From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Request API requires a media node. Add one to the vim2m driver so we can
use requests with it.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
Signed-off-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxx>
---
drivers/media/platform/vim2m.c | 41 +++++++++++++++++++++++++++++-----
1 file changed, 36 insertions(+), 5 deletions(-)
diff --git a/drivers/media/platform/vim2m.c b/drivers/media/platform/vim2m.c
index 065483e62db4..3b521c4f6def 100644
--- a/drivers/media/platform/vim2m.c
+++ b/drivers/media/platform/vim2m.c
@@ -140,6 +140,9 @@ static struct vim2m_fmt *find_format(struct v4l2_format *f)
struct vim2m_dev {
struct v4l2_device v4l2_dev;
struct video_device vfd;
+#ifdef CONFIG_MEDIA_CONTROLLER
+ struct media_device mdev;
+#endif
atomic_t num_inst;
struct mutex dev_mutex;
@@ -1013,10 +1016,10 @@ static int vim2m_probe(struct platform_device *pdev)
vfd->lock = &dev->dev_mutex;
vfd->v4l2_dev = &dev->v4l2_dev;
- ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
+ ret = video_register_device(vfd, VFL_TYPE_MEM2MEM, 0);
if (ret) {
v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
- goto unreg_dev;
+ goto unreg_v4l2;
}
video_set_drvdata(vfd, dev);
@@ -1031,15 +1034,38 @@ static int vim2m_probe(struct platform_device *pdev)
if (IS_ERR(dev->m2m_dev)) {
v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
ret = PTR_ERR(dev->m2m_dev);
- goto err_m2m;
+ goto unreg_dev;
+ }
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+ dev->mdev.dev = &pdev->dev;
+ strlcpy(dev->mdev.model, "vim2m", sizeof(dev->mdev.model));
+ media_device_init(&dev->mdev);
+ dev->v4l2_dev.mdev = &dev->mdev;
+
+ ret = v4l2_m2m_register_media_controller(dev->m2m_dev, vfd);
+ if (ret) {
+ v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem media controller\n");
+ goto unreg_m2m;
}
+ ret = media_device_register(&dev->mdev);
+ if (ret) {
+ v4l2_err(&dev->v4l2_dev, "Failed to register mem2mem media device\n");
+ goto unreg_m2m_mc;
+ }
+#endif
return 0;
-err_m2m:
+#ifdef CONFIG_MEDIA_CONTROLLER
+unreg_m2m_mc:
+ v4l2_m2m_unregister_media_controller(dev->m2m_dev);
+unreg_m2m:
v4l2_m2m_release(dev->m2m_dev);
- video_unregister_device(&dev->vfd);
+#endif
unreg_dev:
+ video_unregister_device(&dev->vfd);
+unreg_v4l2:
v4l2_device_unregister(&dev->v4l2_dev);
return ret;
@@ -1050,6 +1076,11 @@ static int vim2m_remove(struct platform_device *pdev)
struct vim2m_dev *dev = platform_get_drvdata(pdev);
v4l2_info(&dev->v4l2_dev, "Removing " MEM2MEM_NAME);
+
+#ifdef CONFIG_MEDIA_CONTROLLER
+ v4l2_m2m_unregister_media_controller(dev->m2m_dev);
+ media_device_cleanup(&dev->mdev);
+#endif
v4l2_m2m_release(dev->m2m_dev);
del_timer_sync(&dev->timer);
video_unregister_device(&dev->vfd);
--
2.17.1
