diff options
| author | Leonard Crestez <leonard.crestez@nxp.com> | 2019-04-21 10:27:46 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2019-04-22 04:26:04 +0300 |
| commit | 7b2ac489c3972bb73951c04fe438f0af0ef93fb3 (patch) | |
| tree | 121962fc8e7b8d2a938e11e2d468a4aa8dd1814d /arch/arm64/boot/dts | |
| parent | 6b2bcbd8f9dbde57cc0400497944822bc8884b91 (diff) | |
| download | linux-7b2ac489c3972bb73951c04fe438f0af0ef93fb3.tar.xz | |
arm64: dts: imx8qxp-mek: Add i2c1 with pca9646
Add an initial description of the i2c1 bus with a pca9646 i2c switch and
various gpio expanders and sensors behind that. Only add the sensors
which already have upstream drivers.
According to the datasheet the pca9646 is software compatible with
pca9546 so no driver changes should be required.
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm64/boot/dts')
| -rw-r--r-- | arch/arm64/boot/dts/freescale/imx8qxp-mek.dts | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts index 03aad66545c5..bfdada2db176 100644 --- a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts +++ b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts @@ -60,6 +60,82 @@ }; }; +&adma_i2c1 { + #address-cells = <1>; + #size-cells = <0>; + clock-frequency = <100000>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_lpi2c1 &pinctrl_ioexp_rst>; + status = "okay"; + + i2c-switch@71 { + compatible = "nxp,pca9646", "nxp,pca9546"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x71>; + reset-gpios = <&lsio_gpio1 1 GPIO_ACTIVE_LOW>; + + i2c@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + + max7322: gpio@68 { + compatible = "maxim,max7322"; + reg = <0x68>; + gpio-controller; + #gpio-cells = <2>; + }; + }; + + i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + }; + + i2c@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + + pressure-sensor@60 { + compatible = "fsl,mpl3115"; + reg = <0x60>; + }; + }; + + i2c@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <3>; + + pca9557_a: gpio@1a { + compatible = "nxp,pca9557"; + reg = <0x1a>; + gpio-controller; + #gpio-cells = <2>; + }; + + pca9557_b: gpio@1d { + compatible = "nxp,pca9557"; + reg = <0x1d>; + gpio-controller; + #gpio-cells = <2>; + }; + + light-sensor@44 { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_isl29023>; + compatible = "isil,isl29023"; + reg = <0x44>; + interrupt-parent = <&lsio_gpio1>; + interrupts = <2 IRQ_TYPE_EDGE_FALLING>; + }; + }; + }; +}; + &usdhc1 { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usdhc1>; @@ -100,6 +176,25 @@ >; }; + pinctrl_ioexp_rst: ioexp_rst_grp { + fsl,pins = < + IMX8QXP_SPI2_SDO_LSIO_GPIO1_IO01 0x06000021 + >; + }; + + pinctrl_isl29023: isl29023grp { + fsl,pins = < + IMX8QXP_SPI2_SDI_LSIO_GPIO1_IO02 0x00000021 + >; + }; + + pinctrl_lpi2c1: lpi2c1grp { + fsl,pins = < + IMX8QXP_USB_SS3_TC1_ADMA_I2C1_SCL 0x06000021 + IMX8QXP_USB_SS3_TC3_ADMA_I2C1_SDA 0x06000021 + >; + }; + pinctrl_lpuart0: lpuart0grp { fsl,pins = < IMX8QXP_UART0_RX_ADMA_UART0_RX 0x06000020 |