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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-24 13:57:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-24 13:57:37 -0700
commit1481b9109fe771ec8b035d7760f42e36d2bed5d4 (patch)
treeabf3f6e7aa1aa98dc76ae8f04accc235918da53c /drivers/acpi/thermal.c
parent5042d99795d3d817bef2f4cc46e953bee9bf7398 (diff)
parentf88133d76ea38761b7379d6233b752ed82250a4a (diff)
Merge branch 'release-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-2.6
* 'release-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-acpi-2.6: acpi: fix crash in core ACPI code, triggered by CONFIG_ACPI_PCI_SLOT=y ACPI: thinkpad-acpi: don't misdetect in get_thinkpad_model_data() on -ENOMEM ACPI: thinkpad-acpi: bump up version to 0.21 ACPI: thinkpad-acpi: add bluetooth and WWAN rfkill support ACPI: thinkpad-acpi: WLSW overrides other rfkill switches ACPI: thinkpad-acpi: prepare for bluetooth and wwan rfkill support ACPI: thinkpad-acpi: consolidate wlsw notification function ACPI: thinkpad-acpi: minor refactor on radio switch init Revert "ACPI: don't walk tables if ACPI was disabled" Revert "dock: bay: Don't call acpi_walk_namespace() when ACPI is disabled." Revert "Fix FADT parsing" ACPI : Set FAN device to correct state in boot phase ACPI: Ignore _BQC object when registering backlight device ACPI: stop complaints about interrupt link End Tags and blank IRQ descriptors
Diffstat (limited to 'drivers/acpi/thermal.c')
-rw-r--r--drivers/acpi/thermal.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 30a34133793..912703691d3 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -769,6 +769,47 @@ static void acpi_thermal_run(unsigned long data)
acpi_os_execute(OSL_GPE_HANDLER, acpi_thermal_check, (void *)data);
}
+static void acpi_thermal_active_off(void *data)
+{
+ int result = 0;
+ struct acpi_thermal *tz = data;
+ int i = 0;
+ int j = 0;
+ struct acpi_thermal_active *active = NULL;
+
+ if (!tz) {
+ printk(KERN_ERR PREFIX "Invalid (NULL) context\n");
+ return;
+ }
+
+ result = acpi_thermal_get_temperature(tz);
+ if (result)
+ return;
+
+ for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++) {
+ active = &(tz->trips.active[i]);
+ if (!active || !active->flags.valid)
+ break;
+ if (tz->temperature >= active->temperature) {
+ /*
+ * If the thermal temperature is greater than the
+ * active threshod, unnecessary to turn off the
+ * the active cooling device.
+ */
+ continue;
+ }
+ /*
+ * Below Threshold?
+ * ----------------
+ * Turn OFF all cooling devices associated with this
+ * threshold.
+ */
+ for (j = 0; j < active->devices.count; j++)
+ result = acpi_bus_set_power(active->devices.handles[j],
+ ACPI_STATE_D3);
+ }
+}
+
static void acpi_thermal_check(void *data)
{
int result = 0;
@@ -1624,6 +1665,8 @@ static int acpi_thermal_add(struct acpi_device *device)
init_timer(&tz->timer);
+ acpi_thermal_active_off(tz);
+
acpi_thermal_check(tz);
status = acpi_install_notify_handler(device->handle,