path: root/drivers/acpi
diff options
authorLinus Torvalds <>2016-10-14 12:46:13 -0700
committerLinus Torvalds <>2016-10-14 12:46:13 -0700
commitef98988ba369da88bab8a4d457407e71bbe160fa (patch)
treed421d3401aab6d4f654f85707c584bdf6fe3d0ec /drivers/acpi
parentf34d3606f76a8121b9d4940d2dd436bebeb2f9d7 (diff)
parent383731d98e768e15f4a8d69ae87957b933323ed7 (diff)
Merge tag 'pm-extra-4.9-rc1' of git://
Pull more power management updates from Rafael Wysocki: "This includes a couple of fixes for cpufreq regressions introduced in 4.8, a rework of the intel_pstate algorithm used on Atom processors (that took some time to test) plus a fix and a couple of cleanups in that driver, a CPPC cpufreq driver fix, and a some devfreq fixes and cleanups (core and exynos-nocp). Specifics: - Fix two cpufreq regressions causing undesirable changes in behavior to appear (one in the core and one in the conservative governor) introduced during the 4.8 cycle (Aaro Koskinen, Rafael Wysocki). - Fix the way the intel_pstate driver accesses MSRs related to the hardware-managed P-states (HWP) feature during the initialization which currently is unsafe and may cause the processor to generate a general protection fault (Srinivas Pandruvada). - Rework the intel_pstate's P-state selection algorithm used on Atom processors to avoid known problems with the current one and to make the computation more straightforward, which also happens to improve performance in multiple benchmarks a bit (Rafael Wysocki). - Improve two comments in the intel_pstate driver (Rafael Wysocki). - Fix the desired performance computation in the CPPC cpufreq driver (Hoan Tran). - Fix the devfreq core to avoid printing misleading error messages in some cases (Tobias Jakobi). - Fix the error code path in devfreq_add_device() to use proper locking around list modifications (Axel Lin). - Fix a build failure and remove a couple of redundant updates of variables in the exynos-nocp devfreq driver (Axel Lin)" * tag 'pm-extra-4.9-rc1' of git:// cpufreq: CPPC: Correct desired_perf calculation cpufreq: conservative: Fix next frequency selection cpufreq: skip invalid entries when searching the frequency cpufreq: intel_pstate: Fix struct pstate_adjust_policy kerneldoc cpufreq: intel_pstate: Proportional algorithm for Atom PM / devfreq: Skip status update on uninitialized previous_freq PM / devfreq: Add proper locking around list_del() PM / devfreq: exynos-nocp: Remove redundant code PM / devfreq: exynos-nocp: Select REGMAP_MMIO cpufreq: intel_pstate: Clarify comment in get_target_pstate_use_performance() cpufreq: intel_pstate: Fix unsafe HWP MSR access
Diffstat (limited to 'drivers/acpi')
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