dt-bindings: perf: fsl-imx-ddr: Add compatible string for i.MX8QM, i.MX8QXP and i.MX8DXL

Add compatible string fsl,imx8qm-ddr-pmu, fsl,imx8qxp-ddr-pmu, which
fallback to fsl,imx8-ddr-pmu and fsl,imx8dxl-db-pmu (for data bus fabric).

Add clocks, clock-names for fsl,imx8dxl-db-pmu and keep the same
restriction for existing compatible strings.

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Will Deacon <will@kernel.org>

Documentation/devicetree/bindings/perf/fsl-imx-ddr.yaml

@@ -14,6 +14,7 @@ properties:
     oneOf:
       - enum:
           - fsl,imx8-ddr-pmu
+          - fsl,imx8dxl-db-pmu
           - fsl,imx8m-ddr-pmu
           - fsl,imx8mq-ddr-pmu
           - fsl,imx8mm-ddr-pmu
@@ -28,7 +29,10 @@ properties:
               - fsl,imx8mp-ddr-pmu
           - const: fsl,imx8m-ddr-pmu
       - items:
-          - const: fsl,imx8dxl-ddr-pmu
+          - enum:
+              - fsl,imx8dxl-ddr-pmu
+              - fsl,imx8qm-ddr-pmu
+              - fsl,imx8qxp-ddr-pmu
           - const: fsl,imx8-ddr-pmu
       - items:
           - enum:
@@ -43,6 +47,14 @@ properties:
   interrupts:
     maxItems: 1
 
+  clocks:
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: ipg
+      - const: cnt
+
 required:
   - compatible
   - reg
@@ -50,6 +62,21 @@ required:
 
 additionalProperties: false
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: fsl,imx8dxl-db-pmu
+    then:
+      required:
+        - clocks
+        - clock-names
+    else:
+      properties:
+        clocks: false
+        clock-names: false
+
 examples:
   - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>