[media] media: au0828 change to use Managed Media Controller API

Change au0828 to use Managed Media Controller API to share media device
and coordinate creating/deleting the shared media device with the
snd-usb-audio driver. The shared media device is created as device
resource of the parent usb device of the two drivers.

Populate media device model with USB Device product name instead of
au0828 device board name. This change is necessary because, if the media
device is registered by the snd-usb-audio driver first, and it doesn't
know the au0828 board name.

[mchehab@osg.samsung.com: Fix merge conflicts]

Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c
index 5fea4adef90be7f5f93d2419c89b92d7aa8c58fe..4448399e73c593f58f4ac18789251be77193d8bf 100644 (file)
--- a/drivers/media/usb/au0828/au0828-core.c
+++ b/drivers/media/usb/au0828/au0828-core.c
@@ -134,10 +134,10 @@ static void au0828_unregister_media_device(struct au0828_dev *dev)
 {
 
 #ifdef CONFIG_MEDIA_CONTROLLER
-       if (dev->media_dev) {
+       if (dev->media_dev &&
+               media_devnode_is_registered(&dev->media_dev->devnode)) {
                media_device_unregister(dev->media_dev);
                media_device_cleanup(dev->media_dev);
-               kfree(dev->media_dev);
                dev->media_dev = NULL;
        }
 #endif
@@ -191,14 +191,11 @@ static int au0828_media_device_init(struct au0828_dev *dev,
 #ifdef CONFIG_MEDIA_CONTROLLER
        struct media_device *mdev;
 
-       mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
+       mdev = media_device_get_devres(&udev->dev);
        if (!mdev)
                return -ENOMEM;
 
-       if (!dev->board.name)
-               media_device_usb_init(mdev, udev, "unknown au0828");
-       else
-               media_device_usb_init(mdev, udev, dev->board.name);
+       media_device_usb_init(mdev, udev, udev->product);
 
        dev->media_dev = mdev;
 #endif