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>
---
.../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 80925a58e470..b5b8a79116fd 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
@@ -42,6 +42,23 @@ sound {
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";
@@ -632,6 +649,15 @@ &sdhci {
status = "okay";
};
+&spdif {
+
+ spdif_p0: port {
+ spdif_p0_0: endpoint {
+ remote-endpoint = <&dit_p0_0>;
+ };
+ };
+};
+
&tcphy0 {
status = "okay";
};
--
2.27.0
