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    Subject[PATCH v2 00/10] Platform support for thermal management on Juno
    Date
    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



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