devfreq stats is not taking device suspend and resume into
account. Fix it.
Signed-off-by: Rajagopal Venkat <rajagopal.ven...@linaro.org>
---
drivers/devfreq/devfreq.c | 15 ++++++++++++---
1 file changed, 12 insertions(+), 3 deletions(-)
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 2843a22..4c50235 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -297,6 +297,7 @@ void devfreq_monitor_suspend(struct devfreq *devfreq)
return;
}
+ devfreq_update_status(devfreq, devfreq->previous_freq);
devfreq->stop_polling = true;
mutex_unlock(&devfreq->lock);
cancel_delayed_work_sync(&devfreq->work);
@@ -313,6 +314,8 @@ EXPORT_SYMBOL(devfreq_monitor_suspend);
*/
void devfreq_monitor_resume(struct devfreq *devfreq)
{
+ unsigned long freq;
+
mutex_lock(&devfreq->lock);
if (!devfreq->stop_polling)
goto out;
@@ -321,8 +324,14 @@ void devfreq_monitor_resume(struct devfreq *devfreq)
devfreq->profile->polling_ms)
queue_delayed_work(devfreq_wq, &devfreq->work,
msecs_to_jiffies(devfreq->profile->polling_ms));
+
+ devfreq->last_stat_updated = jiffies;
devfreq->stop_polling = false;
+ if (devfreq->profile->get_cur_freq &&
+ !devfreq->profile->get_cur_freq(devfreq->dev.parent, &freq))
+ devfreq->previous_freq = freq;
+
out:
mutex_unlock(&devfreq->lock);
}
@@ -931,11 +940,11 @@ static ssize_t show_trans_table(struct device *dev,
struct device_attribute *att
{
struct devfreq *devfreq = to_devfreq(dev);
ssize_t len;
- int i, j, err;
+ int i, j;
unsigned int max_state = devfreq->profile->max_state;
- err = devfreq_update_status(devfreq, devfreq->previous_freq);
- if (err)
+ if (!devfreq->stop_polling &&
+ devfreq_update_status(devfreq, devfreq->previous_freq))
return 0;
len = sprintf(buf, " From : To\n");
--
1.7.10.4
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