diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-25 12:06:33 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-05-25 12:06:33 -0700 |
| commit | ec96e2fe954c23a54bfdf2673437a39e193a1822 (patch) | |
| tree | e4041c68ef20a3337c56aefc8db785156307edd1 /arch/arm/mach-s5p6440/gpio.c | |
| parent | 8e9815a0f8882aaa68645b001bb7538db8886802 (diff) | |
| parent | f949c0edd84101bfd30b3e7389c1a12b067e561d (diff) | |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (103 commits)
ARM: 6141/1: Add audio support part in arch/arm/mach-w90x900
ARM: 5939/1: ARM: Add option CMDLINE_FORCE to force usage of the in-kernel cmdline
ARM: 6140/1: silence a bogus sparse warning in unwind.c
ARM: mach-at91: duplicated include
ARM: arch/arm/nwfpe/fpsr.h: Checkpatch cleanup
ARM: arch/arm/mach-shark/pci.c: Checkpatch cleanup
ARM: arch/arm/nwfpe/ChangeLog: Checkpatch cleanup
ARM: arch/arm/mach-sa1100/leds.c: Checkpatch cleanup
ARM: arch/arm/mach-h720x/common.h: Checkpatch cleanup
ARM: arch/arm/mach-footbridge/ebsa285-pci.c: Checkpatch cleanup
ARM: arch/arm/mach-clps711x/Makefile.boot: Checkpatch cleanup
ARM: arch/arm/boot/bootp/bootp.lds: Checkpatch cleanup
ARM: SPEAR6xx: remove duplicated #include
ARM: s3c6400_defconfig: Add NAND driver
ARM: s3c6400_defconfig: enable sound as modules
ARM: s3c6400_defconfig: enable power management
ARM: s5pv210_defconfig: Update s5pv210_defconfig to v2.6.34
ARM: s5pc110_defconfig: Update s5pc110_defconfig to v2.6.34
ARM: s5p6442_defconfig: Update s5p6442_defconfig to v2.6.34
ARM: s5p6440_defconfig: Update s5p6440_defconfig to v2.6.34
...
Diffstat (limited to 'arch/arm/mach-s5p6440/gpio.c')
| -rw-r--r-- | arch/arm/mach-s5p6440/gpio.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/mach-s5p6440/gpio.c b/arch/arm/mach-s5p6440/gpio.c index 262dc75d5be..92efc05b1ba 100644 --- a/arch/arm/mach-s5p6440/gpio.c +++ b/arch/arm/mach-s5p6440/gpio.c @@ -46,6 +46,7 @@ static int s5p6440_gpiolib_rbank_4bit2_input(struct gpio_chip *chip, void __iomem *base = ourchip->base; void __iomem *regcon = base; unsigned long con; + unsigned long flags; switch (offset) { case 6: @@ -63,10 +64,14 @@ static int s5p6440_gpiolib_rbank_4bit2_input(struct gpio_chip *chip, break; } + s3c_gpio_lock(ourchip, flags); + con = __raw_readl(regcon); con &= ~(0xf << con_4bit_shift(offset)); __raw_writel(con, regcon); + s3c_gpio_unlock(ourchip, flags); + return 0; } @@ -78,6 +83,7 @@ static int s5p6440_gpiolib_rbank_4bit2_output(struct gpio_chip *chip, void __iomem *regcon = base; unsigned long con; unsigned long dat; + unsigned long flags; unsigned con_offset = offset; switch (con_offset) { @@ -96,6 +102,8 @@ static int s5p6440_gpiolib_rbank_4bit2_output(struct gpio_chip *chip, break; } + s3c_gpio_lock(ourchip, flags); + con = __raw_readl(regcon); con &= ~(0xf << con_4bit_shift(con_offset)); con |= 0x1 << con_4bit_shift(con_offset); @@ -109,6 +117,8 @@ static int s5p6440_gpiolib_rbank_4bit2_output(struct gpio_chip *chip, __raw_writel(con, regcon); __raw_writel(dat, base + GPIODAT_OFF); + s3c_gpio_unlock(ourchip, flags); + return 0; } @@ -117,6 +127,7 @@ int s5p6440_gpio_setcfg_4bit_rbank(struct s3c_gpio_chip *chip, { void __iomem *reg = chip->base; unsigned int shift; + unsigned long flags; u32 con; switch (off) { @@ -142,11 +153,15 @@ int s5p6440_gpio_setcfg_4bit_rbank(struct s3c_gpio_chip *chip, cfg <<= shift; } + s3c_gpio_lock(chip, flags); + con = __raw_readl(reg); con &= ~(0xf << shift); con |= cfg; __raw_writel(con, reg); + s3c_gpio_unlock(chip, flags); + return 0; } |