> > This embedded project includes a AT91SAM9260 CPU and a WM8900 codec. > > JOOI, is this the WM8900 driver in our dev branch or another one? It > shouldn't make any difference either way what driver is used for the > codec, though, so long as it is generating the relevant clock signals. We are porting a WM8900 driver from a 8731 one. It fit quite well our requirements and should not be the same as your dev branch. Sincerely, It didn't know you're working on it. > > We have an issue : when we play a right channel stereo track, sound > is > > played on right channel, but sometimes on left. > > This issue could happen right after starting kernel, or later after > 10-20 > > sounds played. > > With Frank Mandarino, we've checked any issue from SSC(audio bus) or > PDC > > (dma) controlers, but no much success. > > > Any idea to help us debugging this issue would be welcome ! > > The most likely issue here is a DMA underrun but from what you say you > may already have ruled that out? It would be helpful if you could run > through the debugging you've already done here. I had traced the addresses sent into PDC (soc/at91-pcm.c), and are always the same. What other traces are you looking for ? > One thing to try if your design allows it would be to try making the > CPU the master. That should reduce the number of variables, at least. You're right I should try this way, so it would confirm if I have or not an issue with my LRC clock. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
