x86/gpio: Implement x86 gpio_to_irq convert function

alekdu · Ingo Molnar · commit 718c45bd1aa8 · 2011-01-11T12:46:15.000+01:00
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 &lt;alek.du@intel.com&gt;
Signed-off-by: Jacob Pan &lt;jacob.jun.pan@intel.com&gt;
Signed-off-by: Alan Cox &lt;alan@linux.intel.com&gt;
LKML-Reference: &lt;20110111105439.24448.69863.stgit@bob.linux.org.uk&gt;
Signed-off-by: Ingo Molnar &lt;mingo@elte.hu&gt;
diff --git 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)

Original file line number	Diff line number	Diff line change
`@@ -38,12 +38,9 @@ static inline int gpio_cansleep(unsigned int gpio)`
`38`	`38`	`return __gpio_cansleep(gpio);`
`39`	`39`	`}`
`40`	`40`
`41`		`-/*`
`42`		`- * Not implemented, yet.`
`43`		`- */`
`44`	`41`	`static inline int gpio_to_irq(unsigned int gpio)`
`45`	`42`	`{`
`46`		`- return -ENOSYS;`
	`43`	`+ return __gpio_to_irq(gpio);`
`47`	`44`	`}`
`48`	`45`
`49`	`46`	`static inline int irq_to_gpio(unsigned int irq)`