linux-kernel - Re: [PATCH v2 00/10] staging: media: zoran: fusion in one module

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Date:   Mon, 25 Oct 2021 16:21:12 +0200
From:   LABBE Corentin <clabbe@...libre.com>
To:     Hans Verkuil <hverkuil@...all.nl>
Cc:     mchehab@...nel.org, gregkh@...uxfoundation.org,
        linux-kernel@...r.kernel.org, linux-media@...r.kernel.org,
        linux-staging@...ts.linux.dev, mjpeg-users@...ts.sourceforge.net
Subject: Re: [PATCH v2 00/10] staging: media: zoran: fusion in one module

Le Mon, Oct 25, 2021 at 02:45:02PM +0200, Hans Verkuil a écrit :
> Hi Corentin,
> 
> On 13/10/2021 20:58, Corentin Labbe wrote:
> > Hello
> > 
> > The main change of this serie is to fusion all zoran related modules in
> > one.
> > This fixes the load order problem when everything is built-in.
> > 
> > Regards
> > 
> > Changes since v1:
> > - add missing debugfs cleaning
> > - clean some remaining module_get/put functions which made impossible to
> >   remove the zoran module
> > - added the two latest patchs
> 
> Something weird is wrong with this series. I have a DC30, but loading this with:
> 
> modprobe zr36067 card=3
> 
> results in this error message in the kernel log:
> 
> [   58.645557] zr36067: module is from the staging directory, the quality is unknown, you have been warned.
> [   58.646658] zr36067 0000:03:00.0: Zoran MJPEG board driver version 0.10.1
> [   58.646793] zr36067 0000:03:00.0: Zoran ZR36057 (rev 1), irq: 18, memory: 0xf4000000
> [   58.648821] zr36067 0000:03:00.0: Initializing i2c bus...
> [   58.662420] vpx3220 22-0047: vpx3216b found @ 0x8e (DC30[0])
> [   58.737445] zr36067 0000:03:00.0: Fail to get encoder
> 
> This works before, so why this is now failing is not clear to me.
> 
> It does work with 'card=0', but I really have a DC30.
> 
> If I test with 'card=0' then the rmmod issue is now solved.

Everything normal, since card 0 does not have encoder.
Could you check that adv7175 is compiled ?

I got the same problem with my DC10+ where saa7110 was not compiled.
This issue was reproduced randomly and I have no explanation. (kconfig problem ?)

Regards