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ACPI: dock: Make the dock station driver a platform device driver. 

Make the dock station driver a platform device driver so that
we can create sysfs entries under /sys/device/platform.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Kristen Carlson Accardi 2006-12-04 14:49:43 -08:00 committed by Len Brown
parent ec0bf39a47
commit 671adbec21
1 changed files with 20 additions and 2 deletions
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22
drivers/acpi/dock.c
View File

@ -27,6 +27,7 @@
#include <linux/init.h> #include <linux/init.h>
#include <linux/types.h> #include <linux/types.h>
#include <linux/notifier.h> #include <linux/notifier.h>
#include <linux/platform_device.h>
#include <linux/jiffies.h> #include <linux/jiffies.h>
#include <acpi/acpi_bus.h> #include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h> #include <acpi/acpi_drivers.h>
@ -39,6 +40,8 @@ MODULE_DESCRIPTION(ACPI_DOCK_DRIVER_NAME);
MODULE_LICENSE("GPL"); MODULE_LICENSE("GPL");
static struct atomic_notifier_head dock_notifier_list; static struct atomic_notifier_head dock_notifier_list;
static struct platform_device dock_device;
static char dock_device_name[] = "dock";
struct dock_station { struct dock_station {
acpi_handle handle; acpi_handle handle;
@ -629,6 +632,15 @@ static int dock_add(acpi_handle handle)
spin_lock_init(&dock_station->hp_lock); spin_lock_init(&dock_station->hp_lock);
ATOMIC_INIT_NOTIFIER_HEAD(&dock_notifier_list); ATOMIC_INIT_NOTIFIER_HEAD(&dock_notifier_list);
/* initialize platform device stuff */
dock_device.name = dock_device_name;
ret = platform_device_register(&dock_device);
if (ret) {
printk(KERN_ERR PREFIX "Error registering dock device\n", ret);
kfree(dock_station);
return ret;
}
/* Find dependent devices */ /* Find dependent devices */
acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX, find_dock_devices, dock_station, ACPI_UINT32_MAX, find_dock_devices, dock_station,
@ -638,7 +650,8 @@ static int dock_add(acpi_handle handle)
dd = alloc_dock_dependent_device(handle); dd = alloc_dock_dependent_device(handle);
if (!dd) { if (!dd) {
kfree(dock_station); kfree(dock_station);
return -ENOMEM; ret = -ENOMEM;
goto dock_add_err_unregister;
} }
add_dock_dependent_device(dock_station, dd); add_dock_dependent_device(dock_station, dd);
@ -658,8 +671,10 @@ static int dock_add(acpi_handle handle)
return 0; return 0;
dock_add_err: dock_add_err:
kfree(dock_station);
kfree(dd); kfree(dd);
dock_add_err_unregister:
platform_device_unregister(&dock_device);
kfree(dock_station);
return ret; return ret;
} }
@ -686,6 +701,9 @@ static int dock_remove(void)
if (ACPI_FAILURE(status)) if (ACPI_FAILURE(status))
printk(KERN_ERR "Error removing notify handler\n"); printk(KERN_ERR "Error removing notify handler\n");
/* cleanup sysfs */
platform_device_unregister(&dock_device);
/* free dock station memory */ /* free dock station memory */
kfree(dock_station); kfree(dock_station);
return 0; return 0;