diff options
Diffstat (limited to 'drivers/opp')
-rw-r--r-- | drivers/opp/core.c | 82 |
1 files changed, 41 insertions, 41 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c index a6e80f566e9b..29f8160c3e38 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -3013,6 +3013,47 @@ put_table: EXPORT_SYMBOL_GPL(dev_pm_opp_adjust_voltage); /** + * dev_pm_opp_sync_regulators() - Sync state of voltage regulators + * @dev: device for which we do this operation + * + * Sync voltage state of the OPP table regulators. + * + * Return: 0 on success or a negative error value. + */ +int dev_pm_opp_sync_regulators(struct device *dev) +{ + struct opp_table *opp_table; + struct regulator *reg; + int i, ret = 0; + + /* Device may not have OPP table */ + opp_table = _find_opp_table(dev); + if (IS_ERR(opp_table)) + return 0; + + /* Regulator may not be required for the device */ + if (unlikely(!opp_table->regulators)) + goto put_table; + + /* Nothing to sync if voltage wasn't changed */ + if (!opp_table->enabled) + goto put_table; + + for (i = 0; i < opp_table->regulator_count; i++) { + reg = opp_table->regulators[i]; + ret = regulator_sync_voltage(reg); + if (ret) + break; + } +put_table: + /* Drop reference taken by _find_opp_table() */ + dev_pm_opp_put_opp_table(opp_table); + + return ret; +} +EXPORT_SYMBOL_GPL(dev_pm_opp_sync_regulators); + +/** * dev_pm_opp_enable() - Enable a specific OPP * @dev: device for which we do this operation * @freq: OPP frequency to enable @@ -3135,44 +3176,3 @@ void dev_pm_opp_remove_table(struct device *dev) dev_pm_opp_put_opp_table(opp_table); } EXPORT_SYMBOL_GPL(dev_pm_opp_remove_table); - -/** - * dev_pm_opp_sync_regulators() - Sync state of voltage regulators - * @dev: device for which we do this operation - * - * Sync voltage state of the OPP table regulators. - * - * Return: 0 on success or a negative error value. - */ -int dev_pm_opp_sync_regulators(struct device *dev) -{ - struct opp_table *opp_table; - struct regulator *reg; - int i, ret = 0; - - /* Device may not have OPP table */ - opp_table = _find_opp_table(dev); - if (IS_ERR(opp_table)) - return 0; - - /* Regulator may not be required for the device */ - if (unlikely(!opp_table->regulators)) - goto put_table; - - /* Nothing to sync if voltage wasn't changed */ - if (!opp_table->enabled) - goto put_table; - - for (i = 0; i < opp_table->regulator_count; i++) { - reg = opp_table->regulators[i]; - ret = regulator_sync_voltage(reg); - if (ret) - break; - } -put_table: - /* Drop reference taken by _find_opp_table() */ - dev_pm_opp_put_opp_table(opp_table); - - return ret; -} -EXPORT_SYMBOL_GPL(dev_pm_opp_sync_regulators); |