MIPS: lantiq: make use of __gpio_to_irq

The gpio_chip struct allows us to set a .to_irq callback. Once this is set
we can rely on the generic __gpio_to_irq() function to map gpio->irq allowing
more than one gpio_chip to register an interrupt

Signed-off-by: John Crispin <blogic@openwrt.org>

diff --git a/arch/mips/include/asm/mach-lantiq/gpio.h b/arch/mips/include/asm/mach-lantiq/gpio.h
index f79505b..9ba1cae 100644 (file)
--- a/arch/mips/include/asm/mach-lantiq/gpio.h
+++ b/arch/mips/include/asm/mach-lantiq/gpio.h
@@ -1,10 +1,7 @@
 #ifndef __ASM_MIPS_MACH_LANTIQ_GPIO_H
 #define __ASM_MIPS_MACH_LANTIQ_GPIO_H
 
-static inline int gpio_to_irq(unsigned int gpio)
-{
-       return -1;
-}
+#define gpio_to_irq __gpio_to_irq
 
 #define gpio_get_value __gpio_get_value
 #define gpio_set_value __gpio_set_value