ASoC: dt-bindings: sun4i-a10-codec: add hp-det-gpios

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@hotmail.com>
Signed-off-by: Ryan Walklin <ryan@testtoast.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>

--

Changelog v1..v2:
- Remove vendor prefix from hp-det-gpios

Changelog v2..v3:
- Add Reviewed-by tag

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Tested-by: Philippe Simons <simons.philippe@gmail.com>
Link: https://patch.msgid.link/20250214220247.10810-2-ryan@testtoast.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/allwinner,sun4i-a10-codec.yaml

@@ -102,6 +102,10 @@ properties:
     maxItems: 1
     description: GPIO to enable the external amplifier
 
+  hp-det-gpios:
+    maxItems: 1
+    description: GPIO for headphone/line-out detection
+
 required:
   - "#sound-dai-cells"
   - compatible
@@ -251,8 +255,10 @@ allOf:
         allwinner,audio-routing:
           items:
             enum:
+              - Headphone
               - LINEOUT
               - Line Out
+              - Speaker
 
         dmas:
           items: