[Bug 240339] [ig4] I2C2 (touchpad bus) broken on the Google Pixelbook (Sunrise Point PCH)

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=240339

--- Comment #17 from Vladimir Kondratyev <wulf at freebsd.org> ---
(In reply to Greg V from comment #16)
> Interesting how the other buses are fine with this, only the touchpad one was broken.
That is related to buses and gates capacitance and resistance. Here you can
find what happens if SDA HOLD is set too low: 
https://www.cypress.com/file/364871/download

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