linux-kernel - [PATCH v7 1/4] arm64: dts: apq8096-db820c: Enable wlan and bt en pins

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Date:   Thu, 29 Mar 2018 21:15:21 +0200
From:   Thierry Escande <thierry.escande@...aro.org>
To:     Rob Herring <robh+dt@...nel.org>,
        Andy Gross <andy.gross@...aro.org>,
        Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        David Brown <david.brown@...aro.org>,
        Mark Rutland <mark.rutland@....com>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Loic Poulain <loic.poulain@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        linux-bluetooth@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v7 1/4] arm64: dts: apq8096-db820c: Enable wlan and bt en pins

From: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>

This patch enables regulators and gpios for the Qualcomm QCA6174 BT/WLAN
combo controller.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Signed-off-by: Thierry Escande <thierry.escande@...aro.org>
---

v7:
- New patch in this patchset

 .../boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi    | 22 +++++++++++++++
 arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi       | 31 ++++++++++++++++++++++
 2 files changed, 53 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
index 59b29ddfb6e9..5d50f45c4df7 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
@@ -14,6 +14,28 @@
 		};
 	};
 
+	bt_en_gpios: bt_en_gpios {
+		pinconf {
+			pins = "gpio19";
+			function = PMIC_GPIO_FUNC_NORMAL;
+			output-low;
+			power-source = <PM8994_GPIO_S4>; // 1.8V
+			qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
+			bias-pull-down;
+		};
+	};
+
+	wlan_en_gpios: wlan_en_gpios {
+		pinconf {
+			pins = "gpio8";
+			function = PMIC_GPIO_FUNC_NORMAL;
+			output-low;
+			power-source = <PM8994_GPIO_S4>; // 1.8V
+			qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
+			bias-pull-down;
+		};
+	};
+
 	volume_up_gpio: pm8996_gpio2 {
 		pinconf {
 			pins = "gpio2";
diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
index 1c8f1b86472d..ec5e6eee0a7a 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c.dtsi
@@ -139,9 +139,40 @@
 			pinctrl-0 = <&usb2_vbus_det_gpio>;
 		};
 
+		bt_en: bt-en-1-8v {
+			pinctrl-names = "default";
+			pinctrl-0 = <&bt_en_gpios>;
+			compatible = "regulator-fixed";
+			regulator-name = "bt-en-regulator";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+
+			/* WLAN card specific delay */
+			startup-delay-us = <70000>;
+			enable-active-high;
+		};
+
+		wlan_en: wlan-en-1-8v {
+			pinctrl-names = "default";
+			pinctrl-0 = <&wlan_en_gpios>;
+			compatible = "regulator-fixed";
+			regulator-name = "wlan-en-regulator";
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <1800000>;
+
+			gpio = <&pm8994_gpios 8 0>;
+
+			/* WLAN card specific delay */
+			startup-delay-us = <70000>;
+			enable-active-high;
+		};
+
 		agnoc@0 {
 			qcom,pcie@...000 {
+				status = "okay";
 				perst-gpio = <&msmgpio 35 GPIO_ACTIVE_LOW>;
+				vddpe-supply = <&wlan_en>;
+				vddpe1-supply = <&bt_en>;
 			};
 
 			qcom,pcie@...000 {
-- 
2.14.1