linux.git/drivers/cpufreq, branch v5.4-rc2

Merge tag 'pm-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

2019-09-18T02:15:14+00:00

Pull power management updates from Rafael Wysocki:
"These include a rework of the main suspend-to-idle code flow (related
to the handling of spurious wakeups), a switch over of several users
of cpufreq notifiers to QoS-based limits, a new devfreq driver for
Tegra20, a new cpuidle driver and governor for virtualized guests, an
extension of the wakeup sources framework to expose wakeup sources as
device objects in sysfs, and more.

Specifics:

- Rework the main suspend-to-idle control flow to avoid repeating
"noirq" device resume and suspend operations in case of spurious
wakeups from the ACPI EC and decouple the ACPI EC wakeups support
from the LPS0 _DSM support (Rafael Wysocki).

- Extend the wakeup sources framework to expose wakeup sources as
device objects in sysfs (Tri Vo, Stephen Boyd).

- Expose system suspend statistics in sysfs (Kalesh Singh).

- Introduce a new haltpoll cpuidle driver and a new matching governor
for virtualized guests wanting to do guest-side polling in the idle
loop (Marcelo Tosatti, Joao Martins, Wanpeng Li, Stephen Rothwell).

- Fix the menu and teo cpuidle governors to allow the scheduler tick
to be stopped if PM QoS is used to limit the CPU idle state exit
latency in some cases (Rafael Wysocki).

- Increase the resolution of the play_idle() argument to microseconds
for more fine-grained injection of CPU idle cycles (Daniel
Lezcano).

- Switch over some users of cpuidle notifiers to the new QoS-based
frequency limits and drop the CPUFREQ_ADJUST and CPUFREQ_NOTIFY
policy notifier events (Viresh Kumar).

- Add new cpufreq driver based on nvmem for sun50i (Yangtao Li).

- Add support for MT8183 and MT8516 to the mediatek cpufreq driver
(Andrew-sh.Cheng, Fabien Parent).

- Add i.MX8MN support to the imx-cpufreq-dt cpufreq driver (Anson
Huang).

- Add qcs404 to cpufreq-dt-platdev blacklist (Jorge Ramirez-Ortiz).

- Update the qcom cpufreq driver (among other things, to make it
easier to extend and to use kryo cpufreq for other nvmem-based
SoCs) and add qcs404 support to it (Niklas Cassel, Douglas
RAILLARD, Sibi Sankar, Sricharan R).

- Fix assorted issues and make assorted minor improvements in the
cpufreq code (Colin Ian King, Douglas RAILLARD, Florian Fainelli,
Gustavo Silva, Hariprasad Kelam).

- Add new devfreq driver for NVidia Tegra20 (Dmitry Osipenko, Arnd
Bergmann).

- Add new Exynos PPMU events to devfreq events and extend that
mechanism (Lukasz Luba).

- Fix and clean up the exynos-bus devfreq driver (Kamil Konieczny).

- Improve devfreq documentation and governor code, fix spelling typos
in devfreq (Ezequiel Garcia, Krzysztof Kozlowski, Leonard Crestez,
MyungJoo Ham, Gaël PORTAY).

- Add regulators enable and disable to the OPP (operating performance
points) framework (Kamil Konieczny).

- Update the OPP framework to support multiple opp-suspend properties
(Anson Huang).

- Fix assorted issues and make assorted minor improvements in the OPP
code (Niklas Cassel, Viresh Kumar, Yue Hu).

- Clean up the generic power domains (genpd) framework (Ulf Hansson).

- Clean up assorted pieces of power management code and documentation
(Akinobu Mita, Amit Kucheria, Chuhong Yuan).

- Update the pm-graph tool to version 5.5 including multiple fixes
and improvements (Todd Brandt).

- Update the cpupower utility (Benjamin Weis, Geert Uytterhoeven,
Sébastien Szymanski)"

* tag 'pm-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (126 commits)
cpuidle-haltpoll: Enable kvm guest polling when dedicated physical CPUs are available
cpuidle-haltpoll: do not set an owner to allow modunload
cpuidle-haltpoll: return -ENODEV on modinit failure
cpuidle-haltpoll: set haltpoll as preferred governor
cpuidle: allow governor switch on cpuidle_register_driver()
PM: runtime: Documentation: add runtime_status ABI document
pm-graph: make setVal unbuffered again for python2 and python3
powercap: idle_inject: Use higher resolution for idle injection
cpuidle: play_idle: Increase the resolution to usec
cpuidle-haltpoll: vcpu hotplug support
cpufreq: Add qcs404 to cpufreq-dt-platdev blacklist
cpufreq: qcom: Add support for qcs404 on nvmem driver
cpufreq: qcom: Refactor the driver to make it easier to extend
cpufreq: qcom: Re-organise kryo cpufreq to use it for other nvmem based qcom socs
dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR
dt-bindings: opp: qcom-nvmem: Support pstates provided by a power domain
Documentation: cpufreq: Update policy notifier documentation
cpufreq: Remove CPUFREQ_ADJUST and CPUFREQ_NOTIFY policy notifier events
PM / Domains: Verify PM domain type in dev_pm_genpd_set_performance_state()
PM / Domains: Simplify genpd_lookup_dev()
...

Merge branch 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm

2019-09-05T07:02:51+00:00

Pull ARM cpufreq driver changes for 5.4 from Viresh Kumar:

"This contains:

- Minor fixes for mediatek driver (Andrew-sh.Cheng and Fabien Parent).
- Minor updates for imx driver (Anson Huang).
- Minor fix for ti-cpufreq driver (Gustavo A. R. Silva).
- Minor fix for ap806 driver (Hariprasad Kelam).
- Significant updates to qcom cpufreq drivers, mostly to support CPR
  stuff (Jorge Ramirez-Ortiz, Niklas Cassel, Sibi Sankar, Douglas
  RAILLARD and Sricharan R).
- New sun50i cpufreq driver (Yangtao Li).

It also contains a few OPP changes which were required because of
dependencies for the qcom cpufreq changes."

* 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: (22 commits)
  cpufreq: Add qcs404 to cpufreq-dt-platdev blacklist
  cpufreq: qcom: Add support for qcs404 on nvmem driver
  cpufreq: qcom: Refactor the driver to make it easier to extend
  cpufreq: qcom: Re-organise kryo cpufreq to use it for other nvmem based qcom socs
  dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR
  dt-bindings: opp: qcom-nvmem: Support pstates provided by a power domain
  cpufreq: mediatek: Add support for mt8183
  cpufreq: mediatek: change to regulator_get_optional
  cpufreq: imx-cpufreq-dt: Add i.MX8MN support
  cpufreq: Use imx-cpufreq-dt for i.MX8MN's speed grading
  cpufreq: qcom-hw: invoke frequency-invariance setter function
  cpufreq: qcom-hw: Update logic to detect turbo frequency
  cpufreq: mediatek-cpufreq: Add compatible for MT8516
  cpufreq: ti-cpufreq: Mark expected switch fall-through
  dt-bindings: opp: qcom-nvmem: Make speedbin related properties optional
  dt-bindings: opp: Re-organise kryo cpufreq to use it for other nvmem based qcom socs
  opp: Add dev_pm_opp_find_level_exact()
  opp: Return genpd virtual devices from dev_pm_opp_attach_genpd()
  opp: Not all power-domains are scalable
  cpufreq: ap806: Add NULL check after kcalloc
  ...

Merge branch 'pm-cpufreq-qos'

2019-09-05T07:01:26+00:00

* pm-cpufreq-qos:
  Documentation: cpufreq: Update policy notifier documentation
  cpufreq: Remove CPUFREQ_ADJUST and CPUFREQ_NOTIFY policy notifier events
  ACPI: cpufreq: Switch to QoS requests instead of cpufreq notifier
  video: pxafb: Remove cpufreq policy notifier
  video: sa1100fb: Remove cpufreq policy notifier
  arch_topology: Use CPUFREQ_CREATE_POLICY instead of CPUFREQ_NOTIFY
  cpufreq: powerpc_cbe: Switch to QoS requests for freq limits
  cpufreq: powerpc: macintosh: Switch to QoS requests for freq limits
  thermal: cpu_cooling: Switch to QoS requests for freq limits
  cpufreq: Add policy create/remove notifiers back

Merge branch 'cpufreq/qcom-updates' into cpufreq/arm/linux-next

2019-09-03T02:25:22+00:00

cpufreq: Add qcs404 to cpufreq-dt-platdev blacklist

2019-09-03T02:25:00+00:00

Add qcs404 to cpufreq-dt-platdev blacklist.

Signed-off-by: Jorge Ramirez-Ortiz 
Co-developed-by: Niklas Cassel 
Signed-off-by: Niklas Cassel 
Signed-off-by: Viresh Kumar

cpufreq: qcom: Add support for qcs404 on nvmem driver

2019-09-03T02:25:00+00:00

Add support for qcs404 on nvmem driver.

The qcs404 SoC has support for Core Power Reduction (CPR), which is
implemented as a power domain provider, therefore add optional support
in this driver to attach to a genpd power domain.

Co-developed-by: Jorge Ramirez-Ortiz 
Signed-off-by: Jorge Ramirez-Ortiz 
Signed-off-by: Niklas Cassel 
Signed-off-by: Viresh Kumar

cpufreq: qcom: Refactor the driver to make it easier to extend

2019-09-03T02:25:00+00:00

Refactor the driver to make it easier to extend in a later commit.

Create a driver struct to collect all common resources, in order to make
it easier to free up all common resources.
Create a driver match_data struct to make it easier to extend the driver
with support for new features that might only be supported on certain SoCs.

Co-developed-by: Jorge Ramirez-Ortiz 
Signed-off-by: Jorge Ramirez-Ortiz 
Signed-off-by: Niklas Cassel 
Reviewed-by: Ilia Lin 
Signed-off-by: Viresh Kumar

cpufreq: qcom: Re-organise kryo cpufreq to use it for other nvmem based qcom socs

2019-09-03T02:25:00+00:00

The kryo cpufreq driver reads the nvmem cell and uses that data to
populate the opps. There are other qcom cpufreq socs like krait which
does similar thing. Except for the interpretation of the read data,
rest of the driver is same for both the cases. So pull the common things
out for reuse.

Signed-off-by: Sricharan R 
[niklas.cassel@linaro.org: split dt-binding into a separate patch and
do not rename the compatible string. Update MAINTAINERS file.]
Signed-off-by: Niklas Cassel 
Reviewed-by: Ilia Lin 
Reviewed-by: Stephen Boyd 
Signed-off-by: Viresh Kumar

cpufreq: Remove CPUFREQ_ADJUST and CPUFREQ_NOTIFY policy notifier events

2019-09-02T20:44:04+00:00

No driver makes reference to these events now, remove them and the code
related to them.

Signed-off-by: Viresh Kumar 
Signed-off-by: Rafael J. Wysocki

x86/intel: Aggregate microserver naming

2019-08-28T09:29:32+00:00

Currently big microservers have _XEON_D while small microservers have
_X, Make it uniformly: _D.

for i in `git grep -l "\(INTEL_FAM6_\|VULNWL_INTEL\|INTEL_CPU_FAM6\).*_\(X\|XEON_D\)"`
do
	sed -i -e 's/\(\(INTEL_FAM6_\|VULNWL_INTEL\|INTEL_CPU_FAM6\).*ATOM.*\)_X/\1_D/g' \
	       -e 's/\(\(INTEL_FAM6_\|VULNWL_INTEL\|INTEL_CPU_FAM6\).*\)_XEON_D/\1_D/g' ${i}
done

Signed-off-by: Peter Zijlstra (Intel) 
Reviewed-by: Tony Luck 
Cc: x86@kernel.org
Cc: Dave Hansen 
Cc: Thomas Gleixner 
Cc: Borislav Petkov 
Link: https://lkml.kernel.org/r/20190827195122.677152989@infradead.org