diff mbox series

[RESEND,4.4.y-cip,13/15] cpufreq-dt: Supply power coefficient when registering cooling devices

Message ID 20200604041745.28886-14-wens@csie.org (mailing list archive)
State Changes Requested
Headers show
Series PM / OPP v2 & cpufreq backports part 1 | expand

Commit Message

Chen-Yu Tsai June 4, 2020, 4:17 a.m. UTC 
From: Punit Agrawal <punit.agrawal@arm.com>

commit f8fa8ae06b8c2c25d81c99766f9226adc5c3e073 upstream.

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>
Signed-off-by: Chen-Yu Tsai (Moxa) <wens@csie.org>
---
 drivers/cpufreq/cpufreq-dt.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index 90d64081ddb34..1ceece9d67112 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",