From mboxrd@z Thu Jan  1 00:00:00 1970
From: Shine Liu <shinel@foxmail.com>
Subject: Re: [PATCH] ASoC: s3c24xx platform: Fix
 s3c2410_dma_started called at wrong time
Date: Thu, 20 Aug 2009 23:45:07 +0800
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> The callback doesn't need to be set up within the trigger function - if
> it's done before the trigger functions are called then the DMA trigger
> can call it.  Off the top of my head I'd expect it's possible to set it
> up when the device is opened.

Who call the DMA trigger? When? In any of the platform/cpu_dai trigger
functions?