From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Alan Cox <alan@llwyncelyn.cymru>
Cc: linux-kernel@vger.kernel.org, torvalds@linux-foundation.org
Subject: Re: Two regressions in 4.12-rc on Baytrail/T: #1 Pinctrol or WMI
Date: Wed, 7 Jun 2017 18:38:42 +0300 [thread overview]
Message-ID: <20170607153842.GN3187@lahna.fi.intel.com> (raw)
In-Reply-To: <20170607162044.4d6ba233@llwyncelyn.cymru>
On Wed, Jun 07, 2017 at 04:20:44PM +0100, Alan Cox wrote:
> ASUS T100TA, BIOS 3.07, machine version is the variant with the windows
> logo on the frame and no Energy Star logo.
>
> The first one is in the pin controller (or I guess WMI) which now spews
> the (non fatal)
>
> [ 22.491352] Potential Error: Setting GPIO with direct_irq_en to output
Yeah, this sounds like a bug in the BIOS. The direct_irq_en is set which
means that the GPIO is routed directly to the IO-APIC (and is expected
to be input) but the device in question (WMI?) probably has some ACPI
method that uses the GPIO via ACPI Operation Region as output.
prev parent reply other threads:[~2017-06-07 15:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-07 15:20 Alan Cox
2017-06-07 15:38 ` Mika Westerberg [this message]
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