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[PATCH v3 2/3] 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 <punit.agrawal@arm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
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 7c0d70e..4434e45 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",
-- 
2.5.3

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Thread

[PATCH v3 0/3] Dynamic power model from device tree Punit Agrawal <punit.agrawal@arm.com> - 2015-11-09 18:30 +0100
  [PATCH v3 2/3] cpufreq-dt: Supply power coefficient when registering cooling devices Punit Agrawal <punit.agrawal@arm.com> - 2015-11-09 18:40 +0100
    Re: [PATCH v3 2/3] cpufreq-dt: Supply power coefficient when  registering cooling devices Javi Merino <javi.merino@arm.com> - 2015-11-10 13:30 +0100
  [PATCH v3 1/3] devicetree: bindings: Add optional dynamic-power-coefficient property Punit Agrawal <punit.agrawal@arm.com> - 2015-11-09 18:40 +0100
    Re: [PATCH v3 1/3] devicetree: bindings: Add optional  dynamic-power-coefficient property Rob Herring <robh@kernel.org> - 2015-11-09 18:50 +0100
      Re: [PATCH v3 1/3] devicetree: bindings: Add optional dynamic-power-coefficient property Punit Agrawal <punit.agrawal@arm.com> - 2015-11-09 19:50 +0100
  [PATCH v3 3/3] cpufreq: arm_big_little: Add support to register a cpufreq cooling device Punit Agrawal <punit.agrawal@arm.com> - 2015-11-09 18:40 +0100
    Re: [PATCH v3 3/3] cpufreq: arm_big_little: Add support to register  a cpufreq cooling device Javi Merino <javi.merino@arm.com> - 2015-11-10 13:40 +0100
    Re: [PATCH v3 3/3] cpufreq: arm_big_little: Add support to register  a cpufreq cooling device Viresh Kumar <viresh.kumar@linaro.org> - 2015-11-13 06:00 +0100

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