[PATCH 4/6] dt-bindings: allwinner: add H616 sun4i audio codec binding

[Ryan Walklin <ryan@xxxxxxxxxxxxx>]

The H616 has an audio codec compatible with the sun4i-a10 driver.

The codec is relatively cut down compared to some of the other Allwinner
SoCs and only has a single line-out route (relying on a separate digital
microphone IP block for input). HDMI and SPDIF audio are handled
separately by an audio hub IP block, which is not currently implemented
in mainline kernels. This and the use of SDM requires some additional
flexibility to the DMA and clock bindings.

Add compatible string and routing for the H616 audio codec, and update
the required clock and DMA descriptions.

Signed-off-by: Ryan Walklin <ryan@xxxxxxxxxxxxx>
---
 .../sound/allwinner,sun4i-a10-codec.yaml      | 55 +++++++++++++++----
 1 file changed, 43 insertions(+), 12 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml
index 78273647f7665..5838600dbc730 100644
--- a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml
+++ b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml
@@ -22,6 +22,7 @@ properties:
       - allwinner,sun8i-a23-codec
       - allwinner,sun8i-h3-codec
       - allwinner,sun8i-v3s-codec
+      - allwinner,sun50i-h616-codec
 
   reg:
     maxItems: 1
@@ -30,24 +31,40 @@ properties:
     maxItems: 1
 
   clocks:
-    items:
-      - description: Bus Clock
-      - description: Module Clock
+    oneOf:
+      - items:
+          - description: Bus Clock
+          - description: Module Clock
+      - items:
+          - description: Bus Clock
+          - description: Module Clock
+          - description: Module Clock (4X)
 
   clock-names:
-    items:
-      - const: apb
-      - const: codec
+    oneOf:
+      - items:
+          - const: apb
+          - const: codec
+      - items:
+          - const: apb
+          - const: codec
+          - const: audio-codec-4x
 
   dmas:
-    items:
-      - description: RX DMA Channel
-      - description: TX DMA Channel
+    oneOf:
+      - items:
+          - description: RX DMA Channel
+          - description: TX DMA Channel
+      - items:
+          - description: TX DMA Channel
 
   dma-names:
-    items:
-      - const: rx
-      - const: tx
+    oneOf:
+      - items:
+          - const: rx
+          - const: tx
+      - items:
+          - const: tx
 
   resets:
     maxItems: 1
@@ -229,6 +246,20 @@ allOf:
               - Mic
               - Speaker
 
+  - if:
+      properties:
+        compatible:
+          enum:
+            - allwinner,sun50i-h616-codec
+
+    then:
+      properties:
+        allwinner,audio-routing:
+          items:
+            enum:
+              - LINEOUT
+              - Line Out
+
 unevaluatedProperties: false
 
 examples:
-- 
2.46.1