[PATCH 5.10 555/563] dt-bindings: display: meson-dw-hdmi: add missing sound-name-prefix property

[Greg Kroah-Hartman]

From: Alexander Stein <alexander.stein@xxxxxxxxxxx>

commit 22bf4047d26980807611b7e2030803db375afd87 upstream.

This is used in meson-gx and meson-g12. Add the property to the binding.
This fixes the dtschema warning:
hdmi-tx@c883a000: 'sound-name-prefix' does not match any of the
regexes: 'pinctrl-[0-9]+'

Signed-off-by: Alexander Stein <alexander.stein@xxxxxxxxxxx>
Fixes: 376bf52deef5 ("dt-bindings: display: amlogic, meson-dw-hdmi: convert to yaml")
Acked-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20211223122434.39378-2-alexander.stein@xxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml |    5 +++++
 1 file changed, 5 insertions(+)

--- a/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/amlogic,meson-dw-hdmi.yaml
@@ -10,6 +10,9 @@ title: Amlogic specific extensions to th
 maintainers:
   - Neil Armstrong <narmstrong@xxxxxxxxxxxx>
 
+allOf:
+  - $ref: /schemas/sound/name-prefix.yaml#
+
 description: |
   The Amlogic Meson Synopsys Designware Integration is composed of
   - A Synopsys DesignWare HDMI Controller IP
@@ -99,6 +102,8 @@ properties:
   "#sound-dai-cells":
     const: 0
 
+  sound-name-prefix: true
+
 required:
   - compatible
   - reg