ASoC: dt-bindings: ak4458: Add power supply property

AVDD-supply is for Analog power supply
DVDD-supply is for Digital power supply

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1597397561-2426-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/sound/ak4458.txt b/Documentation/devicetree/bindings/sound/ak4458.txt
index e582023..8f6c84f 100644 (file)
--- a/Documentation/devicetree/bindings/sound/ak4458.txt
+++ b/Documentation/devicetree/bindings/sound/ak4458.txt
@@ -10,6 +10,8 @@ Required properties:
 Optional properties:
 - reset-gpios: A GPIO specifier for the power down & reset pin
 - mute-gpios: A GPIO specifier for the soft mute pin
+- AVDD-supply: Analog power supply
+- DVDD-supply: Digital power supply
 
 Example: