linux-kernel - [PATCH v4] arm64: dts: rockchip: fix quartz64-a bluetooth configuration

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Date:   Mon, 26 Sep 2022 14:53:48 +0200
From:   Lev Popov <leo@...am.net>
To:     Lev Popov <leo@...am.net>
Cc:     Dan Johansen <strit@...jaro.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Peter Geis <pgwipeout@...il.com>,
        Nicolas Frattaroli <frattaroli.nicolas@...il.com>,
        Michael Riesch <michael.riesch@...fvision.net>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v4] arm64: dts: rockchip: fix quartz64-a bluetooth configuration

For "Quartz64 Model A" add missing RTS line to the UART interface used by
bluetooth and swap bluetooth host-wakeup and device-wakeup gpio pins to
match the boards physical layout. This changes are necessary to make
bluetooth provided by the wireless module work.

Also set max-speed on the bluetooth device as it's not automatically
detected.

Fixes: b33a22a1e7c4248608e533fc4fa524258b3fae84 (arm64: dts: rockchip: add basic dts for Pine64 Quartz64-A)

Signed-off-by: Lev Popov <leo@...am.net>
---
 arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
index a05460b92415..25a8c781f4e7 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3566-quartz64-a.dts
@@ -740,7 +740,7 @@ &uart0 {
 
 &uart1 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&uart1m0_xfer &uart1m0_ctsn>;
+	pinctrl-0 = <&uart1m0_xfer &uart1m0_ctsn &uart1m0_rtsn>;
 	status = "okay";
 	uart-has-rtscts;
 
@@ -748,13 +748,14 @@ bluetooth {
 		compatible = "brcm,bcm43438-bt";
 		clocks = <&rk817 1>;
 		clock-names = "lpo";
-		device-wakeup-gpios = <&gpio2 RK_PC1 GPIO_ACTIVE_HIGH>;
-		host-wakeup-gpios = <&gpio2 RK_PC0 GPIO_ACTIVE_HIGH>;
+		host-wakeup-gpios = <&gpio2 RK_PC1 GPIO_ACTIVE_HIGH>;
+		device-wakeup-gpios = <&gpio2 RK_PC0 GPIO_ACTIVE_HIGH>;
 		shutdown-gpios = <&gpio2 RK_PB7 GPIO_ACTIVE_HIGH>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&bt_host_wake_l &bt_wake_l &bt_enable_h>;
 		vbat-supply = <&vcc_sys>;
 		vddio-supply = <&vcca1v8_pmu>;
+		max-speed = <3000000>;
 	};
 };
 
-- 
2.37.3