Our platform is AT91 LINUX2.6.39 ，Do you have a matching driver? http://www.ti.com/tool/tlv320aic31xxsw-linux，
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The drivers that have currently been upstreamed into the community may be a little more fresh than the one on ti.com. Here's a link to an upstreamed driver:
If the driver doesn't match their implementation they'll be responsible for updating the base driver we've provided.