• Linus Torvalds's avatar
    Merge tag 'pm-5.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · 702c31e8
    Linus Torvalds authored
    Pull power management fixes from Rafael Wysocki:
     "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)"
    
    * tag 'pm-5.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
      PCI: PM: Avoid possible suspend-to-idle issue
      ACPI: PM: Call pm_set_suspend_via_firmware() during hibernation
      ACPI/PCI: PM: Add missing wakeup.flags.valid checks
    702c31e8
device_pm.c 35.2 KB