@@ -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 @@ int acpi_power_resource_register_device(struct device *dev, acpi_handle handle)
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
@@ -1014,14 +1014,46 @@ 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 is_pci_ata(struct device *dev)
Signed-off-by: Lin Ming <ming.m.lin@intel.com> --- drivers/acpi/power.c | 2 ++ drivers/ata/libata-acpi.c | 32 ++++++++++++++++++++++++++++++++ 2 files changed, 34 insertions(+), 0 deletions(-)