[PATCH v3 1/5] dt-bindings: arm: coresight-tnoc: Add standalone qcom,coresight-agtnoc compatible

[Jie Gan]

The TNOC compatible previously only allowed the two-string AMBA form
"qcom,coresight-tnoc", "arm,primecell", which forces the device onto the
AMBA bus.

Convert the compatible to a oneOf and add a standalone
"qcom,coresight-agtnoc" compatible alongside the existing AMBA form. The
standalone string carries no "arm,primecell" entry, so the device is
created on the platform bus instead of the AMBA bus.

Add "qcom,coresight-agtnoc" to the select block so the schema matches
nodes that use only the standalone compatible, and add an example node
demonstrating the standalone form.

Signed-off-by: Jie Gan <jie.gan at oss.qualcomm.com>
---
 .../bindings/arm/qcom,coresight-tnoc.yaml          | 39 ++++++++++++++++++++--
 1 file changed, 36 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-tnoc.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-tnoc.yaml
index ef648a15b806..7e6e4b17a6c1 100644
--- a/Documentation/devicetree/bindings/arm/qcom,coresight-tnoc.yaml
+++ b/Documentation/devicetree/bindings/arm/qcom,coresight-tnoc.yaml
@@ -29,6 +29,7 @@ select:
       contains:
         enum:
           - qcom,coresight-tnoc
+          - qcom,coresight-agtnoc
   required:
     - compatible
 
@@ -37,9 +38,11 @@ properties:
     pattern: "^tn(@[0-9a-f]+)$"
 
   compatible:
-    items:
-      - const: qcom,coresight-tnoc
-      - const: arm,primecell
+    oneOf:
+      - items:
+          - const: qcom,coresight-tnoc
+          - const: arm,primecell
+      - const: qcom,coresight-agtnoc
 
   reg:
     maxItems: 1
@@ -110,4 +113,34 @@ examples:
         };
       };
     };
+
+  - |
+    tn at 10980000  {
+      compatible = "qcom,coresight-agtnoc";
+      reg = <0x10980000 0x4200>;
+
+      clocks = <&aoss_qmp>;
+      clock-names = "apb_pclk";
+
+      in-ports {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        port at 0 {
+          reg = <0>;
+
+          tn_ag_in_tpdm_mss: endpoint {
+            remote-endpoint = <&tpdm_mss_out_tn_ag>;
+          };
+        };
+      };
+
+      out-ports {
+        port {
+          tn_ag_out_funnel_in2: endpoint {
+            remote-endpoint = <&funnel_in2_in_tn_ag>;
+          };
+        };
+      };
+    };
 ...

-- 
2.34.1