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authorJacob Tanenbaum <jtanenba@redhat.com>2015-11-19 18:29:01 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-12-10 02:17:03 +0300
commit790d849bf811a8ab5d4cd2cce0f6fda92f6aebf2 (patch)
tree73e897ae3f06324f78fe1d7b3c02d84bcc96a58f /drivers/cpufreq/pcc-cpufreq.c
parent2f7e8a175db72bdaf377235962fd85796edb3fbc (diff)
downloadlinux-790d849bf811a8ab5d4cd2cce0f6fda92f6aebf2.tar.xz
cpufreq: pcc-cpufreq: update default value of cpuinfo_transition_latency
The cpufreq documentation specifies policy->cpuinfo.transition_latency the time it takes on this CPU to switch between two frequencies in nanoseconds (if appropriate, else specify CPUFREQ_ETERNAL) currently pcc-cpufreq does not expose the value and sets it to zero. I changed the pcc-cpufreq driver and it's documentation to conform to the default value specified in Documentation/cpu-freq/cpu-drivers.txt Signed-off-by: Jacob Tanenbaum <jtanenba@redhat.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/pcc-cpufreq.c')
-rw-r--r--drivers/cpufreq/pcc-cpufreq.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c
index 2a0d58959acf..808a320e9d5d 100644
--- a/drivers/cpufreq/pcc-cpufreq.c
+++ b/drivers/cpufreq/pcc-cpufreq.c
@@ -555,6 +555,8 @@ static int pcc_cpufreq_cpu_init(struct cpufreq_policy *policy)
policy->min = policy->cpuinfo.min_freq =
ioread32(&pcch_hdr->minimum_frequency) * 1000;
+ policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
+
pr_debug("init: policy->max is %d, policy->min is %d\n",
policy->max, policy->min);
out: