diff options
| author | Douglas Anderson <dianders@chromium.org> | 2019-06-11 01:51:44 +0200 |
|---|---|---|
| committer | Heiko Stuebner <heiko@sntech.de> | 2019-06-14 11:37:15 +0200 |
| commit | f497ab6b4bb813aca439b7f3a72a060b58b147c4 (patch) | |
| tree | fdd58aa8b07f8fc6e0f224ab612b9b4ea10b3ff1 /arch/arm | |
| parent | ARM: dts: rockchip: Split GPIO keys for veyron into multiple devices (diff) | |
| download | linux-f497ab6b4bb813aca439b7f3a72a060b58b147c4.tar.xz linux-f497ab6b4bb813aca439b7f3a72a060b58b147c4.zip | |
ARM: dts: rockchip: Configure BT_HOST_WAKE as wake-up signal on veyron
This enables wake up on Bluetooth activity when the device is
suspended. The BT_HOST_WAKE signal is only connected on devices
with BT module that are connected through UART.
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/boot/dts/rk3288-veyron.dtsi | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/rk3288-veyron.dtsi b/arch/arm/boot/dts/rk3288-veyron.dtsi index 3257ca90f0e8..e2635ad574e7 100644 --- a/arch/arm/boot/dts/rk3288-veyron.dtsi +++ b/arch/arm/boot/dts/rk3288-veyron.dtsi @@ -23,6 +23,31 @@ reg = <0x0 0x0 0x0 0x80000000>; }; + bt_activity: bt-activity { + compatible = "gpio-keys"; + pinctrl-names = "default"; + pinctrl-0 = <&bt_host_wake>; + + /* + * HACK: until we have an LPM driver, we'll use an + * ugly GPIO key to allow Bluetooth to wake from S3. + * This is expected to only be used by BT modules that + * use UART for comms. For BT modules that talk over + * SDIO we should use a wakeup mechanism related to SDIO. + * + * Use KEY_RESERVED here since that will work as a wakeup but + * doesn't get reported to higher levels (so doesn't confuse + * Chrome). + */ + bt-wake { + label = "BT Wakeup"; + gpios = <&gpio4 RK_PD7 GPIO_ACTIVE_HIGH>; + linux,code = <KEY_RESERVED>; + wakeup-source; + }; + + }; + power_button: power-button { compatible = "gpio-keys"; pinctrl-names = "default"; @@ -549,6 +574,10 @@ rockchip,pins = <4 RK_PD5 RK_FUNC_GPIO &pcfg_pull_none>; }; + bt_host_wake: bt-host-wake { + rockchip,pins = <4 RK_PD7 RK_FUNC_GPIO &pcfg_pull_down>; + }; + /* * We run sdio0 at max speed; bump up drive strength. * We also have external pulls, so disable the internal ones. |