wl1251: move power GPIO handling into the driver

Move the power GPIO handling from the board code into
the driver. This is a dependency for device tree support.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 21 insertions, 12 deletions

diff --git a/drivers/net/wireless/ti/wl1251/spi.c b/drivers/net/wireless/ti/wl1251/spi.c
index 62403a147592..6abcbc3f7fc7 100644
--- a/drivers/net/wireless/ti/wl1251/spi.c
+++ b/drivers/net/wireless/ti/wl1251/spi.c
@@ -26,6 +26,7 @@
 #include <linux/crc7.h>
 #include <linux/spi/spi.h>
 #include <linux/wl12xx.h>
+#include <linux/gpio.h>
 
 #include "wl1251.h"
 #include "reg.h"
@@ -221,8 +222,8 @@ 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;
 }
@@ -271,22 +272,33 @@ 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;
+	wl->power_gpio = pdata->power_gpio;
+
+	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;
@@ -296,13 +308,10 @@ static int wl1251_spi_probe(struct spi_device *spi)
 
 	ret = wl1251_init_ieee80211(wl);
 	if (ret)
-		goto out_irq;
+		goto out_free;
 
 	return 0;
 
- out_irq:
-	free_irq(wl->irq, wl);
-
  out_free:
 	ieee80211_free_hw(hw);