[alsa-devel] [PATCH v2] [ALSA] Add ASoC drivers for the Freescale MPC8610 SoC

Timur Tabi timur at freescale.com
Fri Jan 11 00:12:16 CET 2008

Grant Likely wrote:

> Does the driver access the DMA and GUTS registers directly?  If so,
> what do you have to protect against race conditions of other drivers
> accessing them also.

I don't have any more protection than any other driver that accesses SOC 
registers directly.  Last I heard, Zhang's DMA driver was in limbo, and that 
driver would be the best place to arbitrate DMA register access.  I was planning 
on adding arbitration support to that driver after both drivers were applied.

As for the GUTS driver, well, I just program a few registers at startup, and I 
don't think any other driver touches them.

Timur Tabi
Linux kernel developer at Freescale

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