kernel.git/drivers/firmware/arm_scmi/system.c, branch linux-6.3.y

firmware: arm_scmi: Add SCMI v3.1 System Power extensions

2022-07-04T13:28:42Z

Add support for SCMIv3.1 System Power optional timeout field while dispatching SYSTEM_POWER_STATE_NOTIFIER notification. Link: https://lore.kernel.org/r/20220704101933.2981635-3-cristian.marussi@arm.com Signed-off-by: Cristian Marussi Signed-off-by: Sudeep Holla

firmware: arm_scmi: Split protocol specific definitions in a dedicated header

2022-04-28T17:22:51Z

Move some SCMI protocol specific definitions from common.h into a the new dedicated protocols.h header so that SCMI protocols core code can include only what it needs; this is going to be useful to avoid the risk of growing indefinitely the dimension of common.h, especially when introducing some common protocols helper functions. Header common.h will continue to be included by SCMI core and transport layers. Link: https://lore.kernel.org/r/20220330150551.2573938-10-cristian.marussi@arm.com Signed-off-by: Cristian Marussi Signed-off-by: Sudeep Holla

firmware: arm_scmi: Make protocols initialisation fail on basic errors

2022-04-28T09:47:19Z

Bail out of protocol initialisation routine early when basic information about protocol version and attributes could not be retrieved. Failing to act this way can lead to a successfully initialized SCMI protocol which is in fact not fully functional. Link: https://lore.kernel.org/r/20220330150551.2573938-3-cristian.marussi@arm.com Signed-off-by: Cristian Marussi Signed-off-by: Sudeep Holla

firmware: arm_scmi: Add protocol modularization support

2021-03-30T15:35:16Z

Extend SCMI protocols accounting mechanism to address possible module usage and add the support to possibly define new protocols as loadable modules. Keep the standard protocols built into the SCMI core. Link: https://lore.kernel.org/r/20210316124903.35011-38-cristian.marussi@arm.com Tested-by: Florian Fainelli Signed-off-by: Cristian Marussi Signed-off-by: Sudeep Holla

firmware: arm_scmi: Cleanup events registration transient code

2021-03-30T15:35:15Z

Remove all the events registration code used to ease the transition to the new interface based on protocol handles. Link: https://lore.kernel.org/r/20210316124903.35011-35-cristian.marussi@arm.com Tested-by: Florian Fainelli Signed-off-by: Cristian Marussi Signed-off-by: Sudeep Holla

firmware: arm_scmi: Port systempower protocol to new protocols interface

2021-03-30T15:35:15Z

Convert internals of protocol implementation to use protocol handles and expose a new protocol operations interface for SCMI driver using the new get/put common operations. Remove handle->system_priv now unused. Link: https://lore.kernel.org/r/20210316124903.35011-28-cristian.marussi@arm.com Tested-by: Florian Fainelli Signed-off-by: Cristian Marussi Signed-off-by: Sudeep Holla

firmware: arm_scmi: Convert events registration to protocol handles

2021-03-29T09:00:35Z

Convert all refactored events registration routines to use protocol handles. In order to maintain bisectability and to allow protocols and drivers to be later ported to the new protocol handle interface one by one, introduce here also some transient code that will be removed later in order to ease such transition. Link: https://lore.kernel.org/r/20210316124903.35011-8-cristian.marussi@arm.com Tested-by: Florian Fainelli Signed-off-by: Cristian Marussi Signed-off-by: Sudeep Holla

firmware: arm_scmi: Refactor events registration

2021-03-29T09:00:35Z

Add a new refactored protocol events registration helper and invoke it from the centralized initialization process triggered by get_ops() and friends. Also add a `get_num_sources` as a new optional callback amongst protocol events operations. Finally remove events registration call-sites from within the legacy protocol init routines. Link: https://lore.kernel.org/r/20210316124903.35011-7-cristian.marussi@arm.com Tested-by: Florian Fainelli Signed-off-by: Cristian Marussi Signed-off-by: Sudeep Holla

firmware: arm_scmi: Extend protocol registration interfaces

2021-03-29T08:40:47Z

Extend common protocol registration routines and provide some new generic protocols get/put helpers that can track protocols usage and automatically perform the proper initialization and de-initialization on demand when required. Convert all standard protocols to use this new registration scheme while keeping them all still using the usual initialization logic bound to SCMI devices probing. Link: https://lore.kernel.org/r/20210316124903.35011-2-cristian.marussi@arm.com Tested-by: Florian Fainelli Signed-off-by: Cristian Marussi Signed-off-by: Sudeep Holla

firmware: arm_scmi: Move scmi protocols registration into the driver

2020-09-14T06:30:55Z

In preparation to enable building SCMI as a single module, let us move the SCMI protocol registration call into the driver. This enables us to also add unregistration of the SCMI protocols. The main reason for this is to keep it simple instead of maintaining it as separate modules and dealing with all possible initcall races and deferred probe handling. We can move it as separate modules if needed in future. Link: https://lore.kernel.org/r/20200907195046.56615-4-sudeep.holla@arm.com Tested-by: Cristian Marussi Signed-off-by: Sudeep Holla