linux-kernel - [PATCH 1/2] ARM: dts: rockchip: Add i2s nodes for RK3128

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Date: Mon,  6 May 2024 17:51:02 +0200
From: Alex Bee <knaerzche@...il.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiko Stuebner <heiko@...ech.de>
Cc: devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Alex Bee <knaerzche@...il.com>
Subject: [PATCH 1/2] ARM: dts: rockchip: Add i2s nodes for RK3128

RK3128 SoCs have two i2s controllers. i2s_8ch has 8 tx and 2 rx channels
and is internally hard-wired to the hdmi-controller respectivly the SoC's
analog codec. i2s_2ch has 2 tx and 2 rx channels and can also be used
externally as it's pins are exposed though pinctrl.

Signed-off-by: Alex Bee <knaerzche@...il.com>
---
 arch/arm/boot/dts/rockchip/rk3128.dtsi | 27 ++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm/boot/dts/rockchip/rk3128.dtsi b/arch/arm/boot/dts/rockchip/rk3128.dtsi
index fb98873fd94e..d0d1d7c2ab2f 100644
--- a/arch/arm/boot/dts/rockchip/rk3128.dtsi
+++ b/arch/arm/boot/dts/rockchip/rk3128.dtsi
@@ -360,6 +360,18 @@ usb_host_ohci: usb@...e0000 {
 		status = "disabled";
 	};
 
+	i2s_8ch: i2s@...00000 {
+		compatible = "rockchip,rk3128-i2s", "rockchip,rk3066-i2s";
+		reg = <0x10200000 0x1000>;
+		interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru SCLK_I2S0>, <&cru HCLK_I2S_8CH>;
+		clock-names = "i2s_clk", "i2s_hclk";
+		dmas = <&pdma 14>, <&pdma 15>;
+		dma-names = "tx", "rx";
+		#sound-dai-cells = <0>;
+		status = "disabled";
+	};
+
 	sdmmc: mmc@...14000 {
 		compatible = "rockchip,rk3128-dw-mshc", "rockchip,rk3288-dw-mshc";
 		reg = <0x10214000 0x4000>;
@@ -408,6 +420,21 @@ emmc: mmc@...1c000 {
 		status = "disabled";
 	};
 
+	i2s_2ch: i2s@...20000 {
+		compatible = "rockchip,rk3128-i2s", "rockchip,rk3066-i2s";
+		reg = <0x10220000 0x1000>;
+		interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru SCLK_I2S1>, <&cru HCLK_I2S_2CH>;
+		clock-names = "i2s_clk", "i2s_hclk";
+		dmas = <&pdma 0>, <&pdma 1>;
+		dma-names = "tx", "rx";
+		rockchip,playback-channels = <2>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&i2s_bus>;
+		#sound-dai-cells = <0>;
+		status = "disabled";
+	};
+
 	nfc: nand-controller@...00000 {
 		compatible = "rockchip,rk3128-nfc", "rockchip,rk2928-nfc";
 		reg = <0x10500000 0x4000>;
-- 
2.43.2