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authorPunit Agrawal <punit.agrawal@arm.com>2015-11-17 12:06:22 +0000
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-12-10 00:14:58 +0100
commitf8fa8ae06b8c2c25d81c99766f9226adc5c3e073 (patch)
tree4c2b761f47ee1261e969e5e5e2eb8d1c74a94cdb /drivers/cpufreq/cpufreq-dt.c
parent3be3f8f36e7349006f19c8c8f0d686e98462a993 (diff)
downloadlinux-f8fa8ae06b8c2c25d81c99766f9226adc5c3e073.tar.bz2
cpufreq-dt: Supply power coefficient when registering cooling devices
Support registering cooling devices with dynamic power coefficient where provided by the device tree. This allows OF registered cooling devices driver to be used with the power_allocator thermal governor. Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Javi Merino <javi.merino@arm.com> 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.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index 90d64081ddb3..1ceece9d6711 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -407,8 +407,13 @@ static void cpufreq_ready(struct cpufreq_policy *policy)
* thermal DT code takes care of matching them.
*/
if (of_find_property(np, "#cooling-cells", NULL)) {
- priv->cdev = of_cpufreq_cooling_register(np,
- policy->related_cpus);
+ u32 power_coefficient = 0;
+
+ of_property_read_u32(np, "dynamic-power-coefficient",
+ &power_coefficient);
+
+ priv->cdev = of_cpufreq_power_cooling_register(np,
+ policy->related_cpus, power_coefficient, NULL);
if (IS_ERR(priv->cdev)) {
dev_err(priv->cpu_dev,
"running cpufreq without cooling device: %ld\n",