arm64: dts: qcom: qrb5165-rb5: add the Bluetooth node

Add the Bluetooth node for RB5 as well as its dependencies in the form
of the uart6 -> serial1 alias and the pin function for the Bluetooth
enable GPIO.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20231207090706.19134-1-brgl@bgdev.plSigned-off-by: Bjorn Andersson <andersson@kernel.org>

arch/arm64/boot/dts/qcom/qrb5165-rb5.dts

@@ -23,6 +23,7 @@ / {
 
 	aliases {
 		serial0 = &uart12;
+		serial1 = &uart6;
 		sdhc2 = &sdhc_2;
 	};
 
@@ -1263,6 +1264,14 @@ &tlmm {
 		"HST_WLAN_UART_TX",
 		"HST_WLAN_UART_RX";
 
+	bt_en_state: bt-default-state {
+		pins = "gpio21";
+		function = "gpio";
+		drive-strength = <16>;
+		output-low;
+		bias-pull-up;
+	};
+
 	lt9611_irq_pin: lt9611-irq-state {
 		pins = "gpio63";
 		function = "gpio";
@@ -1296,6 +1305,26 @@ sdc2_card_det_n: sd-card-det-n-state {
 	};
 };
 
+&uart6 {
+	status = "okay";
+
+	bluetooth {
+		compatible = "qcom,qca6390-bt";
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&bt_en_state>;
+
+		enable-gpios = <&tlmm 21 GPIO_ACTIVE_HIGH>;
+
+		vddio-supply = <&vreg_s4a_1p8>;
+		vddpmu-supply = <&vreg_s2f_0p95>;
+		vddaon-supply = <&vreg_s6a_0p95>;
+		vddrfa0p9-supply = <&vreg_s2f_0p95>;
+		vddrfa1p3-supply = <&vreg_s8c_1p3>;
+		vddrfa1p9-supply = <&vreg_s5a_1p9>;
+	};
+};
+
 &uart12 {
 	status = "okay";
 };