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[RFC,1/5] cpufreq: stats: Allow small rounding errors

Message ID 1400106655-22465-2-git-send-email-soren.brinkmann@xilinx.com (mailing list archive)
State New, archived
Headers show

Commit Message

Soren Brinkmann May 14, 2014, 10:30 p.m. UTC
When matching a frequency against the freq_table, allow small deviances to
allow rounding errors. Rounding errors are likely to occur due to the
differenct frequency resolutions used in the common clock vs cpufreq
frameworks.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
---

 drivers/cpufreq/cpufreq_stats.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index ecaaebf969fc..37a34178ab3a 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -146,7 +146,7 @@  static int freq_table_get_index(struct cpufreq_stats *stat, unsigned int freq)
 {
 	int index;
 	for (index = 0; index < stat->max_state; index++)
-		if (stat->freq_table[index] == freq)
+		if (abs(stat->freq_table[index] - freq) < 2)
 			return index;
 	return -1;
 }