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cpufreq: dt: Add support to get static power

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Change-Id: I1d69fa83c039a5487571901da9b1d3baa3bea3ea
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
This commit is contained in:
Finley Xiao
2018-11-30 20:24:57 +08:00
committed by Tao Huang
parent 039fa1a285
commit e51ed31ccd
1 changed files with 42 additions and 0 deletions
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42
drivers/cpufreq/cpufreq-dt.c
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@@ -29,6 +29,7 @@
#include <linux/slab.h>
#include <linux/thermal.h>
#ifdef CONFIG_ARCH_ROCKCHIP
#include <soc/rockchip/rockchip_ipa.h>
#include <soc/rockchip/rockchip_opp_select.h>
#endif
@@ -45,6 +46,7 @@ struct private_data {
struct thermal_cooling_device *cdev;
#ifdef CONFIG_ARCH_ROCKCHIP
struct thermal_opp_info *opp_info;
struct ipa_power_model_data *model_data;
#endif
const char *reg_name;
};
@@ -377,10 +379,34 @@ static int cpufreq_exit(struct cpufreq_policy *policy)
return 0;
}
#ifdef CONFIG_ARCH_ROCKCHIP
static int cpufreq_get_static_power(cpumask_t *cpumask, int interval,
unsigned long voltage, u32 *power)
{
int cpu = cpumask_first_and(cpumask, cpu_online_mask);
struct cpufreq_policy *policy;
struct private_data *priv;
policy = cpufreq_cpu_get(cpu);
if (!policy) {
*power = 0;
return 0;
}
priv = policy->driver_data;
/* Voltage in mV */
*power = rockchip_ipa_get_static_power(priv->model_data,
voltage / 1000);
cpufreq_cpu_put(policy);
return 0;
}
#endif
static void cpufreq_ready(struct cpufreq_policy *policy)
{
struct private_data *priv = policy->driver_data;
struct device_node *np = of_node_get(priv->cpu_dev->of_node);
int ret;
if (WARN_ON(!np))
return;
@@ -395,8 +421,24 @@ static void cpufreq_ready(struct cpufreq_policy *policy)
of_property_read_u32(np, "dynamic-power-coefficient",
&power_coefficient);
#ifdef CONFIG_ARCH_ROCKCHIP
ret = rockchip_ipa_power_model_init(priv->cpu_dev,
&priv->model_data);
if (!ret) {
rockchip_of_get_leakage(priv->cpu_dev, "cpu_leakage",
&priv->model_data->leakage);
priv->cdev = of_cpufreq_power_cooling_register(np,
policy->related_cpus, power_coefficient,
cpufreq_get_static_power);
} else {
priv->cdev = of_cpufreq_power_cooling_register(np,
policy->related_cpus, power_coefficient,
NULL);
}
#else
priv->cdev = of_cpufreq_power_cooling_register(np,
policy->related_cpus, power_coefficient, NULL);
#endif
if (IS_ERR(priv->cdev)) {
dev_err(priv->cpu_dev,
"running cpufreq without cooling device: %ld\n",