4 files changed, 78 insertions, 30 deletions

diff --git a/drivers/net/wireless/ti/wl1251/cmd.c b/drivers/net/wireless/ti/wl1251/cmd.c
index 223649bcaa5a..bf1fa18b9786 100644
--- a/drivers/net/wireless/ti/wl1251/cmd.c
+++ b/drivers/net/wireless/ti/wl1251/cmd.c
@@ -448,7 +448,7 @@ int wl1251_cmd_scan(struct wl1251 *wl, u8 *ssid, size_t ssid_len,
          * Note: This bug may be caused by the fw's DTIM handling.
          */
         if (is_zero_ether_addr(wl->bssid))
-                cmd->params.scan_options |= WL1251_SCAN_OPT_PRIORITY_HIGH;
+                cmd->params.scan_options |= cpu_to_le16(WL1251_SCAN_OPT_PRIORITY_HIGH);
         cmd->params.num_channels = n_channels;
         cmd->params.num_probe_requests = n_probes;
         cmd->params.tx_rate = cpu_to_le16(1 << 1); /* 2 Mbps */
diff --git a/drivers/net/wireless/ti/wl1251/sdio.c b/drivers/net/wireless/ti/wl1251/sdio.c
index e2b3d9c541e8..b661f896e9fe 100644
--- a/drivers/net/wireless/ti/wl1251/sdio.c
+++ b/drivers/net/wireless/ti/wl1251/sdio.c
@@ -28,6 +28,7 @@
 #include <linux/wl12xx.h>
 #include <linux/irq.h>
 #include <linux/pm_runtime.h>
+#include <linux/gpio.h>
 
 #include "wl1251.h"
 
@@ -182,8 +183,9 @@ static int wl1251_sdio_set_power(struct wl1251 *wl, bool enable)
                  * callback in case it wants to do any additional setup,
                  * for example enabling clock buffer for the module.
                  */
-                if (wl->set_power)
-                        wl->set_power(true);
+                if (gpio_is_valid(wl->power_gpio))
+                        gpio_set_value(wl->power_gpio, true);
+
 
                 ret = pm_runtime_get_sync(&func->dev);
                 if (ret < 0) {
@@ -203,8 +205,8 @@ static int wl1251_sdio_set_power(struct wl1251 *wl, bool enable)
                 if (ret < 0)
                         goto out;
 
-                if (wl->set_power)
-                        wl->set_power(false);
+                if (gpio_is_valid(wl->power_gpio))
+                        gpio_set_value(wl->power_gpio, false);
         }
 
 out:
@@ -227,7 +229,7 @@ static int wl1251_sdio_probe(struct sdio_func *func,
         struct wl1251 *wl;
         struct ieee80211_hw *hw;
         struct wl1251_sdio *wl_sdio;
-        const struct wl12xx_platform_data *wl12xx_board_data;
+        const struct wl1251_platform_data *wl1251_board_data;
 
         hw = wl1251_alloc_hw();
         if (IS_ERR(hw))
@@ -254,11 +256,20 @@ static int wl1251_sdio_probe(struct sdio_func *func,
         wl->if_priv = wl_sdio;
         wl->if_ops = &wl1251_sdio_ops;
 
-        wl12xx_board_data = wl12xx_get_platform_data();
-        if (!IS_ERR(wl12xx_board_data)) {
-                wl->set_power = wl12xx_board_data->set_power;
-                wl->irq = wl12xx_board_data->irq;
-                wl->use_eeprom = wl12xx_board_data->use_eeprom;
+        wl1251_board_data = wl1251_get_platform_data();
+        if (!IS_ERR(wl1251_board_data)) {
+                wl->power_gpio = wl1251_board_data->power_gpio;
+                wl->irq = wl1251_board_data->irq;
+                wl->use_eeprom = wl1251_board_data->use_eeprom;
+        }
+
+        if (gpio_is_valid(wl->power_gpio)) {
+                ret = devm_gpio_request(&func->dev, wl->power_gpio,
+                                                                "wl1251 power");
+                if (ret) {
+                        wl1251_error("Failed to request gpio: %d\n", ret);
+                        goto disable;
+                }
         }
 
         if (wl->irq) {
diff --git a/drivers/net/wireless/ti/wl1251/spi.c b/drivers/net/wireless/ti/wl1251/spi.c
index 1342f81e683d..b06d36d99362 100644
--- a/drivers/net/wireless/ti/wl1251/spi.c
+++ b/drivers/net/wireless/ti/wl1251/spi.c
@@ -26,6 +26,10 @@
 #include <linux/crc7.h>
 #include <linux/spi/spi.h>
 #include <linux/wl12xx.h>
+#include <linux/gpio.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/regulator/consumer.h>
 
 #include "wl1251.h"
 #include "reg.h"
@@ -221,8 +225,8 @@ static void wl1251_spi_disable_irq(struct wl1251 *wl)
 
 static int wl1251_spi_set_power(struct wl1251 *wl, bool enable)
 {
-        if (wl->set_power)
-                wl->set_power(enable);
+        if (gpio_is_valid(wl->power_gpio))
+                gpio_set_value(wl->power_gpio, enable);
 
         return 0;
 }
@@ -238,13 +242,13 @@ static const struct wl1251_if_operations wl1251_spi_ops = {
 
 static int wl1251_spi_probe(struct spi_device *spi)
 {
-        struct wl12xx_platform_data *pdata;
+        struct wl1251_platform_data *pdata = dev_get_platdata(&spi->dev);
+        struct device_node *np = spi->dev.of_node;
         struct ieee80211_hw *hw;
         struct wl1251 *wl;
         int ret;
 
-        pdata = dev_get_platdata(&spi->dev);
-        if (!pdata) {
+        if (!np && !pdata) {
                 wl1251_error("no platform data");
                 return -ENODEV;
         }
@@ -271,22 +275,42 @@ static int wl1251_spi_probe(struct spi_device *spi)
                 goto out_free;
         }
 
-        wl->set_power = pdata->set_power;
-        if (!wl->set_power) {
-                wl1251_error("set power function missing in platform data");
-                return -ENODEV;
+        if (np) {
+                wl->use_eeprom = of_property_read_bool(np, "ti,wl1251-has-eeprom");
+                wl->power_gpio = of_get_named_gpio(np, "ti,power-gpio", 0);
+        } else if (pdata) {
+                wl->power_gpio = pdata->power_gpio;
+                wl->use_eeprom = pdata->use_eeprom;
+        }
+
+        if (wl->power_gpio == -EPROBE_DEFER) {
+                ret = -EPROBE_DEFER;
+                goto out_free;
+        }
+
+        if (gpio_is_valid(wl->power_gpio)) {
+                ret = devm_gpio_request_one(&spi->dev, wl->power_gpio,
+                                        GPIOF_OUT_INIT_LOW, "wl1251 power");
+                if (ret) {
+                        wl1251_error("Failed to request gpio: %d\n", ret);
+                        goto out_free;
+                }
+        } else {
+                wl1251_error("set power gpio missing in platform data");
+                ret = -ENODEV;
+                goto out_free;
         }
 
         wl->irq = spi->irq;
         if (wl->irq < 0) {
                 wl1251_error("irq missing in platform data");
-                return -ENODEV;
+                ret = -ENODEV;
+                goto out_free;
         }
 
-        wl->use_eeprom = pdata->use_eeprom;
-
         irq_set_status_flags(wl->irq, IRQ_NOAUTOEN);
-        ret = request_irq(wl->irq, wl1251_irq, 0, DRIVER_NAME, wl);
+        ret = devm_request_irq(&spi->dev, wl->irq, wl1251_irq, 0,
+                                                        DRIVER_NAME, wl);
         if (ret < 0) {
                 wl1251_error("request_irq() failed: %d", ret);
                 goto out_free;
@@ -294,16 +318,26 @@ static int wl1251_spi_probe(struct spi_device *spi)
 
         irq_set_irq_type(wl->irq, IRQ_TYPE_EDGE_RISING);
 
+        wl->vio = devm_regulator_get(&spi->dev, "vio");
+        if (IS_ERR(wl->vio)) {
+                ret = PTR_ERR(wl->vio);
+                wl1251_error("vio regulator missing: %d", ret);
+                goto out_free;
+        }
+
+        ret = regulator_enable(wl->vio);
+        if (ret)
+                goto out_free;
+
         ret = wl1251_init_ieee80211(wl);
         if (ret)
-                goto out_irq;
+                goto disable_regulator;
 
         return 0;
 
- out_irq:
-        free_irq(wl->irq, wl);
-
- out_free:
+disable_regulator:
+        regulator_disable(wl->vio);
+out_free:
         ieee80211_free_hw(hw);
 
         return ret;
@@ -315,6 +349,7 @@ static int wl1251_spi_remove(struct spi_device *spi)
 
         free_irq(wl->irq, wl);
         wl1251_free_hw(wl);
+        regulator_disable(wl->vio);
 
         return 0;
 }
diff --git a/drivers/net/wireless/ti/wl1251/wl1251.h b/drivers/net/wireless/ti/wl1251/wl1251.h
index 235617a7716d..16dae5269175 100644
--- a/drivers/net/wireless/ti/wl1251/wl1251.h
+++ b/drivers/net/wireless/ti/wl1251/wl1251.h
@@ -276,10 +276,12 @@ struct wl1251 {
         void *if_priv;
         const struct wl1251_if_operations *if_ops;
 
-        void (*set_power)(bool enable);
+        int power_gpio;
         int irq;
         bool use_eeprom;
 
+        struct regulator *vio;
+
         spinlock_t wl_lock;
 
         enum wl1251_state state;