Hi Pavel,

> -----Original Message-----
> From: Pavel Machek <pavel@denx.de>
> Sent: 10 March 2021 09:39
> To: Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>
> Cc: Pavel Machek <pavel@denx.de>; cip-dev@lists.cip-project.org; Nobuhiro Iwamatsu
> <nobuhiro1.iwamatsu@toshiba.co.jp>; Biju Das <biju.das.jz@bp.renesas.com>
> Subject: Re: [PATCH 4.19.y-cip 12/40] media: dt-bindings: media: i2c: Add IMX219 CMOS sensor binding
> 
> Hi!
> 
> > > > +description: |-
> > > > +  The Sony imx219 is a 1/4.0-inch CMOS active pixel digital image sensor
> > >
> > > I assume it is 0.25 inch sensor? 1/4 inch or 0.25 inch would be
> > > understandable, but 1/4.0 is kind of strange.
> > >
> > Agree with you here, but looking at the document [1] its referred the same way "1/4.0".
> >
> > [1] http://www.opensourceinstruments.com/Electronics/Data/IMX219PQ.pdf
> 
> It is refered as "Type 1/4.0" and I'm not really sure what it means.
> 
> 1/4 inch is 6.35mm, but document states it is 4.6mm.
> 
> https://www.photoreview.com.au/tips/buying/unravelling-sensor-sizes/
>
Thanks for the pointer.

> explains this system, but they use 1/4", not 1/4.0, and it translates
> that to 4.5mm.
> 
> I guess easiest way is to say it is "4.8mm CMOS active pixel digital
> image sensor" and forget about confusing inch values.
> 
Totally agree with you (^^4.5mm).

Cheers,
Prabhakar

> Best regards,
> 								Pavel
> --
> DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany