[alsa-devel] imx-ssi in master mode?

Sven Zeisberg sven.zeisberg at googlemail.com
Mon Aug 30 08:32:52 CEST 2010

  Hi Sascha,

again - thanks for your help! We start working on this now and hopefully 
return soon with results...


Am 27.08.2010 13:54, schrieb Sascha Hauer:
> On Thu, Aug 26, 2010 at 05:23:53PM +0200, Sven Zeisberg wrote:
>>    Hi
>> I found that the i.MX25 can not transfer multichannels frames through
>> SSI when it is set up as slave.
>> (when the i.MX25 SSI is set up as slave, the SSI is set to "normal" mode
>> in which only one word per frame is transfered)
>> Now I'm wondering if anybody has successfully used a codec with the
>> i.MX25 SSI set up as Master. When we do this here, we can see that the
>> i.MX25 is generating the bit clock but no frame sync.
> Master mode is currently not supported by the i.MX driver. You'd have to
> implement the clk_get_rate functions for the ssi clocks first before
> implementing the missing pieces in the driver.
> Sascha

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