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ASoC: dt-bindings: nau8822: Add supply regulators

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NAU8822 has 4 power supply pins: VDDA, VDDB, VDDC and VDDSPK, which need
to be online and stable before communication with the device is attempted.

List them (as optional) so that device tree users can ensure correct power
sequencing.

Signed-off-by: Alexey Charkov <alchark@flipper.net>
Link: https://patch.msgid.link/20260525-nau8822-reg-v2-1-7d37ae393e46@flipper.net
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Alexey Charkov 2026-05-25 13:20:45 +04:00 committed by Mark Brown
parent e43ffb69e0
commit caba9259a2
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1 changed files with 18 additions and 0 deletions
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18
Documentation/devicetree/bindings/sound/nuvoton,nau8822.yaml
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@ -30,6 +30,20 @@ properties:
clock-names:
const: mclk
vdda-supply:
description: Analog power supply
vddb-supply:
description: Digital buffer (input/output) supply
vddc-supply:
description: Digital core supply
vddspk-supply:
description:
Speaker supply (power supply pin for RSPKOUT, LSPKOUT, AUXOUT2 and
AUXTOUT1 output drivers)
nuvoton,spk-btl:
description:
If set, configure the two loudspeaker outputs as a Bridge Tied Load output
@ -54,5 +68,9 @@ examples:
codec@1a {
compatible = "nuvoton,nau8822";
reg = <0x1a>;
vdda-supply = <&vcca_3v3_s0>;
vddb-supply = <&vcca_3v3_s0>;
vddc-supply = <&vcca_3v3_s0>;
vddspk-supply = <&vcca_3v3_s0>;
};
};