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thermal: exynos: Make the zone handling use trip information

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This code simplifies the zone handling to use the trip information passed
by the TMU driver and not the hardcoded macros. This also helps in adding
more zone support.

Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Acked-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
This commit is contained in:
Amit Daniel Kachhap 2013-06-24 16:20:37 +05:30 committed by Eduardo Valentin
parent 23a3eb1062
commit 5c3cf5527e
3 changed files with 48 additions and 29 deletions
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69
drivers/thermal/samsung/exynos_thermal_common.c
View File

@ -79,17 +79,24 @@ static int exynos_set_mode(struct thermal_zone_device *thermal,
static int exynos_get_trip_type(struct thermal_zone_device *thermal, int trip,
enum thermal_trip_type *type)
{
switch (GET_ZONE(trip)) {
case MONITOR_ZONE:
case WARN_ZONE:
*type = THERMAL_TRIP_ACTIVE;
break;
case PANIC_ZONE:
*type = THERMAL_TRIP_CRITICAL;
break;
default:
struct exynos_thermal_zone *th_zone = thermal->devdata;
int max_trip = th_zone->sensor_conf->trip_data.trip_count;
int trip_type;
if (trip < 0 || trip >= max_trip)
return -EINVAL;
}
trip_type = th_zone->sensor_conf->trip_data.trip_type[trip];
if (trip_type == SW_TRIP)
*type = THERMAL_TRIP_CRITICAL;
else if (trip_type == THROTTLE_ACTIVE)
*type = THERMAL_TRIP_ACTIVE;
else if (trip_type == THROTTLE_PASSIVE)
*type = THERMAL_TRIP_PASSIVE;
else
return -EINVAL;
return 0;
}
@ -98,8 +105,9 @@ static int exynos_get_trip_temp(struct thermal_zone_device *thermal, int trip,
unsigned long *temp)
{
struct exynos_thermal_zone *th_zone = thermal->devdata;
int max_trip = th_zone->sensor_conf->trip_data.trip_count;
if (trip < GET_TRIP(MONITOR_ZONE) || trip > GET_TRIP(PANIC_ZONE))
if (trip < 0 || trip >= max_trip)
return -EINVAL;
*temp = th_zone->sensor_conf->trip_data.trip_val[trip];
@ -113,10 +121,10 @@ static int exynos_get_trip_temp(struct thermal_zone_device *thermal, int trip,
static int exynos_get_crit_temp(struct thermal_zone_device *thermal,
unsigned long *temp)
{
int ret;
/* Panic zone */
ret = exynos_get_trip_temp(thermal, GET_TRIP(PANIC_ZONE), temp);
return ret;
struct exynos_thermal_zone *th_zone = thermal->devdata;
int max_trip = th_zone->sensor_conf->trip_data.trip_count;
/* Get the temp of highest trip*/
return exynos_get_trip_temp(thermal, max_trip - 1, temp);
}
/* Bind callback functions for thermal zone */
@ -348,19 +356,28 @@ int exynos_register_thermal(struct thermal_sensor_conf *sensor_conf)
return -ENOMEM;
th_zone->sensor_conf = sensor_conf;
cpumask_set_cpu(0, &mask_val);
th_zone->cool_dev[0] = cpufreq_cooling_register(&mask_val);
if (IS_ERR(th_zone->cool_dev[0])) {
pr_err("Failed to register cpufreq cooling device\n");
ret = -EINVAL;
goto err_unregister;
/*
* TODO: 1) Handle multiple cooling devices in a thermal zone
* 2) Add a flag/name in cooling info to map to specific
* sensor
*/
if (sensor_conf->cooling_data.freq_clip_count > 0) {
cpumask_set_cpu(0, &mask_val);
th_zone->cool_dev[th_zone->cool_dev_size] =
cpufreq_cooling_register(&mask_val);
if (IS_ERR(th_zone->cool_dev[th_zone->cool_dev_size])) {
pr_err("Failed to register cpufreq cooling device\n");
ret = -EINVAL;
goto err_unregister;
}
th_zone->cool_dev_size++;
}
th_zone->cool_dev_size++;
th_zone->therm_dev = thermal_zone_device_register(sensor_conf->name,
EXYNOS_ZONE_COUNT, 0, th_zone, &exynos_dev_ops, NULL, 0,
sensor_conf->trip_data.trigger_falling ?
0 : IDLE_INTERVAL);
th_zone->therm_dev = thermal_zone_device_register(
sensor_conf->name, sensor_conf->trip_data.trip_count,
0, th_zone, &exynos_dev_ops, NULL, 0,
sensor_conf->trip_data.trigger_falling ? 0 :
IDLE_INTERVAL);
if (IS_ERR(th_zone->therm_dev)) {
pr_err("Failed to register thermal zone device\n");

3
drivers/thermal/samsung/exynos_thermal_common.h
View File

@ -42,8 +42,6 @@
#define GET_ZONE(trip) (trip + 2)
#define GET_TRIP(zone) (zone - 2)
#define EXYNOS_ZONE_COUNT 3
enum trigger_type {
THROTTLE_ACTIVE = 1,
THROTTLE_PASSIVE,
@ -69,6 +67,7 @@ struct freq_clip_table {
struct thermal_trip_point_conf {
int trip_val[MAX_TRIP_COUNT];
int trip_type[MAX_TRIP_COUNT];
int trip_count;
unsigned char trigger_falling;
};

5
drivers/thermal/samsung/exynos_tmu.c
View File

@ -509,9 +509,12 @@ static int exynos_tmu_probe(struct platform_device *pdev)
pdata->trigger_enable[1] + pdata->trigger_enable[2]+
pdata->trigger_enable[3];
for (i = 0; i < exynos_sensor_conf.trip_data.trip_count; i++)
for (i = 0; i < exynos_sensor_conf.trip_data.trip_count; i++) {
exynos_sensor_conf.trip_data.trip_val[i] =
pdata->threshold + pdata->trigger_levels[i];
exynos_sensor_conf.trip_data.trip_type[i] =
pdata->trigger_type[i];
}
exynos_sensor_conf.trip_data.trigger_falling = pdata->threshold_falling;