mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: Thomas Richard <thomas.richard@bootlin.com>
To: rafael@kernel.org
Cc: regressions@lists.linux.dev, lenb@kernel.org,
	linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	sunilvl@ventanamicro.com, apatel@ventanamicro.com,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	Daniele Cleri <DanieleCleri@aaeon.eu>
Subject: [REGRESSION] in 6.18-rc1, failed to query a GPIO using a name in ACPI
Date: Thu, 16 Oct 2025 14:47:40 +0200	[thread overview]
Message-ID: <c321423b-3cdb-41a5-9939-dc5c846cfcd4@bootlin.com> (raw)

Hello,

While testing the AAEON UpBoard MFD driver with the v6.18-rc1 release, I
noticed a regression. The driver does not probe anymore and I get the
following error:

[    1.977831] upboard-fpga AANT0F01:00: error -ENOENT: Failed to
initialize FPGA common GPIOs
[    1.977854] upboard-fpga AANT0F01:00: probe with driver upboard-fpga
failed with error -2

The driver fails to get some GPIOs using a name [1] in the ACPI tables [2].

I did a bisect and I found the commit which introduced the regression:
e121be784d35 ("ACPI: property: Refactor acpi_fwnode_get_reference_args()
to support nargs_prop")

Best Regards,

Thomas

[1]
https://elixir.bootlin.com/linux/v6.17/source/drivers/mfd/upboard-fpga.c#L192
[2] https://gist.github.com/thom24/2da44ef86eacfa5d2d492ce43fa41aa4


             reply	other threads:[~2025-10-16 12:48 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-16 12:47 Thomas Richard [this message]
2025-10-16 22:22 ` Sunil V L
2025-10-17  8:50   ` Thomas Richard
2025-10-17 10:02     ` Sunil V L
2025-10-18 19:14       ` Andy Shevchenko
2025-10-18 19:34         ` Andy Shevchenko

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=c321423b-3cdb-41a5-9939-dc5c846cfcd4@bootlin.com \
    --to=thomas.richard@bootlin.com \
    --cc=DanieleCleri@aaeon.eu \
    --cc=andriy.shevchenko@linux.intel.com \
    --cc=apatel@ventanamicro.com \
    --cc=lenb@kernel.org \
    --cc=linux-acpi@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=rafael@kernel.org \
    --cc=regressions@lists.linux.dev \
    --cc=sunilvl@ventanamicro.com \
    --cc=thomas.petazzoni@bootlin.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®