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

[Laurent Epinat <laurent.epinat@cioinfoindus.fr>]

Hello all


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

regards,

Laurent

Le 11.03.2010 23:48, Tony Lindgren a écrit :
> * Peter Barada<peter.barada@gmail.com>  [100311 14:29]:
>> 1) Suppose I want to talk to a bluetooth chip through UART2.  UART2_TX
>>   gives me a choice of pins to hook up to, either to pin AA26 in Mode0,
>> or pin AF5 in Mode1.  If I use omape_mux_init_signal("uart2_tx",
>> OMAP_PIN_OUTPUT), which pin will that map to?
>
> You need to check the omap package type you're using to find
> out the correct ball name. If you get lucky, that's already in
> mux34xx.c and you don't need search through the TRMs :)
>
>> 2) How can I tell the muxing code that I want a specific pin for my
>> UART2_TX signal (that's not a GPIO since those can be directly
>> specified by GPIO number)?
>
> Then you want to use the full signal name:
>
> omap_mux_init_signal("mode0_name.desired_mode", OMAP_PIN_FLAGS)
>
> But as the balls can be separate for each package type, you
> need to figure that out first.
>
> Regards,
>
> Tony
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Salutations
Laurent Epinat -> mailto:laurent.epinat@cioinfoindus.fr

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