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authorGrant Likely <grant.likely@secretlab.ca>2010-05-22 00:36:56 -0600
committerGrant Likely <grant.likely@secretlab.ca>2010-05-22 00:36:56 -0600
commitcf9b59e9d3e008591d1f54830f570982bb307a0d (patch)
tree113478ce8fd8c832ba726ffdf59b82cb46356476 /arch/arm/plat-samsung/gpio.c
parent44504b2bebf8b5823c59484e73096a7d6574471d (diff)
parentf4b87dee923342505e1ddba8d34ce9de33e75050 (diff)
Merge remote branch 'origin' into secretlab/next-devicetree
Merging in current state of Linus' tree to deal with merge conflicts and build failures in vio.c after merge. Conflicts: drivers/i2c/busses/i2c-cpm.c drivers/i2c/busses/i2c-mpc.c drivers/net/gianfar.c Also fixed up one line in arch/powerpc/kernel/vio.c to use the correct node pointer. Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'arch/arm/plat-samsung/gpio.c')
-rw-r--r--arch/arm/plat-samsung/gpio.c15
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)