From: Alex Bee <knaerzche@xxxxxxxxx> [ Upstream commit 697dd494cb1cf56acfb764214a1e4788e4d1a983 ] Add a SPDIF audio-graph-card to ROCK Pi 4 device tree. It's not enabled by default since all dma channels are used by the (already) enabled i2s0/1/2 and the pin is muxed with GPIO4_C5 which might be in use already. If enabled SPDIF_TX will be available at pin #15. Signed-off-by: Alex Bee <knaerzche@xxxxxxxxx> Link: https://lore.kernel.org/r/20210618181256.27992-6-knaerzche@xxxxxxxxx Signed-off-by: Heiko Stuebner <heiko@xxxxxxxxx> Stable-dep-of: cee572756aa2 ("arm64: dts: rockchip: Disable HS400 for eMMC on ROCK Pi 4") Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- .../boot/dts/rockchip/rk3399-rock-pi-4.dtsi | 26 +++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi index f80cdb021f7fc..fcd8eeabf53b6 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi @@ -37,6 +37,23 @@ dais = <&i2s0_p0>; }; + sound-dit { + compatible = "audio-graph-card"; + label = "SPDIF"; + dais = <&spdif_p0>; + }; + + spdif-dit { + compatible = "linux,spdif-dit"; + #sound-dai-cells = <0>; + + port { + dit_p0_0: endpoint { + remote-endpoint = <&spdif_p0_0>; + }; + }; + }; + vcc12v_dcin: dc-12v { compatible = "regulator-fixed"; regulator-name = "vcc12v_dcin"; @@ -625,6 +642,15 @@ status = "okay"; }; +&spdif { + + spdif_p0: port { + spdif_p0_0: endpoint { + remote-endpoint = <&dit_p0_0>; + }; + }; +}; + &tcphy0 { status = "okay"; }; -- 2.40.1
