cpufreq: ondemand: Set MIN_FREQUENCY_UP_THRESHOLD to 1

Currently the minimal up_threshold is 11, and user may want to
use a smaller minimal up_threshold for performance tuning,
so MIN_FREQUENCY_UP_THRESHOLD could be set to 1 because:

1. Current systems wouldn't be affected as they have already
   a value >= 11.
2. New systems with a default kernel would keep still the default
   value that is >= 11.

Users now have the advantage that they can make their own decisions
and customize the 'trip point' to switch to the max frequency.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=65501
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 1e2bd9851fba3f49973d850e662c1f84e109452d..4a017e8952962c5f8f20a4c924905b7e618da157 100644 (file)
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -25,7 +25,7 @@
 #define MAX_SAMPLING_DOWN_FACTOR               (100000)
 #define MICRO_FREQUENCY_UP_THRESHOLD           (95)
 #define MICRO_FREQUENCY_MIN_SAMPLE_RATE                (10000)
-#define MIN_FREQUENCY_UP_THRESHOLD             (11)
+#define MIN_FREQUENCY_UP_THRESHOLD             (1)
 #define MAX_FREQUENCY_UP_THRESHOLD             (100)
 
 static struct od_ops od_ops;