From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:50257 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756107AbcDJSBM (ORCPT ); Sun, 10 Apr 2016 14:01:12 -0400 Subject: Patch "ACPI / PM: Runtime resume devices when waking from hibernate" has been added to the 4.5-stable tree To: lukas@wunner.de, gregkh@linuxfoundation.org, rafael.j.wysocki@intel.com Cc: , From: Date: Sun, 10 Apr 2016 11:01:09 -0700 Message-ID: <1460311269100219@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled ACPI / PM: Runtime resume devices when waking from hibernate to the 4.5-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: acpi-pm-runtime-resume-devices-when-waking-from-hibernate.patch and it can be found in the queue-4.5 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From fbda4b38fa3995aa0777fe9cbbdcb223c6292083 Mon Sep 17 00:00:00 2001 From: Lukas Wunner Date: Wed, 23 Mar 2016 00:11:20 +0100 Subject: ACPI / PM: Runtime resume devices when waking from hibernate From: Lukas Wunner commit fbda4b38fa3995aa0777fe9cbbdcb223c6292083 upstream. Commit 58a1fbbb2ee8 ("PM / PCI / ACPI: Kick devices that might have been reset by firmware") added a runtime resume for devices that were runtime suspended when the system entered suspend-to-RAM. Briefly, the motivation was to ensure that devices did not remain in a reset-power-on state after resume, potentially preventing deep SoC-wide low-power states from being entered on idle. Currently we're not doing the same when leaving suspend-to-disk and this asymmetry is a problem if drivers rely on the automatic resume triggered by pm_complete_with_resume_check(). Fix it. Fixes: 58a1fbbb2ee8 (PM / PCI / ACPI: Kick devices that might have been reset by firmware) Signed-off-by: Lukas Wunner Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/sleep.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -714,6 +714,7 @@ static int acpi_hibernation_enter(void) static void acpi_hibernation_leave(void) { + pm_set_resume_via_firmware(); /* * If ACPI is not enabled by the BIOS and the boot kernel, we need to * enable it here. Patches currently in stable-queue which might be from lukas@wunner.de are queue-4.5/acpi-pm-runtime-resume-devices-when-waking-from-hibernate.patch