[PATCH 2/4] dt-bindings: mfd: rk809: Add audio codec properties

[Jonas Karlman <jonas@kwiboo.se>]

Similar to RK817 the RK809 also integrates a complete audio system.

Add audio codec properties to binding to reflect this.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
 .../bindings/mfd/rockchip,rk809.yaml          | 34 ++++++++++++++++++-
 1 file changed, 33 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml b/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml
index c951056b8b4d..b78e1b090105 100644
--- a/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml
+++ b/Documentation/devicetree/bindings/mfd/rockchip,rk809.yaml
@@ -12,7 +12,7 @@ maintainers:
 
 description: |
   Rockchip RK809 series PMIC. This device consists of an i2c controlled MFD
-  that includes regulators, an RTC, and power button.
+  that includes regulators, an RTC, a power button and an audio codec.
 
 properties:
   compatible:
@@ -93,6 +93,34 @@ properties:
         unevaluatedProperties: false
     unevaluatedProperties: false
 
+  clocks:
+    description:
+      The input clock for the audio codec.
+
+  clock-names:
+    description:
+      The clock name for the codec clock.
+    items:
+      - const: mclk
+
+  '#sound-dai-cells':
+    description:
+      Needed for the interpretation of sound dais.
+    const: 0
+
+  codec:
+    description: |
+      The child node for the codec to hold additional properties. If no
+      additional properties are required for the codec, this node can be
+      omitted.
+    type: object
+    additionalProperties: false
+    properties:
+      rockchip,mic-in-differential:
+        type: boolean
+        description:
+          Describes if the microphone uses differential mode.
+
 allOf:
   - if:
       properties:
@@ -284,5 +312,9 @@ examples:
                     };
                 };
             };
+
+            rk809_codec: codec {
+                rockchip,mic-in-differential;
+            };
         };
     };
-- 
2.43.2