Hi Guys, The cpu_cooling driver is designed to use CPU frequency scaling to avoid high thermal states for a platform. But it wasn't glued really well with cpufreq core. For example clipped-cpus is copied from the policy structure and its much better to use the policy->cpus (or related_cpus) fields directly as they may have got updated. Not that things were broken before this series, but they can be optimized a bit more.
This series tries to improve interactions between cpufreq core and cpu_cooling driver and does some fixes/cleanups to the cpu_cooling driver. I have tested it on ARM 32 (exynos) and 64 bit (hikey) boards and have pushed them for 0-day build bot and kernel CI testing as well. We should know if something is broken with these. @Lukasz: It would be good if you can give them a test, specially because of your work on the "power" specific bits in the driver. This series already has the improvements you suggested. Pushed here as well: git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git thermal/cooling V2->V3: - Additional check to guarantee that policy is valid. - Initialize freq-table and cpufreq_cdev->policy fields before they are used by the power-cooling functionality. - Thanks Lukasz for testing out and suggesting these changes. V1->V2: - Name cpufreq cooling dev as cpufreq_cdev everywhere (Eduardo). -- viresh Viresh Kumar (17): thermal: cpu_cooling: Avoid accessing potentially freed structures thermal: cpu_cooling: rearrange globals thermal: cpu_cooling: Name cpufreq cooling devices as cpufreq_cdev thermal: cpu_cooling: replace cool_dev with cdev thermal: cpu_cooling: remove cpufreq_cooling_get_level() thermal: cpu_cooling: get rid of a variable in cpufreq_set_cur_state() thermal: cpu_cooling: use cpufreq_policy to register cooling device cpufreq: create cpufreq_table_count_valid_entries() thermal: cpu_cooling: store cpufreq policy thermal: cpu_cooling: OPPs are registered for all CPUs thermal: cpu_cooling: get rid of 'allowed_cpus' thermal: cpu_cooling: merge frequency and power tables thermal: cpu_cooling: create structure for idle time stats thermal: cpu_cooling: get_level() can't fail thermal: cpu_cooling: don't store cpu_dev in cpufreq_cdev thermal: cpu_cooling: 'freq' can't be zero in cpufreq_state2power() thermal: cpu_cooling: Rearrange struct cpufreq_cooling_device drivers/cpufreq/arm_big_little.c | 2 +- drivers/cpufreq/cpufreq-dt.c | 2 +- drivers/cpufreq/cpufreq_stats.c | 13 +- drivers/cpufreq/dbx500-cpufreq.c | 2 +- drivers/cpufreq/mt8173-cpufreq.c | 4 +- drivers/cpufreq/qoriq-cpufreq.c | 3 +- drivers/thermal/cpu_cooling.c | 602 +++++++++------------ drivers/thermal/imx_thermal.c | 22 +- drivers/thermal/ti-soc-thermal/ti-thermal-common.c | 22 +- include/linux/cpu_cooling.h | 32 +- include/linux/cpufreq.h | 14 + 11 files changed, 311 insertions(+), 407 deletions(-) -- 2.12.0.432.g71c3a4f4ba37
