diff options
| author | Kevin Hilman <khilman@linaro.org> | 2013-12-20 20:59:04 +0400 |
|---|---|---|
| committer | Kevin Hilman <khilman@linaro.org> | 2013-12-20 20:59:30 +0400 |
| commit | 490b929d42d2a321887f9538a83fc9f215675f15 (patch) | |
| tree | 04fe7161f92c568839605f92c8f1c8730216f739 /drivers/gpio/gpio-mpc8xxx.c | |
| parent | 23621799f24c3c4e8e8dcdf5fdeb3ebd2be148f9 (diff) | |
| parent | ef43eff3447f30b4a3cfc61813902c2e57c20245 (diff) | |
| download | linux-490b929d42d2a321887f9538a83fc9f215675f15.tar.xz | |
Merge branch 'efm32/soc' into next/soc
From Uwe Kleine-König:
* efm32/soc: (1003 commits)
ARM: device trees for Energy Micro's EFM32 Cortex-M3 SoCs
ARM: new platform for Energy Micro's EFM32 Cortex-M3 SoCs
+Linux 3.13-rc4
Signed-off-by: Kevin Hilman <khilman@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-mpc8xxx.c')
| -rw-r--r-- | drivers/gpio/gpio-mpc8xxx.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c index 914e859e3eda..d7d6d72eba33 100644 --- a/drivers/gpio/gpio-mpc8xxx.c +++ b/drivers/gpio/gpio-mpc8xxx.c @@ -70,10 +70,14 @@ static int mpc8572_gpio_get(struct gpio_chip *gc, unsigned int gpio) u32 val; struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc); struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm); + u32 out_mask, out_shadow; - val = in_be32(mm->regs + GPIO_DAT) & ~in_be32(mm->regs + GPIO_DIR); + out_mask = in_be32(mm->regs + GPIO_DIR); - return (val | mpc8xxx_gc->data) & mpc8xxx_gpio2mask(gpio); + val = in_be32(mm->regs + GPIO_DAT) & ~out_mask; + out_shadow = mpc8xxx_gc->data & out_mask; + + return (val | out_shadow) & mpc8xxx_gpio2mask(gpio); } static int mpc8xxx_gpio_get(struct gpio_chip *gc, unsigned int gpio) |