[PATCH v1 2/5] ASoC: dt-bindings: ti,pcm1681: Document the optional SCK clock

[Mohammad Rafi Shaik]

The PCM1681 can use an external system clock supplied on the SCK input
pin. Platforms that provide this clock need a way to describe the clock
connection in Device Tree.

Document the optional 'clocks' and 'clock-names' properties and define
the clock name as "sck" to represent the external system clock source.

This allows boards using an externally supplied SCK clock to accurately
describe the hardware configuration.

Signed-off-by: Mohammad Rafi Shaik <mohammad.rafi.shaik@xxxxxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/sound/ti,pcm1681.yaml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/ti,pcm1681.yaml b/Documentation/devicetree/bindings/sound/ti,pcm1681.yaml
index 1f0e6787a746..1b38035189a0 100644
--- a/Documentation/devicetree/bindings/sound/ti,pcm1681.yaml
+++ b/Documentation/devicetree/bindings/sound/ti,pcm1681.yaml
@@ -21,6 +21,13 @@ properties:
   reg:
     maxItems: 1
 
+  clocks:
+    maxItems: 1
+    description: System clock (SCK)
+
+  clock-names:
+    const: sck
+
   "#sound-dai-cells":
     const: 0
 

-- 
2.34.1