dt-bindings: mmc: Add support for rk3576 eMMC

The device is compatible with rk3588, so add an entry for the 2
compatibles together.

The rk3576 device has a power-domain that needs to be on for the eMMC to
be used. Add it as a requirement.

Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240904203154.253655-2-detlev.casanova@collabora.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

Documentation/devicetree/bindings/mmc/snps,dwcmshc-sdhci.yaml

@@ -12,7 +12,11 @@ maintainers:
 
 properties:
   compatible:
-    enum:
+    oneOf:
+      - items:
+          - const: rockchip,rk3576-dwcmshc
+          - const: rockchip,rk3588-dwcmshc
+      - enum:
           - rockchip,rk3568-dwcmshc
           - rockchip,rk3588-dwcmshc
           - snps,dwcmshc-sdhci
@@ -35,6 +39,9 @@ properties:
     minItems: 1
     maxItems: 5
 
+  power-domains:
+    maxItems: 1
+
   resets:
     maxItems: 5
 
@@ -97,6 +104,20 @@ allOf:
             - const: block
             - const: timer
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: rockchip,rk3576-dwcmshc
+
+    then:
+      required:
+        - power-domains
+
+    else:
+      properties:
+        power-domains: false
+
 unevaluatedProperties: false
 
 examples: