From: Mika Westerberg <mika.westerberg@linux.intel.com>
To: Lukas Wunner <lukas@wunner.de>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
Mark Brown <broonie@kernel.org>,
Ronald Tschalaer <ronald@innovation.ch>,
Federico Lorenzi <florenzi@gmail.com>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Leif Liddy <leif.liddy@gmail.com>,
Daniel Roschka <danielroschka@phoenitydawn.de>,
linux-acpi@vger.kernel.org, linux-spi@vger.kernel.org
Subject: Re: [PATCH v2 1/4] ACPI / property: Don't evaluate objects for devices w/o handle
Date: Thu, 29 Jun 2017 10:30:58 +0300 [thread overview]
Message-ID: <20170629073058.GY629@lahna.fi.intel.com> (raw)
In-Reply-To: <f3596c7e5add8803a6022c04cedbaace11d70288.1498636759.git.lukas@wunner.de>
On Wed, Jun 28, 2017 at 07:20:19PM +0200, Lukas Wunner wrote:
> Fabricated devices such as LNXPWRBN lack a handle, causing evaluation
> of _CCA and _DSD to always fail with AE_BAD_PARAMETER. While that is
> merely a (negligible) waste of processing power, evaluating a _DSM for
> them (such as Apple's device properties _DSM which we're about to add)
> results in an ugly error:
>
> ACPI: \: failed to evaluate _DSM (0x1001)
>
> Avoid by not evaluating _DSD and the upcoming _DSM for devices without
> handle.
>
> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
next prev parent reply other threads:[~2017-06-29 7:31 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-28 17:20 [PATCH v2 0/4] Apple SPI properties Lukas Wunner
[not found] ` <cover.1498636759.git.lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
2017-06-28 17:20 ` [PATCH v2 3/4] ACPI / scan: Recognize Apple SPI and I2C slaves Lukas Wunner
2017-06-29 7:34 ` Mika Westerberg
2017-06-29 8:46 ` Lukas Wunner
[not found] ` <20170629084604.swuzzxsdiiosqurz-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
2017-06-29 9:22 ` Mika Westerberg
2017-06-28 17:20 ` [PATCH v2 1/4] ACPI / property: Don't evaluate objects for devices w/o handle Lukas Wunner
2017-06-29 7:30 ` Mika Westerberg [this message]
2017-06-28 17:20 ` [PATCH v2 4/4] spi: Use Apple device properties in absence of ACPI resources Lukas Wunner
2017-06-28 18:27 ` Mark Brown
[not found] ` <bca7fb9e406bbfa9ee7e8457cacd34418ef689be.1498636759.git.lukas-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
2017-06-28 19:14 ` Andy Shevchenko
2017-06-29 7:54 ` Mika Westerberg
2017-06-28 17:20 ` [PATCH v2 2/4] ACPI / property: Support Apple _DSM properties Lukas Wunner
2017-06-28 18:53 ` Andy Shevchenko
2017-07-02 11:07 ` Lukas Wunner
[not found] ` <20170702110719.GA825-JFq808J9C/izQB+pC5nmwQ@public.gmane.org>
2017-07-03 22:47 ` Rafael J. Wysocki
2017-06-29 7:45 ` Mika Westerberg
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