Re: [PATCH] dt-bindings: i2c: Remove obsolete i2c.txt

[Wolfram Sang <wsa+renesas@sang-engineering.com>]

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Hi Rob,

> > * In the schema, "clock-frequency" has a minimum of 1kHz and a maximum
> >   of 3MHz. Why? The specs do not say anything about a minimum freq and
> >   fastest speed mentioned in the docs is 5Mhz (Ultra fast mode).
> 
> IIRC, the high speed mode originally topped out at 3MHz. I guess
> that's been revised.

Hs-mode has a max of 3.4MHz...

> 
> We can drop the minimum.

... but I see you changed min/max now to 1/5000000. That's what I would
have suggested as well.


> > * new binding "i2c-scl-clk-low-timeout-us" has a description which I do
> >   not understand. What is a waiting state?
> 
> Shrug. May have to look at the MPC h/w that uses the property.

I will also have another look. My gut feeling is that the binding is
okay, only the description might need an update.

> >
> > * new binding "no-detect" is broken. At the least, it should be named
> >   something like "bus-fully-described" and then the OS can decide to
> >   leave out auto-detection mechanisms. If you are interested in the
> >   latter, you can simply disable class based instantiation on the host
> >   controller. No need to describe this in DT.
> 
> I've reverted the property now.

Cool, thanks!

Kind regards,

   Wolfram


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