The SPDIF receiver/transmitter can be connected to a DAI device via OF
graph port. It is already in use and supported.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
 Documentation/devicetree/bindings/sound/linux,spdif.yaml | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/linux,spdif.yaml b/Documentation/devicetree/bindings/sound/linux,spdif.yaml
index 0f4893e11ec4..aea6230db54c 100644
--- a/Documentation/devicetree/bindings/sound/linux,spdif.yaml
+++ b/Documentation/devicetree/bindings/sound/linux,spdif.yaml
@@ -23,6 +23,9 @@ properties:
 
   sound-name-prefix: true
 
+  port:
+    $ref: /schemas/graph.yaml#/properties/port
+
 required:
   - "#sound-dai-cells"
   - compatible
-- 
2.51.0

On Wed, 10 Sep 2025 18:36:15 -0500, Rob Herring (Arm) wrote:
> The SPDIF receiver/transmitter can be connected to a DAI device via OF
> graph port. It is already in use and supported.
> 
> 

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: dt-bindings: linux,spdif: Add "port" node
      commit: 59ba108806516adeaed51a536d55d4f5e9645881

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark