From: Punit Agrawal <punit.agrawal@arm.com>
To: linux-pm@vger.kernel.org
Cc: Punit Agrawal <punit.agrawal@arm.com>,
lm-sensors@lm-sensors.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org, liviu.dudau@arm.com,
edubezval@gmail.com, mark.rutland@arm.com, sudeep.holla@arm.com,
linux@roeck-us.net, viresh.kumar@linaro.org
Subject: [PATCH v2 00/10] Platform support for thermal management on Juno
Date: Mon, 3 Aug 2015 16:22:48 +0100 [thread overview]
Message-ID: <1438615378-14241-1-git-send-email-punit.agrawal@arm.com> (raw)
Hi,
The series adds support for thermal management on ARM Juno development
platform. As part of this development, common infrastructure is added
to support registering cpu cooling devices that work with the power
allocator thermal governor.
Patch 1 extends the CPU nodes binding to provide an optional dynamic
power coefficient which can be used to create a dynamic power model
for the CPUs. This model is used to constrain device power consumption
(using power_allocator governor) when the system is thermally
constrained.
Patches 2-3 extends the cpufreq-dt and arm_big_little driver to
register cpu cooling devices with the dynamic coefficient when
provided.
Patch 4 is a fix that aligns the behaviour of
thermal_zone_of_sensor_register with it's documented return value when
THERMAL_OF is configured off.
Patches 5-8 create a hwmon sensor driver for sensors provided by SCPI
firmware. Patch 7 adds support for the temperature sensors to register
with the thermal framework. This allows setting up platform thermals
using OF thermal bindings.
The last two patches add support for the sensors and the thermal zones
in the Juno device tree.
The Juno specific patches depend on SCPI and cpufreq patches[0] from
Sudeep. The SCPI protocol document with details of the sensor
interface can be found at [1], [2].
Thanks,
Punit
Changes v1->v2
- added documentation for the scpi-hwmon driver
- replaced static allocation of platform structure in scpi-hwmon.c
with dynamic allocation
- re-structured registering of thermal zones to better handle
error conditions
- reduced chattiness in scpi-hwmon.c
- corrected sensor numbering to align with hwmon documentation
- dynamic allocation of attributes and attribute groups
[0] http://thread.gmane.org/gmane.linux.kernel/2009735
[1] http://community.arm.com/servlet/JiveServlet/download/8401-45-18326/DUI0922B_scp_message_interface.pdf
[2] https://wiki.linaro.org/ARM/Juno?action=AttachFile&do=get&target=DUI0922B_scp_message_interface.pdf
v1: http://thread.gmane.org/gmane.linux.kernel/2002152
Punit Agrawal (10):
devicetree: bindings: Add optional dynamic-power-coefficient property
cpufreq-dt: Supply power coefficient when registering cooling devices
cpufreq: arm_big_little: Add support to register a cpufreq cooling
device
thermal: Fix thermal_zone_of_sensor_register to match documentation
Documentation: add DT bindings for ARM SCPI sensors
firmware: arm_scpi: Extend to support sensors
hwmon: Support sensors exported via ARM SCP interface
hwmon: Support registration of thermal zones for SCP temperature
sensors
arm64: dts: Add sensor node to Juno dt
arm64: dts: Create SoC thermal zone for Juno
Documentation/devicetree/bindings/arm/arm,scpi.txt | 15 ++
Documentation/devicetree/bindings/arm/cpus.txt | 15 ++
Documentation/hwmon/scpi-hwmon | 33 +++
arch/arm64/boot/dts/arm/juno-base.dtsi | 5 +
arch/arm64/boot/dts/arm/juno.dts | 50 ++++
drivers/cpufreq/arm_big_little.c | 52 +++-
drivers/cpufreq/cpufreq-dt.c | 9 +-
drivers/firmware/arm_scpi.c | 60 +++++
drivers/hwmon/Kconfig | 8 +
drivers/hwmon/Makefile | 1 +
drivers/hwmon/scpi-hwmon.c | 284 +++++++++++++++++++++
include/linux/scpi_protocol.h | 17 ++
include/linux/thermal.h | 2 +-
13 files changed, 546 insertions(+), 5 deletions(-)
create mode 100644 Documentation/hwmon/scpi-hwmon
create mode 100644 drivers/hwmon/scpi-hwmon.c
--
2.1.4
next reply other threads:[~2015-08-03 15:24 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-03 15:22 Punit Agrawal [this message]
2015-08-03 15:22 ` [PATCH v2 01/10] devicetree: bindings: Add optional dynamic-power-coefficient property Punit Agrawal
2015-08-03 15:22 ` [PATCH v2 02/10] cpufreq-dt: Supply power coefficient when registering cooling devices Punit Agrawal
2015-08-03 15:22 ` [PATCH v2 03/10] cpufreq: arm_big_little: Add support to register a cpufreq cooling device Punit Agrawal
2015-08-03 15:22 ` [PATCH v2 04/10] thermal: Fix thermal_zone_of_sensor_register to match documentation Punit Agrawal
2015-08-03 15:56 ` Guenter Roeck
2015-08-04 11:00 ` Punit Agrawal
2015-08-05 9:57 ` [PATCH v3] " Punit Agrawal
2015-08-05 14:51 ` Guenter Roeck
2015-08-03 15:22 ` [PATCH v2 05/10] Documentation: add DT bindings for ARM SCPI sensors Punit Agrawal
2015-09-03 15:08 ` Punit Agrawal
2015-08-03 15:22 ` [PATCH v2 06/10] firmware: arm_scpi: Extend to support sensors Punit Agrawal
2015-08-03 15:22 ` [PATCH v2 07/10] hwmon: Support sensors exported via ARM SCP interface Punit Agrawal
2015-08-04 21:32 ` Guenter Roeck
2015-08-05 10:17 ` Punit Agrawal
2015-08-03 15:22 ` [PATCH v2 08/10] hwmon: Support registration of thermal zones for SCP temperature sensors Punit Agrawal
2015-08-04 21:39 ` Guenter Roeck
2015-08-05 10:17 ` Punit Agrawal
2015-08-03 15:22 ` [PATCH v2 09/10] arm64: dts: Add sensor node to Juno dt Punit Agrawal
2015-08-03 15:22 ` [PATCH v2 10/10] arm64: dts: Create SoC thermal zone for Juno Punit Agrawal
2015-08-12 15:55 ` Liviu Dudau
2015-08-13 14:28 ` Punit Agrawal
2015-08-14 12:38 ` Punit Agrawal
2015-08-14 12:44 ` Punit Agrawal
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