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[RESEND,DT,2/2] usb: gadget: pxa27x_udc device-tree documentation

Message ID 1402521141-26235-2-git-send-email-robert.jarzmik@free.fr
State Superseded, archived
Headers show

Commit Message

Robert Jarzmik June 11, 2014, 9:12 p.m. UTC 
Add documentation for device-tree binding of arm PXA 27x udc (usb
device) driver.

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 Documentation/devicetree/bindings/usb/pxa-usb.txt | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
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Patch

diff --git a/Documentation/devicetree/bindings/usb/pxa-usb.txt b/Documentation/devicetree/bindings/usb/pxa-usb.txt
index 79729a9..460b91d 100644
--- a/Documentation/devicetree/bindings/usb/pxa-usb.txt
+++ b/Documentation/devicetree/bindings/usb/pxa-usb.txt
@@ -29,3 +29,23 @@  Example:
 		marvell,port-mode = <2>; /* PMM_GLOBAL_MODE */
 	};
 
+UDC
+
+Required properties:
+ - compatible: Should be "mrvl,pxa27x_udc" for USB controllers
+   used in device mode.
+
+Optional properties:
+ - "udc-pullup-gpio" - gpio activated to control the USB D+ pullup.
+ - "udc-pullup-gpio-inverted" - boolean inverting gpio pullup logic.
+
+Example:
+
+		pxa27x_udc: udc@40600000 {
+			compatible = "mrvl,pxa27x_udc";
+			reg = <0x40600000 0x10000>;
+			interrupts = <11>;
+			clocks = <&pxa2xx_clks 11>;
+			clock-names = "pxa27x-udc";
+			udc-pullup-gpio = <22>;
+		};