Hi Peter, Liam mentioned that at some point (when working for OMAP) you might have had the same challenge I'm facing now. I'm trying to figure out how to properly manage resources needed by the IPs configured by DSP. On i.MX8 we the following scenario: - Application processor (arm64) exposes an ALSA sound card to applications - DSP (Hifi4) does the processing DSP has direct access to DAI registers but it doesn't have (easily) access to other resources like: pinctrl, power-domain, clocks, etc. I was wondering how did you tackled this for OMAP? I have already created a dummy CPU DAI on Linux that it will take care of this [1]. It is a part of a Back End link like this (simplified view): links[i].cpus->name = "dummy_dai"; links[i].platforms->name = "dsp"; links[i].codecs->name = "cs42888"; links[i].no_pcm = 1; It works pretty well for basic playback / capture. thanks, Daniel. [1] https://marc.info/?l=alsa-devel&m=158022296519597&w=2 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
