ARM: at91: gpio: implement request

[sfrench/cifs-2.6.git] / arch / arm / mach-at91 / gpio.c

diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c
index be42cf0e74bddd39ded6e1b54d7f17d351a24bc1..3b8f463bfa1de7fae7206c2ffa45b83785a0b4d8 100644 (file)
--- a/arch/arm/mach-at91/gpio.c
+++ b/arch/arm/mach-at91/gpio.c
@@ -46,6 +46,7 @@ struct at91_gpio_chip {
 
 #define to_at91_gpio_chip(c) container_of(c, struct at91_gpio_chip, chip)
 
+static int at91_gpiolib_request(struct gpio_chip *chip, unsigned offset);
 static void at91_gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip);
 static void at91_gpiolib_set(struct gpio_chip *chip, unsigned offset, int val);
 static int at91_gpiolib_get(struct gpio_chip *chip, unsigned offset);
@@ -59,6 +60,7 @@ static int at91_gpiolib_to_irq(struct gpio_chip *chip, unsigned offset);
        {                                                               \
                .chip = {                                               \
                        .label            = name,                       \
+                       .request          = at91_gpiolib_request,       \
                        .direction_input  = at91_gpiolib_direction_input, \
                        .direction_output = at91_gpiolib_direction_output, \
                        .get              = at91_gpiolib_get,           \
@@ -862,6 +864,16 @@ void __init at91_gpio_irq_setup(void)
 }
 
 /* gpiolib support */
+static int at91_gpiolib_request(struct gpio_chip *chip, unsigned offset)
+{
+       struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip);
+       void __iomem *pio = at91_gpio->regbase;
+       unsigned mask = 1 << offset;
+
+       __raw_writel(mask, pio + PIO_PER);
+       return 0;
+}
+
 static int at91_gpiolib_direction_input(struct gpio_chip *chip,
                                        unsigned offset)
 {