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authorDmitry Baryshkov <dbaryshkov@gmail.com>2008-04-10 13:31:47 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-04-10 15:31:37 +0100
commit45528e38173e7d8c03821850e8fd1ddbf16f2b3d (patch)
tree96ed1a1e340bb28e47d8b4b9e1de4b42e0d12bd6 /include/asm-arm
parentc353faa4b2abd8d5142640b880532c97a0807460 (diff)
[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')
-rw-r--r--include/asm-arm/arch-sa1100/gpio.h31
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 e7a9d26e22a..93d3395b102 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)
{