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* [PATCH] [5/5] ondemand governor default sampling downfactor as 1
@ 2005-05-18 20:40 Venkatesh Pallipadi
  0 siblings, 0 replies; only message in thread
From: Venkatesh Pallipadi @ 2005-05-18 20:40 UTC (permalink / raw)
  To: Dave Jones; +Cc: Alexander Clouter, cpufreq, Eric Piel, linux, Rajesh Shah


[PATCH] [5/5] ondemand governor default sampling downfactor as 1

Make default sampling downfactor 1.
This works better with earlier auto downscaling change in ondemand governor.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>

--- linux-2.6.11/drivers/cpufreq/cpufreq_ondemand.c.org	2005-03-11 19:41:12.000000000 -0800
+++ linux-2.6.11/drivers/cpufreq/cpufreq_ondemand.c	2005-03-11 19:43:00.000000000 -0800
@@ -51,7 +51,8 @@ static unsigned int 				def_sampling_rat
 #define MIN_SAMPLING_RATE			(def_sampling_rate / 2)
 #define MAX_SAMPLING_RATE			(500 * def_sampling_rate)
 #define DEF_SAMPLING_RATE_LATENCY_MULTIPLIER	(1000)
-#define DEF_SAMPLING_DOWN_FACTOR		(10)
+#define DEF_SAMPLING_DOWN_FACTOR		(1)
+#define MAX_SAMPLING_DOWN_FACTOR		(10)
 #define TRANSITION_LATENCY_LIMIT		(10 * 1000)
 #define sampling_rate_in_HZ(x)			(((x * HZ) < (1000 * 1000))?1:((x * HZ) / (1000 * 1000)))
 
@@ -119,6 +120,9 @@ static ssize_t store_sampling_down_facto
 	if (ret != 1 )
 		return -EINVAL;
 
+	if (input > MAX_SAMPLING_DOWN_FACTOR || input < 1)
+		return -EINVAL;
+
 	down(&dbs_sem);
 	dbs_tuners_ins.sampling_down_factor = input;
 	up(&dbs_sem);

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2005-05-18 20:40 [PATCH] [5/5] ondemand governor default sampling downfactor as 1 Venkatesh Pallipadi

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