On Tue, 2012-01-24 at 22:00 +0000, Mark Brown wrote:
On Tue, Jan 24, 2012 at 01:36:18PM -0800, Pierre-Louis Bossart wrote:
Now if the FM radio routing is handled with a digital loopback on the application processor audio dsp (omap-abe, Intel SST, etc), then soc-dsp will need to be used. And for a simple FM playback, I need to
Note that the use of soc-dsp isn't required for on-SoC DSPs - it really depends on how the hardware looks. If the DSP external format is very strongly tied to the format used to DMA to and from main memory (or other interfaces) then soc-dsp is what you need, if the DSP is able to rewrite formats more flexibly then it should be more direct to model it as a CODEC device with whatever number of DAIs and routing between them.
It's also needed if your DSP cant control or configure any of your host CPU DAI hardware controllers that it needs to physically use to route audio data.
Regards
Liam