67 lines
1.6 KiB
Diff
67 lines
1.6 KiB
Diff
From 697dd494cb1cf56acfb764214a1e4788e4d1a983 Mon Sep 17 00:00:00 2001
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From: Alex Bee <knaerzche@gmail.com>
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Date: Fri, 18 Jun 2021 20:12:56 +0200
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Subject: [PATCH 020/478] arm64: dts: rockchip: add SPDIF node for ROCK Pi 4
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Add a SPDIF audio-graph-card to ROCK Pi 4 device tree.
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It's not enabled by default since all dma channels are used by
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the (already) enabled i2s0/1/2 and the pin is muxed with GPIO4_C5
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which might be in use already.
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If enabled SPDIF_TX will be available at pin #15.
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Signed-off-by: Alex Bee <knaerzche@gmail.com>
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Link: https://lore.kernel.org/r/20210618181256.27992-6-knaerzche@gmail.com
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Signed-off-by: Heiko Stuebner <heiko@sntech.de>
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---
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.../boot/dts/rockchip/rk3399-rock-pi-4.dtsi | 26 +++++++++++++++++++
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1 file changed, 26 insertions(+)
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diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
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index b49072af4014..98136c88fa49 100644
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--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
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+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi
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@@ -42,6 +42,23 @@ sound {
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dais = <&i2s0_p0>;
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};
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+ sound-dit {
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+ compatible = "audio-graph-card";
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+ label = "SPDIF";
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+ dais = <&spdif_p0>;
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+ };
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+
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+ spdif-dit {
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+ compatible = "linux,spdif-dit";
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+ #sound-dai-cells = <0>;
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+
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+ port {
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+ dit_p0_0: endpoint {
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+ remote-endpoint = <&spdif_p0_0>;
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+ };
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+ };
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+ };
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+
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vcc12v_dcin: dc-12v {
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compatible = "regulator-fixed";
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regulator-name = "vcc12v_dcin";
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@@ -631,6 +648,15 @@ &sdhci {
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status = "okay";
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};
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+&spdif {
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+
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+ spdif_p0: port {
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+ spdif_p0_0: endpoint {
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+ remote-endpoint = <&dit_p0_0>;
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+ };
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+ };
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+};
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+
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&tcphy0 {
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status = "okay";
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};
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--
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2.35.3
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