Re: [PATCH v8 03/10] arm_ffa: introduce Arm FF-A low-level driver

Sudeep Holla
2023-01-25T17:11:25Z

On Wed, Jan 25, 2023 at 04:44:34PM +0000, Abdellatif El Khlifi wrote:

[...]

> Future SW features using SMC can be discovered by arm_smccc as well.
> We can document this approach in U-Boot/Linux so future developments
> will follow this approach.
>

OK as discussed in private, you must not need any new binding. Also looking
(a very quick glance) at the U-Boot and in particular

"Commit 2fbe47b7e771 ("firmware: psci: bind arm smccc features when discovered")"

It looks like you have most of what you need already. Etienne has already
added mechanism for SMCCC discovery. You just need to extend things from
there if you need to support other features using SMCCC and discoverable
via SMCCC. Hope that helps.

--
Regards,
Sudeep