linux-kernel - [PATCH v1 3/6] arm64: dts: imx8mq-librem5: wire up the wifi regulator

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Message-Id: <20210913135706.309685-4-martin.kepplinger@puri.sm>
Date:   Mon, 13 Sep 2021 15:57:03 +0200
From:   Martin Kepplinger <martin.kepplinger@...i.sm>
To:     robh@...nel.org, shawnguo@...nel.org, kernel@...gutronix.de,
        festevam@...il.com
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, phone-devel@...r.kernel.org,
        kernel@...i.sm, Guido Günther <agx@...xcpu.org>,
        Martin Kepplinger <martin.kepplinger@...i.sm>
Subject: [PATCH v1 3/6] arm64: dts: imx8mq-librem5: wire up the wifi regulator

From: Guido Günther <agx@...xcpu.org>

Connect the wifi power regulator to the corresponding GPIO.

Signed-off-by: Guido Günther <agx@...xcpu.org>
Signed-off-by: Martin Kepplinger <martin.kepplinger@...i.sm>
---
 arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index ba26c6ee98a0..b5562c8f9a3c 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -138,9 +138,15 @@ reg_vsys_3v4: regulator-vsys-3v4 {
 
 	reg_wifi_3v3: regulator-wifi-3v3 {
 		compatible = "regulator-fixed";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_wifi_pwr>;
 		regulator-name = "3V3_WIFI";
 		regulator-min-microvolt = <3300000>;
 		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio3 10 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+		vin-supply = <&reg_vdd_3v3>;
+		regulator-always-on;
 	};
 
 	sound {
@@ -638,6 +644,13 @@ MX8MQ_IOMUXC_SD2_RESET_B_USDHC2_RESET_B 0xc1
 		>;
 	};
 
+	pinctrl_wifi_pwr: wifipwrgrp {
+		fsl,pins = <
+			/* WIFI3V3_EN */
+			MX8MQ_IOMUXC_NAND_DATA04_GPIO3_IO10	0x83
+		>;
+	};
+
 	pinctrl_wdog: wdoggrp {
 		fsl,pins = <
 			/* nWDOG */
-- 
2.30.2