• Linus Torvalds's avatar
    Merge tag 'pm-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm · f2d28566
    Linus Torvalds authored
    Pull power management updates from Rafael Wysocki:
     "These update the cpuidle poll state definition to reduce excessive
      energy usage related to it, add new CPU ID to the RAPL power capping
      driver, update the ACPI system suspend code to handle some special
      cases better, extend the PM core's device links code slightly, add new
      sysfs attribute for better suspend-to-idle diagnostics and easier
      hibernation handling, update power management tools and clean up
      cpufreq quite a bit.
    
      Specifics:
    
       - Modify the cpuidle poll state implementation to prevent CPUs from
         staying in the loop in there for excessive times (Rafael Wysocki).
    
       - Add Intel Cannon Lake chips support to the RAPL power capping
         driver (Joe Konno).
    
       - Add reference counting to the device links handling code in the PM
         core (Lukas Wunner).
    
       - Avoid reconfiguring GPEs on suspend-to-idle in the ACPI system
         suspend code (Rafael Wysocki).
    
       - Allow devices to be put into deeper low-power states via ACPI if
         both _SxD and _SxW are missing (Daniel Drake).
    
       - Reorganize the core ACPI suspend-to-idle wakeup code to avoid a
         keyboard wakeup issue on Asus UX331UA (Chris Chiu).
    
       - Prevent the PCMCIA library code from aborting suspend-to-idle due
         to noirq suspend failures resulting from incorrect assumptions
         (Rafael Wysocki).
    
       - Add coupled cpuidle supprt to the Exynos3250 platform (Marek
         Szyprowski).
    
       - Add new sysfs file to make it easier to specify the image storage
         location during hibernation (Mario Limonciello).
    
       - Add sysfs files for collecting suspend-to-idle usage and time
         statistics for CPU idle states (Rafael Wysocki).
    
       - Update the pm-graph utilities (Todd Brandt).
    
       - Reduce the kernel log noise related to reporting Low-power Idle
         constraings by the ACPI system suspend code (Rafael Wysocki).
    
       - Make it easier to distinguish dedicated wakeup IRQs in the
         /proc/interrupts output (Tony Lindgren).
    
       - Add the frequency table validation in cpufreq to the core and drop
         it from a number of cpufreq drivers (Viresh Kumar).
    
       - Drop "cooling-{min|max}-level" for CPU nodes from a couple of DT
         bindings (Viresh Kumar).
    
       - Clean up the CPU online error code path in the cpufreq core (Viresh
         Kumar).
    
       - Fix assorted issues in the SCPI, CPPC, mediatek and tegra186
         cpufreq drivers (Arnd Bergmann, Chunyu Hu, George Cherian, Viresh
         Kumar).
    
       - Drop memory allocation error messages from a few places in cpufreq
         and cpuildle drivers (Markus Elfring)"
    
    * tag 'pm-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (56 commits)
      ACPI / PM: Fix keyboard wakeup from suspend-to-idle on ASUS UX331UA
      cpufreq: CPPC: Use transition_delay_us depending transition_latency
      PM / hibernate: Change message when writing to /sys/power/resume
      PM / hibernate: Make passing hibernate offsets more friendly
      cpuidle: poll_state: Avoid invoking local_clock() too often
      PM: cpuidle/suspend: Add s2idle usage and time state attributes
      cpuidle: Enable coupled cpuidle support on Exynos3250 platform
      cpuidle: poll_state: Add time limit to poll_idle()
      cpufreq: tegra186: Don't validate the frequency table twice
      cpufreq: speedstep: Don't validate the frequency table twice
      cpufreq: sparc: Don't validate the frequency table twice
      cpufreq: sh: Don't validate the frequency table twice
      cpufreq: sfi: Don't validate the frequency table twice
      cpufreq: scpi: Don't validate the frequency table twice
      cpufreq: sc520: Don't validate the frequency table twice
      cpufreq: s3c24xx: Don't validate the frequency table twice
      cpufreq: qoirq: Don't validate the frequency table twice
      cpufreq: pxa: Don't validate the frequency table twice
      cpufreq: ppc_cbe: Don't validate the frequency table twice
      cpufreq: powernow: Don't validate the frequency table twice
      ...
    f2d28566
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