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From: Shengjiu Wang <shengjiu.wang@nxp.com>
To: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org,
	shawnguo@kernel.org, s.hauer@pengutronix.de,
	kernel@pengutronix.de, festevam@gmail.com,
	devicetree@vger.kernel.org, imx@lists.linux.dev,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, shengjiu.wang@gmail.com,
	carlos.song@nxp.com
Subject: [PATCH v2 2/6] arm64: dts: imx943-evk: add lpi2c support
Date: Wed, 28 May 2025 09:58:33 +0800	[thread overview]
Message-ID: <20250528015837.488376-3-shengjiu.wang@nxp.com> (raw)
In-Reply-To: <20250528015837.488376-1-shengjiu.wang@nxp.com>

From: Carlos Song <carlos.song@nxp.com>

Add lpi2c and i2c-mux support for imx943 evk board.

Signed-off-by: Carlos Song <carlos.song@nxp.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx943-evk.dts | 132 +++++++++++++++++++
 1 file changed, 132 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx943-evk.dts b/arch/arm64/boot/dts/freescale/imx943-evk.dts
index cc8f3e6a1789..a566b9d8b813 100644
--- a/arch/arm64/boot/dts/freescale/imx943-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx943-evk.dts
@@ -12,6 +12,9 @@ / {
 	model = "NXP i.MX943 EVK board";
 
 	aliases {
+		i2c2 = &lpi2c3;
+		i2c3 = &lpi2c4;
+		i2c5 = &lpi2c6;
 		mmc0 = &usdhc1;
 		mmc1 = &usdhc2;
 		serial0 = &lpuart1;
@@ -53,6 +56,113 @@ memory@80000000 {
 	};
 };
 
+&lpi2c3 {
+	clock-frequency = <400000>;
+	pinctrl-0 = <&pinctrl_lpi2c3>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	pca9548_i2c3: i2c-mux@77 {
+		compatible = "nxp,pca9548";
+		reg = <0x77>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		i2c@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		i2c@1 {
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		i2c@2 {
+			reg = <2>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		i2c@3 {
+			reg = <3>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		i2c@4 {
+			reg = <4>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		i2c@5 {
+			reg = <5>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		i2c@6 {
+			reg = <6>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		i2c@7 {
+			reg = <7>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+	};
+};
+
+&lpi2c4 {
+	clock-frequency = <400000>;
+	pinctrl-0 = <&pinctrl_lpi2c4>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&lpi2c6 {
+	clock-frequency = <400000>;
+	pinctrl-0 = <&pinctrl_lpi2c6>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	pca9544_i2c6: i2c-mux@77 {
+		compatible = "nxp,pca9544";
+		reg = <0x77>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		i2c@0 {
+			reg = <0>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		i2c@1 {
+			reg = <1>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		i2c@2 {
+			reg = <2>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		i2c@3 {
+			reg = <3>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+	};
+};
+
 &lpuart1 {
 	pinctrl-0 = <&pinctrl_uart1>;
 	pinctrl-names = "default";
@@ -60,6 +170,28 @@ &lpuart1 {
 };
 
 &scmi_iomuxc {
+
+	pinctrl_lpi2c3: lpi2c3grp {
+		fsl,pins = <
+			IMX94_PAD_GPIO_IO16__LPI2C3_SDA		0x40000b9e
+			IMX94_PAD_GPIO_IO17__LPI2C3_SCL		0x40000b9e
+		>;
+	};
+
+	pinctrl_lpi2c4: lpi2c4grp {
+		fsl,pins = <
+			IMX94_PAD_GPIO_IO18__LPI2C4_SDA		0x40000b9e
+			IMX94_PAD_GPIO_IO19__LPI2C4_SCL		0x40000b9e
+		>;
+	};
+
+	pinctrl_lpi2c6: lpi2c6grp {
+		fsl,pins = <
+			IMX94_PAD_GPIO_IO29__LPI2C6_SDA		0x40000b9e
+			IMX94_PAD_GPIO_IO28__LPI2C6_SCL		0x40000b9e
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			IMX94_PAD_UART1_TXD__LPUART1_TX		0x31e
-- 
2.34.1


  parent reply	other threads:[~2025-05-28  2:00 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-28  1:58 [PATCH v2 0/6] arm64: dts: imx943: Add sound card support Shengjiu Wang
2025-05-28  1:58 ` [PATCH v2 1/6] arm64: dts: imx94: Add micfil and mqs device nodes Shengjiu Wang
2025-05-28 15:11   ` Frank Li
2025-05-28  1:58 ` Shengjiu Wang [this message]
2025-05-28  1:58 ` [PATCH v2 3/6] arm64: dts: imx943-evk: add i2c io expander support Shengjiu Wang
2025-05-28  1:58 ` [PATCH v2 4/6] arm64: dts: imx943-evk: add sound-wm8962 support Shengjiu Wang
2025-05-28  8:37   ` Marco Felsch
2025-05-30  2:21     ` Shengjiu Wang
2025-05-30  8:29       ` Marco Felsch
2025-05-28  1:58 ` [PATCH v2 5/6] arm64: dts: imx943-evk: add bt-sco sound card support Shengjiu Wang
2025-05-28  1:58 ` [PATCH v2 6/6] arm64: dts: imx943-evk: Add PDM microphone " Shengjiu Wang
2025-06-30  3:30 ` [PATCH v2 0/6] arm64: dts: imx943: Add " Shawn Guo

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