[alsa-devel] [PATCH 4/7] ASoC: rockchip-max98090: Fix the Headset Mic route.

[Mark Brown]

On Thu, May 05, 2016 at 10:03:38AM +0200, Enric Balletbo i Serra wrote:
> Since commit e409dfbfccf9a49 ("ASoC: dapm: Add a few supply widget
> sanity checks") the following error is seen:


>  rockchip-snd-max98090 sound: Connecting non-supply widget to supply widget is not supported (Headset Mic -> MICBIAS)
>  rockchip-snd-max98090 sound: ASoC: no dapm match for Headset Mic --> (null) --> MICBIAS
>  rockchip-snd-max98090 sound: ASoC: Failed to add route Headset Mic -> direct -> MICBIAS
>  input: ROCKCHIP-I2S Headset Jack as /devices/platform/sound/sound/card0/input3

> Invert the route between the Headset Mic and the bias in order to fix it.

This isn't just noise, this is telling you that the route has always
been broken...
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