diff options
| author | Oleksandr Suvorov <oleksandr.suvorov@toradex.com> | 2022-05-16 16:47:16 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-08-17 16:14:08 +0300 |
| commit | 10e4b798330cf3472f0e9951b4f678fc9e828d7e (patch) | |
| tree | 2e1a7dbd87fd4ca5d05f6c2182dde0f0754e409f /arch/arm/boot/dts | |
| parent | b31d4563b8bf6331f96c57987f9980e47d49a3fc (diff) | |
| download | linux-10e4b798330cf3472f0e9951b4f678fc9e828d7e.tar.xz | |
ARM: dts: imx7-colibri: improve wake-up with gpio key
[ Upstream commit fd5d2974652c96935d94301af6eaf6b3585ab330 ]
The pin GPIO1_IO01 externally pulls down, it is required to sequentially
connect this pin (signal WAKE_MICO#) to +3v3 and then disconnect it to
trigger a wakeup interrupt.
Adding the flag GPIO_PULL_DOWN allows the system to be woken up just
connecting the pin GPIO1_IO01 to +3v3.
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/arm/boot/dts')
| -rw-r--r-- | arch/arm/boot/dts/imx7-colibri-aster.dtsi | 2 | ||||
| -rw-r--r-- | arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/imx7-colibri-aster.dtsi b/arch/arm/boot/dts/imx7-colibri-aster.dtsi index 950b4e5f6cf4..69ee85084ad4 100644 --- a/arch/arm/boot/dts/imx7-colibri-aster.dtsi +++ b/arch/arm/boot/dts/imx7-colibri-aster.dtsi @@ -16,7 +16,7 @@ power { label = "Wake-Up"; - gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>; + gpios = <&gpio1 1 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>; linux,code = <KEY_WAKEUP>; debounce-interval = <10>; wakeup-source; diff --git a/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi b/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi index 17ad9065646d..d6775e3c64f1 100644 --- a/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi +++ b/arch/arm/boot/dts/imx7-colibri-eval-v3.dtsi @@ -34,7 +34,7 @@ power { label = "Wake-Up"; - gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>; + gpios = <&gpio1 1 (GPIO_ACTIVE_HIGH | GPIO_PULL_DOWN)>; linux,code = <KEY_WAKEUP>; debounce-interval = <10>; wakeup-source; |