Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 1 | /* |
| 2 | * thermal.h ($Revision: 0 $) |
| 3 | * |
| 4 | * Copyright (C) 2008 Intel Corp |
| 5 | * Copyright (C) 2008 Zhang Rui <rui.zhang@intel.com> |
| 6 | * Copyright (C) 2008 Sujith Thomas <sujith.thomas@intel.com> |
| 7 | * |
| 8 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; version 2 of the License. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License along |
| 19 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 20 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
| 21 | * |
| 22 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
| 23 | */ |
| 24 | |
| 25 | #ifndef __THERMAL_H__ |
| 26 | #define __THERMAL_H__ |
| 27 | |
Eduardo Valentin | a116b5d | 2013-09-26 15:55:01 -0400 | [diff] [blame] | 28 | #include <linux/of.h> |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 29 | #include <linux/idr.h> |
| 30 | #include <linux/device.h> |
Matthew Garrett | b1569e9 | 2008-12-03 17:55:32 +0000 | [diff] [blame] | 31 | #include <linux/workqueue.h> |
Florian Fainelli | af6c9f1 | 2014-11-19 18:11:00 -0800 | [diff] [blame] | 32 | #include <uapi/linux/thermal.h> |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 33 | |
Durgadoss R | 2306408 | 2012-09-18 11:04:52 +0530 | [diff] [blame] | 34 | #define THERMAL_TRIPS_NONE -1 |
| 35 | #define THERMAL_MAX_TRIPS 12 |
Durgadoss R | 2306408 | 2012-09-18 11:04:52 +0530 | [diff] [blame] | 36 | |
Zhang Rui | 57df810 | 2013-02-08 14:52:06 +0800 | [diff] [blame] | 37 | /* invalid cooling state */ |
| 38 | #define THERMAL_CSTATE_INVALID -1UL |
| 39 | |
Durgadoss R | 2306408 | 2012-09-18 11:04:52 +0530 | [diff] [blame] | 40 | /* No upper/lower limit requirement */ |
Punit Agrawal | a940cb3 | 2014-12-09 12:22:01 +0000 | [diff] [blame] | 41 | #define THERMAL_NO_LIMIT ((u32)~0) |
Durgadoss R | 2306408 | 2012-09-18 11:04:52 +0530 | [diff] [blame] | 42 | |
Ram Chandrasekar | 2a1abd1 | 2017-06-12 12:52:08 -0600 | [diff] [blame] | 43 | /* upper limit requirement */ |
| 44 | #define THERMAL_MAX_LIMIT (THERMAL_NO_LIMIT - 1) |
| 45 | |
Kapileshwar Singh | 6cd9e9f | 2015-02-18 16:04:21 +0000 | [diff] [blame] | 46 | /* Default weight of a bound cooling device */ |
| 47 | #define THERMAL_WEIGHT_DEFAULT 0 |
| 48 | |
Ram Chandrasekar | 2f2b746 | 2017-03-11 19:35:11 -0700 | [diff] [blame] | 49 | /* Max sensors that can be used for a single virtual thermalzone */ |
Manaf Meethalavalappu Pallikunhi | 4291fee | 2018-01-02 17:01:23 +0530 | [diff] [blame] | 50 | #define THERMAL_MAX_VIRT_SENSORS 10 |
Ram Chandrasekar | 2f2b746 | 2017-03-11 19:35:11 -0700 | [diff] [blame] | 51 | |
Zhang Rui | bb431ba | 2015-10-30 16:31:47 +0800 | [diff] [blame] | 52 | /* use value, which < 0K, to indicate an invalid/uninitialized temperature */ |
| 53 | #define THERMAL_TEMP_INVALID -274000 |
| 54 | |
Ram Chandrasekar | 37c816d | 2017-08-25 12:34:02 -0600 | [diff] [blame] | 55 | /* |
| 56 | * use a high value for low temp tracking zone, |
| 57 | * to indicate an invalid/uninitialized temperature |
| 58 | */ |
| 59 | #define THERMAL_TEMP_INVALID_LOW 274000 |
| 60 | |
Durgadoss R | 2306408 | 2012-09-18 11:04:52 +0530 | [diff] [blame] | 61 | /* Unit conversion macros */ |
Rasmus Villemoes | e866a2e | 2015-10-01 23:45:31 +0200 | [diff] [blame] | 62 | #define DECI_KELVIN_TO_CELSIUS(t) ({ \ |
| 63 | long _t = (t); \ |
| 64 | ((_t-2732 >= 0) ? (_t-2732+5)/10 : (_t-2732-5)/10); \ |
| 65 | }) |
| 66 | #define CELSIUS_TO_DECI_KELVIN(t) ((t)*10+2732) |
Aaron Lu | 7b83fd9 | 2014-03-25 10:40:09 +0800 | [diff] [blame] | 67 | #define DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, off) (((t) - (off)) * 100) |
| 68 | #define DECI_KELVIN_TO_MILLICELSIUS(t) DECI_KELVIN_TO_MILLICELSIUS_WITH_OFFSET(t, 2732) |
Aaron Lu | 77e337c | 2014-09-03 15:13:02 +0800 | [diff] [blame] | 69 | #define MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, off) (((t) / 100) + (off)) |
| 70 | #define MILLICELSIUS_TO_DECI_KELVIN(t) MILLICELSIUS_TO_DECI_KELVIN_WITH_OFFSET(t, 2732) |
Durgadoss R | 2306408 | 2012-09-18 11:04:52 +0530 | [diff] [blame] | 71 | |
Zhang Rui | 1f53ef1 | 2012-12-12 15:31:37 +0800 | [diff] [blame] | 72 | /* Default Thermal Governor */ |
| 73 | #if defined(CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE) |
| 74 | #define DEFAULT_THERMAL_GOVERNOR "step_wise" |
| 75 | #elif defined(CONFIG_THERMAL_DEFAULT_GOV_FAIR_SHARE) |
| 76 | #define DEFAULT_THERMAL_GOVERNOR "fair_share" |
| 77 | #elif defined(CONFIG_THERMAL_DEFAULT_GOV_USER_SPACE) |
| 78 | #define DEFAULT_THERMAL_GOVERNOR "user_space" |
Javi Merino | 6b775e8 | 2015-03-02 17:17:19 +0000 | [diff] [blame] | 79 | #elif defined(CONFIG_THERMAL_DEFAULT_GOV_POWER_ALLOCATOR) |
| 80 | #define DEFAULT_THERMAL_GOVERNOR "power_allocator" |
Zhang Rui | 1f53ef1 | 2012-12-12 15:31:37 +0800 | [diff] [blame] | 81 | #endif |
Durgadoss R | a4a1548 | 2012-09-18 11:04:57 +0530 | [diff] [blame] | 82 | |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 83 | struct thermal_zone_device; |
| 84 | struct thermal_cooling_device; |
Javi Merino | 35b11d2 | 2015-02-26 19:00:28 +0000 | [diff] [blame] | 85 | struct thermal_instance; |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 86 | |
Matthew Garrett | 6503e5d | 2008-11-27 17:48:13 +0000 | [diff] [blame] | 87 | enum thermal_device_mode { |
| 88 | THERMAL_DEVICE_DISABLED = 0, |
| 89 | THERMAL_DEVICE_ENABLED, |
| 90 | }; |
| 91 | |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 92 | enum thermal_trip_activation_mode { |
| 93 | THERMAL_TRIP_ACTIVATION_DISABLED = 0, |
| 94 | THERMAL_TRIP_ACTIVATION_ENABLED, |
| 95 | }; |
| 96 | |
Matthew Garrett | 6503e5d | 2008-11-27 17:48:13 +0000 | [diff] [blame] | 97 | enum thermal_trip_type { |
| 98 | THERMAL_TRIP_ACTIVE = 0, |
| 99 | THERMAL_TRIP_PASSIVE, |
| 100 | THERMAL_TRIP_HOT, |
| 101 | THERMAL_TRIP_CRITICAL, |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 102 | THERMAL_TRIP_CONFIGURABLE_HI, |
| 103 | THERMAL_TRIP_CONFIGURABLE_LOW, |
| 104 | THERMAL_TRIP_CRITICAL_LOW, |
Matthew Garrett | 6503e5d | 2008-11-27 17:48:13 +0000 | [diff] [blame] | 105 | }; |
| 106 | |
Zhang Rui | 601f3d4 | 2012-06-27 09:54:33 +0800 | [diff] [blame] | 107 | enum thermal_trend { |
| 108 | THERMAL_TREND_STABLE, /* temperature is stable */ |
| 109 | THERMAL_TREND_RAISING, /* temperature is raising */ |
| 110 | THERMAL_TREND_DROPPING, /* temperature is dropping */ |
Zhang Rui | d069015e | 2012-11-19 15:33:51 +0800 | [diff] [blame] | 111 | THERMAL_TREND_RAISE_FULL, /* apply highest cooling action */ |
| 112 | THERMAL_TREND_DROP_FULL, /* apply lowest cooling action */ |
Zhang Rui | 601f3d4 | 2012-06-27 09:54:33 +0800 | [diff] [blame] | 113 | }; |
| 114 | |
Srinivas Pandruvada | 0e70f46 | 2016-08-26 16:21:16 -0700 | [diff] [blame] | 115 | /* Thermal notification reason */ |
| 116 | enum thermal_notify_event { |
| 117 | THERMAL_EVENT_UNSPECIFIED, /* Unspecified event */ |
| 118 | THERMAL_EVENT_TEMP_SAMPLE, /* New Temperature sample */ |
| 119 | THERMAL_TRIP_VIOLATED, /* TRIP Point violation */ |
| 120 | THERMAL_TRIP_CHANGED, /* TRIP Point temperature changed */ |
| 121 | THERMAL_DEVICE_DOWN, /* Thermal device is down */ |
| 122 | THERMAL_DEVICE_UP, /* Thermal device is up after a down event */ |
| 123 | THERMAL_DEVICE_POWER_CAPABILITY_CHANGED, /* power capability changed */ |
| 124 | }; |
| 125 | |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 126 | struct thermal_zone_device_ops { |
| 127 | int (*bind) (struct thermal_zone_device *, |
| 128 | struct thermal_cooling_device *); |
| 129 | int (*unbind) (struct thermal_zone_device *, |
| 130 | struct thermal_cooling_device *); |
Sascha Hauer | 17e8351 | 2015-07-24 08:12:54 +0200 | [diff] [blame] | 131 | int (*get_temp) (struct thermal_zone_device *, int *); |
Sascha Hauer | 060c034 | 2016-06-22 16:42:01 +0800 | [diff] [blame] | 132 | int (*set_trips) (struct thermal_zone_device *, int, int); |
Matthew Garrett | 6503e5d | 2008-11-27 17:48:13 +0000 | [diff] [blame] | 133 | int (*get_mode) (struct thermal_zone_device *, |
| 134 | enum thermal_device_mode *); |
| 135 | int (*set_mode) (struct thermal_zone_device *, |
| 136 | enum thermal_device_mode); |
| 137 | int (*get_trip_type) (struct thermal_zone_device *, int, |
| 138 | enum thermal_trip_type *); |
Sascha Hauer | 17e8351 | 2015-07-24 08:12:54 +0200 | [diff] [blame] | 139 | int (*get_trip_temp) (struct thermal_zone_device *, int, int *); |
| 140 | int (*set_trip_temp) (struct thermal_zone_device *, int, int); |
| 141 | int (*get_trip_hyst) (struct thermal_zone_device *, int, int *); |
| 142 | int (*set_trip_hyst) (struct thermal_zone_device *, int, int); |
| 143 | int (*get_crit_temp) (struct thermal_zone_device *, int *); |
| 144 | int (*set_emul_temp) (struct thermal_zone_device *, int); |
Siddartha Mohanadoss | 45a944b | 2017-01-23 19:46:10 -0800 | [diff] [blame] | 145 | int (*activate_trip_type)(struct thermal_zone_device *, int, |
| 146 | enum thermal_trip_activation_mode); |
Zhang Rui | 601f3d4 | 2012-06-27 09:54:33 +0800 | [diff] [blame] | 147 | int (*get_trend) (struct thermal_zone_device *, int, |
| 148 | enum thermal_trend *); |
Matthew Garrett | b1569e9 | 2008-12-03 17:55:32 +0000 | [diff] [blame] | 149 | int (*notify) (struct thermal_zone_device *, int, |
| 150 | enum thermal_trip_type); |
Manaf Meethalavalappu Pallikunhi | 11175e3 | 2019-02-14 18:03:00 +0530 | [diff] [blame] | 151 | bool (*is_wakeable)(struct thermal_zone_device *); |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 152 | }; |
| 153 | |
| 154 | struct thermal_cooling_device_ops { |
Matthew Garrett | 6503e5d | 2008-11-27 17:48:13 +0000 | [diff] [blame] | 155 | int (*get_max_state) (struct thermal_cooling_device *, unsigned long *); |
| 156 | int (*get_cur_state) (struct thermal_cooling_device *, unsigned long *); |
| 157 | int (*set_cur_state) (struct thermal_cooling_device *, unsigned long); |
Ram Chandrasekar | bd15570 | 2017-03-17 16:42:15 -0600 | [diff] [blame] | 158 | int (*set_min_state)(struct thermal_cooling_device *, unsigned long); |
| 159 | int (*get_min_state)(struct thermal_cooling_device *, unsigned long *); |
Javi Merino | 35b11d2 | 2015-02-26 19:00:28 +0000 | [diff] [blame] | 160 | int (*get_requested_power)(struct thermal_cooling_device *, |
| 161 | struct thermal_zone_device *, u32 *); |
| 162 | int (*state2power)(struct thermal_cooling_device *, |
| 163 | struct thermal_zone_device *, unsigned long, u32 *); |
| 164 | int (*power2state)(struct thermal_cooling_device *, |
| 165 | struct thermal_zone_device *, u32, unsigned long *); |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 166 | }; |
| 167 | |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 168 | struct thermal_cooling_device { |
| 169 | int id; |
| 170 | char type[THERMAL_NAME_LENGTH]; |
| 171 | struct device device; |
Eduardo Valentin | 4e5e470 | 2013-07-03 15:35:39 -0400 | [diff] [blame] | 172 | struct device_node *np; |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 173 | void *devdata; |
Alan Cox | 5b275ce | 2010-11-11 15:27:29 +0000 | [diff] [blame] | 174 | const struct thermal_cooling_device_ops *ops; |
Zhang Rui | ce119f8 | 2012-06-27 14:13:04 +0800 | [diff] [blame] | 175 | bool updated; /* true if the cooling device does not need update */ |
Zhang Rui | f4a821c | 2012-07-24 16:56:21 +0800 | [diff] [blame] | 176 | struct mutex lock; /* protect thermal_instances list */ |
Zhang Rui | b5e4ae6 | 2012-06-27 14:11:52 +0800 | [diff] [blame] | 177 | struct list_head thermal_instances; |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 178 | struct list_head node; |
Ram Chandrasekar | 5ab1c08 | 2016-09-20 17:09:28 -0600 | [diff] [blame] | 179 | unsigned long sysfs_cur_state_req; |
| 180 | unsigned long sysfs_min_state_req; |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 181 | }; |
| 182 | |
Durgadoss R | c56f5c0 | 2012-07-25 10:10:58 +0800 | [diff] [blame] | 183 | struct thermal_attr { |
| 184 | struct device_attribute attr; |
| 185 | char name[THERMAL_NAME_LENGTH]; |
| 186 | }; |
| 187 | |
Javi Merino | c708a98 | 2014-06-25 11:00:12 +0100 | [diff] [blame] | 188 | /** |
| 189 | * struct thermal_zone_device - structure for a thermal zone |
| 190 | * @id: unique id number for each thermal zone |
| 191 | * @type: the thermal zone device type |
| 192 | * @device: &struct device for this thermal zone |
| 193 | * @trip_temp_attrs: attributes for trip points for sysfs: trip temperature |
| 194 | * @trip_type_attrs: attributes for trip points for sysfs: trip type |
| 195 | * @trip_hyst_attrs: attributes for trip points for sysfs: trip hysteresis |
| 196 | * @devdata: private pointer for device private data |
| 197 | * @trips: number of trip points the thermal zone supports |
Zhang Rui | 81ad427 | 2016-03-18 10:03:24 +0800 | [diff] [blame] | 198 | * @trips_disabled; bitmap for disabled trips |
Javi Merino | c708a98 | 2014-06-25 11:00:12 +0100 | [diff] [blame] | 199 | * @passive_delay: number of milliseconds to wait between polls when |
Javi Merino | 6b775e8 | 2015-03-02 17:17:19 +0000 | [diff] [blame] | 200 | * performing passive cooling. |
Javi Merino | c708a98 | 2014-06-25 11:00:12 +0100 | [diff] [blame] | 201 | * @polling_delay: number of milliseconds to wait between polls when |
| 202 | * checking whether trip points have been crossed (0 for |
| 203 | * interrupt driven systems) |
| 204 | * @temperature: current temperature. This is only for core code, |
| 205 | * drivers should use thermal_zone_get_temp() to get the |
| 206 | * current temperature |
| 207 | * @last_temperature: previous temperature read |
| 208 | * @emul_temperature: emulated temperature when using CONFIG_THERMAL_EMULATION |
| 209 | * @passive: 1 if you've crossed a passive trip point, 0 otherwise. |
Sascha Hauer | 060c034 | 2016-06-22 16:42:01 +0800 | [diff] [blame] | 210 | * @prev_low_trip: the low current temperature if you've crossed a passive |
| 211 | trip point. |
| 212 | * @prev_high_trip: the above current temperature if you've crossed a |
| 213 | passive trip point. |
Javi Merino | c708a98 | 2014-06-25 11:00:12 +0100 | [diff] [blame] | 214 | * @forced_passive: If > 0, temperature at which to switch on all ACPI |
| 215 | * processor cooling devices. Currently only used by the |
| 216 | * step-wise governor. |
Chen Yu | 4511f71 | 2015-10-30 16:32:10 +0800 | [diff] [blame] | 217 | * @need_update: if equals 1, thermal_zone_device_update needs to be invoked. |
Javi Merino | c708a98 | 2014-06-25 11:00:12 +0100 | [diff] [blame] | 218 | * @ops: operations this &thermal_zone_device supports |
| 219 | * @tzp: thermal zone parameters |
| 220 | * @governor: pointer to the governor for this thermal zone |
Javi Merino | e33df1d | 2015-02-26 19:00:27 +0000 | [diff] [blame] | 221 | * @governor_data: private pointer for governor data |
Javi Merino | c708a98 | 2014-06-25 11:00:12 +0100 | [diff] [blame] | 222 | * @thermal_instances: list of &struct thermal_instance of this thermal zone |
| 223 | * @idr: &struct idr to generate unique id for this zone's cooling |
| 224 | * devices |
| 225 | * @lock: lock to protect thermal_instances list |
| 226 | * @node: node in thermal_tz_list (in thermal_core.c) |
| 227 | * @poll_queue: delayed work for polling |
Srinivas Pandruvada | 0e70f46 | 2016-08-26 16:21:16 -0700 | [diff] [blame] | 228 | * @notify_event: Last notification event |
Javi Merino | c708a98 | 2014-06-25 11:00:12 +0100 | [diff] [blame] | 229 | */ |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 230 | struct thermal_zone_device { |
| 231 | int id; |
| 232 | char type[THERMAL_NAME_LENGTH]; |
| 233 | struct device device; |
Durgadoss R | c56f5c0 | 2012-07-25 10:10:58 +0800 | [diff] [blame] | 234 | struct thermal_attr *trip_temp_attrs; |
| 235 | struct thermal_attr *trip_type_attrs; |
Durgadoss R | 27365a6 | 2012-07-25 10:10:59 +0800 | [diff] [blame] | 236 | struct thermal_attr *trip_hyst_attrs; |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 237 | void *devdata; |
| 238 | int trips; |
Zhang Rui | 81ad427 | 2016-03-18 10:03:24 +0800 | [diff] [blame] | 239 | unsigned long trips_disabled; /* bitmap for disabled trips */ |
Matthew Garrett | b1569e9 | 2008-12-03 17:55:32 +0000 | [diff] [blame] | 240 | int passive_delay; |
| 241 | int polling_delay; |
Zhang Rui | 601f3d4 | 2012-06-27 09:54:33 +0800 | [diff] [blame] | 242 | int temperature; |
Matthew Garrett | b1569e9 | 2008-12-03 17:55:32 +0000 | [diff] [blame] | 243 | int last_temperature; |
Amit Daniel Kachhap | e6e238c | 2013-02-04 00:30:15 +0000 | [diff] [blame] | 244 | int emul_temperature; |
Zhang Rui | 908b9fb | 2012-06-27 14:14:05 +0800 | [diff] [blame] | 245 | int passive; |
Sascha Hauer | 060c034 | 2016-06-22 16:42:01 +0800 | [diff] [blame] | 246 | int prev_low_trip; |
| 247 | int prev_high_trip; |
Matthew Garrett | 03a971a | 2008-12-03 18:00:38 +0000 | [diff] [blame] | 248 | unsigned int forced_passive; |
Chen Yu | 4511f71 | 2015-10-30 16:32:10 +0800 | [diff] [blame] | 249 | atomic_t need_update; |
Eduardo Valentin | 4e5e470 | 2013-07-03 15:35:39 -0400 | [diff] [blame] | 250 | struct thermal_zone_device_ops *ops; |
Javi Merino | 6b775e8 | 2015-03-02 17:17:19 +0000 | [diff] [blame] | 251 | struct thermal_zone_params *tzp; |
Durgadoss R | a4a1548 | 2012-09-18 11:04:57 +0530 | [diff] [blame] | 252 | struct thermal_governor *governor; |
Javi Merino | e33df1d | 2015-02-26 19:00:27 +0000 | [diff] [blame] | 253 | void *governor_data; |
Zhang Rui | 2d37413 | 2012-06-27 10:09:00 +0800 | [diff] [blame] | 254 | struct list_head thermal_instances; |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 255 | struct idr idr; |
Javi Merino | c708a98 | 2014-06-25 11:00:12 +0100 | [diff] [blame] | 256 | struct mutex lock; |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 257 | struct list_head node; |
Matthew Garrett | b1569e9 | 2008-12-03 17:55:32 +0000 | [diff] [blame] | 258 | struct delayed_work poll_queue; |
Srinivas Pandruvada | 0e70f46 | 2016-08-26 16:21:16 -0700 | [diff] [blame] | 259 | enum thermal_notify_event notify_event; |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 260 | }; |
R.Durgadoss | 4cb1872 | 2010-10-27 03:33:29 +0530 | [diff] [blame] | 261 | |
Javi Merino | c708a98 | 2014-06-25 11:00:12 +0100 | [diff] [blame] | 262 | /** |
| 263 | * struct thermal_governor - structure that holds thermal governor information |
| 264 | * @name: name of the governor |
Javi Merino | e33df1d | 2015-02-26 19:00:27 +0000 | [diff] [blame] | 265 | * @bind_to_tz: callback called when binding to a thermal zone. If it |
| 266 | * returns 0, the governor is bound to the thermal zone, |
| 267 | * otherwise it fails. |
| 268 | * @unbind_from_tz: callback called when a governor is unbound from a |
| 269 | * thermal zone. |
Javi Merino | c708a98 | 2014-06-25 11:00:12 +0100 | [diff] [blame] | 270 | * @throttle: callback called for every trip point even if temperature is |
| 271 | * below the trip point temperature |
| 272 | * @governor_list: node in thermal_governor_list (in thermal_core.c) |
| 273 | */ |
Durgadoss R | a4a1548 | 2012-09-18 11:04:57 +0530 | [diff] [blame] | 274 | struct thermal_governor { |
| 275 | char name[THERMAL_NAME_LENGTH]; |
Javi Merino | e33df1d | 2015-02-26 19:00:27 +0000 | [diff] [blame] | 276 | int (*bind_to_tz)(struct thermal_zone_device *tz); |
| 277 | void (*unbind_from_tz)(struct thermal_zone_device *tz); |
Durgadoss R | a4a1548 | 2012-09-18 11:04:57 +0530 | [diff] [blame] | 278 | int (*throttle)(struct thermal_zone_device *tz, int trip); |
| 279 | struct list_head governor_list; |
Ram Chandrasekar | bd15570 | 2017-03-17 16:42:15 -0600 | [diff] [blame] | 280 | int min_state_throttle; |
Durgadoss R | a4a1548 | 2012-09-18 11:04:57 +0530 | [diff] [blame] | 281 | }; |
| 282 | |
Durgadoss R | ef87394 | 2012-09-18 11:04:55 +0530 | [diff] [blame] | 283 | /* Structure that holds binding parameters for a zone */ |
| 284 | struct thermal_bind_params { |
| 285 | struct thermal_cooling_device *cdev; |
| 286 | |
| 287 | /* |
| 288 | * This is a measure of 'how effectively these devices can |
Javi Merino | bcdcbbc | 2015-02-18 16:04:25 +0000 | [diff] [blame] | 289 | * cool 'this' thermal zone. It shall be determined by |
| 290 | * platform characterization. This value is relative to the |
| 291 | * rest of the weights so a cooling device whose weight is |
| 292 | * double that of another cooling device is twice as |
| 293 | * effective. See Documentation/thermal/sysfs-api.txt for more |
| 294 | * information. |
Durgadoss R | ef87394 | 2012-09-18 11:04:55 +0530 | [diff] [blame] | 295 | */ |
| 296 | int weight; |
| 297 | |
| 298 | /* |
| 299 | * This is a bit mask that gives the binding relation between this |
| 300 | * thermal zone and cdev, for a particular trip point. |
| 301 | * See Documentation/thermal/sysfs-api.txt for more information. |
| 302 | */ |
| 303 | int trip_mask; |
Eduardo Valentin | a8892d83 | 2013-07-16 15:26:28 -0400 | [diff] [blame] | 304 | |
| 305 | /* |
| 306 | * This is an array of cooling state limits. Must have exactly |
| 307 | * 2 * thermal_zone.number_of_trip_points. It is an array consisting |
| 308 | * of tuples <lower-state upper-state> of state limits. Each trip |
| 309 | * will be associated with one state limit tuple when binding. |
| 310 | * A NULL pointer means <THERMAL_NO_LIMITS THERMAL_NO_LIMITS> |
| 311 | * on all trips. |
| 312 | */ |
| 313 | unsigned long *binding_limits; |
Durgadoss R | ef87394 | 2012-09-18 11:04:55 +0530 | [diff] [blame] | 314 | int (*match) (struct thermal_zone_device *tz, |
| 315 | struct thermal_cooling_device *cdev); |
| 316 | }; |
| 317 | |
| 318 | /* Structure to define Thermal Zone parameters */ |
| 319 | struct thermal_zone_params { |
Durgadoss R | a4a1548 | 2012-09-18 11:04:57 +0530 | [diff] [blame] | 320 | char governor_name[THERMAL_NAME_LENGTH]; |
Eduardo Valentin | ccba4ff | 2013-08-15 11:34:17 -0400 | [diff] [blame] | 321 | |
| 322 | /* |
| 323 | * a boolean to indicate if the thermal to hwmon sysfs interface |
| 324 | * is required. when no_hwmon == false, a hwmon sysfs interface |
| 325 | * will be created. when no_hwmon == true, nothing will be done |
| 326 | */ |
| 327 | bool no_hwmon; |
| 328 | |
Durgadoss R | ef87394 | 2012-09-18 11:04:55 +0530 | [diff] [blame] | 329 | int num_tbps; /* Number of tbp entries */ |
| 330 | struct thermal_bind_params *tbp; |
Javi Merino | 6b775e8 | 2015-03-02 17:17:19 +0000 | [diff] [blame] | 331 | |
| 332 | /* |
| 333 | * Sustainable power (heat) that this thermal zone can dissipate in |
| 334 | * mW |
| 335 | */ |
| 336 | u32 sustainable_power; |
| 337 | |
| 338 | /* |
| 339 | * Proportional parameter of the PID controller when |
| 340 | * overshooting (i.e., when temperature is below the target) |
| 341 | */ |
| 342 | s32 k_po; |
| 343 | |
| 344 | /* |
| 345 | * Proportional parameter of the PID controller when |
| 346 | * undershooting |
| 347 | */ |
| 348 | s32 k_pu; |
| 349 | |
| 350 | /* Integral parameter of the PID controller */ |
| 351 | s32 k_i; |
| 352 | |
| 353 | /* Derivative parameter of the PID controller */ |
| 354 | s32 k_d; |
| 355 | |
| 356 | /* threshold below which the error is no longer accumulated */ |
| 357 | s32 integral_cutoff; |
Eduardo Valentin | 9d0be7f | 2015-05-11 19:34:23 -0700 | [diff] [blame] | 358 | |
| 359 | /* |
| 360 | * @slope: slope of a linear temperature adjustment curve. |
| 361 | * Used by thermal zone drivers. |
| 362 | */ |
| 363 | int slope; |
| 364 | /* |
| 365 | * @offset: offset of a linear temperature adjustment curve. |
| 366 | * Used by thermal zone drivers (default 0). |
| 367 | */ |
| 368 | int offset; |
Lina Iyer | 159f67d | 2016-07-27 11:34:46 -0600 | [diff] [blame] | 369 | |
| 370 | /* |
| 371 | * @tracks_low: Indicates that the thermal zone params are for |
| 372 | * temperatures falling below the thresholds. |
| 373 | */ |
| 374 | bool tracks_low; |
Durgadoss R | ef87394 | 2012-09-18 11:04:55 +0530 | [diff] [blame] | 375 | }; |
| 376 | |
R.Durgadoss | 4cb1872 | 2010-10-27 03:33:29 +0530 | [diff] [blame] | 377 | struct thermal_genl_event { |
| 378 | u32 orig; |
| 379 | enum events event; |
| 380 | }; |
R.Durgadoss | 4cb1872 | 2010-10-27 03:33:29 +0530 | [diff] [blame] | 381 | |
Eduardo Valentin | 2251aef | 2014-11-07 21:24:39 -0400 | [diff] [blame] | 382 | /** |
| 383 | * struct thermal_zone_of_device_ops - scallbacks for handling DT based zones |
| 384 | * |
| 385 | * Mandatory: |
| 386 | * @get_temp: a pointer to a function that reads the sensor temperature. |
| 387 | * |
| 388 | * Optional: |
| 389 | * @get_trend: a pointer to a function that reads the sensor temperature trend. |
Sascha Hauer | 826386e | 2016-06-22 16:42:02 +0800 | [diff] [blame] | 390 | * @set_trips: a pointer to a function that sets a temperature window. When |
| 391 | * this window is left the driver must inform the thermal core via |
| 392 | * thermal_zone_device_update. |
Lukasz Majewski | 184a4bf | 2014-12-08 18:04:21 +0100 | [diff] [blame] | 393 | * @set_emul_temp: a pointer to a function that sets sensor emulated |
| 394 | * temperature. |
Caesar Wang | 5a5e78c | 2016-05-18 23:01:39 +0800 | [diff] [blame] | 395 | * @set_trip_temp: a pointer to a function that sets the trip temperature on |
| 396 | * hardware. |
Ram Chandrasekar | 32e8bfd | 2018-02-06 17:12:04 -0700 | [diff] [blame] | 397 | * @get_trip_temp: a pointer to a function that gets the trip temperature on |
| 398 | * hardware. |
Eduardo Valentin | 2251aef | 2014-11-07 21:24:39 -0400 | [diff] [blame] | 399 | */ |
| 400 | struct thermal_zone_of_device_ops { |
Sascha Hauer | 17e8351 | 2015-07-24 08:12:54 +0200 | [diff] [blame] | 401 | int (*get_temp)(void *, int *); |
Sascha Hauer | e78eaf4 | 2016-06-22 16:42:03 +0800 | [diff] [blame] | 402 | int (*get_trend)(void *, int, enum thermal_trend *); |
Sascha Hauer | 826386e | 2016-06-22 16:42:02 +0800 | [diff] [blame] | 403 | int (*set_trips)(void *, int, int); |
Sascha Hauer | 17e8351 | 2015-07-24 08:12:54 +0200 | [diff] [blame] | 404 | int (*set_emul_temp)(void *, int); |
Wei Ni | c350952 | 2016-03-29 18:29:17 +0800 | [diff] [blame] | 405 | int (*set_trip_temp)(void *, int, int); |
Ram Chandrasekar | 32e8bfd | 2018-02-06 17:12:04 -0700 | [diff] [blame] | 406 | int (*get_trip_temp)(void *, int, int *); |
Eduardo Valentin | 2251aef | 2014-11-07 21:24:39 -0400 | [diff] [blame] | 407 | }; |
| 408 | |
Lukasz Majewski | ad9914a | 2014-12-08 18:04:19 +0100 | [diff] [blame] | 409 | /** |
| 410 | * struct thermal_trip - representation of a point in temperature domain |
| 411 | * @np: pointer to struct device_node that this trip point was created from |
| 412 | * @temperature: temperature value in miliCelsius |
| 413 | * @hysteresis: relative hysteresis in miliCelsius |
| 414 | * @type: trip point type |
| 415 | */ |
| 416 | |
| 417 | struct thermal_trip { |
| 418 | struct device_node *np; |
Wei Ni | 1d0fd42 | 2016-03-03 17:33:46 +0800 | [diff] [blame] | 419 | int temperature; |
| 420 | int hysteresis; |
Lukasz Majewski | ad9914a | 2014-12-08 18:04:19 +0100 | [diff] [blame] | 421 | enum thermal_trip_type type; |
| 422 | }; |
| 423 | |
Ram Chandrasekar | 2f2b746 | 2017-03-11 19:35:11 -0700 | [diff] [blame] | 424 | /* Different aggregation logic supported for virtual sensors */ |
| 425 | enum aggregation_logic { |
| 426 | VIRT_WEIGHTED_AVG, |
| 427 | VIRT_MAXIMUM, |
| 428 | VIRT_MINIMUM, |
| 429 | VIRT_AGGREGATION_NR, |
| 430 | }; |
| 431 | |
| 432 | /* |
| 433 | * struct virtual_sensor_data - Data structure used to provide |
| 434 | * information about the virtual zone. |
| 435 | * @virt_zone_name - Virtual thermal zone name |
| 436 | * @num_sensors - Number of sensors this virtual zone uses to compute |
| 437 | * temperature |
| 438 | * @sensor_names - Array of sensor names |
| 439 | * @logic - Temperature aggregation logic to be used |
| 440 | * @coefficients - Coefficients to be used for weighted average logic |
| 441 | * @coefficient_ct - number of coefficients provided as input |
| 442 | * @avg_offset - offset value to be used for the weighted aggregation logic |
| 443 | * @avg_denominator - denominator value to be used for the weighted aggregation |
| 444 | * logic |
| 445 | */ |
| 446 | struct virtual_sensor_data { |
| 447 | int num_sensors; |
| 448 | char virt_zone_name[THERMAL_NAME_LENGTH]; |
| 449 | char *sensor_names[THERMAL_MAX_VIRT_SENSORS]; |
| 450 | enum aggregation_logic logic; |
| 451 | int coefficients[THERMAL_MAX_VIRT_SENSORS]; |
| 452 | int coefficient_ct; |
| 453 | int avg_offset; |
| 454 | int avg_denominator; |
| 455 | }; |
| 456 | |
Durgadoss R | 2306408 | 2012-09-18 11:04:52 +0530 | [diff] [blame] | 457 | /* Function declarations */ |
Eduardo Valentin | 4e5e470 | 2013-07-03 15:35:39 -0400 | [diff] [blame] | 458 | #ifdef CONFIG_THERMAL_OF |
| 459 | struct thermal_zone_device * |
Eduardo Valentin | 2251aef | 2014-11-07 21:24:39 -0400 | [diff] [blame] | 460 | thermal_zone_of_sensor_register(struct device *dev, int id, void *data, |
| 461 | const struct thermal_zone_of_device_ops *ops); |
Eduardo Valentin | 4e5e470 | 2013-07-03 15:35:39 -0400 | [diff] [blame] | 462 | void thermal_zone_of_sensor_unregister(struct device *dev, |
| 463 | struct thermal_zone_device *tz); |
Laxman Dewangan | e498b49 | 2016-03-09 18:40:06 +0530 | [diff] [blame] | 464 | struct thermal_zone_device *devm_thermal_zone_of_sensor_register( |
| 465 | struct device *dev, int id, void *data, |
| 466 | const struct thermal_zone_of_device_ops *ops); |
| 467 | void devm_thermal_zone_of_sensor_unregister(struct device *dev, |
| 468 | struct thermal_zone_device *tz); |
Ram Chandrasekar | 2f2b746 | 2017-03-11 19:35:11 -0700 | [diff] [blame] | 469 | struct thermal_zone_device *devm_thermal_of_virtual_sensor_register( |
| 470 | struct device *dev, |
| 471 | const struct virtual_sensor_data *sensor_data); |
Eduardo Valentin | 4e5e470 | 2013-07-03 15:35:39 -0400 | [diff] [blame] | 472 | #else |
| 473 | static inline struct thermal_zone_device * |
Eduardo Valentin | 2251aef | 2014-11-07 21:24:39 -0400 | [diff] [blame] | 474 | thermal_zone_of_sensor_register(struct device *dev, int id, void *data, |
| 475 | const struct thermal_zone_of_device_ops *ops) |
Eduardo Valentin | 4e5e470 | 2013-07-03 15:35:39 -0400 | [diff] [blame] | 476 | { |
Punit Agrawal | cd33dc9 | 2015-09-08 14:51:12 +0100 | [diff] [blame] | 477 | return ERR_PTR(-ENODEV); |
Eduardo Valentin | 4e5e470 | 2013-07-03 15:35:39 -0400 | [diff] [blame] | 478 | } |
| 479 | |
| 480 | static inline |
| 481 | void thermal_zone_of_sensor_unregister(struct device *dev, |
| 482 | struct thermal_zone_device *tz) |
| 483 | { |
| 484 | } |
| 485 | |
Laxman Dewangan | e498b49 | 2016-03-09 18:40:06 +0530 | [diff] [blame] | 486 | static inline struct thermal_zone_device *devm_thermal_zone_of_sensor_register( |
| 487 | struct device *dev, int id, void *data, |
| 488 | const struct thermal_zone_of_device_ops *ops) |
| 489 | { |
| 490 | return ERR_PTR(-ENODEV); |
| 491 | } |
| 492 | |
| 493 | static inline |
| 494 | void devm_thermal_zone_of_sensor_unregister(struct device *dev, |
| 495 | struct thermal_zone_device *tz) |
| 496 | { |
| 497 | } |
| 498 | |
Ram Chandrasekar | 2f2b746 | 2017-03-11 19:35:11 -0700 | [diff] [blame] | 499 | static inline |
| 500 | struct thermal_zone_device *devm_thermal_of_virtual_sensor_register( |
| 501 | struct device *dev, |
| 502 | const struct virtual_sensor_data *sensor_data) |
| 503 | { |
| 504 | return ERR_PTR(-ENODEV); |
| 505 | } |
| 506 | |
Eduardo Valentin | 4e5e470 | 2013-07-03 15:35:39 -0400 | [diff] [blame] | 507 | #endif |
Nishanth Menon | 12ca718 | 2015-02-13 19:28:02 -0600 | [diff] [blame] | 508 | |
| 509 | #if IS_ENABLED(CONFIG_THERMAL) |
Javi Merino | 35b11d2 | 2015-02-26 19:00:28 +0000 | [diff] [blame] | 510 | static inline bool cdev_is_power_actor(struct thermal_cooling_device *cdev) |
| 511 | { |
| 512 | return cdev->ops->get_requested_power && cdev->ops->state2power && |
| 513 | cdev->ops->power2state; |
| 514 | } |
| 515 | |
| 516 | int power_actor_get_max_power(struct thermal_cooling_device *, |
| 517 | struct thermal_zone_device *tz, u32 *max_power); |
Javi Merino | c973c3b | 2015-09-14 14:23:50 +0100 | [diff] [blame] | 518 | int power_actor_get_min_power(struct thermal_cooling_device *, |
| 519 | struct thermal_zone_device *tz, u32 *min_power); |
Javi Merino | 35b11d2 | 2015-02-26 19:00:28 +0000 | [diff] [blame] | 520 | int power_actor_set_power(struct thermal_cooling_device *, |
| 521 | struct thermal_instance *, u32); |
Anton Vorontsov | 4b1bf58 | 2012-07-31 04:39:30 -0700 | [diff] [blame] | 522 | struct thermal_zone_device *thermal_zone_device_register(const char *, int, int, |
Eduardo Valentin | 4e5e470 | 2013-07-03 15:35:39 -0400 | [diff] [blame] | 523 | void *, struct thermal_zone_device_ops *, |
Javi Merino | 6b775e8 | 2015-03-02 17:17:19 +0000 | [diff] [blame] | 524 | struct thermal_zone_params *, int, int); |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 525 | void thermal_zone_device_unregister(struct thermal_zone_device *); |
| 526 | |
| 527 | int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int, |
Zhang Rui | 9d99842 | 2012-06-26 16:35:57 +0800 | [diff] [blame] | 528 | struct thermal_cooling_device *, |
Kapileshwar Singh | 6cd9e9f | 2015-02-18 16:04:21 +0000 | [diff] [blame] | 529 | unsigned long, unsigned long, |
| 530 | unsigned int); |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 531 | int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int, |
| 532 | struct thermal_cooling_device *); |
Srinivas Pandruvada | 0e70f46 | 2016-08-26 16:21:16 -0700 | [diff] [blame] | 533 | void thermal_zone_device_update(struct thermal_zone_device *, |
| 534 | enum thermal_notify_event); |
Ram Chandrasekar | bae93a6 | 2018-11-02 12:23:40 -0600 | [diff] [blame] | 535 | void thermal_zone_device_update_temp(struct thermal_zone_device *tz, |
| 536 | enum thermal_notify_event event, int temp); |
Sascha Hauer | 060c034 | 2016-06-22 16:42:01 +0800 | [diff] [blame] | 537 | void thermal_zone_set_trips(struct thermal_zone_device *); |
Durgadoss R | 2306408 | 2012-09-18 11:04:52 +0530 | [diff] [blame] | 538 | |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 539 | struct thermal_cooling_device *thermal_cooling_device_register(char *, void *, |
Alan Cox | 5b275ce | 2010-11-11 15:27:29 +0000 | [diff] [blame] | 540 | const struct thermal_cooling_device_ops *); |
Eduardo Valentin | a116b5d | 2013-09-26 15:55:01 -0400 | [diff] [blame] | 541 | struct thermal_cooling_device * |
| 542 | thermal_of_cooling_device_register(struct device_node *np, char *, void *, |
| 543 | const struct thermal_cooling_device_ops *); |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 544 | void thermal_cooling_device_unregister(struct thermal_cooling_device *); |
Eduardo Valentin | 63c4d91 | 2013-04-05 12:32:28 +0000 | [diff] [blame] | 545 | struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name); |
Sascha Hauer | 17e8351 | 2015-07-24 08:12:54 +0200 | [diff] [blame] | 546 | int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp); |
Rajendra Nayak | 4a7069a | 2016-05-05 14:21:42 +0530 | [diff] [blame] | 547 | int thermal_zone_get_slope(struct thermal_zone_device *tz); |
| 548 | int thermal_zone_get_offset(struct thermal_zone_device *tz); |
Rafael J. Wysocki | af06216 | 2011-03-01 01:12:19 +0100 | [diff] [blame] | 549 | |
Durgadoss R | 9b4298a | 2012-09-18 11:04:54 +0530 | [diff] [blame] | 550 | int get_tz_trend(struct thermal_zone_device *, int); |
| 551 | struct thermal_instance *get_thermal_instance(struct thermal_zone_device *, |
| 552 | struct thermal_cooling_device *, int); |
Durgadoss R | dc76548 | 2012-09-18 11:05:00 +0530 | [diff] [blame] | 553 | void thermal_cdev_update(struct thermal_cooling_device *); |
Eduardo Valentin | 7b73c99 | 2013-04-23 21:48:14 +0000 | [diff] [blame] | 554 | void thermal_notify_framework(struct thermal_zone_device *, int); |
Nishanth Menon | 12ca718 | 2015-02-13 19:28:02 -0600 | [diff] [blame] | 555 | #else |
Javi Merino | 35b11d2 | 2015-02-26 19:00:28 +0000 | [diff] [blame] | 556 | static inline bool cdev_is_power_actor(struct thermal_cooling_device *cdev) |
| 557 | { return false; } |
| 558 | static inline int power_actor_get_max_power(struct thermal_cooling_device *cdev, |
| 559 | struct thermal_zone_device *tz, u32 *max_power) |
| 560 | { return 0; } |
Javi Merino | c973c3b | 2015-09-14 14:23:50 +0100 | [diff] [blame] | 561 | static inline int power_actor_get_min_power(struct thermal_cooling_device *cdev, |
| 562 | struct thermal_zone_device *tz, |
| 563 | u32 *min_power) |
| 564 | { return -ENODEV; } |
Javi Merino | 35b11d2 | 2015-02-26 19:00:28 +0000 | [diff] [blame] | 565 | static inline int power_actor_set_power(struct thermal_cooling_device *cdev, |
| 566 | struct thermal_instance *tz, u32 power) |
| 567 | { return 0; } |
Nishanth Menon | 12ca718 | 2015-02-13 19:28:02 -0600 | [diff] [blame] | 568 | static inline struct thermal_zone_device *thermal_zone_device_register( |
| 569 | const char *type, int trips, int mask, void *devdata, |
| 570 | struct thermal_zone_device_ops *ops, |
| 571 | const struct thermal_zone_params *tzp, |
| 572 | int passive_delay, int polling_delay) |
| 573 | { return ERR_PTR(-ENODEV); } |
| 574 | static inline void thermal_zone_device_unregister( |
| 575 | struct thermal_zone_device *tz) |
| 576 | { } |
| 577 | static inline int thermal_zone_bind_cooling_device( |
| 578 | struct thermal_zone_device *tz, int trip, |
| 579 | struct thermal_cooling_device *cdev, |
Arnd Bergmann | c86b3de | 2015-11-17 17:48:52 +0100 | [diff] [blame] | 580 | unsigned long upper, unsigned long lower, |
| 581 | unsigned int weight) |
Nishanth Menon | 12ca718 | 2015-02-13 19:28:02 -0600 | [diff] [blame] | 582 | { return -ENODEV; } |
| 583 | static inline int thermal_zone_unbind_cooling_device( |
| 584 | struct thermal_zone_device *tz, int trip, |
| 585 | struct thermal_cooling_device *cdev) |
| 586 | { return -ENODEV; } |
Srinivas Pandruvada | 0e70f46 | 2016-08-26 16:21:16 -0700 | [diff] [blame] | 587 | static inline void thermal_zone_device_update(struct thermal_zone_device *tz, |
| 588 | enum thermal_notify_event event) |
Nishanth Menon | 12ca718 | 2015-02-13 19:28:02 -0600 | [diff] [blame] | 589 | { } |
Ram Chandrasekar | bae93a6 | 2018-11-02 12:23:40 -0600 | [diff] [blame] | 590 | static inline void thermal_zone_device_update_temp( |
| 591 | struct thermal_zone_device *tz, enum thermal_notify_event event, |
| 592 | int temp) |
| 593 | { } |
Sascha Hauer | 060c034 | 2016-06-22 16:42:01 +0800 | [diff] [blame] | 594 | static inline void thermal_zone_set_trips(struct thermal_zone_device *tz) |
| 595 | { } |
Nishanth Menon | 12ca718 | 2015-02-13 19:28:02 -0600 | [diff] [blame] | 596 | static inline struct thermal_cooling_device * |
| 597 | thermal_cooling_device_register(char *type, void *devdata, |
| 598 | const struct thermal_cooling_device_ops *ops) |
| 599 | { return ERR_PTR(-ENODEV); } |
| 600 | static inline struct thermal_cooling_device * |
| 601 | thermal_of_cooling_device_register(struct device_node *np, |
| 602 | char *type, void *devdata, const struct thermal_cooling_device_ops *ops) |
| 603 | { return ERR_PTR(-ENODEV); } |
| 604 | static inline void thermal_cooling_device_unregister( |
| 605 | struct thermal_cooling_device *cdev) |
| 606 | { } |
| 607 | static inline struct thermal_zone_device *thermal_zone_get_zone_by_name( |
| 608 | const char *name) |
| 609 | { return ERR_PTR(-ENODEV); } |
| 610 | static inline int thermal_zone_get_temp( |
Sascha Hauer | 17e8351 | 2015-07-24 08:12:54 +0200 | [diff] [blame] | 611 | struct thermal_zone_device *tz, int *temp) |
Nishanth Menon | 12ca718 | 2015-02-13 19:28:02 -0600 | [diff] [blame] | 612 | { return -ENODEV; } |
Rajendra Nayak | 4a7069a | 2016-05-05 14:21:42 +0530 | [diff] [blame] | 613 | static inline int thermal_zone_get_slope( |
| 614 | struct thermal_zone_device *tz) |
| 615 | { return -ENODEV; } |
| 616 | static inline int thermal_zone_get_offset( |
| 617 | struct thermal_zone_device *tz) |
| 618 | { return -ENODEV; } |
Nishanth Menon | 12ca718 | 2015-02-13 19:28:02 -0600 | [diff] [blame] | 619 | static inline int get_tz_trend(struct thermal_zone_device *tz, int trip) |
| 620 | { return -ENODEV; } |
| 621 | static inline struct thermal_instance * |
| 622 | get_thermal_instance(struct thermal_zone_device *tz, |
| 623 | struct thermal_cooling_device *cdev, int trip) |
| 624 | { return ERR_PTR(-ENODEV); } |
| 625 | static inline void thermal_cdev_update(struct thermal_cooling_device *cdev) |
| 626 | { } |
| 627 | static inline void thermal_notify_framework(struct thermal_zone_device *tz, |
| 628 | int trip) |
| 629 | { } |
| 630 | #endif /* CONFIG_THERMAL */ |
Durgadoss R | a4a1548 | 2012-09-18 11:04:57 +0530 | [diff] [blame] | 631 | |
Nishanth Menon | 12ca718 | 2015-02-13 19:28:02 -0600 | [diff] [blame] | 632 | #if defined(CONFIG_NET) && IS_ENABLED(CONFIG_THERMAL) |
Eduardo Valentin | 8ab3e6a | 2013-01-02 15:29:39 +0000 | [diff] [blame] | 633 | extern int thermal_generate_netlink_event(struct thermal_zone_device *tz, |
| 634 | enum events event); |
Rafael J. Wysocki | af06216 | 2011-03-01 01:12:19 +0100 | [diff] [blame] | 635 | #else |
Ezequiel Garcia | f8b5870 | 2013-03-20 21:38:07 +0000 | [diff] [blame] | 636 | static inline int thermal_generate_netlink_event(struct thermal_zone_device *tz, |
Eduardo Valentin | 8ab3e6a | 2013-01-02 15:29:39 +0000 | [diff] [blame] | 637 | enum events event) |
Rafael J. Wysocki | af06216 | 2011-03-01 01:12:19 +0100 | [diff] [blame] | 638 | { |
| 639 | return 0; |
| 640 | } |
| 641 | #endif |
Zhang Rui | 203d3d4 | 2008-01-17 15:51:08 +0800 | [diff] [blame] | 642 | |
Len Brown | a0dd25b | 2008-02-09 04:01:48 -0500 | [diff] [blame] | 643 | #endif /* __THERMAL_H__ */ |