diff options
Diffstat (limited to 'arch/arm/mach-sa1100/generic.c')
| -rw-r--r-- | arch/arm/mach-sa1100/generic.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c index e510295c2580..9e13c8358ea7 100644 --- a/arch/arm/mach-sa1100/generic.c +++ b/arch/arm/mach-sa1100/generic.c @@ -27,6 +27,7 @@ #include <asm/mach/map.h> #include <asm/mach/flash.h> #include <asm/irq.h> +#include <asm/gpio.h> #include "generic.h" @@ -138,6 +139,37 @@ unsigned long long sched_clock(void) return v; } +int gpio_direction_input(unsigned gpio) +{ + unsigned long flags; + + if (gpio > GPIO_MAX) + return -EINVAL; + + local_irq_save(flags); + GPDR &= ~GPIO_GPIO(gpio); + local_irq_restore(flags); + return 0; +} + +EXPORT_SYMBOL(gpio_direction_input); + +int gpio_direction_output(unsigned gpio, int value) +{ + unsigned long flags; + + if (gpio > GPIO_MAX) + return -EINVAL; + + local_irq_save(flags); + gpio_set_value(gpio, value); + GPDR |= GPIO_GPIO(gpio); + local_irq_restore(flags); + return 0; +} + +EXPORT_SYMBOL(gpio_direction_output); + /* * Default power-off for SA1100 */ |