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authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-26 10:07:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-26 10:07:27 -0700
commit811da237ba39d86846645379763655ddf0f7907e (patch)
treee06cf5f94139fa9f9b40d9e285bc089bfdef219b /arch/powerpc/sysdev/cpm_common.c
parentb8e6c91c74e9f0279b7c51048779b3d62da60b88 (diff)
parent9bdbb9633281b58ff483ede723f8c4a6344cab2f (diff)
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: powerpc: Update defconfigs for most non-embedded platforms powerpc: Export CMO_PageSize powerpc/ps3: Fix ioremap of spu shadow regs powerpc/ps3: Rework htab code to remove ioremap powerpc/ps3: Update ps3_defconfig powerpc/cell/oprofile: Avoid double vfree of profile buffer powerpc: Update defconfigs for FSL PPC boards powerpc: Add cuImage.mpc866ads to the bootwrapper as a cuboot-8xx target cpm2: Fix race condition in CPM2 GPIO library. powerpc: fix memory leaks in QE library powerpc/85xx: TQM8548: DTS file fixes and cleanup powerpc: Fix whitespace merge in mpc8641 hpcn device tree
Diffstat (limited to 'arch/powerpc/sysdev/cpm_common.c')
-rw-r--r--arch/powerpc/sysdev/cpm_common.c37
1 files changed, 26 insertions, 11 deletions
diff --git a/arch/powerpc/sysdev/cpm_common.c b/arch/powerpc/sysdev/cpm_common.c
index 53da8a079f9..00d3d17c84a 100644
--- a/arch/powerpc/sysdev/cpm_common.c
+++ b/arch/powerpc/sysdev/cpm_common.c
@@ -254,15 +254,11 @@ static int cpm2_gpio32_get(struct gpio_chip *gc, unsigned int gpio)
return !!(in_be32(&iop->dat) & pin_mask);
}
-static void cpm2_gpio32_set(struct gpio_chip *gc, unsigned int gpio, int value)
+static void __cpm2_gpio32_set(struct of_mm_gpio_chip *mm_gc, u32 pin_mask,
+ int value)
{
- struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
struct cpm2_gpio32_chip *cpm2_gc = to_cpm2_gpio32_chip(mm_gc);
struct cpm2_ioports __iomem *iop = mm_gc->regs;
- unsigned long flags;
- u32 pin_mask = 1 << (31 - gpio);
-
- spin_lock_irqsave(&cpm2_gc->lock, flags);
if (value)
cpm2_gc->cpdata |= pin_mask;
@@ -270,6 +266,18 @@ static void cpm2_gpio32_set(struct gpio_chip *gc, unsigned int gpio, int value)
cpm2_gc->cpdata &= ~pin_mask;
out_be32(&iop->dat, cpm2_gc->cpdata);
+}
+
+static void cpm2_gpio32_set(struct gpio_chip *gc, unsigned int gpio, int value)
+{
+ struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
+ struct cpm2_gpio32_chip *cpm2_gc = to_cpm2_gpio32_chip(mm_gc);
+ unsigned long flags;
+ u32 pin_mask = 1 << (31 - gpio);
+
+ spin_lock_irqsave(&cpm2_gc->lock, flags);
+
+ __cpm2_gpio32_set(mm_gc, pin_mask, value);
spin_unlock_irqrestore(&cpm2_gc->lock, flags);
}
@@ -277,14 +285,17 @@ static void cpm2_gpio32_set(struct gpio_chip *gc, unsigned int gpio, int value)
static int cpm2_gpio32_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
{
struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
+ struct cpm2_gpio32_chip *cpm2_gc = to_cpm2_gpio32_chip(mm_gc);
struct cpm2_ioports __iomem *iop = mm_gc->regs;
- u32 pin_mask;
+ unsigned long flags;
+ u32 pin_mask = 1 << (31 - gpio);
- pin_mask = 1 << (31 - gpio);
+ spin_lock_irqsave(&cpm2_gc->lock, flags);
setbits32(&iop->dir, pin_mask);
+ __cpm2_gpio32_set(mm_gc, pin_mask, val);
- cpm2_gpio32_set(gc, gpio, val);
+ spin_unlock_irqrestore(&cpm2_gc->lock, flags);
return 0;
}
@@ -292,13 +303,17 @@ static int cpm2_gpio32_dir_out(struct gpio_chip *gc, unsigned int gpio, int val)
static int cpm2_gpio32_dir_in(struct gpio_chip *gc, unsigned int gpio)
{
struct of_mm_gpio_chip *mm_gc = to_of_mm_gpio_chip(gc);
+ struct cpm2_gpio32_chip *cpm2_gc = to_cpm2_gpio32_chip(mm_gc);
struct cpm2_ioports __iomem *iop = mm_gc->regs;
- u32 pin_mask;
+ unsigned long flags;
+ u32 pin_mask = 1 << (31 - gpio);
- pin_mask = 1 << (31 - gpio);
+ spin_lock_irqsave(&cpm2_gc->lock, flags);
clrbits32(&iop->dir, pin_mask);
+ spin_unlock_irqrestore(&cpm2_gc->lock, flags);
+
return 0;
}