diff options
Diffstat (limited to 'arch/arm/mach-at91/gpio.c')
| -rw-r--r-- | arch/arm/mach-at91/gpio.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c index 0dc3f5ead7b..e8f5831e573 100644 --- a/arch/arm/mach-at91/gpio.c +++ b/arch/arm/mach-at91/gpio.c @@ -11,6 +11,7 @@ #include <linux/clk.h> #include <linux/errno.h> +#include <linux/device.h> #include <linux/gpio.h> #include <linux/interrupt.h> #include <linux/irq.h> @@ -48,6 +49,7 @@ 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_to_irq(struct gpio_chip *chip, unsigned offset); #define AT91_GPIO_CHIP(name, base_gpio, nr_gpio) \ { \ @@ -59,6 +61,7 @@ static int at91_gpiolib_direction_input(struct gpio_chip *chip, .set = at91_gpiolib_set, \ .dbg_show = at91_gpiolib_dbg_show, \ .base = base_gpio, \ + .to_irq = at91_gpiolib_to_irq, \ .ngpio = nr_gpio, \ }, \ } @@ -640,6 +643,16 @@ static void at91_gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip) } } +static int at91_gpiolib_to_irq(struct gpio_chip *chip, unsigned offset) +{ + struct at91_gpio_chip *at91_gpio = to_at91_gpio_chip(chip); + int virq = irq_find_mapping(at91_gpio->domain, offset); + + dev_dbg(chip->dev, "%s: request IRQ for GPIO %d, return %d\n", + chip->label, offset + chip->base, virq); + return virq; +} + static int __init at91_gpio_setup_clk(int idx) { struct at91_gpio_chip *at91_gpio = &gpio_chip[idx]; |