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

Coiby Xu coiby.xu at gmail.com
Mon Nov 2 22:56:00 UTC 2020

On Mon, Nov 02, 2020 at 09:06:23PM +0200, Andy Shevchenko wrote:
>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 :-)

Excellent! Thank you!
>> 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

Best regards,

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