linux-kernel - [PATCH v4 3/5] arm64: dts: fsd: Add I2S DAI node for Tesla FSD

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Message-Id: <20230116103823.90757-4-p.rajanbabu@samsung.com>
Date:   Mon, 16 Jan 2023 16:08:21 +0530
From:   Padmanabhan Rajanbabu <p.rajanbabu@...sung.com>
To:     lgirdwood@...il.com, broonie@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, s.nawrocki@...sung.com,
        perex@...ex.cz, tiwai@...e.com, pankaj.dubey@...sung.com,
        alim.akhtar@...sung.com, rcsekar@...sung.com,
        aswani.reddy@...sung.com
Cc:     alsa-devel@...a-project.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        Padmanabhan Rajanbabu <p.rajanbabu@...sung.com>
Subject: [PATCH v4 3/5] arm64: dts: fsd: Add I2S DAI node for Tesla FSD

Add device tree node for I2S0 and I2S1 CPU DAI instances for Tesla
FSD platform.

FSD SoC has 2 I2S instances driving stereo channel I2S audio playback
and capture with external DMA support.

Signed-off-by: Padmanabhan Rajanbabu <p.rajanbabu@...sung.com>
---
 arch/arm64/boot/dts/tesla/fsd-evb.dts      |  8 +++++
 arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi | 14 +++++++++
 arch/arm64/boot/dts/tesla/fsd.dtsi         | 34 ++++++++++++++++++++++
 3 files changed, 56 insertions(+)

diff --git a/arch/arm64/boot/dts/tesla/fsd-evb.dts b/arch/arm64/boot/dts/tesla/fsd-evb.dts
index af3862e9fe3b..7650c20f02b4 100644
--- a/arch/arm64/boot/dts/tesla/fsd-evb.dts
+++ b/arch/arm64/boot/dts/tesla/fsd-evb.dts
@@ -34,6 +34,14 @@
 	clock-frequency = <24000000>;
 };
 
+&i2s_0 {
+	status = "okay";
+};
+
+&i2s_1 {
+	status = "okay";
+};
+
 &m_can0 {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi b/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi
index 73cb388d6ac1..3cc15b48cb15 100644
--- a/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi
+++ b/arch/arm64/boot/dts/tesla/fsd-pinctrl.dtsi
@@ -367,6 +367,20 @@
 		samsung,pin-pud = <FSD_PIN_PULL_UP>;
 		samsung,pin-drv = <FSD_PIN_DRV_LV4>;
 	};
+
+	i2s0_bus: i2s0-bus-pins {
+		samsung,pins = "gpd1-0", "gpd1-1", "gpd1-2", "gpd1-3", "gpd1-4";
+		samsung,pin-function = <FSD_PIN_FUNC_2>;
+		samsung,pin-pud = <FSD_PIN_PULL_DOWN>;
+		samsung,pin-drv = <FSD_PIN_DRV_LV4>;
+	};
+
+	i2s1_bus: i2s1-bus-pins {
+		samsung,pins = "gpd2-0", "gpd2-1", "gpd2-2", "gpd2-3", "gpd2-4";
+		samsung,pin-function = <FSD_PIN_FUNC_2>;
+		samsung,pin-pud = <FSD_PIN_PULL_DOWN>;
+		samsung,pin-drv = <FSD_PIN_DRV_LV4>;
+	};
 };
 
 &pinctrl_pmu {
diff --git a/arch/arm64/boot/dts/tesla/fsd.dtsi b/arch/arm64/boot/dts/tesla/fsd.dtsi
index 0b68d244f2fb..1c53c68efd53 100644
--- a/arch/arm64/boot/dts/tesla/fsd.dtsi
+++ b/arch/arm64/boot/dts/tesla/fsd.dtsi
@@ -760,6 +760,40 @@
 			status = "disabled";
 		};
 
+		i2s_0: i2s@...e0000 {
+			compatible = "tesla,fsd-i2s";
+			reg = <0x0 0x140e0000 0x0 0x100>;
+			interrupts = <GIC_SPI 206 IRQ_TYPE_LEVEL_HIGH>;
+			dmas = <&pdma1 14>, <&pdma1 13>, <&pdma1 12>;
+			dma-names = "tx", "rx", "tx-sec";
+			#clock-cells = <1>;
+			clocks = <&clock_peric PERIC_PCLK_TDM0>,
+				 <&clock_peric PERIC_HCLK_TDM0>,
+				 <&clock_peric PERIC_HCLK_TDM0>;
+			clock-names = "iis", "i2s_opclk0", "i2s_opclk1";
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2s0_bus>;
+			#sound-dai-cells = <1>;
+			status = "disabled";
+		};
+
+		i2s_1: i2s@...f0000 {
+			compatible = "tesla,fsd-i2s";
+			reg = <0x0 0x140f0000 0x0 0x100>;
+			interrupts = <GIC_SPI 207 IRQ_TYPE_LEVEL_HIGH>;
+			dmas = <&pdma1 17>, <&pdma1 16>, <&pdma1 15>;
+			dma-names = "tx", "rx", "tx-sec";
+			#clock-cells = <1>;
+			clocks = <&clock_peric PERIC_PCLK_TDM1>,
+				 <&clock_peric PERIC_HCLK_TDM1>,
+				 <&clock_peric PERIC_HCLK_TDM1>;
+			clock-names = "iis", "i2s_opclk0", "i2s_opclk1";
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2s1_bus>;
+			#sound-dai-cells = <1>;
+			status = "disabled";
+		};
+
 		pinctrl_pmu: pinctrl@...f0000 {
 			compatible = "tesla,fsd-pinctrl";
 			reg = <0x0 0x114f0000 0x0 0x1000>;
-- 
2.17.1