linux-kernel - [PATCH 09/18] arm64: dts: qcom: msm8994-octagon: Add QCA6174 bluetooth

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Date:   Sun, 31 Jan 2021 02:38:40 +0100
From:   Konrad Dybcio <konrad.dybcio@...ainline.org>
To:     phone-devel@...r.kernel.org
Cc:     ~postmarketos/upstreaming@...ts.sr.ht,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Gustave Monce <gustave.monce@...look.com>
Subject: [PATCH 09/18] arm64: dts: qcom: msm8994-octagon: Add QCA6174 bluetooth

From: Gustave Monce <gustave.monce@...look.com>

Configure and enable QCA6174 Bluetooth and required pins.

Signed-off-by: Gustave Monce <gustave.monce@...look.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@...ainline.org>
---
 .../dts/qcom/msm8994-msft-lumia-octagon.dtsi  | 44 +++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi b/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi
index b8d89d64e2f1..78443f5a3881 100644
--- a/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8994-msft-lumia-octagon.dtsi
@@ -45,6 +45,21 @@ chosen {
 		ranges;
 	};
 
+	clocks {
+		compatible = "simple-bus";
+
+		divclk4: divclk4 {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+
+			clock-frequency = <32768>;
+			clock-output-names = "divclk4";
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&divclk4_pin_a>;
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 		input-name = "gpio-keys";
@@ -291,6 +306,35 @@ &blsp1_uart2 {
 
 &blsp2_uart2 {
 	status = "okay";
+
+	qca6174_bt: bluetooth {
+		compatible = "qcom,qca6174-bt";
+
+		enable-gpios = <&pm8994_gpios 19 GPIO_ACTIVE_HIGH>;
+		clocks = <&divclk4>;
+	};
+};
+
+&pm8994_gpios {
+	bt_en_gpios: bt_en_gpios {
+		pinconf {
+			pins = "gpio19";
+			function = PMIC_GPIO_FUNC_NORMAL;
+			output-low;
+			power-source = <PM8994_GPIO_S4>;
+			qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
+			bias-pull-down;
+		};
+	};
+
+	divclk4_pin_a: divclk4 {
+		pinconf {
+			pins = "gpio18";
+			function = PMIC_GPIO_FUNC_FUNC2;
+			power-source = <PM8994_GPIO_S4>;
+			bias-disable;
+		};
+	};
 };
 
 &pmi8994_spmi_regulators {
-- 
2.30.0