ARM: dts: exynos: Enable Bluetooth support for Trats board

Add a node for the BCM4334 Bluetooth chip on the serial bus #0 on
the Exynos4210-based Trats boards.

Signed-off-by: Marek Szyprowski <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Krzysztof Kozlowski <[e-mail]>

arch/arm/boot/dts/exynos4210-trats.dts

···
 	};
 };
 
+&pinctrl_1 {
+	bt_shutdown: bt-shutdown {
+		samsung,pins = "gpl1-0";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+	};
+
+	bt_host_wakeup: bt-host-wakeup {
+		samsung,pins = "gpx2-6";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_INPUT>;
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+	};
+
+	bt_device_wakeup: bt-device-wakeup {
+		samsung,pins = "gpx3-1";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_OUTPUT>;
+		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+	};
+};
+
 &rtc {
 	status = "okay";
 	clocks = <&clock CLK_RTC>, <&pmic_ap_clk>;
···
 
 &serial_0 {
 	status = "okay";
+	pinctrl-0 = <&uart0_data &uart0_fctl>;
+	pinctrl-names = "default";
+
+	bluetooth {
+		compatible = "brcm,bcm4330-bt";
+		pinctrl-0 = <&bt_shutdown &bt_device_wakeup &bt_host_wakeup>;
+		pinctrl-names = "default";
+		shutdown-gpios = <&gpl1 0 GPIO_ACTIVE_HIGH>;
+		device-wakeup-gpios = <&gpx3 1 GPIO_ACTIVE_HIGH>;
+		host-wakeup-gpios = <&gpx2 6 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &serial_1 {