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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-09 09:40:33 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-02-09 09:40:33 -0800 |
commit | a051c14b8db35cb269e9d91e11fc3573b6f7475d (patch) | |
tree | 35d603e7619b2a64d55fd9529519eac629b24173 /drivers/cpufreq/intel_pstate.c | |
parent | f1517df8701c9f12dae9ce7f43a5d300a6917619 (diff) | |
parent | 616f16093d852215f6a1188de1bafdc1f8892924 (diff) |
Merge tag 'pm-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"These are mostly fixes and cleanups and removal of the no longer
needed at32ap-cpufreq driver.
Specifics:
- Drop the at32ap-cpufreq driver which is useless after the removal
of the corresponding arch (Corentin LABBE).
- Fix a regression from the 4.14 cycle in the APM idle driver by
making it initialize the polling state properly (Rafael Wysocki).
- Fix a crash on failing system suspend due to a missing check in the
cpufreq core (Bo Yan).
- Make the intel_pstate driver initialize the hardware-managed
P-state control (HWP) feature on CPU0 upon resume from system
suspend if HWP had been enabled before the system was suspended
(Chen Yu).
- Fix up the SCPI cpufreq driver after recent changes (Sudeep Holla,
Wei Yongjun).
- Avoid pointer subtractions during frequency table walks in cpufreq
(Dominik Brodowski).
- Avoid the check for ProcFeedback in ST/CZ in the cpufreq driver for
AMD processors and add a MODULE_ALIAS for cpufreq on ARM IMX (Akshu
Agrawal, Nicolas Chauvet).
- Fix the prototype of swsusp_arch_resume() on x86 (Arnd Bergmann).
- Fix up the parsing of power domains DT data (Ulf Hansson)"
* tag 'pm-part2-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
arm: imx: Add MODULE_ALIAS for cpufreq
cpufreq: Add and use cpufreq_for_each_{valid_,}entry_idx()
cpufreq: intel_pstate: Enable HWP during system resume on CPU0
cpufreq: scpi: fix error return code in scpi_cpufreq_init()
x86: hibernate: fix swsusp_arch_resume() prototype
PM / domains: Fix up domain-idle-states OF parsing
cpufreq: scpi: fix static checker warning cdev isn't an ERR_PTR
cpufreq: remove at32ap-cpufreq
cpufreq: AMD: Ignore the check for ProcFeedback in ST/CZ
x86: PM: Make APM idle driver initialize polling state
cpufreq: Skip cpufreq resume if it's not suspended
Diffstat (limited to 'drivers/cpufreq/intel_pstate.c')
-rw-r--r-- | drivers/cpufreq/intel_pstate.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 7edf7a0e5a96..6d084c61ee25 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -779,6 +779,8 @@ static int intel_pstate_hwp_save_state(struct cpufreq_policy *policy) return 0; } +static void intel_pstate_hwp_enable(struct cpudata *cpudata); + static int intel_pstate_resume(struct cpufreq_policy *policy) { if (!hwp_active) @@ -786,6 +788,9 @@ static int intel_pstate_resume(struct cpufreq_policy *policy) mutex_lock(&intel_pstate_limits_lock); + if (policy->cpu == 0) + intel_pstate_hwp_enable(all_cpu_data[policy->cpu]); + all_cpu_data[policy->cpu]->epp_policy = 0; intel_pstate_hwp_set(policy->cpu); |