Add the audio codec sub-device. This sub-device is used to set required and optional voltage needed according to the hardware. The properties are: - phandle of the required power supply. - Setup of microphone bias voltage. - Setup of the speaker pin pull-down. Signed-off-by: Alexandre Mergnat <amergnat@xxxxxxxxxxxx> --- .../devicetree/bindings/mfd/mediatek,mt6357.yaml | 34 ++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml b/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml index 37423c2e0fdf..30234f13a810 100644 --- a/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml +++ b/Documentation/devicetree/bindings/mfd/mediatek,mt6357.yaml @@ -37,6 +37,34 @@ properties: "#interrupt-cells": const: 2 + audio-codec: + type: object + properties: + vaud28-supply: + description: 2.8 volt supply phandle for the audio codec + + mediatek,hp-pull-down: + description: + Earphone driver positive output stage short to + the audio reference ground. + type: boolean + + mediatek,micbias0-microvolt: + description: Selects MIC Bias 0 output voltage. + enum: [1700000, 1800000, 1900000, 2000000, + 2100000, 2500000, 2600000, 2700000] + default: 1700000 + + mediatek,micbias1-microvolt: + description: Selects MIC Bias 1 output voltage. + enum: [1700000, 1800000, 1900000, 2000000, + 2100000, 2500000, 2600000, 2700000] + default: 1700000 + + required: + - vaud28-supply + unevaluatedProperties: false + regulators: type: object $ref: /schemas/regulator/mediatek,mt6357-regulator.yaml @@ -83,6 +111,12 @@ examples: interrupt-controller; #interrupt-cells = <2>; + audio-codec { + mediatek,micbias0-microvolt = <1700000>; + mediatek,micbias1-microvolt = <1700000>; + vaud28-supply = <&mt6357_vaud28_reg>; + }; + regulators { mt6357_vproc_reg: buck-vproc { regulator-name = "vproc"; -- 2.25.1