Change uvcvideo to use Media Device Allocator API and new Media Controller
media_device_unregister_put() interface.
Signed-off-by: Shuah Khan <shuahkh@xxxxxxxxxxxxxxx>
---
drivers/media/usb/uvc/uvc_driver.c | 36 ++++++++++++++++++++++--------------
drivers/media/usb/uvc/uvcvideo.h | 3 ++-
2 files changed, 24 insertions(+), 15 deletions(-)
diff --git a/drivers/media/usb/uvc/uvc_driver.c b/drivers/media/usb/uvc/uvc_driver.c
index 451e84e9..95e30c4 100644
--- a/drivers/media/usb/uvc/uvc_driver.c
+++ b/drivers/media/usb/uvc/uvc_driver.c
@@ -1674,9 +1674,10 @@ static void uvc_delete(struct uvc_device *dev)
if (dev->vdev.dev)
v4l2_device_unregister(&dev->vdev);
#ifdef CONFIG_MEDIA_CONTROLLER
- if (media_devnode_is_registered(&dev->mdev.devnode))
- media_device_unregister(&dev->mdev);
- media_device_cleanup(&dev->mdev);
+ if (media_devnode_is_registered(&dev->mdev->devnode)) {
+ media_device_unregister_put(dev->mdev);
+ media_device_put(dev->mdev->dev);
+ }
#endif
list_for_each_safe(p, n, &dev->chains) {
@@ -1929,17 +1930,20 @@ static int uvc_probe(struct usb_interface *intf,
/* Initialize the media device and register the V4L2 device. */
#ifdef CONFIG_MEDIA_CONTROLLER
- dev->mdev.dev = &intf->dev;
- strlcpy(dev->mdev.model, dev->name, sizeof(dev->mdev.model));
+ dev->mdev = media_device_get(&intf->dev);
+ if (!dev->mdev)
+ goto media_device_get_error;
+ dev->mdev->dev = &intf->dev;
+ strlcpy(dev->mdev->model, dev->name, sizeof(dev->mdev->model));
if (udev->serial)
- strlcpy(dev->mdev.serial, udev->serial,
- sizeof(dev->mdev.serial));
- strcpy(dev->mdev.bus_info, udev->devpath);
- dev->mdev.hw_revision = le16_to_cpu(udev->descriptor.bcdDevice);
- dev->mdev.driver_version = LINUX_VERSION_CODE;
- media_device_init(&dev->mdev);
-
- dev->vdev.mdev = &dev->mdev;
+ strlcpy(dev->mdev->serial, udev->serial,
+ sizeof(dev->mdev->serial));
+ strcpy(dev->mdev->bus_info, udev->devpath);
+ dev->mdev->hw_revision = le16_to_cpu(udev->descriptor.bcdDevice);
+ dev->mdev->driver_version = LINUX_VERSION_CODE;
+ media_device_init(dev->mdev);
+
+ dev->vdev.mdev = dev->mdev;
#endif
if (v4l2_device_register(&intf->dev, &dev->vdev) < 0)
goto error;
@@ -1958,7 +1962,7 @@ static int uvc_probe(struct usb_interface *intf,
#ifdef CONFIG_MEDIA_CONTROLLER
/* Register the media device node */
- if (media_device_register(&dev->mdev) < 0)
+ if (media_device_register(dev->mdev) < 0)
goto error;
#endif
/* Save our data pointer in the interface data. */
@@ -1976,6 +1980,10 @@ static int uvc_probe(struct usb_interface *intf,
return 0;
error:
+#ifdef CONFIG_MEDIA_CONTROLLER
+ media_device_put(&intf->dev);
+media_device_get_error:
+#endif
uvc_unregister_video(dev);
return -ENODEV;
}
diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
index 7e4d3ee..a5ef719 100644
--- a/drivers/media/usb/uvc/uvcvideo.h
+++ b/drivers/media/usb/uvc/uvcvideo.h
@@ -12,6 +12,7 @@
#include <linux/uvcvideo.h>
#include <linux/videodev2.h>
#include <media/media-device.h>
+#include <media/media-dev-allocator.h>
#include <media/v4l2-device.h>
#include <media/v4l2-event.h>
#include <media/v4l2-fh.h>
@@ -543,7 +544,7 @@ struct uvc_device {
/* Video control interface */
#ifdef CONFIG_MEDIA_CONTROLLER
- struct media_device mdev;
+ struct media_device *mdev;
#endif
struct v4l2_device vdev;
__u16 uvc_version;
--
2.5.0
--
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