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 <[email protected]>
---
drivers/acpi/dock.c | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
--- kristen-2.6.orig/drivers/acpi/dock.c
+++ kristen-2.6/drivers/acpi/dock.c
@@ -27,6 +27,7 @@
#include <linux/init.h>
#include <linux/types.h>
#include <linux/notifier.h>
+#include <linux/platform_device.h>
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
@@ -38,6 +39,8 @@ MODULE_DESCRIPTION(ACPI_DOCK_DRIVER_NAME
MODULE_LICENSE("GPL");
static struct atomic_notifier_head dock_notifier_list;
+static struct platform_device dock_device;
+static char dock_device_name[] = "dock";
struct dock_station {
acpi_handle handle;
@@ -628,6 +631,15 @@ static int dock_add(acpi_handle handle)
spin_lock_init(&dock_station->hp_lock);
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 */
acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX, find_dock_devices, dock_station,
@@ -637,7 +649,8 @@ static int dock_add(acpi_handle handle)
dd = alloc_dock_dependent_device(handle);
if (!dd) {
kfree(dock_station);
- return -ENOMEM;
+ ret = -ENOMEM;
+ goto dock_add_err_unregister;
}
add_dock_dependent_device(dock_station, dd);
@@ -657,8 +670,10 @@ static int dock_add(acpi_handle handle)
return 0;
dock_add_err:
- kfree(dock_station);
kfree(dd);
+dock_add_err_unregister:
+ platform_device_unregister(&dock_device);
+ kfree(dock_station);
return ret;
}
@@ -685,6 +700,9 @@ static int dock_remove(void)
if (ACPI_FAILURE(status))
printk(KERN_ERR "Error removing notify handler\n");
+ /* cleanup sysfs */
+ platform_device_unregister(&dock_device);
+
/* free dock station memory */
kfree(dock_station);
return 0;
--
-
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