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From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux ACPI <linux-acpi@vger.kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Linux PM <linux-pm@vger.kernel.org>,
	David Box <david.e.box@linux.intel.com>
Subject: [PATCH v2 0/2] ACPI: scan: Turn off unused power resources during initialization
Date: Thu, 18 Mar 2021 19:23:38 +0100	[thread overview]
Message-ID: <3108574.44csPzL39Z@kreacher> (raw)

Hi,

Power resources that aren't associated with any devices are expected to be
turned off by the OS, but Linux only does that during resume from
suspend-to-RAM.  That turns out to be problematic, so turn them off during
system initialization too (patch [1/2]).

In addition to that, turn them off unconditionally, without checking the
current status, which should be safe and may help to work around firmware
issues (patch [2/2]).

Please refer to the patch changelogs for details.

Thanks!




             reply	other threads:[~2021-03-18 18:29 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-18 18:23 Rafael J. Wysocki [this message]
2021-03-18 18:25 ` [PATCH v2 1/2] ACPI: scan: Turn off unused power resources during initialization Rafael J. Wysocki
2021-03-18 18:28 ` [PATCH v2 2/2] ACPI: power: Turn off unused power resources unconditionally Rafael J. Wysocki

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