[PATCH v4 1/3] dt-bindings: media: mediatek-jpeg-decoder: add MT8189 compatible string

[Rob Herring]

On Tue, Mar 24, 2026 at 05:54:53PM +0800, Jianhua Lin wrote:
> 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 <jianhua.lin at mediatek.com>
> ---
>  .../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

This goes in the 1st oneOf entry along with 8173.