• Linus Torvalds's avatar
    Merge tag 'pm+acpi-3.16-rc1' of... · 4dc4226f
    Linus Torvalds authored
    Merge tag 'pm+acpi-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm into next
    
    Pull ACPI and power management updates from Rafael Wysocki:
     "ACPICA is the leader this time (63 commits), followed by cpufreq (28
      commits), devfreq (15 commits), system suspend/hibernation (12
      commits), ACPI video and ACPI device enumeration (10 commits each).
    
      We have no major new features this time, but there are a few
      significant changes of how things work.  The most visible one will
      probably be that we are now going to create platform devices rather
      than PNP devices by default for ACPI device objects with _HID.  That
      was long overdue and will be really necessary to be able to use the
      same drivers for the same hardware blocks on ACPI and DT-based systems
      going forward.  We're not expecting fallout from this one (as usual),
      but it's something to watch nevertheless.
    
      The second change having a chance to be visible is that ACPI video
      will now default to using native backlight rather than the ACPI
      backlight interface which should generally help systems with broken
      Win8 BIOSes.  We're hoping that all problems with the native backlight
      handling that we had previously have been addressed and we are in a
      good enough shape to flip the default, but this change should be easy
      enough to revert if need be.
    
      In addition to that, the system suspend core has a new mechanism to
      allow runtime-suspended devices to stay suspended throughout system
      suspend/resume transitions if some extra conditions are met
      (generally, they are related to coordination within device hierarchy).
      However, enabling this feature requires cooperation from the bus type
      layer and for now it has only been implemented for the ACPI PM domain
      (used by ACPI-enumerated platform devices mostly today).
    
      Also, the acpidump utility that was previously shipped as a separate
      tool will now be provided by the upstream ACPICA along with the rest
      of ACPICA code, which will allow it to be more up to date and better
      supported, and we have one new cpuidle driver (ARM clps711x).
    
      The rest is improvements related to certain specific use cases,
      cleanups and fixes all over the place.
    
      Specifics:
    
       - ACPICA update to upstream version 20140424.  That includes a number
         of fixes and improvements related to things like GPE handling,
         table loading, headers, memory mapping and unmapping, DSDT/SSDT
         overriding, and the Unload() operator.  The acpidump utility from
         upstream ACPICA is included too.  From Bob Moore, Lv Zheng, David
         Box, David Binderman, and Colin Ian King.
    
       - Fixes and cleanups related to ACPI video and backlight interfaces
         from Hans de Goede.  That includes blacklist entries for some new
         machines and using native backlight by default.
    
       - ACPI device enumeration changes to create platform devices rather
         than PNP devices for ACPI device objects with _HID by default.  PNP
         devices will still be created for the ACPI device object with
         device IDs corresponding to real PNP devices, so that change should
         not break things left and right, and we're expecting to see more
         and more ACPI-enumerated platform devices in the future.  From
         Zhang Rui and Rafael J Wysocki.
    
       - Updates for the ACPI LPSS (Low-Power Subsystem) driver allowing it
         to handle system suspend/resume on Asus T100 correctly.  From
         Heikki Krogerus and Rafael J Wysocki.
    
       - PM core update introducing a mechanism to allow runtime-suspended
         devices to stay suspended over system suspend/resume transitions if
         certain additional conditions related to coordination within device
         hierarchy are met.  Related PM documentation update and ACPI PM
         domain support for the new feature.  From Rafael J Wysocki.
    
       - Fixes and improvements related to the "freeze" sleep state.  They
         affect several places including cpuidle, PM core, ACPI core, and
         the ACPI battery driver.  From Rafael J Wysocki and Zhang Rui.
    
       - Miscellaneous fixes and updates of the ACPI core from Aaron Lu,
         Bjørn Mork, Hanjun Guo, Lan Tianyu, and Rafael J Wysocki.
    
       - Fixes and cleanups for the ACPI processor and ACPI PAD (Processor
         Aggregator Device) drivers from Baoquan He, Manuel Schölling, Tony
         Camuso, and Toshi Kani.
    
       - System suspend/resume optimization in the ACPI battery driver from
         Lan Tianyu.
    
       - OPP (Operating Performance Points) subsystem updates from Chander
         Kashyap, Mark Brown, and Nishanth Menon.
    
       - cpufreq core fixes, updates and cleanups from Srivatsa S Bhat,
         Stratos Karafotis, and Viresh Kumar.
    
       - Updates, fixes and cleanups for the Tegra, powernow-k8, imx6q,
         s5pv210, nforce2, and powernv cpufreq drivers from Brian Norris,
         Jingoo Han, Paul Bolle, Philipp Zabel, Stratos Karafotis, and
         Viresh Kumar.
    
       - intel_pstate driver fixes and cleanups from Dirk Brandewie, Doug
         Smythies, and Stratos Karafotis.
    
       - Enabling the big.LITTLE cpufreq driver on arm64 from Mark Brown.
    
       - Fix for the cpuidle menu governor from Chander Kashyap.
    
       - New ARM clps711x cpuidle driver from Alexander Shiyan.
    
       - Hibernate core fixes and cleanups from Chen Gang, Dan Carpenter,
         Fabian Frederick, Pali Rohár, and Sebastian Capella.
    
       - Intel RAPL (Running Average Power Limit) driver updates from Jacob
         Pan.
    
       - PNP subsystem updates from Bjorn Helgaas and Fabian Frederick.
    
       - devfreq core updates from Chanwoo Choi and Paul Bolle.
    
       - devfreq updates for exynos4 and exynos5 from Chanwoo Choi and
         Bartlomiej Zolnierkiewicz.
    
       - turbostat tool fix from Jean Delvare.
    
       - cpupower tool updates from Prarit Bhargava, Ramkumar Ramachandra
         and Thomas Renninger.
    
       - New ACPI ec_access.c tool for poking at the EC in a safe way from
         Thomas Renninger"
    
    * tag 'pm+acpi-3.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (187 commits)
      ACPICA: Namespace: Remove _PRP method support.
      intel_pstate: Improve initial busy calculation
      intel_pstate: add sample time scaling
      intel_pstate: Correct rounding in busy calculation
      intel_pstate: Remove C0 tracking
      PM / hibernate: fixed typo in comment
      ACPI: Fix x86 regression related to early mapping size limitation
      ACPICA: Tables: Add mechanism to control early table checksum verification.
      ACPI / scan: use platform bus type by default for _HID enumeration
      ACPI / scan: always register ACPI LPSS scan handler
      ACPI / scan: always register memory hotplug scan handler
      ACPI / scan: always register container scan handler
      ACPI / scan: Change the meaning of missing .attach() in scan handlers
      ACPI / scan: introduce platform_id device PNP type flag
      ACPI / scan: drop unsupported serial IDs from PNP ACPI scan handler ID list
      ACPI / scan: drop IDs that do not comply with the ACPI PNP ID rule
      ACPI / PNP: use device ID list for PNPACPI device enumeration
      ACPI / scan: .match() callback for ACPI scan handlers
      ACPI / battery: wakeup the system only when necessary
      power_supply: allow power supply devices registered w/o wakeup source
      ...
    4dc4226f
Makefile 2.26 KB