ASoC: rt5645: improve headphone depop function

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We add a calibration function and call it at the beginning of i2c_probe.
The calibration value will be kept until codec is shutdown. We will reset
the codec after the calibration is finished. So, we set cache_bypass in
the calibration function. The benefit is we can shorter the delay time
in headphone depop.

We also change the register setting in the depop sequence which will
reduce the pop noise in headphone playback.

Signed-off-by: John Lin <john.lin@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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John Lin 2015-05-12 20:43:02 +08:00 • committed by Mark Brown

parent ac4fc3eeb7

commit d12d6c4ef2

1 changed files with 174 additions and 78 deletions

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sound/soc/codecs/rt5645.c

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