ARM: pxa: move PXA_GPIO_TO_IRQ macro

Since PXA_GPIO_TO_IRQ() & MMP_GPIO_TO_IRQ() macro are depended on
arch code, move them from gpio driver to platform driver instead.

Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

arch/arm/mach-mmp/avengers_lite.c

@@ -12,6 +12,7 @@
 
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/gpio-pxa.h>
 #include <linux/platform_device.h>
 
 #include <asm/mach-types.h>
@@ -32,12 +33,18 @@ static unsigned long avengers_lite_pin_config_V16F[] __initdata = {
 	GPIO89_UART2_RXD,
 };
 
+static struct pxa_gpio_platform_data pxa168_gpio_pdata = {
+	.irq_base	= MMP_GPIO_TO_IRQ(0),
+};
+
 static void __init avengers_lite_init(void)
 {
 	mfp_config(ARRAY_AND_SIZE(avengers_lite_pin_config_V16F));
 
 	/* on-chip devices */
 	pxa168_add_uart(2);
+	platform_device_add_data(&pxa168_device_gpio, &pxa168_gpio_pdata,
+				 sizeof(struct pxa_gpio_platform_data));
 	platform_device_register(&pxa168_device_gpio);
 }