Good morning, I hope you all are fine.
I am working on orange pi pc plus with mainline kernel 4.4, I tried to use the on board button but it didn't work in spite of its existence in the device tree (after dumping the already running dtb) and I found that:
pinctrl@01f02c00 {
compatible = "allwinner,sun8i-h3-r-pinctrl";
reg = <0x1f02c00 0x400>;
interrupts = <0x0 0x2d 0x4>;
clocks = <0x2d 0x3 0x1c 0x1d>;
clock-names = "apb", "hosc", "losc";
gpio-controller;
#gpio-cells = <0x3>;
interrupt-controller;
#interrupt-cells = <0x3>;
linux,phandle = <0x39>;
phandle = <0x39>;
...
...
key_pins@0 {
pins = "PL3";
function = "gpio_in";
linux,phandle = <0x3d>;
phandle = <0x3d>;
};
and also I found that :
r_gpio_keys {
compatible = "gpio-keys";
pinctrl-names = "default";
pinctrl-0 = <0x3d>;
sw4 {
label = "sw4";
linux,code = <0x100>;
gpios = <0x39 0x0 0x3 0x1>;
};
};
I made sure that the button connected to PL3, and in fact I don't know if that configuration in the device tree are right or wrong.
I installed acpid and started the service and ran "acpi_listen" and nothing printed during pressing the button, I also checked the allwinner h3 datasheet here to check if the above configuration is true or not but I can't map the info on the datasheet with the ones here. Please I need help on that or any clue will be useful.
Thanks for advice .
