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PM: domains: enable domain idle state accounting

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To enable better debug of PM domains, keep a track of successful
and failing attempts to enter each domain idle state.

This statistics are exported in debugfs when reading the
idle_states node associated with each PM domain.

Signed-off-by: Lina Iyer <ilina@codeaurora.org>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Lina Iyer
2020-10-15 14:47:22 -06:00
committed by Rafael J. Wysocki
parent 505a70b783
commit c6a113b523
2 changed files with 9 additions and 3 deletions
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2
include/linux/pm_domain.h
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@@ -89,6 +89,8 @@ struct genpd_power_state {
s64 power_off_latency_ns;
s64 power_on_latency_ns;
s64 residency_ns;
u64 usage;
u64 rejected;
struct fwnode_handle *fwnode;
ktime_t idle_time;
void *data;