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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>
This commit is contained in:
Matthias Kaehlcke 2019-04-09 16:14:05 -07:00 committed by Heiko Stuebner
parent 2f60eb2f03
commit 280fa34975
1 changed files with 10 additions and 3 deletions
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13
arch/arm/boot/dts/rk3288-veyron.dtsi
View File

@ -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 {