[PATCH v4 -next 0/4] spi: Introduce BPF based SPI mockup controller

[Zhang Xiaoxu <zhangxiaoxu@huawecloud.com>]

From: Zhang Xiaoxu <zhangxiaoxu@huawe.com>

v3->v4:
  Use configfs to register the controller and target
  Modify with the comments from Mark Brown

v2->v3:
  Add configfs to configure and register the device;
  Fix some misspelling.

v1->v2:
  Use the new _controller() API
  P1. Move the license identifier to the entrie comment
  P2. Inherit tx_nbits/rx_nbits/cs_off/cs_change from the
      spi_transfer to the tracepoint
  P3. Removed.
  P4. Update the Document.

Zhang Xiaoxu (4):
  spi: mockup: Add SPI controller testing driver
  spi: mockup: Add register spi device support
  spi: mockup: Add writeable tracepoint for spi transfer
  spi: mockup: Add documentation

 Documentation/spi/index.rst       |   1 +
 Documentation/spi/spi-mockup.rst  | 198 +++++++++++
 drivers/spi/Kconfig               |  12 +
 drivers/spi/Makefile              |   1 +
 drivers/spi/spi-mockup.c          | 562 ++++++++++++++++++++++++++++++
 include/linux/spi/spi-mockup.h    |  17 +
 include/trace/events/spi_mockup.h |  31 ++
 7 files changed, 822 insertions(+)
 create mode 100644 Documentation/spi/spi-mockup.rst
 create mode 100644 drivers/spi/spi-mockup.c
 create mode 100644 include/linux/spi/spi-mockup.h
 create mode 100644 include/trace/events/spi_mockup.h

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2.34.1