чт, 19 лют. 2026 р. о 19:51 Dario Binacchi <[email protected]> пише: > > This series adds support for the Rocktech RK050HR345-CT106A panel. > The initialization of this panel requires a 9-bit word length > configuration. To support this, I have extended the STM32 SPI driver > (including support for the STM32MP25 SoC) to implement the set_wordlen > operation. > > To properly validate these changes and ensure the SPI uclass correctly > handles the word length propagation, I have also implemented the > corresponding logic in the sandbox driver and added a dedicated unit > test. > > I have grouped these patches together to provide a complete overview of > the implementation and its verification. > > > Dario Binacchi (8): > spi: add support for bits-per-word setting > spi: sandbox_spi: support wordlen setup > test: spi: add sandbox_spi_get_wordlen interface > test: dm: spi: add testcase for spi_set_wordlen()
Hello Dario! You should not need to modify spi framework to support 9 bit len xfer. dm_spi_xfer supports this already, you need only stm32 support for non-aligned xfers. You can refer to ssd2825 bridge as an example of 9-bit spi communication for write and 16 bit reads. > spi: stm32: clean up buffer length assignment > spi: stm32: add support for bits-per-word setting > spi: stm32: extend support to STM32MP25 > video: support Rocktech RK050HR345-CT106A panel > > arch/sandbox/include/asm/test.h | 8 + > drivers/spi/sandbox_spi.c | 21 ++ > drivers/spi/spi-uclass.c | 19 ++ > drivers/spi/stm32_spi.c | 67 +++++- > drivers/video/Kconfig | 8 + > drivers/video/Makefile | 1 + > drivers/video/ilitek-ili9806e.c | 354 ++++++++++++++++++++++++++++++++ > include/spi.h | 12 ++ > test/dm/spi.c | 16 ++ > 9 files changed, 499 insertions(+), 7 deletions(-) > create mode 100644 drivers/video/ilitek-ili9806e.c > > -- > 2.43.0 > > base-commit: 7dca54ef4c44c82bdc6716ac6cdc84c22c66e9ed > branch: RK050HR345-CT106A-ON-SPI
