ARM: Merge for-2635/gpio2

Merge branch 'for-2635/gpio2' into for-linus/samsung2

1 files changed, 9 insertions, 6 deletions

diff --git a/arch/arm/plat-samsung/gpio.c b/arch/arm/plat-samsung/gpio.c
index 28d2ab8a08db..b83a83351cea 100644
--- a/arch/arm/plat-samsung/gpio.c
+++ b/arch/arm/plat-samsung/gpio.c
@@ -15,6 +15,7 @@
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/gpio.h>
+#include <linux/spinlock.h>
 
 #include <plat/gpio-core.h>
 
@@ -52,14 +53,14 @@ static int s3c_gpiolib_input(struct gpio_chip *chip, unsigned offset)
         unsigned long flags;
         unsigned long con;
 
-        local_irq_save(flags);
+        s3c_gpio_lock(ourchip, flags);
 
         con = __raw_readl(base + 0x00);
         con &= ~(3 << (offset * 2));
 
         __raw_writel(con, base + 0x00);
 
-        local_irq_restore(flags);
+        s3c_gpio_unlock(ourchip, flags);
         return 0;
 }
 
@@ -72,7 +73,7 @@ static int s3c_gpiolib_output(struct gpio_chip *chip,
         unsigned long dat;
         unsigned long con;
 
-        local_irq_save(flags);
+        s3c_gpio_lock(ourchip, flags);
 
         dat = __raw_readl(base + 0x04);
         dat &= ~(1 << offset);
@@ -87,7 +88,7 @@ static int s3c_gpiolib_output(struct gpio_chip *chip,
         __raw_writel(con, base + 0x00);
         __raw_writel(dat, base + 0x04);
 
-        local_irq_restore(flags);
+        s3c_gpio_unlock(ourchip, flags);
         return 0;
 }
 
@@ -99,7 +100,7 @@ static void s3c_gpiolib_set(struct gpio_chip *chip,
         unsigned long flags;
         unsigned long dat;
 
-        local_irq_save(flags);
+        s3c_gpio_lock(ourchip, flags);
 
         dat = __raw_readl(base + 0x04);
         dat &= ~(1 << offset);
@@ -107,7 +108,7 @@ static void s3c_gpiolib_set(struct gpio_chip *chip,
                 dat |= 1 << offset;
         __raw_writel(dat, base + 0x04);
 
-        local_irq_restore(flags);
+        s3c_gpio_unlock(ourchip, flags);
 }
 
 static int s3c_gpiolib_get(struct gpio_chip *chip, unsigned offset)
@@ -131,6 +132,8 @@ __init void s3c_gpiolib_add(struct s3c_gpio_chip *chip)
         BUG_ON(!gc->label);
         BUG_ON(!gc->ngpio);
 
+        spin_lock_init(&chip->lock);
+
         if (!gc->direction_input)
                 gc->direction_input = s3c_gpiolib_input;
         if (!gc->direction_output)