[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 #5 from Vladimir Kondratyev <wulf at freebsd.org> ---
Try to set SDA_RX_HOLD to 1. That is what Linux does.
reg_write(sc, IG4_REG_SDA_HOLD, 28); -> reg_write(sc, IG4_REG_SDA_HOLD, 0x10000
+ 28);

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