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>

arch/arm/mach-omap2/board-am3517crane.c

@@ -89,19 +89,13 @@ static void __init am3517_crane_init(void)
 		return;
 	}
 
-	ret = gpio_request(GPIO_USB_POWER, "usb_ehci_enable");
+	ret = gpio_request_one(GPIO_USB_POWER, GPIOF_OUT_INIT_HIGH,
+			       "usb_ehci_enable");
 	if (ret < 0) {
 		pr_err("Can not request GPIO %d\n", GPIO_USB_POWER);
 		return;
 	}
 
-	ret = gpio_direction_output(GPIO_USB_POWER, 1);
-	if (ret < 0) {
-		gpio_free(GPIO_USB_POWER);
-		pr_err("Unable to initialize EHCI power\n");
-		return;
-	}
-
 	usbhs_init(&usbhs_bdata);
 }