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

Sascha Hauer s.hauer at pengutronix.de
Fri Aug 27 13:54:16 CEST 2010

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.


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