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path: root/drivers/acpi/thermal.c
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Diffstat (limited to 'drivers/acpi/thermal.c')
-rw-r--r--drivers/acpi/thermal.c57
1 files changed, 35 insertions, 22 deletions
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 912703691d3..ad6cae938f0 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -246,18 +246,18 @@ static const struct file_operations acpi_thermal_polling_fops = {
static int acpi_thermal_get_temperature(struct acpi_thermal *tz)
{
acpi_status status = AE_OK;
-
+ unsigned long long tmp;
if (!tz)
return -EINVAL;
tz->last_temperature = tz->temperature;
- status =
- acpi_evaluate_integer(tz->device->handle, "_TMP", NULL, &tz->temperature);
+ status = acpi_evaluate_integer(tz->device->handle, "_TMP", NULL, &tmp);
if (ACPI_FAILURE(status))
return -ENODEV;
+ tz->temperature = tmp;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Temperature is %lu dK\n",
tz->temperature));
@@ -267,17 +267,16 @@ static int acpi_thermal_get_temperature(struct acpi_thermal *tz)
static int acpi_thermal_get_polling_frequency(struct acpi_thermal *tz)
{
acpi_status status = AE_OK;
-
+ unsigned long long tmp;
if (!tz)
return -EINVAL;
- status =
- acpi_evaluate_integer(tz->device->handle, "_TZP", NULL,
- &tz->polling_frequency);
+ status = acpi_evaluate_integer(tz->device->handle, "_TZP", NULL, &tmp);
if (ACPI_FAILURE(status))
return -ENODEV;
+ tz->polling_frequency = tmp;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Polling frequency is %lu dS\n",
tz->polling_frequency));
@@ -356,6 +355,7 @@ do { \
static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
{
acpi_status status = AE_OK;
+ unsigned long long tmp;
struct acpi_handle_list devices;
int valid = 0;
int i;
@@ -363,7 +363,8 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
/* Critical Shutdown (required) */
if (flag & ACPI_TRIPS_CRITICAL) {
status = acpi_evaluate_integer(tz->device->handle,
- "_CRT", NULL, &tz->trips.critical.temperature);
+ "_CRT", NULL, &tmp);
+ tz->trips.critical.temperature = tmp;
/*
* Treat freezing temperatures as invalid as well; some
* BIOSes return really low values and cause reboots at startup.
@@ -388,10 +389,12 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
} else if (crt > 0) {
unsigned long crt_k = CELSIUS_TO_KELVIN(crt);
/*
- * Allow override to lower critical threshold
+ * Allow override critical threshold
*/
- if (crt_k < tz->trips.critical.temperature)
- tz->trips.critical.temperature = crt_k;
+ if (crt_k > tz->trips.critical.temperature)
+ printk(KERN_WARNING PREFIX
+ "Critical threshold %d C\n", crt);
+ tz->trips.critical.temperature = crt_k;
}
}
}
@@ -399,12 +402,13 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
/* Critical Sleep (optional) */
if (flag & ACPI_TRIPS_HOT) {
status = acpi_evaluate_integer(tz->device->handle,
- "_HOT", NULL, &tz->trips.hot.temperature);
+ "_HOT", NULL, &tmp);
if (ACPI_FAILURE(status)) {
tz->trips.hot.flags.valid = 0;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"No hot threshold\n"));
} else {
+ tz->trips.hot.temperature = tmp;
tz->trips.hot.flags.valid = 1;
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
"Found hot threshold [%lu]\n",
@@ -418,33 +422,40 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
if (psv == -1) {
status = AE_SUPPORT;
} else if (psv > 0) {
- tz->trips.passive.temperature = CELSIUS_TO_KELVIN(psv);
+ tmp = CELSIUS_TO_KELVIN(psv);
status = AE_OK;
} else {
status = acpi_evaluate_integer(tz->device->handle,
- "_PSV", NULL, &tz->trips.passive.temperature);
+ "_PSV", NULL, &tmp);
}
if (ACPI_FAILURE(status))
tz->trips.passive.flags.valid = 0;
else {
+ tz->trips.passive.temperature = tmp;
tz->trips.passive.flags.valid = 1;
if (flag == ACPI_TRIPS_INIT) {
status = acpi_evaluate_integer(
tz->device->handle, "_TC1",
- NULL, &tz->trips.passive.tc1);
+ NULL, &tmp);
if (ACPI_FAILURE(status))
tz->trips.passive.flags.valid = 0;
+ else
+ tz->trips.passive.tc1 = tmp;
status = acpi_evaluate_integer(
tz->device->handle, "_TC2",
- NULL, &tz->trips.passive.tc2);
+ NULL, &tmp);
if (ACPI_FAILURE(status))
tz->trips.passive.flags.valid = 0;
+ else
+ tz->trips.passive.tc2 = tmp;
status = acpi_evaluate_integer(
tz->device->handle, "_TSP",
- NULL, &tz->trips.passive.tsp);
+ NULL, &tmp);
if (ACPI_FAILURE(status))
tz->trips.passive.flags.valid = 0;
+ else
+ tz->trips.passive.tsp = tmp;
}
}
}
@@ -479,7 +490,7 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
if (flag & ACPI_TRIPS_ACTIVE) {
status = acpi_evaluate_integer(tz->device->handle,
- name, NULL, &tz->trips.active[i].temperature);
+ name, NULL, &tmp);
if (ACPI_FAILURE(status)) {
tz->trips.active[i].flags.valid = 0;
if (i == 0)
@@ -500,8 +511,10 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
tz->trips.active[i - 2].temperature :
CELSIUS_TO_KELVIN(act));
break;
- } else
+ } else {
+ tz->trips.active[i].temperature = tmp;
tz->trips.active[i].flags.valid = 1;
+ }
}
name[2] = 'L';
@@ -1213,8 +1226,8 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
acpi_bus_private_data_handler,
tz->thermal_zone);
if (ACPI_FAILURE(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error attaching device data\n"));
+ printk(KERN_ERR PREFIX
+ "Error attaching device data\n");
return -ENODEV;
}
@@ -1647,7 +1660,7 @@ static int acpi_thermal_add(struct acpi_device *device)
strcpy(tz->name, device->pnp.bus_id);
strcpy(acpi_device_name(device), ACPI_THERMAL_DEVICE_NAME);
strcpy(acpi_device_class(device), ACPI_THERMAL_CLASS);
- acpi_driver_data(device) = tz;
+ device->driver_data = tz;
mutex_init(&tz->lock);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-28 23:10:03 +0000