[alsa-devel] Samsung S5PV210 I2S DMA

Mike Dyer mike.dyer at md-soft.co.uk
Sun Apr 7 13:36:05 CEST 2013


Hi All,

I'm attempting to play audio into a WM8960 codec attached to I2S 0 on a
Samsung S5PV210.

The DMA engine emits a lot of messages complaining of (I think) a read
fault:

dma-pl330 dma-pl330.0: Reset Channel-0 CS-20000f FTC-40000
dma-pl330 dma-pl330.0: Reset Channel-0 CS-20000f FTC-40000
...

I've had audio playing using the I2S idma driver, so I know clocks +
mixer settings are OK.  I'd like to get the external DMA working because
I also need to do capture.

Any suggestions on how to debug?

Cheers,
Mike




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