diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/ac.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 1461dc9944a..30238f6ff23 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -59,6 +59,7 @@ static int acpi_ac_open_fs(struct inode *inode, struct file *file); static int acpi_ac_add(struct acpi_device *device); static int acpi_ac_remove(struct acpi_device *device, int type); +static int acpi_ac_resume(struct acpi_device *device); const static struct acpi_device_id ac_device_ids[] = { {"ACPI0003", 0}, @@ -73,6 +74,7 @@ static struct acpi_driver acpi_ac_driver = { .ops = { .add = acpi_ac_add, .remove = acpi_ac_remove, + .resume = acpi_ac_resume, }, }; @@ -307,6 +309,21 @@ static int acpi_ac_add(struct acpi_device *device) return result; } +static int acpi_ac_resume(struct acpi_device *device) +{ + struct acpi_ac *ac; + unsigned old_state; + if (!device || !acpi_driver_data(device)) + return -EINVAL; + ac = acpi_driver_data(device); + old_state = ac->state; + if (acpi_ac_get_state(ac)) + return 0; + if (old_state != ac->state) + kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); + return 0; +} + static int acpi_ac_remove(struct acpi_device *device, int type) { acpi_status status = AE_OK; |