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

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Message-ID: <c928e09a-751e-45af-8e57-f105b41df2be@ideasonboard.com>
Date: Thu, 5 Sep 2024 13:29:35 +0300
From: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To: "Lad, Prabhakar" <prabhakar.csengg@...il.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

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?

  Tomi