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>

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",