ASoC: TWL4030: Add configurable delay after digimic enable
When digital microphones are connected to twl, delay is needed after enabling the digimic interface of the codec. Add new parameter for the setup data, which can be used to pass the apropriate delay in ms after the digimic interface has been enabled. Without certain delay (in certain HW configuration) the beggining of the recorded sample contains a glitch, which is generated by the digital microphones. Delaying the micbias1, 2 (which is the bias for the digimic0 or 1) does not help, since the glitch is coming after switching the digimic interface. Reversing the micbias and digimic enable order does not work either (in that case the wait need to be added after the micbias enabled). Signed-off-by:Peter Ujfalusi <peter.ujfalusi@nokia.com> Acked-by:
Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by:
Liam Girdwood <lrg@slimlogic.co.uk>
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