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Diffstat (limited to 'Documentation/devicetree/bindings/display/bridge/nxp,tda998x.yaml')
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diff --git a/Documentation/devicetree/bindings/display/bridge/nxp,tda998x.yaml b/Documentation/devicetree/bindings/display/bridge/nxp,tda998x.yaml new file mode 100644 index 000000000000..c4bf54397473 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/nxp,tda998x.yaml @@ -0,0 +1,109 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/nxp,tda998x.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP TDA998x HDMI transmitter + +maintainers: + - Russell King <linux@armlinux.org.uk> + +properties: + compatible: + const: nxp,tda998x + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + video-ports: + default: 0x230145 + maximum: 0xffffff + description: + 24 bits value which defines how the video controller output is wired to + the TDA998x input. + + audio-ports: + description: + Array of 8-bit values, 2 values per DAI (Documentation/sound/soc/dai.rst). + The implementation allows one or two DAIs. + If two DAIs are defined, they must be of different type. + $ref: /schemas/types.yaml#/definitions/uint32-matrix + items: + minItems: 1 + items: + - description: | + The first value defines the DAI type: TDA998x_SPDIF or TDA998x_I2S + (see include/dt-bindings/display/tda998x.h). + - description: + The second value defines the tda998x AP_ENA reg content when the + DAI in question is used. + + '#sound-dai-cells': + enum: [ 0, 1 ] + + nxp,calib-gpios: + maxItems: 1 + description: + Calibration GPIO, which must correspond with the gpio used for the + TDA998x interrupt pin. + + port: + $ref: /schemas/graph.yaml#/properties/port + description: Parallel input port + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + type: object + description: Parallel input port + + port@1: + type: object + description: HDMI output port + +required: + - compatible + - reg + +oneOf: + - required: + - port + - required: + - ports + +additionalProperties: false + +examples: + - | + #include <dt-bindings/display/tda998x.h> + #include <dt-bindings/interrupt-controller/irq.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + tda998x: hdmi-encoder@70 { + compatible = "nxp,tda998x"; + reg = <0x70>; + interrupt-parent = <&gpio0>; + interrupts = <27 IRQ_TYPE_EDGE_FALLING>; + video-ports = <0x230145>; + + #sound-dai-cells = <1>; + /* DAI-format / AP_ENA reg value */ + audio-ports = <TDA998x_SPDIF 0x04>, + <TDA998x_I2S 0x03>; + + port { + tda998x_in: endpoint { + remote-endpoint = <&lcdc_0>; + }; + }; + }; + }; |