STM32 SPI can operate in slave mode.
This series add this functionnality in spi-stm32 driver.

The device-tree property st,spi-slave-underrun can configure STM32 SPI
reaction to an underrun.

Alain Volmat (3):
  spi: stm32: renaming of spi_master into spi_controller
  spi: stm32: use dmaengine_terminate_{a}sync instead of _all
  dt-bindings: spi: stm32: add bindings regarding stm32h7 spi slave

Valentin Caron (4):
  dt-bindings: spi: stm32: add address-cells and size-cells into yaml
  spi: stm32: introduction of stm32h7 SPI slave support
  dt-bindings: spi: stm32: add stm32h7 st,spi-slave-underrun property
  spi: stm32: add support for stm32h7 SPI slave underrun detection

 .../devicetree/bindings/spi/st,stm32-spi.yaml |  19 +
 MAINTAINERS                                   |   1 +
 drivers/spi/Kconfig                           |   1 +
 drivers/spi/spi-stm32.c                       | 386 ++++++++++++------
 include/dt-bindings/spi/spi-stm32.h           |  15 +
 5 files changed, 307 insertions(+), 115 deletions(-)
 create mode 100644 include/dt-bindings/spi/spi-stm32.h

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2.25.1