diff options
| author | Steven King <sfking@fdwdc.com> | 2014-05-21 16:00:30 -0700 |
|---|---|---|
| committer | Greg Ungerer <gerg@uclinux.org> | 2014-05-26 13:28:37 +1000 |
| commit | 60fc65fdd1f18c75095a00229078d884f5135fc1 (patch) | |
| tree | d4b33feca5ca65b0f2bd0ab7197daffc4629cdf3 | |
| parent | 151d14f4ac5a02cc059cb05b2a2f27ec5b9d6831 (diff) | |
| download | linux-60fc65fdd1f18c75095a00229078d884f5135fc1.tar.bz2 | |
m68knommu: add to_irq function so we can map gpios to external interrupts.
Singed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
| -rw-r--r-- | arch/m68k/platform/coldfire/gpio.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/m68k/platform/coldfire/gpio.c b/arch/m68k/platform/coldfire/gpio.c index 9cd2b5c70519..ab9ac4110877 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, }; |