cpufreq: dbx500: Round to closest available freq
When reading the cpu speed, round it to the closest available
frequency from the table.
Signed-off-by: Mats Fagerstrom <mats.fagerstrom@stericsson.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c
index 15ed367..6ec6539 100644
--- a/drivers/cpufreq/dbx500-cpufreq.c
+++ b/drivers/cpufreq/dbx500-cpufreq.c
@@ -71,15 +71,15 @@
int i = 0;
unsigned long freq = clk_get_rate(armss_clk) / 1000;
- while (freq_table[i].frequency != CPUFREQ_TABLE_END) {
- if (freq <= freq_table[i].frequency)
+ /* The value is rounded to closest frequency in the defined table. */
+ while (freq_table[i + 1].frequency != CPUFREQ_TABLE_END) {
+ if (freq < freq_table[i].frequency +
+ (freq_table[i + 1].frequency - freq_table[i].frequency) / 2)
return freq_table[i].frequency;
i++;
}
- /* We could not find a corresponding frequency. */
- pr_err("dbx500-cpufreq: Failed to find cpufreq speed\n");
- return 0;
+ return freq_table[i].frequency;
}
static int __cpuinit dbx500_cpufreq_init(struct cpufreq_policy *policy)