[PATCH v2 0/5] coresight: syscfg: dynamic load

[Mike Leach]

1) API updated to allow dynamic load and unload of configurations and
features. Dependency management between loaded sets is added.

2) New configuration and feature sets can be added using a loadable module.
An example in /samples/coresight is provided to demonstrate this.

3) configfs can be used to activate a configuration which will then be used
when controlling tracing using sysfs.

Applies and tested on coresight/next - which is 5.15-rc1


Changes since v1:

a) Original set split to divide related changes into smaller sets.
Removed RFC flag.

b) Revised config activation for sysfs to simplify common function.
(patch 4). 

c) Minor changes requested by Mathieu added.

Mike Leach (5):
  coresight: syscfg: Update API to allow dynamic load and unload
  coresight: syscfg: Update load API for config loadable modules
  coresight: syscfg: Example CoreSight configuration loadable module
  coresight: configfs: Allow configfs to activate configuration
  Documentation: coresight: Update coresight configuration docs

 .../trace/coresight/coresight-config.rst      |  19 ++
 MAINTAINERS                                   |   1 +
 .../coresight/coresight-cfg-preload.c         |   9 +-
 .../hwtracing/coresight/coresight-config.h    |   9 +-
 .../coresight/coresight-etm4x-core.c          |  11 +-
 .../coresight/coresight-syscfg-configfs.c     |  87 +++++
 .../coresight/coresight-syscfg-configfs.h     |   4 +
 .../hwtracing/coresight/coresight-syscfg.c    | 315 ++++++++++++++++--
 .../hwtracing/coresight/coresight-syscfg.h    |  39 ++-
 samples/Kconfig                               |   9 +
 samples/Makefile                              |   1 +
 samples/coresight/Makefile                    |   4 +
 samples/coresight/coresight-cfg-sample.c      |  73 ++++
 13 files changed, 546 insertions(+), 35 deletions(-)
 create mode 100644 samples/coresight/Makefile
 create mode 100644 samples/coresight/coresight-cfg-sample.c

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2.17.1