--- zzzz-none-000/linux-3.10.107/drivers/video/backlight/pandora_bl.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/video/backlight/pandora_bl.c	2021-02-04 17:41:59.000000000 +0000
@@ -100,15 +100,9 @@
 	return 0;
 }
 
-static int pandora_backlight_get_brightness(struct backlight_device *bl)
-{
-	return bl->props.brightness;
-}
-
 static const struct backlight_ops pandora_backlight_ops = {
 	.options	= BL_CORE_SUSPENDRESUME,
 	.update_status	= pandora_backlight_update_status,
-	.get_brightness	= pandora_backlight_get_brightness,
 };
 
 static int pandora_backlight_probe(struct platform_device *pdev)
@@ -120,8 +114,8 @@
 	memset(&props, 0, sizeof(props));
 	props.max_brightness = MAX_USER_VALUE;
 	props.type = BACKLIGHT_RAW;
-	bl = backlight_device_register(pdev->name, &pdev->dev,
-			NULL, &pandora_backlight_ops, &props);
+	bl = devm_backlight_device_register(&pdev->dev, pdev->name, &pdev->dev,
+					NULL, &pandora_backlight_ops, &props);
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "failed to register backlight\n");
 		return PTR_ERR(bl);
@@ -145,20 +139,11 @@
 	return 0;
 }
 
-static int pandora_backlight_remove(struct platform_device *pdev)
-{
-	struct backlight_device *bl = platform_get_drvdata(pdev);
-	backlight_device_unregister(bl);
-	return 0;
-}
-
 static struct platform_driver pandora_backlight_driver = {
 	.driver		= {
 		.name	= "pandora-backlight",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= pandora_backlight_probe,
-	.remove		= pandora_backlight_remove,
 };
 
 module_platform_driver(pandora_backlight_driver);