From: Alex Bee <knaerzche@gmail.com>
Date: Fri, 18 Jun 2021 20:12:56 +0200
Subject: arm64: dts: rockchip: add SPDIF node for ROCK Pi 4
Git-commit: 697dd494cb1cf56acfb764214a1e4788e4d1a983
Patch-mainline: v5.16-rc1
References: git-fixes
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@gmail.com>
Link: https://lore.kernel.org/r/20210618181256.27992-6-knaerzche@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Ivan T. Ivanov <iivanov@suse.de>
---
arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi | 26 +++++++++++++++++++++
1 file changed, 26 insertions(+)
--- 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 @@
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";
@@ -631,6 +648,15 @@
status = "okay";
};
+&spdif {
+
+ spdif_p0: port {
+ spdif_p0_0: endpoint {
+ remote-endpoint = <&dit_p0_0>;
+ };
+ };
+};
+
&tcphy0 {
status = "okay";
};