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path: root/drivers/base/power/domain.c
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Diffstat (limited to 'drivers/base/power/domain.c')
-rw-r--r--drivers/base/power/domain.c20
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 2c334c01fc43..76c9969b7124 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -6,6 +6,8 @@
* This file is released under the GPLv2.
*/
+#define pr_fmt(fmt) "PM: " fmt
+
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/io.h>
@@ -457,19 +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;
}
/**
@@ -1657,8 +1659,8 @@ int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
genpd_lock_nested(genpd, SINGLE_DEPTH_NESTING);
if (!list_empty(&subdomain->master_links) || subdomain->device_count) {
- pr_warn("%s: unable to remove subdomain %s\n", genpd->name,
- subdomain->name);
+ pr_warn("%s: unable to remove subdomain %s\n",
+ genpd->name, subdomain->name);
ret = -EBUSY;
goto out;
}
@@ -1766,8 +1768,8 @@ int pm_genpd_init(struct generic_pm_domain *genpd,
ret = genpd_set_default_power_state(genpd);
if (ret)
return ret;
- } else if (!gov) {
- pr_warn("%s : no governor for states\n", genpd->name);
+ } else if (!gov && genpd->state_count > 1) {
+ pr_warn("%s: no governor for states\n", genpd->name);
}
device_initialize(&genpd->dev);
@@ -2514,7 +2516,7 @@ static int genpd_parse_state(struct genpd_power_state *genpd_state,
&entry_latency);
if (err) {
pr_debug(" * %pOF missing entry-latency-us property\n",
- state_node);
+ state_node);
return -EINVAL;
}
@@ -2522,7 +2524,7 @@ static int genpd_parse_state(struct genpd_power_state *genpd_state,
&exit_latency);
if (err) {
pr_debug(" * %pOF missing exit-latency-us property\n",
- state_node);
+ state_node);
return -EINVAL;
}