Hi Geert Thank you for your patch > diff --git a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi > index 408871c2859d144d..8e46acbe3a203759 100644 > --- a/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi > +++ b/arch/arm64/boot/dts/renesas/ulcb-kf.dtsi > @@ -216,19 +216,18 @@ pcm3168a: audio-codec@44 { > ports { > #address-cells = <1>; > #size-cells = <0>; > - mclk-fs = <512>; > port@0 { > reg = <0>; > pcm3168a_endpoint_p: endpoint { > + mclk-fs = <512>; > remote-endpoint = <&rsnd_for_pcm3168a_play>; > - clocks = <&clksndsel>; > }; > }; > port@1 { > reg = <1>; > pcm3168a_endpoint_c: endpoint { > + mclk-fs = <512>; > remote-endpoint = <&rsnd_for_pcm3168a_capture>; > - clocks = <&clksndsel>; > }; > }; > }; I'm not tested, but in my quick check, we can use "mclk-fs" under "ports", and we need "clocks" under "endpoint". So the issue is not dtsi side, but yaml side. I will check and fix it, but it will be next week or later. Thank you for your help !! Best regards --- Kuninori Morimoto