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Commit a606dac3 authored by Lin Ming's avatar Lin Ming Committed by Jeff Garzik
Browse files

libata-acpi: register/unregister device to/from power resource 



Signed-off-by: default avatarLin Ming <ming.m.lin@intel.com>
Signed-off-by: default avatarJeff Garzik <jgarzik@redhat.com>
parent 3bd46600

drivers/acpi/power.c

+2 −0
Original line number Diff line number Diff line
@@ -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

drivers/ata/libata-acpi.c

+32 −0
Original line number Diff line number Diff line
@@ -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)