On 29/01/2024 23:14, Frank Li wrote:
> Add i2c3 bus node. Add i2c gpio expandor pca6416 and i2c mux pca9548.
>
> Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
> ---
> arch/arm64/boot/dts/freescale/imx8dxl-evk.dts | 55 +++++++++++++++++++
> 1 file changed, 55 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8dxl-evk.dts b/arch/arm64/boot/dts/freescale/imx8dxl-evk.dts
> index b972658efb176..d313cf1dd79d5 100644
> --- a/arch/arm64/boot/dts/freescale/imx8dxl-evk.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8dxl-evk.dts
> @@ -261,6 +261,61 @@ i2c@6 {
> };
> };
>
> +&i2c3 {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + clock-frequency = <100000>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c3>;
> + status = "okay";
> +
> + pca6416_3: gpio@20 {
> + compatible = "ti,tca6416";
> + reg = <0x20>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + interrupt-parent = <&lsio_gpio2>;
> + interrupts = <5 IRQ_TYPE_EDGE_RISING>;
> + };
> +
> + pca9548_2: i2c-mux@70 {
> + compatible = "nxp,pca9548";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0x70>;
reg is always the second property.
https://www.kernel.org/doc/html/latest/devicetree/bindings/dts-coding-style.html#order-of-properties-in-device-node
Best regards,
Krzysztof
