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Signed-off-by: Sandor Yu --- .../bindings/phy/cdns,hdptx-dp-phy.yaml | 68 +++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/cdns,hdptx-dp-phy.yaml diff --git a/Documentation/devicetree/bindings/phy/cdns,hdptx-dp-phy.yaml b/Documentation/devicetree/bindings/phy/cdns,hdptx-dp-phy.yaml new file mode 100644 index 000000000000..b997c15ff0bb --- /dev/null +++ b/Documentation/devicetree/bindings/phy/cdns,hdptx-dp-phy.yaml @@ -0,0 +1,68 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/cdns,hdptx-dp-phy.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Cadence HDP-TX(HDMI/DisplayPort) PHY for DisplayPort protocol + +maintainers: + - Sandor Yu + +properties: + compatible: + enum: + - cdns,hdptx-dp-phy + + reg: + maxItems: 1 + + clocks: + items: + - description: PHY reference clock. + - description: APB clock. + + clock-names: + items: + - const: refclk + - const: apbclk + + "#phy-cells": + const: 0 + + cdns,num-lanes: + description: + Number of lanes. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [1, 2, 3, 4] + default: 4 + + cdns,max-bit-rate: + description: + Maximum DisplayPort link bit rate to use, in Mbps + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [2160, 2430, 2700, 3240, 4320, 5400] + default: 5400 + +required: + - compatible + - reg + - clocks + - clock-names + - "#phy-cells" + +additionalProperties: false + +examples: + - | + #include + #include + dp_phy: phy@32c00000 { + compatible = "cdns,hdptx-dp-phy"; + reg = <0x32c00000 0x100000>; + #phy-cells = <0>; + clocks = <&hdmi_phy_27m>, <&clk IMX8MQ_CLK_DISP_APB_ROOT>; + clock-names = "refclk", "apbclk"; + cdns,num-lanes = <4>; + cdns,max-bit-rate = <5400>; + };