55 xvip_graph_find_entity(struct xvip_composite_device *xdev,  in xvip_graph_find_entity()  argument
60 	list_for_each_entry(entity, &xdev->entities, list) {  in xvip_graph_find_entity()
68 static int xvip_graph_build_one(struct xvip_composite_device *xdev,  in xvip_graph_build_one()  argument
82 	dev_dbg(xdev->dev, "creating links for entity %s\n", local->name);  in xvip_graph_build_one()
93 		dev_dbg(xdev->dev, "processing endpoint %s\n", ep->full_name);  in xvip_graph_build_one()
97 			dev_err(xdev->dev, "failed to parse link for %s\n",  in xvip_graph_build_one()
106 			dev_err(xdev->dev, "invalid port number %u on %s\n",  in xvip_graph_build_one()
116 			dev_dbg(xdev->dev, "skipping sink port %s:%u\n",  in xvip_graph_build_one()
123 		if (link.remote_node == xdev->dev->of_node) {  in xvip_graph_build_one()
124 			dev_dbg(xdev->dev, "skipping DMA port %s:%u\n",  in xvip_graph_build_one()
131 		ent = xvip_graph_find_entity(xdev, link.remote_node);  in xvip_graph_build_one()
133 			dev_err(xdev->dev, "no entity found for %s\n",  in xvip_graph_build_one()
143 			dev_err(xdev->dev, "invalid port number %u on %s\n",  in xvip_graph_build_one()
155 		dev_dbg(xdev->dev, "creating %s:%u -> %s:%u link\n",  in xvip_graph_build_one()
163 			dev_err(xdev->dev,  in xvip_graph_build_one()
176 xvip_graph_find_dma(struct xvip_composite_device *xdev, unsigned int port)  in xvip_graph_find_dma()  argument
180 	list_for_each_entry(dma, &xdev->dmas, list) {  in xvip_graph_find_dma()
188 static int xvip_graph_build_dma(struct xvip_composite_device *xdev)  in xvip_graph_build_dma()  argument
191 	struct device_node *node = xdev->dev->of_node;  in xvip_graph_build_dma()
203 	dev_dbg(xdev->dev, "creating links for DMA engines\n");  in xvip_graph_build_dma()
214 		dev_dbg(xdev->dev, "processing endpoint %s\n", ep->full_name);  in xvip_graph_build_dma()
218 			dev_err(xdev->dev, "failed to parse link for %s\n",  in xvip_graph_build_dma()
224 		dma = xvip_graph_find_dma(xdev, link.local_port);  in xvip_graph_build_dma()
226 			dev_err(xdev->dev, "no DMA engine found for port %u\n",  in xvip_graph_build_dma()
233 		dev_dbg(xdev->dev, "creating link for DMA engine %s\n",  in xvip_graph_build_dma()
237 		ent = xvip_graph_find_entity(xdev, link.remote_node);  in xvip_graph_build_dma()
239 			dev_err(xdev->dev, "no entity found for %s\n",  in xvip_graph_build_dma()
247 			dev_err(xdev->dev, "invalid port number %u on %s\n",  in xvip_graph_build_dma()
269 		dev_dbg(xdev->dev, "creating %s:%u -> %s:%u link\n",  in xvip_graph_build_dma()
277 			dev_err(xdev->dev,  in xvip_graph_build_dma()
291 	struct xvip_composite_device *xdev =  in xvip_graph_notify_complete()  local
296 	dev_dbg(xdev->dev, "notify complete, all subdevs registered\n");  in xvip_graph_notify_complete()
299 	list_for_each_entry(entity, &xdev->entities, list) {  in xvip_graph_notify_complete()
300 		ret = xvip_graph_build_one(xdev, entity);  in xvip_graph_notify_complete()
306 	ret = xvip_graph_build_dma(xdev);  in xvip_graph_notify_complete()
310 	ret = v4l2_device_register_subdev_nodes(&xdev->v4l2_dev);  in xvip_graph_notify_complete()
312 		dev_err(xdev->dev, "failed to register subdev nodes\n");  in xvip_graph_notify_complete()
321 	struct xvip_composite_device *xdev =  in xvip_graph_notify_bound()  local
328 	list_for_each_entry(entity, &xdev->entities, list) {  in xvip_graph_notify_bound()
333 			dev_err(xdev->dev, "duplicate subdev for node %s\n",  in xvip_graph_notify_bound()
338 		dev_dbg(xdev->dev, "subdev %s bound\n", subdev->name);  in xvip_graph_notify_bound()
344 	dev_err(xdev->dev, "no entity for subdev %s\n", subdev->name);  in xvip_graph_notify_bound()
348 static int xvip_graph_parse_one(struct xvip_composite_device *xdev,  in xvip_graph_parse_one()  argument
357 	dev_dbg(xdev->dev, "parsing node %s\n", node->full_name);  in xvip_graph_parse_one()
367 		dev_dbg(xdev->dev, "handling endpoint %s\n", ep->full_name);  in xvip_graph_parse_one()
376 		if (remote == xdev->dev->of_node ||  in xvip_graph_parse_one()
377 		    xvip_graph_find_entity(xdev, remote)) {  in xvip_graph_parse_one()
382 		entity = devm_kzalloc(xdev->dev, sizeof(*entity), GFP_KERNEL);  in xvip_graph_parse_one()
392 		list_add_tail(&entity->list, &xdev->entities);  in xvip_graph_parse_one()
393 		xdev->num_subdevs++;  in xvip_graph_parse_one()
400 static int xvip_graph_parse(struct xvip_composite_device *xdev)  in xvip_graph_parse()  argument
411 	ret = xvip_graph_parse_one(xdev, xdev->dev->of_node);  in xvip_graph_parse()
415 	list_for_each_entry(entity, &xdev->entities, list) {  in xvip_graph_parse()
416 		ret = xvip_graph_parse_one(xdev, entity->node);  in xvip_graph_parse()
424 static int xvip_graph_dma_init_one(struct xvip_composite_device *xdev,  in xvip_graph_dma_init_one()  argument
446 	dma = devm_kzalloc(xdev->dev, sizeof(*dma), GFP_KERNEL);  in xvip_graph_dma_init_one()
450 	ret = xvip_dma_init(xdev, dma, type, index);  in xvip_graph_dma_init_one()
452 		dev_err(xdev->dev, "%s initialization failed\n",  in xvip_graph_dma_init_one()
457 	list_add_tail(&dma->list, &xdev->dmas);  in xvip_graph_dma_init_one()
459 	xdev->v4l2_caps |= type == V4L2_BUF_TYPE_VIDEO_CAPTURE  in xvip_graph_dma_init_one()
465 static int xvip_graph_dma_init(struct xvip_composite_device *xdev)  in xvip_graph_dma_init()  argument
471 	ports = of_get_child_by_name(xdev->dev->of_node, "ports");  in xvip_graph_dma_init()
473 		dev_err(xdev->dev, "ports node not present\n");  in xvip_graph_dma_init()
478 		ret = xvip_graph_dma_init_one(xdev, port);  in xvip_graph_dma_init()
486 static void xvip_graph_cleanup(struct xvip_composite_device *xdev)  in xvip_graph_cleanup()  argument
493 	v4l2_async_notifier_unregister(&xdev->notifier);  in xvip_graph_cleanup()
495 	list_for_each_entry_safe(entity, entityp, &xdev->entities, list) {  in xvip_graph_cleanup()
500 	list_for_each_entry_safe(dma, dmap, &xdev->dmas, list) {  in xvip_graph_cleanup()
506 static int xvip_graph_init(struct xvip_composite_device *xdev)  in xvip_graph_init()  argument
515 	ret = xvip_graph_dma_init(xdev);  in xvip_graph_init()
517 		dev_err(xdev->dev, "DMA initialization failed\n");  in xvip_graph_init()
522 	ret = xvip_graph_parse(xdev);  in xvip_graph_init()
524 		dev_err(xdev->dev, "graph parsing failed\n");  in xvip_graph_init()
528 	if (!xdev->num_subdevs) {  in xvip_graph_init()
529 		dev_err(xdev->dev, "no subdev found in graph\n");  in xvip_graph_init()
534 	num_subdevs = xdev->num_subdevs;  in xvip_graph_init()
535 	subdevs = devm_kzalloc(xdev->dev, sizeof(*subdevs) * num_subdevs,  in xvip_graph_init()
543 	list_for_each_entry(entity, &xdev->entities, list)  in xvip_graph_init()
546 	xdev->notifier.subdevs = subdevs;  in xvip_graph_init()
547 	xdev->notifier.num_subdevs = num_subdevs;  in xvip_graph_init()
548 	xdev->notifier.bound = xvip_graph_notify_bound;  in xvip_graph_init()
549 	xdev->notifier.complete = xvip_graph_notify_complete;  in xvip_graph_init()
551 	ret = v4l2_async_notifier_register(&xdev->v4l2_dev, &xdev->notifier);  in xvip_graph_init()
553 		dev_err(xdev->dev, "notifier registration failed\n");  in xvip_graph_init()
561 		xvip_graph_cleanup(xdev);  in xvip_graph_init()
570 static void xvip_composite_v4l2_cleanup(struct xvip_composite_device *xdev)  in xvip_composite_v4l2_cleanup()  argument
572 	v4l2_device_unregister(&xdev->v4l2_dev);  in xvip_composite_v4l2_cleanup()
573 	media_device_unregister(&xdev->media_dev);  in xvip_composite_v4l2_cleanup()
576 static int xvip_composite_v4l2_init(struct xvip_composite_device *xdev)  in xvip_composite_v4l2_init()  argument
580 	xdev->media_dev.dev = xdev->dev;  in xvip_composite_v4l2_init()
581 	strlcpy(xdev->media_dev.model, "Xilinx Video Composite Device",  in xvip_composite_v4l2_init()
582 		sizeof(xdev->media_dev.model));  in xvip_composite_v4l2_init()
583 	xdev->media_dev.hw_revision = 0;  in xvip_composite_v4l2_init()
585 	ret = media_device_register(&xdev->media_dev);  in xvip_composite_v4l2_init()
587 		dev_err(xdev->dev, "media device registration failed (%d)\n",  in xvip_composite_v4l2_init()
592 	xdev->v4l2_dev.mdev = &xdev->media_dev;  in xvip_composite_v4l2_init()
593 	ret = v4l2_device_register(xdev->dev, &xdev->v4l2_dev);  in xvip_composite_v4l2_init()
595 		dev_err(xdev->dev, "V4L2 device registration failed (%d)\n",  in xvip_composite_v4l2_init()
597 		media_device_unregister(&xdev->media_dev);  in xvip_composite_v4l2_init()
610 	struct xvip_composite_device *xdev;  in xvip_composite_probe()  local
613 	xdev = devm_kzalloc(&pdev->dev, sizeof(*xdev), GFP_KERNEL);  in xvip_composite_probe()
614 	if (!xdev)  in xvip_composite_probe()
617 	xdev->dev = &pdev->dev;  in xvip_composite_probe()
618 	INIT_LIST_HEAD(&xdev->entities);  in xvip_composite_probe()
619 	INIT_LIST_HEAD(&xdev->dmas);  in xvip_composite_probe()
621 	ret = xvip_composite_v4l2_init(xdev);  in xvip_composite_probe()
625 	ret = xvip_graph_init(xdev);  in xvip_composite_probe()
629 	platform_set_drvdata(pdev, xdev);  in xvip_composite_probe()
631 	dev_info(xdev->dev, "device registered\n");  in xvip_composite_probe()
636 	xvip_composite_v4l2_cleanup(xdev);  in xvip_composite_probe()
642 	struct xvip_composite_device *xdev = platform_get_drvdata(pdev);  in xvip_composite_remove()  local
644 	xvip_graph_cleanup(xdev);  in xvip_composite_remove()
645 	xvip_composite_v4l2_cleanup(xdev);  in xvip_composite_remove()