[PATCH v3 4/7] ASoC: dt-bindings: ti,pcm1681: Document the PCM1681 supplies

[Mohammad Rafi Shaik]

From: Shawn Guo <shengchao.guo@xxxxxxxxxxxxxxxx>

The PCM1681 takes a 5V analog supply on VCC1 and VCC2 and a 3.3V
digital supply on VDD. On boards where these rails are switchable, the
codec has to know about them to be able to power the DAC up and down,
which needs a way to describe the connections in Device Tree.

Document the VCC1, VCC2 and VDD supply properties.

Signed-off-by: Shawn Guo <shengchao.guo@xxxxxxxxxxxxxxxx>
Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@xxxxxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/sound/ti,pcm1681.yaml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/ti,pcm1681.yaml b/Documentation/devicetree/bindings/sound/ti,pcm1681.yaml
index 1b3803518..fb09d1c39 100644
--- a/Documentation/devicetree/bindings/sound/ti,pcm1681.yaml
+++ b/Documentation/devicetree/bindings/sound/ti,pcm1681.yaml
@@ -28,6 +28,15 @@ properties:
   clock-names:
     const: sck
 
+  VCC1-supply:
+    description: 5V analog power supply
+
+  VCC2-supply:
+    description: 5V analog power supply
+
+  VDD-supply:
+    description: 3.3V digital power supply
+
   "#sound-dai-cells":
     const: 0
 

-- 
2.34.1