From: Olivier Moysan <olivier.moysan@foss.st.com>
Date: Tue, 6 Jun 2023 11:56:02 +0000 (+0200)
Subject: ASoC: dt-bindings: stm32: document audio of graph port for i2s
X-Git-Tag: v6.5-rc1~154^2^2~75^2~1
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=401ec2b8878f34b6baf64fba3e29411c246b785c;p=thirdparty%2Flinux.git

ASoC: dt-bindings: stm32: document audio of graph port for i2s

When linking the STM32 I2S to another DAI component, according
to audio graph cards bindings, an OF graph port property is expected
in the node. Document the port property.

Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230606115605.1633595-2-olivier.moysan@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/Documentation/devicetree/bindings/sound/st,stm32-i2s.yaml b/Documentation/devicetree/bindings/sound/st,stm32-i2s.yaml
index a040d4d314120..b9111d375b93f 100644
--- a/Documentation/devicetree/bindings/sound/st,stm32-i2s.yaml
+++ b/Documentation/devicetree/bindings/sound/st,stm32-i2s.yaml
@@ -61,6 +61,10 @@ properties:
     description: Configure the I2S device as MCLK clock provider.
     const: 0
 
+  port:
+    $ref: audio-graph-port.yaml#
+    unevaluatedProperties: false
+
 required:
   - compatible
   - "#sound-dai-cells"
@@ -89,6 +93,13 @@ examples:
         dma-names = "rx", "tx";
         pinctrl-names = "default";
         pinctrl-0 = <&i2s2_pins_a>;
+
+        /* assume audio-graph */
+        port {
+            codec_endpoint: endpoint {
+                remote-endpoint = <&codec_endpoint>;
+            };
+        };
     };
 
 ...