diff options
Diffstat (limited to 'drivers/media/usb/au0828/au0828-core.c')
| -rw-r--r-- | drivers/media/usb/au0828/au0828-core.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/media/usb/au0828/au0828-core.c b/drivers/media/usb/au0828/au0828-core.c index 7fc3dba5e2b6..5dc82e8c8670 100644 --- a/drivers/media/usb/au0828/au0828-core.c +++ b/drivers/media/usb/au0828/au0828-core.c @@ -456,6 +456,7 @@ static int au0828_media_device_register(struct au0828_dev *dev, { #ifdef CONFIG_MEDIA_CONTROLLER int ret; + struct media_entity *entity, *demod = NULL, *tuner = NULL; if (!dev->media_dev) return 0; @@ -479,6 +480,31 @@ static int au0828_media_device_register(struct au0828_dev *dev, */ au0828_media_graph_notify(NULL, (void *) dev); } + + /* + * Find tuner and demod to disable the link between + * the two to avoid disable step when tuner is requested + * by video or audio. Note that this step can't be done + * until dvb graph is created during dvb register. + */ + media_device_for_each_entity(entity, dev->media_dev) { + if (entity->function == MEDIA_ENT_F_DTV_DEMOD) + demod = entity; + else if (entity->function == MEDIA_ENT_F_TUNER) + tuner = entity; + } + /* Disable link between tuner and demod */ + if (tuner && demod) { + struct media_link *link; + + list_for_each_entry(link, &demod->links, list) { + if (link->sink->entity == demod && + link->source->entity == tuner) { + media_entity_setup_link(link, 0); + } + } + } + /* register entity_notify callback */ dev->entity_notify.notify_data = (void *) dev; dev->entity_notify.notify = (void *) au0828_media_graph_notify; |