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author | Andy Yan <andy.yan@rock-chips.com> | 2014-12-05 06:27:14 (GMT) |
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committer | Philipp Zabel <p.zabel@pengutronix.de> | 2015-01-07 17:31:57 (GMT) |
commit | cd152393967e250927bdc8013b235e66f9df5c68 (patch) | |
tree | 7ea3baa7fbc426369baf31abcc79a39d60d8efc1 | |
parent | b21f4b658df885068c65852ef3d9d2f4f2821b03 (diff) | |
download | linux-cd152393967e250927bdc8013b235e66f9df5c68.tar.xz |
dt-bindings: add document for dw_hdmi
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
-rw-r--r-- | Documentation/devicetree/bindings/drm/bridge/dw_hdmi.txt | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/drm/bridge/dw_hdmi.txt b/Documentation/devicetree/bindings/drm/bridge/dw_hdmi.txt new file mode 100644 index 0000000..a905c14 --- /dev/null +++ b/Documentation/devicetree/bindings/drm/bridge/dw_hdmi.txt @@ -0,0 +1,50 @@ +DesignWare HDMI bridge bindings + +Required properties: +- compatible: platform specific such as: + * "snps,dw-hdmi-tx" + * "fsl,imx6q-hdmi" + * "fsl,imx6dl-hdmi" + * "rockchip,rk3288-dw-hdmi" +- reg: Physical base address and length of the controller's registers. +- interrupts: The HDMI interrupt number +- clocks, clock-names : must have the phandles to the HDMI iahb and isfr clocks, + as described in Documentation/devicetree/bindings/clock/clock-bindings.txt, + the clocks are soc specific, the clock-names should be "iahb", "isfr" +-port@[X]: SoC specific port nodes with endpoint definitions as defined + in Documentation/devicetree/bindings/media/video-interfaces.txt, + please refer to the SoC specific binding document: + * Documentation/devicetree/bindings/drm/imx/hdmi.txt + * Documentation/devicetree/bindings/video/dw_hdmi-rockchip.txt + +Optional properties +- reg-io-width: the width of the reg:1,4, default set to 1 if not present +- 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@0120000 { + compatible = "fsl,imx6q-hdmi"; + reg = <0x00120000 0x9000>; + interrupts = <0 115 0x04>; + gpr = <&gpr>; + clocks = <&clks 123>, <&clks 124>; + clock-names = "iahb", "isfr"; + ddc-i2c-bus = <&i2c2>; + + port@0 { + reg = <0>; + + hdmi_mux_0: endpoint { + remote-endpoint = <&ipu1_di0_hdmi>; + }; + }; + + port@1 { + reg = <1>; + + hdmi_mux_1: endpoint { + remote-endpoint = <&ipu1_di1_hdmi>; + }; + }; + }; |