[PATCH V4] arm64: dts: qcom: qcs8300-ride: Enable Bluetooth support

[Wei Deng]

Enable BT on qcs8300-ride by adding a BT device tree node.

Since the platform uses the QCA6698 Bluetooth chip. While
the QCA6698 shares the 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.

Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
Signed-off-by: Wei Deng <wei.deng@xxxxxxxxxxxxxxxx>
---
This patch depends on:
- WLAN
https://lore.kernel.org/all/20260225071459.1600394-1-wei.zhang@xxxxxxxxxxxxxxxx/

Changes in v4:
- Rebase patches
- Add an empty line before the bluetooth subnode (Konrad,Dmitry)
- Link to v3: https://lore.kernel.org/all/20260225091700.286108-1-wei.deng@xxxxxxxxxxxxxxxx/

Changes in v3:
- Rebase patches
- Remove unintended 'output-low' from bt-en-state pinctrl
- Use prerequisite-message-id to replace prerequisite-patch-id (Konrad)
- Link to v2: https://lore.kernel.org/all/20251118140406.1551669-2-wei.deng@xxxxxxxxxxxxxxxx/

Changes for v2
- Update commit message, add firmware name detail
- Reorganize patchset
- Link to v1: https://lore.kernel.org/all/20251113130942.2661069-1-wei.deng@xxxxxxxxxxxxxxxx/
---
 arch/arm64/boot/dts/qcom/qcs8300-ride.dts | 27 +++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
index 2ed1015b3465..01ec10dd4879 100644
--- a/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
+++ b/arch/arm64/boot/dts/qcom/qcs8300-ride.dts
@@ -18,6 +18,7 @@ / {
 	aliases {
 		serial0 = &uart7;
 		mmc0 = &sdhc_1;
+		serial1 = &uart2;
 	};
 
 	chosen {
@@ -108,6 +109,7 @@ wcn6855-pmu {
 		vddpcie1p3-supply = <&vreg_conn_1p35>;
 		vddpcie1p9-supply = <&vreg_conn_1p95>;
 
+		bt-enable-gpios = <&tlmm 55 GPIO_ACTIVE_HIGH>;
 		wlan-enable-gpios = <&tlmm 54 GPIO_ACTIVE_HIGH>;
 
 		regulators {
@@ -560,6 +562,12 @@ &sdhc_1 {
 };
 
 &tlmm {
+	bt_en_state: bt-en-state {
+		pins = "gpio55";
+		function = "gpio";
+		bias-pull-down;
+	};
+
 	pcie0_default_state: pcie0-default-state {
 		wake-pins {
 			pins = "gpio0";
@@ -635,6 +643,25 @@ wlan_en_state: wlan-en-state {
 	};
 };
 
+&uart2 {
+	status = "okay";
+
+	bluetooth: bluetooth {
+		compatible = "qcom,wcn6855-bt";
+		firmware-name = "QCA6698/hpnv21", "QCA6698/hpbtfw21.tlv";
+		max-speed = <3200000>;
+
+		vddrfacmn-supply = <&vreg_pmu_rfa_cmn>;
+		vddaon-supply = <&vreg_pmu_aon_0p59>;
+		vddwlcx-supply = <&vreg_pmu_wlcx_0p8>;
+		vddwlmx-supply = <&vreg_pmu_wlmx_0p85>;
+		vddbtcmx-supply = <&vreg_pmu_btcmx_0p85>;
+		vddrfa0p8-supply = <&vreg_pmu_rfa_0p8>;
+		vddrfa1p2-supply = <&vreg_pmu_rfa_1p2>;
+		vddrfa1p8-supply = <&vreg_pmu_rfa_1p7>;
+	};
+};
+
 &uart7 {
 	status = "okay";
 };

base-commit: 11439c4635edd669ae435eec308f4ab8a0804808
prerequisite-message-id: 20260225071459.1600394-1-wei.zhang@xxxxxxxxxxxxxxxx
-- 
2.25.1