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path: root/drivers/opp/core.c
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Diffstat (limited to 'drivers/opp/core.c')
-rw-r--r--drivers/opp/core.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c
index 0ee8c0133d3e..3b7ffd0234e9 100644
--- a/drivers/opp/core.c
+++ b/drivers/opp/core.c
@@ -988,6 +988,7 @@ static struct opp_table *_allocate_opp_table(struct device *dev, int index)
BLOCKING_INIT_NOTIFIER_HEAD(&opp_table->head);
INIT_LIST_HEAD(&opp_table->opp_list);
kref_init(&opp_table->kref);
+ kref_init(&opp_table->list_kref);
/* Secure the device table modification */
list_add(&opp_table->node, &opp_tables);
@@ -1625,6 +1626,12 @@ struct opp_table *dev_pm_opp_set_regulators(struct device *dev,
goto free_regulators;
}
+ ret = regulator_enable(reg);
+ if (ret < 0) {
+ regulator_put(reg);
+ goto free_regulators;
+ }
+
opp_table->regulators[i] = reg;
}
@@ -1638,8 +1645,10 @@ struct opp_table *dev_pm_opp_set_regulators(struct device *dev,
return opp_table;
free_regulators:
- while (i != 0)
- regulator_put(opp_table->regulators[--i]);
+ while (i--) {
+ regulator_disable(opp_table->regulators[i]);
+ regulator_put(opp_table->regulators[i]);
+ }
kfree(opp_table->regulators);
opp_table->regulators = NULL;
@@ -1665,8 +1674,10 @@ void dev_pm_opp_put_regulators(struct opp_table *opp_table)
/* Make sure there are no concurrent readers while updating opp_table */
WARN_ON(!list_empty(&opp_table->opp_list));
- for (i = opp_table->regulator_count - 1; i >= 0; i--)
+ for (i = opp_table->regulator_count - 1; i >= 0; i--) {
+ regulator_disable(opp_table->regulators[i]);
regulator_put(opp_table->regulators[i]);
+ }
_free_set_opp_data(opp_table);