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Thermal: exynos: fix cooling state translation

Browse source 
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Tested-by: Amit Daniel kachhap <amit.daniel@samsung.com>
This commit is contained in:
Zhang Rui 2013-02-08 14:52:06 +08:00
commit 57df810693
4 changed files with 24 additions and 23 deletions
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11
drivers/thermal/cpu_cooling.c
View file

@ -196,6 +196,17 @@ static int get_property(unsigned int cpu, unsigned long input,
return -EINVAL;
}
unsigned long cpufreq_cooling_get_level(unsigned int cpu, unsigned int freq)
{
unsigned int val;
if (get_property(cpu, (unsigned long)freq, &val, GET_LEVEL))
return THERMAL_CSTATE_INVALID;
return (unsigned long)val;
}
EXPORT_SYMBOL(cpufreq_cooling_get_level);
/**
* get_cpu_frequency - get the absolute value of frequency from level.
* @cpu: cpu for which frequency is fetched.

24
drivers/thermal/exynos_thermal.c
View file

@ -242,26 +242,6 @@ static int exynos_get_crit_temp(struct thermal_zone_device *thermal,
return ret;
}
static int exynos_get_frequency_level(unsigned int cpu, unsigned int freq)
{
int i = 0, ret = -EINVAL;
struct cpufreq_frequency_table *table = NULL;
#ifdef CONFIG_CPU_FREQ
table = cpufreq_frequency_get_table(cpu);
#endif
if (!table)
return ret;
while (table[i].frequency != CPUFREQ_TABLE_END) {
if (table[i].frequency == CPUFREQ_ENTRY_INVALID)
continue;
if (table[i].frequency == freq)
return i;
i++;
}
return ret;
}
/* Bind callback functions for thermal zone */
static int exynos_bind(struct thermal_zone_device *thermal,
struct thermal_cooling_device *cdev)
@ -288,8 +268,8 @@ static int exynos_bind(struct thermal_zone_device *thermal,
/* Bind the thermal zone to the cpufreq cooling device */
for (i = 0; i < tab_size; i++) {
clip_data = (struct freq_clip_table *)&(tab_ptr[i]);
level = exynos_get_frequency_level(0, clip_data->freq_clip_max);
if (level < 0)
level = cpufreq_cooling_get_level(0, clip_data->freq_clip_max);
if (level == THERMAL_CSTATE_INVALID)
return 0;
switch (GET_ZONE(i)) {
case MONITOR_ZONE:

7
include/linux/cpu_cooling.h
View file

@ -42,6 +42,8 @@ struct thermal_cooling_device *cpufreq_cooling_register(
* @cdev: thermal cooling device pointer.
*/
void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev);
unsigned long cpufreq_cooling_get_level(unsigned int, unsigned int);
#else /* !CONFIG_CPU_THERMAL */
static inline struct thermal_cooling_device *cpufreq_cooling_register(
const struct cpumask *clip_cpus)
@ -53,6 +55,11 @@ static inline void cpufreq_cooling_unregister(
{
return;
}
static inline unsigned long cpufreq_cooling_get_level(unsigned int,
unsigned int)
{
return THERMAL_CSTATE_INVALID;
}
#endif /* CONFIG_CPU_THERMAL */
#endif /* __CPU_COOLING_H__ */

5
include/linux/thermal.h
View file

@ -33,8 +33,11 @@
#define THERMAL_MAX_TRIPS 12
#define THERMAL_NAME_LENGTH 20
/* invalid cooling state */
#define THERMAL_CSTATE_INVALID -1UL
/* No upper/lower limit requirement */
#define THERMAL_NO_LIMIT -1UL
#define THERMAL_NO_LIMIT THERMAL_CSTATE_INVALID
/* Unit conversion macros */
#define KELVIN_TO_CELSIUS(t) (long)(((long)t-2732 >= 0) ? \