diff options
| author |   Ahmad Fatoum <a.fatoum@pengutronix.de> | 2025-02-18 19:38:16 +0100 |
|---|---|---|
| committer |   Shawn Guo <shawnguo@kernel.org> | 2025-03-11 09:40:17 +0800 |
| commit | 00fad74ebe56d8ad499cc21a5bfb7f8a1654e190 (patch) | |
| tree | 7a057f5b6a3b1acd586482e527c9519ce73c8f65 | |
| parent | arm64: dts: imx8mp-skov: move I2C2 pin control group into DTSI (diff) | |
| download | wireguard-linux-00fad74ebe56d8ad499cc21a5bfb7f8a1654e190.tar.xz wireguard-linux-00fad74ebe56d8ad499cc21a5bfb7f8a1654e190.zip | |
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: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi | 48 |
1 files changed, 44 insertions, 4 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi index e1a8aed511cd..29951a36e43e 100644 --- a/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mp-skov-reva.dtsi @@ -241,8 +241,11 @@ &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 @@ }; &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 @@ &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 @@ >; }; + 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 @@ >; }; + 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 @@ >; }; + 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 @@ >; }; + 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 |