SPI on Nucleo_STMH533RE
I have just seen your reply, did you manage to find a way to set it up ? the error you are getting means that you need to give pinmux property in the pins you are setting to pinctrl-0, because it is set as required in the binding
you also have an example in this file
You need to set it up like this for example:
pinmux = < STM32_PINMUX('F', 7, ANALOG) >, /* SPI5_SCK */
< STM32_PINMUX('F', 8, ANALOG) >, /* SPI5_MISO */
< STM32_PINMUX('F', 9, ANALOG) >, /* SPI5_MOSI */
< STM32_PINMUX('F', 6, ANALOG) >; /* SPI5_NSS */
;){kind=link}