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cpufreq: rockchip: implement rockchip_cpufreq_check_rate_volt()

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Change-Id: I707c88d217725e66119aa28e8823ce68ac3abfba
Signed-off-by: Finley Xiao <finley.xiao@rock-chips.com>
This commit is contained in:
Finley Xiao
2018-06-26 22:15:30 +08:00
committed by Tao Huang
parent 87c0821959
commit e7040c8dd6
3 changed files with 26 additions and 7 deletions
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10
drivers/cpufreq/cpufreq-dt.c
View File

@@ -32,8 +32,6 @@
#include <soc/rockchip/rockchip_opp_select.h>
#endif
#define MAX_CLUSTERS 2
struct private_data {
struct device *cpu_dev;
struct thermal_cooling_device *cdev;
@@ -161,7 +159,6 @@ static int cpufreq_init(struct cpufreq_policy *policy)
bool opp_v1 = false;
const char *name;
int ret, scale;
static int check_init;
cpu_dev = get_cpu_device(policy->cpu);
if (!cpu_dev) {
@@ -312,10 +309,9 @@ static int cpufreq_init(struct cpufreq_policy *policy)
policy->up_transition_delay_us = transition_latency / NSEC_PER_USEC;
policy->down_transition_delay_us = 50000; /* 50ms */
if (check_init < MAX_CLUSTERS) {
dev_pm_opp_check_rate_volt(cpu_dev, true);
check_init++;
}
#ifdef CONFIG_ARCH_ROCKCHIP
rockchip_cpufreq_check_rate_volt(cpu_dev);
#endif
return 0;

17
drivers/cpufreq/rockchip-cpufreq.c
View File

@@ -48,6 +48,7 @@ struct cluster_info {
bool offline;
bool rebooting;
bool freq_limit;
bool is_check_init;
};
static LIST_HEAD(cluster_info_list);
@@ -172,6 +173,22 @@ int rockchip_cpufreq_set_scale_rate(struct device *dev, unsigned long rate)
}
EXPORT_SYMBOL_GPL(rockchip_cpufreq_set_scale_rate);
int rockchip_cpufreq_check_rate_volt(struct device *dev)
{
struct cluster_info *cluster;
cluster = rockchip_cluster_lookup_by_dev(dev);
if (!cluster)
return -EINVAL;
if (cluster->is_check_init)
return 0;
dev_pm_opp_check_rate_volt(dev, true);
cluster->is_check_init = true;
return 0;
}
EXPORT_SYMBOL_GPL(rockchip_cpufreq_check_rate_volt);
static int rockchip_cpufreq_cluster_init(int cpu, struct cluster_info *cluster)
{
struct device_node *np;

6
include/linux/cpufreq.h
View File

@@ -699,6 +699,7 @@ unsigned long cpufreq_scale_max_freq_capacity(int cpu);
unsigned int rockchip_cpufreq_adjust_target(int cpu, unsigned int freq);
int rockchip_cpufreq_get_scale(int cpu);
int rockchip_cpufreq_set_scale_rate(struct device *dev, unsigned long rate);
int rockchip_cpufreq_check_rate_volt(struct device *dev);
#else
static inline unsigned int rockchip_cpufreq_adjust_target(int cpu,
unsigned int freq)
@@ -716,5 +717,10 @@ static inline int rockchip_cpufreq_set_scale_rate(struct device *dev,
{
return -EINVAL;
}
static inline int rockchip_cpufreq_check_rate_volt(struct device *dev)
{
return -EINVAL;
}
#endif
#endif /* _LINUX_CPUFREQ_H */