[ARM] KS8695: Add GPIO to IRQ mapping function

Use the GPIOlib .to_irq call to map KS8695 GPIOs
to the relevant IRQ line.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>

arch/arm/mach-ks8695/gpio.c

@@ -197,15 +197,13 @@ static int ks8695_gpio_get_value(struct gpio_chip *gc, unsigned int pin)
 /*
  * Map GPIO line to IRQ number.
  */
-int gpio_to_irq(unsigned int pin)
+static int ks8695_gpio_to_irq(struct gpio_chip *gc, unsigned int pin)
 {
 	if (pin > KS8695_GPIO_3)	/* only GPIO 0..3 can generate IRQ */
 		return -EINVAL;
 
 	return gpio_irq[pin];
 }
-EXPORT_SYMBOL(gpio_to_irq);
-
 
 /*
  * Map IRQ number to GPIO line.
@@ -227,6 +225,7 @@ static struct gpio_chip ks8695_gpio_chip = {
 	.direction_output	= ks8695_gpio_direction_output,
 	.get			= ks8695_gpio_get_value,
 	.set			= ks8695_gpio_set_value,
+	.to_irq			= ks8695_gpio_to_irq,
 	.base			= 0,
 	.ngpio			= 16,
 	.can_sleep		= 0,

arch/arm/mach-ks8695/include/mach/gpio.h

@@ -35,11 +35,6 @@
  */
 extern int ks8695_gpio_interrupt(unsigned int pin, unsigned int type);
 
-/*
- * Map GPIO line to IRQ number.
- */
-extern int gpio_to_irq(unsigned int pin);
-
 /*
  * Map IRQ number to GPIO line.
  */
@@ -54,6 +49,7 @@ extern int irq_to_gpio(unsigned int irq);
  */
 #define gpio_get_value __gpio_get_value
 #define gpio_set_value __gpio_set_value
+#define gpio_to_irq __gpio_to_irq
 
 /* Register the GPIOs */
 extern void ks8695_register_gpios(void);