On Mon, May 10, 2021 at 7:22 PM Peter Hilber <peter.hilber@xxxxxxxxxxxxxxx> wrote: ..... > --- a/drivers/mailbox/Kconfig > +++ b/drivers/mailbox/Kconfig > @@ -1,6 +1,7 @@ > # SPDX-License-Identifier: GPL-2.0-only > menuconfig MAILBOX > bool "Mailbox Hardware Support" > + select ARM_SCMI_HAVE_SHMEM > help > Mailbox is a framework to control hardware communication between > on-chip processors through queued messages and interrupt driven > Isn't this too generic? Not all platforms, with a mailbox controller, use SCMI as the protocol. thnx.