[media] em2xx: use v4l2_mc_create_media_graph()

Now that the core has a function to create the media graph,
we can get rid of the specialized code at em28xx.

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

diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c
index 16a2d40..e7fd0ba 100644 (file)
--- a/drivers/media/usb/em28xx/em28xx-video.c
+++ b/drivers/media/usb/em28xx/em28xx-video.c
@@ -883,135 +883,6 @@ static void em28xx_v4l2_media_release(struct em28xx *dev)
  * Media Controller helper functions
  */
 
-static int em28xx_v4l2_create_media_graph(struct em28xx *dev)
-{
-#ifdef CONFIG_MEDIA_CONTROLLER
-       struct em28xx_v4l2 *v4l2 = dev->v4l2;
-       struct media_device *mdev = dev->media_dev;
-       struct media_entity *entity;
-       struct media_entity *if_vid = NULL, *if_aud = NULL;
-       struct media_entity *tuner = NULL, *decoder = NULL;
-       int i, ret;
-
-       if (!mdev)
-               return 0;
-
-       /* Webcams are really simple */
-       if (dev->board.is_webcam) {
-               media_device_for_each_entity(entity, mdev) {
-                       if (entity->function != MEDIA_ENT_F_CAM_SENSOR)
-                               continue;
-                       ret = media_create_pad_link(entity, 0,
-                                                   &v4l2->vdev.entity, 0,
-                                                   MEDIA_LNK_FL_ENABLED);
-                       if (ret)
-                               return ret;
-               }
-               return 0;
-       }
-
-       /* Non-webcams have analog TV decoder and other complexities */
-
-       media_device_for_each_entity(entity, mdev) {
-               switch (entity->function) {
-               case MEDIA_ENT_F_IF_VID_DECODER:
-                       if_vid = entity;
-                       break;
-               case MEDIA_ENT_F_IF_AUD_DECODER:
-                       if_aud = entity;
-                       break;
-               case MEDIA_ENT_F_TUNER:
-                       tuner = entity;
-                       break;
-               case MEDIA_ENT_F_ATV_DECODER:
-                       decoder = entity;
-                       break;
-               }
-       }
-
-       /* Analog setup, using tuner as a link */
-
-       /* Something bad happened! */
-       if (!decoder)
-               return -EINVAL;
-
-       if (tuner) {
-               if (if_vid) {
-                       ret = media_create_pad_link(tuner, TUNER_PAD_OUTPUT,
-                                                   if_vid,
-                                                   IF_VID_DEC_PAD_IF_INPUT,
-                                                   MEDIA_LNK_FL_ENABLED);
-                       if (ret)
-                               return ret;
-                       ret = media_create_pad_link(if_vid, IF_VID_DEC_PAD_OUT,
-                                               decoder, DEMOD_PAD_IF_INPUT,
-                                               MEDIA_LNK_FL_ENABLED);
-                       if (ret)
-                               return ret;
-               } else {
-                       ret = media_create_pad_link(tuner, TUNER_PAD_OUTPUT,
-                                               decoder, DEMOD_PAD_IF_INPUT,
-                                               MEDIA_LNK_FL_ENABLED);
-                       if (ret)
-                               return ret;
-               }
-
-               if (if_aud) {
-                       ret = media_create_pad_link(tuner, TUNER_PAD_AUD_OUT,
-                                                   if_aud,
-                                                   IF_AUD_DEC_PAD_IF_INPUT,
-                                                   MEDIA_LNK_FL_ENABLED);
-                       if (ret)
-                               return ret;
-               } else {
-                       if_aud = tuner;
-               }
-
-       }
-       ret = media_create_pad_link(decoder, DEMOD_PAD_VID_OUT,
-                                   &v4l2->vdev.entity, 0,
-                                   MEDIA_LNK_FL_ENABLED);
-       if (ret)
-               return ret;
-
-       if (em28xx_vbi_supported(dev)) {
-               ret = media_create_pad_link(decoder, DEMOD_PAD_VBI_OUT,
-                                           &v4l2->vbi_dev.entity, 0,
-                                           MEDIA_LNK_FL_ENABLED);
-               if (ret)
-                       return ret;
-       }
-
-       for (i = 0; i < MAX_EM28XX_INPUT; i++) {
-               struct media_entity *ent = &dev->input_ent[i];
-
-               if (!INPUT(i)->type)
-                       break;
-
-               switch (INPUT(i)->type) {
-               case EM28XX_VMUX_COMPOSITE:
-               case EM28XX_VMUX_SVIDEO:
-                       ret = media_create_pad_link(ent, 0, decoder,
-                                                   DEMOD_PAD_IF_INPUT, 0);
-                       if (ret)
-                               return ret;
-                       break;
-               default: /* EM28XX_VMUX_TELEVISION or EM28XX_RADIO */
-                       if (!tuner)
-                               break;
-
-                       ret = media_create_pad_link(ent, 0, tuner,
-                                                   TUNER_PAD_RF_INPUT,
-                                                   MEDIA_LNK_FL_ENABLED);
-                       if (ret)
-                               return ret;
-                       break;
-               }
-       }
-#endif
-       return 0;
-}
-
 static int em28xx_enable_analog_tuner(struct em28xx *dev)
 {
 #ifdef CONFIG_MEDIA_CONTROLLER
@@ -2842,7 +2713,7 @@ static int em28xx_v4l2_init(struct em28xx *dev)
        /* Init entities at the Media Controller */
        em28xx_v4l2_create_entities(dev);
 
-       ret = em28xx_v4l2_create_media_graph(dev);
+       ret = v4l2_mc_create_media_graph(dev->media_dev);
        if (ret) {
                em28xx_errdev("failed to create media graph\n");
                em28xx_v4l2_media_release(dev);