Support for Deep Sleep Command in flash_stm32_ospi.c

[lokchi]

Hi,

I'm working on a project that requires sending a Deep Sleep command to the external flash. After investigating the drivers/flash/flash_stm32_ospi.c driver, it seems that support for the PM (Power Management) module is not currently implemented.

Should I proceed with adding the implementation myself, or is there an alternative approach or ongoing work in this area that I should be aware of?

Thank you for your guidance!

Best regards,
Lokchi