Re: receiving data from mcbsp1 in master mode

[Andreas Kemnade <andreas@kemnade.info>]

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On Thu, 23 Aug 2012 11:47:59 +0300
Peter Ujfalusi <peter.ujfalusi@ti.com> wrote:

> On 08/22/2012 11:19 PM, Andreas Kemnade wrote:
> > if I understand the TRM correctly, according to Figure 21-26 in chapter 21.4.2.3.
> > if GSYNC is set, the receiver uses the signal from the sample rate generator,
> > so CLKX does not need to be the CLKR source.
> > But I tried also with the DEVCONF0 MCBSP1_CLKR bit as you proposed.
> > I tried
> >  snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_CLKR_SRC_CLKX, 0,
> >                                      SND_SOC_CLOCK_OUT);
> >  snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_FSR_SRC_FSX, 0,
> >                                      SND_SOC_CLOCK_OUT);
> 
> There is an issue with the 6pin mux code, try to add this patch:
> http://mailman.alsa-project.org/pipermail/alsa-devel/2012-August/054041.html
> 
That is exactly the patch I was talking about in the next line, see
http://marc.info/?l=linux-omap&m=134540540412165&w=2

> >  That is why I send you my patch about that mux settings. But I had no success.
     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> > The CLKX as CLKR source and FSX as FSR source setting I have only seen when
> > mcbsp1 is used in slave mode. If you know any working code which uses mcbsp1 in
> > master mode then let me know.
> 
> No, I don't have board which uses McBSP1.
> 
> -- 
> Péter
> 
> 

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