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SubjectRe: [RFC PATCH v2 08/15] usb:cdns3: Implements device operations part of the API


Sekhar Nori <> writes:
>>>>> especially since you already know there is going to be another revision
>>>>> of hardware. It has the advantage that one can easily grep to see which
>>>>> hardware is running current version of controller without having access
>>>>> to the hardware itself. Becomes useful later on when its time to
>>>>> clean-up unused code when boards become obsolete or for requesting
>>>>> testing help.
>>>> This doesn't sound like a very strong argument, actually. Specially when
>>>> you consider that, since driver will do revision checking based on
>>>> revision register, you already have strings to grep. Moreover, we don't
>>>> usually drop support just like that.
>>> AFAICS, it is impossible to know just by grep'ing if there is any
>>> hardware still supported in kernel and using DWC3_REVISION_194A, for
>>> example.
>> but why do you even care?
> When, for example, its coming in the way of some clean-up I am
> attempting to do.

can you share one example when a revision check got in the way of a
cleanup? I fail to see a situation when we need to drop support to older
platforms just to clean some code up.

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