On Tue, Jun 16, 2020 at 04:56:08PM +0100, Daniele Alessandrelli wrote: > From: Paul Murphy <paul.j.murphy@xxxxxxxxx> > > Keem Bay SoC has a ARM trusted firmware-based secure monitor which acts > as the SCP for the purposes of power management over SCMI. > > This driver implements the transport layer for SCMI to function. > Please use the smc transport support in driver/firmware/arm_scmi/smc.c for this. You don't need mailbox support for SMC/HVC. Basically you don't need this driver at all and you have everything you need to support what you want. Let me know if you face issues. -- Regards, Sudeep