On Thursday 28 August 2008, Scott Wood wrote:

On Thu, Aug 28, 2008 at 05:57:13PM +0200, Laurent Pinchart wrote:

quoted

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

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