powerpc/gpio: support gpio_to_irq()
gpiolib returns -ENXIO if struct gpio_chip::to_irq isn't set, so it's
safe to always call.
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/include/asm/gpio.h b/arch/powerpc/include/asm/gpio.h
index ea04632..38762ed 100644
--- a/arch/powerpc/include/asm/gpio.h
+++ b/arch/powerpc/include/asm/gpio.h
@@ -38,12 +38,9 @@
return __gpio_cansleep(gpio);
}
-/*
- * Not implemented, yet.
- */
static inline int gpio_to_irq(unsigned int gpio)
{
- return -ENOSYS;
+ return __gpio_to_irq(gpio);
}
static inline int irq_to_gpio(unsigned int irq)