ARM: pxa: change gpio to platform device

Remove most gpio macros and change gpio driver to platform driver.

Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index 44563a0..aed6cbc 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -12,6 +12,7 @@
  * published by the Free Software Foundation.
  */
 #include <linux/gpio.h>
+#include <linux/gpio-pxa.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -386,7 +387,6 @@
 void __init pxa27x_init_irq(void)
 {
 	pxa_init_irq(34, pxa27x_set_wake);
-	pxa_init_gpio(IRQ_GPIO_2_x, 2, 120, pxa27x_set_wake);
 }
 
 static struct map_desc pxa27x_io_desc[] __initdata = {
@@ -422,6 +422,7 @@
 }
 
 static struct platform_device *devices[] __initdata = {
+	&pxa_device_gpio,
 	&pxa27x_device_udc,
 	&pxa_device_pmu,
 	&pxa_device_i2s,