linux-kernel - [PATCH 0/6] of-thermal hardware trip points + Tegra124 SOCTHERM driver

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Date:	Fri, 27 Jun 2014 11:11:33 +0300
From:	Mikko Perttunen <mperttunen@...dia.com>
To:	<rui.zhang@...el.com>, <edubezval@...il.com>,
	<swarren@...dotorg.org>, <thierry.reding@...il.com>,
	<pdeschrijver@...dia.com>, <mlongnecker@...dia.com>
CC:	<linux-pm@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	Mikko Perttunen <mperttunen@...dia.com>
Subject: [PATCH 0/6] of-thermal hardware trip points + Tegra124 SOCTHERM driver

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

-- 
1.8.1.5

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