[PATCH v4 1/3] dt-bindings: arm: document the static TPDM compatible

[Jie Gan]

The static TPDM device is intended for sources that do not require MMIO
mapping. Its compatible string should be documented clearly, along with
an example illustrating how to define a static TPDM node in the DT.

Reviewed-by: Rob Herring (Arm) <robh at kernel.org>
Signed-off-by: Jie Gan <jie.gan at oss.qualcomm.com>
---
 .../bindings/arm/qcom,coresight-tpdm.yaml          | 23 +++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
index 4edc47483851..c349306f0d52 100644
--- a/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
+++ b/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
@@ -36,9 +36,12 @@ properties:
   $nodename:
     pattern: "^tpdm(@[0-9a-f]+)$"
   compatible:
-    items:
-      - const: qcom,coresight-tpdm
-      - const: arm,primecell
+    oneOf:
+      - items:
+          - const: qcom,coresight-static-tpdm
+      - items:
+          - const: qcom,coresight-tpdm
+          - const: arm,primecell
 
   reg:
     maxItems: 1
@@ -147,4 +150,18 @@ examples:
         };
       };
     };
+
+    turing-llm-tpdm {
+      compatible = "qcom,coresight-static-tpdm";
+
+      qcom,cmb-element-bits = <32>;
+
+      out-ports {
+        port {
+         turing_llm_tpdm_out: endpoint {
+           remote-endpoint = <&turing0_funnel_in1>;
+         };
+        };
+      };
+    };
 ...

-- 
2.34.1