[media] sn9c102_core: add v4l2_device and replace parent with v4l2_dev

This driver did not yet support struct v4l2_device, so add it. This
make it possible to replace the deprecated parent field with the
v4l2_dev field, allowing the eventual removal of the parent field.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/drivers/media/usb/sn9c102/sn9c102.h b/drivers/media/usb/sn9c102/sn9c102.h
index 2bc153e..8a917f0 100644 (file)
--- a/drivers/media/usb/sn9c102/sn9c102.h
+++ b/drivers/media/usb/sn9c102/sn9c102.h
@@ -25,6 +25,7 @@
 #include <linux/videodev2.h>
 #include <media/v4l2-common.h>
 #include <media/v4l2-ioctl.h>
+#include <media/v4l2-device.h>
 #include <linux/device.h>
 #include <linux/list.h>
 #include <linux/spinlock.h>
@@ -100,6 +101,8 @@ static DECLARE_RWSEM(sn9c102_dev_lock);
 struct sn9c102_device {
        struct video_device* v4ldev;
 
+       struct v4l2_device v4l2_dev;
+
        enum sn9c102_bridge bridge;
        struct sn9c102_sensor sensor;
 

diff --git a/drivers/media/usb/sn9c102/sn9c102_core.c b/drivers/media/usb/sn9c102/sn9c102_core.c
index c957e9a..2cb44de 100644 (file)
--- a/drivers/media/usb/sn9c102/sn9c102_core.c
+++ b/drivers/media/usb/sn9c102/sn9c102_core.c
@@ -1737,6 +1737,7 @@ static void sn9c102_release_resources(struct kref *kref)
            video_device_node_name(cam->v4ldev));
        video_set_drvdata(cam->v4ldev, NULL);
        video_unregister_device(cam->v4ldev);
+       v4l2_device_unregister(&cam->v4l2_dev);
        usb_put_dev(cam->usbdev);
        kfree(cam->control_buffer);
        kfree(cam);
@@ -3254,6 +3255,13 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
 
        cam->usbdev = udev;
 
+       /* register v4l2_device early so it can be used for printks */
+       if (v4l2_device_register(&intf->dev, &cam->v4l2_dev)) {
+               dev_err(&intf->dev, "v4l2_device_register failed\n");
+               err = -ENOMEM;
+               goto fail;
+       }
+
        if (!(cam->control_buffer = kzalloc(8, GFP_KERNEL))) {
                DBG(1, "kzalloc() failed");
                err = -ENOMEM;
@@ -3325,7 +3333,7 @@ sn9c102_usb_probe(struct usb_interface* intf, const struct usb_device_id* id)
        strcpy(cam->v4ldev->name, "SN9C1xx PC Camera");
        cam->v4ldev->fops = &sn9c102_fops;
        cam->v4ldev->release = video_device_release;
-       cam->v4ldev->parent = &udev->dev;
+       cam->v4ldev->v4l2_dev = &cam->v4l2_dev;
 
        init_completion(&cam->probe);
 
@@ -3377,6 +3385,7 @@ fail:
                kfree(cam->control_buffer);
                if (cam->v4ldev)
                        video_device_release(cam->v4ldev);
+               v4l2_device_unregister(&cam->v4l2_dev);
                kfree(cam);
        }
        return err;
@@ -3407,6 +3416,8 @@ static void sn9c102_usb_disconnect(struct usb_interface* intf)
 
        wake_up_interruptible_all(&cam->wait_open);
 
+       v4l2_device_disconnect(&cam->v4l2_dev);
+
        kref_put(&cam->kref, sn9c102_release_resources);
 
        up_write(&sn9c102_dev_lock);