[PATCH 0/6] of-thermal hardware trip points + Tegra124 SOCTHERM driver
rui.zhang at intel.com
Mon Jul 21 00:42:29 PDT 2014
what do you think of this patch set?
On Fri, 2014-06-27 at 11:11 +0300, Mikko Perttunen wrote:
> Hi everyone,
> this series adds support for hardware-tracked thermal trip points
> for the device tree thermal framework and introduces a new Tegra124 thermal
> driver that uses them.
> Hardware-tracked trip points are trip points that do not need to be polled;
> the hardware gives an interrupt when the trip point is reached. The device
> tree thermal framework has not previously given the sensor driver any
> information about set trip points, so using these has been impossible.
> This series adds a new callback from of-thermal to the driver to allow telling
> the driver about trip points. The driver only needs to track two trip points,
> the framework ensures that the current temperature lies between those two.
> Behavior for drivers that do not include this callback is unchanged.
> The Tegra124 SOCTHERM thermal driver that is included exposes four thermal zones
> (the thermctl thermal zones) with hardware-tracked trip point support. While the
> hardware supports four tracked trip points, only one is used.
> Mikko Perttunen (6):
> thermal: of: Add support for hardware-tracked trip points
> of: Add bindings for nvidia,tegra124-soctherm
> ARM: tegra: Add thermal trip points for Jetson TK1
> ARM: tegra: Add soctherm and thermal zones to Tegra124 device tree
> clk: tegra: Add soctherm and tsensor clocks to Tegra124 init table
> thermal: Add Tegra SOCTHERM thermal management driver
> .../devicetree/bindings/thermal/tegra-soctherm.txt | 32 ++
> arch/arm/boot/dts/tegra124-jetson-tk1.dts | 32 ++
> arch/arm/boot/dts/tegra124.dtsi | 48 ++
> drivers/clk/tegra/clk-tegra124.c | 2 +
> drivers/thermal/Kconfig | 7 +
> drivers/thermal/Makefile | 1 +
> drivers/thermal/of-thermal.c | 97 +++-
> drivers/thermal/tegra_soctherm.c | 553 +++++++++++++++++++++
> include/dt-bindings/thermal/tegra124-soctherm.h | 15 +
> include/linux/thermal.h | 3 +-
> 10 files changed, 785 insertions(+), 5 deletions(-)
> create mode 100644 Documentation/devicetree/bindings/thermal/tegra-soctherm.txt
> create mode 100644 drivers/thermal/tegra_soctherm.c
> create mode 100644 include/dt-bindings/thermal/tegra124-soctherm.h
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