diff options
| -rw-r--r-- | drivers/opp/core.c | 83 |
1 files changed, 15 insertions, 68 deletions
diff --git a/drivers/opp/core.c b/drivers/opp/core.c index 968fdbbc0693..5ad43dbfd87f 100644 --- a/drivers/opp/core.c +++ b/drivers/opp/core.c @@ -438,6 +438,11 @@ static unsigned long _read_level(struct dev_pm_opp *opp, int index) return opp->level; } +static unsigned long _read_bw(struct dev_pm_opp *opp, int index) +{ + return opp->bandwidth[index].peak; +} + /* Generic comparison helpers */ static bool _compare_exact(struct dev_pm_opp **opp, struct dev_pm_opp *temp_opp, unsigned long opp_key, unsigned long key) @@ -711,42 +716,14 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_find_level_ceil); * The callers are required to call dev_pm_opp_put() for the returned OPP after * use. */ -struct dev_pm_opp *dev_pm_opp_find_bw_ceil(struct device *dev, - unsigned int *bw, int index) +struct dev_pm_opp *dev_pm_opp_find_bw_ceil(struct device *dev, unsigned int *bw, + int index) { - struct opp_table *opp_table; - struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE); - - if (!dev || !bw) { - dev_err(dev, "%s: Invalid argument bw=%p\n", __func__, bw); - return ERR_PTR(-EINVAL); - } - - opp_table = _find_opp_table(dev); - if (IS_ERR(opp_table)) - return ERR_CAST(opp_table); - - if (index >= opp_table->path_count) - return ERR_PTR(-EINVAL); - - mutex_lock(&opp_table->lock); - - list_for_each_entry(temp_opp, &opp_table->opp_list, node) { - if (temp_opp->available && temp_opp->bandwidth) { - if (temp_opp->bandwidth[index].peak >= *bw) { - opp = temp_opp; - *bw = opp->bandwidth[index].peak; - - /* Increment the reference count of OPP */ - dev_pm_opp_get(opp); - break; - } - } - } - - mutex_unlock(&opp_table->lock); - dev_pm_opp_put_opp_table(opp_table); + unsigned long temp = *bw; + struct dev_pm_opp *opp; + opp = _find_key_ceil(dev, &temp, index, true, _read_bw); + *bw = temp; return opp; } EXPORT_SYMBOL_GPL(dev_pm_opp_find_bw_ceil); @@ -773,41 +750,11 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_find_bw_ceil); struct dev_pm_opp *dev_pm_opp_find_bw_floor(struct device *dev, unsigned int *bw, int index) { - struct opp_table *opp_table; - struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE); - - if (!dev || !bw) { - dev_err(dev, "%s: Invalid argument bw=%p\n", __func__, bw); - return ERR_PTR(-EINVAL); - } - - opp_table = _find_opp_table(dev); - if (IS_ERR(opp_table)) - return ERR_CAST(opp_table); - - if (index >= opp_table->path_count) - return ERR_PTR(-EINVAL); - - mutex_lock(&opp_table->lock); - - list_for_each_entry(temp_opp, &opp_table->opp_list, node) { - if (temp_opp->available && temp_opp->bandwidth) { - /* go to the next node, before choosing prev */ - if (temp_opp->bandwidth[index].peak > *bw) - break; - opp = temp_opp; - } - } - - /* Increment the reference count of OPP */ - if (!IS_ERR(opp)) - dev_pm_opp_get(opp); - mutex_unlock(&opp_table->lock); - dev_pm_opp_put_opp_table(opp_table); - - if (!IS_ERR(opp)) - *bw = opp->bandwidth[index].peak; + unsigned long temp = *bw; + struct dev_pm_opp *opp; + opp = _find_key_floor(dev, &temp, index, true, _read_bw); + *bw = temp; return opp; } EXPORT_SYMBOL_GPL(dev_pm_opp_find_bw_floor); |