ARM: dts: exynos: Enable Bluetooth support for Midas board family

Add a node for the BCM4334 Bluetooth chip on the serial bus #0 on
the Exynos4412-based Midas board family.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20201027142330.5121-3-m.szyprowski@samsung.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

diff --git a/arch/arm/boot/dts/exynos4412-midas.dtsi b/arch/arm/boot/dts/exynos4412-midas.dtsi
index 7e7c243..96287c6 100644 (file)
--- a/arch/arm/boot/dts/exynos4412-midas.dtsi
+++ b/arch/arm/boot/dts/exynos4412-midas.dtsi
@@ -1109,6 +1109,21 @@
                samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
        };
 
+       bt_shutdown: bt-shutdown {
+               samsung,pins = "gpl0-6";
+               samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+       };
+
+       bt_host_wakeup: bt-host-wakeup {
+               samsung,pins = "gpx2-6";
+               samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+       };
+
+       bt_device_wakeup: bt-device-wakeup {
+               samsung,pins = "gpx3-1";
+               samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
+       };
+
        max77686_irq: max77686-irq {
                samsung,pins = "gpx0-7";
                samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
@@ -1386,7 +1401,20 @@
 };
 
 &serial_0 {
+       pinctrl-0 = <&uart0_data &uart0_fctl>;
+       pinctrl-names = "default";
        status = "okay";
+
+       bluetooth {
+               compatible = "brcm,bcm4330-bt";
+               pinctrl-0 = <&bt_shutdown &bt_device_wakeup &bt_host_wakeup>;
+               pinctrl-names = "default";
+               max-speed = <3000000>;
+               shutdown-gpios = <&gpl0 6 GPIO_ACTIVE_HIGH>;
+               device-wakeup-gpios = <&gpx3 1 GPIO_ACTIVE_HIGH>;
+               host-wakeup-gpios = <&gpx2 6 GPIO_ACTIVE_HIGH>;
+               clocks = <&max77686 MAX77686_CLK_PMIC>;
+       };
 };
 
 &serial_1 {