[alsa-devel] recording problem in beagleboard-mcbsp

[Peter Ujfalusi]

On 04/10/2015 02:04 AM, noman pouigt wrote:
> On Thu, Apr 9, 2015 at 7:07 AM, Peter Ujfalusi <peter.ujfalusi at ti.com> wrote:
>> On 04/09/2015 03:06 PM, Peter Ujfalusi wrote:
>>> Hrm, McBSP1 is kind of problematic port since it has 6pin config by default.
>>> It might worth a try to do something like:
>>> http://lists.infradead.org/pipermail/linux-arm-kernel/2012-August/113058.html
>>> has removed.
>>> Or to switch to use McBSP3.
>>>
>>> But for some reason now I can not get the recording working via McBSP1 either.
>>> I remember that it worked not that long time ago...
>>
>> One thing I would also try:
>> use the codec as master and connect the FS to McBSP1 FSX _and_ FSR. Do the
>> same for the bclk (connect it to BCLKX _and_ BCLKR of McBSP1)
>> Configure the pin mux for these pins also.
> 
> I did but it didn't work.Below is my configuration.
> configured mcbsp1_clkx, mcbsp1_fsx, mcbsp1_dx and mcbsp1_dr
> +
> +       mcbsp1_pins: pinmux_mcbsp1_pins {
> +                pinctrl-single,pins = <
> +                        OMAP3_CORE1_IOPAD(0x2196, PIN_OUTPUT | MUX_MODE0)
> +                        OMAP3_CORE1_IOPAD(0x2198, PIN_OUTPUT | MUX_MODE0)
> +                        OMAP3_CORE1_IOPAD(0x2190, PIN_OUTPUT | MUX_MODE0)
> +                        OMAP3_CORE1_IOPAD(0x2192, PIN_INPUT | MUX_MODE0)
> +                        OMAP3_CORE1_IOPAD(0x218C, PIN_OUTPUT | MUX_MODE0)
> +                        OMAP3_CORE1_IOPAD(0x218E, PIN_OUTPUT | MUX_MODE0)
> +                >;
> +        };

What about the codec master mode? Does that work?

>  };
>>
>> --
>> Péter


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