From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: Jacopo Mondi <jacopo@jmondi.org>
Cc: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
linux-media@vger.kernel.org,
Jacopo Mondi <jacopo+renesas@jmondi.org>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
niklas.soderlund+renesas@ragnatech.se,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Pratyush Yadav <p.yadav@ti.com>,
Lokesh Vutla <lokeshvutla@ti.com>,
Michal Simek <michal.simek@xilinx.com>
Subject: Re: [PATCH v7 08/27] media: entity: Add has_route entity operation
Date: Mon, 26 Jul 2021 21:13:07 +0300 [thread overview]
Message-ID: <20210726181307.GF3@paasikivi.fi.intel.com> (raw)
In-Reply-To: <20210712074220.wwpullv252hdwpnv@uno.localdomain>
On Mon, Jul 12, 2021 at 09:42:20AM +0200, Jacopo Mondi wrote:
> Hi Sakari,
>
> On Sun, Jul 11, 2021 at 06:26:26PM +0300, Sakari Ailus wrote:
> > On Thu, Jul 08, 2021 at 02:43:10PM +0200, Jacopo Mondi wrote:
> > > Hi Tomi,
> > > a small note
> > >
> > > On Mon, May 24, 2021 at 01:43:49PM +0300, Tomi Valkeinen wrote:
> > > > From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> > > >
> > > > The optional operation can be used by entities to report whether two
> > > > pads are internally connected.
> > > >
> > > > While at there, fix a Sphinx compiler warning in a comment block a few
> > > > lines above.
> > > >
> > > > Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> > > > Signed-off-by: Michal Simek <michal.simek@xilinx.com>
> > > > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
> > > > Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
> > > > Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
> > > > ---
> > > > include/media/media-entity.h | 7 +++++++
> > > > 1 file changed, 7 insertions(+)
> > > >
> > > > diff --git a/include/media/media-entity.h b/include/media/media-entity.h
> > > > index 516d73a2941e..ad4020b2df65 100644
> > > > --- a/include/media/media-entity.h
> > > > +++ b/include/media/media-entity.h
> > > > @@ -187,6 +187,7 @@ enum media_pad_signal_type {
> > > > * @flags: Pad flags, as defined in
> > > > * :ref:`include/uapi/linux/media.h <media_header>`
> > > > * (seek for ``MEDIA_PAD_FL_*``)
> > > > + *
> > > > * .. note::
> > > > *
> > > > * @stream_count reference count must never be negative, but is a signed
> > > > @@ -214,6 +215,10 @@ struct media_pad {
> > > > * @link_validate: Return whether a link is valid from the entity point of
> > > > * view. The media_pipeline_start() function
> > > > * validates all links by calling this operation. Optional.
> > > > + * @has_route: Return whether a route exists inside the entity between
> > > > + * two given pads. Pads are passed to the operation ordered
> > > > + * by index. Optional: If the operation isn't implemented
> > >
> > > According to the next patch, this doesn't seem to be 'Optional:' :)
> >
> > How? Few drivers will implement this in the end, and that's been taken into
> > account in code AFAIU.
>
> What I meant is that it's not optional that all pads are considered
> connected if the op is not implemented. Or maybe this should have read
> as "Implementing the operation is optional" ?
Fine for me. I don't think the old text was bad either though.
--
Sakari Ailus
next prev parent reply other threads:[~2021-07-26 18:13 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-24 10:43 [PATCH v7 00/27] v4l: subdev internal routing and streams Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 01/27] media: entity: Use pad as a starting point for graph walk Tomi Valkeinen
2021-07-08 10:45 ` Jacopo Mondi
2021-05-24 10:43 ` [PATCH v7 02/27] media: entity: Use pads instead of entities in the media graph walk stack Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 03/27] media: entity: Walk the graph based on pads Tomi Valkeinen
2021-07-08 10:48 ` Jacopo Mondi
2021-05-24 10:43 ` [PATCH v7 04/27] v4l: mc: Start walk from a specific pad in use count calculation Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 05/27] media: entity: Add iterator helper for entity pads Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 06/27] media: entity: Move the pipeline from entity to pads Tomi Valkeinen
2021-07-08 13:11 ` Jacopo Mondi
2021-07-16 6:19 ` Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 07/27] media: entity: Use pad as the starting point for a pipeline Tomi Valkeinen
2021-07-08 12:36 ` Jacopo Mondi
2021-07-11 15:25 ` Sakari Ailus
2021-07-16 6:35 ` Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 08/27] media: entity: Add has_route entity operation Tomi Valkeinen
2021-07-08 12:43 ` Jacopo Mondi
2021-07-11 15:26 ` Sakari Ailus
2021-07-12 7:42 ` Jacopo Mondi
2021-07-26 18:13 ` Sakari Ailus [this message]
2021-05-24 10:43 ` [PATCH v7 09/27] media: entity: Add media_entity_has_route() function Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 10/27] media: entity: Use routing information during graph traversal Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 11/27] media: entity: Skip link validation for pads to which there is no route Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 12/27] media: entity: Add an iterator helper for connected pads Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 13/27] media: entity: Add only connected pads to the pipeline Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 14/27] media: entity: Add debug information in graph walk route check Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 15/27] v4l: Add bus type to frame descriptors Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 16/27] v4l: Add CSI-2 bus configuration " Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 17/27] v4l: Add stream to frame descriptor Tomi Valkeinen
2021-05-24 10:43 ` [PATCH v7 18/27] media: Documentation: Add GS_ROUTING documentation Tomi Valkeinen
2021-05-24 10:44 ` [PATCH v7 19/27] v4l: subdev: Add [GS]_ROUTING subdev ioctls and operations Tomi Valkeinen
2021-05-24 10:44 ` [PATCH v7 20/27] v4l: subdev: add V4L2_SUBDEV_ROUTE_FL_SOURCE Tomi Valkeinen
2021-06-05 22:44 ` Laurent Pinchart
2021-06-05 22:46 ` Laurent Pinchart
2021-07-02 7:49 ` Tomi Valkeinen
2021-05-24 10:44 ` [PATCH v7 21/27] v4l: subdev: routing kernel helper functions Tomi Valkeinen
2021-06-05 23:29 ` Laurent Pinchart
2021-07-11 15:48 ` Sakari Ailus
2021-05-24 10:44 ` [PATCH v7 22/27] v4l: subdev: add stream based configuration Tomi Valkeinen
2021-06-05 23:42 ` Laurent Pinchart
2021-07-02 8:56 ` Tomi Valkeinen
2021-05-24 10:44 ` [PATCH v7 23/27] v4l: subdev: add 'stream' to subdev ioctls Tomi Valkeinen
2021-06-05 23:46 ` Laurent Pinchart
2021-05-24 10:44 ` [PATCH v7 24/27] v4l: subdev: use streams in v4l2_subdev_link_validate() Tomi Valkeinen
2021-05-28 11:34 ` Tomi Valkeinen
2021-06-05 23:59 ` Laurent Pinchart
2021-07-09 10:02 ` Tomi Valkeinen
2021-05-24 10:44 ` [PATCH v7 25/27] v4l: subdev: add routing & stream config to v4l2_subdev_state Tomi Valkeinen
2021-06-06 0:01 ` Laurent Pinchart
2021-07-02 8:34 ` Tomi Valkeinen
2021-05-24 10:44 ` [PATCH v7 26/27] v4l: subdev: add V4L2_SUBDEV_FL_MULTIPLEXED Tomi Valkeinen
2021-05-24 10:44 ` [PATCH v7 27/27] v4l: subdev: increase V4L2_FRAME_DESC_ENTRY_MAX to 8 Tomi Valkeinen
2021-05-26 8:25 ` [PATCH v7 00/27] v4l: subdev internal routing and streams Tomi Valkeinen
2021-06-06 0:06 ` Laurent Pinchart
2021-07-09 15:18 ` Jacopo Mondi
2021-07-09 18:26 ` Tomi Valkeinen
2021-07-10 8:42 ` Jacopo Mondi
2021-07-12 8:19 ` Tomi Valkeinen
2021-07-23 10:21 ` Jacopo Mondi
2021-07-26 10:49 ` Tomi Valkeinen
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