diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-07-16 00:29:07 +0200 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-07-16 00:29:07 +0200 |
commit | 82638844d9a8581bbf33201cc209a14876eca167 (patch) | |
tree | 961d7f9360194421a71aa644a9d0c176a960ce49 /arch/arm/plat-iop/gpio.c | |
parent | 9982fbface82893e77d211fbabfbd229da6bdde6 (diff) | |
parent | 63cf13b77ab785e87c867defa8545e6d4a989774 (diff) |
Merge branch 'linus' into cpus4096
Conflicts:
arch/x86/xen/smp.c
kernel/sched_rt.c
net/iucv/iucv.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/plat-iop/gpio.c')
-rw-r--r-- | arch/arm/plat-iop/gpio.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/arm/plat-iop/gpio.c b/arch/arm/plat-iop/gpio.c index eda43608341..640e498c12e 100644 --- a/arch/arm/plat-iop/gpio.c +++ b/arch/arm/plat-iop/gpio.c @@ -11,6 +11,10 @@ */ #include <linux/device.h> +#include <linux/init.h> +#include <linux/types.h> +#include <linux/errno.h> +#include <linux/gpio.h> #include <asm/hardware/iop3xx.h> void gpio_line_config(int line, int direction) @@ -46,3 +50,42 @@ void gpio_line_set(int line, int value) local_irq_restore(flags); } EXPORT_SYMBOL(gpio_line_set); + +static int iop3xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio) +{ + gpio_line_config(gpio, GPIO_IN); + return 0; +} + +static int iop3xx_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int level) +{ + gpio_line_set(gpio, level); + gpio_line_config(gpio, GPIO_OUT); + return 0; +} + +static int iop3xx_gpio_get_value(struct gpio_chip *chip, unsigned gpio) +{ + return gpio_line_get(gpio); +} + +static void iop3xx_gpio_set_value(struct gpio_chip *chip, unsigned gpio, int value) +{ + gpio_line_set(gpio, value); +} + +static struct gpio_chip iop3xx_chip = { + .label = "iop3xx", + .direction_input = iop3xx_gpio_direction_input, + .get = iop3xx_gpio_get_value, + .direction_output = iop3xx_gpio_direction_output, + .set = iop3xx_gpio_set_value, + .base = 0, + .ngpio = IOP3XX_N_GPIOS, +}; + +static int __init iop3xx_gpio_setup(void) +{ + return gpiochip_add(&iop3xx_chip); +} +arch_initcall(iop3xx_gpio_setup); |