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From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux ACPI <linux-acpi@vger.kernel.org>
Cc: Bjorn Helgaas <helgaas@kernel.org>,
	Linux PM <linux-pm@vger.kernel.org>,
	Mika Westerberg <mika.westerberg@linux.intel.com>,
	LKML <linux-kernel@vger.kernel.org>,
	Zhang Rui <rui.zhang@intel.com>
Subject: [PATCH 0/2] ACPI: PM: Fix two issues in acpi_device_set_power()
Date: Tue, 25 Jun 2019 14:03:17 +0200	[thread overview]
Message-ID: <10419005.Mb09WM6RCc@kreacher> (raw)

Hi All,

There are two, arguably minor, issues in acpi_device_set_power() that have been
introduced while making the code follow the ACPI 6 recommendations.

One of them is that, if the device is in D3hot, transitioning it into D3cold only
involves dropping references to some power resources and it should not
involve evaluating _PS3 which may happen currently.

The second one is that it sometimes is necessary to update the power state
of a device to D0 even if it was put into D0 previously, so that needs to be
possible.

Please refer to the patch changelogs for details.

Thanks,
Rafael




             reply	other threads:[~2019-06-25 12:06 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-25 12:03 Rafael J. Wysocki [this message]
2019-06-25 12:04 ` [PATCH 1/2] ACPI: PM: Avoid evaluating _PS3 on transitions from D3hot to D3cold Rafael J. Wysocki
2019-06-25 14:11   ` Mika Westerberg
2019-07-05  9:49     ` Rafael J. Wysocki
2019-06-25 12:06 ` [PATCH 2/2] ACPI: PM: Allow transitions to D0 to occur in special cases Rafael J. Wysocki
2019-06-25 14:14   ` Mika Westerberg

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