[alsa-devel] [PATCH] ASoC: TWL4030: DAC power optimization
broonie at opensource.wolfsonmicro.com
Tue Jul 13 11:37:32 CEST 2010
On Tue, Jul 13, 2010 at 12:07:44PM +0300, Peter Ujfalusi wrote:
> Restructure the DAPM connections in order to enable
> only the needed DAC (out of four in twl4030 series).
> I need to keep the 'AIF Enable' supply connected to
> the L2/R2 digital path, since the digital loopback
> needs AIF and APLL running.
> If no valid route available, than none of the DAC will
> be powered, but the AIF and APLL is going to be enabled.
> Furthermore, if only one audio path have valid route,
> than only the corresponding DAC will be powered.
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi at nokia.com>
Acked-by: Mark Brown <broonie at opensource.wolfsomicro.com>
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