diff options
Diffstat (limited to 'drivers/ata/libata-acpi.c')
| -rw-r--r-- | drivers/ata/libata-acpi.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index e01807a..f36284e 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -1025,14 +1025,46 @@ static void ata_acpi_remove_pm_notifier(struct ata_device *dev) } } +static void ata_acpi_register_power_resource(struct ata_device *dev) +{ + struct scsi_device *sdev = dev->sdev; + acpi_handle handle; + struct device *device; + + handle = ata_dev_acpi_handle(dev); + if (!handle) + return; + + device = &sdev->sdev_gendev; + + acpi_power_resource_register_device(device, handle); +} + +static void ata_acpi_unregister_power_resource(struct ata_device *dev) +{ + struct scsi_device *sdev = dev->sdev; + acpi_handle handle; + struct device *device; + + handle = ata_dev_acpi_handle(dev); + if (!handle) + return; + + device = &sdev->sdev_gendev; + + acpi_power_resource_unregister_device(device, handle); +} + void ata_acpi_bind(struct ata_device *dev) { ata_acpi_add_pm_notifier(dev); + ata_acpi_register_power_resource(dev); } void ata_acpi_unbind(struct ata_device *dev) { ata_acpi_remove_pm_notifier(dev); + ata_acpi_unregister_power_resource(dev); } static int compat_pci_ata(struct ata_port *ap) |