[PATCH v2] arm64: dts: rockchip: add spdif sound node for rock64

Katsuhiro Suzuki
2018-09-17T12:26:33Z

This patch adds sound card node for rock64. Currently we can support
S/PDIF only. It seems the lack of codec driver of rk3328 to enable
analog audio out.

Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
---
.../arm64/boot/dts/rockchip/rk3328-rock64.dts | 29 +++++++++++++++++++
1 file changed, 29 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts b/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
index 5852061e497b..9ee4f57557f3 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3328-rock64.dts
@@ -62,6 +62,23 @@
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
};
+
+ sound {
+ compatible = "audio-graph-card";
+ label = "rockchip,rk3328";
+ dais = <&spdif_p0>;
+ };
+
+ spdif-dit {
+ compatible = "linux,spdif-dit";
+ #sound-dai-cells = <0>;
+
+ port {
+ dit_p0_0: endpoint {
+ remote-endpoint = <&spdif_p0_0>;
+ };
+ };
+ };
};

&cpu0 {
@@ -261,6 +278,18 @@
status = "okay";
};

+&spdif {
+ pinctrl-0 = <&spdifm0_tx>;
+ status = "okay";
+ #sound-dai-cells = <0>;
+
+ spdif_p0: port {
+ spdif_p0_0: endpoint {
+ remote-endpoint = <&dit_p0_0>;
+ };
+ };
+};
+
&tsadc {
rockchip,hw-tshut-mode = <0>;
rockchip,hw-tshut-polarity = <0>;
--
2.18.0