From: Robert Jarzmik <robert.jarzmik@free.fr>
Date: Fri, 17 Oct 2014 20:43:04 +0000 (+0200)
Subject: usb: gadget: pxa27x_udc device-tree documentation
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=545d64a46c1ed04eb96802a3bf5b6627c4d28dbd;p=openwrt%2Fstaging%2Fblogic.git

usb: gadget: pxa27x_udc device-tree documentation

Add documentation for device-tree binding of arm PXA 27x udc (usb
device) driver.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: devicetree@vger.kernel.org
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---

diff --git a/Documentation/devicetree/bindings/usb/pxa-usb.txt b/Documentation/devicetree/bindings/usb/pxa-usb.txt
index 79729a948d5a..9c331799b87c 100644
--- a/Documentation/devicetree/bindings/usb/pxa-usb.txt
+++ b/Documentation/devicetree/bindings/usb/pxa-usb.txt
@@ -29,3 +29,25 @@ Example:
 		marvell,port-mode = <2>; /* PMM_GLOBAL_MODE */
 	};
 
+UDC
+
+Required properties:
+ - compatible: Should be "marvell,pxa270-udc" for USB controllers
+   used in device mode.
+ - reg: usb device MMIO address space
+ - interrupts: single interrupt generated by the UDC IP
+ - clocks: input clock of the UDC IP (see clock-bindings.txt)
+
+Optional properties:
+ - gpios:
+   - gpio activated to control the USB D+ pullup (see gpio.txt)
+
+Example:
+
+		pxa27x_udc: udc@40600000 {
+			compatible = "marvell,pxa270-udc";
+			reg = <0x40600000 0x10000>;
+			interrupts = <11>;
+			clocks = <&pxa2xx_clks 11>;
+			gpios = <&gpio 22 GPIO_ACTIVE_LOW>;
+		};