[alsa-devel] [PATCH 2/5] ASoC: tpa6130a2: Defer SW enable from power enable
broonie at opensource.wolfsonmicro.com
Tue Nov 30 15:24:49 CET 2010
On Tue, Nov 30, 2010 at 04:00:01PM +0200, Peter Ujfalusi wrote:
> Do not enable the amplifier right after the power has been
> restored to the amplifier.
> The DAPM_SUPPLY widget turns on the amp early in the DAPM
> power walk, and the unmuting of channel happens quite late.
> Keeping the amp in SW reset state ensures better muting.
> In this way the pop noise coming from other components (codec)
> can be filtered out.
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi at nokia.com>
Acked-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
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