[Linux-kernel-mentees] Any other ways to debug GPIO interrupt controller (pinctrl-amd) for broken touchpads of a new laptop model?

Andy Shevchenko andy.shevchenko at gmail.com
Mon Nov 2 19:06:23 UTC 2020

On Fri, Oct 30, 2020 at 6:54 AM Coiby Xu <coiby.xu at gmail.com> wrote:
> On Tue, Oct 27, 2020 at 06:09:49PM +0200, Andy Shevchenko wrote:
> >On Tue, Oct 27, 2020 at 6:01 PM Hans de Goede <hdegoede at redhat.com> wrote:
> >> On 10/27/20 4:13 PM, Andy Shevchenko wrote:


> >> I see, so then the right thing to do for the bug which we are seeing
> >> on some AMD platforms would be to honor the debounce setting I guess ?
> >>
> >> Can you and/or Mika write a patch(set) for this ?
> >
> >I will look at it, but meanwhile I would postpone until having a
> >Mika's Ack on the action that my understanding and course of actions
> >is correct.

I will soon send a support patch against ACPI GPIO library code.

> If you don't mind, let me write this patch(set) instead:)

I leave to you whatever AMD code. It will suit our both interests :-)

> I feel itchy
> to fix this touchpad issue by myself after spending about a month of
> my internship at Linux Foundation investigating this touchpad issue.
> There are many enthusiastic Linux users waiting to get their touchpads
> fixed and I could prioritize this task since I don't have other
> obligations. I have provided a fallback solution [1] to save their
> touchpads but it seems patches on gpiolib-acpi.c and pinctrl-amd could
> reach mainline kernel much earlier.
> [1] https://lore.kernel.org/patchwork/patch/1323245/

With Best Regards,
Andy Shevchenko

More information about the Linux-kernel-mentees mailing list