linux-toradex.git/drivers/thermal/power_allocator.c, branch v4.4.93

thermal: power_allocator: Use temperature reading from tz

2015-11-12T18:47:24+00:00

All thermal governors use the temperature value stored in
struct thermal_zone_device.

   thermal_zone_device->temperature

power_allocator governor should not deviate from this and use
the same.

Cc: Javi Merino 
Cc: Eduardo Valentin 
Cc: Daniel Kurtz 
Cc: Zhang Rui 
Cc: Dmitry Torokhov 
Cc: Sascha Hauer 
Cc: Andrea Arcangeli 
Acked-by: Javi Merino 
Reported-by: Sugumar Natarajan 
Signed-off-by: Kapileshwar Singh 
Signed-off-by: Eduardo Valentin

remove abs64()

2015-11-09T23:11:24+00:00

Switch everything to the new and more capable implementation of abs().
Mainly to give the new abs() a bit of a workout.

Cc: Michal Nazarewicz 
Cc: John Stultz 
Cc: Ingo Molnar 
Cc: Steven Rostedt 
Cc: Peter Zijlstra 
Cc: Masami Hiramatsu 
Cc: Peter Zijlstra 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

thermal: avoid division by zero in power allocator

2015-10-02T01:42:35+00:00

During boot I get a div by zero Oops regression starting in v4.3-rc3.

Signed-off-by: Andrea Arcangeli 
Reviewed-by: Javi Merino 
Cc: Zhang Rui 
Cc: Eduardo Valentin 
Cc: Daniel Kurtz 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

thermal: power_allocator: exit early if there are no cooling devices

2015-09-20T07:37:16+00:00

Don't waste cycles in the power allocator governor's throttle function
if there are no cooling devices and exit early.

This commit doesn't change any functionality, but should provide better
performance for the odd case of a thermal zone with trip points but
without cooling devices.

Cc: Zhang Rui 
Cc: Eduardo Valentin 
Reviewed-by: Daniel Kurtz 
Signed-off-by: Javi Merino 
Signed-off-by: Eduardo Valentin

thermal: power_allocator: don't require tzp to be present for the thermal zone

2015-09-14T14:43:15+00:00

Thermal zones created using thermal_zone_device_create() may not have
tzp.  As the governor gets its parameters from there, allocate it while
the governor is bound to the thermal zone so that it can operate in it.
In this case, tzp is freed when the thermal zone switches to another
governor.

Cc: Zhang Rui 
Cc: Eduardo Valentin 
Reviewed-by: Daniel Kurtz 
Signed-off-by: Javi Merino 
Signed-off-by: Eduardo Valentin

thermal: power_allocator: relax the requirement of two passive trip points

2015-09-14T14:41:45+00:00

The power allocator governor currently requires that the thermal zone
has at least two passive trip points.  If there aren't, the governor
refuses to bind to the thermal zone.

This commit relaxes that requirement.  Now the governor will bind to all
thermal zones regardless of how many trip points they have.

Cc: Zhang Rui 
Cc: Eduardo Valentin 
Reviewed-by: Daniel Kurtz 
Signed-off-by: Javi Merino 
Signed-off-by: Eduardo Valentin

thermal: power_allocator: relax the requirement of a sustainable_power in tzp

2015-09-14T14:40:51+00:00

The power allocator governor currently requires that a sustainable power
is passed as part of the thermal zone's thermal zone parameters.  If
that parameter is not provided, it doesn't register with the thermal
zone.

While this parameter is strongly recommended for optimal performance, it
doesn't need to be mandatory.  Relax the requirement and allow the
governor to bind to thermal zones that don't provide it by estimating it
from the cooling devices' power model.

Cc: Zhang Rui 
Cc: Eduardo Valentin 
Reviewed-by: Daniel Kurtz 
Signed-off-by: Javi Merino 
Signed-off-by: Eduardo Valentin

Merge branches 'thermal-core' and 'thermal-intel' of .git into next

2015-09-02T02:08:02+00:00

thermal: power_allocator: allocate with kcalloc what you free with kfree

2015-08-29T17:10:47+00:00

Commit cf736ea6f902 ("thermal: power_allocator: do not use devm*
interfaces") forgot to change a devm_kcalloc() to just kcalloc(), but
it's corresponding devm_kfree() was changed to kfree().  Allocate with
kcalloc() to match the kfree().

Fixes: cf736ea6f902 ("thermal: power_allocator: do not use devm* interfaces")
Cc: Dmitry Torokhov 
Cc: Eduardo Valentin 
Cc: Zhang Rui 
Signed-off-by: Javi Merino 
Signed-off-by: Linus Torvalds

thermal: power_allocator: do not use devm* interfaces

2015-08-14T04:42:09+00:00

The code in question is called outside of standard driver
probe()/remove() callbacks and thus will not benefit from use of devm*
infrastructure.

Signed-off-by: Dmitry Torokhov 
Signed-off-by: Eduardo Valentin