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| author | Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> | 2020-10-03 01:23:21 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-11-16 12:31:14 +0300 |
| commit | 8a10b4e3601eaefa4b7c8de9b62a0e15ccd4d99e (patch) | |
| tree | 72d5cbc43ba7590439c36ee5a1f4f1ba9b6ddcf1 | |
| parent | 055e124eec851996567910def94ead0aaac8fa36 (diff) | |
| download | linux-8a10b4e3601eaefa4b7c8de9b62a0e15ccd4d99e.tar.xz | |
media: i2c: ov772x: Parse endpoint properties
Parse endpoint properties using v4l2_fwnode_endpoint_alloc_parse()
to determine the bus type and store it in the driver structure.
Set bus_type to V4L2_MBUS_PARALLEL as it's the only supported one
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
| -rw-r--r-- | drivers/media/i2c/ov772x.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/media/i2c/ov772x.c b/drivers/media/i2c/ov772x.c index 2cc6a678069a..afe2446dfb68 100644 --- a/drivers/media/i2c/ov772x.c +++ b/drivers/media/i2c/ov772x.c @@ -31,6 +31,7 @@ #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-event.h> +#include <media/v4l2-fwnode.h> #include <media/v4l2-image-sizes.h> #include <media/v4l2-subdev.h> @@ -434,6 +435,7 @@ struct ov772x_priv { #ifdef CONFIG_MEDIA_CONTROLLER struct media_pad pad; #endif + enum v4l2_mbus_type bus_type; }; /* @@ -1348,6 +1350,34 @@ static const struct v4l2_subdev_ops ov772x_subdev_ops = { .pad = &ov772x_subdev_pad_ops, }; +static int ov772x_parse_dt(struct i2c_client *client, + struct ov772x_priv *priv) +{ + struct v4l2_fwnode_endpoint bus_cfg = { + .bus_type = V4L2_MBUS_PARALLEL + }; + struct fwnode_handle *ep; + int ret; + + ep = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev), NULL); + if (!ep) { + dev_err(&client->dev, "Endpoint node not found\n"); + return -EINVAL; + } + + ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); + if (ret) + goto error_fwnode_put; + + priv->bus_type = bus_cfg.bus_type; + v4l2_fwnode_endpoint_free(&bus_cfg); + +error_fwnode_put: + fwnode_handle_put(ep); + + return ret; +} + /* * i2c_driver function */ @@ -1415,6 +1445,10 @@ static int ov772x_probe(struct i2c_client *client) goto error_clk_put; } + ret = ov772x_parse_dt(client, priv); + if (ret) + goto error_clk_put; + ret = ov772x_video_probe(priv); if (ret < 0) goto error_gpio_put; |