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| author | Anton Arapov <anton@redhat.com> | 2012-10-29 11:15:37 +0100 |
|---|---|---|
| committer | Anton Arapov <anton@redhat.com> | 2012-10-29 11:15:37 +0100 |
| commit | 7d558cd9c7b18e4b16953265aa0da45e63f3b968 (patch) | |
| tree | 7135d5a810768c9c619346282ee9cfdf1765e225 /arch/arm/mach-shmobile/include/mach/gpio.h | |
| parent | 985ef6b2108ed28ffd5f6630e1e0fce2e2a775f2 (diff) | |
| download | kernel-uprobes-7d558cd9c7b18e4b16953265aa0da45e63f3b968.tar.gz kernel-uprobes-7d558cd9c7b18e4b16953265aa0da45e63f3b968.tar.xz kernel-uprobes-7d558cd9c7b18e4b16953265aa0da45e63f3b968.zip | |
Signed-off-by: Anton Arapov <anton@redhat.com>
Diffstat (limited to 'arch/arm/mach-shmobile/include/mach/gpio.h')
| -rw-r--r-- | arch/arm/mach-shmobile/include/mach/gpio.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/include/mach/gpio.h b/arch/arm/mach-shmobile/include/mach/gpio.h index de795b42232..844507d937c 100644 --- a/arch/arm/mach-shmobile/include/mach/gpio.h +++ b/arch/arm/mach-shmobile/include/mach/gpio.h @@ -13,6 +13,7 @@ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/sh_pfc.h> +#include <linux/io.h> #ifdef CONFIG_GPIOLIB @@ -27,4 +28,35 @@ static inline int irq_to_gpio(unsigned int irq) #endif /* CONFIG_GPIOLIB */ +/* + * FIXME !! + * + * current gpio frame work doesn't have + * the method to control only pull up/down/free. + * this function should be replaced by correct gpio function + */ +static inline void __init gpio_direction_none(u32 addr) +{ + __raw_writeb(0x00, addr); +} + +static inline void __init gpio_request_pullup(u32 addr) +{ + u8 data = __raw_readb(addr); + + data &= 0x0F; + data |= 0xC0; + __raw_writeb(data, addr); +} + +static inline void __init gpio_request_pulldown(u32 addr) +{ + u8 data = __raw_readb(addr); + + data &= 0x0F; + data |= 0xA0; + + __raw_writeb(data, addr); +} + #endif /* __ASM_ARCH_GPIO_H */ |