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cpufreq-dt: Supply power coefficient when registering cooling devices

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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 <[email protected]>
Acked-by: Viresh Kumar <[email protected]>
Reviewed-by: Javi Merino <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
This commit is contained in:
Punit Agrawal 2015-11-17 12:06:22 +00:00 • committed by Rafael J. Wysocki
commit f8fa8ae06b
1 changed files with 7 additions and 2 deletions
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9
drivers/cpufreq/cpufreq-dt.c
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@ -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",