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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2019-03-14 12:53:08 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2019-03-14 12:53:08 +0300
commit75f3e2395430ad6416a7d35e892db7ff60e012e1 (patch)
tree2ebcbc5e680e98df393696341e36926ff365b585 /drivers/base
parent4650b2792944e4cee86df6b016f2b7338a0b33f1 (diff)
parentd9dfca7f81246db9a2c28ac1c811fc1085fbd478 (diff)
downloadlinux-75f3e2395430ad6416a7d35e892db7ff60e012e1.tar.xz
Merge branch 'pm-domains'
* pm-domains: PM / domains: Remove one unnecessary blank line PM / Domains: Return early for all errors in _genpd_power_off() PM / Domains: Improve warn for multiple states but no governor
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/power/domain.c8
-rw-r--r--drivers/base/power/domain_governor.c1
2 files changed, 4 insertions, 5 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 764e0f28979e..76c9969b7124 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -459,19 +459,19 @@ static int _genpd_power_off(struct generic_pm_domain *genpd, bool timed)
time_start = ktime_get();
ret = genpd->power_off(genpd);
- if (ret == -EBUSY)
+ if (ret)
return ret;
elapsed_ns = ktime_to_ns(ktime_sub(ktime_get(), time_start));
if (elapsed_ns <= genpd->states[state_idx].power_off_latency_ns)
- return ret;
+ return 0;
genpd->states[state_idx].power_off_latency_ns = elapsed_ns;
genpd->max_off_time_changed = true;
pr_debug("%s: Power-%s latency exceeded, new value %lld ns\n",
genpd->name, "off", elapsed_ns);
- return ret;
+ return 0;
}
/**
@@ -1768,7 +1768,7 @@ int pm_genpd_init(struct generic_pm_domain *genpd,
ret = genpd_set_default_power_state(genpd);
if (ret)
return ret;
- } else if (!gov) {
+ } else if (!gov && genpd->state_count > 1) {
pr_warn("%s: no governor for states\n", genpd->name);
}
diff --git a/drivers/base/power/domain_governor.c b/drivers/base/power/domain_governor.c
index 99896fbf18e4..4d07e38a8247 100644
--- a/drivers/base/power/domain_governor.c
+++ b/drivers/base/power/domain_governor.c
@@ -128,7 +128,6 @@ static bool __default_power_down_ok(struct dev_pm_domain *pd,
off_on_time_ns = genpd->states[state].power_off_latency_ns +
genpd->states[state].power_on_latency_ns;
-
min_off_time_ns = -1;
/*
* Check if subdomains can be off for enough time.