Signed-off-by: Andy Yan andy.yan@rock-chips.com
---
Changes in v18: - correct some spelling mistakes in dw_hdmi-rockchip bindings doc
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..668091f --- /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 isfr 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 +- clocks, clock-names: phandle to the HDMI CEC clock, name should be "cec" + +Example: +hdmi: hdmi@ff980000 { + 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>; + }; + }; + }; +};