linux-kernel - [PATCH v1 1/1] arm64: dts: qcom: qcs8300-ride: enable BT on qcs8300-ride

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Message-Id: <20250211104421.1172892-2-quic_chejiang@quicinc.com>
Date: Tue, 11 Feb 2025 18:44:21 +0800
From: Cheng Jiang <quic_chejiang@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, quic_chejiang@...cinc.com,
        quic_jiaymao@...cinc.com, quic_shuaz@...cinc.com,
        quic_zijuhu@...cinc.com, quic_mohamull@...cinc.com
Subject: [PATCH v1 1/1] arm64: dts: qcom: qcs8300-ride: enable BT on qcs8300-ride

Enable BT on qcs8300-ride by adding a node for the BT module. Since the
platform uses the QCA6698 Bluetooth chip. While the QCA6698 shares th
same IP core as the WCN6855, it has different RF components and RAM sizes,
requiring new firmware files. Use the firmware-name property to specify
the NVM and rampatch firmware to load.

Signed-off-by: Cheng Jiang <quic_chejiang@...cinc.com>
---
 arch/arm64/boot/dts/qcom/qcs8300-ride.dts | 24 +++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
index a6991e8e2df6..93458773b72d 100644
--- a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
+++ b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
@@ -17,6 +17,7 @@ / {
 
 	aliases {
 		serial0 = &uart7;
+		serial1 = &uart2;
 	};
 
 	chosen {
@@ -451,6 +452,13 @@ &serdes0 {
 };
 
 &tlmm {
+	bt_en_state: bt-en-state {
+		pins = "gpio55";
+		function = "normal";
+		output-low;
+		bias-pull-down;
+	};
+
 	ethernet0_default: ethernet0-default-state {
 		ethernet0_mdc: ethernet0-mdc-pins {
 			pins = "gpio5";
@@ -544,6 +552,22 @@ wlan_en_state: wlan-en-state {
 	};
 };
 
+&uart2 {
+	status = "okay";
+	bluetooth: bluetooth {
+		compatible = "qcom,wcn6855-bt";
+		firmware-name = "QCA6698/hpnv21", "QCA6698/hpbtfw21.tlv";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&bt_en_state>;
+		enable-gpios = <&tlmm 55 GPIO_ACTIVE_HIGH>; /* BT_EN */
+
+		vddio-supply       = <&vreg_conn_pa>;         /* bt-vdd-ctrl1-supply */
+		vddbtcxmx-supply   = <&vreg_conn_1p8>;        /* bt-vdd-ctrl2-supply */
+		max-speed = <3200000>;
+	};
+};
+
 &uart7 {
 	status = "okay";
 };
-- 
2.34.1