Excuse me, have you tested keystroke wakeup on the 5.1 kernel again?I am currently using the gpio_keys.c driver which won't wake up the device, but it will work on the 4.1 kernel.Specific kernel version:Linux imx8mmevk 5.10.52-1.0,The following is the configuration of my device tree
gpio_keys {
compatible = "gpio-keys";
#address-cells = <1>;
#size-cells = <0>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_gpiokey>;
key-1 { //power-button
debounce_interval = <50>;
wakeup-source;
linux,code = <116>;
label = "POWER";
gpios = <&gpio2 15 GPIO_ACTIVE_LOW>;
};
key-2 { //KEY_VOLUMEUP
debounce_interval = <50>;
wakeup-source;
linux,code = <115>;
label = "VOLUMEUP";
gpios = <&gpio2 20 GPIO_ACTIVE_LOW>;
};
key-3 { //KEY_VOLUMEDOWN
debounce_interval = <50>;
wakeup-source;
linux,code = <114>;
label = "VOLUMEDOWN";
gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;
};
key-4 { //KEY_MICMUTE
debounce_interval = <50>;
wakeup-source;
linux,code = <248>;
label = "MICMUTE";
gpios = <&gpio2 19 GPIO_ACTIVE_LOW>;
};
};
