[PATCH v3 5/8] dt-bindings: ufs: mediatek,ufs: Document MT8192 compatible with MT8183

[AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>]

The MT8192 UFS controller is compatible with the MT8183 one:
document this by allowing to assign both compatible strings
"mediatek,mt8192-ufshci", "mediatek,mt8183-ufshci" to the UFSHCI node.

Moreover, since no MT8192 devicetree ever declared any UFSHCI node,
disallow specifying only the MT8192 compatible.

In preparation for adding MT8195 to the mix, the MT8192 compatible
was added as enum instead of const.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/ufs/mediatek,ufs.yaml | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/ufs/mediatek,ufs.yaml b/Documentation/devicetree/bindings/ufs/mediatek,ufs.yaml
index 32fd535a514a..2f4b0a40bd5e 100644
--- a/Documentation/devicetree/bindings/ufs/mediatek,ufs.yaml
+++ b/Documentation/devicetree/bindings/ufs/mediatek,ufs.yaml
@@ -14,9 +14,10 @@ allOf:
 
 properties:
   compatible:
-    enum:
-      - mediatek,mt8183-ufshci
-      - mediatek,mt8192-ufshci
+    items:
+      - enum:
+          - mediatek,mt8192-ufshci
+      - const: mediatek,mt8183-ufshci
 
   clocks:
     maxItems: 1
-- 
2.44.0