From: Stefan Riedmueller <s.riedmueller@phytec.de>
Date: Fri, 5 Dec 2025 09:33:27 +0000 (+0100)
Subject: arm64: dts: imx8mp-phyboard-pollux: Enable i2c3
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=18c783cf09aadf0eab9d6a75806f7aebe559080e;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: imx8mp-phyboard-pollux: Enable i2c3

The i2c3 of the phyBOARD-Pollux is used on the CSI1 interface to connect
to imaging sensors. Thus define it so it can be easily enabled if
required.

Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Yannic Moog <y.moog@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts b/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts
index 6203e39bc01be..7d34b820e3213 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-phyboard-pollux-rdk.dts
@@ -228,6 +228,15 @@
 	};
 };
 
+&i2c3 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default", "gpio";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	pinctrl-1 = <&pinctrl_i2c3_gpio>;
+	sda-gpios = <&gpio5 18 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	scl-gpios = <&gpio5 19 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+};
+
 &ldb_lvds_ch1 {
 	remote-endpoint = <&panel1_in>;
 };
@@ -442,6 +451,20 @@
 		>;
 	};
 
+	pinctrl_i2c3: i2c3grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_I2C3_SCL__I2C3_SCL		0x400001c2
+			MX8MP_IOMUXC_I2C3_SDA__I2C3_SDA		0x400001c2
+		>;
+	};
+
+	pinctrl_i2c3_gpio: i2c3gpiogrp {
+		fsl,pins = <
+			MX8MP_IOMUXC_I2C3_SCL__GPIO5_IO18	0x1e2
+			MX8MP_IOMUXC_I2C3_SDA__GPIO5_IO19	0x1e2
+		>;
+	};
+
 	pinctrl_lvds1: lvds1grp {
 		fsl,pins = <
 			MX8MP_IOMUXC_SD2_WP__GPIO2_IO20		0x12