linux-kernel - [PATCH] at91: use gpiolib calls for USB vbus pin on at91sam9g45

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Date:	Wed, 16 Sep 2009 19:29:29 +0200
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	linux-usb@...r.kernel.org, avictor.za@...il.com
Cc:	linux-kernel@...r.kernel.org, david-b@...bell.net,
	haavard.skinnemoen@...el.com, patrice.vilchez@...el.com,
	linux-arm-kernel@...ts.infradead.org, nicolas.ferre@...el.com
Subject: [PATCH] at91: use gpiolib calls for USB vbus pin on at91sam9g45

Change pin configuration for USB vbus on at91sam9g45: use the generic gpiolib
call instead of the at91 specific one.
Use gpio_request() function with same identifier for OHCI and EHCI hosts as
they are sharing the same pin.

Signed-off-by: Nicolas Ferre <nicolas.ferre@...el.com>
---
This patch is on top of at91sam9g45 USB integration one:
"[PATCH 2/2] at91/USB: at91sam9g45 series USB host integration"
http://lkml.org/lkml/2009/6/9/221

 arch/arm/mach-at91/at91sam9g45_devices.c |   12 ++++++++----
 1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index 5be8cf2..7d939c0 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -118,8 +118,10 @@ void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data)
 
 	/* Enable VBus control for UHP ports */
 	for (i = 0; i < data->ports; i++) {
-		if (data->vbus_pin[i])
-			at91_set_gpio_output(data->vbus_pin[i], 0);
+		if (data->vbus_pin[i]) {
+			gpio_request(data->vbus_pin[i], "usb host vbus");
+			gpio_direction_output(data->vbus_pin[i], 0);
+		}
 	}
 
 	usbh_ohci_data = *data;
@@ -173,8 +175,10 @@ void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data)
 
 	/* Enable VBus control for UHP ports */
 	for (i = 0; i < data->ports; i++) {
-		if (data->vbus_pin[i])
-			at91_set_gpio_output(data->vbus_pin[i], 0);
+		if (data->vbus_pin[i]) {
+			gpio_request(data->vbus_pin[i], "usb host vbus");
+			gpio_direction_output(data->vbus_pin[i], 0);
+		}
 	}
 
 	usbh_ehci_data = *data;
-- 
1.5.6.5

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