[PATCH 12/14] dt-bindings: perf: arm-cmn: Add CI-700

[Robin Murphy]

CI-700 is a new client-level coherent interconnect derived from
the enterprise-level CMN family, and shares the same PMU design.

CC: devicetree at vger.kernel.org
Signed-off-by: Robin Murphy <robin.murphy at arm.com>
---
 .../devicetree/bindings/perf/arm,cmn.yaml     | 21 ++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/perf/arm,cmn.yaml b/Documentation/devicetree/bindings/perf/arm,cmn.yaml
index 42424ccbdd0c..2d4219ec7eda 100644
--- a/Documentation/devicetree/bindings/perf/arm,cmn.yaml
+++ b/Documentation/devicetree/bindings/perf/arm,cmn.yaml
@@ -12,12 +12,14 @@ maintainers:
 
 properties:
   compatible:
-    const: arm,cmn-600
+    enum:
+      - arm,cmn-600
+      - arm,ci-700
 
   reg:
     items:
       - description: Physical address of the base (PERIPHBASE) and
-          size (up to 64MB) of the configuration address space.
+          size of the configuration address space.
 
   interrupts:
     minItems: 1
@@ -31,14 +33,23 @@ properties:
 
   arm,root-node:
     $ref: /schemas/types.yaml#/definitions/uint32
-    description: Offset from PERIPHBASE of the configuration
-      discovery node (see TRM definition of ROOTNODEBASE).
+    description: Offset from PERIPHBASE of CMN-600's configuration
+      discovery node (see TRM definition of ROOTNODEBASE). Not
+      relevant for newer CMN/CI products.
 
 required:
   - compatible
   - reg
   - interrupts
-  - arm,root-node
+
+if:
+  properties:
+    compatible:
+      contains:
+        const: arm,cmn-600
+then:
+  required:
+    - arm,root-node
 
 additionalProperties: false
 
-- 
2.28.0.dirty