[PATCH v2] arm64: dts: meson-gxbb: nanopi-k2: Enable Bluetooth

[Chen-Yu Tsai <wens@kernel.org>]

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>
---
Changes since v1:
  - added uart-has-rtscts property
  - added alias for uart_A

Hi Neil, Martin,

I dropped your review-bys since I added the UART alias and I'm not sure
what the policy for those are.

ChenYu
---
 .../boot/dts/amlogic/meson-gxbb-nanopi-k2.dts      | 14 +++++++++++++-
 1 file changed, 13 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..f017a263784f 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
@@ -15,6 +15,7 @@ / {
 
 	aliases {
 		serial0 = &uart_AO;
+		serial1 = &uart_A;
 		ethernet0 = &ethmac;
 	};
 
@@ -385,9 +386,20 @@ &uart_AO {
 
 /* Bluetooth on AP6212 */
 &uart_A {
-	status = "disabled";
+	status = "okay";
 	pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
 	pinctrl-names = "default";
+	uart-has-rtscts;
+
+	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