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

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Pull thermal management update from Zhang Rui:
 "Summary:

   - of-thermal extension to allow drivers to register and use its
     functionality in a better way, without exploiting thermal core.
     From Lukasz Majewski.

   - Fix a bug in intel_soc_dts_thermal driver which calls a sleep
     function in interrupt handler.  From Maurice Petallo.

   - add a thermal UAPI header file for exporting the thermal generic
     netlink information to user-space.  From Florian Fainelli.

   - First round of refactoring in Exynos driver.  Bartlomiej and Lukasz
     are attempting to make it lean and easier to understand.

   - New thermal driver for Rockchip (rk3288), with support for DT
     thermal.  From Caesar Wang.

   - New thermal driver for Nvidia, Tegra124 SOCTHERM driver, with
     support for DT thermal.  From Mikko Perttunen.

   - New cooling device, based on common clock framework.  From Eduardo
     Valentin.

   - a couple of small fixes in thermal core framework.  From Srinivas
     Pandruvada, Javi Merino, Luis Henriques.

   - Dropping Armada A375-Z1 SoC thermal support as the chip is not in
     the market, armada folks decided to drop its support.

   - a couple of small fixes and cleanups in int340x thermal driver"

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (58 commits)
  thermal: provide an UAPI header file
  Thermal/int340x: Clear the error value of the last acpi_bus_get_device() call
  thermal/powerclamp: add id for braswell cpu
  thermal: Intel SoC DTS: Don't do thermal zone update inside spin_lock
  Thermal: fix platform_no_drv_owner.cocci warnings
  Thermal/int340x: avoid unnecessary pointer casting
  thermal: int3403: Delete a check before thermal_zone_device_unregister()
  thermal/int3400: export uuids
  thermal: of: Extend current of-thermal.c code to allow setting emulated temp
  thermal: of: Extend of-thermal to export table of trip points
  thermal: of: Rename struct __thermal_trip to struct thermal_trip
  thermal: of: Extend of-thermal.c to provide check if trip point is valid
  thermal: of: Extend of-thermal.c to provide number of trip points
  thermal: Fix error path in thermal_init()
  thermal: lock the thermal zone when switching governors
  thermal: core: ignore invalid trip temperature
  thermal: armada: Remove support for A375-Z1 SoC
  thermal: rockchip: add driver for thermal
  dt-bindings: document Rockchip thermal
  thermal: exynos: remove exynos_tmu_data.h include
  ...
This commit is contained in:
Linus Torvalds
2014-12-17 10:16:27 -08:00
parent 0b4954c469 2707dbd09a
commit 2efda9042d
34 changed files with 2788 additions and 859 deletions
Download Patch File Download Diff File Expand all files Collapse all files

65
include/linux/clock_cooling.h Normal file
View File

@@ -0,0 +1,65 @@
/*
* linux/include/linux/clock_cooling.h
*
* Copyright (C) 2014 Eduardo Valentin <edubezval@gmail.com>
*
* Copyright (C) 2013 Texas Instruments Inc.
* Contact: Eduardo Valentin <eduardo.valentin@ti.com>
*
* Highly based on cpu_cooling.c.
* Copyright (C) 2012 Samsung Electronics Co., Ltd(http://www.samsung.com)
* Copyright (C) 2012 Amit Daniel <amit.kachhap@linaro.org>
*
* 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; version 2 of the License.
*
* 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.
*/
#ifndef __CPU_COOLING_H__
#define __CPU_COOLING_H__
#include <linux/of.h>
#include <linux/thermal.h>
#include <linux/cpumask.h>
#ifdef CONFIG_CLOCK_THERMAL
/**
* clock_cooling_register - function to create clock cooling device.
* @dev: struct device pointer to the device used as clock cooling device.
* @clock_name: string containing the clock used as cooling mechanism.
*/
struct thermal_cooling_device *
clock_cooling_register(struct device *dev, const char *clock_name);
/**
* clock_cooling_unregister - function to remove clock cooling device.
* @cdev: thermal cooling device pointer.
*/
void clock_cooling_unregister(struct thermal_cooling_device *cdev);
unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev,
unsigned long freq);
#else /* !CONFIG_CLOCK_THERMAL */
static inline struct thermal_cooling_device *
clock_cooling_register(struct device *dev, const char *clock_name)
{
return NULL;
}
static inline
void clock_cooling_unregister(struct thermal_cooling_device *cdev)
{
}
static inline
unsigned long clock_cooling_get_level(struct thermal_cooling_device *cdev,
unsigned long freq)
{
return THERMAL_CSTATE_INVALID;
}
#endif /* CONFIG_CLOCK_THERMAL */
#endif /* __CPU_COOLING_H__ */

73
include/linux/thermal.h
View File

@@ -29,10 +29,10 @@
#include <linux/idr.h>
#include <linux/device.h>
#include <linux/workqueue.h>
#include <uapi/linux/thermal.h>
#define THERMAL_TRIPS_NONE -1
#define THERMAL_MAX_TRIPS 12
#define THERMAL_NAME_LENGTH 20
/* invalid cooling state */
#define THERMAL_CSTATE_INVALID -1UL
@@ -49,11 +49,6 @@
#define MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, off) (((t) / 100) + (off))
#define MILLICELSIUS_TO_DECI_KELVIN(t) MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, 2732)
/* Adding event notification support elements */
#define THERMAL_GENL_FAMILY_NAME "thermal_event"
#define THERMAL_GENL_VERSION 0x01
#define THERMAL_GENL_MCAST_GROUP_NAME "thermal_mc_grp"
/* Default Thermal Governor */
#if defined(CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE)
#define DEFAULT_THERMAL_GOVERNOR "step_wise"
@@ -86,30 +81,6 @@ enum thermal_trend {
THERMAL_TREND_DROP_FULL, /* apply lowest cooling action */
};
/* Events supported by Thermal Netlink */
enum events {
THERMAL_AUX0,
THERMAL_AUX1,
THERMAL_CRITICAL,
THERMAL_DEV_FAULT,
};
/* attributes of thermal_genl_family */
enum {
THERMAL_GENL_ATTR_UNSPEC,
THERMAL_GENL_ATTR_EVENT,
__THERMAL_GENL_ATTR_MAX,
};
#define THERMAL_GENL_ATTR_MAX (__THERMAL_GENL_ATTR_MAX - 1)
/* commands supported by the thermal_genl_family */
enum {
THERMAL_GENL_CMD_UNSPEC,
THERMAL_GENL_CMD_EVENT,
__THERMAL_GENL_CMD_MAX,
};
#define THERMAL_GENL_CMD_MAX (__THERMAL_GENL_CMD_MAX - 1)
struct thermal_zone_device_ops {
int (*bind) (struct thermal_zone_device *,
struct thermal_cooling_device *);
@@ -289,19 +260,49 @@ struct thermal_genl_event {
enum events event;
};
/**
* struct thermal_zone_of_device_ops - scallbacks for handling DT based zones
*
* Mandatory:
* @get_temp: a pointer to a function that reads the sensor temperature.
*
* Optional:
* @get_trend: a pointer to a function that reads the sensor temperature trend.
* @set_emul_temp: a pointer to a function that sets sensor emulated
* temperature.
*/
struct thermal_zone_of_device_ops {
int (*get_temp)(void *, long *);
int (*get_trend)(void *, long *);
int (*set_emul_temp)(void *, unsigned long);
};
/**
* struct thermal_trip - representation of a point in temperature domain
* @np: pointer to struct device_node that this trip point was created from
* @temperature: temperature value in miliCelsius
* @hysteresis: relative hysteresis in miliCelsius
* @type: trip point type
*/
struct thermal_trip {
struct device_node *np;
unsigned long int temperature;
unsigned long int hysteresis;
enum thermal_trip_type type;
};
/* Function declarations */
#ifdef CONFIG_THERMAL_OF
struct thermal_zone_device *
thermal_zone_of_sensor_register(struct device *dev, int id,
void *data, int (*get_temp)(void *, long *),
int (*get_trend)(void *, long *));
thermal_zone_of_sensor_register(struct device *dev, int id, void *data,
const struct thermal_zone_of_device_ops *ops);
void thermal_zone_of_sensor_unregister(struct device *dev,
struct thermal_zone_device *tz);
#else
static inline struct thermal_zone_device *
thermal_zone_of_sensor_register(struct device *dev, int id,
void *data, int (*get_temp)(void *, long *),
int (*get_trend)(void *, long *))
thermal_zone_of_sensor_register(struct device *dev, int id, void *data,
const struct thermal_zone_of_device_ops *ops)
{
return NULL;
}