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OPP: Add dev_pm_opp_find_freq_exact_indexed()

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The indexed version of the API is added for other floor and ceil, add
the same for exact as well for completeness.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Viresh Kumar 2023-07-21 13:41:20 +05:30
parent 5f756d03e2
commit a5893928bb
2 changed files with 39 additions and 0 deletions
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28
drivers/opp/core.c
View File

@ -646,6 +646,34 @@ struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
}
EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_exact);
/**
* dev_pm_opp_find_freq_exact_indexed() - Search for an exact freq for the
* clock corresponding to the index
* @dev: Device for which we do this operation
* @freq: frequency to search for
* @index: Clock index
* @available: true/false - match for available opp
*
* Search for the matching exact OPP for the clock corresponding to the
* specified index from a starting freq for a device.
*
* Return: matching *opp , 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_exact_indexed(struct device *dev, unsigned long freq,
u32 index, bool available)
{
return _find_key_exact(dev, freq, index, available, _read_freq, NULL);
}
EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_exact_indexed);
static noinline struct dev_pm_opp *_find_freq_ceil(struct opp_table *opp_table,
unsigned long *freq)
{

11
include/linux/pm_opp.h
View File

@ -124,6 +124,10 @@ struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
unsigned long freq,
bool available);
struct dev_pm_opp *
dev_pm_opp_find_freq_exact_indexed(struct device *dev, unsigned long freq,
u32 index, bool available);
struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
unsigned long *freq);
@ -268,6 +272,13 @@ static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
return ERR_PTR(-EOPNOTSUPP);
}
static inline struct dev_pm_opp *
dev_pm_opp_find_freq_exact_indexed(struct device *dev, unsigned long freq,
u32 index, bool available)
{
return ERR_PTR(-EOPNOTSUPP);
}
static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
unsigned long *freq)
{