[PATCH v2 1/3] powercap: arm_scmi: Add SCMI Powercap based driver

Lukasz Luba lukasz.luba at arm.com
Mon Oct 10 06:14:10 PDT 2022


Hi Cristian,

On 9/6/22 15:23, Cristian Marussi wrote:
> Add a powercap driver that, using the ARM SCMI Protocol to query the SCMI
> platform firmware for the list of existing Powercap domains, registers all
> of such discovered domains under the new 'arm-scmi' powercap control type.
> 
> A new simple powercap zone and constraint is registered for all the SCMI
> powercap zones that are found.
> 
> Cc: Rafael J. Wysocki <rafael at kernel.org>
> Cc: linux-pm at vger.kernel.org
> Signed-off-by: Cristian Marussi <cristian.marussi at 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
> vOLD --> v1
> - fix _init cleaning up powerctrl zone on failure
> - removed uneeded casting
> - simplified normalization helpers
> ---
>   MAINTAINERS                          |   1 +
>   drivers/powercap/Kconfig             |  13 +
>   drivers/powercap/Makefile            |   1 +
>   drivers/powercap/arm_scmi_powercap.c | 508 +++++++++++++++++++++++++++
>   4 files changed, 523 insertions(+)
>   create mode 100644 drivers/powercap/arm_scmi_powercap.c
> 

Thanks for addressing my comments.
The code LGTM

Reviewed-by: Lukasz Luba <lukasz.luba at arm.com>

Regards,
Lukasz



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