From 60fc65fdd1f18c75095a00229078d884f5135fc1 Mon Sep 17 00:00:00 2001 From: Steven King Date: Wed, 21 May 2014 16:00:30 -0700 Subject: m68knommu: add to_irq function so we can map gpios to external interrupts. Singed-off-by: Steven King Signed-off-by: Greg Ungerer --- arch/m68k/platform/coldfire/gpio.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'arch/m68k') diff --git a/arch/m68k/platform/coldfire/gpio.c b/arch/m68k/platform/coldfire/gpio.c index 9cd2b5c..ab9ac41 100644 --- a/arch/m68k/platform/coldfire/gpio.c +++ b/arch/m68k/platform/coldfire/gpio.c @@ -147,6 +147,18 @@ void mcfgpio_free(struct gpio_chip *chip, unsigned offset) __mcfgpio_free(offset); } +int mcfgpio_to_irq(struct gpio_chip *chip, unsigned offset) +{ +#if defined(MCFGPIO_IRQ_MIN) + if ((offset >= MCFGPIO_IRQ_MIN) && (offset < MCFGPIO_IRQ_MAX)) +#else + if (offset < MCFGPIO_IRQ_MAX) +#endif + return MCFGPIO_IRQ_VECBASE + offset; + else + return -EINVAL; +} + struct bus_type mcfgpio_subsys = { .name = "gpio", .dev_name = "gpio", @@ -160,6 +172,7 @@ static struct gpio_chip mcfgpio_chip = { .direction_output = mcfgpio_direction_output, .get = mcfgpio_get_value, .set = mcfgpio_set_value, + .to_irq = mcfgpio_to_irq, .base = 0, .ngpio = MCFGPIO_PIN_MAX, }; -- cgit v1.1