media: platform: replace of_graph_get_next_endpoint()

From DT point of view, in general, drivers should be asking for a
specific port number because their function is fixed in the binding.

of_graph_get_next_endpoint() doesn't match to this concept.

Simply replace

- of_graph_get_next_endpoint(xxx, NULL);
+ of_graph_get_endpoint_by_regs(xxx, 0, -1);

Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Kuninori Morimoto <[e-mail]>
Signed-off-by: Sakari Ailus <[e-mail]>
Signed-off-by: Hans Verkuil <[e-mail]>

drivers/media/platform/atmel/atmel-isi.c

···
 	isi->pdata.full_mode = 1;
 	isi->pdata.frate = ISI_CFG1_FRATE_CAPTURE_ALL;
 
-	np = of_graph_get_next_endpoint(np, NULL);
+	np = of_graph_get_endpoint_by_regs(np, 0, -1);
 	if (!np) {
 		dev_err(&pdev->dev, "Could not find the endpoint\n");
 		return -EINVAL;
···
 	struct device_node *ep;
 	int ret;
 
-	ep = of_graph_get_next_endpoint(isi->dev->of_node, NULL);
+	ep = of_graph_get_endpoint_by_regs(isi->dev->of_node, 0, -1);
 	if (!ep)
 		return -EINVAL;
 

drivers/media/platform/intel/pxa_camera.c

···
 		pcdev->mclk = mclk_rate;
 	}
 
-	np = of_graph_get_next_endpoint(np, NULL);
+	np = of_graph_get_endpoint_by_regs(np, 0, -1);
 	if (!np) {
 		dev_err(dev, "could not find endpoint\n");
 		return -EINVAL;

drivers/media/platform/samsung/exynos4-is/fimc-is.c

···
 		return -EINVAL;
 	}
 
-	ep = of_graph_get_next_endpoint(node, NULL);
+	ep = of_graph_get_endpoint_by_regs(node, 0, -1);
 	if (!ep)
 		return -ENXIO;
 

drivers/media/platform/samsung/exynos4-is/mipi-csis.c

···
 				 &state->max_num_lanes))
 		return -EINVAL;
 
-	node = of_graph_get_next_endpoint(node, NULL);
+	/* from port@3 or port@4 */
+	node = of_graph_get_endpoint_by_regs(node, -1, -1);
 	if (!node) {
 		dev_err(&pdev->dev, "No port node at %pOF\n",
 				pdev->dev.of_node);

drivers/media/platform/st/stm32/stm32-dcmi.c

···
 	struct device_node *ep;
 	int ret;
 
-	ep = of_graph_get_next_endpoint(dcmi->dev->of_node, NULL);
+	ep = of_graph_get_endpoint_by_regs(dcmi->dev->of_node, 0, -1);
 	if (!ep) {
 		dev_err(dcmi->dev, "Failed to get next endpoint\n");
 		return -EINVAL;
···
 				     "Could not get reset control\n");
 
 	/* Get bus characteristics from devicetree */
-	np = of_graph_get_next_endpoint(np, NULL);
+	np = of_graph_get_endpoint_by_regs(np, 0, -1);
 	if (!np) {
 		dev_err(&pdev->dev, "Could not find the endpoint\n");
 		return -ENODEV;

drivers/media/platform/ti/davinci/vpif.c

···
 	 * so their devices need to be registered manually here
 	 * for their legacy platform_drivers to work.
 	 */
-	endpoint = of_graph_get_next_endpoint(pdev->dev.of_node,
-					      endpoint);
+	endpoint = of_graph_get_endpoint_by_regs(pdev->dev.of_node, 0, -1);
 	if (!endpoint)
 		return 0;
 	of_node_put(endpoint);