[PATCH v1 1/2] platform/x86: acer-wireless: Register ACPI notify handler directly

["Rafael J. Wysocki" <rafael@kernel.org>]

From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>

To facilitate subsequent conversion of the driver to a platform one,
make it install an ACPI notify handler directly instead of using
a .notify() callback in struct acpi_driver.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/acer-wireless.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/acer-wireless.c b/drivers/platform/x86/acer-wireless.c
index 1b5d935d085a..f44d65d97023 100644
--- a/drivers/platform/x86/acer-wireless.c
+++ b/drivers/platform/x86/acer-wireless.c
@@ -18,8 +18,9 @@ static const struct acpi_device_id acer_wireless_acpi_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, acer_wireless_acpi_ids);
 
-static void acer_wireless_notify(struct acpi_device *adev, u32 event)
+static void acer_wireless_notify(acpi_handle handle, u32 event, void *data)
 {
+	struct acpi_device *adev = data;
 	struct input_dev *idev = acpi_driver_data(adev);
 
 	dev_dbg(&adev->dev, "event=%#x\n", event);
@@ -36,6 +37,7 @@ static void acer_wireless_notify(struct acpi_device *adev, u32 event)
 static int acer_wireless_add(struct acpi_device *adev)
 {
 	struct input_dev *idev;
+	int ret;
 
 	idev = devm_input_allocate_device(&adev->dev);
 	if (!idev)
@@ -50,7 +52,18 @@ static int acer_wireless_add(struct acpi_device *adev)
 	set_bit(EV_KEY, idev->evbit);
 	set_bit(KEY_RFKILL, idev->keybit);
 
-	return input_register_device(idev);
+	ret = input_register_device(idev);
+	if (ret)
+		return ret;
+
+	return acpi_dev_install_notify_handler(adev, ACPI_DEVICE_NOTIFY,
+					       acer_wireless_notify, adev);
+}
+
+static void acer_wireless_remove(struct acpi_device *adev)
+{
+	acpi_dev_remove_notify_handler(adev, ACPI_DEVICE_NOTIFY,
+				       acer_wireless_notify);
 }
 
 static struct acpi_driver acer_wireless_driver = {
@@ -59,7 +72,7 @@ static struct acpi_driver acer_wireless_driver = {
 	.ids = acer_wireless_acpi_ids,
 	.ops = {
 		.add = acer_wireless_add,
-		.notify = acer_wireless_notify,
+		.remove = acer_wireless_remove,
 	},
 };
 module_acpi_driver(acer_wireless_driver);
-- 
2.51.0