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authorPrakash, Prashanth <pprakash@codeaurora.org>2016-08-16 14:39:41 -0600
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-08-31 01:02:33 +0200
commitbe8b88d7d9877114172b32817d8eb3e85d3d8f99 (patch)
tree46cfd3c473ffcf900680952a437d137355eef6a2 /drivers/cpufreq
parent80b8286aeec056d21bffed2d1ece3904516e9c91 (diff)
downloadlinux-be8b88d7d9877114172b32817d8eb3e85d3d8f99.tar.bz2
ACPI / CPPC: set a non-zero value for transition_latency
Compute the expected transition latency for frequency transitions using the values from the PCCT tables when the desired perf register is in PCC. Signed-off-by: Prashanth Prakash <pprakash@codeaurora.org> Reviewed-by: Alexey Klimov <alexey.klimov@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq')
-rw-r--r--drivers/cpufreq/cppc_cpufreq.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c
index 8882b8e2ecd0..e6a33596dea3 100644
--- a/drivers/cpufreq/cppc_cpufreq.c
+++ b/drivers/cpufreq/cppc_cpufreq.c
@@ -98,6 +98,7 @@ static int cppc_cpufreq_cpu_init(struct cpufreq_policy *policy)
policy->max = cpu->perf_caps.highest_perf;
policy->cpuinfo.min_freq = policy->min;
policy->cpuinfo.max_freq = policy->max;
+ policy->cpuinfo.transition_latency = cppc_get_transition_latency(cpu_num);
policy->shared_type = cpu->shared_type;
if (policy->shared_type == CPUFREQ_SHARED_TYPE_ANY)