From: Oleksandr Suvorov oleksandr.suvorov@toradex.com
[ 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 --- arch/arm/boot/dts/imx7-colibri-aster.dtsi | 2 +- 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 @@ gpio-keys {
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 @@ gpio-keys {
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;