linux-kernel - Re: [RFC PATCH 00/12] media: ov5645: Add support for streams

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CA+V-a8svfVrjEjYbSko4eh6z_9kEkfwMHr0YHwaxEPWLKJBPyg@mail.gmail.com>
Date: Thu, 5 Sep 2024 11:51:22 +0100
From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
Cc: Sakari Ailus <sakari.ailus@...ux.intel.com>, 
	Laurent Pinchart <laurent.pinchart@...asonboard.com>, 
	Kieran Bingham <kieran.bingham@...asonboard.com>, 
	Jacopo Mondi <jacopo.mondi@...asonboard.com>, Mauro Carvalho Chehab <mchehab@...nel.org>, 
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-renesas-soc@...r.kernel.org, Biju Das <biju.das.jz@...renesas.com>, 
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>, 
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [RFC PATCH 00/12] media: ov5645: Add support for streams

Hi Tomi,

On Thu, Sep 5, 2024 at 11:29 AM Tomi Valkeinen
<tomi.valkeinen@...asonboard.com> wrote:
>
> On 05/09/2024 13:27, Lad, Prabhakar wrote:
> > Hi Tomi,
> >
> > On Thu, Sep 5, 2024 at 10:11 AM Tomi Valkeinen
> > <tomi.valkeinen@...asonboard.com> wrote:
> >>
> > <snip>
> >>> I think you actually want 1/0->0/0 routing. The error says that the sink
> >>> side device has routing which does not have a stream at stream ID 1, or
> >>> no routing support at all, which implies a single stream at stream ID 0.
> >>
> >> Looking at patch 12, there's something wrong with the approach here. Are
> >> you perhaps trying to define the CSI-2 VC with the streams?
> >>
> > Yes, based on the previous feedback received, I am implementing
> > virtual channels as streams. If this isn't the correct approach can
> > you please guide me on what we should be using to support virtual
> > channels?
>
> Can you describe what kind of hardware you have and how the VCs are
> supposed to be configured and used there?
>

 __________________                       ______________
    _____________________
|                                     |                     |
                |                   |
      |
| OV5645   Sensor        |                     |  RZ/G2L CSI2   |
             |  RZ/G2L CRU                 |
| 1ch out of 4x VC         |---------------> |   4x VC
|-------------->|  1Ch capture out 4xVC  |
|__________________|                      |_____________|
     |____________________|

Cheers,
Prabhakar