firmware: arm_scmi: Add notification callbacks-registration

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Add the core SCMI notifications callbacks-registration support: allow
users to register their own callbacks against the desired events.

Whenever a registration request is issued against a still non existent
event, mark such request as pending for later processing, in order to
account for possible late initializations of SCMI Protocols associated
to loadable drivers.

Link: https://lore.kernel.org/r/20200701155348.52864-3-cristian.marussi@arm.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

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Cristian Marussi 2020-07-01 16:53:41 +01:00 • committed by Sudeep Holla

parent 1fc2dd1864

commit e7c215f358

2 changed files with 772 additions and 0 deletions

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726

drivers/firmware/arm_scmi/notify.c

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46

include/linux/scmi_protocol.h

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