linux-kernel - [PATCH v3 1/2] arm64: dts: rockchip: rk356x: Add HDMI audio nodes

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Date:   Sat, 11 Jun 2022 08:52:59 +0200
From:   Nicolas Frattaroli <frattaroli.nicolas@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>
Cc:     Nicolas Frattaroli <frattaroli.nicolas@...il.com>,
        Michael Riesch <michael.riesch@...fvision.net>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 1/2] arm64: dts: rockchip: rk356x: Add HDMI audio nodes

This adds the i2s0 node and an hdmi-sound sound device to the
rk356x device tree. On the rk356[68], the i2s0 controller is
connected to HDMI audio.

Tested-by: Michael Riesch <michael.riesch@...fvision.net>
Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@...il.com>
---
 arch/arm64/boot/dts/rockchip/rk356x.dtsi | 33 ++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
index cc1c5a65c5e5..319981c3e9f7 100644
--- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi
@@ -183,6 +183,22 @@ opp-800000000 {
 		};
 	};
 
+	hdmi_sound: hdmi-sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "HDMI";
+		simple-audio-card,format = "i2s";
+		simple-audio-card,mclk-fs = <256>;
+		status = "disabled";
+
+		simple-audio-card,codec {
+			sound-dai = <&hdmi>;
+		};
+
+		simple-audio-card,cpu {
+			sound-dai = <&i2s0_8ch>;
+		};
+	};
+
 	pmu {
 		compatible = "arm,cortex-a55-pmu";
 		interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_HIGH>,
@@ -951,6 +967,23 @@ spdif: spdif@...60000 {
 		status = "disabled";
 	};
 
+	i2s0_8ch: i2s@...00000 {
+		compatible = "rockchip,rk3568-i2s-tdm";
+		reg = <0x0 0xfe400000 0x0 0x1000>;
+		interrupts = <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
+		assigned-clocks = <&cru CLK_I2S0_8CH_TX_SRC>, <&cru CLK_I2S0_8CH_RX_SRC>;
+		assigned-clock-rates = <1188000000>, <1188000000>;
+		clocks = <&cru MCLK_I2S0_8CH_TX>, <&cru MCLK_I2S0_8CH_RX>, <&cru HCLK_I2S0_8CH>;
+		clock-names = "mclk_tx", "mclk_rx", "hclk";
+		dmas = <&dmac1 0>;
+		dma-names = "tx";
+		resets = <&cru SRST_M_I2S0_8CH_TX>, <&cru SRST_M_I2S0_8CH_RX>;
+		reset-names = "tx-m", "rx-m";
+		rockchip,grf = <&grf>;
+		#sound-dai-cells = <0>;
+		status = "disabled";
+	};
+
 	i2s1_8ch: i2s@...10000 {
 		compatible = "rockchip,rk3568-i2s-tdm";
 		reg = <0x0 0xfe410000 0x0 0x1000>;
-- 
2.36.1