1 files changed, 29 insertions, 34 deletions

diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index be8e7e18abca..3d6e7306f29a 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -21,6 +21,7 @@
 #include <linux/sort.h>
 #include <linux/pci.h>
 #include <linux/pci_ids.h>
+#include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/dmi.h>
 #include <linux/suspend.h>
@@ -76,8 +77,8 @@ static int register_count;
 static DEFINE_MUTEX(register_count_mutex);
 static DEFINE_MUTEX(video_list_lock);
 static LIST_HEAD(video_bus_head);
-static int acpi_video_bus_add(struct acpi_device *device);
-static void acpi_video_bus_remove(struct acpi_device *device);
+static int acpi_video_bus_probe(struct platform_device *pdev);
+static void acpi_video_bus_remove(struct platform_device *pdev);
 static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data);
 
 /*
@@ -98,14 +99,13 @@ static const struct acpi_device_id video_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, video_device_ids);
 
-static struct acpi_driver acpi_video_bus = {
-	.name = "video",
-	.class = ACPI_VIDEO_CLASS,
-	.ids = video_device_ids,
-	.ops = {
-		.add = acpi_video_bus_add,
-		.remove = acpi_video_bus_remove,
-		},
+static struct platform_driver acpi_video_bus = {
+	.probe = acpi_video_bus_probe,
+	.remove = acpi_video_bus_remove,
+	.driver = {
+		.name = "acpi-video",
+		.acpi_match_table = video_device_ids,
+	},
 };
 
 struct acpi_video_bus_flags {
@@ -1134,13 +1134,11 @@ static int acpi_video_bus_get_one_device(struct acpi_device *device, void *arg)
 	struct acpi_video_bus *video = arg;
 	struct acpi_video_device_attrib *attribute;
 	struct acpi_video_device *data;
-	unsigned long long device_id;
-	acpi_status status;
 	int device_type;
+	u64 device_id;
 
-	status = acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id);
 	/* Skip devices without _ADR instead of failing. */
-	if (ACPI_FAILURE(status))
+	if (acpi_get_local_u64_address(device->handle, &device_id))
 		goto exit;
 
 	data = kzalloc(sizeof(struct acpi_video_device), GFP_KERNEL);
@@ -1540,14 +1538,11 @@ static int acpi_video_bus_stop_devices(struct acpi_video_bus *video)
 
 static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
 {
-	struct acpi_device *device = data;
-	struct acpi_video_bus *video = acpi_driver_data(device);
+	struct acpi_video_bus *video = data;
+	struct acpi_device *device = video->device;
 	struct input_dev *input;
 	int keycode = 0;
 
-	if (!video || !video->input)
-		return;
-
 	input = video->input;
 
 	switch (event) {
@@ -1891,7 +1886,8 @@ static void acpi_video_dev_add_notify_handler(struct acpi_video_device *device)
 		device->flags.notify = 1;
 }
 
-static int acpi_video_bus_add_notify_handler(struct acpi_video_bus *video)
+static int acpi_video_bus_add_notify_handler(struct acpi_video_bus *video,
+					     struct platform_device *pdev)
 {
 	struct input_dev *input;
 	struct acpi_video_device *dev;
@@ -1914,7 +1910,7 @@ static int acpi_video_bus_add_notify_handler(struct acpi_video_bus *video)
 	input->phys = video->phys;
 	input->id.bustype = BUS_HOST;
 	input->id.product = 0x06;
-	input->dev.parent = &video->device->dev;
+	input->dev.parent = &pdev->dev;
 	input->evbit[0] = BIT(EV_KEY);
 	set_bit(KEY_SWITCHVIDEOMODE, input->keybit);
 	set_bit(KEY_VIDEO_NEXT, input->keybit);
@@ -1986,8 +1982,9 @@ static int acpi_video_bus_put_devices(struct acpi_video_bus *video)
 
 static int instance;
 
-static int acpi_video_bus_add(struct acpi_device *device)
+static int acpi_video_bus_probe(struct platform_device *pdev)
 {
+	struct acpi_device *device = ACPI_COMPANION(&pdev->dev);
 	struct acpi_video_bus *video;
 	bool auto_detect;
 	int error;
@@ -2024,6 +2021,8 @@ static int acpi_video_bus_add(struct acpi_device *device)
 		instance++;
 	}
 
+	platform_set_drvdata(pdev, video);
+
 	video->device = device;
 	strscpy(acpi_device_name(device), ACPI_VIDEO_BUS_NAME);
 	strscpy(acpi_device_class(device), ACPI_VIDEO_CLASS);
@@ -2071,12 +2070,12 @@ static int acpi_video_bus_add(struct acpi_device *device)
 	    !auto_detect)
 		acpi_video_bus_register_backlight(video);
 
-	error = acpi_video_bus_add_notify_handler(video);
+	error = acpi_video_bus_add_notify_handler(video, pdev);
 	if (error)
 		goto err_del;
 
 	error = acpi_dev_install_notify_handler(device, ACPI_DEVICE_NOTIFY,
-						acpi_video_bus_notify, device);
+						acpi_video_bus_notify, video);
 	if (error)
 		goto err_remove;
 
@@ -2099,15 +2098,10 @@ err_free_video:
 	return error;
 }
 
-static void acpi_video_bus_remove(struct acpi_device *device)
+static void acpi_video_bus_remove(struct platform_device *pdev)
 {
-	struct acpi_video_bus *video = NULL;
-
-
-	if (!device || !acpi_driver_data(device))
-		return;
-
-	video = acpi_driver_data(device);
+	struct acpi_video_bus *video = platform_get_drvdata(pdev);
+	struct acpi_device *device = ACPI_COMPANION(&pdev->dev);
 
 	acpi_dev_remove_notify_handler(device, ACPI_DEVICE_NOTIFY,
 				       acpi_video_bus_notify);
@@ -2122,6 +2116,7 @@ static void acpi_video_bus_remove(struct acpi_device *device)
 
 	kfree(video->attached_array);
 	kfree(video);
+	device->driver_data = NULL;
 }
 
 static int __init is_i740(struct pci_dev *dev)
@@ -2170,7 +2165,7 @@ int acpi_video_register(void)
 
 	dmi_check_system(video_dmi_table);
 
-	ret = acpi_bus_register_driver(&acpi_video_bus);
+	ret = platform_driver_register(&acpi_video_bus);
 	if (ret)
 		goto leave;
 
@@ -2190,7 +2185,7 @@ void acpi_video_unregister(void)
 {
 	mutex_lock(&register_count_mutex);
 	if (register_count) {
-		acpi_bus_unregister_driver(&acpi_video_bus);
+		platform_driver_unregister(&acpi_video_bus);
 		register_count = 0;
 		may_report_brightness_keys = false;
 	}