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PM / Domains: Make it possible to assign names to generic PM domains

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Add a name member pointer to struct generic_pm_domain and use it in
diagnostic messages regarding the domain power-off and power-on
latencies.  Update the ARM shmobile SH7372 code to assign names to
the PM domains used by it.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Magnus Damm <damm@opensource.se>
This commit is contained in:
Rafael J. Wysocki
2011-12-06 22:19:54 +01:00
parent 4f042cdad4
commit e84b2c2027
3 changed files with 25 additions and 6 deletions
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14
drivers/base/power/domain.c
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@@ -209,8 +209,13 @@ int __pm_genpd_poweron(struct generic_pm_domain *genpd)
goto err;
elapsed_ns = ktime_to_ns(ktime_sub(ktime_get(), time_start));
if (elapsed_ns > genpd->power_on_latency_ns)
if (elapsed_ns > genpd->power_on_latency_ns) {
genpd->power_on_latency_ns = elapsed_ns;
if (genpd->name)
pr_warning("%s: Power-on latency exceeded, "
"new value %lld ns\n", genpd->name,
elapsed_ns);
}
}
genpd_set_active(genpd);
@@ -428,8 +433,13 @@ static int pm_genpd_poweroff(struct generic_pm_domain *genpd)
}
elapsed_ns = ktime_to_ns(ktime_sub(ktime_get(), time_start));
if (elapsed_ns > genpd->power_off_latency_ns)
if (elapsed_ns > genpd->power_off_latency_ns) {
genpd->power_off_latency_ns = elapsed_ns;
if (genpd->name)
pr_warning("%s: Power-off latency exceeded, "
"new value %lld ns\n", genpd->name,
elapsed_ns);
}
}
genpd->status = GPD_STATE_POWER_OFF;