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From:   Chen-Yu Tsai <wens@kernel.org>
To:     Kevin Hilman <khilman@baylibre.com>,
        Neil Armstrong <narmstrong@baylibre.com>,
        Jerome Brunet <jbrunet@baylibre.com>,
        Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc:     Chen-Yu Tsai <wens@csie.org>, devicetree@vger.kernel.org,
        linux-amlogic@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] arm64: dts: meson-gxbb: nanopi-k2: Enable Bluetooth
Date:   Thu, 29 Apr 2021 14:08:30 +0800
Message-Id: <20210429060830.6266-1-wens@kernel.org>
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From: Chen-Yu Tsai <wens@csie.org>

The NanoPi K2 has a AP6212 WiFi+BT combo module. The WiFi portion is
already enabled. The BT part is connected via UART and I2S.

Enable the UART and add a device node describing the Bluetooth portion
of the module.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
index 7273eed5292c..10f48fb1af61 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
@@ -385,9 +385,19 @@ &uart_AO {
 
 /* Bluetooth on AP6212 */
 &uart_A {
-	status = "disabled";
+	status = "okay";
 	pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
 	pinctrl-names = "default";
+
+	bluetooth {
+		compatible = "brcm,bcm43438-bt";
+		clocks = <&wifi_32k>;
+		clock-names = "lpo";
+		vbat-supply = <&vddio_ao3v3>;
+		vddio-supply = <&vddio_ao18>;
+		host-wakeup-gpios = <&gpio GPIOX_21 GPIO_ACTIVE_HIGH>;
+		shutdown-gpios = <&gpio GPIOX_20 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 /* 40-pin CON1 */
-- 
2.31.1