*** This bug is a duplicate of bug 1878279 ***
    https://bugs.launchpad.net/bugs/1878279

Some information that seems revelant to me :
On the gentoo forum subject : before the user enabled 
CONFIG_PINCTRL_SUNRISEPOINT, the device seemed to be already detected, as it 
was visible in /proc/bus/input/devices as "MSFT0001:00 06CB:7F27 Touchpad"

He then did enabled the CONFIG in the kernel config, and then when
pressing FN-F6, the touchpad did get detected and enabled.

In my case, with kernel 5.7.2, I don't have my touchpad listed in
/proc/bus/input/devices.

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https://bugs.launchpad.net/bugs/1880172

Title:
  Touchpad is not detected on  Lenovo IdeaPad 3 14IIL05  Core i3-1005G1
  (81WD004MGE)

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