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Hi,
this series introduces the support for the new SCMI Voltage Domain Protocol
defined by the upcoming SCMIv3.0 specification, whose BETA release is
available at [1].
Afterwards, a new generic SCMI Regulator driver is developed on top of the
new SCMI VD Protocol.
In V4 Patch 3/5 introduced a needed fix in Regulator framework to cope with
generic named nodes.
The series is currently based on for-next/scmi [2] on top of:
commit b141fca08207 ("firmware: arm_scmi: Fix missing destroy_workqueue()")
Any feedback welcome,
Thanks,
Cristian
---
v5 --> v6
- reordered dt bindings patch
- removed single field struct
- reviewed args to scmi_init_voltage_levels()
- allocating scmi_voltage_info_array contiguously
v4 --> v5
- rebased
- VD Protocol
- removed inline
- moved segmented intervals defines
- fixed some macros complaints by checkpatch
v3 --> v4
- DT bindings
- using generic node names
- listing explicitly subset of supported regulators bindings
- SCMI Regulator
- using of_match_full_name core regulator flag
- avoid coccinelle false flag complaints
- VD Protocol
- avoid coccinelle false flag complaints
- avoiding fixed size typing
v2 --> v3
- DT bindings
- avoid awkard examples based on _cpu/_gpu regulators
- SCMI Regulator
- remove multiple linear mappings support
- removed duplicated voltage name printout
- added a few comments
- simplified return path in scmi_reg_set_voltage_sel()
- VD Protocol
- restrict segmented voltage domain descriptors to one triplet
- removed unneeded inline
- free allocated resources for invalid voltage domain
- added __must_check to info_get voltage operations
- added a few comments
- removed fixed size typing from struct voltage_info
v1 --> v2
- rebased on for-next/scmi v5.10
- DT bindings
- removed any reference to negative voltages
- SCMI Regulator
- removed duplicate regulator naming
- removed redundant .get/set_voltage ops: only _sel variants implemented
- removed condexpr on fail path to increase readability
- VD Protocol
- fix voltage levels query loop to reload full cmd description
between iterations as reported by Etienne Carriere
- ensure transport rx buffer is properly sized calli scmi_reset_rx_to_maxsz
between transfers
[1]:https://developer.arm.com/documentation/den0056/c/
[2]:https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux.git/log/?h=for-next/scmi
Cristian Marussi (5):
firmware: arm_scmi: Add Voltage Domain Support
firmware: arm_scmi: add SCMI Voltage Domain devname
regulator: core: add of_match_full_name boolean flag
dt-bindings: arm: add support for SCMI Regulators
regulator: add SCMI driver
.../devicetree/bindings/arm/arm,scmi.txt | 43 ++
drivers/firmware/arm_scmi/Makefile | 2 +-
drivers/firmware/arm_scmi/common.h | 1 +
drivers/firmware/arm_scmi/driver.c | 3 +
drivers/firmware/arm_scmi/voltage.c | 380 ++++++++++++++++
drivers/regulator/Kconfig | 9 +
drivers/regulator/Makefile | 1 +
drivers/regulator/of_regulator.c | 8 +-
drivers/regulator/scmi-regulator.c | 409 ++++++++++++++++++
include/linux/regulator/driver.h | 3 +
include/linux/scmi_protocol.h | 64 +++
11 files changed, 920 insertions(+), 3 deletions(-)
create mode 100644 drivers/firmware/arm_scmi/voltage.c
create mode 100644 drivers/regulator/scmi-regulator.c
--
2.17.1
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