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Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +03001/*
2 * OMAP4 Bandgap temperature sensor driver
3 *
4 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
5 * Contact:
6 * Eduardo Valentin <eduardo.valentin@ti.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 *
22 */
Eduardo Valentin03e859d2013-03-19 10:54:21 -040023#ifndef __TI_BANDGAP_H
24#define __TI_BANDGAP_H
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +030025
Eduardo Valentinebf0bd52013-03-15 09:00:35 -040026#include <linux/spinlock.h>
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +030027#include <linux/types.h>
28#include <linux/err.h>
29
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +030030/**
Eduardo Valentin0c004772013-03-15 08:59:52 -040031 * DOC: bandgap driver data structure
32 * ==================================
Eduardo Valentin9879b2c2013-03-19 10:54:23 -040033 *
34 * +----------+----------------+
35 * | struct temp_sensor_regval |
36 * +---------------------------+
37 * * (Array of)
38 * |
39 * |
Eduardo Valentin03e859d2013-03-19 10:54:21 -040040 * +-------------------+ +-----------------+
41 * | struct ti_bandgap |-->| struct device * |
42 * +----------+--------+ +-----------------+
Eduardo Valentin0c004772013-03-15 08:59:52 -040043 * |
44 * |
45 * V
Eduardo Valentin03e859d2013-03-19 10:54:21 -040046 * +------------------------+
47 * | struct ti_bandgap_data |
48 * +------------------------+
Eduardo Valentin0c004772013-03-15 08:59:52 -040049 * |
50 * |
51 * * (Array of)
52 * +------------+------------------------------------------------------+
Eduardo Valentin03e859d2013-03-19 10:54:21 -040053 * | +----------+------------+ +-------------------------+ |
54 * | | struct ti_temp_sensor |-->| struct temp_sensor_data | |
55 * | +-----------------------+ +------------+------------+ |
Eduardo Valentin0c004772013-03-15 08:59:52 -040056 * | | |
Eduardo Valentin9879b2c2013-03-19 10:54:23 -040057 * | + |
58 * | V |
59 * | +----------+-------------------+ |
60 * | | struct temp_sensor_registers | |
61 * | +------------------------------+ |
Eduardo Valentin0c004772013-03-15 08:59:52 -040062 * | |
63 * +-------------------------------------------------------------------+
64 *
65 * Above is a simple diagram describing how the data structure below
Eduardo Valentin03e859d2013-03-19 10:54:21 -040066 * are organized. For each bandgap device there should be a ti_bandgap_data
Eduardo Valentin0c004772013-03-15 08:59:52 -040067 * containing the device instance configuration, as well as, an array of
68 * sensors, representing every sensor instance present in this bandgap.
69 */
70
71/**
72 * struct temp_sensor_registers - descriptor to access registers and bitfields
73 * @temp_sensor_ctrl: TEMP_SENSOR_CTRL register offset
74 * @bgap_tempsoff_mask: mask to temp_sensor_ctrl.tempsoff
75 * @bgap_soc_mask: mask to temp_sensor_ctrl.soc
76 * @bgap_eocz_mask: mask to temp_sensor_ctrl.eocz
77 * @bgap_dtemp_mask: mask to temp_sensor_ctrl.dtemp
78 * @bgap_mask_ctrl: BANDGAP_MASK_CTRL register offset
79 * @mask_hot_mask: mask to bandgap_mask_ctrl.mask_hot
80 * @mask_cold_mask: mask to bandgap_mask_ctrl.mask_cold
81 * @mask_sidlemode_mask: mask to bandgap_mask_ctrl.mask_sidlemode
J Keerthy525ee282013-04-01 12:04:38 -040082 * @mask_counter_delay_mask: mask to bandgap_mask_ctrl.mask_counter_delay
Eduardo Valentin0c004772013-03-15 08:59:52 -040083 * @mask_freeze_mask: mask to bandgap_mask_ctrl.mask_free
84 * @mask_clear_mask: mask to bandgap_mask_ctrl.mask_clear
85 * @mask_clear_accum_mask: mask to bandgap_mask_ctrl.mask_clear_accum
86 * @bgap_mode_ctrl: BANDGAP_MODE_CTRL register offset
87 * @mode_ctrl_mask: mask to bandgap_mode_ctrl.mode_ctrl
88 * @bgap_counter: BANDGAP_COUNTER register offset
89 * @counter_mask: mask to bandgap_counter.counter
90 * @bgap_threshold: BANDGAP_THRESHOLD register offset (TALERT thresholds)
91 * @threshold_thot_mask: mask to bandgap_threhold.thot
92 * @threshold_tcold_mask: mask to bandgap_threhold.tcold
93 * @tshut_threshold: TSHUT_THRESHOLD register offset (TSHUT thresholds)
94 * @tshut_efuse_mask: mask to tshut_threshold.tshut_efuse
95 * @tshut_efuse_shift: shift to tshut_threshold.tshut_efuse
96 * @tshut_hot_mask: mask to tshut_threhold.thot
97 * @tshut_cold_mask: mask to tshut_threhold.thot
98 * @bgap_status: BANDGAP_STATUS register offset
99 * @status_clean_stop_mask: mask to bandgap_status.clean_stop
100 * @status_bgap_alert_mask: mask to bandgap_status.bandgap_alert
101 * @status_hot_mask: mask to bandgap_status.hot
102 * @status_cold_mask: mask to bandgap_status.cold
103 * @bgap_cumul_dtemp: BANDGAP_CUMUL_DTEMP register offset
104 * @ctrl_dtemp_0: CTRL_DTEMP0 register offset
105 * @ctrl_dtemp_1: CTRL_DTEMP1 register offset
106 * @ctrl_dtemp_2: CTRL_DTEMP2 register offset
107 * @ctrl_dtemp_3: CTRL_DTEMP3 register offset
108 * @ctrl_dtemp_4: CTRL_DTEMP4 register offset
109 * @bgap_efuse: BANDGAP_EFUSE register offset
110 *
111 * The register offsets and bitfields might change across
112 * OMAP and variants versions. Hence this struct serves as a
113 * descriptor map on how to access the registers and the bitfields.
114 *
115 * This descriptor contains registers of all versions of bandgap chips.
116 * Not all versions will use all registers, depending on the available
117 * features. Please read TRMs for descriptive explanation on each bitfield.
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300118 */
119
120struct temp_sensor_registers {
121 u32 temp_sensor_ctrl;
122 u32 bgap_tempsoff_mask;
123 u32 bgap_soc_mask;
Eduardo Valentin0c004772013-03-15 08:59:52 -0400124 u32 bgap_eocz_mask; /* not used: but needs revisit */
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300125 u32 bgap_dtemp_mask;
126
127 u32 bgap_mask_ctrl;
128 u32 mask_hot_mask;
129 u32 mask_cold_mask;
Eduardo Valentin0c004772013-03-15 08:59:52 -0400130 u32 mask_sidlemode_mask; /* not used: but may be needed for pm */
J Keerthy525ee282013-04-01 12:04:38 -0400131 u32 mask_counter_delay_mask;
Eduardo Valentin1aa556a2013-02-26 18:53:29 -0400132 u32 mask_freeze_mask;
Eduardo Valentin0c004772013-03-15 08:59:52 -0400133 u32 mask_clear_mask; /* not used: but needed for trending */
134 u32 mask_clear_accum_mask; /* not used: but needed for trending */
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300135
136 u32 bgap_mode_ctrl;
137 u32 mode_ctrl_mask;
138
139 u32 bgap_counter;
140 u32 counter_mask;
141
142 u32 bgap_threshold;
143 u32 threshold_thot_mask;
144 u32 threshold_tcold_mask;
145
146 u32 tshut_threshold;
Eduardo Valentin0c004772013-03-15 08:59:52 -0400147 u32 tshut_efuse_mask; /* not used */
148 u32 tshut_efuse_shift; /* not used */
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300149 u32 tshut_hot_mask;
150 u32 tshut_cold_mask;
151
152 u32 bgap_status;
Eduardo Valentin0c004772013-03-15 08:59:52 -0400153 u32 status_clean_stop_mask; /* not used: but needed for trending */
154 u32 status_bgap_alert_mask; /* not used */
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300155 u32 status_hot_mask;
156 u32 status_cold_mask;
157
Eduardo Valentin0c004772013-03-15 08:59:52 -0400158 u32 bgap_cumul_dtemp; /* not used: but needed for trending */
159 u32 ctrl_dtemp_0; /* not used: but needed for trending */
160 u32 ctrl_dtemp_1; /* not used: but needed for trending */
161 u32 ctrl_dtemp_2; /* not used: but needed for trending */
162 u32 ctrl_dtemp_3; /* not used: but needed for trending */
163 u32 ctrl_dtemp_4; /* not used: but needed for trending */
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300164 u32 bgap_efuse;
165};
166
167/**
Eduardo Valentin0c004772013-03-15 08:59:52 -0400168 * struct temp_sensor_data - The thresholds and limits for temperature sensors.
169 * @tshut_hot: temperature to trigger a thermal reset (initial value)
170 * @tshut_cold: temp to get the plat out of reset due to thermal (init val)
171 * @t_hot: temperature to trigger a thermal alert (high initial value)
172 * @t_cold: temperature to trigger a thermal alert (low initial value)
173 * @min_freq: sensor minimum clock rate
174 * @max_freq: sensor maximum clock rate
175 * @max_temp: sensor maximum temperature
176 * @min_temp: sensor minimum temperature
177 * @hyst_val: temperature hysteresis considered while converting ADC values
Eduardo Valentin0c004772013-03-15 08:59:52 -0400178 * @update_int1: update interval
179 * @update_int2: update interval
180 *
181 * This data structure will hold the required thresholds and temperature limits
182 * for a specific temperature sensor, like shutdown temperature, alert
183 * temperature, clock / rate used, ADC conversion limits and update intervals
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300184 */
185struct temp_sensor_data {
186 u32 tshut_hot;
187 u32 tshut_cold;
188 u32 t_hot;
189 u32 t_cold;
190 u32 min_freq;
191 u32 max_freq;
192 int max_temp;
193 int min_temp;
194 int hyst_val;
Eduardo Valentin0c004772013-03-15 08:59:52 -0400195 u32 update_int1; /* not used */
196 u32 update_int2; /* not used */
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300197};
198
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400199struct ti_bandgap_data;
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300200
201/**
Eduardo Valentin9879b2c2013-03-19 10:54:23 -0400202 * struct temp_sensor_regval - temperature sensor register values and priv data
203 * @bg_mode_ctrl: temp sensor control register value
204 * @bg_ctrl: bandgap ctrl register value
205 * @bg_counter: bandgap counter value
206 * @bg_threshold: bandgap threshold register value
207 * @tshut_threshold: bandgap tshut register value
208 * @data: private data
209 *
210 * Data structure to save and restore bandgap register set context. Only
211 * required registers are shadowed, when needed.
212 */
213struct temp_sensor_regval {
214 u32 bg_mode_ctrl;
215 u32 bg_ctrl;
216 u32 bg_counter;
217 u32 bg_threshold;
218 u32 tshut_threshold;
219 void *data;
220};
221
222/**
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400223 * struct ti_bandgap - bandgap device structure
Eduardo Valentin0c004772013-03-15 08:59:52 -0400224 * @dev: struct device pointer
225 * @base: io memory base address
226 * @conf: struct with bandgap configuration set (# sensors, conv_table, etc)
Eduardo Valentin9879b2c2013-03-19 10:54:23 -0400227 * @regval: temperature sensor register values
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300228 * @fclock: pointer to functional clock of temperature sensor
Eduardo Valentin0c004772013-03-15 08:59:52 -0400229 * @div_clk: pointer to divider clock of temperature sensor fclk
Eduardo Valentin61603af2013-03-19 10:54:25 -0400230 * @lock: spinlock for ti_bandgap structure
Eduardo Valentin0c004772013-03-15 08:59:52 -0400231 * @irq: MPU IRQ number for thermal alert
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300232 * @tshut_gpio: GPIO where Tshut signal is routed
233 * @clk_rate: Holds current clock rate
Eduardo Valentin0c004772013-03-15 08:59:52 -0400234 *
235 * The bandgap device structure representing the bandgap device instance.
236 * It holds most of the dynamic stuff. Configurations and sensor specific
237 * entries are inside the @conf structure.
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300238 */
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400239struct ti_bandgap {
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300240 struct device *dev;
241 void __iomem *base;
Eduardo Valentin9879b2c2013-03-19 10:54:23 -0400242 const struct ti_bandgap_data *conf;
243 struct temp_sensor_regval *regval;
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300244 struct clk *fclock;
245 struct clk *div_clk;
Eduardo Valentinebf0bd52013-03-15 09:00:35 -0400246 spinlock_t lock; /* shields this struct */
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300247 int irq;
248 int tshut_gpio;
249 u32 clk_rate;
250};
251
252/**
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400253 * struct ti_temp_sensor - bandgap temperature sensor configuration data
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300254 * @ts_data: pointer to struct with thresholds, limits of temperature sensor
255 * @registers: pointer to the list of register offsets and bitfields
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300256 * @domain: the name of the domain where the sensor is located
Eduardo Valentin0c004772013-03-15 08:59:52 -0400257 * @slope: sensor gradient slope info for hotspot extrapolation equation
Eduardo Valentin61603af2013-03-19 10:54:25 -0400258 * @constant: sensor gradient const info for hotspot extrapolation equation
Eduardo Valentin0c004772013-03-15 08:59:52 -0400259 * @slope_pcb: sensor gradient slope info for hotspot extrapolation equation
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300260 * with no external influence
Eduardo Valentin0c004772013-03-15 08:59:52 -0400261 * @constant_pcb: sensor gradient const info for hotspot extrapolation equation
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300262 * with no external influence
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300263 * @register_cooling: function to describe how this sensor is going to be cooled
264 * @unregister_cooling: function to release cooling data
Eduardo Valentin0c004772013-03-15 08:59:52 -0400265 *
266 * Data structure to describe a temperature sensor handled by a bandgap device.
267 * It should provide configuration details on this sensor, such as how to
268 * access the registers affecting this sensor, shadow register buffer, how to
269 * assess the gradient from hotspot, how to cooldown the domain when sensor
270 * reports too hot temperature.
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300271 */
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400272struct ti_temp_sensor {
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300273 struct temp_sensor_data *ts_data;
274 struct temp_sensor_registers *registers;
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300275 char *domain;
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300276 /* for hotspot extrapolation */
277 const int slope;
278 const int constant;
279 const int slope_pcb;
280 const int constant_pcb;
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400281 int (*register_cooling)(struct ti_bandgap *bgp, int id);
282 int (*unregister_cooling)(struct ti_bandgap *bgp, int id);
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300283};
284
285/**
Eduardo Valentin61603af2013-03-19 10:54:25 -0400286 * DOC: ti bandgap feature types
Eduardo Valentin0c004772013-03-15 08:59:52 -0400287 *
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400288 * TI_BANDGAP_FEATURE_TSHUT - used when the thermal shutdown signal output
Eduardo Valentin0c004772013-03-15 08:59:52 -0400289 * of a bandgap device instance is routed to the processor. This means
290 * the system must react and perform the shutdown by itself (handle an
291 * IRQ, for instance).
292 *
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400293 * TI_BANDGAP_FEATURE_TSHUT_CONFIG - used when the bandgap device has control
Eduardo Valentin0c004772013-03-15 08:59:52 -0400294 * over the thermal shutdown configuration. This means that the thermal
295 * shutdown thresholds are programmable, for instance.
296 *
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400297 * TI_BANDGAP_FEATURE_TALERT - used when the bandgap device instance outputs
Eduardo Valentin0c004772013-03-15 08:59:52 -0400298 * a signal representing violation of programmable alert thresholds.
299 *
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400300 * TI_BANDGAP_FEATURE_MODE_CONFIG - used when it is possible to choose which
Eduardo Valentin0c004772013-03-15 08:59:52 -0400301 * mode, continuous or one shot, the bandgap device instance will operate.
302 *
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400303 * TI_BANDGAP_FEATURE_COUNTER - used when the bandgap device instance allows
Eduardo Valentin0c004772013-03-15 08:59:52 -0400304 * programming the update interval of its internal state machine.
305 *
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400306 * TI_BANDGAP_FEATURE_POWER_SWITCH - used when the bandgap device allows
Eduardo Valentin0c004772013-03-15 08:59:52 -0400307 * itself to be switched on/off.
308 *
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400309 * TI_BANDGAP_FEATURE_CLK_CTRL - used when the clocks feeding the bandgap
Eduardo Valentin0c004772013-03-15 08:59:52 -0400310 * device are gateable or not.
311 *
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400312 * TI_BANDGAP_FEATURE_FREEZE_BIT - used when the bandgap device features
Eduardo Valentin0c004772013-03-15 08:59:52 -0400313 * a history buffer that its update can be freezed/unfreezed.
314 *
J Keerthy3ff027f2013-04-01 12:04:40 -0400315 * TI_BANDGAP_FEATURE_COUNTER_DELAY - used when the bandgap device features
316 * a delay programming based on distinct values.
317 *
J Keerthy07a7fb62013-04-01 12:04:43 -0400318 * TI_BANDGAP_FEATURE_HISTORY_BUFFER - used when the bandgap device features
319 * a history buffer of temperatures.
320 *
Keerthy79010632015-04-22 18:21:41 +0530321 * TI_BANDGAP_FEATURE_ERRATA_814 - used to workaorund when the bandgap device
322 * has Errata 814
Keerthye9a90d02015-04-22 18:21:42 +0530323 * TI_BANDGAP_FEATURE_ERRATA_813 - used to workaorund when the bandgap device
324 * has Errata 813
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400325 * TI_BANDGAP_HAS(b, f) - macro to check if a bandgap device is capable of a
Eduardo Valentin0c004772013-03-15 08:59:52 -0400326 * specific feature (above) or not. Return non-zero, if yes.
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300327 */
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400328#define TI_BANDGAP_FEATURE_TSHUT BIT(0)
329#define TI_BANDGAP_FEATURE_TSHUT_CONFIG BIT(1)
330#define TI_BANDGAP_FEATURE_TALERT BIT(2)
331#define TI_BANDGAP_FEATURE_MODE_CONFIG BIT(3)
332#define TI_BANDGAP_FEATURE_COUNTER BIT(4)
333#define TI_BANDGAP_FEATURE_POWER_SWITCH BIT(5)
334#define TI_BANDGAP_FEATURE_CLK_CTRL BIT(6)
335#define TI_BANDGAP_FEATURE_FREEZE_BIT BIT(7)
J Keerthy3ff027f2013-04-01 12:04:40 -0400336#define TI_BANDGAP_FEATURE_COUNTER_DELAY BIT(8)
J Keerthy07a7fb62013-04-01 12:04:43 -0400337#define TI_BANDGAP_FEATURE_HISTORY_BUFFER BIT(9)
Keerthy79010632015-04-22 18:21:41 +0530338#define TI_BANDGAP_FEATURE_ERRATA_814 BIT(10)
Keerthye9a90d02015-04-22 18:21:42 +0530339#define TI_BANDGAP_FEATURE_ERRATA_813 BIT(11)
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400340#define TI_BANDGAP_HAS(b, f) \
341 ((b)->conf->features & TI_BANDGAP_FEATURE_ ## f)
Eduardo Valentin0c004772013-03-15 08:59:52 -0400342
343/**
Eduardo Valentin61603af2013-03-19 10:54:25 -0400344 * struct ti_bandgap_data - ti bandgap data configuration structure
Eduardo Valentin0c004772013-03-15 08:59:52 -0400345 * @features: a bitwise flag set to describe the device features
346 * @conv_table: Pointer to ADC to temperature conversion table
Eduardo Valentin26a70ed2013-03-15 09:00:14 -0400347 * @adc_start_val: ADC conversion table starting value
348 * @adc_end_val: ADC conversion table ending value
Eduardo Valentin0c004772013-03-15 08:59:52 -0400349 * @fclock_name: clock name of the functional clock
350 * @div_ck_name: clock name of the clock divisor
351 * @sensor_count: count of temperature sensor within this bandgap device
352 * @report_temperature: callback to report thermal alert to thermal API
353 * @expose_sensor: callback to export sensor to thermal API
354 * @remove_sensor: callback to destroy sensor from thermal API
355 * @sensors: array of sensors present in this bandgap instance
356 *
357 * This is a data structure which should hold most of the static configuration
358 * of a bandgap device instance. It should describe which features this instance
359 * is capable of, the clock names to feed this device, the amount of sensors and
360 * their configuration representation, and how to export and unexport them to
361 * a thermal API.
362 */
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400363struct ti_bandgap_data {
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300364 unsigned int features;
365 const int *conv_table;
Eduardo Valentin26a70ed2013-03-15 09:00:14 -0400366 u32 adc_start_val;
367 u32 adc_end_val;
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300368 char *fclock_name;
369 char *div_ck_name;
370 int sensor_count;
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400371 int (*report_temperature)(struct ti_bandgap *bgp, int id);
372 int (*expose_sensor)(struct ti_bandgap *bgp, int id, char *domain);
373 int (*remove_sensor)(struct ti_bandgap *bgp, int id);
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300374
375 /* this needs to be at the end */
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400376 struct ti_temp_sensor sensors[];
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300377};
378
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400379int ti_bandgap_read_thot(struct ti_bandgap *bgp, int id, int *thot);
380int ti_bandgap_write_thot(struct ti_bandgap *bgp, int id, int val);
381int ti_bandgap_read_tcold(struct ti_bandgap *bgp, int id, int *tcold);
382int ti_bandgap_write_tcold(struct ti_bandgap *bgp, int id, int val);
383int ti_bandgap_read_update_interval(struct ti_bandgap *bgp, int id,
384 int *interval);
385int ti_bandgap_write_update_interval(struct ti_bandgap *bgp, int id,
386 u32 interval);
387int ti_bandgap_read_temperature(struct ti_bandgap *bgp, int id,
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300388 int *temperature);
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400389int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data);
390void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id);
J Keerthy2f440b02013-04-01 12:04:45 -0400391int ti_bandgap_get_trend(struct ti_bandgap *bgp, int id, int *trend);
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300392
Eduardo Valentin1a312702012-07-12 19:02:31 +0300393#ifdef CONFIG_OMAP4_THERMAL
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400394extern const struct ti_bandgap_data omap4430_data;
395extern const struct ti_bandgap_data omap4460_data;
396extern const struct ti_bandgap_data omap4470_data;
Eduardo Valentin1a312702012-07-12 19:02:31 +0300397#else
398#define omap4430_data NULL
399#define omap4460_data NULL
400#define omap4470_data NULL
401#endif
402
Eduardo Valentin949f5a52012-07-12 19:02:32 +0300403#ifdef CONFIG_OMAP5_THERMAL
Eduardo Valentin03e859d2013-03-19 10:54:21 -0400404extern const struct ti_bandgap_data omap5430_data;
Eduardo Valentin949f5a52012-07-12 19:02:32 +0300405#else
406#define omap5430_data NULL
407#endif
408
Eduardo Valentin25870e62013-05-29 15:07:45 +0000409#ifdef CONFIG_DRA752_THERMAL
410extern const struct ti_bandgap_data dra752_data;
411#else
412#define dra752_data NULL
413#endif
Eduardo Valentin8feaf0ce2012-07-12 19:02:29 +0300414#endif