[PATCH 2/3] ASoC: dt-bindings: wcd938x: Add mic bias supply property

[Srinivasa Rao Mandadapu]

Add vdd mic bias supply, which is required to provide bias
for wcd938x codec.

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@xxxxxxxxxxx>
Co-developed-by: Venkata Prasad Potturu <quic_potturu@xxxxxxxxxxx>
Signed-off-by: Venkata Prasad Potturu <quic_potturu@xxxxxxxxxxx>
---
 Documentation/devicetree/bindings/sound/qcom,wcd938x.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd938x.yaml b/Documentation/devicetree/bindings/sound/qcom,wcd938x.yaml
index 7bf1a5f..5154719 100644
--- a/Documentation/devicetree/bindings/sound/qcom,wcd938x.yaml
+++ b/Documentation/devicetree/bindings/sound/qcom,wcd938x.yaml
@@ -36,6 +36,9 @@ properties:
   vdd-io-supply:
     description: A reference to the 1.8V I/O supply
 
+  vdd-mic-bias-supply:
+    description: A reference to the 3.8V mic bias supply
+
   qcom,tx-device:
     $ref: /schemas/types.yaml#/definitions/phandle-array
     description: A reference to Soundwire tx device phandle
-- 
2.7.4