Add the compatible string for the JPEG decoder block found in the
MediaTek MT8189 SoC.

Compared to previous generation ICs, the MT8189 JPEG decoder requires
34-bit IOVA address space support and only needs a single clock
("jpgdec") instead of two. Therefore, it is added as a standalone
compatible string without falling back to older SoCs.

Update the binding schema to include the new compatible string and add
an `allOf` block with conditional checks. This enforces the single clock
requirement for MT8189 while preserving the two-clock requirement
("jpgdec-smi", "jpgdec") for older SoCs.

Signed-off-by: Jianhua Lin <redacted>
---
 .../bindings/media/mediatek-jpeg-decoder.yaml | 39 ++++++++++++++++---
 1 file changed, 34 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml
index a4aacd3eb189..91c9b2a4687b 100644
--- a/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml
+++ b/Documentation/devicetree/bindings/media/mediatek-jpeg-decoder.yaml

@@ -17,13 +17,14 @@ properties:
     oneOf:
       - items:
           - enum:
-              - mediatek,mt8173-jpgdec
               - mediatek,mt2701-jpgdec
+              - mediatek,mt8173-jpgdec
       - items:
           - enum:
               - mediatek,mt7623-jpgdec
               - mediatek,mt8188-jpgdec
           - const: mediatek,mt2701-jpgdec
+      - const: mediatek,mt8189-jpgdec