From: Stefano Radaelli <stefano.radaelli21@gmail.com>
Date: Sun, 14 Dec 2025 21:52:49 +0000 (+0100)
Subject: arm64: dts: imx8mp-var-som: Move PCA9534 GPIO expander to Symphony carrier
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5ea98ce8b11969bae1441b5648b73242a9b99386;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: imx8mp-var-som: Move PCA9534 GPIO expander to Symphony carrier

The VAR-SOM-MX8MP module does not include the PCA9534 GPIO expander nor
the LED connected to it. These components are present only on the
Symphony carrier board and may vary across custom carrier designs.

Move the PCA9534 GPIO expander node and the associated LED definition
from the SOM device tree to the Symphony carrier DTS, ensuring the SOM
dtsi describes only hardware present on the module.

Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-var-som-symphony.dts b/arch/arm64/boot/dts/freescale/imx8mp-var-som-symphony.dts
index ea3c193bb6841..361e6122bdc35 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-var-som-symphony.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-var-som-symphony.dts
@@ -9,6 +9,16 @@
 	model = "Variscite VAR-SOM-MX8M-PLUS on Symphony-Board";
 	compatible = "variscite,var-som-mx8mp-symphony", "variscite,var-som-mx8mp", "fsl,imx8mp";
 
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		led-0 {
+			function = LED_FUNCTION_POWER;
+			gpios = <&pca9534 0 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
 	reg_usdhc2_vmmc: regulator-usdhc2-vmmc {
 		compatible = "regulator-fixed";
 		regulator-name = "VSD_3V3";
@@ -31,6 +41,33 @@
 	};
 };
 
+&i2c3 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	status = "okay";
+
+	/* GPIO expander */
+	pca9534: gpio@20 {
+		compatible = "nxp,pca9534";
+		reg = <0x20>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pca9534>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <15 IRQ_TYPE_EDGE_FALLING>;
+		wakeup-source;
+
+		usb3-sata-sel-hog {
+			gpio-hog;
+			gpios = <4 0>;
+			output-low;
+			line-name = "usb3_sata_sel";
+		};
+	};
+};
+
 /* SD-card */
 &usdhc2 {
 	pinctrl-names = "default", "state_100mhz", "state_200mhz";
@@ -45,6 +82,19 @@
 };
 
 &iomuxc {
+	pinctrl_i2c3: i2c3grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_I2C3_SCL__I2C3_SCL                                 0x400001c2
+			MX8MP_IOMUXC_I2C3_SDA__I2C3_SDA                                 0x400001c2
+		>;
+	};
+
+	pinctrl_pca9534: pca9534grp {
+		fsl,pins = <
+			MX8MP_IOMUXC_GPIO1_IO15__GPIO1_IO15                             0xc0
+		>;
+	};
+
 	pinctrl_usdhc2_gpio: usdhc2-gpiogrp {
 		fsl,pins = <
 			MX8MP_IOMUXC_GPIO1_IO14__GPIO1_IO14                             0x1c4
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi
index 949d9878f395d..158a78ec9656a 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp-var-som.dtsi
@@ -19,16 +19,6 @@
 		stdout-path = &uart2;
 	};
 
-	gpio-leds {
-	        compatible = "gpio-leds";
-
-	        led-0 {
-	                function = LED_FUNCTION_POWER;
-	                gpios = <&pca9534 0 GPIO_ACTIVE_HIGH>;
-	                linux,default-trigger = "heartbeat";
-	        };
-	};
-
 	memory@40000000 {
 		device_type = "memory";
 		reg = <0x0 0x40000000 0 0xc0000000>,
@@ -216,33 +206,6 @@
 	};
 };
 
-&i2c3 {
-        clock-frequency = <400000>;
-        pinctrl-names = "default";
-        pinctrl-0 = <&pinctrl_i2c3>;
-        status = "okay";
-
-	/* GPIO expander */
-	pca9534: gpio@20 {
-	        compatible = "nxp,pca9534";
-	        reg = <0x20>;
-	        pinctrl-names = "default";
-	        pinctrl-0 = <&pinctrl_pca9534>;
-	        gpio-controller;
-	        #gpio-cells = <2>;
-	        interrupt-parent = <&gpio1>;
-	        interrupts = <15 IRQ_TYPE_EDGE_FALLING>;
-	        wakeup-source;
-
-	        usb3-sata-sel-hog {
-	                gpio-hog;
-	                gpios = <4 0>;
-	                output-low;
-	                line-name = "usb3_sata_sel";
-	        };
-	};
-};
-
 /* Console */
 &uart2 {
         pinctrl-names = "default";
@@ -298,19 +261,6 @@
 		>;
 	};
 
-	pinctrl_i2c3: i2c3grp {
-	        fsl,pins = <
-	                MX8MP_IOMUXC_I2C3_SCL__I2C3_SCL                                 0x400001c2
-	                MX8MP_IOMUXC_I2C3_SDA__I2C3_SDA                                 0x400001c2
-	        >;
-	};
-
-	pinctrl_pca9534: pca9534grp {
-	        fsl,pins = <
-	                MX8MP_IOMUXC_GPIO1_IO15__GPIO1_IO15                             0xc0
-	        >;
-	};
-
 	pinctrl_pmic: pmicgrp {
 		fsl,pins = <
 			MX8MP_IOMUXC_SPDIF_RX__GPIO5_IO04				0x1c0