55 	struct video_mux *vmux = v4l2_subdev_to_video_mux(sd);  in video_mux_link_setup()  local
70 	mutex_lock(&vmux->lock);  in video_mux_link_setup()
76 		if (vmux->active == local->index)  in video_mux_link_setup()
79 		if (vmux->active >= 0) {  in video_mux_link_setup()
85 		ret = mux_control_try_select(vmux->mux, local->index);  in video_mux_link_setup()
88 		vmux->active = local->index;  in video_mux_link_setup()
95 								   vmux->active);  in video_mux_link_setup()
98 		if (vmux->active != local->index)  in video_mux_link_setup()
102 		mux_control_deselect(vmux->mux);  in video_mux_link_setup()
103 		vmux->active = -1;  in video_mux_link_setup()
107 	mutex_unlock(&vmux->lock);  in video_mux_link_setup()
119 	struct video_mux *vmux = v4l2_subdev_to_video_mux(sd);  in video_mux_s_stream()  local
123 	if (vmux->active == -1) {  in video_mux_s_stream()
128 	pad = media_pad_remote_pad_first(&sd->entity.pads[vmux->active]);  in video_mux_s_stream()
152 	struct video_mux *vmux = v4l2_subdev_to_video_mux(sd);  in video_mux_set_format()  local
154 	struct media_pad *pad = &vmux->pads[sdformat->pad];  in video_mux_set_format()
267 	mutex_lock(&vmux->lock);  in video_mux_set_format()
270 	if ((pad->flags & MEDIA_PAD_FL_SOURCE) && vmux->active >= 0)  in video_mux_set_format()
272 								 vmux->active);  in video_mux_set_format()
277 	if ((pad->flags & MEDIA_PAD_FL_SINK) && (pad->index == vmux->active))  in video_mux_set_format()
280 	mutex_unlock(&vmux->lock);  in video_mux_set_format()
288 	struct video_mux *vmux = v4l2_subdev_to_video_mux(sd);  in video_mux_init_state()  local
292 	mutex_lock(&vmux->lock);  in video_mux_init_state()
299 	mutex_unlock(&vmux->lock);  in video_mux_init_state()
322 	struct video_mux *vmux = notifier_to_video_mux(notifier);  in video_mux_notify_bound()  local
324 	return v4l2_create_fwnode_links(sd, &vmux->subdev);  in video_mux_notify_bound()
331 static int video_mux_async_register(struct video_mux *vmux,  in video_mux_async_register()  argument
337 	v4l2_async_subdev_nf_init(&vmux->notifier, &vmux->subdev);  in video_mux_async_register()
344 			dev_fwnode(vmux->subdev.dev), i, 0,  in video_mux_async_register()
357 		asd = v4l2_async_nf_add_fwnode_remote(&vmux->notifier, ep,  in video_mux_async_register()
370 	vmux->notifier.ops = &video_mux_notify_ops;  in video_mux_async_register()
372 	ret = v4l2_async_nf_register(&vmux->notifier);  in video_mux_async_register()
376 	ret = v4l2_async_register_subdev(&vmux->subdev);  in video_mux_async_register()
383 	v4l2_async_nf_unregister(&vmux->notifier);  in video_mux_async_register()
385 	v4l2_async_nf_cleanup(&vmux->notifier);  in video_mux_async_register()
394 	struct video_mux *vmux;  in video_mux_probe()  local
399 	vmux = devm_kzalloc(dev, sizeof(*vmux), GFP_KERNEL);  in video_mux_probe()
400 	if (!vmux)  in video_mux_probe()
403 	platform_set_drvdata(pdev, vmux);  in video_mux_probe()
405 	v4l2_subdev_init(&vmux->subdev, &video_mux_subdev_ops);  in video_mux_probe()
406 	vmux->subdev.internal_ops = &video_mux_internal_ops;  in video_mux_probe()
407 	snprintf(vmux->subdev.name, sizeof(vmux->subdev.name), "%pOFn", np);  in video_mux_probe()
408 	vmux->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;  in video_mux_probe()
409 	vmux->subdev.dev = dev;  in video_mux_probe()
427 	vmux->mux = devm_mux_control_get(dev, NULL);  in video_mux_probe()
428 	if (IS_ERR(vmux->mux)) {  in video_mux_probe()
429 		ret = PTR_ERR(vmux->mux);  in video_mux_probe()
433 	mutex_init(&vmux->lock);  in video_mux_probe()
434 	vmux->active = -1;  in video_mux_probe()
435 	vmux->pads = devm_kcalloc(dev, num_pads, sizeof(*vmux->pads),  in video_mux_probe()
437 	if (!vmux->pads)  in video_mux_probe()
441 		vmux->pads[i].flags = (i < num_pads - 1) ? MEDIA_PAD_FL_SINK  in video_mux_probe()
444 	vmux->subdev.entity.function = MEDIA_ENT_F_VID_MUX;  in video_mux_probe()
445 	ret = media_entity_pads_init(&vmux->subdev.entity, num_pads,  in video_mux_probe()
446 				     vmux->pads);  in video_mux_probe()
450 	vmux->subdev.entity.ops = &video_mux_ops;  in video_mux_probe()
452 	ret = v4l2_subdev_init_finalize(&vmux->subdev);  in video_mux_probe()
456 	ret = video_mux_async_register(vmux, num_pads - 1);  in video_mux_probe()
463 	v4l2_subdev_cleanup(&vmux->subdev);  in video_mux_probe()
465 	media_entity_cleanup(&vmux->subdev.entity);  in video_mux_probe()
471 	struct video_mux *vmux = platform_get_drvdata(pdev);  in video_mux_remove()  local
472 	struct v4l2_subdev *sd = &vmux->subdev;  in video_mux_remove()
474 	v4l2_async_nf_unregister(&vmux->notifier);  in video_mux_remove()
475 	v4l2_async_nf_cleanup(&vmux->notifier);  in video_mux_remove()