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On Mon, Aug 03, 2026 at 03:32:48PM +0200, Krzysztof Kozlowski wrote: > On 03/08/2026 15:28, Tommaso Merciai wrote: > > r9a09g047e57-smarc.dts set clock-frequency for the audio_clkout output, > > but the binding never declared it, so dtbs_check fails: > > > > sound@13c00000 (renesas,r9a09g047-sound): Unevaluated properties > > are not allowed ('clock-frequency' was unexpected) > > Maybe the DTS is wrong, because property was rejected? Did you check > this? You cannot document ABI post-factum if it was rejected. > > > > > > clock-cells is fixed to 0, so only a single audio_clkout applies. > > > > Fixes: a86fd3c20218 ("ASoC: dt-bindings: sound: Add DT binding for RZ/G3E sound") > > Signed-off-by: Tommaso Merciai > > --- > > .../devicetree/bindings/sound/renesas,r9a09g047-sound.yaml | 3 +++ > > 1 file changed, 3 insertions(+) > > > > diff --git a/Documentation/devicetree/bindings/sound/renesas,r9a09g047-sound.yaml b/Documentation/devicetree/bindings/sound/renesas,r9a09g047-sound.yaml > > index d7fa16554698..6e2b2c93b4b7 100644 > > --- a/Documentation/devicetree/bindings/sound/renesas,r9a09g047-sound.yaml > > +++ b/Documentation/devicetree/bindings/sound/renesas,r9a09g047-sound.yaml > > @@ -42,6 +42,9 @@ properties: > > "#clock-cells": > > const: 0 > > > > + clock-frequency: > > + description: for audio_clkout > > Incomplete, missing type/ref, constraints. renesas,r9a09g047-sound is handled by sound/soc/renesas/rcar/core.c [1], and "clock-frequency" is read by rsnd_adg_get_clkout() [2]. The same property is already documented for R-Car in Documentation/devicetree/bindings/sound/renesas,rsnd.yaml [3]. Please correct me if I'm missing somenthing. [1] https://elixir.bootlin.com/linux/v7.2-rc5/source/sound/soc/renesas/rcar/core.c#L109 [2] https://elixir.bootlin.com/linux/v7.2-rc5/source/sound/soc/renesas/rcar/adg.c#L690 [3] https://elixir.bootlin.com/linux/v7.2-rc5/source/Documentation/devicetree/bindings/sound/renesas,rsnd.yaml#L89 Kind regards, Tommaso > > Best regards, > Krzysztof