diff options
Diffstat (limited to 'drivers/ata/libata-acpi.c')
| -rw-r--r-- | drivers/ata/libata-acpi.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 4782e0f22d7f..15e18d50dcc6 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -246,6 +246,32 @@ void ata_acpi_bind_dev(struct ata_device *dev) } /** + * ata_acpi_dev_manage_restart - if the disk should be stopped (spun down) on + * system restart. + * @dev: target ATA device + * + * RETURNS: + * true if the disk should be stopped, otherwise false. + */ +bool ata_acpi_dev_manage_restart(struct ata_device *dev) +{ + struct device *tdev; + + /* + * If ATA_FLAG_ACPI_SATA is set, the acpi fwnode is attached to the + * ata_device instead of the ata_port. + */ + if (dev->link->ap->flags & ATA_FLAG_ACPI_SATA) + tdev = &dev->tdev; + else + tdev = &dev->link->ap->tdev; + + if (!is_acpi_device_node(tdev->fwnode)) + return false; + return acpi_bus_power_manageable(ACPI_HANDLE(tdev)); +} + +/** * ata_acpi_port_power_on - set the power state of the ata port to D0 * @ap: target ATA port * |