Turris Omnia has GPIO51 exported on pin header U16, which works in S/PDIF output mode. So define S/PDIF audio output card for this pin. Signed-off-by: Pali Rohár <pali@xxxxxxxxxx> --- arch/arm/boot/dts/armada-385-turris-omnia.dts | 27 +++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/arch/arm/boot/dts/armada-385-turris-omnia.dts b/arch/arm/boot/dts/armada-385-turris-omnia.dts index d1e0db6e5730..fd0960157589 100644 --- a/arch/arm/boot/dts/armada-385-turris-omnia.dts +++ b/arch/arm/boot/dts/armada-385-turris-omnia.dts @@ -105,6 +105,33 @@ */ status = "disabled"; }; + + sound { + compatible = "simple-audio-card"; + simple-audio-card,name = "SPDIF"; + simple-audio-card,format = "i2s"; + + simple-audio-card,cpu { + sound-dai = <&audio_controller 1>; + }; + + simple-audio-card,codec { + sound-dai = <&spdif_out>; + }; + }; + + spdif_out: spdif-out { + #sound-dai-cells = <0>; + compatible = "linux,spdif-dit"; + }; +}; + +&audio_controller { + /* Pin header U16, GPIO51 in SPDIFO mode */ + pinctrl-0 = <&spdif_pins>; + pinctrl-names = "default"; + spdif-mode; + status = "okay"; }; &bm { -- 2.20.1