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PM / devfreq: Export devfreq_get_freq_range symbol within devfreq

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In order to get frequency range within devfreq governors,
export devfreq_get_freq_range symbol within devfreq.

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Johnson Wang <johnson.wang@mediatek.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
This commit is contained in:
Chanwoo Choi 2021-03-01 02:07:29 +09:00
parent 2e691421a2
commit 713472e53e
2 changed files with 14 additions and 8 deletions
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16
drivers/devfreq/devfreq.c
View File

@ -112,14 +112,14 @@ static unsigned long find_available_max_freq(struct devfreq *devfreq)
} }
/** /**
* get_freq_range() - Get the current freq range * devfreq_get_freq_range() - Get the current freq range
* @devfreq: the devfreq instance * @devfreq: the devfreq instance
* @min_freq: the min frequency * @min_freq: the min frequency
* @max_freq: the max frequency * @max_freq: the max frequency
* *
* This takes into consideration all constraints. * This takes into consideration all constraints.
*/ */
static void get_freq_range(struct devfreq *devfreq, void devfreq_get_freq_range(struct devfreq *devfreq,
unsigned long *min_freq, unsigned long *min_freq,
unsigned long *max_freq) unsigned long *max_freq)
{ {
@ -158,6 +158,7 @@ static void get_freq_range(struct devfreq *devfreq,
if (*min_freq > *max_freq) if (*min_freq > *max_freq)
*min_freq = *max_freq; *min_freq = *max_freq;
} }
EXPORT_SYMBOL(devfreq_get_freq_range);
/** /**
* devfreq_get_freq_level() - Lookup freq_table for the frequency * devfreq_get_freq_level() - Lookup freq_table for the frequency
@ -418,7 +419,7 @@ int devfreq_update_target(struct devfreq *devfreq, unsigned long freq)
err = devfreq->governor->get_target_freq(devfreq, &freq); err = devfreq->governor->get_target_freq(devfreq, &freq);
if (err) if (err)
return err; return err;
get_freq_range(devfreq, &min_freq, &max_freq); devfreq_get_freq_range(devfreq, &min_freq, &max_freq);
if (freq < min_freq) { if (freq < min_freq) {
freq = min_freq; freq = min_freq;
@ -785,6 +786,7 @@ struct devfreq *devfreq_add_device(struct device *dev,
{ {
struct devfreq *devfreq; struct devfreq *devfreq;
struct devfreq_governor *governor; struct devfreq_governor *governor;
unsigned long min_freq, max_freq;
int err = 0; int err = 0;
if (!dev || !profile || !governor_name) { if (!dev || !profile || !governor_name) {
@ -849,6 +851,8 @@ struct devfreq *devfreq_add_device(struct device *dev,
goto err_dev; goto err_dev;
} }
devfreq_get_freq_range(devfreq, &min_freq, &max_freq);
devfreq->suspend_freq = dev_pm_opp_get_suspend_opp_freq(dev); devfreq->suspend_freq = dev_pm_opp_get_suspend_opp_freq(dev);
devfreq->opp_table = dev_pm_opp_get_opp_table(dev); devfreq->opp_table = dev_pm_opp_get_opp_table(dev);
if (IS_ERR(devfreq->opp_table)) if (IS_ERR(devfreq->opp_table))
@ -1587,7 +1591,7 @@ static ssize_t min_freq_show(struct device *dev, struct device_attribute *attr,
unsigned long min_freq, max_freq; unsigned long min_freq, max_freq;
mutex_lock(&df->lock); mutex_lock(&df->lock);
get_freq_range(df, &min_freq, &max_freq); devfreq_get_freq_range(df, &min_freq, &max_freq);
mutex_unlock(&df->lock); mutex_unlock(&df->lock);
return sprintf(buf, "%lu\n", min_freq); return sprintf(buf, "%lu\n", min_freq);
@ -1641,7 +1645,7 @@ static ssize_t max_freq_show(struct device *dev, struct device_attribute *attr,
unsigned long min_freq, max_freq; unsigned long min_freq, max_freq;
mutex_lock(&df->lock); mutex_lock(&df->lock);
get_freq_range(df, &min_freq, &max_freq); devfreq_get_freq_range(df, &min_freq, &max_freq);
mutex_unlock(&df->lock); mutex_unlock(&df->lock);
return sprintf(buf, "%lu\n", max_freq); return sprintf(buf, "%lu\n", max_freq);
@ -1955,7 +1959,7 @@ static int devfreq_summary_show(struct seq_file *s, void *data)
mutex_lock(&devfreq->lock); mutex_lock(&devfreq->lock);
cur_freq = devfreq->previous_freq; cur_freq = devfreq->previous_freq;
get_freq_range(devfreq, &min_freq, &max_freq); devfreq_get_freq_range(devfreq, &min_freq, &max_freq);
timer = devfreq->profile->timer; timer = devfreq->profile->timer;
if (IS_SUPPORTED_ATTR(devfreq->governor->attrs, POLLING_INTERVAL)) if (IS_SUPPORTED_ATTR(devfreq->governor->attrs, POLLING_INTERVAL))

2
drivers/devfreq/governor.h
View File

@ -89,6 +89,8 @@ int devm_devfreq_add_governor(struct device *dev,
int devfreq_update_status(struct devfreq *devfreq, unsigned long freq); int devfreq_update_status(struct devfreq *devfreq, unsigned long freq);
int devfreq_update_target(struct devfreq *devfreq, unsigned long freq); int devfreq_update_target(struct devfreq *devfreq, unsigned long freq);
void devfreq_get_freq_range(struct devfreq *devfreq, unsigned long *min_freq,
unsigned long *max_freq);
static inline int devfreq_update_stats(struct devfreq *df) static inline int devfreq_update_stats(struct devfreq *df)
{ {