Commit 00fad74e authored by Ahmad Fatoum's avatar Ahmad Fatoum Committed by Shawn Guo
Browse files

arm64: dts: imx8mp-skov: describe I2C bus recovery for all controllers 



I2C bus recovery can be used to recover when SCL/SDA are stuck low.
To be able to use it, add the necessary GPIO and pinctrl entries.

Signed-off-by: default avatarAhmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent 505aa4c7

arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi

+44 −4
Original line number Diff line number Diff line
@@ -241,8 +241,11 @@ &flexcan2 { 


&i2c1 {

	clock-frequency = <100000>;

	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";



	pmic@25 {
@@ -334,14 +337,20 @@ reg_nvcc_sd2: LDO5 { 
};



&i2c2 {

	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)>;

};



&i2c3 {

	clock-frequency = <400000>;

	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";



	i2c_rtc: rtc@51 {
@@ -356,8 +365,11 @@ i2c_rtc: rtc@51 { 


&i2c4 {

	clock-frequency = <380000>;

	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";



	switch: switch@5f {
@@ -569,6 +581,13 @@ MX8MP_IOMUXC_I2C1_SDA__I2C1_SDA 0x400001c2 
		>;

	};



	pinctrl_i2c1_gpio: i2c1gpiogrp {

		fsl,pins = <

			MX8MP_IOMUXC_I2C1_SCL__GPIO5_IO14			0x400001c2

			MX8MP_IOMUXC_I2C1_SDA__GPIO5_IO15			0x400001c2

		>;

	};



	pinctrl_i2c2: i2c2grp {

		fsl,pins = <

			MX8MP_IOMUXC_I2C2_SCL__I2C2_SCL				0x400001c2
@@ -576,6 +595,13 @@ MX8MP_IOMUXC_I2C2_SDA__I2C2_SDA 0x400001c2 
		>;

	};



	pinctrl_i2c2_gpio: i2c2gpiogrp {

		fsl,pins = <

			MX8MP_IOMUXC_I2C2_SCL__GPIO5_IO16			0x400001c2

			MX8MP_IOMUXC_I2C2_SDA__GPIO5_IO17			0x400001c2

		>;

	};



	pinctrl_i2c3: i2c3grp {

		fsl,pins = <

			MX8MP_IOMUXC_I2C3_SCL__I2C3_SCL				0x400001c2
@@ -583,6 +609,13 @@ MX8MP_IOMUXC_I2C3_SDA__I2C3_SDA 0x400001c2 
		>;

	};



	pinctrl_i2c3_gpio: i2c3gpiogrp {

		fsl,pins = <

			MX8MP_IOMUXC_I2C3_SCL__GPIO5_IO18			0x400001c2

			MX8MP_IOMUXC_I2C3_SDA__GPIO5_IO19			0x400001c2

		>;

	};



	pinctrl_i2c4: i2c4grp {

		fsl,pins = <

			MX8MP_IOMUXC_I2C4_SCL__I2C4_SCL				0x400001c3
@@ -590,6 +623,13 @@ MX8MP_IOMUXC_I2C4_SDA__I2C4_SDA 0x400001c3 
		>;

	};



	pinctrl_i2c4_gpio: i2c4gpiogrp {

		fsl,pins = <

			MX8MP_IOMUXC_I2C4_SCL__GPIO5_IO20			0x400001c3

			MX8MP_IOMUXC_I2C4_SDA__GPIO5_IO21			0x400001c3

		>;

	};



	pinctrl_pmic: pmicirqgrp {

		fsl,pins = <

			MX8MP_IOMUXC_GPIO1_IO03__GPIO1_IO03			0x41