[PATCH] ARM: dts: imx7d-pico: Add Wifi support

Shawn Guo
2017-08-18T01:51:55Z

On Thu, Aug 17, 2017 at 03:25:20PM -0300, Vanessa Maegima wrote:
> imx7d-pico has an ap6212 wifi chip connected to usdhc2 port.
>
> Add support for the usdhc2 port and to the WL_REG_ON regulator
> so Wifi can be functional on this board.
>
> Signed-off-by: Vanessa Maegima <vanessa.maegima@nxp.com>
> ---
> arch/arm/boot/dts/imx7d-pico.dts | 40 ++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 40 insertions(+)
>
> diff --git a/arch/arm/boot/dts/imx7d-pico.dts b/arch/arm/boot/dts/imx7d-pico.dts
> index e78c2c9..db9f345 100644
> --- a/arch/arm/boot/dts/imx7d-pico.dts
> +++ b/arch/arm/boot/dts/imx7d-pico.dts
> @@ -52,6 +52,17 @@
> reg = <0x80000000 0x80000000>;
> };
>
> + reg_ap6212: regulator-ap6212 {
> + compatible = "regulator-fixed";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_reg_ap6212>;
> + regulator-name = "AP6212";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + gpio = <&gpio4 16 GPIO_ACTIVE_HIGH>;
> + enable-active-high;

Bad indentation.

> + };
> +
> reg_2p5v: regulator-2p5v {
> compatible = "regulator-fixed";
> regulator-name = "2P5V";
> @@ -271,6 +282,17 @@
> status = "okay";
> };
>
> +&usdhc2 { /* Wifi SDIO */
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usdhc2>;
> + no-1-8-v;
> + non-removable;
> + keep-power-in-suspend;
> + wakeup-source;
> + vmmc-supply = <&reg_ap6212>;
> + status = "okay";
> +};
> +
> &usdhc3 {
> pinctrl-names = "default", "state_100mhz", "state_200mhz";
> pinctrl-0 = <&pinctrl_usdhc3>;
> @@ -326,6 +348,13 @@
> >;
> };
>
> + pinctrl_reg_ap6212: regap6212grp {
> + fsl,pins = <
> + MX7D_PAD_ECSPI1_SCLK__GPIO4_IO16 0x59
> + MX7D_PAD_ECSPI1_SS0__GPIO4_IO19 0x59 /* WL_HOST_WAKE */

I only see gpio4_16 is used in regulator-ap6212. Why do we need to set
up GPIO4_IO19 here?

Shawn

> + >;
> + };
> +
> pinctrl_sai1: sai1grp {
> fsl,pins = <
> MX7D_PAD_ENET1_RX_CLK__SAI1_TX_BCLK 0x1f
> @@ -348,6 +377,17 @@
> >;
> };
>
> + pinctrl_usdhc2: usdhc2grp {
> + fsl,pins = <
> + MX7D_PAD_SD2_CMD__SD2_CMD 0x59
> + MX7D_PAD_SD2_CLK__SD2_CLK 0x19
> + MX7D_PAD_SD2_DATA0__SD2_DATA0 0x59
> + MX7D_PAD_SD2_DATA1__SD2_DATA1 0x59
> + MX7D_PAD_SD2_DATA2__SD2_DATA2 0x59
> + MX7D_PAD_SD2_DATA3__SD2_DATA3 0x59
> + >;
> + };
> +
> pinctrl_usdhc3: usdhc3grp {
> fsl,pins = <
> MX7D_PAD_SD3_CMD__SD3_CMD 0x59
> --
> 2.7.4
>
>
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