[alsa-devel] [PATCH] ASoC: wm8750: Make VREF a VMID instead of OUTPUT widget

Charles Keepax ckeepax at opensource.wolfsonmicro.com
Thu Dec 11 10:54:03 CET 2014


On Mon, Dec 08, 2014 at 11:23:11AM +0100, Lars-Peter Clausen wrote:
> Commit 04489eeb02a4 ("ALSA: wm8750: add missing VREF output") added the
> previously missing VREF widget. And while adding the widget as OUTPUT widget
> silences the error of the missing widget it should have rather been a VMID
> widget.
> 
> The VREF widget is only used internally as a source for the VREF input of
> the Out3 Mux. Selecting that input means that the path should be kept
> powered up at the VREF/VMID voltage, but that there is no actual audio
> signal. Using a VMID widget will do this, whereas using a OUTPUT widget will
> simply cause the path to completely power down.
> 
> Signed-off-by: Lars-Peter Clausen <lars at metafoo.de>
> ---

Acked-by: Charles Keepax <ckeepax at opensource.wolfsonmicro.com>

Thanks,
Charles


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