Re: Trying to understand how to use new OMAP mux code

[Jarkko Nikula <jhnikula@gmail.com>]

On Wed, 2 Jun 2010 14:21:30 +0300
Tony Lindgren <tony@atomide.com> wrote:

> > How can I call  omap_mux_init_signal()
> > from external driver compiled as module ?
> > 
> > cause the function is not in the standard path include files
> > and is not exported
> 
> You can't that's the whole idea :)
> 
> Instead, please do the muxing in the board-*.c file for all the
> pins, or for the device when you initialize the platform data.
> 
> The muxing of pins is board specific, and doing it in the board-*.c
> files allows us to free the memory for the unused pin data. Note
> that you can also mux using the kernel cmdline if you have something
> non-standard connected to your board pins.
> 
Side note.

How about add-on cards for e.g. BeagleBoard? It would be nice feature
if a kernel module for that particular add-on card can do the muxing
without needing to specify them on cmdline. I.e. if you are switching
between cards there is no need to figure out new cmdline for each of
them. For me even "rootwait" is sometimes too difficult to remember :-)


-- 
Jarkko