PM / devfreq: add min/max_freq limit requested by users.

The frequency requested to devfreq device driver from devfreq governors
is restricted by min_freq and max_freq input.

Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/devfreq/governor_performance.c b/drivers/devfreq/governor_performance.c
index c0596b291761..574a06b1b1de 100644
--- a/drivers/devfreq/governor_performance.c
+++ b/drivers/devfreq/governor_performance.c
@@ -18,7 +18,10 @@ static int devfreq_performance_func(struct devfreq *df,
          * target callback should be able to get floor value as
          * said in devfreq.h
          */
-        *freq = UINT_MAX;
+        if (!df->max_freq)
+                *freq = UINT_MAX;
+        else
+                *freq = df->max_freq;
         return 0;
 }