diff options
| author | Lin Ming <ming.m.lin@intel.com> | 2012-06-25 16:13:07 +0800 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@redhat.com> | 2012-06-29 11:38:15 -0400 |
| commit | a606dac368eed5696fb38e16b1394f1d049c09e9 (patch) | |
| tree | c65ac7fe74e7aadbdf36e5078f34bfb47a9f3333 /drivers | |
| parent | 3bd46600a7a7e938c54df8cdbac9910668c7dfb0 (diff) | |
libata-acpi: register/unregister device to/from power resource
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/power.c | 2 | ||||
| -rw-r--r-- | drivers/ata/libata-acpi.c | 32 |
2 files changed, 34 insertions, 0 deletions
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index dd6d6a3c6780..eb6408741a8f 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -390,6 +390,7 @@ void acpi_power_resource_unregister_device(struct device *dev, acpi_handle handl __acpi_power_resource_unregister_device(dev, list->handles[i]); } +EXPORT_SYMBOL_GPL(acpi_power_resource_unregister_device); static int __acpi_power_resource_register_device( struct acpi_power_managed_device *powered_device, acpi_handle handle) @@ -460,6 +461,7 @@ no_power_resource: printk(KERN_WARNING PREFIX "Invalid Power Resource to register!"); return -ENODEV; } +EXPORT_SYMBOL_GPL(acpi_power_resource_register_device); /** * acpi_device_sleep_wake - execute _DSW (Device Sleep Wake) or (deprecated in diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index e01807a1ef31..f36284e3290d 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) |