Thread (34 messages) flat view 34 messages, 7 authors, 2017-11-21

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

From: viresh.kumar@linaro.org (Viresh Kumar)
Date: 2017-11-07 06:15:46
Also in: linux-devicetree, linux-pm, lkml

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" <redacted>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: linux-pm at vger.kernel.org
Signed-off-by: Sudeep Holla <redacted>
---
 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@linaro.org>

-- 
viresh
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