Re: [PATCH] firmware: arm_scmi: fix SMCCC_RET_NOT_SUPPORTED management

From: Etienne Carriere
Date: Fri May 15 2020 - 05:57:43 EST


> > Or consider part of the SCMI-SMC transport API that output arg a0
> > shall be 0 on success, SMCCC_RET_NOT_SUPPORTED if function ID is not
> > supported and any non-zero value for non-generic **error** codes.
> >
>
> I prefer that. Anyways I will check and if anything changes I will ping
> back on this thread.

I don't have a strong opinion on whether considering or not 0 as
success, for whatever the function ID used here for SCMI message
notification.
We can assume at least 0 is default returned in a0 when the function
ID is used in SCMI SMC transport.
Thanks for the feedback.

> --
> Regards,
> Sudeep