On Thu, Nov 27, 2008 at 12:42:12PM +0200, Grazvydas Ignotas wrote:

Pandora board uses different master/slave configuration for McBSP bus, compared to most other boards. It also has another audio path (in addition to TWL4030) - another McBSP link connected to external DAC. The DAC needs 256*Fs clock from TWL4030 to function, and is used for main audio output. TWL4030 is to be used for 2 MIC + line inputs only, and has no outputs connected.

This definitely needs to be a separate machine driver.

I have main audio path working (McBSP2 to DAC), but not inputs (McBSP4 to TWL4030). How can this be implemented using current framework? Should I register 2 platform devices? Sorry for possible derail or stupid questions.

This should all be one ASoC device, especially given that the fact that all the paths use the TWL4030 somehow. Have a look at how, eg, the neo1973 driver handles the bluetooth. For now there's not *particularly* sane support for multiple codecs. Does the DAC have any software control? If not it should be fairly straightforward to handle.