[alsa-devel] [PATCH] add support to reorder CPU and Codec DAI suspend/resume

Mark Brown broonie at opensource.wolfsonmicro.com
Wed Nov 11 15:20:51 CET 2009

On Wed, Nov 11, 2009 at 08:48:19PM +0800, Barry Song wrote:

> Here I have a problem about blackfin TDM. After a deep sleep(all
> suspend to memory and most parts power-down), If codec resumes at
> first, clock ans sync are provided by it at onece. Then while CPU TDM
> interface resumes, it will fail to go back to right status for work.

What trouble does this give the TDM stuff?  It sounds very fragile if
things get confused like this (presumably as a result of having the
clocks running).

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