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-rw-r--r--drivers/acpi/pci_link.c31
-rw-r--r--drivers/acpi/thermal.c43
-rw-r--r--drivers/acpi/video.c14
3 files changed, 75 insertions, 13 deletions
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index 233c40c51684..89f3b2abfdc7 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -113,20 +113,23 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context)
switch (resource->type) {
case ACPI_RESOURCE_TYPE_START_DEPENDENT:
+ case ACPI_RESOURCE_TYPE_END_TAG:
return AE_OK;
case ACPI_RESOURCE_TYPE_IRQ:
{
struct acpi_resource_irq *p = &resource->data.irq;
if (!p || !p->interrupt_count) {
- printk(KERN_WARNING PREFIX "Blank IRQ resource\n");
+ ACPI_DEBUG_PRINT((ACPI_DB_INFO,
+ "Blank _PRS IRQ resource\n"));
return AE_OK;
}
for (i = 0;
(i < p->interrupt_count
&& i < ACPI_PCI_LINK_MAX_POSSIBLE); i++) {
if (!p->interrupts[i]) {
- printk(KERN_WARNING PREFIX "Invalid IRQ %d\n",
- p->interrupts[i]);
+ printk(KERN_WARNING PREFIX
+ "Invalid _PRS IRQ %d\n",
+ p->interrupts[i]);
continue;
}
link->irq.possible[i] = p->interrupts[i];
@@ -143,15 +146,16 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context)
&resource->data.extended_irq;
if (!p || !p->interrupt_count) {
printk(KERN_WARNING PREFIX
- "Blank EXT IRQ resource\n");
+ "Blank _PRS EXT IRQ resource\n");
return AE_OK;
}
for (i = 0;
(i < p->interrupt_count
&& i < ACPI_PCI_LINK_MAX_POSSIBLE); i++) {
if (!p->interrupts[i]) {
- printk(KERN_WARNING PREFIX "Invalid IRQ %d\n",
- p->interrupts[i]);
+ printk(KERN_WARNING PREFIX
+ "Invalid _PRS IRQ %d\n",
+ p->interrupts[i]);
continue;
}
link->irq.possible[i] = p->interrupts[i];
@@ -163,7 +167,8 @@ acpi_pci_link_check_possible(struct acpi_resource *resource, void *context)
break;
}
default:
- printk(KERN_ERR PREFIX "Resource is not an IRQ entry\n");
+ printk(KERN_ERR PREFIX "_PRS resource type 0x%x isn't an IRQ\n",
+ resource->type);
return AE_OK;
}
@@ -199,6 +204,9 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context)
switch (resource->type) {
+ case ACPI_RESOURCE_TYPE_START_DEPENDENT:
+ case ACPI_RESOURCE_TYPE_END_TAG:
+ return AE_OK;
case ACPI_RESOURCE_TYPE_IRQ:
{
struct acpi_resource_irq *p = &resource->data.irq;
@@ -208,7 +216,7 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context)
* particularly those those w/ _STA disabled
*/
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Blank IRQ resource\n"));
+ "Blank _CRS IRQ resource\n"));
return AE_OK;
}
*irq = p->interrupts[0];
@@ -224,7 +232,7 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context)
* return at least 1 IRQ
*/
printk(KERN_WARNING PREFIX
- "Blank EXT IRQ resource\n");
+ "Blank _CRS EXT IRQ resource\n");
return AE_OK;
}
*irq = p->interrupts[0];
@@ -232,10 +240,11 @@ acpi_pci_link_check_current(struct acpi_resource *resource, void *context)
}
break;
default:
- printk(KERN_ERR PREFIX "Resource %d isn't an IRQ\n", resource->type);
- case ACPI_RESOURCE_TYPE_END_TAG:
+ printk(KERN_ERR PREFIX "_CRS resource type 0x%x isn't an IRQ\n",
+ resource->type);
return AE_OK;
}
+
return AE_CTRL_TERMINATE;
}
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 84c795fb9b1e..9adfd180df6a 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,
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 64c889331f3b..e32b6c14d928 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -741,7 +741,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
max_level = acpi_video_init_brightness(device);
- if (device->cap._BCL && device->cap._BCM && device->cap._BQC && max_level > 0){
+ if (device->cap._BCL && device->cap._BCM && max_level > 0) {
int result;
static int count = 0;
char *name;
@@ -753,7 +753,17 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
device->backlight = backlight_device_register(name,
NULL, device, &acpi_backlight_ops);
device->backlight->props.max_brightness = device->brightness->count-3;
- device->backlight->props.brightness = acpi_video_get_brightness(device->backlight);
+ /*
+ * If there exists the _BQC object, the _BQC object will be
+ * called to get the current backlight brightness. Otherwise
+ * the brightness will be set to the maximum.
+ */
+ if (device->cap._BQC)
+ device->backlight->props.brightness =
+ acpi_video_get_brightness(device->backlight);
+ else
+ device->backlight->props.brightness =
+ device->backlight->props.max_brightness;
backlight_update_status(device->backlight);
kfree(name);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 13:16:18 +0000