[PATCH 4/5] [POWERPC] QE: implement support for the GPIO LIB API

[Grant Likely]

On Mon, Apr 21, 2008 at 8:49 AM, Anton Vorontsov
<avorontsov at ru.mvista.com> wrote:
>  > > Should this really be a arch_initcall()?  Would it be better for
>  > > platforms needing it to call it explicitly from one of the platform's
>  > > machine_arch_initcall()?  Otherwise it gets called for all platforms
>  > > in a multiplatform kernel.
>  >
>  > Ok, I'll place it into qe_reset().
>
>  Ugh, no, I can't. qe_reset() is called too early. And I don't like
>  having every QE board file to call this through machine_arch_initcall...
>  Hmm, what to do.. well, is this thaat bad to call this for every
>  platform?..

Its not great.  It has a boot time impact for every platform compiled
into the kernel.  The problem gets worse every time another block of
code uses this method.  Personally I prefer platform code calling it
explicitly.

Making it an of_platform device would also eliminate that problem, but
you'd need a method to synchronize the driver with its users.

I'm not going to raise a big stink about it, but the issue should not
be ignored.

Cheers,
g.

>
>
>
>  --
>  Anton Vorontsov
>  email: cbouatmailru at gmail.com
>  irc://irc.freenode.net/bd2
>



-- 
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.