linux-kernel - [PATCH v5 1/3] usb: Add device tree bindings for dwc3-exynos

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Message-id: <1363334534-21901-2-git-send-email-gautam.vivek@samsung.com>
Date:	Fri, 15 Mar 2013 13:32:12 +0530
From:	Vivek Gautam <gautam.vivek@...sung.com>
To:	linux-samsung-soc@...r.kernel.org, linux-usb@...r.kernel.org,
	devicetree-discuss@...ts.ozlabs.org
Cc:	linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
	balbi@...com, rob.herring@...xeda.com, kgene.kim@...sung.com,
	thomas.abraham@...aro.org, grant.likely@...retlab.ca,
	dianders@...omium.org, jg1.han@...sung.com, p.paneri@...sung.com
Subject: [PATCH v5 1/3] usb: Add device tree bindings for dwc3-exynos

Document device tree binding information as required by the
Samsung' USB 3.0 controller.

Signed-off-by: Vivek Gautam <gautam.vivek@...sung.com>
---
 .../devicetree/bindings/usb/exynos-usb.txt         |   34 ++++++++++++++++++++
 1 files changed, 34 insertions(+), 0 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/exynos-usb.txt b/Documentation/devicetree/bindings/usb/exynos-usb.txt
index b3abde7..d967ba1 100644
--- a/Documentation/devicetree/bindings/usb/exynos-usb.txt
+++ b/Documentation/devicetree/bindings/usb/exynos-usb.txt
@@ -48,3 +48,37 @@ Example:
 		clocks = <&clock 285>;
 		clock-names = "usbhost";
 	};
+
+DWC3
+Required properties:
+ - compatible: should be "samsung,exynos5250-dwusb3" for USB 3.0 DWC3
+	       controller.
+ - #address-cells, #size-cells : should be '1' if the device has sub-nodes
+				 with 'reg' property.
+ - ranges: allows valid 1:1 translation between child's address space and
+	   parent's address space
+ - clocks: Clock IDs array as required by the controller.
+ - clock-names: names of clocks correseponding to IDs in the clock property
+
+Sub-nodes:
+The dwc3 core should be added as subnode to Exynos dwc3 glue.
+- dwc3 :
+   The binding details of dwc3 can be found in:
+   Documentation/devicetree/bindings/usb/dwc3.txt
+
+Example:
+	usb@...00000 {
+		compatible = "samsung,exynos5250-dwusb3";
+		clocks = <&clock 286>;
+		clock-names = "usbdrd30";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		dwc3 {
+			compatible = "synopsys,dwc3";
+			reg = <0x12000000 0x10000>;
+			interrupts = <0 72 0>;
+			usb-phy = <&usb2_phy &usb3_phy>;
+		};
+	};
-- 
1.7.6.5

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