Re: RFC: Could cpm2_clk_setup and cpm2_set_pin be exported ?

[Laurent Pinchart <laurentp@cse-semaphore.com>]

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On Thursday 28 August 2008, Scott Wood wrote:
> On Thu, Aug 28, 2008 at 05:57:13PM +0200, Laurent Pinchart wrote:
> > I'm facing a situation where I need to call cpm2_clk_setup and
> > cpm2_set_pin from a device driver compiled as a module. Before
> > submitting a patch to export both functions, I'd like to make sure
> > there isn't a cleaner way to implement the desired functionality
> > without calling functions that are supposed to be used by board setup
> > code.
> 
> Have you looked at using the GPIO API?

Yes, but the GPIO API doesn't support dedicated pin usage. Basically all I can do is configure a pin as a general purpose input or output, and set its level when configured as an output. The GPIO API doesn't provide any way to access the PAR and SOR registers.

Beside, the GPIO API won't help configuring clock routing.

Best regards,

-- 
Laurent Pinchart
CSE Semaphore Belgium

Chaussee de Bruxelles, 732A
B-1410 Waterloo
Belgium

T +32 (2) 387 42 59
F +32 (2) 387 42 75

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