I am currently working on an ASoC driver for mx2x platforms. I am porting an old working ASoC driver for 2.6.22 + Freescale BSP kernel to current 2.6.30 kernel. Among other things, I had to translate old Freescale's DMA api to the one provided in 2.6.30 for i.mx2x platforms. Here I will describe the problem that I am having: in "aplay" I am using (buffer_size/period_size=4), each (2*period_size) samples I have some erroneous ones that should come (buffer_size) samples later, and this relation is valid for several values with (buffer_size/period_size=4). I have a trace log with all details for DMA transfers that I have compared for both 2.6.22 and new 2.6.30 and they are identical. Some people has also told me that there could be a problem with DMA in mx2x platforms. Do you have knowledge of this kind of problem? Is there a new DMA version for mx2x in any git repository? -- Javier Martin Vista Silicon S.L. Universidad de Cantabria CDTUC - FASE C - Oficina S-345 Avda de los Castros s/n 39005- Santander. Cantabria. Spain +34 942 25 32 60 www.vista-silicon.com _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
