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authorStefan Wahren <stefan.wahren@i2se.com>2014-10-17 22:09:48 +0000
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2014-11-06 01:27:32 +0100
commit0a1e879d353f6f6e661d14c6a0e42dd19efbc504 (patch)
tree5c0fda82791730f5e6d6ad49979ad9b5cbd13990 /drivers/cpufreq/cpufreq-dt.c
parenta0a22cf14472fa5cd44c8d107eba1a827df9549c (diff)
downloadlinux-0a1e879d353f6f6e661d14c6a0e42dd19efbc504.tar.bz2
cpufreq: cpufreq-dt: Improve debug about matching OPP
During test of new DT OPPs it's very helpful to print the matching OPP in case of frequency change. So it will be easier to find frequency rounding issues in the dts file. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/cpufreq-dt.c')
-rw-r--r--drivers/cpufreq/cpufreq-dt.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index f657c571b18e..725fb1d86578 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -58,6 +58,8 @@ static int set_target(struct cpufreq_policy *policy, unsigned int index)
old_freq = clk_get_rate(cpu_clk) / 1000;
if (!IS_ERR(cpu_reg)) {
+ unsigned long opp_freq;
+
rcu_read_lock();
opp = dev_pm_opp_find_freq_ceil(cpu_dev, &freq_Hz);
if (IS_ERR(opp)) {
@@ -67,9 +69,12 @@ static int set_target(struct cpufreq_policy *policy, unsigned int index)
return PTR_ERR(opp);
}
volt = dev_pm_opp_get_voltage(opp);
+ opp_freq = dev_pm_opp_get_freq(opp);
rcu_read_unlock();
tol = volt * priv->voltage_tolerance / 100;
volt_old = regulator_get_voltage(cpu_reg);
+ dev_dbg(cpu_dev, "Found OPP: %ld kHz, %ld uV\n",
+ opp_freq / 1000, volt);
}
dev_dbg(cpu_dev, "%u MHz, %ld mV --> %u MHz, %ld mV\n",