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diff --git a/Documentation/devicetree/bindings/perf/arm,smmu-v3-pmcg.yaml b/Documentation/devicetree/bindings/perf/arm,smmu-v3-pmcg.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/perf/arm,smmu-v3-pmcg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arm SMMUv3 Performance Monitor Counter Group
+
+maintainers:
+  - Will Deacon <will@kernel.org>
+  - Robin Murphy <robin.murphy@arm.com>
+
+description: |
+  An SMMUv3 may have several Performance Monitor Counter Group (PMCG).
+  They are standalone performance monitoring units that support both
+  architected and IMPLEMENTATION DEFINED event counters.
+
+properties:
+  $nodename:
+    pattern: "^pmu@[0-9a-f]*"
+  compatible:
+    oneOf:
+      - items:
+          - const: arm,mmu-600-pmcg
+          - const: arm,smmu-v3-pmcg
+      - const: arm,smmu-v3-pmcg
+
+  reg:
+    items:
+      - description: Register page 0
+      - description: Register page 1, if SMMU_PMCG_CFGR.RELOC_CTRS = 1
+    minItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  msi-parent: true
+
+required:
+  - compatible
+  - reg
+
+anyOf:
+  - required:
+      - interrupts
+  - required:
+      - msi-parent
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    pmu@2b420000 {
+            compatible = "arm,smmu-v3-pmcg";
+            reg = <0x2b420000 0x1000>,
+                  <0x2b430000 0x1000>;
+            interrupts = <GIC_SPI 80 IRQ_TYPE_EDGE_RISING>;
+            msi-parent = <&its 0xff0000>;
+    };
+
+    pmu@2b440000 {
+            compatible = "arm,smmu-v3-pmcg";
+            reg = <0x2b440000 0x1000>,
+                  <0x2b450000 0x1000>;
+            interrupts = <GIC_SPI 81 IRQ_TYPE_EDGE_RISING>;
+            msi-parent = <&its 0xff0000>;
+    };