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ACPI: Convert ACPI PCI .bind/.unbind to use PCI bridge driver

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acpi_device had a .bind/.unbind methods, but Linux driver model does not.
Cut ACPI PCI code over to use the Linux driver model methods.

Convert bind/unbind to use a new pci bridge driver.
The driver will add/remove _PRT, so we can eventually
remove .bind/.unbind methods.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Li Shaohua 2006-12-07 20:57:05 +08:00 committed by Len Brown
parent 54a07001b9
commit db3e1cc325
3 changed files with 52 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

56
drivers/acpi/pci_bind.c
View File

@ -223,8 +223,6 @@ int acpi_pci_bind(struct acpi_device *device)
data->id.segment, data->id.bus,
data->id.device, data->id.function));
data->bus = data->dev->subordinate;
device->ops.bind = acpi_pci_bind;
device->ops.unbind = acpi_pci_unbind;
}
/*
@ -354,8 +352,6 @@ acpi_pci_bind_root(struct acpi_device *device,
data->id = *id;
data->bus = bus;
device->ops.bind = acpi_pci_bind;
device->ops.unbind = acpi_pci_unbind;
acpi_get_name(device->handle, ACPI_FULL_PATHNAME, &buffer);
@ -378,3 +374,55 @@ acpi_pci_bind_root(struct acpi_device *device,
return result;
}
#define ACPI_PCI_BRIDGE_DRIVER_NAME "ACPI PCI Bridge Driver"
static int acpi_pci_bridge_add(struct acpi_device *device);
static int acpi_pci_bridge_remove(struct acpi_device *device, int type);
static int acpi_pci_bridge_match(struct acpi_device *device,
struct acpi_driver *driver);
static struct acpi_driver acpi_pci_bridge_driver = {
.name = ACPI_PCI_BRIDGE_DRIVER_NAME,
.ops = {
.add = acpi_pci_bridge_add,
.remove = acpi_pci_bridge_remove,
.match = acpi_pci_bridge_match,
},
};
static int acpi_pci_bridge_match(struct acpi_device *device,
struct acpi_driver *driver)
{
acpi_status status;
acpi_handle handle;
/* pci bridge has _PRT but isn't PNP0A03 */
status = acpi_get_handle(device->handle, METHOD_NAME__PRT, &handle);
if (ACPI_FAILURE(status))
return -ENODEV;
if (!acpi_match_ids(device, "PNP0A03"))
return -ENODEV;
return 0;
}
static int acpi_pci_bridge_add(struct acpi_device *device)
{
return acpi_pci_bind(device);
}
static int acpi_pci_bridge_remove(struct acpi_device *device, int type)
{
return acpi_pci_unbind(device);
}
static int __init acpi_pci_bridge_init(void)
{
if (acpi_pci_disabled)
return 0;
if (acpi_bus_register_driver(&acpi_pci_bridge_driver) < 0)
return -ENODEV;
return 0;
}
/* Should be called after ACPI pci root driver */
subsys_initcall(acpi_pci_bridge_init);

5
drivers/acpi/pci_root.c
View File

@ -175,11 +175,6 @@ static int acpi_pci_root_add(struct acpi_device *device)
strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
acpi_driver_data(device) = root;
/*
* TBD: Doesn't the bus driver automatically set this?
*/
device->ops.bind = acpi_pci_bind;
/*
* Segment
* -------

17
drivers/acpi/scan.c
View File

@ -866,11 +866,6 @@ static int acpi_bus_remove(struct acpi_device *dev, int rmdevice)
if (!rmdevice)
return 0;
if (dev->flags.bus_address) {
if ((dev->parent) && (dev->parent->ops.unbind))
dev->parent->ops.unbind(dev);
}
acpi_device_unregister(dev, ACPI_BUS_REMOVAL_EJECT);
return 0;
@ -987,18 +982,6 @@ acpi_add_single_object(struct acpi_device **child,
acpi_device_register(device, parent);
/*
* Bind _ADR-Based Devices
* -----------------------
* If there's a a bus address (_ADR) then we utilize the parent's
* 'bind' function (if exists) to bind the ACPI- and natively-
* enumerated device representations.
*/
if (device->flags.bus_address) {
if (device->parent && device->parent->ops.bind)
device->parent->ops.bind(device);
}
end:
if (!result)
*child = device;