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| author | Rajendra Nayak <rnayak@codeaurora.org> | 2021-08-12 14:27:21 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-08-16 19:45:29 +0300 |
| commit | c016baf7dc58e77acdedb2c75dac2b41b77bcf70 (patch) | |
| tree | 7b44948fc59588e47d051089054c73f7f812bb3a /include/linux/pm_domain.h | |
| parent | 020d86fc0df8b865f6dc168d88a7c2dccabd0a9e (diff) | |
| download | linux-c016baf7dc58e77acdedb2c75dac2b41b77bcf70.tar.xz | |
PM: domains: Add support for 'required-opps' to set default perf state
Some devices within power domains with performance states do not
support DVFS, but still need to vote on a default/static state
while they are active. They can express this using the 'required-opps'
property in device tree, which points to the phandle of the OPP
supported by the corresponding power-domains.
Add support to parse this information from DT and then set the
specified performance state during attach and drop it on detach.
runtime suspend/resume callbacks already have logic to drop/set
the vote as needed and should take care of dropping the default
perf state vote on runtime suspend and restore it back on runtime
resume.
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux/pm_domain.h')
| -rw-r--r-- | include/linux/pm_domain.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h index 21a0577305ef..67017c9390c8 100644 --- a/include/linux/pm_domain.h +++ b/include/linux/pm_domain.h @@ -198,6 +198,7 @@ struct generic_pm_domain_data { struct notifier_block *power_nb; int cpu; unsigned int performance_state; + unsigned int default_pstate; unsigned int rpm_pstate; ktime_t next_wakeup; void *data; |