10 files changed, 164 insertions, 66 deletions

diff --git a/drivers/net/wireless/ti/wilink_platform_data.c b/drivers/net/wireless/ti/wilink_platform_data.c
index a92bd3e89796..ea0e359bdb43 100644
--- a/drivers/net/wireless/ti/wilink_platform_data.c
+++ b/drivers/net/wireless/ti/wilink_platform_data.c
@@ -23,31 +23,6 @@
 #include <linux/err.h>
 #include <linux/wl12xx.h>
 
-static struct wl12xx_platform_data *wl12xx_platform_data;
-
-int __init wl12xx_set_platform_data(const struct wl12xx_platform_data *data)
-{
-	if (wl12xx_platform_data)
-		return -EBUSY;
-	if (!data)
-		return -EINVAL;
-
-	wl12xx_platform_data = kmemdup(data, sizeof(*data), GFP_KERNEL);
-	if (!wl12xx_platform_data)
-		return -ENOMEM;
-
-	return 0;
-}
-
-struct wl12xx_platform_data *wl12xx_get_platform_data(void)
-{
-	if (!wl12xx_platform_data)
-		return ERR_PTR(-ENODEV);
-
-	return wl12xx_platform_data;
-}
-EXPORT_SYMBOL(wl12xx_get_platform_data);
-
 static struct wl1251_platform_data *wl1251_platform_data;
 
 int __init wl1251_set_platform_data(const struct wl1251_platform_data *data)
diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
index 144d1f8ba473..af0fe2e17151 100644
--- a/drivers/net/wireless/ti/wl12xx/main.c
+++ b/drivers/net/wireless/ti/wl12xx/main.c
@@ -24,8 +24,6 @@
 
 #include <linux/err.h>
 
-#include <linux/wl12xx.h>
-
 #include "../wlcore/wlcore.h"
 #include "../wlcore/debug.h"
 #include "../wlcore/io.h"
@@ -1770,11 +1768,44 @@ wl12xx_iface_combinations[] = {
 	},
 };
 
+static const struct wl12xx_clock wl12xx_refclock_table[] = {
+	{ 19200000,	false,	WL12XX_REFCLOCK_19	},
+	{ 26000000,	false,	WL12XX_REFCLOCK_26	},
+	{ 26000000,	true,	WL12XX_REFCLOCK_26_XTAL	},
+	{ 38400000,	false,	WL12XX_REFCLOCK_38	},
+	{ 38400000,	true,	WL12XX_REFCLOCK_38_XTAL	},
+	{ 52000000,	false,	WL12XX_REFCLOCK_52	},
+	{ 0,		false,	0 }
+};
+
+static const struct wl12xx_clock wl12xx_tcxoclock_table[] = {
+	{ 16368000,	true,	WL12XX_TCXOCLOCK_16_368	},
+	{ 16800000,	true,	WL12XX_TCXOCLOCK_16_8	},
+	{ 19200000,	true,	WL12XX_TCXOCLOCK_19_2	},
+	{ 26000000,	true,	WL12XX_TCXOCLOCK_26	},
+	{ 32736000,	true,	WL12XX_TCXOCLOCK_32_736	},
+	{ 33600000,	true,	WL12XX_TCXOCLOCK_33_6	},
+	{ 38400000,	true,	WL12XX_TCXOCLOCK_38_4	},
+	{ 52000000,	true,	WL12XX_TCXOCLOCK_52	},
+	{ 0,		false,	0 }
+};
+
+static int wl12xx_get_clock_idx(const struct wl12xx_clock *table,
+				u32 freq, bool xtal)
+{
+	int i;
+
+	for (i = 0; table[i].freq != 0; i++)
+		if ((table[i].freq == freq) && (table[i].xtal == xtal))
+			return table[i].hw_idx;
+
+	return -EINVAL;
+}
+
 static int wl12xx_setup(struct wl1271 *wl)
 {
 	struct wl12xx_priv *priv = wl->priv;
 	struct wlcore_platdev_data *pdev_data = dev_get_platdata(&wl->pdev->dev);
-	struct wl12xx_platform_data *pdata = pdev_data->pdata;
 
 	BUILD_BUG_ON(WL12XX_MAX_LINKS > WLCORE_MAX_LINKS);
 	BUILD_BUG_ON(WL12XX_MAX_AP_STATIONS > WL12XX_MAX_LINKS);
@@ -1799,7 +1830,17 @@ static int wl12xx_setup(struct wl1271 *wl)
 	wl12xx_conf_init(wl);
 
 	if (!fref_param) {
-		priv->ref_clock = pdata->board_ref_clock;
+		priv->ref_clock = wl12xx_get_clock_idx(wl12xx_refclock_table,
+						pdev_data->ref_clock_freq,
+						pdev_data->ref_clock_xtal);
+		if (priv->ref_clock < 0) {
+			wl1271_error("Invalid ref_clock frequency (%d Hz, %s)",
+				     pdev_data->ref_clock_freq,
+				     pdev_data->ref_clock_xtal ?
+				     "XTAL" : "not XTAL");
+
+			return priv->ref_clock;
+		}
 	} else {
 		if (!strcmp(fref_param, "19.2"))
 			priv->ref_clock = WL12XX_REFCLOCK_19;
@@ -1817,9 +1858,17 @@ static int wl12xx_setup(struct wl1271 *wl)
 			wl1271_error("Invalid fref parameter %s", fref_param);
 	}
 
-	if (!tcxo_param) {
-		priv->tcxo_clock = pdata->board_tcxo_clock;
-	} else {
+	if (!tcxo_param && pdev_data->tcxo_clock_freq) {
+		priv->tcxo_clock = wl12xx_get_clock_idx(wl12xx_tcxoclock_table,
+						pdev_data->tcxo_clock_freq,
+						true);
+		if (priv->tcxo_clock < 0) {
+			wl1271_error("Invalid tcxo_clock frequency (%d Hz)",
+				     pdev_data->tcxo_clock_freq);
+
+			return priv->tcxo_clock;
+		}
+	} else if (tcxo_param) {
 		if (!strcmp(tcxo_param, "19.2"))
 			priv->tcxo_clock = WL12XX_TCXOCLOCK_19_2;
 		else if (!strcmp(tcxo_param, "26"))
diff --git a/drivers/net/wireless/ti/wl12xx/wl12xx.h b/drivers/net/wireless/ti/wl12xx/wl12xx.h
index 75c92658bfea..5952e99ace1b 100644
--- a/drivers/net/wireless/ti/wl12xx/wl12xx.h
+++ b/drivers/net/wireless/ti/wl12xx/wl12xx.h
@@ -82,6 +82,34 @@ struct wl12xx_priv {
 	struct wl127x_rx_mem_pool_addr *rx_mem_addr;
 };
 
+/* Reference clock values */
+enum {
+	WL12XX_REFCLOCK_19	= 0, /* 19.2 MHz */
+	WL12XX_REFCLOCK_26	= 1, /* 26 MHz */
+	WL12XX_REFCLOCK_38	= 2, /* 38.4 MHz */
+	WL12XX_REFCLOCK_52	= 3, /* 52 MHz */
+	WL12XX_REFCLOCK_38_XTAL = 4, /* 38.4 MHz, XTAL */
+	WL12XX_REFCLOCK_26_XTAL = 5, /* 26 MHz, XTAL */
+};
+
+/* TCXO clock values */
+enum {
+	WL12XX_TCXOCLOCK_19_2	= 0, /* 19.2MHz */
+	WL12XX_TCXOCLOCK_26	= 1, /* 26 MHz */
+	WL12XX_TCXOCLOCK_38_4	= 2, /* 38.4MHz */
+	WL12XX_TCXOCLOCK_52	= 3, /* 52 MHz */
+	WL12XX_TCXOCLOCK_16_368	= 4, /* 16.368 MHz */
+	WL12XX_TCXOCLOCK_32_736	= 5, /* 32.736 MHz */
+	WL12XX_TCXOCLOCK_16_8	= 6, /* 16.8 MHz */
+	WL12XX_TCXOCLOCK_33_6	= 7, /* 33.6 MHz */
+};
+
+struct wl12xx_clock {
+	u32	freq;
+	bool	xtal;
+	u8	hw_idx;
+};
+
 struct wl12xx_fw_packet_counters {
 	/* Cumulative counter of released packets per AC */
 	u8 tx_released_pkts[NUM_TX_QUEUES];
diff --git a/drivers/net/wireless/ti/wlcore/boot.c b/drivers/net/wireless/ti/wlcore/boot.c
index 77752b03f189..19b7ec7b69c2 100644
--- a/drivers/net/wireless/ti/wlcore/boot.c
+++ b/drivers/net/wireless/ti/wlcore/boot.c
@@ -22,7 +22,6 @@
  */
 
 #include <linux/slab.h>
-#include <linux/wl12xx.h>
 #include <linux/export.h>
 
 #include "debug.h"
diff --git a/drivers/net/wireless/ti/wlcore/debugfs.c b/drivers/net/wireless/ti/wlcore/debugfs.c
index 68f3bf229b5a..eb43f94a1597 100644
--- a/drivers/net/wireless/ti/wlcore/debugfs.c
+++ b/drivers/net/wireless/ti/wlcore/debugfs.c
@@ -502,7 +502,7 @@ static ssize_t driver_state_read(struct file *file, char __user *user_buf,
 	DRIVER_STATE_PRINT_HEX(irq);
 	/* TODO: ref_clock and tcxo_clock were moved to wl12xx priv */
 	DRIVER_STATE_PRINT_HEX(hw_pg_ver);
-	DRIVER_STATE_PRINT_HEX(platform_quirks);
+	DRIVER_STATE_PRINT_HEX(irq_flags);
 	DRIVER_STATE_PRINT_HEX(chip.id);
 	DRIVER_STATE_PRINT_STR(chip.fw_ver_str);
 	DRIVER_STATE_PRINT_STR(chip.phy_fw_ver_str);
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 1e136993580f..0be807951afe 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -25,8 +25,8 @@
 #include <linux/firmware.h>
 #include <linux/etherdevice.h>
 #include <linux/vmalloc.h>
-#include <linux/wl12xx.h>
 #include <linux/interrupt.h>
+#include <linux/irq.h>
 
 #include "wlcore.h"
 #include "debug.h"
@@ -538,7 +538,7 @@ static int wlcore_irq_locked(struct wl1271 *wl)
 	 * In case edge triggered interrupt must be used, we cannot iterate
 	 * more than once without introducing race conditions with the hardirq.
 	 */
-	if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
+	if (wl->irq_flags & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING))
 		loopcount = 1;
 
 	wl1271_debug(DEBUG_IRQ, "IRQ work");
@@ -6249,7 +6249,6 @@ struct ieee80211_hw *wlcore_alloc_hw(size_t priv_size, u32 aggr_buf_size,
 	wl->ap_ps_map = 0;
 	wl->ap_fw_ps_map = 0;
 	wl->quirks = 0;
-	wl->platform_quirks = 0;
 	wl->system_hlid = WL12XX_SYSTEM_HLID;
 	wl->active_sta_count = 0;
 	wl->active_link_count = 0;
@@ -6390,8 +6389,8 @@ static void wlcore_nvs_cb(const struct firmware *fw, void *context)
 	struct wl1271 *wl = context;
 	struct platform_device *pdev = wl->pdev;
 	struct wlcore_platdev_data *pdev_data = dev_get_platdata(&pdev->dev);
-	struct wl12xx_platform_data *pdata = pdev_data->pdata;
-	unsigned long irqflags;
+	struct resource *res;
+
 	int ret;
 	irq_handler_t hardirq_fn = NULL;
 
@@ -6418,19 +6417,23 @@ static void wlcore_nvs_cb(const struct firmware *fw, void *context)
 	/* adjust some runtime configuration parameters */
 	wlcore_adjust_conf(wl);
 
-	wl->irq = platform_get_irq(pdev, 0);
-	wl->platform_quirks = pdata->platform_quirks;
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!res) {
+		wl1271_error("Could not get IRQ resource");
+		goto out_free_nvs;
+	}
+
+	wl->irq = res->start;
+	wl->irq_flags = res->flags & IRQF_TRIGGER_MASK;
 	wl->if_ops = pdev_data->if_ops;
 
-	if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ) {
-		irqflags = IRQF_TRIGGER_RISING;
+	if (wl->irq_flags & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING))
 		hardirq_fn = wlcore_hardirq;
-	} else {
-		irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;
-	}
+	else
+		wl->irq_flags |= IRQF_ONESHOT;
 
 	ret = request_threaded_irq(wl->irq, hardirq_fn, wlcore_irq,
-				   irqflags, pdev->name, wl);
+				   wl->irq_flags, pdev->name, wl);
 	if (ret < 0) {
 		wl1271_error("request_irq() failed: %d", ret);
 		goto out_free_nvs;
@@ -6441,7 +6444,7 @@ static void wlcore_nvs_cb(const struct firmware *fw, void *context)
 	if (!ret) {
 		wl->irq_wake_enabled = true;
 		device_init_wakeup(wl->dev, 1);
-		if (pdata->pwr_in_suspend)
+		if (pdev_data->pwr_in_suspend)
 			wl->hw->wiphy->wowlan = &wlcore_wowlan_support;
 	}
 #endif
diff --git a/drivers/net/wireless/ti/wlcore/sdio.c b/drivers/net/wireless/ti/wlcore/sdio.c
index d3dd7bfdf3f1..ea7e07abca4e 100644
--- a/drivers/net/wireless/ti/wlcore/sdio.c
+++ b/drivers/net/wireless/ti/wlcore/sdio.c
@@ -31,9 +31,10 @@
 #include <linux/mmc/card.h>
 #include <linux/mmc/host.h>
 #include <linux/gpio.h>
-#include <linux/wl12xx.h>
 #include <linux/pm_runtime.h>
 #include <linux/printk.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
 
 #include "wlcore.h"
 #include "wl12xx_80211.h"
@@ -214,6 +215,52 @@ static struct wl1271_if_operations sdio_ops = {
 	.set_block_size = wl1271_sdio_set_block_size,
 };
 
+#ifdef CONFIG_OF
+static const struct of_device_id wlcore_sdio_of_match_table[] = {
+	{ .compatible = "ti,wl1271" },
+	{ .compatible = "ti,wl1273" },
+	{ .compatible = "ti,wl1281" },
+	{ .compatible = "ti,wl1283" },
+	{ .compatible = "ti,wl1801" },
+	{ .compatible = "ti,wl1805" },
+	{ .compatible = "ti,wl1807" },
+	{ .compatible = "ti,wl1831" },
+	{ .compatible = "ti,wl1835" },
+	{ .compatible = "ti,wl1837" },
+	{ }
+};
+
+static int wlcore_probe_of(struct device *dev, int *irq,
+			   struct wlcore_platdev_data *pdev_data)
+{
+	struct device_node *np = dev->of_node;
+
+	if (!np || !of_match_node(wlcore_sdio_of_match_table, np))
+		return -ENODATA;
+
+	*irq = irq_of_parse_and_map(np, 0);
+	if (!*irq) {
+		dev_err(dev, "No irq in platform data\n");
+		kfree(pdev_data);
+		return -EINVAL;
+	}
+
+	/* optional clock frequency params */
+	of_property_read_u32(np, "ref-clock-frequency",
+			     &pdev_data->ref_clock_freq);
+	of_property_read_u32(np, "tcxo-clock-frequency",
+			     &pdev_data->tcxo_clock_freq);
+
+	return 0;
+}
+#else
+static int wlcore_probe_of(struct device *dev, int *irq,
+			   struct wlcore_platdev_data *pdev_data)
+{
+	return -ENODATA;
+}
+#endif
+
 static int wl1271_probe(struct sdio_func *func,
 				  const struct sdio_device_id *id)
 {
@@ -222,6 +269,7 @@ static int wl1271_probe(struct sdio_func *func,
 	struct resource res[1];
 	mmc_pm_flag_t mmcflags;
 	int ret = -ENOMEM;
+	int irq;
 	const char *chip_family;
 
 	/* We are only able to handle the wlan function */
@@ -245,19 +293,15 @@ static int wl1271_probe(struct sdio_func *func,
 	/* Use block mode for transferring over one block size of data */
 	func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
 
-	pdev_data.pdata = wl12xx_get_platform_data();
-	if (IS_ERR(pdev_data.pdata)) {
-		ret = PTR_ERR(pdev_data.pdata);
-		dev_err(glue->dev, "missing wlan platform data: %d\n", ret);
+	if (wlcore_probe_of(&func->dev, &irq, &pdev_data))
 		goto out_free_glue;
-	}
 
 	/* if sdio can keep power while host is suspended, enable wow */
 	mmcflags = sdio_get_host_pm_caps(func);
 	dev_dbg(glue->dev, "sdio PM caps = 0x%x\n", mmcflags);
 
 	if (mmcflags & MMC_PM_KEEP_POWER)
-		pdev_data.pdata->pwr_in_suspend = true;
+		pdev_data.pwr_in_suspend = true;
 
 	sdio_set_drvdata(func, glue);
 
@@ -286,8 +330,9 @@ static int wl1271_probe(struct sdio_func *func,
 
 	memset(res, 0x00, sizeof(res));
 
-	res[0].start = pdev_data.pdata->irq;
-	res[0].flags = IORESOURCE_IRQ;
+	res[0].start = irq;
+	res[0].flags = IORESOURCE_IRQ |
+		       irqd_get_trigger_type(irq_get_irq_data(irq));
 	res[0].name = "irq";
 
 	ret = platform_device_add_resources(glue->core, res, ARRAY_SIZE(res));
diff --git a/drivers/net/wireless/ti/wlcore/spi.c b/drivers/net/wireless/ti/wlcore/spi.c
index 69601f6741d9..f1ac2839d97c 100644
--- a/drivers/net/wireless/ti/wlcore/spi.c
+++ b/drivers/net/wireless/ti/wlcore/spi.c
@@ -331,11 +331,7 @@ static int wl1271_probe(struct spi_device *spi)
 
 	memset(&pdev_data, 0x00, sizeof(pdev_data));
 
-	pdev_data.pdata = dev_get_platdata(&spi->dev);
-	if (!pdev_data.pdata) {
-		dev_err(&spi->dev, "no platform data\n");
-		return -ENODEV;
-	}
+	/* TODO: add DT parsing when needed */
 
 	pdev_data.if_ops = &spi_ops;
 
diff --git a/drivers/net/wireless/ti/wlcore/wlcore.h b/drivers/net/wireless/ti/wlcore/wlcore.h
index d599c869e6e8..7f363fa566a3 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore.h
@@ -197,6 +197,8 @@ struct wl1271 {
 
 	int irq;
 
+	int irq_flags;
+
 	spinlock_t wl_lock;
 
 	enum wlcore_state state;
@@ -404,9 +406,6 @@ struct wl1271 {
 	/* Quirks of specific hardware revisions */
 	unsigned int quirks;
 
-	/* Platform limitations */
-	unsigned int platform_quirks;
-
 	/* number of currently active RX BA sessions */
 	int ba_rx_session_count;
 
diff --git a/drivers/net/wireless/ti/wlcore/wlcore_i.h b/drivers/net/wireless/ti/wlcore/wlcore_i.h
index 3396ce5a934d..39efc6d78b10 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore_i.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore_i.h
@@ -201,8 +201,12 @@ struct wl1271_if_operations {
 };
 
 struct wlcore_platdev_data {
-	struct wl12xx_platform_data *pdata;
 	struct wl1271_if_operations *if_ops;
+
+	bool ref_clock_xtal;	/* specify whether the clock is XTAL or not */
+	u32 ref_clock_freq;	/* in Hertz */
+	u32 tcxo_clock_freq;	/* in Hertz, tcxo is always XTAL */
+	bool pwr_in_suspend;
 };
 
 #define MAX_NUM_KEYS 14