linux-kernel - [PATCH 6/6] arm64: dts: imx8mp-venice-gw74xx: add WiFi/BT module support

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Message-Id: <20220812173526.15537-6-tharvey@gateworks.com>
Date:   Fri, 12 Aug 2022 10:35:26 -0700
From:   Tim Harvey <tharvey@...eworks.com>
To:     Shawn Guo <shawnguo@...nel.org>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     Tim Harvey <tharvey@...eworks.com>
Subject: [PATCH 6/6] arm64: dts: imx8mp-venice-gw74xx: add WiFi/BT module support

The GW74xx supports an on-board Laird Connectivity Sterling LWB5+ module
which uses a Cypress CYW4373W chip to provide 1x1 802.11 a/b/g/n/ac +
Bluetooth 5.2.

Add the proper device-tree nodes for it.

Signed-off-by: Tim Harvey <tharvey@...eworks.com>
---
 .../dts/freescale/imx8mp-venice-gw74xx.dts    | 38 +++++++++++++++++--
 1 file changed, 35 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts
index bfc480aaf54d..47866d4e5444 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-venice-gw74xx.dts
@@ -135,10 +135,10 @@ reg_wifi_en: regulator-wifi-en {
 		compatible = "regulator-fixed";
 		regulator-name = "wl";
 		gpio = <&gpio3 9 GPIO_ACTIVE_HIGH>;
-		startup-delay-us = <100>;
+		startup-delay-us = <70000>;
 		enable-active-high;
-		regulator-min-microvolt = <1800000>;
-		regulator-max-microvolt = <1800000>;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
 	};
 };
 
@@ -577,6 +577,21 @@ &uart2 {
 	status = "okay";
 };
 
+/* bluetooth HCI */
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart3>, <&pinctrl_uart3_gpio>;
+	cts-gpios = <&gpio3 21 GPIO_ACTIVE_LOW>;
+	rts-gpios = <&gpio3 22 GPIO_ACTIVE_LOW>;
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth {
+		compatible = "brcm,bcm4330-bt";
+		shutdown-gpios = <&gpio3 8 GPIO_ACTIVE_HIGH>;
+	};
+};
+
 &uart4 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart4>;
@@ -617,6 +632,23 @@ &usb_dwc3_1 {
 	status = "okay";
 };
 
+/* SDIO WiFi */
+&usdhc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc1>;
+	bus-width = <4>;
+	non-removable;
+	vmmc-supply = <&reg_wifi_en>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	wifi@0 {
+		compatible = "cypress,cyw4373-fmac";
+		reg = <0>;
+	};
+};
+
 /* eMMC */
 &usdhc3 {
 	assigned-clocks = <&clk IMX8MP_CLK_USDHC3>;
-- 
2.25.1