[alsa-devel] Pop and offsets at start of audio playback/record for SGTL5000 on i.MX28

Michael Trimarchi michael at amarulasolutions.com
Fri Nov 14 03:04:51 CET 2014


Hi

Il 14/nov/2014 09:58 "Craig McQueen" <craig.mcqueen at beamcommunications.com>
ha scritto:
>
> On 14/11/14 12:45, Michael Trimarchi wrote:
>>
>> Hi
>>
>> Il 14/nov/2014 09:44 "Craig McQueen" <
craig.mcqueen at beamcommunications.com> ha scritto:
>> >
>> > I'm testing the 3.14.19 kernel for i.MX28 EVK, which has an SGTL5000
CODEC. I've also tested on the 3.18-rc4 kernel and confirmed this issue
still occurs.
>> >
>>
>> Are you using it in master or slave mode?
>
>

Try to change the pin mux of data line in order to be hz in idle mode and
add a small pull down resistor. Can you check if the dataline is up when
clocks go off?

Michael

> For the i.MX28 EVK, the SGTL5000 is in slave mode.
>
> --
> Craig McQueen
>


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