arm: omap2plus: GPIO cleanup

use gpio_request_<one|array>() instead of multiple gpiolib calls,
remove unneeded variables, etc.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c
index 489294a..118c6f5 100644
--- a/arch/arm/mach-omap2/board-zoom-peripherals.c
+++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
@@ -277,13 +277,11 @@
 	zoom_vsim_supply.dev = mmc[0].dev;
 	zoom_vmmc2_supply.dev = mmc[1].dev;
 
-	ret = gpio_request(LCD_PANEL_ENABLE_GPIO, "lcd enable");
-	if (ret) {
+	ret = gpio_request_one(LCD_PANEL_ENABLE_GPIO, GPIOF_OUT_INIT_LOW,
+			       "lcd enable");
+	if (ret)
 		pr_err("Failed to get LCD_PANEL_ENABLE_GPIO (gpio%d).\n",
 				LCD_PANEL_ENABLE_GPIO);
-		return ret;
-	}
-	gpio_direction_output(LCD_PANEL_ENABLE_GPIO, 0);
 
 	return ret;
 }