ARM: EXYNOS: Use gpio_request_one

By using gpio_request_one it is possible to set the direction
and initial value in one shot. Thus, using gpio_request_one can
make the code simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/mach-exynos/mach-smdkv310.c b/arch/arm/mach-exynos/mach-smdkv310.c
index cec2afa..cbf31bd 100644
--- a/arch/arm/mach-exynos/mach-smdkv310.c
+++ b/arch/arm/mach-exynos/mach-smdkv310.c
@@ -129,9 +129,7 @@
 		gpio_free(EXYNOS4_GPD0(1));
 #endif
 		/* fire nRESET on power up */
-		gpio_request(EXYNOS4_GPX0(6), "GPX0");
-
-		gpio_direction_output(EXYNOS4_GPX0(6), 1);
+		gpio_request_one(EXYNOS4_GPX0(6), GPIOF_OUT_INIT_HIGH, "GPX0");
 		mdelay(100);
 
 		gpio_set_value(EXYNOS4_GPX0(6), 0);