[alsa-devel] [PATCH] ASoC: Support non-crystal master clocks for WM8731
lrg at slimlogic.co.uk
Wed Aug 18 17:22:49 CEST 2010
On Wed, 2010-08-18 at 16:19 +0100, Mark Brown wrote:
> Instead of unconditionally enabling the crystal oscillator on the WM8731
> only enable it when explicitly selected via set_sysclk(), allowing machine
> drivers to specify that they drive a clock into MCLK alone. This avoids
> any conflicts between the oscillator and the external MCLK source and saves
> power for systems which do not need the oscillator.
> This should also deliver a small power saving on systems using the crystal
> since the oscillator will only be enabled when the ADC or DAC is active.
> Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg at slimlogic.co.uk>
Freelance Developer, SlimLogic Ltd
ASoC and Voltage Regulator Maintainer.
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