On Tue, Jan 12, 2021 at 06:04:14PM +0000, Sudeep Holla wrote:

(sorry for late reply)

On Fri, Dec 11, 2020 at 11:45:08AM +0100, Jens Wiklander wrote:

quoted

On Fri, Dec 4, 2020 at 1:11 PM Sudeep Holla [off-list ref] wrote:

[...]

Agreed on all the comments, so have just removed those context.

quoted

We may need a way to indicate if we're to use the 32bit or 64bit
calling convention. OP-TEE depends on being able to use 32bit calls
here.

I assume it would be OP-TEE indicating it would like to use 32-bit.
I am thinking of API from the driver would be like:

int (*32bit_mode_only_set)(struct ffa_device *dev);

Let me know if that works for you. FF-A driver has no other way to evaluate
that and I really don't like that in DT 😉 

That should work for OP-TEE.

Thanks,
Jens