arm64: dts: imx8mq-librem5: Enable I2C recovery

i2c-imx can perform bus recovery by temporarily switching I2C pins
into GPIO mode. To do so, it needs GPIO and pinctrl handles to be
provided in the device tree.

Suggested-by: Denis Sergeevich <galilley@gmail.com>
Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Author: dos1

arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi

@@ -512,27 +512,55 @@
 		>;
 	};
 
+	pinctrl_i2c1_gpio: i2c1-gpiogrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_I2C1_SCL_GPIO5_IO14	0x26
+			MX8MQ_IOMUXC_I2C1_SDA_GPIO5_IO15	0x26
+		>;
+	};
+
 	pinctrl_i2c2: i2c2grp {
 		fsl,pins = <
 			MX8MQ_IOMUXC_I2C2_SCL_I2C2_SCL		0x40000026
 			MX8MQ_IOMUXC_I2C2_SDA_I2C2_SDA		0x40000026
 		>;
 	};
 
+	pinctrl_i2c2_gpio: i2c2-gpiogrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_I2C2_SCL_GPIO5_IO16	0x26
+			MX8MQ_IOMUXC_I2C2_SDA_GPIO5_IO17	0x26
+		>;
+	};
+
 	pinctrl_i2c3: i2c3grp {
 		fsl,pins = <
 			MX8MQ_IOMUXC_I2C3_SCL_I2C3_SCL		0x40000026
 			MX8MQ_IOMUXC_I2C3_SDA_I2C3_SDA		0x40000026
 		>;
 	};
 
+	pinctrl_i2c3_gpio: i2c3-gpiogrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_I2C3_SCL_GPIO5_IO18	0x26
+			MX8MQ_IOMUXC_I2C3_SDA_GPIO5_IO19	0x26
+		>;
+	};
+
 	pinctrl_i2c4: i2c4grp {
 		fsl,pins = <
 			MX8MQ_IOMUXC_I2C4_SCL_I2C4_SCL		0x40000026
 			MX8MQ_IOMUXC_I2C4_SDA_I2C4_SDA		0x40000026
 		>;
 	};
 
+	pinctrl_i2c4_gpio: i2c4-gpiogrp {
+		fsl,pins = <
+			MX8MQ_IOMUXC_I2C4_SCL_GPIO5_IO20	0x26
+			MX8MQ_IOMUXC_I2C4_SDA_GPIO5_IO21	0x26
+		>;
+	};
+
 	pinctrl_keys: keysgrp {
 		fsl,pins = <
 			/* VOL- */
@@ -782,8 +810,11 @@
 
 &i2c1 {
 	clock-frequency = <384000>;
-	pinctrl-names = "default";
+	pinctrl-names = "default", "gpio";
 	pinctrl-0 = <&pinctrl_i2c1>;
+	pinctrl-1 = <&pinctrl_i2c1_gpio>;
+	scl-gpios = <&gpio5 14 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	sda-gpios = <&gpio5 15 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 	status = "okay";
 
 	typec_pd: usb-pd@3f {
@@ -982,8 +1013,11 @@
 
 &i2c2 {
 	clock-frequency = <384000>;
-	pinctrl-names = "default";
+	pinctrl-names = "default", "gpio";
 	pinctrl-0 = <&pinctrl_i2c2>;
+	pinctrl-1 = <&pinctrl_i2c2_gpio>;
+	scl-gpios = <&gpio5 16 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	sda-gpios = <&gpio5 17 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 	status = "okay";
 
 	magnetometer: magnetometer@1e	{
@@ -1031,8 +1065,11 @@
 
 &i2c3 {
 	clock-frequency = <384000>;
-	pinctrl-names = "default";
+	pinctrl-names = "default", "gpio";
 	pinctrl-0 = <&pinctrl_i2c3>;
+	pinctrl-1 = <&pinctrl_i2c3_gpio>;
+	scl-gpios = <&gpio5 18 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	sda-gpios = <&gpio5 19 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 	status = "okay";
 
 	codec: audio-codec@1a {
@@ -1121,8 +1158,11 @@
 
 &i2c4 {
 	clock-frequency = <384000>;
-	pinctrl-names = "default";
+	pinctrl-names = "default", "gpio";
 	pinctrl-0 = <&pinctrl_i2c4>;
+	pinctrl-1 = <&pinctrl_i2c4_gpio>;
+	scl-gpios = <&gpio5 20 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
+	sda-gpios = <&gpio5 21 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
 	status = "okay";
 
 	vcm@c {