[PATCH 1/3] ARM: imx6qdl-sabreauto.dtsi: add max7310 support

Shawn Guo
2015-03-11T01:46:09Z

On Mon, Mar 09, 2015 at 05:28:06PM +0800, Peter Chen wrote:
> max7310 is an i2c interface gpio expander
>
> Signed-off-by: Peter Chen <peter.chen@freescale.com>
> ---
> arch/arm/boot/dts/imx6qdl-sabreauto.dtsi | 43 ++++++++++++++++++++++++++++++++
> 1 file changed, 43 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
> index 009abd6..51acfec 100644
> --- a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
> +++ b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
> @@ -28,6 +28,13 @@
> };
> };
>
> + max7310_reset: max7310-reset {
> + compatible = "gpio-reset";

The mainline kernel doesn't seem to have a gpio-reset driver/binding
yet.

Shawn

> + reset-gpios = <&gpio1 15 GPIO_ACTIVE_LOW>;
> + reset-delay-us = <1>;
> + #reset-cells = <0>;
> + };
> +
> sound-spdif {
> compatible = "fsl,imx-audio-spdif",
> "fsl,imx-sabreauto-spdif";
> @@ -182,6 +189,35 @@
> };
> };
>
> +&i2c3 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_i2c3>;
> + pinctrl-assert-gpios = <&gpio5 4 GPIO_ACTIVE_HIGH>;
> + status = "okay";
> +
> + max7310_a: gpio at 30 {
> + compatible = "maxim,max7310";
> + reg = <0x30>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + resets = <&max7310_reset>;
> + };
> +
> + max7310_b: gpio at 32 {
> + compatible = "maxim,max7310";
> + reg = <0x32>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + };
> +
> + max7310_c: gpio at 34 {
> + compatible = "maxim,max7310";
> + reg = <0x34>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + };
> +};
> +
> &iomuxc {
> pinctrl-names = "default";
> pinctrl-0 = <&pinctrl_hog>;
> @@ -265,6 +301,13 @@
> >;
> };
>
> + pinctrl_i2c3: i2c3grp {
> + fsl,pins = <
> + MX6QDL_PAD_GPIO_3__I2C3_SCL 0x4001b8b1
> + MX6QDL_PAD_EIM_D18__I2C3_SDA 0x4001b8b1
> + >;
> + };
> +
> pinctrl_pwm3: pwm1grp {
> fsl,pins = <
> MX6QDL_PAD_SD4_DAT1__PWM3_OUT 0x1b0b1
> --
> 1.9.1
>