On Sat, Dec 21, 2024 at 10:26:32PM +1300, Ryan Walklin wrote: > From: Chris Morgan <macromorgan@xxxxxxxxxxx> > > Devices integrating Allwinner SoCs may use line-out or headphone jacks > with jack detection circuits attached to a GPIO. Support defining these > in DTs. > > A number of Anbernic devices featuring the H700 SoC use this mechanism > to switch between a headphone jack and an internal speaker, so add these > to the allowed routing items. > > Signed-off-by: Chris Morgan <macromorgan@xxxxxxxxxxx> > Signed-off-by: Ryan Walklin <ryan@xxxxxxxxxxxxx> > --- > .../bindings/sound/allwinner,sun4i-a10-codec.yaml | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml > index ebc9097f936ad..b4b711e80b65a 100644 > --- a/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml > +++ b/Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml > @@ -98,6 +98,10 @@ properties: > maxItems: 1 > description: GPIO to enable the external amplifier > > + allwinner,hp-det-gpios: > + maxItems: 1 > + description: GPIO for headphone/line-out detection > + If possible, I wonder if we can keep this without the vendor prefix? It looks like for now Nvidia and some Rockchip codecs have the vendor prefix, but audio-graph bindings and Freescale codec bindings have this as a non-specific property (and it looks like simple-audio-card does it either as "hp-det-gpios" or "simple-audio-card,hp-det-gpios" depending upon the circumstances). Also, the behavior of this is very specific to just the Headphone sink, so we should drop the line-out text from the description. If someone sets the routing as `"Headphone", "LINEOUT"` the state of the GPIO will affect the audio path, but `"Line Out", "LINEOUT"` will not be impacted by the state of the GPIO. Thank you, Chris > required: > - "#sound-dai-cells" > - compatible > @@ -247,8 +251,10 @@ allOf: > allwinner,audio-routing: > items: > enum: > + - Headphone > - LINEOUT > - Line Out > + - Speaker > > dmas: > items: > -- > 2.47.1 > >
