linux/drivers/thermal
Javi Merino bcdcbbc711 thermal: fair_share: generalize the weight concept
The fair share governor has the concept of weights, which is the
influence of each cooling device in a thermal zone.  The current
implementation forces the weights of all cooling devices in a thermal
zone to add up to a 100.  This complicates setups, as you need to know
in advance how many cooling devices you are going to have.  If you bind a
new cooling device, you have to modify all the other cooling devices
weights, which is error prone.  Furthermore, you can't specify a
"default" weight for platforms since that default value depends on the
number of cooling devices in the platform.

This patch generalizes the concept of weight by allowing any number to
be a "weight".  Weights are now relative to each other.  Platforms that
don't specify weights get the same default value for all their cooling
devices, so all their cdevs are considered to be equally influential.

It's important to note that previous users of the weights don't need to
alter the code: percentages continue to work as they used to.  This
patch just removes the constraint of all the weights in a thermal zone
having to add up to a 100.  If they do, you get the same behavior as
before.  If they don't, fair share now works for that platform.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Durgadoss R <durgadoss.r@intel.com>
Acked-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Javi Merino <javi.merino@arm.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2015-05-04 21:27:51 -07:00
..
int340x_thermal Thermal/int340x: Fix memleak for aux trip 2015-03-05 01:41:51 -04:00
samsung thermal: exynos: Fix wrong control of power down detection mode for Exynos7 2015-03-02 10:04:51 +01:00
st drivers: thermal: st: remove several sparse warnings 2015-04-07 13:43:28 -07:00
ti-soc-thermal thermal: of: fix cooling device weights in device tree 2015-05-04 21:27:50 -07:00
armada_thermal.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 2014-12-17 10:16:27 -08:00
clock_cooling.c thermal: introduce clock cooling device 2014-11-20 10:43:16 -04:00
cpu_cooling.c Merge branches 'thermal-core', 'thermal-soc' and 'thermal-int340x' of .git into next 2014-12-24 10:38:30 +08:00
db8500_cpufreq_cooling.c Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal into thermal-soc 2014-12-21 22:49:12 +08:00
db8500_thermal.c thermal: of: fix cooling device weights in device tree 2015-05-04 21:27:50 -07:00
dove_thermal.c thermal: drop owner assignment from platform_drivers 2014-10-20 16:21:42 +02:00
fair_share.c thermal: fair_share: generalize the weight concept 2015-05-04 21:27:51 -07:00
gov_bang_bang.c thermal: Added Bang-bang thermal governor 2014-08-27 15:45:58 +08:00
imx_thermal.c thermal: of: fix cooling device weights in device tree 2015-05-04 21:27:50 -07:00
intel_powerclamp.c thermal/intel_powerclamp: add id for Avoton SoC 2015-02-28 13:55:40 +08:00
intel_soc_dts_thermal.c thermal: Intel SoC DTS: Add Braswell support 2015-01-29 11:28:01 +08:00
Kconfig thermal: rockchip: add driver for thermal 2014-11-24 14:35:07 -04:00
kirkwood_thermal.c thermal: drop owner assignment from platform_drivers 2014-10-20 16:21:42 +02:00
Makefile thermal: rockchip: add driver for thermal 2014-11-24 14:35:07 -04:00
of-thermal.c thermal: of: fix cooling device weights in device tree 2015-05-04 21:27:50 -07:00
rcar_thermal.c thermal: rcar: Make error and remove paths symmetrical with init 2015-02-24 14:58:05 -04:00
rockchip_thermal.c thermal: rockchip: make temperature reporting much more accurate 2015-01-24 23:38:36 -04:00
spear_thermal.c thermal: drop owner assignment from platform_drivers 2014-10-20 16:21:42 +02:00
step_wise.c thermal: step_wise: spelling fixes 2015-02-06 16:35:00 +08:00
tegra_soctherm.c thermal: of: improve of-thermal sensor registration API 2014-11-20 10:44:54 -04:00
thermal_core.c thermal: export weight to sysfs 2015-05-04 21:27:51 -07:00
thermal_core.h thermal: export weight to sysfs 2015-05-04 21:27:51 -07:00
thermal_hwmon.c thermal: hwmon: Make the check for critical temp valid consistent 2014-06-30 10:17:27 +08:00
thermal_hwmon.h thermal: hwmon: move hwmon support to single file 2013-09-03 09:09:12 -04:00
user_space.c Thermal: build thermal governors into thermal_sys module 2013-04-14 23:28:43 +08:00
x86_pkg_temp_thermal.c thermal, x86-pkg-temp: Fix CPU hotplug callback registration 2014-03-20 13:43:47 +01:00