b43: use bcma_chipco_gpio_control()

With this patch the same registers are written, but this access is now
protected by a lock.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index c4d0cc5..ae4eeb3 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -2780,9 +2780,7 @@
 	switch (dev->dev->bus_type) {
 #ifdef CONFIG_B43_BCMA
 	case B43_BUS_BCMA:
-		bcma_cc_write32(&dev->dev->bdev->bus->drv_cc, BCMA_CC_GPIOCTL,
-				(bcma_cc_read32(&dev->dev->bdev->bus->drv_cc,
-					BCMA_CC_GPIOCTL) & ~mask) | set);
+		bcma_chipco_gpio_control(&dev->dev->bdev->bus->drv_cc, mask, set);
 		break;
 #endif
 #ifdef CONFIG_B43_SSB
@@ -2807,8 +2805,7 @@
 	switch (dev->dev->bus_type) {
 #ifdef CONFIG_B43_BCMA
 	case B43_BUS_BCMA:
-		bcma_cc_write32(&dev->dev->bdev->bus->drv_cc, BCMA_CC_GPIOCTL,
-				0);
+		bcma_chipco_gpio_control(&dev->dev->bdev->bus->drv_cc, ~0, 0);
 		break;
 #endif
 #ifdef CONFIG_B43_SSB