linux-kernel - [GIT PULL] Power management fixes for v5.2-rc3

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Message-ID: <CAJZ5v0j_uQxWZRjJ_=S1b=NRpLfyf_0KHfyPwSj30SRWr9RzHg@mail.gmail.com>
Date:   Fri, 31 May 2019 11:21:57 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Linux PM <linux-pm@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Linux PCI <linux-pci@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [GIT PULL] Power management fixes for v5.2-rc3

Hi Linus,

Please pull from the tag

 git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git \
 pm-5.2-rc3

with top-most commit d491f2b75237ef37d8867830ab7fad8d9659e853

 PCI: PM: Avoid possible suspend-to-idle issue

on top of commit cd6c84d8f0cdc911df435bb075ba22ce3c605b07

 Linux 5.2-rc2

to receive power management fixes for 5.2-rc3.

These fix three issues in the system-wide suspend and hibernation
area related to PCI device PM handling by suspend-to-idle, device
wakeup optimizations and arbitrary differences between suspend and
hiberantion.

Specifics:

 - Modify the PCI bus type's PM code to avoid putting devices left
   by their drivers in D0 on purpose during suspend to idle into
   low-power states as doing that may confuse the system resume
   callbacks of the drivers in question (Rafael Wysocki).

 - Avoid checking ACPI wakeup configuration during system-wide
   suspend for suspended devices that do not use ACPI-based wakeup
   to allow them to stay in suspend more often (Rafael Wysocki).

 - The last phase of hibernation is analogous to system-wide suspend
   also because on platforms with ACPI it passes control to the
   platform firmware to complete the transision, so make it indicate
   that by calling pm_set_suspend_via_firmware() to allow the drivers
   that care about this to do the right thing (Rafael Wysocki).

Thanks!


---------------

Rafael J. Wysocki (3):
      ACPI/PCI: PM: Add missing wakeup.flags.valid checks
      ACPI: PM: Call pm_set_suspend_via_firmware() during hibernation
      PCI: PM: Avoid possible suspend-to-idle issue

---------------

 drivers/acpi/device_pm.c |  4 ++--
 drivers/acpi/sleep.c     | 39 ++++++++++++++++++++++++---------------
 drivers/pci/pci-acpi.c   |  3 ++-
 drivers/pci/pci-driver.c | 17 ++++++++++++++++-
 include/linux/pci.h      |  1 +
 include/linux/suspend.h  |  2 +-
 kernel/power/hibernate.c |  4 ++--
 7 files changed, 48 insertions(+), 22 deletions(-)