ARM: mx5/babbage: Use gpio_request_one in babbage_usbhub_reset

Current code inside babbage_usbhub_reset uses gpio_direction_output with initial value of the GPIO and also sets
the GPIO value via gpio_set_value to the same level right after. This is not needed.

By using gpio_request_one it is possible to set the direction and initial value in one shot.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
LAKML-Reference: 1300377359-23212-2-git-send-email-fabio.estevam@freescale.com
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

arch/arm/mach-mx5/board-mx51_babbage.c

@@ -208,18 +208,16 @@ static inline void babbage_usbhub_reset(void)
 {
 	int ret;
 
-	/* Bring USB hub out of reset */
-	ret = gpio_request(BABBAGE_USB_HUB_RESET, "GPIO1_7");
+	/* Reset USB hub */
+	ret = gpio_request_one(BABBAGE_USB_HUB_RESET,
+					GPIOF_OUT_INIT_LOW, "GPIO1_7");
 	if (ret) {
 		printk(KERN_ERR"failed to get GPIO_USB_HUB_RESET: %d\n", ret);
 		return;
 	}
-	gpio_direction_output(BABBAGE_USB_HUB_RESET, 0);
 
-	/* USB HUB RESET - De-assert USB HUB RESET_N */
-	msleep(1);
-	gpio_set_value(BABBAGE_USB_HUB_RESET, 0);
-	msleep(1);
+	msleep(2);
+	/* Deassert reset */
 	gpio_set_value(BABBAGE_USB_HUB_RESET, 1);
 }