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[v5,0/3] Add support to configure Coresight Dummy subunit

Message ID 20230526100753.34581-1-quic_hazha@quicinc.com
Headers show
Series Add support to configure Coresight Dummy subunit | expand


Hao Zhang May 26, 2023, 10:07 a.m. UTC
Changes in V5:
1. Follow the alphabetical order for the header files in
coresight-dummy.c. -- Suzuki K Poulose
2. Update the maintainers.
3. Split the Coresight Dummy YAML to 2 schema files. 
-- Rob Herring & Krzysztof Kozlowski
4. Update the coresight-dummy.rst file. -- Bagas Sanjaya

Changes in V4:
1. Remove traceid allocation in dummy_probe function since it is
currently not in use, will upstream it as the part of ATID filtering
in the further.  -- Suzuki K Poulose
2. Remove 'oneOf' as there is only one entry. -- Rob Herring

Changes in V3:
1. Use API "dev_dbg" to replace "dev_info". -- Suzuki K Poulose
2. Drop "qcom" property and take it as a dummy framework.
-- Suzuki K Poulose
3. Add new sub-type "CORESIGHT_DEV_SUBTYPE_SINK_DUMMY" to support
coresight dummy module -- Mike Leach
4. Use compatibles "arm,coresight-dummy-source" and
"arm,coresight-dummy-sink" to replace property "qcom,dummy-source" and
"qcom,dummy-sink". -- Mike Leach
5. Define source_devs and sink_devs DEVLIST to replace dummy_devs, make
it clear at the first level. -- Mike Leach
6. Modify subject of YAML patch, drop "YAML schema". -- Krzysztof Kozlowski
7. Drop some redundant items and correct syntax errors in yaml file.
-- Krzysztof Kozlowski & Rob Herring
8. Correct required property of yaml file, constrain out ports to
dummy-source and in ports to dummy-sink. -- Mike Leach
9. Drop "Sysfs files and directories" contents of coresight-dummy.rst.
-- Suzuki K Poulose/Greg Kroah-Hartman
10.Correct syntax errors of coresight-dummy.rst. -- Bagas Sanjaya

Changes in V2:
1. Declare dummy_init and dummy_exit as static to fix missing-prototypes
warnings. -- kernel test robot
2. Fix the errors of coresight-dummy yaml file. -- Rob Herring

Hao Zhang (3):
  Coresight: Add coresight dummy driver
  dt-bindings: arm: Add support for Coresight dummy trace
  Documentation: trace: Add documentation for Coresight Dummy Trace

 .../arm/arm,coresight-dummy-sink.yaml         |  73 ++++++++
 .../arm/arm,coresight-dummy-source.yaml       |  71 ++++++++
 .../trace/coresight/coresight-dummy.rst       |  32 ++++
 drivers/hwtracing/coresight/Kconfig           |  11 ++
 drivers/hwtracing/coresight/Makefile          |   1 +
 drivers/hwtracing/coresight/coresight-dummy.c | 163 ++++++++++++++++++
 include/linux/coresight.h                     |   1 +
 7 files changed, 352 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/arm,coresight-dummy-sink.yaml
 create mode 100644 Documentation/devicetree/bindings/arm/arm,coresight-dummy-source.yaml
 create mode 100644 Documentation/trace/coresight/coresight-dummy.rst
 create mode 100644 drivers/hwtracing/coresight/coresight-dummy.c