leds: renesas: use gpio_request_one

Using gpio_request_one can make the code simpler because it can
set the direction and initial value in one shot.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
diff --git a/drivers/leds/leds-renesas-tpu.c b/drivers/leds/leds-renesas-tpu.c
index 771ea06..614776a 100644
--- a/drivers/leds/leds-renesas-tpu.c
+++ b/drivers/leds/leds-renesas-tpu.c
@@ -204,10 +204,10 @@
 	if (p->pin_state == R_TPU_PIN_GPIO_FN)
 		gpio_free(cfg->pin_gpio_fn);
 
-	if (new_state == R_TPU_PIN_GPIO) {
-		gpio_request(cfg->pin_gpio, cfg->name);
-		gpio_direction_output(cfg->pin_gpio, !!brightness);
-	}
+	if (new_state == R_TPU_PIN_GPIO)
+		gpio_request_one(cfg->pin_gpio, GPIOF_DIR_OUT | !!brightness,
+				cfg->name);
+
 	if (new_state == R_TPU_PIN_GPIO_FN)
 		gpio_request(cfg->pin_gpio_fn, cfg->name);