lkml.org 
[lkml]   [2020]   [Sep]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH v6 1/3] media: i2c: ov772x: Parse endpoint properties
HI Sakari,

Thank you for the review.

On Wed, Sep 30, 2020 at 12:45 PM Sakari Ailus
<sakari.ailus@linux.intel.com> wrote:
>
> Hi Prabhakar,
>
> On Thu, Sep 17, 2020 at 06:42:22PM +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>
> > ---
> > drivers/media/i2c/ov772x.c | 34 ++++++++++++++++++++++++++++++++++
> > 1 file changed, 34 insertions(+)
> >
> > diff --git a/drivers/media/i2c/ov772x.c b/drivers/media/i2c/ov772x.c
> > index 2cc6a678069a..f61a3f09ad64 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;
> > + 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;
> > + }
> > +
> > + bus_cfg.bus_type = V4L2_MBUS_PARALLEL;
>
> Please zero the entire struct, i.e. do this assignment in the declaration.
>
Agreed, but instead at the declaration I would prefer here as below,
since patch 2/3 has a comment related to backward compatibility with
the bindings. Is this OK with you ?
bus_cfg = (struct v4l2_fwnode_endpoint)
{ .bus_type = V4L2_MBUS_PARALLEL };

> You can also use v4l2_fwnode_endpoint_parse() if you're not using the link
> frequencies --- sensor drivers generally should but you could only add them
> as optional at this point (out of scope of this patch).
>
will stick with this for now :)

Cheers,
Prabhakar

\
 
 \ /
  Last update: 2020-09-30 14:21    [W:0.055 / U:0.548 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site