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| author | Alexey Charkov <alchark@flipper.net> | 2026-05-25 12:20:45 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-06-01 17:13:55 +0300 |
| commit | caba9259a22b4da6beeeb48c84292870dbcff978 (patch) | |
| tree | 9f558514ef249713d9d864ebeda363fd519d2486 | |
| parent | e43ffb69e0438cddd72aaa30898b4dc446f664f8 (diff) | |
| download | linux-caba9259a22b4da6beeeb48c84292870dbcff978.tar.xz | |
ASoC: dt-bindings: nau8822: Add supply regulators
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>
| -rw-r--r-- | Documentation/devicetree/bindings/sound/nuvoton,nau8822.yaml | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/nuvoton,nau8822.yaml b/Documentation/devicetree/bindings/sound/nuvoton,nau8822.yaml index cb8182bbc491..cf4c13038241 100644 --- a/Documentation/devicetree/bindings/sound/nuvoton,nau8822.yaml +++ b/Documentation/devicetree/bindings/sound/nuvoton,nau8822.yaml @@ -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>; }; }; |