sii902x HDMI bridge bindings Required properties: - compatible: "sil,sii9022" - reg: i2c address of the bridge Optional properties: - interrupts: describe the interrupt line used to inform the host about hotplug events. - reset-gpios: OF device-tree gpio specification for RST_N pin. HDMI audio properties: - #sound-dai-cells: <0> or <1>. <0> if only i2s or spdif pin is wired, <1> if the both are wired. HDMI audio is configured only if this property is found. - sil,i2s-data-lanes: Array of up to 4 integers with values of 0-3 Each integer indicates which i2s pin is connected to which audio fifo. The first integer selects i2s audio pin for the first audio fifo#0 (HDMI channels 1&2), second for fifo#1 (HDMI channels 3&4), and so on. There is 4 fifos and 4 i2s pins (SD0 - SD3). Any i2s pin can be connected to any fifo, but there can be no gaps. E.g. an i2s pin must be mapped to fifo#0 and fifo#1 before mapping a channel to fifo#2. Default value is <0>, describing SD0 pin beiging routed to hdmi audio fifo #0. - clocks: phandle and clock specifier for each clock listed in the clock-names property - clock-names: "mclk" Describes SII902x MCLK input. MCLK can be used to produce HDMI audio CTS values. This property follows Documentation/devicetree/bindings/clock/clock-bindings.txt consumer binding. If HDMI audio is configured the sii902x device becomes an I2S and/or spdif audio codec component (e.g a digital audio sink), that can be used in configuring a full audio devices with simple-card or audio-graph-card binding. See their binding documents on how to describe the way the sii902x device is connected to the rest of the audio system: Documentation/devicetree/bindings/sound/simple-card.txt Documentation/devicetree/bindings/sound/audio-graph-card.txt Note: In case of the audio-graph-card binding the used port index should be 3. Optional subnodes: - video input: this subnode can contain a video input port node to connect the bridge to a display controller output (See this documentation [1]). [1]: Documentation/devicetree/bindings/media/video-interfaces.txt Example: hdmi-bridge@39 { compatible = "sil,sii9022"; reg = <0x39>; reset-gpios = <&pioA 1 0>; #sound-dai-cells = <0>; sil,i2s-data-lanes = < 0 1 2 >; clocks = <&mclk>; clock-names = "mclk"; ports { #address-cells = <1>; #size-cells = <0>; port@0 { reg = <0>; bridge_in: endpoint { remote-endpoint = <&dc_out>; }; }; }; };