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Re: [PATCH 03/12] wlcore: disable elp sleep while in plt mode

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On Tue, 2013-09-10 at 16:04 +0200, Eliad Peller wrote:
> On Tue, Sep 10, 2013 at 9:34 AM, Luca Coelho <luca@xxxxxxxxx> wrote:
> > On Tue, 2013-09-03 at 17:33 +0300, Eliad Peller wrote:
> >> From: Yair Shapira <yair.shapira@xxxxxx>
> >>
> >> We now disable elp sleep during plt mode to allow normal operation of
> >> plt tools such as calibrator.
> >>
> >> Having elp_sleep enabled during plt mode is actually not required and
> >> in fact it disrupt plt operations such as rx statistics etc.
> >>
> >> Signed-off-by: Yair Shapira <yair.shapira@xxxxxx>
> >> Signed-off-by: Eliad Peller <eliad@xxxxxxxxxx>
> >> ---
> >
> > I also had a comment internally about this one.  Why do we need this?
> > AFAICT this would never happen in real life, since the firmware is not
> > even loaded at this point.  Is there any real life situation where we
> > try to go into ELP while in PLT mode?
> >
> i'm not familiar with the whole plt process, but i guess some flows
> might indeed end up in elp (e.g. via wl1271_cmd_interrogate(), in
> order to read statistics)

Well, I don't think this would ever happen.  The PLT stuff is a
completely different firmware and, really, if it tries to go into ELP
mode it is a bug.

In any case, there probably is a bug somewhere if this was implemented
at all.  And applying it won't really hurt.  I'm just nagging because it
would be nice to know what caused this to become necessary.

--
Luca.

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