ARM: dts: rockchip: Add BT_EN to the power sequence for veyron

Add GPIO D5 (BT_ENABLE_L) as reset-GPIO to the power sequence for the
Bluetooth/WiFi module. On devices with a Broadcom module the signal
needs to be asserted to use Bluetooth.

Note that BT_ENABLE_L is a misnomer in the schematics, the signal
actually is active-high.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm/boot/dts/rk3288-veyron.dtsi b/arch/arm/boot/dts/rk3288-veyron.dtsi
index fa38eb967f12f455490aa487f5d2d980f1fc8555..efa7b425c9ed430eda70d93ad227963a8ba66874 100644 (file)
--- a/arch/arm/boot/dts/rk3288-veyron.dtsi
+++ b/arch/arm/boot/dts/rk3288-veyron.dtsi
@@ -62,12 +62,19 @@
                pinctrl-0 = <&bt_enable_l>, <&wifi_enable_h>;
 
                /*
-                * On the module itself this is one of these (depending
-                * on the actual card populated):
+                * Depending on the actual card populated GPIO4 D4 and D5
+                * correspond to one of these signals on the module:
+                *
+                * D4:
                 * - SDIO_RESET_L_WL_REG_ON
                 * - PDN (power down when low)
+                *
+                * D5:
+                * - BT_I2S_WS_BT_RFDISABLE_L
+                * - No connect
                 */
-               reset-gpios = <&gpio4 RK_PD4 GPIO_ACTIVE_LOW>;
+               reset-gpios = <&gpio4 RK_PD4 GPIO_ACTIVE_LOW>,
+                             <&gpio4 RK_PD5 GPIO_ACTIVE_LOW>;
        };
 
        vcc_5v: vcc-5v {