On Tue, Feb 11, 2025 at 11:32 PM Frank Li [off-list ref] wrote:

On Tue, Feb 11, 2025 at 11:57:36AM +0800, Shengjiu Wang wrote:

quoted

Refer to audio graph card, add playback-only and capture-only property
for imx-audio-card.yaml for the case that only playback or capture
is supported.

Signed-off-by: Shengjiu Wang <redacted>
---
 .../devicetree/bindings/sound/imx-audio-card.yaml         | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/imx-audio-card.yaml b/Documentation/devicetree/bindings/sound/imx-audio-card.yaml
index f7ad5ea2491e..86571fa930f6 100644
--- a/Documentation/devicetree/bindings/sound/imx-audio-card.yaml
+++ b/Documentation/devicetree/bindings/sound/imx-audio-card.yaml

@@ -46,6 +46,14 @@ patternProperties:
         description: see tdm-slot.txt.
         $ref: /schemas/types.yaml#/definitions/uint32

+      playback-only:
+        description: link is used only for playback
+        $ref: /schemas/types.yaml#/definitions/flag
+
+      capture-only:
+        description: link is used only for capture
+        $ref: /schemas/types.yaml#/definitions/flag
+

why not ref to audio-graph-port.yaml?

audio-graph-port are based on 'port'. which is not used
in imx-card.  imx-card can't directly refer to audio-graph-port.yaml.

Best regards
Shengjiu Wang

Frank

quoted

       cpu:
         description: Holds subnode which indicates cpu dai.
         type: object
--
2.34.1