Hi,
I am using mainline kernel 5.6 on a BPI M2 zero and I compiled the kernel
with the gpio-poweroff driver. Did somebody already try to use the
gpio-poweroff driver ? On my side nothing seems to work.
I tried to implement this on PA17.
Here are my modifications on the device tree :
/dts-v1/;
/
{
...
pinctrl@1c20800 {
reg = <0x1c20800 0x400>;
interrupts = <0x0 0xb 0x4 0x0 0x11 0x4>;
clocks = <0x3 0x36 0x10 0x11 0x0>;
clock-names = "apb", "hosc", "losc";
gpio-controller; #gpio-cells = <0x3>;
interrupt-controller;
#interrupt-cells = <0x3>;
compatible = "allwinner,sun8i-h3-pinctrl";
phandle = <0xc>;
...
* poweroff_pins@0 { /* This line has been added */ *
* pins = "PA17"; /* This line has been added */ *
* function = "gpio_out"; /* This line has been added */ *
* }; /* This line has been added */ *
};
...
* gpio_power_off { /* This line has been added */ *
* compatible = "gpio-poweroff"; /* This line has been added */ *
* gpios = <0xc 0x0 0x11 0x1>; /* This line has been added */ *
* ; /* This line has been added */*
};
But nothing happens when I shut down the device .
Any thoughts ?
Thanks
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