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Diffstat (limited to 'arch/arm/mach-at91/gpio.c')
-rw-r--r--arch/arm/mach-at91/gpio.c15
1 files changed, 0 insertions, 15 deletions
diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c
index f2236f0..ae4772e 100644
--- a/arch/arm/mach-at91/gpio.c
+++ b/arch/arm/mach-at91/gpio.c
@@ -44,13 +44,11 @@ static int at91_gpiolib_direction_output(struct gpio_chip *chip,
unsigned offset, int val);
static int at91_gpiolib_direction_input(struct gpio_chip *chip,
unsigned offset);
-static int at91_gpiolib_request(struct gpio_chip *chip, unsigned offset);
#define AT91_GPIO_CHIP(name, base_gpio, nr_gpio) \
{ \
.chip = { \
.label = name, \
- .request = at91_gpiolib_request, \
.direction_input = at91_gpiolib_direction_input, \
.direction_output = at91_gpiolib_direction_output, \
.get = at91_gpiolib_get, \
@@ -588,19 +586,6 @@ static void at91_gpiolib_set(struct gpio_chip *chip, unsigned offset, int val)
__raw_writel(mask, pio + (val ? PIO_SODR : PIO_CODR));
}
-static int at91_gpiolib_request(struct gpio_chip *chip, unsigned offset)
-{
- unsigned pin = chip->base + offset;
- void __iomem *pio = pin_to_controller(pin);
- unsigned mask = pin_to_mask(pin);
-
- /* Cannot request GPIOs that are in alternate function mode */
- if (!(__raw_readl(pio + PIO_PSR) & mask))
- return -EPERM;
-
- return 0;
-}
-
static void at91_gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip)
{
int i;