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firmware: arm_scmi: Make shmem support optional for transports 

Upcoming new SCMI transports won't need any kind of shared memory support.
Compile shmem.c only if a shmem based transport is selected.

Link: https://lore.kernel.org/r/20210803131024.40280-10-cristian.marussi@arm.com
Co-developed-by: Peter Hilber <peter.hilber@opensynergy.com>
Signed-off-by: Igor Skalkin <igor.skalkin@opensynergy.com>
[ Peter: Adapted patch for submission to upstream. ]
Signed-off-by: Peter Hilber <peter.hilber@opensynergy.com>
[ Cristian: Adapted patch/commit_msg to new SCMI Kconfig layout ]
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
This commit is contained in:
Igor Skalkin 2021-08-03 14:10:18 +01:00 committed by Sudeep Holla
parent e8419c24ba
commit a7b1138b92
2 changed files with 9 additions and 1 deletions
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8
drivers/firmware/arm_scmi/Kconfig
View File

@ -30,10 +30,17 @@ config ARM_SCMI_HAVE_TRANSPORT
Used to trigger a build bug when trying to build SCMI without any
configured transport.
config ARM_SCMI_HAVE_SHMEM
bool
help
This declares whether a shared memory based transport for SCMI is
available.
config ARM_SCMI_TRANSPORT_MAILBOX
bool "SCMI transport based on Mailbox"
depends on MAILBOX
select ARM_SCMI_HAVE_TRANSPORT
select ARM_SCMI_HAVE_SHMEM
default y
help
Enable mailbox based transport for SCMI.
@ -45,6 +52,7 @@ config ARM_SCMI_TRANSPORT_SMC
bool "SCMI transport based on SMC"
depends on HAVE_ARM_SMCCC_DISCOVERY
select ARM_SCMI_HAVE_TRANSPORT
select ARM_SCMI_HAVE_SHMEM
default y
help
Enable SMC based transport for SCMI.

2
drivers/firmware/arm_scmi/Makefile
View File

@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
scmi-bus-y = bus.o
scmi-driver-y = driver.o notify.o
scmi-transport-y = shmem.o
scmi-transport-$(CONFIG_ARM_SCMI_HAVE_SHMEM) = shmem.o
scmi-transport-$(CONFIG_ARM_SCMI_TRANSPORT_MAILBOX) += mailbox.o
scmi-transport-$(CONFIG_ARM_SCMI_TRANSPORT_SMC) += smc.o
scmi-protocols-y = base.o clock.o perf.o power.o reset.o sensors.o system.o voltage.o