[PATCH v6 22/27] dt-bindings: allwinner: add H616 DE33 mixer binding

Ryan Walklin
2025-02-16T08:58:30Z

The Allwinner H616 and variants have a new display engine revision
(DE33).

The mixer configuration registers are significantly different to the DE3
and DE2 revisions, being split into separate top and display blocks,
therefore a fallback for the mixer compatible is not provided.

Add a display engine mixer binding for the DE33.

Signed-off-by: Ryan Walklin <ryan@testtoast.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>

---
Changelog v2..v3:
- Separate content into three patches for three separate subsystems

Changelog v5..v6:
- increase reg maxItems to 3 and add conditional for h616-de33
---
.../allwinner,sun8i-a83t-de2-mixer.yaml | 21 ++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml
index b75c1ec686ad2..274f5e6327333 100644
--- a/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml
+++ b/Documentation/devicetree/bindings/display/allwinner,sun8i-a83t-de2-mixer.yaml
@@ -24,9 +24,11 @@ properties:
- allwinner,sun50i-a64-de2-mixer-0
- allwinner,sun50i-a64-de2-mixer-1
- allwinner,sun50i-h6-de3-mixer-0
+ - allwinner,sun50i-h616-de33-mixer-0

reg:
- maxItems: 1
+ minItems: 1
+ maxItems: 3

clocks:
items:
@@ -61,6 +63,23 @@ properties:
required:
- port@1

+allOf:
+ - if:
+ properties:
+ compatible:
+ enum:
+ - allwinner,sun50i-h616-de33-mixer-0
+
+ then:
+ properties:
+ reg:
+ maxItems: 3
+
+ else:
+ properties:
+ reg:
+ maxItems: 1
+
required:
- compatible
- reg
--
2.48.1