[U-Boot] [RFC][Timer API] Revised Specification - Implementation details

[Wolfgang Denk <wd@denx.de>]

Dear Reinhard Meyer,

In message <4DE47046.3010703@emk-elektronik.de> you wrote:
> 
> Excuse me, but THIS API does not prevent the user to do a
> "(get_timer() - start) < timeout" inside the loop, making your argument moot.

You can be pretty sure that I will NAK any design that _prevents_ me
from doing this when I have specific reasons to do exactly this or
something similar.

It is definitely a good idea to provide simple and reliable ways for
standard tasks - but you also must provide the freedom to do things
differently when the standard way does not fit for a reason or
another.

This is also why I consider it mandatory that get_timer() (or
time_read() or whatever it is going t be called) uses a standard unit
of time like milliseconds, and not som random internal scaling.


Best regards,

Wolfgang Denk

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