--- arch/arm/plat-mxc/include/mach/gpio.h

+++ arch/arm/plat-mxc/include/mach/gpio.h

@@ -19,6 +19,7 @@

#ifndef __ASM_ARCH_MXC_GPIO_H__

#define __ASM_ARCH_MXC_GPIO_H__

+#include <linux/spinlock.h>

#include <mach/hardware.h>

#include <asm-generic/gpio.h>

@@ -36,6 +37,7 @@ struct mxc_gpio_port {

int virtual_irq_start;

struct gpio_chip chip;

u32 both_edges;

+ spinlock_t lock;

};

int mxc_gpio_init(struct mxc_gpio_port*, int);