linux-kernel - [PATCH] ARM: dts: qcom: msm8974-hammerhead: add WiFi support

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Date:   Sun,  4 Nov 2018 16:50:34 -0500
From:   Brian Masney <masneyb@...tation.org>
To:     andy.gross@...aro.org, david.brown@...aro.org, robh+dt@...nel.org,
        mark.rutland@....com
Cc:     linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jonathan Marek <jonathan@...ek.ca>
Subject: [PATCH] ARM: dts: qcom: msm8974-hammerhead: add WiFi support

From: Jonathan Marek <jonathan@...ek.ca>

This patch adds WiFi support to the LG Nexus 5 (hammerhead) phone.

Signed-off-by: Jonathan Marek <jonathan@...ek.ca>
[masneyb@...tation.org: Enabled wlan_regulator_pin and wlan_sleep_clk_pin]
Signed-off-by: Brian Masney <masneyb@...tation.org>
---
 .../qcom-msm8974-lge-nexus5-hammerhead.dts    | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)

diff --git a/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts b/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
index fe2b5524a679..7fad5a48d4a3 100644
--- a/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
+++ b/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
@@ -221,6 +221,20 @@
 			};
 		};
 	};
+
+	vreg_wlan: wlan-regulator {
+		compatible = "regulator-fixed";
+
+		regulator-name = "wl-reg";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&msmgpio 26 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&wlan_regulator_pin>;
+	};
 };
 
 &soc {
@@ -253,6 +267,20 @@
 			};
 		};
 
+		sdhc2_pin_a: sdhc2-pin-active {
+			clk {
+				pins = "sdc2_clk";
+				drive-strength = <6>;
+				bias-disable;
+			};
+
+			cmd-data {
+				pins = "sdc2_cmd", "sdc2_data";
+				drive-strength = <6>;
+				bias-pull-up;
+			};
+		};
+
 		i2c3_pins: i2c3 {
 			mux {
 				pins = "gpio10", "gpio11";
@@ -324,6 +352,32 @@
 		pinctrl-0 = <&sdhc1_pin_a>;
 	};
 
+	sdhci@...a4900 {
+		status = "ok";
+
+		max-frequency = <100000000>;
+		bus-width = <4>;
+		non-removable;
+		vmmc-supply = <&vreg_wlan>;
+		vqmmc-supply = <&pm8941_s3>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&sdhc2_pin_a>;
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		bcrmf@1 {
+			compatible = "brcm,bcm4339-fmac", "brcm,bcm4329-fmac";
+			reg = <1>;
+
+			brcm,drive-strength = <10>;
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&wlan_sleep_clk_pin>;
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 		input-name = "gpio-keys";
@@ -463,6 +517,22 @@
 				output-high;
 				line-name = "otg-gpio";
 			};
+
+			wlan_sleep_clk_pin: wl-sleep-clk {
+				pins = "gpio16";
+				function = "func2";
+
+				output-high;
+				power-source = <PM8941_GPIO_S3>;
+			};
+
+			wlan_regulator_pin: wl-reg-active {
+				pins = "gpio17";
+				function = "normal";
+
+				bias-disable;
+				power-source = <PM8941_GPIO_S3>;
+			};
 		};
 	};
 };
-- 
2.17.2