[PATCH v6 28/40] ASoC: dt-bindings: ep93xx: Document DMA support

[Nikita Shubin via B4 Relay]

From: Nikita Shubin <nikita.shubin at maquefel.me>

Document DMA support in binding document.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>
Reviewed-by: Mark Brown <broonie at kernel.org>
Signed-off-by: Nikita Shubin <nikita.shubin at maquefel.me>
---
 .../devicetree/bindings/sound/cirrus,ep9301-i2s.yaml         | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/cirrus,ep9301-i2s.yaml b/Documentation/devicetree/bindings/sound/cirrus,ep9301-i2s.yaml
index 453d493c941f..36a320ddf534 100644
--- a/Documentation/devicetree/bindings/sound/cirrus,ep9301-i2s.yaml
+++ b/Documentation/devicetree/bindings/sound/cirrus,ep9301-i2s.yaml
@@ -40,6 +40,16 @@ properties:
       - const: sclk
       - const: lrclk
 
+  dmas:
+    items:
+      - description: out DMA channel
+      - description: in DMA channel
+
+  dma-names:
+    items:
+      - const: tx
+      - const: rx
+
 required:
   - compatible
   - '#sound-dai-cells'
@@ -61,6 +71,8 @@ examples:
                  <&syscon 30>,
                  <&syscon 31>;
         clock-names = "mclk", "sclk", "lrclk";
+        dmas = <&dma0 0 1>, <&dma0 0 2>;
+        dma-names = "tx", "rx";
     };
 
 ...

-- 
2.41.0