From mboxrd@z Thu Jan  1 00:00:00 1970
From: Liam Girdwood <lrg@ti.com>
Subject: Re: asoc: no valid backend routes for PCM: SDP4430
	Media
Date: Wed, 8 Jun 2011 15:22:45 +0100
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To: hong zhang <henryzhang62@yahoo.com>
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On 07/06/11 20:59, hong zhang wrote:
> Liam,
> 
> Actually, I could not prove DMIC on OMAP4 blaze board is working in both kernel 2.6.35 and 2.6.38 using arecord and gstreamer-alsa.
> 
> In 2.6.35, arecord returns 44 bytes with read error
> In 2.6.38, arecord collects native data.
> 
> Gstreamer-alsa could not get voice after turning off analog captures using amixer. 
> 
> Any information regarding DMIC on OMAP4? I see people send DMIC patch to 2.6.38.
> 

DMIC works on OMAP4, can you try my branch :-

https://gitorious.org/omap-audio/linux-audio/commits/lrg/topic/omap-asoc-next-3.1

Liam