linux-kernel - [PATCH 1/2] Documentation: bindings: add DT documentation for Rockchip USB2PHY

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Date:	Tue, 31 May 2016 14:40:10 +0800
From:	Frank Wang <frank.wang@...k-chips.com>
To:	heiko@...ech.de, dianders@...omium.org, kishon@...com,
	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org
Cc:	linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org,
	linux-usb@...r.kernel.org, kever.yang@...k-chips.com,
	huangtao@...k-chips.com, william.wu@...k-chips.com,
	frank.wang@...k-chips.com.org,
	Frank Wang <frank.wang@...k-chips.com>
Subject: [PATCH 1/2] Documentation: bindings: add DT documentation for Rockchip USB2PHY

Signed-off-by: Frank Wang <frank.wang@...k-chips.com>
---
 .../bindings/phy/phy-rockchip-inno-usb2.txt        |   48 ++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt

diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
new file mode 100644
index 0000000..4e537b2
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
@@ -0,0 +1,48 @@
+ROCKCHIP USB2.0 PHY WITH INNO IP BLOCK
+
+Required properties (phy (parent) node):
+ - compatible: should contain:
+	* "rockchip,rk3366-usb2phy"
+ - #clock-cells: should be 0.
+ - clock-names: specify the 480m output clk name.
+
+Optional properties:
+ - vbus_host-gpio: pull gpio high/low to control the host vbus power.
+
+Required nodes: a sub-node is required for each port the phy provides.
+		The sub-node name is used to identify host or otg port.
+
+Required properties (port (child) node):
+ - #phy-cells: must be 0. See ./phy-bindings.txt for details.
+ - interrupts: irq number for host/otg port.
+ - interrupt-names: interrupt name, in line with irq number.
+
+Example:
+
+grf: syscon@...70000 {
+	compatible = "rockchip,rk3366-grf", "syscon", "simple-mfd";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+...
+
+	u2phy: usb2-phy {
+		compatible = "rockchip,rk3366-usb2phy";
+		#clock-cells = <0>;
+		clock-output-names = "sclk_otgphy0_480m";
+
+		u2phy_otg: otg-port {
+			#phy-cells = <0>;
+			interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "linestate";
+			status = "okay";
+		};
+
+		u2phy_host: host-port {
+			#phy-cells = <0>;
+			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "linestate";
+			status = "okay";
+		};
+	};
+};
-- 
1.7.9.5