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Commit 60fc65fd authored by Steven King's avatar Steven King Committed by Greg Ungerer
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m68knommu: add to_irq function so we can map gpios to external interrupts. 



Singed-off-by: default avatarSteven King <sfking@fdwdc.com>
Signed-off-by: default avatarGreg Ungerer <gerg@uclinux.org>
parent 151d14f4

arch/m68k/platform/coldfire/gpio.c

+13 −0
Original line number Diff line number Diff line
@@ -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,

};