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fujitsu-laptop: use .notify method instead of installing handler directly

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This patch adds a .notify() method.  The presence of .notify() causes
Linux/ACPI to manage event handlers and notify handlers on our behalf,
so we don't have to install and remove them ourselves.

Tested by Tony on Fujitsu-Siemens Lifebook S6420 [FJNB1E6] with
BIOS 1.18 (01/09/2009).  Tested by Jonathan on Fujitsu S7020.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-By: Tony Vroon <tony@linx.net>
Tested-By: Tony Vroon <tony@linx.net>
Acked-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Tested-by: Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Bjorn Helgaas 2009-04-07 15:37:16 +00:00 committed by Len Brown
parent 7015558fca
commit 700b6721cd
1 changed files with 4 additions and 24 deletions
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28
drivers/platform/x86/fujitsu-laptop.c
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@ -203,7 +203,7 @@ struct led_classdev kblamps_led = {
static u32 dbg_level = 0x03;
#endif
static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data);
static void acpi_fujitsu_notify(struct acpi_device *device, u32 event);
/* Fujitsu ACPI interface function */
@ -658,7 +658,6 @@ static struct dmi_system_id fujitsu_dmi_table[] = {
static int acpi_fujitsu_add(struct acpi_device *device)
{
acpi_status status;
acpi_handle handle;
int result = 0;
int state = 0;
@ -673,20 +672,10 @@ static int acpi_fujitsu_add(struct acpi_device *device)
sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
device->driver_data = fujitsu;
status = acpi_install_notify_handler(device->handle,
ACPI_DEVICE_NOTIFY,
acpi_fujitsu_notify, fujitsu);
if (ACPI_FAILURE(status)) {
printk(KERN_ERR "Error installing notify handler\n");
error = -ENODEV;
goto err_stop;
}
fujitsu->input = input = input_allocate_device();
if (!input) {
error = -ENOMEM;
goto err_uninstall_notify;
goto err_stop;
}
snprintf(fujitsu->phys, sizeof(fujitsu->phys),
@ -743,9 +732,6 @@ static int acpi_fujitsu_add(struct acpi_device *device)
end:
err_free_input_dev:
input_free_device(input);
err_uninstall_notify:
acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
acpi_fujitsu_notify);
err_stop:
return result;
@ -753,7 +739,6 @@ err_stop:
static int acpi_fujitsu_remove(struct acpi_device *device, int type)
{
acpi_status status;
struct fujitsu_t *fujitsu = NULL;
if (!device || !acpi_driver_data(device))
@ -761,10 +746,6 @@ static int acpi_fujitsu_remove(struct acpi_device *device, int type)
fujitsu = acpi_driver_data(device);
status = acpi_remove_notify_handler(fujitsu->acpi_handle,
ACPI_DEVICE_NOTIFY,
acpi_fujitsu_notify);
if (!device || !acpi_driver_data(device))
return -EINVAL;
@ -775,7 +756,7 @@ static int acpi_fujitsu_remove(struct acpi_device *device, int type)
/* Brightness notify */
static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data)
static void acpi_fujitsu_notify(struct acpi_device *device, u32 event)
{
struct input_dev *input;
int keycode;
@ -829,8 +810,6 @@ static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data)
input_report_key(input, keycode, 0);
input_sync(input);
}
return;
}
/* ACPI device for hotkey handling */
@ -1107,6 +1086,7 @@ static struct acpi_driver acpi_fujitsu_driver = {
.ops = {
.add = acpi_fujitsu_add,
.remove = acpi_fujitsu_remove,
.notify = acpi_fujitsu_notify,
},
};