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Message-Id: <20260105-imx952-dts-v1-2-68b5a4d69710@nxp.com>
Date: Mon, 05 Jan 2026 19:48:41 +0800
From: "Peng Fan (OSS)" <peng.fan@....nxp.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>
Cc: devicetree@...r.kernel.org, imx@...ts.linux.dev,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Peng Fan <peng.fan@....com>
Subject: [PATCH 2/7] arm64: dts: imx952-evk: Enable I2C[2,3,4,6,7] bus
From: Peng Fan <peng.fan@....com>
Enable I2C bus[2,3,4,6,7] and the io-expanders connected to each I2C bus.
Signed-off-by: Peng Fan <peng.fan@....com>
---
arch/arm64/boot/dts/freescale/imx952-evk.dts | 166 +++++++++++++++++++++++++++
1 file changed, 166 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx952-evk.dts b/arch/arm64/boot/dts/freescale/imx952-evk.dts
index 2c753fcbae3c5d545f5d835bd70492667061d626..53cbdf8389b670e9fc6d294e912736f51dc35aec 100644
--- a/arch/arm64/boot/dts/freescale/imx952-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx952-evk.dts
@@ -17,6 +17,14 @@ aliases {
gpio2 = &gpio3;
gpio3 = &gpio4;
gpio4 = &gpio5;
+ i2c0 = &lpi2c1;
+ i2c1 = &lpi2c2;
+ i2c2 = &lpi2c3;
+ i2c3 = &lpi2c4;
+ i2c4 = &lpi2c5;
+ i2c5 = &lpi2c6;
+ i2c6 = &lpi2c7;
+ i2c7 = &lpi2c8;
mmc0 = &usdhc1;
mmc1 = &usdhc2;
serial0 = &lpuart1;
@@ -79,6 +87,111 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
};
};
+&lpi2c2 {
+ clock-frequency = <400000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_lpi2c2>;
+ status = "okay";
+
+ adp5585: io-expander@34 {
+ compatible = "adi,adp5585-00", "adi,adp5585";
+ reg = <0x34>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-reserved-ranges = <5 1>;
+ #pwm-cells = <3>;
+ };
+};
+
+&lpi2c3 {
+ clock-frequency = <400000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_lpi2c3>;
+ status = "okay";
+
+ i2c3_pcal6408: gpio@20 {
+ compatible = "nxp,pcal6408";
+ reg = <0x20>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ vcc-supply = <®_3p3v>;
+ };
+};
+
+&lpi2c4 {
+ clock-frequency = <400000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_lpi2c4>;
+ status = "okay";
+
+ i2c4_pcal6408: gpio@21 {
+ compatible = "nxp,pcal6408";
+ reg = <0x21>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <18 IRQ_TYPE_LEVEL_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2c4_pcal6408>;
+ vcc-supply = <®_3p3v>;
+ };
+};
+
+&lpi2c6 {
+ clock-frequency = <100000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_lpi2c6>;
+ status = "okay";
+
+ pcal6416: gpio@21 {
+ compatible = "nxp,pcal6416";
+ #gpio-cells = <2>;
+ gpio-controller;
+ reg = <0x21>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&gpio2>;
+ interrupts = <10 IRQ_TYPE_LEVEL_LOW>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pcal6416>;
+ vcc-supply = <®_3p3v>;
+
+ pdm-can-sel-hog {
+ gpio-hog;
+ gpios = <10 GPIO_ACTIVE_HIGH>;
+ output-low;
+ };
+
+ mqs-en-hog {
+ gpio-hog;
+ gpios = <15 GPIO_ACTIVE_HIGH>;
+ output-low;
+ };
+ };
+};
+
+&lpi2c7 {
+ clock-frequency = <1000000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_lpi2c7>;
+ status = "okay";
+
+ pcal6524: gpio@22 {
+ compatible = "nxp,pcal6524";
+ reg = <0x22>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pcal6524>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&gpio5>;
+ interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
+ };
+};
+
&lpuart1 {
/* console */
pinctrl-names = "default";
@@ -112,6 +225,59 @@ &usdhc2 {
};
&scmi_iomuxc {
+ pinctrl_lpi2c2: lpi2c2grp {
+ fsl,pins = <
+ IMX952_PAD_I2C2_SCL__AONMIX_TOP_LPI2C2_SCL 0x40000b9e
+ IMX952_PAD_I2C2_SDA__AONMIX_TOP_LPI2C2_SDA 0x40000b9e
+ >;
+ };
+
+ pinctrl_lpi2c3: lpi2c3grp {
+ fsl,pins = <
+ IMX952_PAD_GPIO_IO00__WAKEUPMIX_TOP_LPI2C3_SDA 0x40000b9e
+ IMX952_PAD_GPIO_IO01__WAKEUPMIX_TOP_LPI2C3_SCL 0x40000b9e
+ >;
+ };
+
+ pinctrl_lpi2c4: lpi2c4grp {
+ fsl,pins = <
+ IMX952_PAD_GPIO_IO30__WAKEUPMIX_TOP_LPI2C4_SDA 0x40000b9e
+ IMX952_PAD_GPIO_IO31__WAKEUPMIX_TOP_LPI2C4_SCL 0x40000b9e
+ >;
+ };
+
+ pinctrl_i2c4_pcal6408: i2c4pcal6408grp {
+ fsl,pins = <
+ IMX952_PAD_GPIO_IO18__WAKEUPMIX_TOP_GPIO2_IO_18 0x31e
+ >;
+ };
+
+ pinctrl_lpi2c6: lpi2c6grp {
+ fsl,pins = <
+ IMX952_PAD_GPIO_IO02__WAKEUPMIX_TOP_LPI2C6_SDA 0x40000b9e
+ IMX952_PAD_GPIO_IO03__WAKEUPMIX_TOP_LPI2C6_SCL 0x40000b9e
+ >;
+ };
+
+ pinctrl_lpi2c7: lpi2c7grp {
+ fsl,pins = <
+ IMX952_PAD_GPIO_IO08__WAKEUPMIX_TOP_LPI2C7_SDA 0x40000b9e
+ IMX952_PAD_GPIO_IO09__WAKEUPMIX_TOP_LPI2C7_SCL 0x40000b9e
+ >;
+ };
+
+ pinctrl_pcal6416: pcal6416grp {
+ fsl,pins = <
+ IMX952_PAD_GPIO_IO10__WAKEUPMIX_TOP_GPIO2_IO_10 0x31e
+ >;
+ };
+
+ pinctrl_pcal6524: pcal6524grp {
+ fsl,pins = <
+ IMX952_PAD_GPIO_IO36__WAKEUPMIX_TOP_GPIO5_IO_16 0x31e
+ >;
+ };
+
pinctrl_reg_usdhc2_vmmc: regusdhc2vmmcgrp {
fsl,pins = <
IMX952_PAD_SD2_RESET_B__WAKEUPMIX_TOP_GPIO3_IO_7 0x31e
--
2.37.1
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