diff options
| author | Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm> | 2026-01-05 23:39:38 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2026-01-18 04:55:05 +0300 |
| commit | 6429d40e519fed71e2bd2afd59f9a379f9740a9b (patch) | |
| tree | 870e519311412ba4a2a0c48b738e2e91f39beaa0 | |
| parent | fc61fdfdc4dd03fa5cea784e1969ed3df049c6c8 (diff) | |
| download | linux-6429d40e519fed71e2bd2afd59f9a379f9740a9b.tar.xz | |
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>
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 48 |
1 files changed, 44 insertions, 4 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi index 2975e9451661..2bd25ef7f304 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi @@ -512,6 +512,13 @@ >; }; + 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 @@ -519,6 +526,13 @@ >; }; + 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 @@ -526,6 +540,13 @@ >; }; + 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 @@ -533,6 +554,13 @@ >; }; + 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 { |