linux-kernel - [PATCH 1/3] arm64: dts: rockchip: Add bluetooth support to Khadas Edge2

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Message-Id: <20250424-edge-v1-1-314aad01d9ab@wesion.com>
Date: Thu, 24 Apr 2025 18:14:40 +0800
From: Jacobe Zang <jacobe.zang@...ion.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 nick@...das.com, Jacobe Zang <jacobe.zang@...ion.com>, 
 Muhammed Efe Cetin <efectn@...tonmail.com>
Subject: [PATCH 1/3] arm64: dts: rockchip: Add bluetooth support to Khadas
 Edge2

This commit adds the RTS signal, specifies the compatible Broadcom chip,
its clock source, interrupts, GPIOs for wakeup and shutdown, maximum speed,
pinctrl settings, and power supplies.

Signed-off-by: Muhammed Efe Cetin <efectn@...tonmail.com>
Signed-off-by: Jacobe Zang <jacobe.zang@...ion.com>
---
 arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts b/arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts
index 88a5e822ed17..afa16aacee00 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-khadas-edge2.dts
@@ -697,8 +697,24 @@ &uart2 {
 
 &uart9 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&uart9m2_xfer &uart9m2_ctsn>;
+	pinctrl-0 = <&uart9m2_xfer &uart9m2_ctsn &uart9m2_rtsn>;
 	status = "okay";
+
+	bluetooth {
+		compatible = "brcm,bcm43438-bt";
+		clocks = <&hym8563>;
+		clock-names = "lpo";
+		interrupt-parent = <&gpio0>;
+		interrupts = <RK_PD5 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-names = "host-wakeup";
+		device-wakeup-gpios = <&gpio0 RK_PD3 GPIO_ACTIVE_HIGH>;
+		shutdown-gpios = <&gpio0 RK_PD4 GPIO_ACTIVE_HIGH>;
+		max-speed = <1500000>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&bt_wake_host_irq &bt_wake_pin &bt_reset_pin>;
+		vbat-supply = <&vcc_3v3_s3>;
+		vddio-supply = <&vcc_1v8_s3>;
+	};
 };
 
 &u2phy2 {

-- 
2.43.0