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path: root/drivers/acpi/device_pm.c
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Diffstat (limited to 'drivers/acpi/device_pm.c')
-rw-r--r--drivers/acpi/device_pm.c12
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 08bb9f2f2d23..5e4a8860a9c0 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -1314,9 +1314,19 @@ static void acpi_dev_pm_detach(struct device *dev, bool power_off)
*/
int acpi_dev_pm_attach(struct device *dev, bool power_on)
{
+ /*
+ * Skip devices whose ACPI companions match the device IDs below,
+ * because they require special power management handling incompatible
+ * with the generic ACPI PM domain.
+ */
+ static const struct acpi_device_id special_pm_ids[] = {
+ {"PNP0C0B", }, /* Generic ACPI fan */
+ {"INT3404", }, /* Fan */
+ {}
+ };
struct acpi_device *adev = ACPI_COMPANION(dev);
- if (!adev)
+ if (!adev || !acpi_match_device_ids(adev, special_pm_ids))
return 0;
/*