From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout-04.galae.net (smtpout-04.galae.net [185.171.202.116]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1A23132D7E8 for ; Thu, 16 Oct 2025 12:48:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.171.202.116 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760618886; cv=none; b=VgFxPyh6OawIsA7wmQLrWI7hrx7tTt8Rp70HuzjRk0bpJZoblIhjkgVlwTEr4Ih6lNRsuIhIxBPpatrzrqQzWKXd/z12C0whK23SV1mlKbDYMnxswB3ImIxvJYi5TuZB1vt5+bt9R6+L6+NIfWnt9IQGgshEK12UfCI+OcCeoLg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760618886; c=relaxed/simple; bh=2VGYIFhCEbg4Av7ThEIru62x0BzDYBfbXS+3ApUDDF4=; h=Message-ID:Date:MIME-Version:From:Subject:To:Cc:Content-Type; b=QKAngXL+1dc3gr+b1oUsIRDaQdeOyviXYoQUIqYJUNdOX3aSA6484Zo4N9r9kK9lUukCV+1NTTFe7KGXgVX3iS/HLOL3Iys1jYoosD1Joe9Q65gmKWzPSgG/muX1JjKUhRo+iIsiOYlCReBSeXszcVGUkXVPS/Gheo6brEv4cLc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=1jgQmlEP; arc=none smtp.client-ip=185.171.202.116 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="1jgQmlEP" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id A9E12C041CB; Thu, 16 Oct 2025 12:47:35 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id D38F36062C; Thu, 16 Oct 2025 12:47:54 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id CE650102F22EF; Thu, 16 Oct 2025 14:47:45 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1760618874; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:content-language; bh=bDlImIPnSemLL+2SLF2wFv7SSzHssDb0btu+nU/rJmU=; b=1jgQmlEPos1PB5Fh62MniFagobrgwHnxZS+CfVr/57V9xJEvZoIgBCyh1d1P7947xJeXlG YHcNYBgBcnzE+cIZurnvR/SbogHePnEq0DaRVyTjc8m/ss8BYw5sd79ylaAfyCo6mXyjnv FgKjoFxfKVRDvGrp63upRa/jBNhAyxA1TejJMcdxV5zkwe9uSELiRUM8IcBgmDYWI8rvhl n2C8HMT91RfwJ0njDQh+xYbiQ5s1yp6J9yQrwD3nevQnW6N+PxvOXxe1cCaNukvzqACSfw IDQHsEUuSoK+turinZkaXxTg3C+IkLOOb4gRtuFaug9cOjwCkbCWk7Udp0V7iw== Message-ID: Date: Thu, 16 Oct 2025 14:47:40 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Thomas Richard Subject: [REGRESSION] in 6.18-rc1, failed to query a GPIO using a name in ACPI To: rafael@kernel.org Cc: regressions@lists.linux.dev, lenb@kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, Andy Shevchenko , sunilvl@ventanamicro.com, apatel@ventanamicro.com, Thomas Petazzoni , Daniele Cleri Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Last-TLS-Session-Version: TLSv1.3 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