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Subject[PATCH] arm64: dts: rockchip: add SPDIF node for rk3399-rockpro64
Date
This patch adds 'disabled' SPDIF sound node and related settings
for rk3399-rockpro64.

There are 2 reasons:
- All RK3399 dma-bus channels have been already used by I2S0/1/2
- RockPro64 does not have SPDIF optical nor coaxial connector,
just have 3pins

Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
---
.../boot/dts/rockchip/rk3399-rockpro64.dtsi | 28 +++++++++++++++++++
1 file changed, 28 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi
index 6e553ff47534..e35b30f8a46e 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi
@@ -76,6 +76,23 @@ sound {
dais = <&i2s1_p0>;
};

+ sound-dit {
+ compatible = "audio-graph-card";
+ label = "rockchip,rk3399";
+ 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: vcc12v-dcin {
compatible = "regulator-fixed";
regulator-name = "vcc12v_dcin";
@@ -698,6 +715,17 @@ &sdhci {
status = "okay";
};

+&spdif {
+ pinctrl-0 = <&spdif_bus_1>;
+ status = "disabled";
+
+ spdif_p0: port {
+ spdif_p0_0: endpoint {
+ remote-endpoint = <&dit_p0_0>;
+ };
+ };
+};
+
&spi1 {
status = "okay";

--
2.27.0
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