diff options
Diffstat (limited to 'drivers/opp')
| -rw-r--r-- | drivers/opp/core.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c index 3f46e499d615..cb4f47b341f9 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -659,6 +659,34 @@ struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev, EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_ceil); /** + * dev_pm_opp_find_freq_ceil_indexed() - Search for a rounded ceil freq for the + * clock corresponding to the index + * @dev: Device for which we do this operation + * @freq: Start frequency + * @index: Clock index + * + * Search for the matching ceil *available* OPP for the clock corresponding to + * the specified index from a starting freq for a device. + * + * Return: matching *opp and refreshes *freq accordingly, else returns + * ERR_PTR in case of error and should be handled using IS_ERR. Error return + * values can be: + * EINVAL: for bad pointer + * ERANGE: no match found for search + * ENODEV: if device not found in list of registered devices + * + * The callers are required to call dev_pm_opp_put() for the returned OPP after + * use. + */ +struct dev_pm_opp * +dev_pm_opp_find_freq_ceil_indexed(struct device *dev, unsigned long *freq, + u32 index) +{ + return _find_key_ceil(dev, freq, index, true, _read_freq, NULL); +} +EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_ceil_indexed); + +/** * dev_pm_opp_find_freq_floor() - Search for a rounded floor freq * @dev: device for which we do this operation * @freq: Start frequency @@ -684,6 +712,34 @@ struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev, EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_floor); /** + * dev_pm_opp_find_freq_floor_indexed() - Search for a rounded floor freq for the + * clock corresponding to the index + * @dev: Device for which we do this operation + * @freq: Start frequency + * @index: Clock index + * + * Search for the matching floor *available* OPP for the clock corresponding to + * the specified index from a starting freq for a device. + * + * Return: matching *opp and refreshes *freq accordingly, else returns + * ERR_PTR in case of error and should be handled using IS_ERR. Error return + * values can be: + * EINVAL: for bad pointer + * ERANGE: no match found for search + * ENODEV: if device not found in list of registered devices + * + * The callers are required to call dev_pm_opp_put() for the returned OPP after + * use. + */ +struct dev_pm_opp * +dev_pm_opp_find_freq_floor_indexed(struct device *dev, unsigned long *freq, + u32 index) +{ + return _find_key_floor(dev, freq, index, true, _read_freq, NULL); +} +EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_floor_indexed); + +/** * dev_pm_opp_find_level_exact() - search for an exact level * @dev: device for which we do this operation * @level: level to search for |