ARM: dts: stm32: Enable Bluetooth on AV96

The WiFi/Bluetooth chip is attached to USART2 on AV96 as well, describe
it in DT to make it available. Remove BT LED and turn it into a shutdown
GPIO, because the GPIO line controls the BT_REG_ON signal. The LED is just
an indicator connected to the same line, but not the primary function.

Reviewed-by: Manivannan Sadhasivam <[email protected]>
Signed-off-by: Marek Vasut <[email protected]>
Cc: Alexandre Torgue <[email protected]>
Cc: Manivannan Sadhasivam <[email protected]>
Cc: Maxime Coquelin <[email protected]>
Cc: Patrice Chotard <[email protected]>
Cc: Patrick Delaunay <[email protected]>
Cc: [email protected]
To: [email protected]
Signed-off-by: Alexandre Torgue <[email protected]>

1 files changed, 16 insertions, 7 deletions

diff --git a/arch/arm/boot/dts/stm32mp157a-avenger96.dts b/arch/arm/boot/dts/stm32mp157a-avenger96.dts
index 310329a456ed..ebf34ae15185 100644
--- a/arch/arm/boot/dts/stm32mp157a-avenger96.dts
+++ b/arch/arm/boot/dts/stm32mp157a-avenger96.dts
@@ -21,6 +21,7 @@
 		mmc0 = &sdmmc1;
 		serial0 = &uart4;
 		serial1 = &uart7;
+		serial2 = &usart2;
 		spi0 = &qspi;
 	};
 
@@ -63,13 +64,6 @@
 			default-state = "off";
 			panic-indicator;
 		};
-
-		led5 {
-			label = "blue:bt";
-			gpios = <&gpioz 6 GPIO_ACTIVE_HIGH>;
-			linux,default-trigger = "bluetooth-power";
-			default-state = "off";
-		};
 	};
 
 	sd_switch: regulator-sd_switch {
@@ -419,3 +413,18 @@
 	pinctrl-0 = <&uart7_pins_a>;
 	status = "okay";
 };
+
+/* Bluetooth */
+&usart2 {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&usart2_pins_a>;
+	pinctrl-1 = <&usart2_sleep_pins_a>;
+	st,hw-flow-ctrl;
+	status = "okay";
+
+	bluetooth {
+		compatible = "brcm,bcm43438-bt";
+		max-speed = <3000000>;
+		shutdown-gpios = <&gpioz 6 GPIO_ACTIVE_HIGH>;
+	};
+};