1 // SPDX-License-Identifier: GPL-2.0+
3 * Media driver for Freescale i.MX5/6 SOC
5 * Open Firmware parsing.
7 * Copyright (c) 2016 Mentor Graphics Inc.
9 #include <linux/of_platform.h>
10 #include <media/v4l2-ctrls.h>
11 #include <media/v4l2-device.h>
12 #include <media/v4l2-fwnode.h>
13 #include <media/v4l2-subdev.h>
14 #include <media/videobuf2-dma-contig.h>
15 #include <linux/of_graph.h>
16 #include <video/imx-ipu-v3.h>
17 #include "imx-media.h"
19 int imx_media_of_add_csi(struct imx_media_dev *imxmd,
20 struct device_node *csi_np)
22 struct v4l2_async_subdev *asd;
25 if (!of_device_is_available(csi_np)) {
26 dev_dbg(imxmd->md.dev, "%s: %pOFn not enabled\n", __func__,
31 /* add CSI fwnode to async notifier */
32 asd = v4l2_async_nf_add_fwnode(&imxmd->notifier,
33 of_fwnode_handle(csi_np),
34 struct v4l2_async_subdev);
38 dev_dbg(imxmd->md.dev, "%s: already added %pOFn\n",
44 EXPORT_SYMBOL_GPL(imx_media_of_add_csi);
46 int imx_media_add_of_subdevs(struct imx_media_dev *imxmd,
47 struct device_node *np)
49 struct device_node *csi_np;
53 csi_np = of_parse_phandle(np, "ports", i);
57 ret = imx_media_of_add_csi(imxmd, csi_np);
59 /* unavailable or already added is not an error */
60 if (ret == -ENODEV || ret == -EEXIST) {
65 /* other error, can't continue */
76 EXPORT_SYMBOL_GPL(imx_media_add_of_subdevs);