linux-kernel - [PATCH 3/4] arm64: dts: qcom: Add Bluetooth support on RB5

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Date:   Sun, 20 Dec 2020 19:58:44 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Lee Jones <lee.jones@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 3/4] arm64: dts: qcom: Add Bluetooth support on RB5

From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

Add Bluetooth support on RB5 using the onboard QCA6391 WLAN+BT chipset.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
[DB: added qca639x power domain]
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 97 ++++++++++++++++++++++++
 1 file changed, 97 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index 1be984d89f48..e6bab9960cea 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
@@ -17,6 +17,7 @@ / {
 	compatible = "qcom,qrb5165-rb5", "qcom,sm8250";
 
 	aliases {
+		hsuart0 = &uart6;
 		serial0 = &uart12;
 		sdhc2 = &sdhc_2;
 	};
@@ -118,6 +119,23 @@ vreg_s4a_1p8: vreg-s4a-1p8 {
 		regulator-max-microvolt = <1800000>;
 		regulator-always-on;
 	};
+
+	qca639x: qca639x {
+		compatible = "qcom,qca639x";
+		#power-domain-cells = <0>;
+
+		vddaon-supply = <&vreg_s6a_0p95>;
+		vddpmu-supply = <&vreg_s2f_0p95>;
+		vddrfa1-supply = <&vreg_s2f_0p95>;
+		vddrfa2-supply = <&vreg_s8c_1p3>;
+		vddrfa3-supply = <&vreg_s5a_1p9>;
+		vddpcie1-supply = <&vreg_s8c_1p3>;
+		vddpcie2-supply = <&vreg_s5a_1p9>;
+		vddio-supply = <&vreg_s4a_1p8>;
+		pinctrl-names = "default", "active";
+		pinctrl-0 = <&wlan_default_state &bt_default_state>;
+		pinctrl-1 = <&wlan_active_state &bt_active_state>;
+	};
 };
 
 &apps_rsc {
@@ -131,6 +149,13 @@ pm8009-rpmh-regulators {
 		vdd-l5-l6-supply = <&vreg_bob>;
 		vdd-l7-supply = <&vreg_s4a_1p8>;
 
+		vreg_s2f_0p95: smps2 {
+			regulator-name = "vreg_s2f_0p95";
+			regulator-min-microvolt = <512000>;
+			regulator-max-microvolt = <1100000>;
+			regulator-initial-mode = <RPMH_REGULATOR_MODE_AUTO>;
+		};
+
 		vreg_l1f_1p1: ldo1 {
 			regulator-name = "vreg_l1f_1p1";
 			regulator-min-microvolt = <1104000>;
@@ -513,6 +538,26 @@ &pm8150_rtc {
 	status = "okay";
 };
 
+&qup_uart6_default {
+	ctsrx {
+		pins = "gpio16", "gpio19";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	rts {
+		pins = "gpio17";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	tx {
+		pins = "gpio18";
+		drive-strength = <2>;
+		bias-pull-up;
+	};
+};
+
 &qupv3_id_0 {
 	status = "okay";
 };
@@ -738,6 +783,28 @@ &tlmm {
 		"HST_WLAN_UART_TX",
 		"HST_WLAN_UART_RX";
 
+	bt_default_state: bt-default-state {
+		bt-en {
+			pins = "gpio21";
+			function = "gpio";
+
+			drive-strength = <16>;
+			output-low;
+			bias-pull-up;
+		};
+	};
+
+	bt_active_state: bt-active-state {
+		bt-en {
+			pins = "gpio21";
+			function = "gpio";
+
+			drive-strength = <16>;
+			output-high;
+			bias-pull-up;
+		};
+	};
+
 	pcie0_default_state: pcie0-default {
 		clkreq {
 			pins = "gpio80";
@@ -838,6 +905,36 @@ sdc2_card_det_n: sd-card-det-n {
 		function = "gpio";
 		bias-pull-up;
 	};
+
+	wlan_default_state: wlan-default-state {
+		wlan-en {
+			pins = "gpio20";
+			function = "gpio";
+
+			drive-strength = <16>;
+			output-low;
+			bias-pull-up;
+		};
+	};
+
+	wlan_active_state: wlan-active-state {
+		wlan-en {
+			pins = "gpio20";
+			function = "gpio";
+
+			drive-strength = <16>;
+			output-high;
+			bias-pull-up;
+		};
+	};
+};
+
+&uart6 {
+	status = "okay";
+	bluetooth {
+		compatible = "qcom,qca6390-bt";
+		power-domains = <&qca639x>;
+	};
 };
 
 &uart12 {
-- 
2.29.2