[PATCH v5 1/3] thermal: mediatek: Add cpu dynamic power cooling model.
From: Dawei Chien
Date: Tue Dec 15 2015 - 23:00:43 EST
MT8173 cpufreq driver select of_cpufreq_power_cooling_register registering
cooling devices with dynamic power coefficient.
Signed-off-by: Dawei Chien <dawei.chien@xxxxxxxxxxxx>
---
This patch is base on patchset:
https://lkml.org/lkml/2015/11/17/251
---
drivers/cpufreq/mt8173-cpufreq.c | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/cpufreq/mt8173-cpufreq.c b/drivers/cpufreq/mt8173-cpufreq.c
index 83001dc..d00bab5 100644
--- a/drivers/cpufreq/mt8173-cpufreq.c
+++ b/drivers/cpufreq/mt8173-cpufreq.c
@@ -263,17 +263,24 @@ static int mtk_cpufreq_set_target(struct cpufreq_policy *policy,
return 0;
}
+#define DYNAMIC_POWER "dynamic-power-coefficient"
+
static void mtk_cpufreq_ready(struct cpufreq_policy *policy)
{
struct mtk_cpu_dvfs_info *info = policy->driver_data;
struct device_node *np = of_node_get(info->cpu_dev->of_node);
+ u32 capacitance = 0;
if (WARN_ON(!np))
return;
if (of_find_property(np, "#cooling-cells", NULL)) {
- info->cdev = of_cpufreq_cooling_register(np,
- policy->related_cpus);
+ of_property_read_u32(np, DYNAMIC_POWER, &capacitance);
+
+ info->cdev = of_cpufreq_power_cooling_register(np,
+ policy->related_cpus,
+ capacitance,
+ NULL);
if (IS_ERR(info->cdev)) {
dev_err(info->cpu_dev,
--
1.7.9.5
--
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