linux-kernel - Re: [PATCH 0/4] Add support for SCMIv3.0 Voltage Domain Protocol and SCMI-Regulator

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Message-ID: <20201009124056.GB32363@e119603-lin.cambridge.arm.com>
Date:   Fri, 9 Oct 2020 13:42:48 +0100
From:   Cristian Marussi <cristian.marussi@....com>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        robh@...nel.org, satyakim@....qualcomm.com, sudeep.holla@....com,
        broonie@...nel.org, james.quinlan@...adcom.com,
        Jonathan.Cameron@...wei.com, etienne.carriere@...aro.org,
        lukasz.luba@....com
Subject: Re: [PATCH 0/4] Add support for SCMIv3.0 Voltage Domain Protocol and
 SCMI-Regulator

On Mon, Oct 05, 2020 at 05:38:52PM -0700, Florian Fainelli wrote:
> 
> 
> On 10/5/2020 3:26 PM, Cristian Marussi wrote:
> >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.
> >
> >The series is currently based on for-next/scmi [2] on top of:
> >
> >commit 66d90f6ecee7 ("firmware: arm_scmi: Enable building as a single
> >		     module")
> >
> >Any feedback welcome,
> 
> Well, this is just great! We were right about to develop a proprietary SCMI
> protocol in order to control a locked down PMIC accessible behind a secured
> firmware. We would have done essentially just that since the use case is to
> control the various regulators exposed by this PMIC over SCMI. Thanks a lot!
> 

You're welcome :D ... any feedback from your independent testing will be
appreciated.

Thanks

Cristian
> >
> >Thanks,
> >
> >Cristian
> >
> >[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 (4):
> >   firmware: arm_scmi: Add Voltage Domain Support
> >   firmware: arm_scmi: add SCMI Voltage Domain devname
> >   regulator: add SCMI driver
> >   dt-bindings: arm: add support for SCMI Regulators
> >
> >  .../devicetree/bindings/arm/arm,scmi.txt      |  44 ++
> >  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           | 378 ++++++++++++++
> >  drivers/regulator/Kconfig                     |   9 +
> >  drivers/regulator/Makefile                    |   1 +
> >  drivers/regulator/scmi-regulator.c            | 488 ++++++++++++++++++
> >  include/linux/scmi_protocol.h                 |  64 +++
> >  9 files changed, 989 insertions(+), 1 deletion(-)
> >  create mode 100644 drivers/firmware/arm_scmi/voltage.c
> >  create mode 100644 drivers/regulator/scmi-regulator.c
> >
> 
> -- 
> Florian