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From:
Marcus Glocker <marcus@nazgul.ch>
Subject:
Re: qcgpio(4) X1E support based on ACPI tables
To:
Landry Breuil <landry@openbsd.org>
Cc:
tech@openbsd.org
Date:
Sun, 22 Dec 2024 12:28:40 +0100

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On Sun, Dec 22, 2024 at 11:45:39AM GMT, Landry Breuil wrote:

> Le Sun, Dec 22, 2024 at 10:51:35AM +0100, Marcus Glocker a ?crit :
> > patrick@ found a NetBSD commit which figured out how to map the GPIO
> > pins based on the ACPI tables for X1E devices:
> > 
> > https://github.com/NetBSD/src/commit/575554bd388d93cfff9174abadf2aab93fbfdf8e
> > 
> > Currently we're only using hard coded mapping in qcgpio(4), which
> > might not do the correct mapping, or miss some mappings.
> > 
> > Following a diff which tries to adapt the NetBSD implementation in
> > qcpgio(4) for X1E devices.
> > 
> > Before I throw this diff in my attic, maybe some X1E users want to
> > regression test it, or see if it even fixes some GPIO mappings.
> 
> what could be a symptom of a non-working gpio mapping in dmesg ? missing
> devices ? disappearing devices with the diff ? will try it on the hp
> omnibook.

The devices would still show up in dmesg, but they would stop working.
Please note that in the diff debug level 1 is turned on, so you will
see some additional output in your dmesg.  Thanks for testing.