[ARM] 4988/1: Add GPIO lib support to the EP93xx

Adds support for the generic GPIO lib to the EP93xx family. The gpio
handling code has been moved from core.c to a new file called gpio.c.
The GPIO based IRQ code has not been changed.

Signed-off-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 4 insertions, 17 deletions

diff --git a/include/asm-arm/arch-ep93xx/gpio.h b/include/asm-arm/arch-ep93xx/gpio.h
index 9b1864bbd9a8..186e7c715f8a 100644
--- a/include/asm-arm/arch-ep93xx/gpio.h
+++ b/include/asm-arm/arch-ep93xx/gpio.h
@@ -101,30 +101,17 @@
 
 /* new generic GPIO API - see Documentation/gpio.txt */
 
-static inline int gpio_request(unsigned gpio, const char *label)
-{
-        if (gpio > EP93XX_GPIO_LINE_MAX)
-                return -EINVAL;
-        return 0;
-}
+#include <asm-generic/gpio.h>
 
-static inline void gpio_free(unsigned gpio)
-{
-}
-
-int gpio_direction_input(unsigned gpio);
-int gpio_direction_output(unsigned gpio, int value);
-int gpio_get_value(unsigned gpio);
-void gpio_set_value(unsigned gpio, int value);
-
-#include <asm-generic/gpio.h> /* cansleep wrappers */
+#define gpio_get_value  __gpio_get_value
+#define gpio_set_value  __gpio_set_value
+#define gpio_cansleep   __gpio_cansleep
 
 /*
  * Map GPIO A0..A7  (0..7)  to irq 64..71,
  *          B0..B7  (7..15) to irq 72..79, and
  *          F0..F7 (16..24) to irq 80..87.
  */
-
 static inline int gpio_to_irq(unsigned gpio)
 {
         if (gpio <= EP93XX_GPIO_LINE_MAX_IRQ)