[v7,1/3] media: i2c: ov772x: Parse endpoint properties
Commit Message
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>
---
drivers/media/i2c/ov772x.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
Comments
Hi Prabhakar,
On Fri, Oct 02, 2020 at 05:56:54PM +0100, Lad Prabhakar wrote:
> 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>
> ---
> drivers/media/i2c/ov772x.c | 33 +++++++++++++++++++++++++++++++++
> 1 file changed, 33 insertions(+)
>
> diff --git a/drivers/media/i2c/ov772x.c b/drivers/media/i2c/ov772x.c
> index 2cc6a678069a..b56f8d7609e6 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 +1350,33 @@ 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 };
This one gets over 80.
> + struct fwnode_handle *ep;
> + int ret;
> +
> + ep = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev),
> + NULL);
And this needs no newline.
> + 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 +1444,10 @@ 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;
Hi Sakari,
Thank you for the review.
On Fri, Oct 2, 2020 at 10:12 PM Sakari Ailus
<sakari.ailus@linux.intel.com> wrote:
>
> Hi Prabhakar,
>
> On Fri, Oct 02, 2020 at 05:56:54PM +0100, Lad Prabhakar wrote:
> > 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>
> > ---
> > drivers/media/i2c/ov772x.c | 33 +++++++++++++++++++++++++++++++++
> > 1 file changed, 33 insertions(+)
> >
> > diff --git a/drivers/media/i2c/ov772x.c b/drivers/media/i2c/ov772x.c
> > index 2cc6a678069a..b56f8d7609e6 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 +1350,33 @@ 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 };
>
> This one gets over 80.
>
Argh I need to adjust my checkpatch script
> > + struct fwnode_handle *ep;
> > + int ret;
> > +
> > + ep = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev),
> > + NULL);
>
> And this needs no newline.
>
Agreed.
Cheers,
Prabhakar
@@ -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 +1350,33 @@ 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 +1444,10 @@ 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;