linux-kernel - Re: [PATCH 00/10] media: rcar: Minor cleanups and improvements

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] [day] [month] [year] [list]

Message-ID: <20250122170708.GD3436806@ragnatech.se>
Date: Wed, 22 Jan 2025 18:07:08 +0100
From: Niklas Söderlund <niklas.soderlund@...natech.se>
To: Jacopo Mondi <jacopo.mondi@...asonboard.com>
Cc: Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	linux-media@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/10] media: rcar: Minor cleanups and improvements

Hello Jacopo,

On 2025-01-22 12:57:13 +0100, Jacopo Mondi wrote:
> Hi Niklas,
> 
> On Wed, Jan 22, 2025 at 10:21:28AM +0100, Niklas Söderlund wrote:
> > On 2025-01-22 10:02:59 +0200, Tomi Valkeinen wrote:
> > > Hi,
> > >
> > > On 21/01/2025 23:24, Niklas Söderlund wrote:
> > > > Hi Tomi,
> > > >
> > > > Thanks for a great cleanup series!
> > > >
> > > > On 2025-01-20 15:10:33 +0200, Tomi Valkeinen wrote:
> > > > > I've started looking at multi-stream support, and came up with these
> > > > > while working towards streams.
> > > > >
> > > > >   Tomi
> > > > >
> > > > > Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@...asonboard.com>
> > > >
> > > > I have tested this in Gen2, Gen3 and Gen4 without noticing any
> > > > regressions. The log is now spammed with the helpful suggestion that the
> > > > CSI-2 TX subdevices shall implement V4L2_CID_LINK_FREQ control. This is
> > > > annoying but out of scope for this series, but would be nice at some
> > > > point.
> > > >
> > > >    [   37.421531] v4l2_get_link_freq: Link frequency estimated using pixel rate: result might be inaccurate
> > > >    [   37.430991] v4l2_get_link_freq: Consider implementing support for V4L2_CID_LINK_FREQ in the transmitter driver
> > >
> > > Which drivers need fixing? The staging max96712 is one (there seems to be a
> > > TODO there about it), and adv748x? I'm not going to work on that right now,
> > > but just collecting the details.
> >
> > Indeed adv748x is the other driver needing work here. The problem as I
> > recall it is that V4L2_CID_LINK_FREQ is a menu control, and adv748x
> > selects it link freq based on what it is outputting. But it's been some
> > time since I looked at this, maybe I recall incorrectly.
> >
> 
> Would this series help ?
> https://patchwork.kernel.org/project/linux-media/list/?series=926905

I think it would, it seems to perfectly fit the adv748x situation, 
awesome!

> 
> > >
> > > > For the whole series,
> > > >
> > > > Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>
> > > > Tested-by: Niklas Söderlund <niklas.soderlund+renesas@...natech.se>
> > >
> > > Thanks!
> > >
> > >  Tomi
> > >
> >
> > --
> > Kind Regards,
> > Niklas Söderlund
> >

-- 
Kind Regards,
Niklas Söderlund