Re: [PATCH] Documentation: dt: bindings: TI WiLink modules

From: Felipe Balbi
Date: Tue Jun 25 2013 - 09:08:05 EST


On Tue, Jun 25, 2013 at 02:56:10PM +0300, Luciano Coelho wrote:
> On Tue, 2013-06-25 at 14:12 +0300, Felipe Balbi wrote:
> > On Tue, Jun 25, 2013 at 11:35:30AM +0300, Luciano Coelho wrote:
> > > +- tcxoclock: the internal WLAN TCXO clock frequency (required for
> > > + WiLink7 not used for WiLink6 and WiLink8). Must be one of the
> > > + following:
> > > + 0 = 19.200 MHz
> > > + 1 = 26.000 MHz
> > > + 2 = 38.400 MHz
> > > + 3 = 52.000 MHz
> > > + 4 = 16.368 MHz
> > > + 5 = 32.736 MHz
> > > + 6 = 16.800 MHz
> > > + 7 = 33.600 MHz
> >
> > DTS files are pre-processed, so you could add defines in a header and
> > share the header between DTS and driver. Could help you having:
> >
> > tcxoclock = WILINK_19_200MHz;
> >
> > instead of
> >
> > tcxoclock = 0;
>
> I don't see any .dts file really doing this. There are some imx*.dtsi
> files that include imx*.h files, but I don't see these headers being
> included in any source code file.
>
> In fact, we already have all these values defined in
> include/linux/wl12xx.h, so it could be nice to reuse. But the
> cross-directory includes would look "funny". And I think it's a bit
> overkill.
>
> These values are actually used by the firmware itself, not only the
> driver, so they are also platform independent and not related to the OS.

fair enough, then there's no chance they'll change all of a sudden.

--
balbi

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