Document the bindings used for the Cadence MHDP DPI/DP bridge in yaml format. Signed-off-by: Yuti Amonkar <yamonkar@xxxxxxxxxxx> Reviewed-by: Rob Herring <robh@xxxxxxxxxx> --- .../bindings/display/bridge/cdns,mhdp.yaml | 125 ++++++++++++++++++ 1 file changed, 125 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/cdns,mhdp.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/cdns,mhdp.yaml b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp.yaml new file mode 100644 index 000000000000..e7f84ed1d2da --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/cdns,mhdp.yaml @@ -0,0 +1,125 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/display/bridge/cdns,mhdp.yaml#"; +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; + +title: Cadence MHDP bridge + +maintainers: + - Swapnil Jakhade <sjakhade@xxxxxxxxxxx> + - Yuti Amonkar <yamonkar@xxxxxxxxxxx> + +properties: + compatible: + enum: + - cdns,mhdp8546 + - ti,j721e-mhdp8546 + + reg: + minItems: 1 + maxItems: 2 + items: + - description: + Register block of mhdptx apb registers upto PHY mapped area(AUX_CONFIG_P). + The AUX and PMA registers are mapped to associated phy driver. + - description: + Register block for DSS_EDP0_INTG_CFG_VP registers in case of TI J7 SoCs. + + reg-names: + minItems: 1 + maxItems: 2 + items: + - const: mhdptx + - const: j721e-intg + + clocks: + maxItems: 1 + description: + DP bridge clock, it's used by the IP to know how to translate a number of + clock cycles into a time (which is used to comply with DP standard timings + and delays). + + phys: + description: Phandle to the DisplyPort phy. + + ports: + type: object + description: + Ports as described in Documentation/devicetree/bindings/graph.txt + + properties: + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + port@0: + type: object + description: + input port representing the DP bridge input + + port@1: + type: object + description: + output port representing the DP bridge output. + + required: + - port@0 + - port@1 + - '#address-cells' + - '#size-cells' + +allOf: + - if: + properties: + compatible: + contains: + const: ti,j721e-mhdp8546 + then: + properties: + reg: + minItems: 2 + reg-names: + minItems: 2 + +required: + - compatible + - clocks + - reg + - reg-names + - phys + - ports + +additionalProperties: false + +examples: + - | + mhdp: dp-bridge@f0fb000000 { + compatible = "cdns,mhdp8546"; + reg = <0xf0 0xfb000000 0x0 0x1000000>; + reg-names = "mhdptx"; + clocks = <&mhdp_clock>; + phys = <&dp_phy>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dp_bridge_input: endpoint { + remote-endpoint = <&xxx_dpi_output>; + }; + }; + + port@1 { + reg = <1>; + dp_bridge_output: endpoint { + remote-endpoint = <&xxx_dp_connector_input>; + }; + }; + }; + }; +... -- 2.20.1
