Messages in this thread | | | From | Chanwoo Choi <> | Subject | [PATCH 0/4] PM / devfreq: Add cpu based scaling support to passive governor | Date | Thu, 17 Jun 2021 15:05:42 +0900 |
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The devfreq passive governor has already supported the devfreq parent device for coupling the frequency change if some hardware have the constraints such as power sharing and so on.
Add cpu based scaling support to passive governor with required-opp property. It uses the cpufreq notifier to catch the frequency change timing of cpufreq and get the next frequency according to new cpu frequency by using required-opp property. It is based on patch[1] and then just code clean-up by myself.
Make the common code for both passive_devfreq and passive_cpufreq parent type to remove the duplicate code.
The patch[2] is required for this patchset to use required-opp property.
[1] [RFC,v2] PM / devfreq: Add cpu based scaling support to passive_governor - https://lore.kernel.org/patchwork/patch/1101049/ [2] opp: Allow required-opps to be used for non genpd use cases - https://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git/commit/?h=opp/linux-next&id=5736929761d187499bdf8e2019090e3ed43d3d7b
Dear Andrew-sh.Cheng and Hsin-Yi Wang, Please test your patches based on this patchset and then reply the test result with your Tested-by tag or reviewed-by tag. Thanks for your work.
Chanwoo Choi (3): PM / devfreq: passive: Fix get_target_freq when not using required-opp PM / devfreq: Export devfreq_get_freq_ragne symbol within devfreq PM / devfreq: passive: Reduce duplicate code when passive_devfreq case
Saravana Kannan (1): PM / devfreq: Add cpu based scaling support to passive governor
drivers/devfreq/devfreq.c | 17 +- drivers/devfreq/governor.h | 24 +++ drivers/devfreq/governor_passive.c | 325 +++++++++++++++++++++++------ include/linux/devfreq.h | 16 +- 4 files changed, 310 insertions(+), 72 deletions(-)
-- 2.17.1
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