[PATCH v2 2/4] ARM: mx5/babbage: Use gpio_request_one in babbage_usbhub_reset

[Fabio Estevam]

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 at freescale.com>
---
Changes since v1:

- Changed the comment about USB reset and Deassert reset
 arch/arm/mach-mx5/board-mx51_babbage.c |   12 +++++-------
 1 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-mx5/board-mx51_babbage.c b/arch/arm/mach-mx5/board-mx51_babbage.c
index bea4e41..ab50aa9 100644
--- a/arch/arm/mach-mx5/board-mx51_babbage.c
+++ b/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);
 }
 
-- 
1.6.0.4