[SRU] [Unstable/OEM-5.10] [PATCH 0/1] Fix unusable touchpad on TGL laptops

[Timo Aaltonen]

On 9.12.2020 17.15, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1907466
> 
> [Impact]
> Touchpad doesn't work after boot.
> kernel: i2c_designware i2c_designware.1: controller timed out
> 
> [Fix]
> "Actually disable Tx and Rx buffers on GPIO request".
> 
> [Test]
> Bootup a TGL laptop. Touchpad doesn't work.
> With the fix applied, touchpad always work after boot.
> 
> [Where problems could occur]
> Intel pinctrl can change between GPIO mode or IRQ mode, both effect many
> other devices. So problems can happen all across the board.
> 
> However, the regression happens in v5.9, so no user really received the
> change.
> 
> Andy Shevchenko (1):
>    pinctrl: intel: Actually disable Tx and Rx buffers on GPIO request
> 
>   drivers/pinctrl/intel/pinctrl-intel.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)

This is already in v5.10 final.



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