linux-kernel - [PATCH v6 2/5] Documentation: bindings: add dt documentation for Rockchip usb PHY

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Message-Id: <1418291722-25448-3-git-send-email-lyz@rock-chips.com>
Date:	Thu, 11 Dec 2014 17:55:19 +0800
From:	Yunzhi Li <lyz@...k-chips.com>
To:	heiko@...ech.de, jwerner@...omium.org, dianders@...omium.org
Cc:	olof@...om.net, huangtao@...k-chips.com, zyw@...k-chips.com,
	cf@...k-chips.com, linux-rockchip@...ts.infradead.org,
	Yunzhi Li <lyz@...k-chips.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v6 2/5] Documentation: bindings: add dt documentation for Rockchip usb PHY

This patch adds a binding that describes the Rockchip usb PHYs
found on Rockchip SoCs usb interface.

Signed-off-by: Yunzhi Li <lyz@...k-chips.com>

---

Changes in v6: None
Changes in v5:
- Adjust entry order of example devicetree node in document.

Changes in v4:
- Updata description for phy device tree subnode.

Changes in v3: None

 .../devicetree/bindings/phy/rockchip-usb-phy.txt   | 32 ++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/rockchip-usb-phy.txt

diff --git a/Documentation/devicetree/bindings/phy/rockchip-usb-phy.txt b/Documentation/devicetree/bindings/phy/rockchip-usb-phy.txt
new file mode 100644
index 0000000..e9500d9
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/rockchip-usb-phy.txt
@@ -0,0 +1,32 @@
+ROCKCHIP USB2 PHY
+
+Required properties:
+ - compatible: rockchip,rk3288-usb-phy
+ - rockchip,grf : phandle to the syscon managing the "general
+   register files"
+ - #phy-cells: should be 1
+ - #address-cells: should be 1
+ - #size-cells: should be 0
+
+Sub-nodes:
+Each PHY should be represented as a sub-node.
+
+Sub-nodes
+required properties:
+- reg: the PHY number
+		"0" - PHY connect to OTG controller
+		"1" - PHY connect to HOST0 controller
+		"2" - PHY connect to HOST1 controller
+
+Optional Properties:
+- clocks : phandle + clock specifier for the phy clocks
+
+Example:
+
+usbphy: phy {
+	compatible = "rockchip,rk3288-usb-phy";
+	rockchip,grf = <&grf>;
+	#phy-cells = <1>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+};
-- 
2.0.0


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