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[ARM] Orion: GPIO support

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Signed-off-by: Tzachi Perelstein <tzachi@marvell.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Acked-by: David Brownell <david-b@pacbell.net>
This commit is contained in:
Tzachi Perelstein
2008-01-26 15:03:45 +00:00
committed by Russell King
parent c67de5b3c0
commit 01af72e4e3
5 changed files with 243 additions and 1 deletions
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include/asm-arm/arch-orion/gpio.h
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/*
* include/asm-arm/arch-orion/gpio.h
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
extern int gpio_request(unsigned pin, const char *label);
extern void gpio_free(unsigned pin);
extern int gpio_direction_input(unsigned pin);
extern int gpio_direction_output(unsigned pin, int value);
extern int gpio_get_value(unsigned pin);
extern void gpio_set_value(unsigned pin, int value);
extern void gpio_display(void); /* debug */
static inline int gpio_to_irq(int pin)
{
return pin + IRQ_ORION_GPIO_START;
}
static inline int irq_to_gpio(int irq)
{
return irq - IRQ_ORION_GPIO_START;
}
#include <asm-generic/gpio.h> /* cansleep wrappers */