@Coiby Xu (coiby)

Apparently there was a similar problem with the 4.19 kernel, but with
the Intel CPU, which was then solved with the following patch.

https://gitlab.manjaro.org/packages/core/linux419/-/blob/master/ELAN_touchpad_i2c_hid_pinctrl.patch

Now the two lines are included (for example) in kernel 5.8 in
/drivers/pincrtl/pincrtl-intel.c:

     /* Clear interrupt status first to avoid unexpected interrupt */
     writel(BIT(gpp_offset), is);

Maybe this information will help you.




** Attachment added: "pinctrl-intel.c"
   
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1887190/+attachment/5418857/+files/pinctrl-intel.c

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https://bugs.launchpad.net/bugs/1887190

Title:
  MSFT Touchpad not working on Lenovo Legion-5 15ARH05

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