linux-kernel - Re: [PATCH] media: ipu-bridge: fix ipu6 Kconfig dependencies

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Message-ID: <ZqdGw9dIGameP2j9@kekkonen.localdomain>
Date: Mon, 29 Jul 2024 07:37:39 +0000
From: Sakari Ailus <sakari.ailus@...ux.intel.com>
To: Arnd Bergmann <arnd@...db.de>
Cc: Arnd Bergmann <arnd@...nel.org>, Bingbu Cao <bingbu.cao@...el.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Hans Verkuil <hverkuil-cisco@...all.nl>,
	Andreas Helbech Kleist <andreaskleist@...il.com>,
	Tianshu Qiu <tian.shu.qiu@...el.com>, linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] media: ipu-bridge: fix ipu6 Kconfig dependencies

Hi Arnd,

On Mon, Jul 29, 2024 at 09:24:23AM +0200, Arnd Bergmann wrote:
> On Mon, Jul 29, 2024, at 09:03, Sakari Ailus wrote:
> >> To make it consistent with the other IPU drivers as well as avoid this warning,
> >> change the 'select' into 'depends on'.
> >
> > Thanks for the patch. I'm not sure how I managed to miss the IPU6 driver...
> 
> The driver was only adding in 6.10, so your patch was correct
> at the time.
> 
> > I think we also need, besides IPU_BRIDGE, || !IPU_BRIDGE, as the IPU_BRIDGE
> > has additional dependencies (I2C) compared to VIDEO_INTEL_IPU6. I'll add
> > that while applying. Please let me know if you have concerns.
> 
> Makes sense, yes. I went with a hard dependency since that stays
> close to the current version with the select. I tried build-testing
> IPU6 now with IPU_BRIDGE=n and I2C=n/I2C=m, which works fine.
> 
> However, the testing showed that IPU6 also missed a 'select AUXILIARY_BUS',
> which I had not found in randconfig testing because that usually gets
> selected by one of is other 30 users.
> 
> Since you are changing my patch already, maybe you can also add
> that at the same time. Thanks,

Well, yes. I got an lkp test report on this and wrote a patch to address
it:
<URL:https://lore.kernel.org/linux-media/20240729071026.3775341-1-sakari.ailus@linux.intel.com/T/#u>.

I'll send a PR on the two in a few hours if there are no further issues,
hoping to get it to rc2.

-- 
Kind regards,

Sakari Ailus