mbox series

[v3,0/1] Add ARM SCMI Powercap driver

Message ID 20221013174612.393830-1-cristian.marussi@arm.com (mailing list archive)
Headers show
Series Add ARM SCMI Powercap driver | expand

Message

Cristian Marussi Oct. 13, 2022, 5:46 p.m. UTC 
Hi all,

this patch builts on top of recently introduced SCMI v3.1 Powercap protocol
to implement an ARM SCMI Powercap driver which takes care to expose via the
Powercap framework all the SCMI Powercap zones that have been discovered
asking the SCMI platform firmware.

Basic testing has been performed against an emulated SCMI platform
supporting SCMIv3.1 Powercap protocol using powercap-utils.

A couple of fixes spotted with Smatch by Dan have been squashed into this
patch in V3.

Based on v6.0.

Thanks,
Cristian

---
v2 --> v3
 - rebased on v6.0
 - added review tag
 - squashed Dan Carpenter fixes into this powercap patch:
    https://lore.kernel.org/linux-arm-kernel/20220906142337.1697569-3-cristian.marussi@arm.com/
    https://lore.kernel.org/linux-arm-kernel/20220906142337.1697569-4-cristian.marussi@arm.com/

v1 --> v2
  - using clamp_t() to simplify normalizations
  - cleanup style in block of var declarations
  - refactor scale conversions code
  - add MAINTAINER entry
  - refactored normalizations and added dev_dbg

Cristian Marussi (1):
  powercap: arm_scmi: Add SCMI Powercap based driver

 MAINTAINERS                          |   1 +
 drivers/powercap/Kconfig             |  13 +
 drivers/powercap/Makefile            |   1 +
 drivers/powercap/arm_scmi_powercap.c | 509 +++++++++++++++++++++++++++
 4 files changed, 524 insertions(+)
 create mode 100644 drivers/powercap/arm_scmi_powercap.c