CTL1,
+		&rc5t583_rtc->irqen);
+	return ret;
+}
+
+static int rc5t583_rtc_resume(struct device *dev)
+{
+	struct rc5t583 *rc5t583 = dev_get_drvdata(dev->parent);
+	struct rc5t583_rtc *rc5t583_rtc = dev_get_drvdata(dev);
+
+	/* Restore list of enabled interrupts before suspend */
+	return regmap_write(rc5t583->regmap, RC5T583_RTC_CTL1,
+		rc5t583_rtc->irqen);
+}
+
+static const struct dev_pm_ops rc5t583_rtc_pm_ops = {
+	.suspend	= rc5t583_rtc_suspend,
+	.resume		= rc5t583_rtc_resume,
+};
+
+#define DEV_PM_OPS     (&rc5t583_rtc_pm_ops)
+#else
+#define DEV_PM_OPS     NULL
+#endif
+
+static struct platform_driver rc5t583_rtc_driver = {
+	.probe		= rc5t583_rtc_probe,
+	.remove		= __devexit_p(rc5t583_rtc_remove),
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= "rtc-rc5t583",
+		.pm	= DEV_PM_OPS,
+	},
+};
+
+module_platform_driver(rc5t583_rtc_driver);
+MODULE_ALIAS("platform:rtc-rc5t583");
+MODULE_AUTHOR("Venu Byravarasu <vbyravarasu@nvidia.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/rtc/rtc-rs5c372.c b/drivers/rtc/rtc-rs5c372.c
index fb4842c3544e..76f565ae384d 100644
--- a/drivers/rtc/rtc-rs5c372.c
+++ b/drivers/rtc/rtc-rs5c372.c
@@ -104,7 +104,12 @@ static int rs5c_get_regs(struct rs5c372 *rs5c)
 {
 	struct i2c_client	*client = rs5c->client;
 	struct i2c_msg		msgs[] = {
-		{ client->addr, I2C_M_RD, sizeof rs5c->buf, rs5c->buf },
+		{
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = sizeof(rs5c->buf),
+			.buf = rs5c->buf
+		},
 	};
 
 	/* This implements the third reading method from the datasheet, using
diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c
index c9562ceedef3..8a092325188d 100644
--- a/drivers/rtc/rtc-s35390a.c
+++ b/drivers/rtc/rtc-s35390a.c
@@ -19,6 +19,8 @@
 #define S35390A_CMD_STATUS1	0
 #define S35390A_CMD_STATUS2	1
 #define S35390A_CMD_TIME1	2
+#define S35390A_CMD_TIME2	3
+#define S35390A_CMD_INT2_REG1	5
 
 #define S35390A_BYTE_YEAR	0
 #define S35390A_BYTE_MONTH	1
@@ -28,12 +30,23 @@
 #define S35390A_BYTE_MINS	5
 #define S35390A_BYTE_SECS	6
 
+#define S35390A_ALRM_BYTE_WDAY	0
+#define S35390A_ALRM_BYTE_HOURS	1
+#define S35390A_ALRM_BYTE_MINS	2
+
 #define S35390A_FLAG_POC	0x01
 #define S35390A_FLAG_BLD	0x02
 #define S35390A_FLAG_24H	0x40
 #define S35390A_FLAG_RESET	0x80
 #define S35390A_FLAG_TEST	0x01
 
+#define S35390A_INT2_MODE_MASK		0xF0
+
+#define S35390A_INT2_MODE_NOINTR	0x00
+#define S35390A_INT2_MODE_FREQ		0x10
+#define S35390A_INT2_MODE_ALARM		0x40
+#define S35390A_INT2_MODE_PMIN_EDG	0x20
+
 static const struct i2c_device_id s35390a_id[] = {
 	{ "s35390a", 0 },
 	{ }
@@ -50,7 +63,11 @@ static int s35390a_set_reg(struct s35390a *s35390a, int reg, char *buf, int len)
 {
 	struct i2c_client *client = s35390a->client[reg];
 	struct i2c_msg msg[] = {
-		{ client->addr, 0, len, buf },
+		{
+			.addr = client->addr,
+			.len = len,
+			.buf = buf
+		},
 	};
 
 	if ((i2c_transfer(client->adapter, msg, 1)) != 1)
@@ -63,7 +80,12 @@ static int s35390a_get_reg(struct s35390a *s35390a, int reg, char *buf, int len)
 {
 	struct i2c_client *client = s35390a->client[reg];
 	struct i2c_msg msg[] = {
-		{ client->addr, I2C_M_RD, len, buf },
+		{
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = len,
+			.buf = buf
+		},
 	};
 
 	if ((i2c_transfer(client->adapter, msg, 1)) != 1)
@@ -184,6 +206,104 @@ static int s35390a_get_datetime(struct i2c_client *client, struct rtc_time *tm)
 	return rtc_valid_tm(tm);
 }
 
+static int s35390a_set_alarm(struct i2c_client *client, struct rtc_wkalrm *alm)
+{
+	struct s35390a *s35390a = i2c_get_clientdata(client);
+	char buf[3], sts = 0;
+	int err, i;
+
+	dev_dbg(&client->dev, "%s: alm is secs=%d, mins=%d, hours=%d mday=%d, "\
+		"mon=%d, year=%d, wday=%d\n", __func__, alm->time.tm_sec,
+		alm->time.tm_min, alm->time.tm_hour, alm->time.tm_mday,
+		alm->time.tm_mon, alm->time.tm_year, alm->time.tm_wday);
+
+	/* disable interrupt */
+	err = s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, &sts, sizeof(sts));
+	if (err < 0)
+		return err;
+
+	/* clear pending interrupt, if any */
+	err = s35390a_get_reg(s35390a, S35390A_CMD_STATUS1, &sts, sizeof(sts));
+	if (err < 0)
+		return err;
+
+	if (alm->enabled)
+		sts = S35390A_INT2_MODE_ALARM;
+	else
+		sts = S35390A_INT2_MODE_NOINTR;
+
+	/* This chip expects the bits of each byte to be in reverse order */
+	sts = bitrev8(sts);
+
+	/* set interupt mode*/
+	err = s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, &sts, sizeof(sts));
+	if (err < 0)
+		return err;
+
+	if (alm->time.tm_wday != -1)
+		buf[S35390A_ALRM_BYTE_WDAY] = bin2bcd(alm->time.tm_wday) | 0x80;
+
+	buf[S35390A_ALRM_BYTE_HOURS] = s35390a_hr2reg(s35390a,
+			alm->time.tm_hour) | 0x80;
+	buf[S35390A_ALRM_BYTE_MINS] = bin2bcd(alm->time.tm_min) | 0x80;
+
+	if (alm->time.tm_hour >= 12)
+		buf[S35390A_ALRM_BYTE_HOURS] |= 0x40;
+
+	for (i = 0; i < 3; ++i)
+		buf[i] = bitrev8(buf[i]);
+
+	err = s35390a_set_reg(s35390a, S35390A_CMD_INT2_REG1, buf,
+								sizeof(buf));
+
+	return err;
+}
+
+static int s35390a_read_alarm(struct i2c_client *client, struct rtc_wkalrm *alm)
+{
+	struct s35390a *s35390a = i2c_get_clientdata(client);
+	char buf[3], sts;
+	int i, err;
+
+	err = s35390a_get_reg(s35390a, S35390A_CMD_STATUS2, &sts, sizeof(sts));
+	if (err < 0)
+		return err;
+
+	if (bitrev8(sts) != S35390A_INT2_MODE_ALARM)
+		return -EINVAL;
+
+	err = s35390a_get_reg(s35390a, S35390A_CMD_INT2_REG1, buf, sizeof(buf));
+	if (err < 0)
+		return err;
+
+	/* This chip returns the bits of each byte in reverse order */
+	for (i = 0; i < 3; ++i) {
+		buf[i] = bitrev8(buf[i]);
+		buf[i] &= ~0x80;
+	}
+
+	alm->time.tm_wday = bcd2bin(buf[S35390A_ALRM_BYTE_WDAY]);
+	alm->time.tm_hour = s35390a_reg2hr(s35390a,
+						buf[S35390A_ALRM_BYTE_HOURS]);
+	alm->time.tm_min = bcd2bin(buf[S35390A_ALRM_BYTE_MINS]);
+
+	dev_dbg(&client->dev, "%s: alm is mins=%d, hours=%d, wday=%d\n",
+			__func__, alm->time.tm_min, alm->time.tm_hour,
+			alm->time.tm_wday);
+
+	return 0;
+}
+
+static int s35390a_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)
+{
+	return s35390a_read_alarm(to_i2c_client(dev), alm);
+}
+
+static int s35390a_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
+{
+	return s35390a_set_alarm(to_i2c_client(dev), alm);
+}
+
 static int s35390a_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
 	return s35390a_get_datetime(to_i2c_client(dev), tm);
@@ -197,6 +317,9 @@ static int s35390a_rtc_set_time(struct device *dev, struct rtc_time *tm)
 static const struct rtc_class_ops s35390a_rtc_ops = {
 	.read_time	= s35390a_rtc_read_time,
 	.set_time	= s35390a_rtc_set_time,
+	.set_alarm	= s35390a_rtc_set_alarm,
+	.read_alarm	= s35390a_rtc_read_alarm,
+
 };
 
 static struct i2c_driver s35390a_driver;
@@ -261,6 +384,8 @@ static int s35390a_probe(struct i2c_client *client,
 	if (s35390a_get_datetime(client, &tm) < 0)
 		dev_warn(&client->dev, "clock needs to be set\n");
 
+	device_set_wakeup_capable(&client->dev, 1);
+
 	s35390a->rtc = rtc_device_register(s35390a_driver.driver.name,
 				&client->dev, &s35390a_rtc_ops, THIS_MODULE);
 
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index bfbd92c8d1c9..77823d21d314 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -476,13 +476,13 @@ static int __devinit s3c_rtc_probe(struct platform_device *pdev)
 	s3c_rtc_tickno = platform_get_irq(pdev, 1);
 	if (s3c_rtc_tickno < 0) {
 		dev_err(&pdev->dev, "no irq for rtc tick\n");
-		return -ENOENT;
+		return s3c_rtc_tickno;
 	}
 
 	s3c_rtc_alarmno = platform_get_irq(pdev, 0);
 	if (s3c_rtc_alarmno < 0) {
 		dev_err(&pdev->dev, "no irq for alarm\n");
-		return -ENOENT;
+		return s3c_rtc_alarmno;
 	}
 
 	pr_debug("s3c2410_rtc: tick irq %d, alarm irq %d\n",
diff --git a/drivers/rtc/rtc-snvs.c b/drivers/rtc/rtc-snvs.c
new file mode 100644
index 000000000000..3c0da333f465
--- /dev/null
+++ b/drivers/rtc/rtc-snvs.c
@@ -0,0 +1,350 @@
+/*
+ * Copyright (C) 2011-2012 Freescale Semiconductor, Inc.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+
+/* These register offsets are relative to LP (Low Power) range */
+#define SNVS_LPCR		0x04
+#define SNVS_LPSR		0x18
+#define SNVS_LPSRTCMR		0x1c
+#define SNVS_LPSRTCLR		0x20
+#define SNVS_LPTAR		0x24
+#define SNVS_LPPGDR		0x30
+
+#define SNVS_LPCR_SRTC_ENV	(1 << 0)
+#define SNVS_LPCR_LPTA_EN	(1 << 1)
+#define SNVS_LPCR_LPWUI_EN	(1 << 3)
+#define SNVS_LPSR_LPTA		(1 << 0)
+
+#define SNVS_LPPGDR_INIT	0x41736166
+#define CNTR_TO_SECS_SH		15
+
+struct snvs_rtc_data {
+	struct rtc_device *rtc;
+	void __iomem *ioaddr;
+	int irq;
+	spinlock_t lock;
+};
+
+static u32 rtc_read_lp_counter(void __iomem *ioaddr)
+{
+	u64 read1, read2;
+
+	do {
+		read1 = readl(ioaddr + SNVS_LPSRTCMR);
+		read1 <<= 32;
+		read1 |= readl(ioaddr + SNVS_LPSRTCLR);
+
+		read2 = readl(ioaddr + SNVS_LPSRTCMR);
+		read2 <<= 32;
+		read2 |= readl(ioaddr + SNVS_LPSRTCLR);
+	} while (read1 != read2);
+
+	/* Convert 47-bit counter to 32-bit raw second count */
+	return (u32) (read1 >> CNTR_TO_SECS_SH);
+}
+
+static void rtc_write_sync_lp(void __iomem *ioaddr)
+{
+	u32 count1, count2, count3;
+	int i;
+
+	/* Wait for 3 CKIL cycles */
+	for (i = 0; i < 3; i++) {
+		do {
+			count1 = readl(ioaddr + SNVS_LPSRTCLR);
+			count2 = readl(ioaddr + SNVS_LPSRTCLR);
+		} while (count1 != count2);
+
+		/* Now wait until counter value changes */
+		do {
+			do {
+				count2 = readl(ioaddr + SNVS_LPSRTCLR);
+				count3 = readl(ioaddr + SNVS_LPSRTCLR);
+			} while (count2 != count3);
+		} while (count3 == count1);
+	}
+}
+
+static int snvs_rtc_enable(struct snvs_rtc_data *data, bool enable)
+{
+	unsigned long flags;
+	int timeout = 1000;
+	u32 lpcr;
+
+	spin_lock_irqsave(&data->lock, flags);
+
+	lpcr = readl(data->ioaddr + SNVS_LPCR);
+	if (enable)
+		lpcr |= SNVS_LPCR_SRTC_ENV;
+	else
+		lpcr &= ~SNVS_LPCR_SRTC_ENV;
+	writel(lpcr, data->ioaddr + SNVS_LPCR);
+
+	spin_unlock_irqrestore(&data->lock, flags);
+
+	while (--timeout) {
+		lpcr = readl(data->ioaddr + SNVS_LPCR);
+
+		if (enable) {
+			if (lpcr & SNVS_LPCR_SRTC_ENV)
+				break;
+		} else {
+			if (!(lpcr & SNVS_LPCR_SRTC_ENV))
+				break;
+		}
+	}
+
+	if (!timeout)
+		return -ETIMEDOUT;
+
+	return 0;
+}
+
+static int snvs_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+	struct snvs_rtc_data *data = dev_get_drvdata(dev);
+	unsigned long time = rtc_read_lp_counter(data->ioaddr);
+
+	rtc_time_to_tm(time, tm);
+
+	return 0;
+}
+
+static int snvs_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+	struct snvs_rtc_data *data = dev_get_drvdata(dev);
+	unsigned long time;
+
+	rtc_tm_to_time(tm, &time);
+
+	/* Disable RTC first */
+	snvs_rtc_enable(data, false);
+
+	/* Write 32-bit time to 47-bit timer, leaving 15 LSBs blank */
+	writel(time << CNTR_TO_SECS_SH, data->ioaddr + SNVS_LPSRTCLR);
+	writel(time >> (32 - CNTR_TO_SECS_SH), data->ioaddr + SNVS_LPSRTCMR);
+
+	/* Enable RTC again */
+	snvs_rtc_enable(data, true);
+
+	return 0;
+}
+
+static int snvs_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	struct snvs_rtc_data *data = dev_get_drvdata(dev);
+	u32 lptar, lpsr;
+
+	lptar = readl(data->ioaddr + SNVS_LPTAR);
+	rtc_time_to_tm(lptar, &alrm->time);
+
+	lpsr = readl(data->ioaddr + SNVS_LPSR);
+	alrm->pending = (lpsr & SNVS_LPSR_LPTA) ? 1 : 0;
+
+	return 0;
+}
+
+static int snvs_rtc_alarm_irq_enable(struct device *dev, unsigned int enable)
+{
+	struct snvs_rtc_data *data = dev_get_drvdata(dev);
+	u32 lpcr;
+	unsigned long flags;
+
+	spin_lock_irqsave(&data->lock, flags);
+
+	lpcr = readl(data->ioaddr + SNVS_LPCR);
+	if (enable)
+		lpcr |= (SNVS_LPCR_LPTA_EN | SNVS_LPCR_LPWUI_EN);
+	else
+		lpcr &= ~(SNVS_LPCR_LPTA_EN | SNVS_LPCR_LPWUI_EN);
+	writel(lpcr, data->ioaddr + SNVS_LPCR);
+
+	spin_unlock_irqrestore(&data->lock, flags);
+
+	rtc_write_sync_lp(data->ioaddr);
+
+	return 0;
+}
+
+static int snvs_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	struct snvs_rtc_data *data = dev_get_drvdata(dev);
+	struct rtc_time *alrm_tm = &alrm->time;
+	unsigned long time;
+	unsigned long flags;
+	u32 lpcr;
+
+	rtc_tm_to_time(alrm_tm, &time);
+
+	spin_lock_irqsave(&data->lock, flags);
+
+	/* Have to clear LPTA_EN before programming new alarm time in LPTAR */
+	lpcr = readl(data->ioaddr + SNVS_LPCR);
+	lpcr &= ~SNVS_LPCR_LPTA_EN;
+	writel(lpcr, data->ioaddr + SNVS_LPCR);
+
+	spin_unlock_irqrestore(&data->lock, flags);
+
+	writel(time, data->ioaddr + SNVS_LPTAR);
+
+	/* Clear alarm interrupt status bit */
+	writel(SNVS_LPSR_LPTA, data->ioaddr + SNVS_LPSR);
+
+	return snvs_rtc_alarm_irq_enable(dev, alrm->enabled);
+}
+
+static const struct rtc_class_ops snvs_rtc_ops = {
+	.read_time = snvs_rtc_read_time,
+	.set_time = snvs_rtc_set_time,
+	.read_alarm = snvs_rtc_read_alarm,
+	.set_alarm = snvs_rtc_set_alarm,
+	.alarm_irq_enable = snvs_rtc_alarm_irq_enable,
+};
+
+static irqreturn_t snvs_rtc_irq_handler(int irq, void *dev_id)
+{
+	struct device *dev = dev_id;
+	struct snvs_rtc_data *data = dev_get_drvdata(dev);
+	u32 lpsr;
+	u32 events = 0;
+
+	lpsr = readl(data->ioaddr + SNVS_LPSR);
+
+	if (lpsr & SNVS_LPSR_LPTA) {
+		events |= (RTC_AF | RTC_IRQF);
+
+		/* RTC alarm should be one-shot */
+		snvs_rtc_alarm_irq_enable(dev, 0);
+
+		rtc_update_irq(data->rtc, 1, events);
+	}
+
+	/* clear interrupt status */
+	writel(lpsr, data->ioaddr + SNVS_LPSR);
+
+	return events ? IRQ_HANDLED : IRQ_NONE;
+}
+
+static int __devinit snvs_rtc_probe(struct platform_device *pdev)
+{
+	struct snvs_rtc_data *data;
+	struct resource *res;
+	int ret;
+
+	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	data->ioaddr = devm_request_and_ioremap(&pdev->dev, res);
+	if (!data->ioaddr)
+		return -EADDRNOTAVAIL;
+
+	data->irq = platform_get_irq(pdev, 0);
+	if (data->irq < 0)
+		return data->irq;
+
+	platform_set_drvdata(pdev, data);
+
+	spin_lock_init(&data->lock);
+
+	/* Initialize glitch detect */
+	writel(SNVS_LPPGDR_INIT, data->ioaddr + SNVS_LPPGDR);
+
+	/* Clear interrupt status */
+	writel(0xffffffff, data->ioaddr + SNVS_LPSR);
+
+	/* Enable RTC */
+	snvs_rtc_enable(data, true);
+
+	device_init_wakeup(&pdev->dev, true);
+
+	ret = devm_request_irq(&pdev->dev, data->irq, snvs_rtc_irq_handler,
+			       IRQF_SHARED, "rtc alarm", &pdev->dev);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to request irq %d: %d\n",
+			data->irq, ret);
+		return ret;
+	}
+
+	data->rtc = rtc_device_register(pdev->name, &pdev->dev,
+					&snvs_rtc_ops, THIS_MODULE);
+	if (IS_ERR(data->rtc)) {
+		ret = PTR_ERR(data->rtc);
+		dev_err(&pdev->dev, "failed to register rtc: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int __devexit snvs_rtc_remove(struct platform_device *pdev)
+{
+	struct snvs_rtc_data *data = platform_get_drvdata(pdev);
+
+	rtc_device_unregister(data->rtc);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int snvs_rtc_suspend(struct device *dev)
+{
+	struct snvs_rtc_data *data = dev_get_drvdata(dev);
+
+	if (device_may_wakeup(dev))
+		enable_irq_wake(data->irq);
+
+	return 0;
+}
+
+static int snvs_rtc_resume(struct device *dev)
+{
+	struct snvs_rtc_data *data = dev_get_drvdata(dev);
+
+	if (device_may_wakeup(dev))
+		disable_irq_wake(data->irq);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(snvs_rtc_pm_ops, snvs_rtc_suspend, snvs_rtc_resume);
+
+static const struct of_device_id __devinitconst snvs_dt_ids[] = {
+	{ .compatible = "fsl,sec-v4.0-mon-rtc-lp", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, snvs_dt_ids);
+
+static struct platform_driver snvs_rtc_driver = {
+	.driver = {
+		.name	= "snvs_rtc",
+		.owner	= THIS_MODULE,
+		.pm	= &snvs_rtc_pm_ops,
+		.of_match_table = snvs_dt_ids,
+	},
+	.probe		= snvs_rtc_probe,
+	.remove		= __devexit_p(snvs_rtc_remove),
+};
+module_platform_driver(snvs_rtc_driver);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("Freescale SNVS RTC Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-spear.c b/drivers/rtc/rtc-spear.c
index e2785479113c..bb507d23f6ce 100644
--- a/drivers/rtc/rtc-spear.c
+++ b/drivers/rtc/rtc-spear.c
@@ -235,7 +235,7 @@ static int spear_rtc_read_time(struct device *dev, struct rtc_time *tm)
 static int spear_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
 	struct spear_rtc_config *config = dev_get_drvdata(dev);
-	unsigned int time, date, err = 0;
+	unsigned int time, date;
 
 	if (tm2bcd(tm) < 0)
 		return -EINVAL;
@@ -247,11 +247,8 @@ static int spear_rtc_set_time(struct device *dev, struct rtc_time *tm)
 		(tm->tm_year << YEAR_SHIFT);
 	writel(time, config->ioaddr + TIME_REG);
 	writel(date, config->ioaddr + DATE_REG);
-	err = is_write_complete(config);
-	if (err < 0)
-		return err;
 
-	return 0;
+	return is_write_complete(config);
 }
 
 /*
@@ -295,7 +292,8 @@ static int spear_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)
 static int spear_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
 {
 	struct spear_rtc_config *config = dev_get_drvdata(dev);
-	unsigned int time, date, err = 0;
+	unsigned int time, date;
+	int err;
 
 	if (tm2bcd(&alm->time) < 0)
 		return -EINVAL;
@@ -357,7 +355,7 @@ static int __devinit spear_rtc_probe(struct platform_device *pdev)
 {
 	struct resource *res;
 	struct spear_rtc_config *config;
-	unsigned int status = 0;
+	int status = 0;
 	int irq;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/drivers/rtc/rtc-sysfs.c b/drivers/rtc/rtc-sysfs.c
index 380083ca572f..b70e2bb63645 100644
--- a/drivers/rtc/rtc-sysfs.c
+++ b/drivers/rtc/rtc-sysfs.c
@@ -102,6 +102,12 @@ rtc_sysfs_set_max_user_freq(struct device *dev, struct device_attribute *attr,
 	return n;
 }
 
+/**
+ * rtc_sysfs_show_hctosys - indicate if the given RTC set the system time
+ *
+ * Returns 1 if the system clock was set by this RTC at the last
+ * boot or resume event.
+ */
 static ssize_t
 rtc_sysfs_show_hctosys(struct device *dev, struct device_attribute *attr,
 		char *buf)
diff --git a/drivers/rtc/rtc-tps65910.c b/drivers/rtc/rtc-tps65910.c
new file mode 100644
index 000000000000..7a82337e4dee
--- /dev/null
+++ b/drivers/rtc/rtc-tps65910.c
@@ -0,0 +1,349 @@
+/*
+ * rtc-tps65910.c -- TPS65910 Real Time Clock interface
+ *
+ * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
+ * Author: Venu Byravarasu <vbyravarasu@nvidia.com>
+ *
+ * Based on original TI driver rtc-twl.c
+ *   Copyright (C) 2007 MontaVista Software, Inc
+ *   Author: Alexandre Rusev <source@mvista.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/rtc.h>
+#include <linux/bcd.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/mfd/tps65910.h>
+
+struct tps65910_rtc {
+	struct rtc_device	*rtc;
+	/* To store the list of enabled interrupts */
+	u32 irqstat;
+};
+
+/* Total number of RTC registers needed to set time*/
+#define NUM_TIME_REGS	(TPS65910_YEARS - TPS65910_SECONDS + 1)
+
+static int tps65910_rtc_alarm_irq_enable(struct device *dev, unsigned enabled)
+{
+	struct tps65910 *tps = dev_get_drvdata(dev->parent);
+	u8 val = 0;
+
+	if (enabled)
+		val = TPS65910_RTC_INTERRUPTS_IT_ALARM;
+
+	return regmap_write(tps->regmap, TPS65910_RTC_INTERRUPTS, val);
+}
+
+/*
+ * Gets current tps65910 RTC time and date parameters.
+ *
+ * The RTC's time/alarm representation is not what gmtime(3) requires
+ * Linux to use:
+ *
+ *  - Months are 1..12 vs Linux 0-11
+ *  - Years are 0..99 vs Linux 1900..N (we assume 21st century)
+ */
+static int tps65910_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+	unsigned char rtc_data[NUM_TIME_REGS];
+	struct tps65910 *tps = dev_get_drvdata(dev->parent);
+	int ret;
+
+	/* Copy RTC counting registers to static registers or latches */
+	ret = regmap_update_bits(tps->regmap, TPS65910_RTC_CTRL,
+		TPS65910_RTC_CTRL_GET_TIME, TPS65910_RTC_CTRL_GET_TIME);
+	if (ret < 0) {
+		dev_err(dev, "RTC CTRL reg update failed with err:%d\n", ret);
+		return ret;
+	}
+
+	ret = regmap_bulk_read(tps->regmap, TPS65910_SECONDS, rtc_data,
+		NUM_TIME_REGS);
+	if (ret < 0) {
+		dev_err(dev, "reading from RTC failed with err:%d\n", ret);
+		return ret;
+	}
+
+	tm->tm_sec = bcd2bin(rtc_data[0]);
+	tm->tm_min = bcd2bin(rtc_data[1]);
+	tm->tm_hour = bcd2bin(rtc_data[2]);
+	tm->tm_mday = bcd2bin(rtc_data[3]);
+	tm->tm_mon = bcd2bin(rtc_data[4]) - 1;
+	tm->tm_year = bcd2bin(rtc_data[5]) + 100;
+
+	return ret;
+}
+
+static int tps65910_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+	unsigned char rtc_data[NUM_TIME_REGS];
+	struct tps65910 *tps = dev_get_drvdata(dev->parent);
+	int ret;
+
+	rtc_data[0] = bin2bcd(tm->tm_sec);
+	rtc_data[1] = bin2bcd(tm->tm_min);
+	rtc_data[2] = bin2bcd(tm->tm_hour);
+	rtc_data[3] = bin2bcd(tm->tm_mday);
+	rtc_data[4] = bin2bcd(tm->tm_mon + 1);
+	rtc_data[5] = bin2bcd(tm->tm_year - 100);
+
+	/* Stop RTC while updating the RTC time registers */
+	ret = regmap_update_bits(tps->regmap, TPS65910_RTC_CTRL,
+		TPS65910_RTC_CTRL_STOP_RTC, 0);
+	if (ret < 0) {
+		dev_err(dev, "RTC stop failed with err:%d\n", ret);
+		return ret;
+	}
+
+	/* update all the time registers in one shot */
+	ret = regmap_bulk_write(tps->regmap, TPS65910_SECONDS, rtc_data,
+		NUM_TIME_REGS);
+	if (ret < 0) {
+		dev_err(dev, "rtc_set_time error %d\n", ret);
+		return ret;
+	}
+
+	/* Start back RTC */
+	ret = regmap_update_bits(tps->regmap, TPS65910_RTC_CTRL,
+		TPS65910_RTC_CTRL_STOP_RTC, 1);
+	if (ret < 0)
+		dev_err(dev, "RTC start failed with err:%d\n", ret);
+
+	return ret;
+}
+
+/*
+ * Gets current tps65910 RTC alarm time.
+ */
+static int tps65910_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)
+{
+	unsigned char alarm_data[NUM_TIME_REGS];
+	u32 int_val;
+	struct tps65910 *tps = dev_get_drvdata(dev->parent);
+	int ret;
+
+	ret = regmap_bulk_read(tps->regmap, TPS65910_SECONDS, alarm_data,
+		NUM_TIME_REGS);
+	if (ret < 0) {
+		dev_err(dev, "rtc_read_alarm error %d\n", ret);
+		return ret;
+	}
+
+	alm->time.tm_sec = bcd2bin(alarm_data[0]);
+	alm->time.tm_min = bcd2bin(alarm_data[1]);
+	alm->time.tm_hour = bcd2bin(alarm_data[2]);
+	alm->time.tm_mday = bcd2bin(alarm_data[3]);
+	alm->time.tm_mon = bcd2bin(alarm_data[4]) - 1;
+	alm->time.tm_year = bcd2bin(alarm_data[5]) + 100;
+
+	ret = regmap_read(tps->regmap, TPS65910_RTC_INTERRUPTS, &int_val);
+	if (ret < 0)
+		return ret;
+
+	if (int_val & TPS65910_RTC_INTERRUPTS_IT_ALARM)
+		alm->enabled = 1;
+
+	return ret;
+}
+
+static int tps65910_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
+{
+	unsigned char alarm_data[NUM_TIME_REGS];
+	struct tps65910 *tps = dev_get_drvdata(dev->parent);
+	int ret;
+
+	ret = tps65910_rtc_alarm_irq_enable(dev, 0);
+	if (ret)
+		return ret;
+
+	alarm_data[0] = bin2bcd(alm->time.tm_sec);
+	alarm_data[1] = bin2bcd(alm->time.tm_min);
+	alarm_data[2] = bin2bcd(alm->time.tm_hour);
+	alarm_data[3] = bin2bcd(alm->time.tm_mday);
+	alarm_data[4] = bin2bcd(alm->time.tm_mon + 1);
+	alarm_data[5] = bin2bcd(alm->time.tm_year - 100);
+
+	/* update all the alarm registers in one shot */
+	ret = regmap_bulk_write(tps->regmap, TPS65910_ALARM_SECONDS,
+		alarm_data, NUM_TIME_REGS);
+	if (ret) {
+		dev_err(dev, "rtc_set_alarm error %d\n", ret);
+		return ret;
+	}
+
+	if (alm->enabled)
+		ret = tps65910_rtc_alarm_irq_enable(dev, 1);
+
+	return ret;
+}
+
+static irqreturn_t tps65910_rtc_interrupt(int irq, void *rtc)
+{
+	struct device *dev = rtc;
+	unsigned long events = 0;
+	struct tps65910 *tps = dev_get_drvdata(dev->parent);
+	struct tps65910_rtc *tps_rtc = dev_get_drvdata(dev);
+	int ret;
+	u32 rtc_reg;
+
+	ret = regmap_read(tps->regmap, TPS65910_RTC_STATUS, &rtc_reg);
+	if (ret)
+		return IRQ_NONE;
+
+	if (rtc_reg & TPS65910_RTC_STATUS_ALARM)
+		events = RTC_IRQF | RTC_AF;
+
+	ret = regmap_write(tps->regmap, TPS65910_RTC_STATUS, rtc_reg);
+	if (ret)
+		return IRQ_NONE;
+
+	/* Notify RTC core on event */
+	rtc_update_irq(tps_rtc->rtc, 1, events);
+
+	return IRQ_HANDLED;
+}
+
+static const struct rtc_class_ops tps65910_rtc_ops = {
+	.read_time	= tps65910_rtc_read_time,
+	.set_time	= tps65910_rtc_set_time,
+	.read_alarm	= tps65910_rtc_read_alarm,
+	.set_alarm	= tps65910_rtc_set_alarm,
+	.alarm_irq_enable = tps65910_rtc_alarm_irq_enable,
+};
+
+static int __devinit tps65910_rtc_probe(struct platform_device *pdev)
+{
+	struct tps65910 *tps65910 = NULL;
+	struct tps65910_rtc *tps_rtc = NULL;
+	int ret;
+	int irq;
+	u32 rtc_reg;
+
+	tps65910 = dev_get_drvdata(pdev->dev.parent);
+
+	tps_rtc = devm_kzalloc(&pdev->dev, sizeof(struct tps65910_rtc),
+			GFP_KERNEL);
+	if (!tps_rtc)
+		return -ENOMEM;
+
+	/* Clear pending interrupts */
+	ret = regmap_read(tps65910->regmap, TPS65910_RTC_STATUS, &rtc_reg);
+	if (ret < 0)
+		return ret;
+
+	ret = regmap_write(tps65910->regmap, TPS65910_RTC_STATUS, rtc_reg);
+	if (ret < 0)
+		return ret;
+
+	dev_dbg(&pdev->dev, "Enabling rtc-tps65910.\n");
+	rtc_reg = TPS65910_RTC_CTRL_STOP_RTC;
+	ret = regmap_write(tps65910->regmap, TPS65910_RTC_CTRL, rtc_reg);
+	if (ret < 0)
+		return ret;
+
+	irq  = platform_get_irq(pdev, 0);
+	if (irq <= 0) {
+		dev_warn(&pdev->dev, "Wake up is not possible as irq = %d\n",
+			irq);
+		return ret;
+	}
+
+	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+		tps65910_rtc_interrupt, IRQF_TRIGGER_LOW,
+		"rtc-tps65910", &pdev->dev);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "IRQ is not free.\n");
+		return ret;
+	}
+	device_init_wakeup(&pdev->dev, 1);
+
+	tps_rtc->rtc = rtc_device_register(pdev->name, &pdev->dev,
+		&tps65910_rtc_ops, THIS_MODULE);
+	if (IS_ERR(tps_rtc->rtc)) {
+		ret = PTR_ERR(tps_rtc->rtc);
+		dev_err(&pdev->dev, "RTC device register: err %d\n", ret);
+		return ret;
+	}
+
+	platform_set_drvdata(pdev, tps_rtc);
+
+	return 0;
+}
+
+/*
+ * Disable tps65910 RTC interrupts.
+ * Sets status flag to free.
+ */
+static int __devexit tps65910_rtc_remove(struct platform_device *pdev)
+{
+	/* leave rtc running, but disable irqs */
+	struct rtc_device *rtc = platform_get_drvdata(pdev);
+
+	tps65910_rtc_alarm_irq_enable(&rtc->dev, 0);
+
+	rtc_device_unregister(rtc);
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+
+static int tps65910_rtc_suspend(struct device *dev)
+{
+	struct tps65910 *tps = dev_get_drvdata(dev->parent);
+	u8 alarm = TPS65910_RTC_INTERRUPTS_IT_ALARM;
+	int ret;
+
+	/* Store current list of enabled interrupts*/
+	ret = regmap_read(tps->regmap, TPS65910_RTC_INTERRUPTS,
+		&tps->rtc->irqstat);
+	if (ret < 0)
+		return ret;
+
+	/* Enable RTC ALARM interrupt only */
+	return regmap_write(tps->regmap, TPS65910_RTC_INTERRUPTS, alarm);
+}
+
+static int tps65910_rtc_resume(struct device *dev)
+{
+	struct tps65910 *tps = dev_get_drvdata(dev->parent);
+
+	/* Restore list of enabled interrupts before suspend */
+	return regmap_write(tps->regmap, TPS65910_RTC_INTERRUPTS,
+		tps->rtc->irqstat);
+}
+
+static const struct dev_pm_ops tps65910_rtc_pm_ops = {
+	.suspend	= tps65910_rtc_suspend,
+	.resume		= tps65910_rtc_resume,
+};
+
+#define DEV_PM_OPS     (&tps65910_rtc_pm_ops)
+#else
+#define DEV_PM_OPS     NULL
+#endif
+
+static struct platform_driver tps65910_rtc_driver = {
+	.probe		= tps65910_rtc_probe,
+	.remove		= __devexit_p(tps65910_rtc_remove),
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= "tps65910-rtc",
+		.pm	= DEV_PM_OPS,
+	},
+};
+
+module_platform_driver(tps65910_rtc_driver);
+MODULE_ALIAS("platform:rtc-tps65910");
+MODULE_AUTHOR("Venu Byravarasu <vbyravarasu@nvidia.com>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-x1205.c b/drivers/rtc/rtc-x1205.c
index 403b3d41d101..f36e59c6bc01 100644
--- a/drivers/rtc/rtc-x1205.c
+++ b/drivers/rtc/rtc-x1205.c
@@ -97,8 +97,17 @@ static int x1205_get_datetime(struct i2c_client *client, struct rtc_time *tm,
 	int i;
 
 	struct i2c_msg msgs[] = {
-		{ client->addr, 0, 2, dt_addr },	/* setup read ptr */
-		{ client->addr, I2C_M_RD, 8, buf },	/* read date */
+		{/* setup read ptr */
+			.addr = client->addr,
+			.len = 2,
+			.buf = dt_addr
+		},
+		{/* read date */
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = 8,
+			.buf = buf
+		},
 	};
 
 	/* read date registers */
@@ -142,8 +151,17 @@ static int x1205_get_status(struct i2c_client *client, unsigned char *sr)
 	static unsigned char sr_addr[2] = { 0, X1205_REG_SR };
 
 	struct i2c_msg msgs[] = {
-		{ client->addr, 0, 2, sr_addr },	/* setup read ptr */
-		{ client->addr, I2C_M_RD, 1, sr },	/* read status */
+		{     /* setup read ptr */
+			.addr = client->addr,
+			.len = 2,
+			.buf = sr_addr
+		},
+		{    /* read status */
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = 1,
+			.buf = sr
+		},
 	};
 
 	/* read status register */
@@ -279,8 +297,17 @@ static int x1205_get_dtrim(struct i2c_client *client, int *trim)
 	static unsigned char dtr_addr[2] = { 0, X1205_REG_DTR };
 
 	struct i2c_msg msgs[] = {
-		{ client->addr, 0, 2, dtr_addr },	/* setup read ptr */
-		{ client->addr, I2C_M_RD, 1, &dtr }, 	/* read dtr */
+		{	/* setup read ptr */
+			.addr = client->addr,
+			.len = 2,
+			.buf = dtr_addr
+		},
+		{      /* read dtr */
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = 1,
+			.buf = &dtr
+		},
 	};
 
 	/* read dtr register */
@@ -311,8 +338,17 @@ static int x1205_get_atrim(struct i2c_client *client, int *trim)
 	static unsigned char atr_addr[2] = { 0, X1205_REG_ATR };
 
 	struct i2c_msg msgs[] = {
-		{ client->addr, 0, 2, atr_addr },	/* setup read ptr */
-		{ client->addr, I2C_M_RD, 1, &atr }, 	/* read atr */
+		{/* setup read ptr */
+			.addr = client->addr,
+			.len = 2,
+			.buf = atr_addr
+		},
+		{/* read atr */
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = 1,
+			.buf = &atr
+		},
 	};
 
 	/* read atr register */
@@ -381,8 +417,17 @@ static int x1205_validate_client(struct i2c_client *client)
 		unsigned char addr[2] = { 0, probe_zero_pattern[i] };
 
 		struct i2c_msg msgs[2] = {
-			{ client->addr, 0, 2, addr },
-			{ client->addr, I2C_M_RD, 1, &buf },
+			{
+				.addr = client->addr,
+				.len = 2,
+				.buf = addr
+			},
+			{
+				.addr = client->addr,
+				.flags = I2C_M_RD,
+				.len = 1,
+				.buf = &buf
+			},
 		};
 
 		if ((xfer = i2c_transfer(client->adapter, msgs, 2)) != 2) {
@@ -409,8 +454,17 @@ static int x1205_validate_client(struct i2c_client *client)
 		unsigned char addr[2] = { 0, probe_limits_pattern[i].reg };
 
 		struct i2c_msg msgs[2] = {
-			{ client->addr, 0, 2, addr },
-			{ client->addr, I2C_M_RD, 1, &reg },
+			{
+				.addr = client->addr,
+				.len = 2,
+				.buf = addr
+			},
+			{
+				.addr = client->addr,
+				.flags = I2C_M_RD,
+				.len = 1,
+				.buf = &reg
+			},
 		};
 
 		if ((xfer = i2c_transfer(client->adapter, msgs, 2)) != 2) {
@@ -444,8 +498,18 @@ static int x1205_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 	static unsigned char int_addr[2] = { 0, X1205_REG_INT };
 	struct i2c_client *client = to_i2c_client(dev);
 	struct i2c_msg msgs[] = {
-		{ client->addr, 0, 2, int_addr },        /* setup read ptr */
-		{ client->addr, I2C_M_RD, 1, &intreg },  /* read INT register */
+		{ /* setup read ptr */
+			.addr = client->addr,
+			.len = 2,
+			.buf = int_addr
+		},
+		{/* read INT register */
+
+			.addr = client->addr,
+			.flags = I2C_M_RD,
+			.len = 1,
+			.buf = &intreg
+		},
 	};
 
 	/* read interrupt register and status register */
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 7199534cd07d..cb7f1582a6d1 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -93,7 +93,7 @@ static DECLARE_PCI_DEVICE_TABLE(aac_pci_tbl) = {
 #elif defined(__devinitconst)
 static const struct pci_device_id aac_pci_tbl[] __devinitconst = {
 #else
-static const struct pci_device_id aac_pci_tbl[] __devinitdata = {
+static const struct pci_device_id aac_pci_tbl[] __devinitconst = {
 #endif
 	{ 0x1028, 0x0001, 0x1028, 0x0001, 0, 0, 0 }, /* PERC 2/Si (Iguana/PERC2Si) */
 	{ 0x1028, 0x0002, 0x1028, 0x0002, 0, 0, 1 }, /* PERC 3/Di (Opal/PERC3Di) */
diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c
index ff80552ead84..1c4120c3db41 100644
--- a/drivers/scsi/aic94xx/aic94xx_init.c
+++ b/drivers/scsi/aic94xx/aic94xx_init.c
@@ -1012,7 +1012,7 @@ static struct sas_domain_function_template aic94xx_transport_functions = {
 	.lldd_ata_set_dmamode	= asd_set_dmamode,
 };
 
-static const struct pci_device_id aic94xx_pci_table[] __devinitdata = {
+static const struct pci_device_id aic94xx_pci_table[] __devinitconst = {
 	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x410),0, 0, 1},
 	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x412),0, 0, 1},
 	{PCI_DEVICE(PCI_VENDOR_ID_ADAPTEC2, 0x416),0, 0, 1},
diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index 68ce08552f69..a540162ac59c 100644
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -1173,7 +1173,16 @@ wait_io1:
 	outw(val, tmport);
 	outb(2, 0x80);
 TCM_SYNC:
-	udelay(0x800);
+	/*
+	 * The funny division into multiple delays is to accomodate
+	 * arches like ARM where udelay() multiplies its argument by
+	 * a large number to initialize a loop counter.  To avoid
+	 * overflow, the maximum supported udelay is 2000 microseconds.
+	 *
+	 * XXX it would be more polite to find a way to use msleep()
+	 */
+	mdelay(2);
+	udelay(48);
 	if ((inb(tmport) & 0x80) == 0x00) {	/* bsy ? */
 		outw(0, tmport--);
 		outb(0, tmport);
diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index 67789b8345d2..efd81bb25e01 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -78,7 +78,7 @@ again:
 	else if (unlikely(err))
 		return err;
 
-	*id = *id & MAX_ID_MASK;
+	*id = *id & MAX_IDR_MASK;
 	return 0;
 }
 
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index 747442d2c0f6..0fefa84ed9ae 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -149,7 +149,7 @@ enum {
 };
 
 /* Must match above enum */
-static const char *r128_family[] __devinitdata = {
+static char * const r128_family[] __devinitconst = {
 	"AGP",
 	"PCI",
 	"PRO AGP",
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 63cee2e9d622..c101697a4ba7 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -229,13 +229,6 @@ config BACKLIGHT_HP700
 	  If you have an HP Jornada 700 series,
 	  say Y to include backlight control driver.
 
-config BACKLIGHT_PROGEAR
-	tristate "Frontpath ProGear Backlight Driver"
-	depends on PCI && X86
-	help
-	  If you have a Frontpath ProGear say Y to enable the
-	  backlight driver.
-
 config BACKLIGHT_CARILLO_RANCH
 	tristate "Intel Carillo Ranch Backlight Driver"
 	depends on LCD_CLASS_DEVICE && PCI && X86 && FB_LE80578
@@ -352,6 +345,22 @@ config BACKLIGHT_AAT2870
 	  If you have a AnalogicTech AAT2870 say Y to enable the
 	  backlight driver.
 
+config BACKLIGHT_LM3630
+	tristate "Backlight Driver for LM3630"
+	depends on BACKLIGHT_CLASS_DEVICE && I2C
+	select REGMAP_I2C
+	help
+	  This supports TI LM3630 Backlight Driver
+
+config BACKLIGHT_LM3639
+	tristate "Backlight Driver for LM3639"
+	depends on BACKLIGHT_CLASS_DEVICE && I2C
+	select REGMAP_I2C
+	select NEW_LEDS
+	select LEDS_CLASS
+	help
+	  This supports TI LM3639 Backlight + 1.5A Flash LED Driver
+
 config BACKLIGHT_LP855X
 	tristate "Backlight driver for TI LP855X"
 	depends on BACKLIGHT_CLASS_DEVICE && I2C
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index 00223a62ec12..e7ce7291635d 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -23,10 +23,11 @@ obj-$(CONFIG_BACKLIGHT_HP700)	+= jornada720_bl.o
 obj-$(CONFIG_BACKLIGHT_HP680)	+= hp680_bl.o
 obj-$(CONFIG_BACKLIGHT_LM3533)	+= lm3533_bl.o
 obj-$(CONFIG_BACKLIGHT_LOCOMO)	+= locomolcd.o
+obj-$(CONFIG_BACKLIGHT_LM3630)	+= lm3630_bl.o
+obj-$(CONFIG_BACKLIGHT_LM3639)	+= lm3639_bl.o
 obj-$(CONFIG_BACKLIGHT_LP855X)	+= lp855x_bl.o
 obj-$(CONFIG_BACKLIGHT_OMAP1)	+= omap1_bl.o
 obj-$(CONFIG_BACKLIGHT_PANDORA)	+= pandora_bl.o
-obj-$(CONFIG_BACKLIGHT_PROGEAR) += progear_bl.o
 obj-$(CONFIG_BACKLIGHT_CARILLO_RANCH) += cr_bllcd.o
 obj-$(CONFIG_BACKLIGHT_PWM)	+= pwm_bl.o
 obj-$(CONFIG_BACKLIGHT_DA903X)	+= da903x_bl.o
diff --git a/drivers/video/backlight/da9052_bl.c b/drivers/video/backlight/da9052_bl.c
index b628d68f5162..ac196181fe45 100644
--- a/drivers/video/backlight/da9052_bl.c
+++ b/drivers/video/backlight/da9052_bl.c
@@ -72,7 +72,7 @@ static int da9052_adjust_wled_brightness(struct da9052_bl *wleds)
 	if (ret < 0)
 		return ret;
 
-	msleep(10);
+	usleep_range(10000, 11000);
 
 	if (wleds->brightness) {
 		ret = da9052_reg_write(wleds->da9052, wled_bank[wleds->led_reg],
@@ -129,7 +129,6 @@ static int da9052_backlight_probe(struct platform_device *pdev)
 				       &da9052_backlight_ops, &props);
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "Failed to register backlight\n");
-		devm_kfree(&pdev->dev, wleds);
 		return PTR_ERR(bl);
 	}
 
@@ -149,7 +148,6 @@ static int da9052_backlight_remove(struct platform_device *pdev)
 	wleds->state = DA9052_WLEDS_OFF;
 	da9052_adjust_wled_brightness(wleds);
 	backlight_device_unregister(bl);
-	devm_kfree(&pdev->dev, wleds);
 
 	return 0;
 }
diff --git a/drivers/video/backlight/kb3886_bl.c b/drivers/video/backlight/kb3886_bl.c
index 72dd5556a35b..6c5ed6b242cc 100644
--- a/drivers/video/backlight/kb3886_bl.c
+++ b/drivers/video/backlight/kb3886_bl.c
@@ -34,9 +34,9 @@ static void kb3886_bl_set_intensity(int intensity)
 	mutex_lock(&bl_mutex);
 	intensity = intensity&0xff;
 	outb(KB3886_ADC_DAC_PWM, KB3886_PARENT);
-	msleep(10);
+	usleep_range(10000, 11000);
 	outb(KB3886_PWM0_WRITE, KB3886_IO);
-	msleep(10);
+	usleep_range(10000, 11000);
 	outb(intensity, KB3886_IO);
 	mutex_unlock(&bl_mutex);
 }
diff --git a/drivers/video/backlight/lm3630_bl.c b/drivers/video/backlight/lm3630_bl.c
new file mode 100644
index 000000000000..dc191441796f
--- /dev/null
+++ b/drivers/video/backlight/lm3630_bl.c
@@ -0,0 +1,475 @@
+/*
+* Simple driver for Texas Instruments LM3630 Backlight driver chip
+* Copyright (C) 2012 Texas Instruments
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 2 as
+* published by the Free Software Foundation.
+*
+*/
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/backlight.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/uaccess.h>
+#include <linux/interrupt.h>
+#include <linux/regmap.h>
+#include <linux/platform_data/lm3630_bl.h>
+
+#define REG_CTRL	0x00
+#define REG_CONFIG	0x01
+#define REG_BRT_A	0x03
+#define REG_BRT_B	0x04
+#define REG_INT_STATUS	0x09
+#define REG_INT_EN	0x0A
+#define REG_FAULT	0x0B
+#define REG_PWM_OUTLOW	0x12
+#define REG_PWM_OUTHIGH	0x13
+#define REG_MAX		0x1F
+
+#define INT_DEBOUNCE_MSEC	10
+
+enum lm3630_leds {
+	BLED_ALL = 0,
+	BLED_1,
+	BLED_2
+};
+
+static const char *bled_name[] = {
+	[BLED_ALL] = "lm3630_bled",	/*Bank1 controls all string */
+	[BLED_1] = "lm3630_bled1",	/*Bank1 controls bled1 */
+	[BLED_2] = "lm3630_bled2",	/*Bank1 or 2 controls bled2 */
+};
+
+struct lm3630_chip_data {
+	struct device *dev;
+	struct delayed_work work;
+	int irq;
+	struct workqueue_struct *irqthread;
+	struct lm3630_platform_data *pdata;
+	struct backlight_device *bled1;
+	struct backlight_device *bled2;
+	struct regmap *regmap;
+};
+
+/* initialize chip */
+static int __devinit lm3630_chip_init(struct lm3630_chip_data *pchip)
+{
+	int ret;
+	unsigned int reg_val;
+	struct lm3630_platform_data *pdata = pchip->pdata;
+
+	/*pwm control */
+	reg_val = ((pdata->pwm_active & 0x01) << 2) | (pdata->pwm_ctrl & 0x03);
+	ret = regmap_update_bits(pchip->regmap, REG_CONFIG, 0x07, reg_val);
+	if (ret < 0)
+		goto out;
+
+	/* bank control */
+	reg_val = ((pdata->bank_b_ctrl & 0x01) << 1) |
+			(pdata->bank_a_ctrl & 0x07);
+	ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x07, reg_val);
+	if (ret < 0)
+		goto out;
+
+	ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x80, 0x00);
+	if (ret < 0)
+		goto out;
+
+	/* set initial brightness */
+	if (pdata->bank_a_ctrl != BANK_A_CTRL_DISABLE) {
+		ret = regmap_write(pchip->regmap,
+				   REG_BRT_A, pdata->init_brt_led1);
+		if (ret < 0)
+			goto out;
+	}
+
+	if (pdata->bank_b_ctrl != BANK_B_CTRL_DISABLE) {
+		ret = regmap_write(pchip->regmap,
+				   REG_BRT_B, pdata->init_brt_led2);
+		if (ret < 0)
+			goto out;
+	}
+	return ret;
+
+out:
+	dev_err(pchip->dev, "i2c failed to access register\n");
+	return ret;
+}
+
+/* interrupt handling */
+static void lm3630_delayed_func(struct work_struct *work)
+{
+	int ret;
+	unsigned int reg_val;
+	struct lm3630_chip_data *pchip;
+
+	pchip = container_of(work, struct lm3630_chip_data, work.work);
+
+	ret = regmap_read(pchip->regmap, REG_INT_STATUS, &reg_val);
+	if (ret < 0) {
+		dev_err(pchip->dev,
+			"i2c failed to access REG_INT_STATUS Register\n");
+		return;
+	}
+
+	dev_info(pchip->dev, "REG_INT_STATUS Register is 0x%x\n", reg_val);
+}
+
+static irqreturn_t lm3630_isr_func(int irq, void *chip)
+{
+	int ret;
+	struct lm3630_chip_data *pchip = chip;
+	unsigned long delay = msecs_to_jiffies(INT_DEBOUNCE_MSEC);
+
+	queue_delayed_work(pchip->irqthread, &pchip->work, delay);
+
+	ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x80, 0x00);
+	if (ret < 0)
+		goto out;
+
+	return IRQ_HANDLED;
+out:
+	dev_err(pchip->dev, "i2c failed to access register\n");
+	return IRQ_HANDLED;
+}
+
+static int lm3630_intr_config(struct lm3630_chip_data *pchip)
+{
+	INIT_DELAYED_WORK(&pchip->work, lm3630_delayed_func);
+	pchip->irqthread = create_singlethread_workqueue("lm3630-irqthd");
+	if (!pchip->irqthread) {
+		dev_err(pchip->dev, "create irq thread fail...\n");
+		return -1;
+	}
+	if (request_threaded_irq
+	    (pchip->irq, NULL, lm3630_isr_func,
+	     IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "lm3630_irq", pchip)) {
+		dev_err(pchip->dev, "request threaded irq fail..\n");
+		return -1;
+	}
+	return 0;
+}
+
+static bool
+set_intensity(struct backlight_device *bl, struct lm3630_chip_data *pchip)
+{
+	if (!pchip->pdata->pwm_set_intensity)
+		return false;
+	pchip->pdata->pwm_set_intensity(bl->props.brightness - 1,
+					pchip->pdata->pwm_period);
+	return true;
+}
+
+/* update and get brightness */
+static int lm3630_bank_a_update_status(struct backlight_device *bl)
+{
+	int ret;
+	struct lm3630_chip_data *pchip = bl_get_data(bl);
+	enum lm3630_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;
+
+	/* brightness 0 means disable */
+	if (!bl->props.brightness) {
+		ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x04, 0x00);
+		if (ret < 0)
+			goto out;
+		return bl->props.brightness;
+	}
+
+	/* pwm control */
+	if (pwm_ctrl == PWM_CTRL_BANK_A || pwm_ctrl == PWM_CTRL_BANK_ALL) {
+		if (!set_intensity(bl, pchip))
+			dev_err(pchip->dev, "No pwm control func. in plat-data\n");
+	} else {
+
+		/* i2c control */
+		ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x80, 0x00);
+		if (ret < 0)
+			goto out;
+		mdelay(1);
+		ret = regmap_write(pchip->regmap,
+				   REG_BRT_A, bl->props.brightness - 1);
+		if (ret < 0)
+			goto out;
+	}
+	return bl->props.brightness;
+out:
+	dev_err(pchip->dev, "i2c failed to access REG_CTRL\n");
+	return bl->props.brightness;
+}
+
+static int lm3630_bank_a_get_brightness(struct backlight_device *bl)
+{
+	unsigned int reg_val;
+	int brightness, ret;
+	struct lm3630_chip_data *pchip = bl_get_data(bl);
+	enum lm3630_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;
+
+	if (pwm_ctrl == PWM_CTRL_BANK_A || pwm_ctrl == PWM_CTRL_BANK_ALL) {
+		ret = regmap_read(pchip->regmap, REG_PWM_OUTHIGH, &reg_val);
+		if (ret < 0)
+			goto out;
+		brightness = reg_val & 0x01;
+		ret = regmap_read(pchip->regmap, REG_PWM_OUTLOW, &reg_val);
+		if (ret < 0)
+			goto out;
+		brightness = ((brightness << 8) | reg_val) + 1;
+	} else {
+		ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x80, 0x00);
+		if (ret < 0)
+			goto out;
+		mdelay(1);
+		ret = regmap_read(pchip->regmap, REG_BRT_A, &reg_val);
+		if (ret < 0)
+			goto out;
+		brightness = reg_val + 1;
+	}
+	bl->props.brightness = brightness;
+	return bl->props.brightness;
+out:
+	dev_err(pchip->dev, "i2c failed to access register\n");
+	return 0;
+}
+
+static const struct backlight_ops lm3630_bank_a_ops = {
+	.options = BL_CORE_SUSPENDRESUME,
+	.update_status = lm3630_bank_a_update_status,
+	.get_brightness = lm3630_bank_a_get_brightness,
+};
+
+static int lm3630_bank_b_update_status(struct backlight_device *bl)
+{
+	int ret;
+	struct lm3630_chip_data *pchip = bl_get_data(bl);
+	enum lm3630_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;
+
+	if (pwm_ctrl == PWM_CTRL_BANK_B || pwm_ctrl == PWM_CTRL_BANK_ALL) {
+		if (!set_intensity(bl, pchip))
+			dev_err(pchip->dev,
+				"no pwm control func. in plat-data\n");
+	} else {
+		ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x80, 0x00);
+		if (ret < 0)
+			goto out;
+		mdelay(1);
+		ret = regmap_write(pchip->regmap,
+				   REG_BRT_B, bl->props.brightness - 1);
+	}
+	return bl->props.brightness;
+out:
+	dev_err(pchip->dev, "i2c failed to access register\n");
+	return bl->props.brightness;
+}
+
+static int lm3630_bank_b_get_brightness(struct backlight_device *bl)
+{
+	unsigned int reg_val;
+	int brightness, ret;
+	struct lm3630_chip_data *pchip = bl_get_data(bl);
+	enum lm3630_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;
+
+	if (pwm_ctrl == PWM_CTRL_BANK_B || pwm_ctrl == PWM_CTRL_BANK_ALL) {
+		ret = regmap_read(pchip->regmap, REG_PWM_OUTHIGH, &reg_val);
+		if (ret < 0)
+			goto out;
+		brightness = reg_val & 0x01;
+		ret = regmap_read(pchip->regmap, REG_PWM_OUTLOW, &reg_val);
+		if (ret < 0)
+			goto out;
+		brightness = ((brightness << 8) | reg_val) + 1;
+	} else {
+		ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x80, 0x00);
+		if (ret < 0)
+			goto out;
+		mdelay(1);
+		ret = regmap_read(pchip->regmap, REG_BRT_B, &reg_val);
+		if (ret < 0)
+			goto out;
+		brightness = reg_val + 1;
+	}
+	bl->props.brightness = brightness;
+
+	return bl->props.brightness;
+out:
+	dev_err(pchip->dev, "i2c failed to access register\n");
+	return bl->props.brightness;
+}
+
+static const struct backlight_ops lm3630_bank_b_ops = {
+	.options = BL_CORE_SUSPENDRESUME,
+	.update_status = lm3630_bank_b_update_status,
+	.get_brightness = lm3630_bank_b_get_brightness,
+};
+
+static int lm3630_backlight_register(struct lm3630_chip_data *pchip,
+				     enum lm3630_leds ledno)
+{
+	const char *name = bled_name[ledno];
+	struct backlight_properties props;
+	struct lm3630_platform_data *pdata = pchip->pdata;
+
+	props.type = BACKLIGHT_RAW;
+	switch (ledno) {
+	case BLED_1:
+	case BLED_ALL:
+		props.brightness = pdata->init_brt_led1;
+		props.max_brightness = pdata->max_brt_led1;
+		pchip->bled1 =
+		    backlight_device_register(name, pchip->dev, pchip,
+					      &lm3630_bank_a_ops, &props);
+		if (IS_ERR(pchip->bled1))
+			return -EIO;
+		break;
+	case BLED_2:
+		props.brightness = pdata->init_brt_led2;
+		props.max_brightness = pdata->max_brt_led2;
+		pchip->bled2 =
+		    backlight_device_register(name, pchip->dev, pchip,
+					      &lm3630_bank_b_ops, &props);
+		if (IS_ERR(pchip->bled2))
+			return -EIO;
+		break;
+	}
+	return 0;
+}
+
+static void lm3630_backlight_unregister(struct lm3630_chip_data *pchip)
+{
+	if (pchip->bled1)
+		backlight_device_unregister(pchip->bled1);
+	if (pchip->bled2)
+		backlight_device_unregister(pchip->bled2);
+}
+
+static const struct regmap_config lm3630_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = REG_MAX,
+};
+
+static int __devinit lm3630_probe(struct i2c_client *client,
+				  const struct i2c_device_id *id)
+{
+	struct lm3630_platform_data *pdata = client->dev.platform_data;
+	struct lm3630_chip_data *pchip;
+	int ret;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		dev_err(&client->dev, "fail : i2c functionality check...\n");
+		return -EOPNOTSUPP;
+	}
+
+	if (pdata == NULL) {
+		dev_err(&client->dev, "fail : no platform data.\n");
+		return -ENODATA;
+	}
+
+	pchip = devm_kzalloc(&client->dev, sizeof(struct lm3630_chip_data),
+			     GFP_KERNEL);
+	if (!pchip)
+		return -ENOMEM;
+	pchip->pdata = pdata;
+	pchip->dev = &client->dev;
+
+	pchip->regmap = devm_regmap_init_i2c(client, &lm3630_regmap);
+	if (IS_ERR(pchip->regmap)) {
+		ret = PTR_ERR(pchip->regmap);
+		dev_err(&client->dev, "fail : allocate register map: %d\n",
+			ret);
+		return ret;
+	}
+	i2c_set_clientdata(client, pchip);
+
+	/* chip initialize */
+	ret = lm3630_chip_init(pchip);
+	if (ret < 0) {
+		dev_err(&client->dev, "fail : init chip\n");
+		goto err_chip_init;
+	}
+
+	switch (pdata->bank_a_ctrl) {
+	case BANK_A_CTRL_ALL:
+		ret = lm3630_backlight_register(pchip, BLED_ALL);
+		pdata->bank_b_ctrl = BANK_B_CTRL_DISABLE;
+		break;
+	case BANK_A_CTRL_LED1:
+		ret = lm3630_backlight_register(pchip, BLED_1);
+		break;
+	case BANK_A_CTRL_LED2:
+		ret = lm3630_backlight_register(pchip, BLED_2);
+		pdata->bank_b_ctrl = BANK_B_CTRL_DISABLE;
+		break;
+	default:
+		break;
+	}
+
+	if (ret < 0)
+		goto err_bl_reg;
+
+	if (pdata->bank_b_ctrl && pchip->bled2 == NULL) {
+		ret = lm3630_backlight_register(pchip, BLED_2);
+		if (ret < 0)
+			goto err_bl_reg;
+	}
+
+	/* interrupt enable  : irq 0 is not allowed for lm3630 */
+	pchip->irq = client->irq;
+	if (pchip->irq)
+		lm3630_intr_config(pchip);
+
+	dev_info(&client->dev, "LM3630 backlight register OK.\n");
+	return 0;
+
+err_bl_reg:
+	dev_err(&client->dev, "fail : backlight register.\n");
+	lm3630_backlight_unregister(pchip);
+err_chip_init:
+	return ret;
+}
+
+static int __devexit lm3630_remove(struct i2c_client *client)
+{
+	int ret;
+	struct lm3630_chip_data *pchip = i2c_get_clientdata(client);
+
+	ret = regmap_write(pchip->regmap, REG_BRT_A, 0);
+	if (ret < 0)
+		dev_err(pchip->dev, "i2c failed to access register\n");
+
+	ret = regmap_write(pchip->regmap, REG_BRT_B, 0);
+	if (ret < 0)
+		dev_err(pchip->dev, "i2c failed to access register\n");
+
+	lm3630_backlight_unregister(pchip);
+	if (pchip->irq) {
+		free_irq(pchip->irq, pchip);
+		flush_workqueue(pchip->irqthread);
+		destroy_workqueue(pchip->irqthread);
+	}
+	return 0;
+}
+
+static const struct i2c_device_id lm3630_id[] = {
+	{LM3630_NAME, 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, lm3630_id);
+
+static struct i2c_driver lm3630_i2c_driver = {
+	.driver = {
+		   .name = LM3630_NAME,
+		   },
+	.probe = lm3630_probe,
+	.remove = __devexit_p(lm3630_remove),
+	.id_table = lm3630_id,
+};
+
+module_i2c_driver(lm3630_i2c_driver);
+
+MODULE_DESCRIPTION("Texas Instruments Backlight driver for LM3630");
+MODULE_AUTHOR("G.Shark Jeong <gshark.jeong@gmail.com>");
+MODULE_AUTHOR("Daniel Jeong <daniel.jeong@ti.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/backlight/lm3639_bl.c b/drivers/video/backlight/lm3639_bl.c
new file mode 100644
index 000000000000..c6915c6c3cd1
--- /dev/null
+++ b/drivers/video/backlight/lm3639_bl.c
@@ -0,0 +1,437 @@
+/*
+* Simple driver for Texas Instruments LM3639 Backlight + Flash LED driver chip
+* Copyright (C) 2012 Texas Instruments
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 2 as
+* published by the Free Software Foundation.
+*
+*/
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/backlight.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/uaccess.h>
+#include <linux/interrupt.h>
+#include <linux/regmap.h>
+#include <linux/platform_data/lm3639_bl.h>
+
+#define REG_DEV_ID	0x00
+#define REG_CHECKSUM	0x01
+#define REG_BL_CONF_1	0x02
+#define REG_BL_CONF_2	0x03
+#define REG_BL_CONF_3	0x04
+#define REG_BL_CONF_4	0x05
+#define REG_FL_CONF_1	0x06
+#define REG_FL_CONF_2	0x07
+#define REG_FL_CONF_3	0x08
+#define REG_IO_CTRL	0x09
+#define REG_ENABLE	0x0A
+#define REG_FLAG	0x0B
+#define REG_MAX		REG_FLAG
+
+struct lm3639_chip_data {
+	struct device *dev;
+	struct lm3639_platform_data *pdata;
+
+	struct backlight_device *bled;
+	struct led_classdev cdev_flash;
+	struct led_classdev cdev_torch;
+	struct regmap *regmap;
+
+	unsigned int bled_mode;
+	unsigned int bled_map;
+	unsigned int last_flag;
+};
+
+/* initialize chip */
+static int __devinit lm3639_chip_init(struct lm3639_chip_data *pchip)
+{
+	int ret;
+	unsigned int reg_val;
+	struct lm3639_platform_data *pdata = pchip->pdata;
+
+	/* input pins config. */
+	ret =
+	    regmap_update_bits(pchip->regmap, REG_BL_CONF_1, 0x08,
+			       pdata->pin_pwm);
+	if (ret < 0)
+		goto out;
+
+	reg_val = (pdata->pin_pwm & 0x40) | pdata->pin_strobe | pdata->pin_tx;
+	ret = regmap_update_bits(pchip->regmap, REG_IO_CTRL, 0x7C, reg_val);
+	if (ret < 0)
+		goto out;
+
+	/* init brightness */
+	ret = regmap_write(pchip->regmap, REG_BL_CONF_4, pdata->init_brt_led);
+	if (ret < 0)
+		goto out;
+
+	ret = regmap_write(pchip->regmap, REG_BL_CONF_3, pdata->init_brt_led);
+	if (ret < 0)
+		goto out;
+
+	/* output pins config. */
+	if (!pdata->init_brt_led)
+		reg_val = pdata->fled_pins | pdata->bled_pins;
+	else
+		reg_val = pdata->fled_pins | pdata->bled_pins | 0x01;
+
+	ret = regmap_update_bits(pchip->regmap, REG_ENABLE, 0x79, reg_val);
+	if (ret < 0)
+		goto out;
+
+	return ret;
+out:
+	dev_err(pchip->dev, "i2c failed to access register\n");
+	return ret;
+}
+
+/* update and get brightness */
+static int lm3639_bled_update_status(struct backlight_device *bl)
+{
+	int ret;
+	unsigned int reg_val;
+	struct lm3639_chip_data *pchip = bl_get_data(bl);
+	struct lm3639_platform_data *pdata = pchip->pdata;
+
+	ret = regmap_read(pchip->regmap, REG_FLAG, &reg_val);
+	if (ret < 0)
+		goto out;
+
+	if (reg_val != 0)
+		dev_info(pchip->dev, "last flag is 0x%x\n", reg_val);
+
+	/* pwm control */
+	if (pdata->pin_pwm) {
+		if (pdata->pwm_set_intensity)
+			pdata->pwm_set_intensity(bl->props.brightness,
+						 pdata->max_brt_led);
+		else
+			dev_err(pchip->dev,
+				"No pwm control func. in plat-data\n");
+		return bl->props.brightness;
+	}
+
+	/* i2c control and set brigtness */
+	ret = regmap_write(pchip->regmap, REG_BL_CONF_4, bl->props.brightness);
+	if (ret < 0)
+		goto out;
+	ret = regmap_write(pchip->regmap, REG_BL_CONF_3, bl->props.brightness);
+	if (ret < 0)
+		goto out;
+
+	if (!bl->props.brightness)
+		ret = regmap_update_bits(pchip->regmap, REG_ENABLE, 0x01, 0x00);
+	else
+		ret = regmap_update_bits(pchip->regmap, REG_ENABLE, 0x01, 0x01);
+	if (ret < 0)
+		goto out;
+
+	return bl->props.brightness;
+out:
+	dev_err(pchip->dev, "i2c failed to access registers\n");
+	return bl->props.brightness;
+}
+
+static int lm3639_bled_get_brightness(struct backlight_device *bl)
+{
+	int ret;
+	unsigned int reg_val;
+	struct lm3639_chip_data *pchip = bl_get_data(bl);
+	struct lm3639_platform_data *pdata = pchip->pdata;
+
+	if (pdata->pin_pwm) {
+		if (pdata->pwm_get_intensity)
+			bl->props.brightness = pdata->pwm_get_intensity();
+		else
+			dev_err(pchip->dev,
+				"No pwm control func. in plat-data\n");
+		return bl->props.brightness;
+	}
+
+	ret = regmap_read(pchip->regmap, REG_BL_CONF_1, &reg_val);
+	if (ret < 0)
+		goto out;
+	if (reg_val & 0x10)
+		ret = regmap_read(pchip->regmap, REG_BL_CONF_4, &reg_val);
+	else
+		ret = regmap_read(pchip->regmap, REG_BL_CONF_3, &reg_val);
+	if (ret < 0)
+		goto out;
+	bl->props.brightness = reg_val;
+
+	return bl->props.brightness;
+out:
+	dev_err(pchip->dev, "i2c failed to access register\n");
+	return bl->props.brightness;
+}
+
+static const struct backlight_ops lm3639_bled_ops = {
+	.options = BL_CORE_SUSPENDRESUME,
+	.update_status = lm3639_bled_update_status,
+	.get_brightness = lm3639_bled_get_brightness,
+};
+
+/* backlight mapping mode */
+static ssize_t lm3639_bled_mode_store(struct device *dev,
+				      struct device_attribute *devAttr,
+				      const char *buf, size_t size)
+{
+	ssize_t ret;
+	struct lm3639_chip_data *pchip = dev_get_drvdata(dev);
+	unsigned int state;
+
+	ret = kstrtouint(buf, 10, &state);
+	if (ret)
+		goto out_input;
+
+	if (!state)
+		ret =
+		    regmap_update_bits(pchip->regmap, REG_BL_CONF_1, 0x10,
+				       0x00);
+	else
+		ret =
+		    regmap_update_bits(pchip->regmap, REG_BL_CONF_1, 0x10,
+				       0x10);
+
+	if (ret < 0)
+		goto out;
+
+	return size;
+
+out:
+	dev_err(pchip->dev, "%s:i2c access fail to register\n", __func__);
+	return size;
+
+out_input:
+	dev_err(pchip->dev, "%s:input conversion fail\n", __func__);
+	return size;
+
+}
+
+static DEVICE_ATTR(bled_mode, 0666, NULL, lm3639_bled_mode_store);
+
+/* torch */
+static void lm3639_torch_brightness_set(struct led_classdev *cdev,
+					enum led_brightness brightness)
+{
+	int ret;
+	unsigned int reg_val;
+	struct lm3639_chip_data *pchip;
+
+	pchip = container_of(cdev, struct lm3639_chip_data, cdev_torch);
+
+	ret = regmap_read(pchip->regmap, REG_FLAG, &reg_val);
+	if (ret < 0)
+		goto out;
+	if (reg_val != 0)
+		dev_info(pchip->dev, "last flag is 0x%x\n", reg_val);
+
+	/* brightness 0 means off state */
+	if (!brightness) {
+		ret = regmap_update_bits(pchip->regmap, REG_ENABLE, 0x06, 0x00);
+		if (ret < 0)
+			goto out;
+		return;
+	}
+
+	ret = regmap_update_bits(pchip->regmap,
+				 REG_FL_CONF_1, 0x70, (brightness - 1) << 4);
+	if (ret < 0)
+		goto out;
+	ret = regmap_update_bits(pchip->regmap, REG_ENABLE, 0x06, 0x02);
+	if (ret < 0)
+		goto out;
+
+	return;
+out:
+	dev_err(pchip->dev, "i2c failed to access register\n");
+	return;
+}
+
+/* flash */
+static void lm3639_flash_brightness_set(struct led_classdev *cdev,
+					enum led_brightness brightness)
+{
+	int ret;
+	unsigned int reg_val;
+	struct lm3639_chip_data *pchip;
+
+	pchip = container_of(cdev, struct lm3639_chip_data, cdev_flash);
+
+	ret = regmap_read(pchip->regmap, REG_FLAG, &reg_val);
+	if (ret < 0)
+		goto out;
+	if (reg_val != 0)
+		dev_info(pchip->dev, "last flag is 0x%x\n", reg_val);
+
+	/* torch off before flash control */
+	ret = regmap_update_bits(pchip->regmap, REG_ENABLE, 0x06, 0x00);
+	if (ret < 0)
+		goto out;
+
+	/* brightness 0 means off state */
+	if (!brightness)
+		return;
+
+	ret = regmap_update_bits(pchip->regmap,
+				 REG_FL_CONF_1, 0x0F, brightness - 1);
+	if (ret < 0)
+		goto out;
+	ret = regmap_update_bits(pchip->regmap, REG_ENABLE, 0x06, 0x06);
+	if (ret < 0)
+		goto out;
+
+	return;
+out:
+	dev_err(pchip->dev, "i2c failed to access register\n");
+	return;
+}
+
+static const struct regmap_config lm3639_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = REG_MAX,
+};
+
+static int __devinit lm3639_probe(struct i2c_client *client,
+				  const struct i2c_device_id *id)
+{
+	int ret;
+	struct lm3639_chip_data *pchip;
+	struct lm3639_platform_data *pdata = client->dev.platform_data;
+	struct backlight_properties props;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		dev_err(&client->dev, "i2c functionality check fail.\n");
+		return -EOPNOTSUPP;
+	}
+
+	if (pdata == NULL) {
+		dev_err(&client->dev, "Needs Platform Data.\n");
+		return -ENODATA;
+	}
+
+	pchip = devm_kzalloc(&client->dev,
+			     sizeof(struct lm3639_chip_data), GFP_KERNEL);
+	if (!pchip)
+		return -ENOMEM;
+
+	pchip->pdata = pdata;
+	pchip->dev = &client->dev;
+
+	pchip->regmap = devm_regmap_init_i2c(client, &lm3639_regmap);
+	if (IS_ERR(pchip->regmap)) {
+		ret = PTR_ERR(pchip->regmap);
+		dev_err(&client->dev, "fail : allocate register map: %d\n",
+			ret);
+		return ret;
+	}
+	i2c_set_clientdata(client, pchip);
+
+	/* chip initialize */
+	ret = lm3639_chip_init(pchip);
+	if (ret < 0) {
+		dev_err(&client->dev, "fail : chip init\n");
+		goto err_out;
+	}
+
+	/* backlight */
+	props.type = BACKLIGHT_RAW;
+	props.brightness = pdata->init_brt_led;
+	props.max_brightness = pdata->max_brt_led;
+	pchip->bled =
+	    backlight_device_register("lm3639_bled", pchip->dev, pchip,
+				      &lm3639_bled_ops, &props);
+	if (IS_ERR(pchip->bled)) {
+		dev_err(&client->dev, "fail : backlight register\n");
+		ret = -EIO;
+		goto err_out;
+	}
+
+	ret = device_create_file(&(pchip->bled->dev), &dev_attr_bled_mode);
+	if (ret < 0) {
+		dev_err(&client->dev, "failed : add sysfs entries\n");
+		ret = -EIO;
+		goto err_bled_mode;
+	}
+
+	/* flash */
+	pchip->cdev_flash.name = "lm3639_flash";
+	pchip->cdev_flash.max_brightness = 16;
+	pchip->cdev_flash.brightness_set = lm3639_flash_brightness_set;
+	ret = led_classdev_register((struct device *)
+				    &client->dev, &pchip->cdev_flash);
+	if (ret < 0) {
+		dev_err(&client->dev, "fail : flash register\n");
+		ret = -EIO;
+		goto err_flash;
+	}
+
+	/* torch */
+	pchip->cdev_torch.name = "lm3639_torch";
+	pchip->cdev_torch.max_brightness = 8;
+	pchip->cdev_torch.brightness_set = lm3639_torch_brightness_set;
+	ret = led_classdev_register((struct device *)
+				    &client->dev, &pchip->cdev_torch);
+	if (ret < 0) {
+		dev_err(&client->dev, "fail : torch register\n");
+		ret = -EIO;
+		goto err_torch;
+	}
+
+	return 0;
+
+err_torch:
+	led_classdev_unregister(&pchip->cdev_flash);
+err_flash:
+	device_remove_file(&(pchip->bled->dev), &dev_attr_bled_mode);
+err_bled_mode:
+	backlight_device_unregister(pchip->bled);
+err_out:
+	return ret;
+}
+
+static int __devexit lm3639_remove(struct i2c_client *client)
+{
+	struct lm3639_chip_data *pchip = i2c_get_clientdata(client);
+
+	regmap_write(pchip->regmap, REG_ENABLE, 0x00);
+
+	if (&pchip->cdev_torch)
+		led_classdev_unregister(&pchip->cdev_torch);
+	if (&pchip->cdev_flash)
+		led_classdev_unregister(&pchip->cdev_flash);
+	if (pchip->bled) {
+		device_remove_file(&(pchip->bled->dev), &dev_attr_bled_mode);
+		backlight_device_unregister(pchip->bled);
+	}
+	return 0;
+}
+
+static const struct i2c_device_id lm3639_id[] = {
+	{LM3639_NAME, 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, lm3639_id);
+static struct i2c_driver lm3639_i2c_driver = {
+	.driver = {
+		   .name = LM3639_NAME,
+		   },
+	.probe = lm3639_probe,
+	.remove = __devexit_p(lm3639_remove),
+	.id_table = lm3639_id,
+};
+
+module_i2c_driver(lm3639_i2c_driver);
+
+MODULE_DESCRIPTION("Texas Instruments Backlight+Flash LED driver for LM3639");
+MODULE_AUTHOR("Daniel Jeong <daniel.jeong@ti.com>");
+MODULE_AUTHOR("G.Shark Jeong <gshark.jeong@gmail.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/backlight/ltv350qv.c b/drivers/video/backlight/ltv350qv.c
index 6c0f1ac0d32a..4066a5bbd826 100644
--- a/drivers/video/backlight/ltv350qv.c
+++ b/drivers/video/backlight/ltv350qv.c
@@ -75,7 +75,7 @@ static int ltv350qv_power_on(struct ltv350qv *lcd)
 	/* Power On Reset Display off State */
 	if (ltv350qv_write_reg(lcd, LTV_PWRCTL1, 0x0000))
 		goto err;
-	msleep(15);
+	usleep_range(15000, 16000);
 
 	/* Power Setting Function 1 */
 	if (ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE))
@@ -153,7 +153,7 @@ err_settings:
 err_power2:
 err_power1:
 	ltv350qv_write_reg(lcd, LTV_PWRCTL2, 0x0000);
-	msleep(1);
+	usleep_range(1000, 1100);
 err:
 	ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE);
 	return -EIO;
@@ -175,7 +175,7 @@ static int ltv350qv_power_off(struct ltv350qv *lcd)
 	ret |= ltv350qv_write_reg(lcd, LTV_PWRCTL2, 0x0000);
 
 	/* Wait at least 1 ms */
-	msleep(1);
+	usleep_range(1000, 1100);
 
 	/* Power down setting 2 */
 	ret |= ltv350qv_write_reg(lcd, LTV_PWRCTL1, LTV_VCOM_DISABLE);
diff --git a/drivers/video/backlight/platform_lcd.c b/drivers/video/backlight/platform_lcd.c
index b6672340d6c7..ca4f5d70fe10 100644
--- a/drivers/video/backlight/platform_lcd.c
+++ b/drivers/video/backlight/platform_lcd.c
@@ -16,6 +16,7 @@
 #include <linux/fb.h>
 #include <linux/backlight.h>
 #include <linux/lcd.h>
+#include <linux/of.h>
 #include <linux/slab.h>
 
 #include <video/platform_lcd.h>
@@ -145,6 +146,14 @@ static SIMPLE_DEV_PM_OPS(platform_lcd_pm_ops, platform_lcd_suspend,
 			platform_lcd_resume);
 #endif
 
+#ifdef CONFIG_OF
+static const struct of_device_id platform_lcd_of_match[] = {
+	{ .compatible = "platform-lcd" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, platform_lcd_of_match);
+#endif
+
 static struct platform_driver platform_lcd_driver = {
 	.driver		= {
 		.name	= "platform-lcd",
@@ -152,6 +161,7 @@ static struct platform_driver platform_lcd_driver = {
 #ifdef CONFIG_PM
 		.pm	= &platform_lcd_pm_ops,
 #endif
+		.of_match_table = of_match_ptr(platform_lcd_of_match),
 	},
 	.probe		= platform_lcd_probe,
 	.remove		= __devexit_p(platform_lcd_remove),
diff --git a/drivers/video/backlight/progear_bl.c b/drivers/video/backlight/progear_bl.c
deleted file mode 100644
index 69b35f02929e..000000000000
--- a/drivers/video/backlight/progear_bl.c
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
- *  Backlight Driver for Frontpath ProGear HX1050+
- *
- *  Copyright (c) 2006 Marcin Juszkiewicz
- *
- *  Based on Progear LCD driver by M Schacht
- *  <mschacht at alumni dot washington dot edu>
- *
- *  Based on Sharp's Corgi Backlight Driver
- *  Based on Backlight Driver for HP Jornada 680
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- *
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/mutex.h>
-#include <linux/fb.h>
-#include <linux/backlight.h>
-#include <linux/pci.h>
-
-#define PMU_LPCR               0xB0
-#define SB_MPS1                0x61
-#define HW_LEVEL_MAX           0x77
-#define HW_LEVEL_MIN           0x4f
-
-static struct pci_dev *pmu_dev = NULL;
-static struct pci_dev *sb_dev = NULL;
-
-static int progearbl_set_intensity(struct backlight_device *bd)
-{
-	int intensity = bd->props.brightness;
-
-	if (bd->props.power != FB_BLANK_UNBLANK)
-		intensity = 0;
-	if (bd->props.fb_blank != FB_BLANK_UNBLANK)
-		intensity = 0;
-
-	pci_write_config_byte(pmu_dev, PMU_LPCR, intensity + HW_LEVEL_MIN);
-
-	return 0;
-}
-
-static int progearbl_get_intensity(struct backlight_device *bd)
-{
-	u8 intensity;
-	pci_read_config_byte(pmu_dev, PMU_LPCR, &intensity);
-
-	return intensity - HW_LEVEL_MIN;
-}
-
-static const struct backlight_ops progearbl_ops = {
-	.get_brightness = progearbl_get_intensity,
-	.update_status = progearbl_set_intensity,
-};
-
-static int progearbl_probe(struct platform_device *pdev)
-{
-	struct backlight_properties props;
-	u8 temp;
-	struct backlight_device *progear_backlight_device;
-	int ret;
-
-	pmu_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M7101, NULL);
-	if (!pmu_dev) {
-		pr_err("ALI M7101 PMU not found.\n");
-		return -ENODEV;
-	}
-
-	sb_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL);
-	if (!sb_dev) {
-		pr_err("ALI 1533 SB not found.\n");
-		ret = -ENODEV;
-		goto put_pmu;
-	}
-
-	/*     Set SB_MPS1 to enable brightness control. */
-	pci_read_config_byte(sb_dev, SB_MPS1, &temp);
-	pci_write_config_byte(sb_dev, SB_MPS1, temp | 0x20);
-
-	memset(&props, 0, sizeof(struct backlight_properties));
-	props.type = BACKLIGHT_RAW;
-	props.max_brightness = HW_LEVEL_MAX - HW_LEVEL_MIN;
-	progear_backlight_device = backlight_device_register("progear-bl",
-							     &pdev->dev, NULL,
-							     &progearbl_ops,
-							     &props);
-	if (IS_ERR(progear_backlight_device)) {
-		ret = PTR_ERR(progear_backlight_device);
-		goto put_sb;
-	}
-
-	platform_set_drvdata(pdev, progear_backlight_device);
-
-	progear_backlight_device->props.power = FB_BLANK_UNBLANK;
-	progear_backlight_device->props.brightness = HW_LEVEL_MAX - HW_LEVEL_MIN;
-	progearbl_set_intensity(progear_backlight_device);
-
-	return 0;
-put_sb:
-	pci_dev_put(sb_dev);
-put_pmu:
-	pci_dev_put(pmu_dev);
-	return ret;
-}
-
-static int progearbl_remove(struct platform_device *pdev)
-{
-	struct backlight_device *bd = platform_get_drvdata(pdev);
-	backlight_device_unregister(bd);
-
-	return 0;
-}
-
-static struct platform_driver progearbl_driver = {
-	.probe = progearbl_probe,
-	.remove = progearbl_remove,
-	.driver = {
-		   .name = "progear-bl",
-		   },
-};
-
-static struct platform_device *progearbl_device;
-
-static int __init progearbl_init(void)
-{
-	int ret = platform_driver_register(&progearbl_driver);
-
-	if (ret)
-		return ret;
-	progearbl_device = platform_device_register_simple("progear-bl", -1,
-								NULL, 0);
-	if (IS_ERR(progearbl_device)) {
-		platform_driver_unregister(&progearbl_driver);
-		return PTR_ERR(progearbl_device);
-	}
-
-	return 0;
-}
-
-static void __exit progearbl_exit(void)
-{
-	pci_dev_put(pmu_dev);
-	pci_dev_put(sb_dev);
-
-	platform_device_unregister(progearbl_device);
-	platform_driver_unregister(&progearbl_driver);
-}
-
-module_init(progearbl_init);
-module_exit(progearbl_exit);
-
-MODULE_AUTHOR("Marcin Juszkiewicz <linux@hrw.one.pl>");
-MODULE_DESCRIPTION("ProGear Backlight Driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/video/geode/gx1fb_core.c b/drivers/video/geode/gx1fb_core.c
index 5a5d0928df33..265c5ed59ade 100644
--- a/drivers/video/geode/gx1fb_core.c
+++ b/drivers/video/geode/gx1fb_core.c
@@ -29,7 +29,7 @@ static int  crt_option = 1;
 static char panel_option[32] = "";
 
 /* Modes relevant to the GX1 (taken from modedb.c) */
-static const struct fb_videomode __devinitdata gx1_modedb[] = {
+static const struct fb_videomode __devinitconst gx1_modedb[] = {
 	/* 640x480-60 VESA */
 	{ NULL, 60, 640, 480, 39682,  48, 16, 33, 10, 96, 2,
 	  0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
diff --git a/drivers/video/gxt4500.c b/drivers/video/gxt4500.c
index 0fad23f810a3..0e9afa41d163 100644
--- a/drivers/video/gxt4500.c
+++ b/drivers/video/gxt4500.c
@@ -156,7 +156,7 @@ struct gxt4500_par {
 static char *mode_option;
 
 /* default mode: 1280x1024 @ 60 Hz, 8 bpp */
-static const struct fb_videomode defaultmode __devinitdata = {
+static const struct fb_videomode defaultmode __devinitconst = {
 	.refresh = 60,
 	.xres = 1280,
 	.yres = 1024,
@@ -581,7 +581,7 @@ static int gxt4500_blank(int blank, struct fb_info *info)
 	return 0;
 }
 
-static const struct fb_fix_screeninfo gxt4500_fix __devinitdata = {
+static const struct fb_fix_screeninfo gxt4500_fix __devinitconst = {
 	.id = "IBM GXT4500P",
 	.type = FB_TYPE_PACKED_PIXELS,
 	.visual = FB_VISUAL_PSEUDOCOLOR,
diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c
index b83f36190cae..5c067816a81d 100644
--- a/drivers/video/i810/i810_main.c
+++ b/drivers/video/i810/i810_main.c
@@ -97,7 +97,7 @@ static int i810fb_blank      (int blank_mode, struct fb_info *info);
 static void i810fb_release_resource       (struct fb_info *info, struct i810fb_par *par);
 
 /* PCI */
-static const char *i810_pci_list[] __devinitdata = {
+static const char * const i810_pci_list[] __devinitconst = {
 	"Intel(R) 810 Framebuffer Device"                                 ,
 	"Intel(R) 810-DC100 Framebuffer Device"                           ,
 	"Intel(R) 810E Framebuffer Device"                                ,
diff --git a/drivers/video/jz4740_fb.c b/drivers/video/jz4740_fb.c
index de366937c933..3c63fc24bb1f 100644
--- a/drivers/video/jz4740_fb.c
+++ b/drivers/video/jz4740_fb.c
@@ -136,7 +136,7 @@ struct jzfb {
 	uint32_t pseudo_palette[16];
 };
 
-static const struct fb_fix_screeninfo jzfb_fix __devinitdata = {
+static const struct fb_fix_screeninfo jzfb_fix __devinitconst = {
 	.id		= "JZ4740 FB",
 	.type		= FB_TYPE_PACKED_PIXELS,
 	.visual		= FB_VISUAL_TRUECOLOR,