Documentation/devicetree/bindings/arm/qcom,coresight-remote-etm.yaml

   1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/arm/qcom,coresight-remote-etm.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Qualcomm Coresight Remote ETM(Embedded Trace Macrocell)
   8
   9 maintainers:
  10   - Jinlong Mao <quic_jinlmao@quicinc.com>
  11   - Tao Zhang <quic_taozha@quicinc.com>
  12
  13 description:
  14   Support for ETM trace collection on remote processor using coresight
  15   framework. Enabling this will allow turning on ETM tracing on remote
  16   processor like modem processor via sysfs and collecting the trace
  17   via coresight TMC sinks.
  18
  19 properties:
  20   compatible:
  21     const: qcom,coresight-remote-etm
  22
  23   out-ports:
  24     $ref: /schemas/graph.yaml#/properties/ports
  25     additionalProperties: false
  26
  27     properties:
  28       port:
  29         description: Output connection to the CoreSight Trace bus.
  30         $ref: /schemas/graph.yaml#/properties/port
  31
  32 required:
  33   - compatible
  34   - out-ports
  35
  36 additionalProperties: false
  37
  38 examples:
  39   - |
  40     etm {
  41         compatible = "qcom,coresight-remote-etm";
  42
  43         out-ports {
  44             port {
  45                 modem_etm0_out_funnel_modem: endpoint {
  46                     remote-endpoint = <&funnel_modem_in_modem_etm0>;
  47                 };
  48             };
  49         };
  50     };
  51 ...