Re: [PATCH v4 19/20] cpufreq: add support for CPU DVFS based on SCMI message protocol

From: Viresh Kumar
Date: Tue Nov 07 2017 - 01:16:08 EST


On 03-11-17, 14:47, Sudeep Holla wrote:
> On some ARM based systems, a separate Cortex-M based System Control
> Processor(SCP) provides the overall power, clock, reset and system
> control including CPU DVFS. SCMI Message Protocol is used to
> communicate with the SCP.
>
> This patch adds a cpufreq driver for such systems using SCMI interface
> to drive CPU DVFS.
>
> Cc: "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>
> Cc: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
> Cc: linux-pm@xxxxxxxxxxxxxxx
> Signed-off-by: Sudeep Holla <sudeep.holla@xxxxxxx>
> ---
> MAINTAINERS | 2 +-
> drivers/cpufreq/Kconfig.arm | 11 ++
> drivers/cpufreq/Makefile | 1 +
> drivers/cpufreq/scmi-cpufreq.c | 274 +++++++++++++++++++++++++++++++++++++++++
> 4 files changed, 287 insertions(+), 1 deletion(-)
> create mode 100644 drivers/cpufreq/scmi-cpufreq.c

Acked-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>

--
viresh