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authorBjorn Helgaas <bjorn.helgaas@hp.com>2009-04-30 09:35:53 -0600
committerLen Brown <len.brown@intel.com>2009-06-18 00:13:15 -0400
commit586ed1604fd6137cae1e8ede8143c3b8897306fd (patch)
tree0a701eea65ecd372fa1d38cd4edb1b899fe36958 /drivers/platform/x86
parentd94066910943837558d2a461c6766da981260bf0 (diff)
ACPI: asus-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. This driver apparently relies on seeing ALL notify events, not just device-specific ones (because it used ACPI_ALL_NOTIFY). We use the ACPI_DRIVER_ALL_NOTIFY_EVENTS driver flag to request all events. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> CC: Corentin Chary <corentincj@iksaif.net> CC: acpi4asus-user@lists.sourceforge.net Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/platform/x86')
-rw-r--r--drivers/platform/x86/asus-laptop.c23
1 files changed, 5 insertions, 18 deletions
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index bfc1a8892a3..eaffe732653 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -207,13 +207,17 @@ MODULE_DEVICE_TABLE(acpi, asus_device_ids);
static int asus_hotk_add(struct acpi_device *device);
static int asus_hotk_remove(struct acpi_device *device, int type);
+static void asus_hotk_notify(struct acpi_device *device, u32 event);
+
static struct acpi_driver asus_hotk_driver = {
.name = ASUS_HOTK_NAME,
.class = ASUS_HOTK_CLASS,
.ids = asus_device_ids,
+ .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
.ops = {
.add = asus_hotk_add,
.remove = asus_hotk_remove,
+ .notify = asus_hotk_notify,
},
};
@@ -812,7 +816,7 @@ static int asus_setkeycode(struct input_dev *dev, int scancode, int keycode)
return -EINVAL;
}
-static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
+static void asus_hotk_notify(struct acpi_device *device, u32 event)
{
static struct key_entry *key;
u16 count;
@@ -1124,7 +1128,6 @@ static int asus_hotk_found;
static int asus_hotk_add(struct acpi_device *device)
{
- acpi_status status = AE_OK;
int result;
if (!device)
@@ -1149,15 +1152,6 @@ static int asus_hotk_add(struct acpi_device *device)
asus_hotk_add_fs();
- /*
- * We install the handler, it will receive the hotk in parameter, so, we
- * could add other data to the hotk struct
- */
- status = acpi_install_notify_handler(hotk->handle, ACPI_ALL_NOTIFY,
- asus_hotk_notify, hotk);
- if (ACPI_FAILURE(status))
- printk(ASUS_ERR "Error installing notify handler\n");
-
asus_hotk_found = 1;
/* WLED and BLED are on by default */
@@ -1198,16 +1192,9 @@ end:
static int asus_hotk_remove(struct acpi_device *device, int type)
{
- acpi_status status = 0;
-
if (!device || !acpi_driver_data(device))
return -EINVAL;
- status = acpi_remove_notify_handler(hotk->handle, ACPI_ALL_NOTIFY,
- asus_hotk_notify);
- if (ACPI_FAILURE(status))
- printk(ASUS_ERR "Error removing notify handler\n");
-
kfree(hotk->name);
kfree(hotk);