redonkable/alistair23-linux
redonkable/alistair23-linux
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Pull thermal into release branch

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This commit is contained in:
Len Brown 2007-10-10 00:29:40 -04:00
parent 73a855f70d 6e2157858a
commit a2883dfa2e
1 changed files with 18 additions and 10 deletions
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28
drivers/acpi/thermal.c
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@ -195,6 +195,7 @@ struct acpi_thermal {
struct acpi_thermal_trips trips;
struct acpi_handle_list devices;
struct timer_list timer;
struct mutex lock;
};
static const struct file_operations acpi_thermal_state_fops = {
@ -711,6 +712,7 @@ static void acpi_thermal_check(void *data)
int result = 0;
struct acpi_thermal *tz = data;
unsigned long sleep_time = 0;
unsigned long timeout_jiffies = 0;
int i = 0;
struct acpi_thermal_state state;
@ -720,11 +722,15 @@ static void acpi_thermal_check(void *data)
return;
}
/* Check if someone else is already running */
if (!mutex_trylock(&tz->lock))
return;
state = tz->state;
result = acpi_thermal_get_temperature(tz);
if (result)
return;
goto unlock;
memset(&tz->state, 0, sizeof(tz->state));
@ -787,10 +793,13 @@ static void acpi_thermal_check(void *data)
* a thermal event occurs). Note that _TSP and _TZD values are
* given in 1/10th seconds (we must covert to milliseconds).
*/
if (tz->state.passive)
if (tz->state.passive) {
sleep_time = tz->trips.passive.tsp * 100;
else if (tz->polling_frequency > 0)
timeout_jiffies = jiffies + (HZ * sleep_time) / 1000;
} else if (tz->polling_frequency > 0) {
sleep_time = tz->polling_frequency * 100;
timeout_jiffies = round_jiffies(jiffies + (HZ * sleep_time) / 1000);
}
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: temperature[%lu] sleep[%lu]\n",
tz->name, tz->temperature, sleep_time));
@ -804,17 +813,16 @@ static void acpi_thermal_check(void *data)
del_timer(&(tz->timer));
} else {
if (timer_pending(&(tz->timer)))
mod_timer(&(tz->timer),
jiffies + (HZ * sleep_time) / 1000);
mod_timer(&(tz->timer), timeout_jiffies);
else {
tz->timer.data = (unsigned long)tz;
tz->timer.function = acpi_thermal_run;
tz->timer.expires = jiffies + (HZ * sleep_time) / 1000;
tz->timer.expires = timeout_jiffies;
add_timer(&(tz->timer));
}
}
return;
unlock:
mutex_unlock(&tz->lock);
}
/* --------------------------------------------------------------------------
@ -1251,7 +1259,7 @@ static int acpi_thermal_add(struct acpi_device *device)
strcpy(acpi_device_name(device), ACPI_THERMAL_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_THERMAL_CLASS);
acpi_driver_data(device) = tz;
mutex_init(&tz->lock);
result = acpi_thermal_get_info(tz);
if (result)
goto end;
@ -1321,7 +1329,7 @@ static int acpi_thermal_remove(struct acpi_device *device, int type)
}
acpi_thermal_remove_fs(device);
mutex_destroy(&tz->lock);
kfree(tz);
return 0;
}