x86/gpio: Implement x86 gpio_to_irq convert function

We need this for x86 MID platforms where GPIO interrupts are
used. No special magic is needed so the default 1:1 behaviour
will do nicely.

Signed-off-by: Alek Du <[email protected]>
Signed-off-by: Jacob Pan <[email protected]>
Signed-off-by: Alan Cox <[email protected]>
LKML-Reference: <20110111105439[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>

diff --git a/arch/x86/include/asm/gpio.h b/arch/x86/include/asm/gpio.h
index 49dbfdfa50f9f3a80113c264b7c8fe0439746dc0..91d915a6525995e79c306519b43e1812d154a09b 100644 (file)
--- a/arch/x86/include/asm/gpio.h
+++ b/arch/x86/include/asm/gpio.h
@@ -38,12 +38,9 @@ static inline int gpio_cansleep(unsigned int gpio)
        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)