linux-kernel - [PATCH 1/1] arm64: allwinner: a64: enable Bluetooth on Pinebook

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Message-Id: <20221007234553.12328-2-bage@debian.org>
Date:   Sat,  8 Oct 2022 01:45:53 +0200
From:   Bastian Germann <bage@...ian.org>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     Vasily Khoruzhick <anarsoul@...il.com>,
        Bastian Germann <bage@...ian.org>
Subject: [PATCH 1/1] arm64: allwinner: a64: enable Bluetooth on Pinebook

From: Vasily Khoruzhick <anarsoul@...il.com>

Pinebook has an RTL8723CS WiFi + BT chip. BT is connected to UART1
and uses PL5 as device wake GPIO and PL6 as host wake GPIO.
The I2C controlling signals are connected to R_I2C bus.

Enable it in the device tree.

Signed-off-by: Vasily Khoruzhick <anarsoul@...il.com>
Signed-off-by: Bastian Germann <bage@...ian.org>
---
 .../boot/dts/allwinner/sun50i-a64-pinebook.dts      | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
index 620cb3ef5f6c..19ba87c411ed 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinebook.dts
@@ -406,6 +406,19 @@ &uart0 {
 	status = "okay";
 };
 
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins>, <&uart1_rts_cts_pins>;
+	uart-has-rtscts;
+	status = "okay";
+
+	bluetooth {
+		compatible = "realtek,rtl8723cs-bt";
+		device-wake-gpios = <&r_pio 0 5 GPIO_ACTIVE_LOW>; /* PL5 */
+		host-wake-gpios = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
+	};
+};
+
 &usb_otg {
 	dr_mode = "host";
 };
-- 
2.37.2