Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux

Pull thermal management updates from Zhang Rui:
 "We have a lot of SOC changes and a few thermal core fixes this time.

  The biggest change is about exynos thermal driver restructure.  The
  patch set adds TMU (Thermal management Unit) driver support for
  exynos5440 platform.  There are 3 instances of the TMU controllers so
  necessary cleanup/re-structure is done to handle multiple thermal
  zone.

  The next biggest change is the introduction of the imx thermal driver.
  It adds the imx thermal support using Temperature Monitor (TEMPMON)
  block found on some Freescale i.MX SoCs.  The driver uses syscon
  regmap interface to access TEMPMON control registers and calibration
  data, and supports cpufreq as the cooling device.

  Highlights:

   - restructure exynos thermal driver.

   - introduce new imx thermal driver.

   - fix a bug in thermal core, which powers on the fans unexpectedly
     after resume from suspend"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (46 commits)
  drivers: thermal: add check when unregistering cpu cooling
  thermal: thermal_core: allow binding with limits on bind_params
  drivers: thermal: make usage of CONFIG_THERMAL_HWMON optional
  drivers: thermal: parent virtual hwmon with thermal zone
  thermal: hwmon: move hwmon support to single file
  thermal: exynos: Clean up non-DT remnants
  thermal: exynos: Fix potential NULL pointer dereference
  thermal: exynos: Fix typos in Kconfig
  thermal: ti-soc-thermal: Ensure to compute thermal trend
  thermal: ti-soc-thermal: Set the bandgap mask counter delay value
  thermal: ti-soc-thermal: Initialize counter_delay field for TI DRA752 sensors
  thermal: step_wise: return instance->target by default
  thermal: step_wise: cdev only needs update on a new target state
  Thermal/cpu_cooling: Return directly for the cpu out of allowed_cpus in the cpufreq_thermal_notifier()
  thermal: exynos_tmu: fix wrong error check for mapped memory
  thermal: imx: implement thermal alarm interrupt handling
  thermal: imx: dynamic passive and SoC specific critical trip points
  Documentation: thermal: Explain the exynos thermal driver model
  ARM: dts: thermal: exynos: Add documentation for Exynos SoC thermal bindings
  thermal: exynos: Support for TMU regulator defined at device tree
  ...

2 files changed, 72 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/thermal/exynos-thermal.txt b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
new file mode 100644
index 0000000..284f530
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/exynos-thermal.txt
@@ -0,0 +1,55 @@
+* Exynos Thermal Management Unit (TMU)
+
+** Required properties:
+
+- compatible : One of the following:
+	       "samsung,exynos4412-tmu"
+	       "samsung,exynos4210-tmu"
+	       "samsung,exynos5250-tmu"
+	       "samsung,exynos5440-tmu"
+- interrupt-parent : The phandle for the interrupt controller
+- reg : Address range of the thermal registers. For soc's which has multiple
+	instances of TMU and some registers are shared across all TMU's like
+	interrupt related then 2 set of register has to supplied. First set
+	belongs	to each instance of TMU and second set belongs to common TMU
+	registers.
+- interrupts : Should contain interrupt for thermal system
+- clocks : The main clock for TMU device
+- clock-names : Thermal system clock name
+- vtmu-supply: This entry is optional and provides the regulator node supplying
+		voltage to TMU. If needed this entry can be placed inside
+		board/platform specific dts file.
+
+Example 1):
+
+	tmu@100C0000 {
+		compatible = "samsung,exynos4412-tmu";
+		interrupt-parent = <&combiner>;
+		reg = <0x100C0000 0x100>;
+		interrupts = <2 4>;
+		clocks = <&clock 383>;
+		clock-names = "tmu_apbif";
+		status = "disabled";
+		vtmu-supply = <&tmu_regulator_node>;
+	};
+
+Example 2):
+
+	tmuctrl_0: tmuctrl@160118 {
+		compatible = "samsung,exynos5440-tmu";
+		reg = <0x160118 0x230>, <0x160368 0x10>;
+		interrupts = <0 58 0>;
+		clocks = <&clock 21>;
+		clock-names = "tmu_apbif";
+	};
+
+Note: For multi-instance tmu each instance should have an alias correctly
+numbered in "aliases" node.
+
+Example:
+
+aliases {
+	tmuctrl0 = &tmuctrl_0;
+	tmuctrl1 = &tmuctrl_1;
+	tmuctrl2 = &tmuctrl_2;
+};
diff --git a/Documentation/devicetree/bindings/thermal/imx-thermal.txt b/Documentation/devicetree/bindings/thermal/imx-thermal.txt
new file mode 100644
index 0000000..541c25e
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/imx-thermal.txt
@@ -0,0 +1,17 @@
+* Temperature Monitor (TEMPMON) on Freescale i.MX SoCs
+
+Required properties:
+- compatible : "fsl,imx6q-thermal"
+- fsl,tempmon : phandle pointer to system controller that contains TEMPMON
+  control registers, e.g. ANATOP on imx6q.
+- fsl,tempmon-data : phandle pointer to fuse controller that contains TEMPMON
+  calibration data, e.g. OCOTP on imx6q.  The details about calibration data
+  can be found in SoC Reference Manual.
+
+Example:
+
+tempmon {
+	compatible = "fsl,imx6q-tempmon";
+	fsl,tempmon = <&anatop>;
+	fsl,tempmon-data = <&ocotp>;
+};