linux-kernel - [PATCH v17 11/12] dt-bindings: Add documentation for rockchip dw hdmi

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Message-Id: <1417687824-13451-1-git-send-email-andy.yan@rock-chips.com>
Date:	Thu,  4 Dec 2014 18:10:24 +0800
From:	Andy Yan <andy.yan@...k-chips.com>
To:	airlied@...ux.ie, Philipp Zabel <p.zabel@...gutronix.de>,
	heiko@...ech.de, fabio.estevam@...escale.com,
	rmk+kernel@....linux.org.uk
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Shawn Guo <shawn.guo@...aro.org>,
	Josh Boyer <jwboyer@...hat.com>,
	Sean Paul <seanpaul@...omium.org>,
	Inki Dae <inki.dae@...sung.com>,
	Dave Airlie <airlied@...hat.com>,
	Arnd Bergmann <arnd@...db.de>,
	Lucas Stach <l.stach@...gutronix.de>,
	Zubair.Kakakhel@...tec.com, djkurtz@...gle.com, ykk@...k-chips.com,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	devel@...verdev.osuosl.org, devicetree@...r.kernel.org,
	linux-rockchip@...ts.infradead.org, jay.xu@...k-chips.com,
	Pawel Moll <pawel.moll@....com>, mark.yao@...k-chips.com,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	vladimir_zapolskiy@...tor.com, Andy Yan <andy.yan@...k-chips.com>
Subject: [PATCH v17 11/12] dt-bindings: Add documentation for rockchip dw hdmi

Signed-off-by: Andy Yan <andy.yan@...k-chips.com>

---

Changes in v17: None
Changes in v16:
- modify clocks bindings
- descrbie ddc-i2c-bus as optional

Changes in v15: None
Changes in v14: None
Changes in v13: None
Changes in v12: None
Changes in v11: None
Changes in v10: None
Changes in v9: None
Changes in v8:
- Add documentation for rockchip dw hdmi

Changes in v7: None
Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None

 .../devicetree/bindings/video/dw_hdmi-rockchip.txt | 46 ++++++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/video/dw_hdmi-rockchip.txt

diff --git a/Documentation/devicetree/bindings/video/dw_hdmi-rockchip.txt b/Documentation/devicetree/bindings/video/dw_hdmi-rockchip.txt
new file mode 100644
index 0000000..264cb4f
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/dw_hdmi-rockchip.txt
@@ -0,0 +1,46 @@
+Rockchip specific extensions to the Synopsys Designware HDMI
+================================
+
+Required properties:
+- compatible: "rockchip,rk3288-dw-hdmi";
+- reg: Physical base address and length of the controller's registers.
+- clocks: phandle to hdmi iahb and isrf clocks.
+- clock-names: should be "iahb" "isfr"
+- rockchip,grf: this soc should set GRF regs to mux vopl/vopb.
+- interrupts: HDMI interrupt number
+- ports: contain a port node with endpoint definitions as defined in
+  Documentation/devicetree/bindings/media/video-interfaces.txt. For
+  vopb,set the reg = <0> and set the reg = <1> for vopl.
+- reg-io-width: the width of the reg:1,4, the value should be 4 on
+  rk3288 platform
+
+Optional properties
+- ddc-i2c-bus: phandle of an I2C controller used for DDC EDID probing
+- clkocks, clock-names: phandle to the HDMI cec clock, name should be "cec"
+
+Example:
+hdmi: hdmi@...80000 {
+	compatible = "rockchip,rk3288-dw-hdmi";
+	reg = <0xff980000 0x20000>;
+	reg-io-width = <4>;
+	ddc-i2c-bus = <&i2c5>;
+	rockchip,grf = <&grf>;
+	interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&cru  PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_HDCP>;
+	clock-names = "iahb", "isfr";
+	status = "disabled";
+	ports {
+		hdmi_in: port {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			hdmi_in_vopb: endpoint@0 {
+				reg = <0>;
+				remote-endpoint = <&vopb_out_hdmi>;
+			};
+			hdmi_in_vopl: endpoint@1 {
+				reg = <1>;
+				remote-endpoint = <&vopl_out_hdmi>;
+			};
+		};
+	};
+};
-- 
1.9.1


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