My system hangs too when loading the old AIC23 codec module on the
OSK5912, don' t know why.
---
Yuri Jaeger Monti
On Wed, Sep 3, 2008 at 2:27 PM, Arun KS <[EMAIL PROTECTED]> wrote:
>
> Hi Balbi,
>
> That clk_enable() is for sys_clkout, which is the MCLK for the CODEC.
>
> I am following n810.c file itself.
>
> But I m talking about omap_mcbsp_request(0), which will only be called when
> we do an aplay, by the platform driver of the
> omap(sound/soc/omap/ompa-mcbsp.c).
> But before this the unused clocks are switched off by clock.c in
> arch/arm/mach-omap1/clocks.c.
> And when i call the omap_mcbsp_request(), the entire system hangs...
>
> Arun
>
> On Wed, Sep 3, 2008 at 7:39 PM, Felipe Balbi <[EMAIL PROTECTED]> wrote:
> > On Wed, Sep 03, 2008 at 07:32:51PM +0530, ext Arun KS wrote:
> >> Hi all,
> >>
> >> I am trying to write an ASOC driver for tlv320aic23 on 5912osk.
> >> When i do an aplay, the system is hanging.
> >> Later i found that it is hanging when mcbsp1 is requested in funcion
> >> omap_mcbsp_dai_startup in file sound/soc/omap/omap-mcbsp.c
> >>
> >> The reason is that the unused clocks are switched off during booting.
> >>
> >> So i decided to disable the option (reset unused clocks during boot) from
> >> system type -> TI OMAP Implementations in menuconfig.
> >>
> >> But still its not working.
> >>
> >> When i give omap_mcbsp_request(0) in init function of my machine
> >> driver, i m able
> >> to get the requested mcbsp.
> >
> > Take a look at sound/soc/omap/n810.c, under n810_startup() it calls
> > clk_enable().
> >
> > Maybe you should do the same. But since tlv320aic23 is used by more than
> > one machine you could make the clk_enable be board specific.
> >
> > But one step at a time, take a look here:
> >
> > 71 static int n810_startup(struct snd_pcm_substream *substream)
> > 72 {
> > 73 struct snd_soc_pcm_runtime *rtd = substream->private_data;
> > 74 struct snd_soc_codec *codec = rtd->socdev->codec;
> > 75
> > 76 n810_ext_control(codec);
> > 77 return clk_enable(sys_clkout2);
> > 78 }
> >
> > --
> > balbi
> >
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