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, 18 insertions, 119 deletions

diff --git a/include/linux/platform_data/exynos_thermal.h b/include/linux/platform_data/exynos_thermal.h
deleted file mode 100644
index da7e6274b175..000000000000
--- a/include/linux/platform_data/exynos_thermal.h
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * exynos_thermal.h - Samsung EXYNOS TMU (Thermal Management Unit)
- *
- *  Copyright (C) 2011 Samsung Electronics
- *  Donggeun Kim <dg77.kim@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#ifndef _LINUX_EXYNOS_THERMAL_H
-#define _LINUX_EXYNOS_THERMAL_H
-#include <linux/cpu_cooling.h>
-
-enum calibration_type {
-	TYPE_ONE_POINT_TRIMMING,
-	TYPE_TWO_POINT_TRIMMING,
-	TYPE_NONE,
-};
-
-enum soc_type {
-	SOC_ARCH_EXYNOS4210 = 1,
-	SOC_ARCH_EXYNOS,
-};
-/**
- * struct freq_clip_table
- * @freq_clip_max: maximum frequency allowed for this cooling state.
- * @temp_level: Temperature level at which the temperature clipping will
- *	happen.
- * @mask_val: cpumask of the allowed cpu's where the clipping will take place.
- *
- * This structure is required to be filled and passed to the
- * cpufreq_cooling_unregister function.
- */
-struct freq_clip_table {
-	unsigned int freq_clip_max;
-	unsigned int temp_level;
-	const struct cpumask *mask_val;
-};
-
-/**
- * struct exynos_tmu_platform_data
- * @threshold: basic temperature for generating interrupt
- *	       25 <= threshold <= 125 [unit: degree Celsius]
- * @threshold_falling: differntial value for setting threshold
- *		       of temperature falling interrupt.
- * @trigger_levels: array for each interrupt levels
- *	[unit: degree Celsius]
- *	0: temperature for trigger_level0 interrupt
- *	   condition for trigger_level0 interrupt:
- *		current temperature > threshold + trigger_levels[0]
- *	1: temperature for trigger_level1 interrupt
- *	   condition for trigger_level1 interrupt:
- *		current temperature > threshold + trigger_levels[1]
- *	2: temperature for trigger_level2 interrupt
- *	   condition for trigger_level2 interrupt:
- *		current temperature > threshold + trigger_levels[2]
- *	3: temperature for trigger_level3 interrupt
- *	   condition for trigger_level3 interrupt:
- *		current temperature > threshold + trigger_levels[3]
- * @trigger_level0_en:
- *	1 = enable trigger_level0 interrupt,
- *	0 = disable trigger_level0 interrupt
- * @trigger_level1_en:
- *	1 = enable trigger_level1 interrupt,
- *	0 = disable trigger_level1 interrupt
- * @trigger_level2_en:
- *	1 = enable trigger_level2 interrupt,
- *	0 = disable trigger_level2 interrupt
- * @trigger_level3_en:
- *	1 = enable trigger_level3 interrupt,
- *	0 = disable trigger_level3 interrupt
- * @gain: gain of amplifier in the positive-TC generator block
- *	0 <= gain <= 15
- * @reference_voltage: reference voltage of amplifier
- *	in the positive-TC generator block
- *	0 <= reference_voltage <= 31
- * @noise_cancel_mode: noise cancellation mode
- *	000, 100, 101, 110 and 111 can be different modes
- * @type: determines the type of SOC
- * @efuse_value: platform defined fuse value
- * @cal_type: calibration type for temperature
- * @freq_clip_table: Table representing frequency reduction percentage.
- * @freq_tab_count: Count of the above table as frequency reduction may
- *	applicable to only some of the trigger levels.
- *
- * This structure is required for configuration of exynos_tmu driver.
- */
-struct exynos_tmu_platform_data {
-	u8 threshold;
-	u8 threshold_falling;
-	u8 trigger_levels[4];
-	bool trigger_level0_en;
-	bool trigger_level1_en;
-	bool trigger_level2_en;
-	bool trigger_level3_en;
-
-	u8 gain;
-	u8 reference_voltage;
-	u8 noise_cancel_mode;
-	u32 efuse_value;
-
-	enum calibration_type cal_type;
-	enum soc_type type;
-	struct freq_clip_table freq_tab[4];
-	unsigned int freq_tab_count;
-};
-#endif /* _LINUX_EXYNOS_THERMAL_H */
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index a386a1cbb6e1..b268d3cf7ae3 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -207,6 +207,16 @@ struct thermal_bind_params {
 	 * See Documentation/thermal/sysfs-api.txt for more information.
 	 */
 	int trip_mask;
+
+	/*
+	 * This is an array of cooling state limits. Must have exactly
+	 * 2 * thermal_zone.number_of_trip_points. It is an array consisting
+	 * of tuples <lower-state upper-state> of state limits. Each trip
+	 * will be associated with one state limit tuple when binding.
+	 * A NULL pointer means <THERMAL_NO_LIMITS THERMAL_NO_LIMITS>
+	 * on all trips.
+	 */
+	unsigned long *binding_limits;
 	int (*match) (struct thermal_zone_device *tz,
 			struct thermal_cooling_device *cdev);
 };
@@ -214,6 +224,14 @@ struct thermal_bind_params {
 /* Structure to define Thermal Zone parameters */
 struct thermal_zone_params {
 	char governor_name[THERMAL_NAME_LENGTH];
+
+	/*
+	 * a boolean to indicate if the thermal to hwmon sysfs interface
+	 * is required. when no_hwmon == false, a hwmon sysfs interface
+	 * will be created. when no_hwmon == true, nothing will be done
+	 */
+	bool no_hwmon;
+
 	int num_tbps;	/* Number of tbp entries */
 	struct thermal_bind_params *tbp;
 };