47 	struct sun4i_csi *csi = container_of(notifier, struct sun4i_csi,  in sun4i_csi_notify_bound()  local
50 	csi->src_subdev = subdev;  in sun4i_csi_notify_bound()
51 	csi->src_pad = media_entity_get_fwnode_pad(&subdev->entity,  in sun4i_csi_notify_bound()
54 	if (csi->src_pad < 0) {  in sun4i_csi_notify_bound()
55 		dev_err(csi->dev, "Couldn't find output pad for subdev %s\n",  in sun4i_csi_notify_bound()
57 		return csi->src_pad;  in sun4i_csi_notify_bound()
60 	dev_dbg(csi->dev, "Bound %s pad: %d\n", subdev->name, csi->src_pad);  in sun4i_csi_notify_bound()
66 	struct sun4i_csi *csi = container_of(notifier, struct sun4i_csi,  in sun4i_csi_notify_complete()  local
68 	struct v4l2_subdev *subdev = &csi->subdev;  in sun4i_csi_notify_complete()
69 	struct video_device *vdev = &csi->vdev;  in sun4i_csi_notify_complete()
72 	ret = v4l2_device_register_subdev(&csi->v4l, subdev);  in sun4i_csi_notify_complete()
76 	ret = sun4i_csi_v4l2_register(csi);  in sun4i_csi_notify_complete()
80 	ret = media_device_register(&csi->mdev);  in sun4i_csi_notify_complete()
92 	ret = media_create_pad_link(&csi->src_subdev->entity, csi->src_pad,  in sun4i_csi_notify_complete()
99 	ret = v4l2_device_register_subdev_nodes(&csi->v4l);  in sun4i_csi_notify_complete()
106 	media_device_unregister(&csi->mdev);  in sun4i_csi_notify_complete()
116 static int sun4i_csi_notifier_init(struct sun4i_csi *csi)  in sun4i_csi_notifier_init()  argument
124 	v4l2_async_notifier_init(&csi->notifier);  in sun4i_csi_notifier_init()
126 	ep = fwnode_graph_get_endpoint_by_id(dev_fwnode(csi->dev), 0, 0,  in sun4i_csi_notifier_init()
135 	csi->bus = vep.bus.parallel;  in sun4i_csi_notifier_init()
137 	ret = v4l2_async_notifier_add_fwnode_remote_subdev(&csi->notifier,  in sun4i_csi_notifier_init()
138 							   ep, &csi->asd);  in sun4i_csi_notifier_init()
142 	csi->notifier.ops = &sun4i_csi_notify_ops;  in sun4i_csi_notifier_init()
153 	struct sun4i_csi *csi;  in sun4i_csi_probe()  local
158 	csi = devm_kzalloc(&pdev->dev, sizeof(*csi), GFP_KERNEL);  in sun4i_csi_probe()
159 	if (!csi)  in sun4i_csi_probe()
161 	platform_set_drvdata(pdev, csi);  in sun4i_csi_probe()
162 	csi->dev = &pdev->dev;  in sun4i_csi_probe()
163 	subdev = &csi->subdev;  in sun4i_csi_probe()
164 	vdev = &csi->vdev;  in sun4i_csi_probe()
166 	csi->traits = of_device_get_match_data(&pdev->dev);  in sun4i_csi_probe()
167 	if (!csi->traits)  in sun4i_csi_probe()
181 	if (of_find_property(csi->dev->of_node, "interconnects", NULL)) {  in sun4i_csi_probe()
182 		ret = of_dma_configure(csi->dev, csi->dev->of_node, true);  in sun4i_csi_probe()
191 		ret = dma_direct_set_offset(csi->dev, PHYS_OFFSET, 0, SZ_4G);  in sun4i_csi_probe()
197 	csi->mdev.dev = csi->dev;  in sun4i_csi_probe()
198 	strscpy(csi->mdev.model, "Allwinner Video Capture Device",  in sun4i_csi_probe()
199 		sizeof(csi->mdev.model));  in sun4i_csi_probe()
200 	csi->mdev.hw_revision = 0;  in sun4i_csi_probe()
201 	snprintf(csi->mdev.bus_info, sizeof(csi->mdev.bus_info), "platform:%s",  in sun4i_csi_probe()
202 		 dev_name(csi->dev));  in sun4i_csi_probe()
203 	media_device_init(&csi->mdev);  in sun4i_csi_probe()
204 	csi->v4l.mdev = &csi->mdev;  in sun4i_csi_probe()
207 	csi->regs = devm_ioremap_resource(&pdev->dev, res);  in sun4i_csi_probe()
208 	if (IS_ERR(csi->regs))  in sun4i_csi_probe()
209 		return PTR_ERR(csi->regs);  in sun4i_csi_probe()
215 	csi->bus_clk = devm_clk_get(&pdev->dev, "bus");  in sun4i_csi_probe()
216 	if (IS_ERR(csi->bus_clk)) {  in sun4i_csi_probe()
218 		return PTR_ERR(csi->bus_clk);  in sun4i_csi_probe()
221 	if (csi->traits->has_isp) {  in sun4i_csi_probe()
222 		csi->isp_clk = devm_clk_get(&pdev->dev, "isp");  in sun4i_csi_probe()
223 		if (IS_ERR(csi->isp_clk)) {  in sun4i_csi_probe()
225 			return PTR_ERR(csi->isp_clk);  in sun4i_csi_probe()
229 	csi->ram_clk = devm_clk_get(&pdev->dev, "ram");  in sun4i_csi_probe()
230 	if (IS_ERR(csi->ram_clk)) {  in sun4i_csi_probe()
232 		return PTR_ERR(csi->ram_clk);  in sun4i_csi_probe()
235 	csi->rst = devm_reset_control_get(&pdev->dev, NULL);  in sun4i_csi_probe()
236 	if (IS_ERR(csi->rst)) {  in sun4i_csi_probe()
238 		return PTR_ERR(csi->rst);  in sun4i_csi_probe()
246 	snprintf(subdev->name, sizeof(subdev->name), "sun4i-csi-0");  in sun4i_csi_probe()
247 	v4l2_set_subdevdata(subdev, csi);  in sun4i_csi_probe()
249 	csi->subdev_pads[CSI_SUBDEV_SINK].flags =  in sun4i_csi_probe()
251 	csi->subdev_pads[CSI_SUBDEV_SOURCE].flags = MEDIA_PAD_FL_SOURCE;  in sun4i_csi_probe()
253 				     csi->subdev_pads);  in sun4i_csi_probe()
257 	csi->vdev_pad.flags = MEDIA_PAD_FL_SINK | MEDIA_PAD_FL_MUST_CONNECT;  in sun4i_csi_probe()
259 	ret = media_entity_pads_init(&vdev->entity, 1, &csi->vdev_pad);  in sun4i_csi_probe()
263 	ret = sun4i_csi_dma_register(csi, irq);  in sun4i_csi_probe()
267 	ret = sun4i_csi_notifier_init(csi);  in sun4i_csi_probe()
271 	ret = v4l2_async_notifier_register(&csi->v4l, &csi->notifier);  in sun4i_csi_probe()
273 		dev_err(csi->dev, "Couldn't register our notifier.\n");  in sun4i_csi_probe()
282 	media_device_unregister(&csi->mdev);  in sun4i_csi_probe()
283 	sun4i_csi_dma_unregister(csi);  in sun4i_csi_probe()
286 	media_device_cleanup(&csi->mdev);  in sun4i_csi_probe()
293 	struct sun4i_csi *csi = platform_get_drvdata(pdev);  in sun4i_csi_remove()  local
295 	v4l2_async_notifier_unregister(&csi->notifier);  in sun4i_csi_remove()
296 	v4l2_async_notifier_cleanup(&csi->notifier);  in sun4i_csi_remove()
297 	vb2_video_unregister_device(&csi->vdev);  in sun4i_csi_remove()
298 	media_device_unregister(&csi->mdev);  in sun4i_csi_remove()
299 	sun4i_csi_dma_unregister(csi);  in sun4i_csi_remove()
300 	media_device_cleanup(&csi->mdev);  in sun4i_csi_remove()
326 	struct sun4i_csi *csi = dev_get_drvdata(dev);  in sun4i_csi_runtime_resume()  local
328 	reset_control_deassert(csi->rst);  in sun4i_csi_runtime_resume()
329 	clk_prepare_enable(csi->bus_clk);  in sun4i_csi_runtime_resume()
330 	clk_prepare_enable(csi->ram_clk);  in sun4i_csi_runtime_resume()
331 	clk_set_rate(csi->isp_clk, 80000000);  in sun4i_csi_runtime_resume()
332 	clk_prepare_enable(csi->isp_clk);  in sun4i_csi_runtime_resume()
334 	writel(1, csi->regs + CSI_EN_REG);  in sun4i_csi_runtime_resume()
341 	struct sun4i_csi *csi = dev_get_drvdata(dev);  in sun4i_csi_runtime_suspend()  local
343 	clk_disable_unprepare(csi->isp_clk);  in sun4i_csi_runtime_suspend()
344 	clk_disable_unprepare(csi->ram_clk);  in sun4i_csi_runtime_suspend()
345 	clk_disable_unprepare(csi->bus_clk);  in sun4i_csi_runtime_suspend()
347 	reset_control_assert(csi->rst);  in sun4i_csi_runtime_suspend()
362 		.name		= "sun4i-csi",