Messages in this thread Patch in this message | | | From | Punit Agrawal <> | Subject | [PATCH v5 2/3] cpufreq-dt: Supply power coefficient when registering cooling devices | Date | Tue, 17 Nov 2015 12:06:22 +0000 |
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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 <punit.agrawal@arm.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Javi Merino <javi.merino@arm.com> Cc: Eduardo Valentin <edubezval@gmail.com> --- drivers/cpufreq/cpufreq-dt.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c index 90d6408..1ceece9 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", -- 2.6.2
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