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authorRafał Miłecki <zajec5@gmail.com>2013-06-18 07:33:40 +0200
committerJohn W. Linville <linville@tuxdriver.com>2013-06-18 14:46:46 -0400
commit7b5d6043de31290de98e9232cbd9a07968aef5bd (patch)
tree228e02ecbbe6b22041b8f6a5e7eba43bb852f5f9 /drivers/ssb/driver_chipcommon_sflash.c
parente861ef523cd91270d108edc394e648b1f9e6fbd5 (diff)
downloadlinux-7b5d6043de31290de98e9232cbd9a07968aef5bd.tar.gz
ssb: register serial flash as platform device
This allows writing MTD driver working as a platform driver. In
platform_data it will receive struct ssb_sflash, which contains all
important data about flash (window, size).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/ssb/driver_chipcommon_sflash.c')
-rw-r--r--drivers/ssb/driver_chipcommon_sflash.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/ssb/driver_chipcommon_sflash.c b/drivers/ssb/driver_chipcommon_sflash.c
index 205f1c499c46..e84cf04f4416 100644
--- a/drivers/ssb/driver_chipcommon_sflash.c
+++ b/drivers/ssb/driver_chipcommon_sflash.c
@@ -9,6 +9,19 @@
 
 #include "ssb_private.h"
 
+static struct resource ssb_sflash_resource = {
+	.name	= "ssb_sflash",
+	.start	= SSB_FLASH2,
+	.end	= 0,
+	.flags  = IORESOURCE_MEM | IORESOURCE_READONLY,
+};
+
+struct platform_device ssb_sflash_dev = {
+	.name		= "ssb_sflash",
+	.resource	= &ssb_sflash_resource,
+	.num_resources	= 1,
+};
+
 struct ssb_sflash_tbl_e {
 	char *name;
 	u32 id;
@@ -141,6 +154,12 @@ int ssb_sflash_init(struct ssb_chipcommon *cc)
 	pr_info("Found %s serial flash (blocksize: 0x%X, blocks: %d)\n",
 		e->name, e->blocksize, e->numblocks);
 
+	/* Prepare platform device, but don't register it yet. It's too early,
+	 * malloc (required by device_private_init) is not available yet. */
+	ssb_sflash_dev.resource[0].end = ssb_sflash_dev.resource[0].start +
+					 sflash->size;
+	ssb_sflash_dev.dev.platform_data = sflash;
+
 	pr_err("Serial flash support is not implemented yet!\n");
 
 	return -ENOTSUPP;