linux-kernel - [PATCH v2] arm64: dts: qcom: qrb5165-rb5: add the Bluetooth node

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Date:   Thu,  7 Dec 2023 10:07:06 +0100
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Alex Elder <elder@...aro.org>,
        Srini Kandagatla <srinivas.kandagatla@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH v2] arm64: dts: qcom: qrb5165-rb5: add the Bluetooth node

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

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@...aro.org>
---
v1 -> v2:
- squash the three device-tree patches into one
- as we're only using a single pin for the BT enable GPIOs, there's no
  need for a separate named node
- change the naming convention for regulators to follow the bindings

 arch/arm64/boot/dts/qcom/qrb5165-rb5.dts | 29 ++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts b/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
index c8cd40a462a3..dfda57568dc5 100644
--- a/arch/arm64/boot/dts/qcom/qrb5165-rb5.dts
+++ b/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";
 };
-- 
2.40.1