Commit dfd948b9 authored by Marek Vasut's avatar Marek Vasut Committed by Shawn Guo
Browse files

arm64: dts: imx8mp: Switch WiFI enable signal to mmc-pwrseq-simple on i.MX8MP DHCOM SoM 



The reset-gpio is connected to WL_REG_EN signal of the WiFi MAC, the
mmc-pwrseq-simple driver is better suited to operate this signal as
it is tied to the slot instead of the MAC, and it can enable the MAC
before the brcmfmac driver binds to it. Make use of the MMC power
sequencer.

Signed-off-by: default avatarMarek Vasut <marex@denx.de>
Signed-off-by: default avatarShawn Guo <shawnguo@kernel.org>
parent b7d6532c

arch/arm64/boot/dts/freescale/imx8mp-dhcom-som.dtsi

+6 −1
Original line number Diff line number Diff line
@@ -57,6 +57,11 @@ reg_vdd_3p3v_awo: regulator-vdd-3p3v-awo { /* VDD_3V3_AWO */ 
		regulator-max-microvolt = <3300000>;

		regulator-name = "VDD_3P3V_AWO";

	};



	wlan_pwrseq: wifi-pwrseq {

		compatible = "mmc-pwrseq-simple";

		reset-gpios = <&gpio1 13 GPIO_ACTIVE_LOW>;

	};

};



&A53_0 {
@@ -543,6 +548,7 @@ &usdhc1 { 
	pinctrl-0 = <&pinctrl_usdhc1>;

	pinctrl-1 = <&pinctrl_usdhc1_100mhz>;

	pinctrl-2 = <&pinctrl_usdhc1_200mhz>;

	mmc-pwrseq = <&wlan_pwrseq>;

	vmmc-supply = <&buck4>;

	bus-width = <4>;

	non-removable;
@@ -561,7 +567,6 @@ brcmf: bcrmf@1 { /* muRata 2AE */ 
		 * connected to the SoC, but can be connected on to

		 * SoC pin on the carrier board.

		 */

		reset-gpios = <&gpio1 13 GPIO_ACTIVE_LOW>;

	};

};