sony-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.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
CC: Mattia Dongili <malattia@linux.it>
Signed-off-by: Len Brown <len.brown@intel.com>
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index a90ec5c..d3c92d7 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -914,7 +914,7 @@
/*
* ACPI callbacks
*/
-static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
+static void sony_nc_notify(struct acpi_device *device, u32 event)
{
u32 ev = event;
@@ -933,7 +933,7 @@
struct sony_nc_event *key_event;
if (sony_call_snc_handle(key_handle, 0x200, &result)) {
- dprintk("sony_acpi_notify, unable to decode"
+ dprintk("sony_nc_notify, unable to decode"
" event 0x%.2x 0x%.2x\n", key_handle,
ev);
/* restore the original event */
@@ -968,7 +968,7 @@
} else
sony_laptop_report_input_event(ev);
- dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
+ dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
}
@@ -1276,15 +1276,6 @@
goto outwalk;
}
- status = acpi_install_notify_handler(sony_nc_acpi_handle,
- ACPI_DEVICE_NOTIFY,
- sony_acpi_notify, NULL);
- if (ACPI_FAILURE(status)) {
- printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
- result = -ENODEV;
- goto outinput;
- }
-
if (acpi_video_backlight_support()) {
printk(KERN_INFO DRV_PFX "brightness ignored, must be "
"controlled by ACPI video driver\n");
@@ -1362,13 +1353,6 @@
if (sony_backlight_device)
backlight_device_unregister(sony_backlight_device);
- status = acpi_remove_notify_handler(sony_nc_acpi_handle,
- ACPI_DEVICE_NOTIFY,
- sony_acpi_notify);
- if (ACPI_FAILURE(status))
- printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
-
- outinput:
sony_laptop_remove_input();
outwalk:
@@ -1378,7 +1362,6 @@
static int sony_nc_remove(struct acpi_device *device, int type)
{
- acpi_status status;
struct sony_nc_value *item;
if (sony_backlight_device)
@@ -1386,12 +1369,6 @@
sony_nc_acpi_device = NULL;
- status = acpi_remove_notify_handler(sony_nc_acpi_handle,
- ACPI_DEVICE_NOTIFY,
- sony_acpi_notify);
- if (ACPI_FAILURE(status))
- printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
-
for (item = sony_nc_values; item->name; ++item) {
device_remove_file(&sony_pf_device->dev, &item->devattr);
}
@@ -1425,6 +1402,7 @@
.add = sony_nc_add,
.remove = sony_nc_remove,
.resume = sony_nc_resume,
+ .notify = sony_nc_notify,
},
};
