diff options
| author | Dmitry Baryshkov <dbaryshkov@gmail.com> | 2008-04-10 14:31:47 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-04-10 16:31:37 +0200 |
| commit | 45528e38173e7d8c03821850e8fd1ddbf16f2b3d (patch) | |
| tree | 96ed1a1e340bb28e47d8b4b9e1de4b42e0d12bd6 /include/asm-arm/arch-sa1100/gpio.h | |
| parent | [ARM] 4957/1: Drop special macro SCOOP_REG in favour if ioread16/iowrite16. (diff) | |
| download | linux-45528e38173e7d8c03821850e8fd1ddbf16f2b3d.tar.xz linux-45528e38173e7d8c03821850e8fd1ddbf16f2b3d.zip | |
[ARM] 4961/1: gpiolib support for SA-1100 architecture
This adds gpiolib support for the SA-1100 arch:
- Move all GPIO API functions from generic.c into gpio.c
- Convert all gpio functions into gpiolib callbacks.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/arch-sa1100/gpio.h')
| -rw-r--r-- | include/asm-arm/arch-sa1100/gpio.h | 31 |
1 files changed, 12 insertions, 19 deletions
diff --git a/include/asm-arm/arch-sa1100/gpio.h b/include/asm-arm/arch-sa1100/gpio.h index e7a9d26e22a8..93d3395b102d 100644 --- a/include/asm-arm/arch-sa1100/gpio.h +++ b/include/asm-arm/arch-sa1100/gpio.h @@ -26,35 +26,28 @@ #include <asm/hardware.h> #include <asm/irq.h> - -static inline int gpio_request(unsigned gpio, const char *label) -{ - return 0; -} - -static inline void gpio_free(unsigned gpio) -{ - return; -} - -extern int gpio_direction_input(unsigned gpio); -extern int gpio_direction_output(unsigned gpio, int value); - +#include <asm-generic/gpio.h> static inline int gpio_get_value(unsigned gpio) { - return GPLR & GPIO_GPIO(gpio); + if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX)) + return GPLR & GPIO_GPIO(gpio); + else + return __gpio_get_value(gpio); } static inline void gpio_set_value(unsigned gpio, int value) { - if (value) - GPSR = GPIO_GPIO(gpio); + if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX)) + if (value) + GPSR = GPIO_GPIO(gpio); + else + GPCR = GPIO_GPIO(gpio); else - GPCR = GPIO_GPIO(gpio); + __gpio_set_value(gpio, value); } -#include <asm-generic/gpio.h> /* cansleep wrappers */ +#define gpio_cansleep __gpio_cansleep static inline unsigned gpio_to_irq(unsigned gpio) { |