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>

arch/arm/mach-exynos/mach-nuri.c

@@ -247,13 +247,8 @@ static void nuri_lcd_power_on(struct plat_lcd_data *pd, unsigned int power)
 
 static int nuri_bl_init(struct device *dev)
 {
-	int ret, gpio = EXYNOS4_GPE2(3);
-
-	ret = gpio_request(gpio, "LCD_LDO_EN");
-	if (!ret)
-		gpio_direction_output(gpio, 0);
-
-	return ret;
+	return gpio_request_one(EXYNOS4_GPE2(3), GPIOF_OUT_INIT_LOW,
+				"LCD_LD0_EN");
 }
 
 static int nuri_bl_notify(struct device *dev, int brightness)

arch/arm/mach-exynos/mach-smdkv310.c

@@ -129,9 +129,7 @@ static void lcd_lte480wv_set_power(struct plat_lcd_data *pd,
 		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);

arch/arm/mach-exynos/mach-universal_c210.c

@@ -608,8 +608,7 @@ static void __init universal_tsp_init(void)
 
 	/* TSP_LDO_ON: XMDMADDR_11 */
 	gpio = EXYNOS4_GPE2(3);
-	gpio_request(gpio, "TSP_LDO_ON");
-	gpio_direction_output(gpio, 1);
+	gpio_request_one(gpio, GPIOF_OUT_INIT_HIGH, "TSP_LDO_ON");
 	gpio_export(gpio, 0);
 
 	/* TSP_INT: XMDMADDR_7 */
@@ -669,8 +668,7 @@ static void __init universal_touchkey_init(void)
 	i2c_gpio12_devs[0].irq = gpio_to_irq(gpio);
 
 	gpio = EXYNOS4_GPE3(3);			/* XMDMDATA_3 */
-	gpio_request(gpio, "3_TOUCH_EN");
-	gpio_direction_output(gpio, 1);
+	gpio_request_one(gpio, GPIOF_OUT_INIT_HIGH, "3_TOUCH_EN");
 }
 
 static struct s3c2410_platform_i2c universal_i2c0_platdata __initdata = {
@@ -1000,9 +998,7 @@ static void __init universal_map_io(void)
 void s5p_tv_setup(void)
 {
 	/* direct HPD to HDMI chip */
-	gpio_request(EXYNOS4_GPX3(7), "hpd-plug");
-
-	gpio_direction_input(EXYNOS4_GPX3(7));
+	gpio_request_one(EXYNOS4_GPX3(7), GPIOF_IN, "hpd-plug");
 	s3c_gpio_cfgpin(EXYNOS4_GPX3(7), S3C_GPIO_SFN(0x3));
 	s3c_gpio_setpull(EXYNOS4_GPX3(7), S3C_GPIO_PULL_NONE);