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authorBjorn Helgaas <bjorn.helgaas@hp.com>2009-04-07 15:37:16 +0000
committerLen Brown <len.brown@intel.com>2009-04-07 16:26:58 -0400
commit700b6721cd1b891b67c2dcee046be12154a21fd6 (patch)
tree039361cd10127bc6ea10cb3ef09bf61b84023016 /drivers/platform/x86/fujitsu-laptop.c
parent7015558fca5ee82fc17227b61d88ddaa02d82242 (diff)
downloadop-kernel-dev-700b6721cd1b891b67c2dcee046be12154a21fd6.zip
op-kernel-dev-700b6721cd1b891b67c2dcee046be12154a21fd6.tar.gz
fujitsu-laptop: use .notify method instead of installing handler directly
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>
Diffstat (limited to 'drivers/platform/x86/fujitsu-laptop.c')
-rw-r--r--drivers/platform/x86/fujitsu-laptop.c28
1 files changed, 4 insertions, 24 deletions
diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index 45940f3..10f8796 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -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,
},
};
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