linux-kernel - Re: [PATCH v3 3/4] media: i2c: add MAX96717 driver

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Message-ID: <ZdXYpc2csVnhtZH9@valkosipuli.retiisi.eu>
Date: Wed, 21 Feb 2024 11:04:05 +0000
From: Sakari Ailus <sakari.ailus@....fi>
To: Julien Massot <julien.massot@...labora.com>
Cc: linux-media@...r.kernel.org, kernel@...labora.com,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	mchehab@...nel.org, robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org
Subject: Re: [PATCH v3 3/4] media: i2c: add MAX96717 driver

Hi Julien,

On Wed, Feb 21, 2024 at 11:34:38AM +0100, Julien Massot wrote:
> Hi Sakari,
> 
> On 2/9/24 16:26, Sakari Ailus wrote:
> > Hi Julien,
> > 
> > On Thu, Jan 11, 2024 at 02:03:48PM +0100, Julien Massot wrote:
> > > This driver handle the MAX96717 serializer in tunnel mode.
> > > All incoming CSI traffic will be tunneled through the GMSL2
> > > link.
> > > 
> > > Signed-off-by: Julien Massot <julien.massot@...labora.com>
> > > ---
> > > Change since v2:
> > >   - Use CCI helpers instead of recoding register access
> > >   - add missing bitfield header
> > > ---
> > >   MAINTAINERS                  |   7 +
> > >   drivers/media/i2c/Kconfig    |  13 +
> > >   drivers/media/i2c/Makefile   |   1 +
> > >   drivers/media/i2c/max96717.c | 956 +++++++++++++++++++++++++++++++++++
> > >   4 files changed, 977 insertions(+)
> > >   create mode 100644 drivers/media/i2c/max96717.c
> > > 
> > > diff --git a/MAINTAINERS b/MAINTAINERS
> > > index 675e5d63a25b..a64a7932fe76 100644
> > > --- a/MAINTAINERS
> > > +++ b/MAINTAINERS
> > > @@ -13039,6 +13039,13 @@ S:	Maintained
> > >   F:	Documentation/devicetree/bindings/media/i2c/maxim,max96712.yaml
> > >   F:	drivers/staging/media/max96712/max96712.c
> > > +MAX96717 GMSL2 SERIALIZER DRIVER
> > > +M:	Julien Massot <julien.massot@...labora.com>
> > > +L:	linux-media@...r.kernel.org
> > > +S:	Maintained
> > > +F:	Documentation/devicetree/bindings/media/i2c/maxim,max96717f.yaml
> > 
> > What's that "f" for? It's in bindings but not in the name of the driver.
> > Not a typo I suppose? :-)
> 
> Indeed that's not a typo, the Maxim's GMSL2 chips are available under
> multiple
> variants:
> - MAX96717 which supports GMSL link speed 6 and 3Gbps and CSI lanes up to
> 2.5Gbps
> - MAX96717K which supports GMSL link speed 6 and 3Gbps and CSI lanes up to
> 1.5Gbps
> - MAX96717F which only supports GMSL link speed 3Gbps and CSI lanes up to
> 2.5Gbps
> 
> They have the same register mapping, so we should be able to add support for
> the other variants in the future.

I think you should probably do this for the bindings, too. I'd thus drop
"f" from the file name.

-- 
Regards,

Sakari Ailus