[PATCH] dt-bindings: media: amlogic,axg-ge2d: add S4 support

[christian . koever-draxl]

From: Christian Stefan Kövér-Draxl <ckoever@xxxxxxxxxx>

The S4 GE2D is compatible with the AXG one, but sits in a power domain
of its own. Add an S4 compatible with the AXG one as fallback, and
allow a power domain.

Signed-off-by: Christian Stefan Kövér-Draxl <ckoever@xxxxxxxxxx>
---
Tool use (Documentation/process/generated-content.rst):
This work was done with the help of an AI coding assistant, Claude
(Anthropic), used through Claude Code over many sessions. It did a large
part of the hands-on work: it read the vendor kernel and the firmware
interfaces, probed registers on the board, drafted the code and the
changelogs, and ran the builds, checkpatch, dt_binding_check and the
tests on the hardware. I directed the work, reviewed every change and
the final patches, and take responsibility for them. There is no single
prompt to quote; the sessions were of the form "find out why X fails on
this board, fix it, test it on the box".

Tested on an Amediatech X98Q TV box (Amlogic S905W2, S4 family, 2 GiB),
vendor U-Boot and BL31/OP-TEE, Linux 7.3 plus this work.

 .../devicetree/bindings/media/amlogic,axg-ge2d.yaml    | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/media/amlogic,axg-ge2d.yaml b/Documentation/devicetree/bindings/media/amlogic,axg-ge2d.yaml
index f23fa6d06ad0..22decb67879d 100644
--- a/Documentation/devicetree/bindings/media/amlogic,axg-ge2d.yaml
+++ b/Documentation/devicetree/bindings/media/amlogic,axg-ge2d.yaml
@@ -12,8 +12,11 @@ maintainers:
 
 properties:
   compatible:
-    enum:
-      - amlogic,axg-ge2d
+    oneOf:
+      - const: amlogic,axg-ge2d
+      - items:
+          - const: amlogic,s4-ge2d
+          - const: amlogic,axg-ge2d
 
   interrupts:
     minItems: 1
@@ -27,6 +30,9 @@ properties:
   clocks:
     minItems: 1
 
+  power-domains:
+    maxItems: 1
+
 required:
   - compatible
   - reg

base-commit: 7be4bc52fd9e0e55dc9a2e0232b89427d2c4b614
-- 
2.56.0