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 <shengjiu.wang@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
---
 .../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
+
       cpu:
         description: Holds subnode which indicates cpu dai.
         type: object
-- 
2.34.1

On Fri, Feb 14, 2025 at 03:05:32PM +0800, Shengjiu Wang wrote:
> 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:

Aren't these mutually exclusive? If so, you need proper schema for this.

https://lore.kernel.org/all/20230118163208.GA117919-robh@kernel.org/

Best regards,
Krzysztof