12b27bdccSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 2eb982001SEduardo Valentin /* 3eb982001SEduardo Valentin * OMAP4 Bandgap temperature sensor driver 4eb982001SEduardo Valentin * 5eb982001SEduardo Valentin * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/ 6eb982001SEduardo Valentin * Contact: 7eb982001SEduardo Valentin * Eduardo Valentin <eduardo.valentin@ti.com> 8eb982001SEduardo Valentin */ 9eb982001SEduardo Valentin #ifndef __TI_BANDGAP_H 10eb982001SEduardo Valentin #define __TI_BANDGAP_H 11eb982001SEduardo Valentin 12eb982001SEduardo Valentin #include <linux/spinlock.h> 13eb982001SEduardo Valentin #include <linux/types.h> 14eb982001SEduardo Valentin #include <linux/err.h> 155093402eSAdam Ford #include <linux/cpu_pm.h> 165093402eSAdam Ford #include <linux/device.h> 175093402eSAdam Ford #include <linux/pm_runtime.h> 185093402eSAdam Ford #include <linux/pm.h> 19eb982001SEduardo Valentin 207375f2acSLinus Walleij struct gpio_desc; 217375f2acSLinus Walleij 22eb982001SEduardo Valentin /** 23eb982001SEduardo Valentin * DOC: bandgap driver data structure 24eb982001SEduardo Valentin * ================================== 25eb982001SEduardo Valentin * 26eb982001SEduardo Valentin * +----------+----------------+ 27eb982001SEduardo Valentin * | struct temp_sensor_regval | 28eb982001SEduardo Valentin * +---------------------------+ 29eb982001SEduardo Valentin * * (Array of) 30eb982001SEduardo Valentin * | 31eb982001SEduardo Valentin * | 32eb982001SEduardo Valentin * +-------------------+ +-----------------+ 33eb982001SEduardo Valentin * | struct ti_bandgap |-->| struct device * | 34eb982001SEduardo Valentin * +----------+--------+ +-----------------+ 35eb982001SEduardo Valentin * | 36eb982001SEduardo Valentin * | 37eb982001SEduardo Valentin * V 38eb982001SEduardo Valentin * +------------------------+ 39eb982001SEduardo Valentin * | struct ti_bandgap_data | 40eb982001SEduardo Valentin * +------------------------+ 41eb982001SEduardo Valentin * | 42eb982001SEduardo Valentin * | 43eb982001SEduardo Valentin * * (Array of) 44eb982001SEduardo Valentin * +------------+------------------------------------------------------+ 45eb982001SEduardo Valentin * | +----------+------------+ +-------------------------+ | 46eb982001SEduardo Valentin * | | struct ti_temp_sensor |-->| struct temp_sensor_data | | 47eb982001SEduardo Valentin * | +-----------------------+ +------------+------------+ | 48eb982001SEduardo Valentin * | | | 49eb982001SEduardo Valentin * | + | 50eb982001SEduardo Valentin * | V | 51eb982001SEduardo Valentin * | +----------+-------------------+ | 52eb982001SEduardo Valentin * | | struct temp_sensor_registers | | 53eb982001SEduardo Valentin * | +------------------------------+ | 54eb982001SEduardo Valentin * | | 55eb982001SEduardo Valentin * +-------------------------------------------------------------------+ 56eb982001SEduardo Valentin * 57eb982001SEduardo Valentin * Above is a simple diagram describing how the data structure below 58eb982001SEduardo Valentin * are organized. For each bandgap device there should be a ti_bandgap_data 59eb982001SEduardo Valentin * containing the device instance configuration, as well as, an array of 60eb982001SEduardo Valentin * sensors, representing every sensor instance present in this bandgap. 61eb982001SEduardo Valentin */ 62eb982001SEduardo Valentin 63eb982001SEduardo Valentin /** 64eb982001SEduardo Valentin * struct temp_sensor_registers - descriptor to access registers and bitfields 65eb982001SEduardo Valentin * @temp_sensor_ctrl: TEMP_SENSOR_CTRL register offset 66eb982001SEduardo Valentin * @bgap_tempsoff_mask: mask to temp_sensor_ctrl.tempsoff 67eb982001SEduardo Valentin * @bgap_soc_mask: mask to temp_sensor_ctrl.soc 68eb982001SEduardo Valentin * @bgap_eocz_mask: mask to temp_sensor_ctrl.eocz 69eb982001SEduardo Valentin * @bgap_dtemp_mask: mask to temp_sensor_ctrl.dtemp 70eb982001SEduardo Valentin * @bgap_mask_ctrl: BANDGAP_MASK_CTRL register offset 71eb982001SEduardo Valentin * @mask_hot_mask: mask to bandgap_mask_ctrl.mask_hot 72eb982001SEduardo Valentin * @mask_cold_mask: mask to bandgap_mask_ctrl.mask_cold 73eb982001SEduardo Valentin * @mask_counter_delay_mask: mask to bandgap_mask_ctrl.mask_counter_delay 74eb982001SEduardo Valentin * @mask_freeze_mask: mask to bandgap_mask_ctrl.mask_free 75eb982001SEduardo Valentin * @bgap_mode_ctrl: BANDGAP_MODE_CTRL register offset 76eb982001SEduardo Valentin * @mode_ctrl_mask: mask to bandgap_mode_ctrl.mode_ctrl 77eb982001SEduardo Valentin * @bgap_counter: BANDGAP_COUNTER register offset 78eb982001SEduardo Valentin * @counter_mask: mask to bandgap_counter.counter 79eb982001SEduardo Valentin * @bgap_threshold: BANDGAP_THRESHOLD register offset (TALERT thresholds) 80eb982001SEduardo Valentin * @threshold_thot_mask: mask to bandgap_threhold.thot 81eb982001SEduardo Valentin * @threshold_tcold_mask: mask to bandgap_threhold.tcold 82eb982001SEduardo Valentin * @tshut_threshold: TSHUT_THRESHOLD register offset (TSHUT thresholds) 83eb982001SEduardo Valentin * @tshut_hot_mask: mask to tshut_threhold.thot 84eb982001SEduardo Valentin * @tshut_cold_mask: mask to tshut_threhold.thot 85eb982001SEduardo Valentin * @bgap_status: BANDGAP_STATUS register offset 86eb982001SEduardo Valentin * @status_hot_mask: mask to bandgap_status.hot 87eb982001SEduardo Valentin * @status_cold_mask: mask to bandgap_status.cold 88eb982001SEduardo Valentin * @ctrl_dtemp_1: CTRL_DTEMP1 register offset 89eb982001SEduardo Valentin * @ctrl_dtemp_2: CTRL_DTEMP2 register offset 90eb982001SEduardo Valentin * @bgap_efuse: BANDGAP_EFUSE register offset 91eb982001SEduardo Valentin * 92eb982001SEduardo Valentin * The register offsets and bitfields might change across 93eb982001SEduardo Valentin * OMAP and variants versions. Hence this struct serves as a 94eb982001SEduardo Valentin * descriptor map on how to access the registers and the bitfields. 95eb982001SEduardo Valentin * 96eb982001SEduardo Valentin * This descriptor contains registers of all versions of bandgap chips. 97eb982001SEduardo Valentin * Not all versions will use all registers, depending on the available 98eb982001SEduardo Valentin * features. Please read TRMs for descriptive explanation on each bitfield. 99eb982001SEduardo Valentin */ 100eb982001SEduardo Valentin 101eb982001SEduardo Valentin struct temp_sensor_registers { 102eb982001SEduardo Valentin u32 temp_sensor_ctrl; 103eb982001SEduardo Valentin u32 bgap_tempsoff_mask; 104eb982001SEduardo Valentin u32 bgap_soc_mask; 1059bebf348SBartlomiej Zolnierkiewicz u32 bgap_eocz_mask; 106eb982001SEduardo Valentin u32 bgap_dtemp_mask; 107eb982001SEduardo Valentin 108eb982001SEduardo Valentin u32 bgap_mask_ctrl; 109eb982001SEduardo Valentin u32 mask_hot_mask; 110eb982001SEduardo Valentin u32 mask_cold_mask; 111eb982001SEduardo Valentin u32 mask_counter_delay_mask; 112eb982001SEduardo Valentin u32 mask_freeze_mask; 113eb982001SEduardo Valentin 114eb982001SEduardo Valentin u32 bgap_mode_ctrl; 115eb982001SEduardo Valentin u32 mode_ctrl_mask; 116eb982001SEduardo Valentin 117eb982001SEduardo Valentin u32 bgap_counter; 118eb982001SEduardo Valentin u32 counter_mask; 119eb982001SEduardo Valentin 120eb982001SEduardo Valentin u32 bgap_threshold; 121eb982001SEduardo Valentin u32 threshold_thot_mask; 122eb982001SEduardo Valentin u32 threshold_tcold_mask; 123eb982001SEduardo Valentin 124eb982001SEduardo Valentin u32 tshut_threshold; 125eb982001SEduardo Valentin u32 tshut_hot_mask; 126eb982001SEduardo Valentin u32 tshut_cold_mask; 127eb982001SEduardo Valentin 128eb982001SEduardo Valentin u32 bgap_status; 129eb982001SEduardo Valentin u32 status_hot_mask; 130eb982001SEduardo Valentin u32 status_cold_mask; 131eb982001SEduardo Valentin 1329bebf348SBartlomiej Zolnierkiewicz u32 ctrl_dtemp_1; 1339bebf348SBartlomiej Zolnierkiewicz u32 ctrl_dtemp_2; 134eb982001SEduardo Valentin u32 bgap_efuse; 135eb982001SEduardo Valentin }; 136eb982001SEduardo Valentin 137eb982001SEduardo Valentin /** 138eb982001SEduardo Valentin * struct temp_sensor_data - The thresholds and limits for temperature sensors. 139eb982001SEduardo Valentin * @tshut_hot: temperature to trigger a thermal reset (initial value) 140eb982001SEduardo Valentin * @tshut_cold: temp to get the plat out of reset due to thermal (init val) 141eb982001SEduardo Valentin * @t_hot: temperature to trigger a thermal alert (high initial value) 142eb982001SEduardo Valentin * @t_cold: temperature to trigger a thermal alert (low initial value) 143eb982001SEduardo Valentin * @min_freq: sensor minimum clock rate 144eb982001SEduardo Valentin * @max_freq: sensor maximum clock rate 145eb982001SEduardo Valentin * 146eb982001SEduardo Valentin * This data structure will hold the required thresholds and temperature limits 147eb982001SEduardo Valentin * for a specific temperature sensor, like shutdown temperature, alert 148eb982001SEduardo Valentin * temperature, clock / rate used, ADC conversion limits and update intervals 149eb982001SEduardo Valentin */ 150eb982001SEduardo Valentin struct temp_sensor_data { 151eb982001SEduardo Valentin u32 tshut_hot; 152eb982001SEduardo Valentin u32 tshut_cold; 153eb982001SEduardo Valentin u32 t_hot; 154eb982001SEduardo Valentin u32 t_cold; 155eb982001SEduardo Valentin u32 min_freq; 156eb982001SEduardo Valentin u32 max_freq; 157eb982001SEduardo Valentin }; 158eb982001SEduardo Valentin 159eb982001SEduardo Valentin struct ti_bandgap_data; 160eb982001SEduardo Valentin 161eb982001SEduardo Valentin /** 162eb982001SEduardo Valentin * struct temp_sensor_regval - temperature sensor register values and priv data 163eb982001SEduardo Valentin * @bg_mode_ctrl: temp sensor control register value 164eb982001SEduardo Valentin * @bg_ctrl: bandgap ctrl register value 165eb982001SEduardo Valentin * @bg_counter: bandgap counter value 166eb982001SEduardo Valentin * @bg_threshold: bandgap threshold register value 167eb982001SEduardo Valentin * @tshut_threshold: bandgap tshut register value 168eb982001SEduardo Valentin * @data: private data 169eb982001SEduardo Valentin * 170eb982001SEduardo Valentin * Data structure to save and restore bandgap register set context. Only 171eb982001SEduardo Valentin * required registers are shadowed, when needed. 172eb982001SEduardo Valentin */ 173eb982001SEduardo Valentin struct temp_sensor_regval { 174eb982001SEduardo Valentin u32 bg_mode_ctrl; 175eb982001SEduardo Valentin u32 bg_ctrl; 176eb982001SEduardo Valentin u32 bg_counter; 177eb982001SEduardo Valentin u32 bg_threshold; 178eb982001SEduardo Valentin u32 tshut_threshold; 179eb982001SEduardo Valentin void *data; 180eb982001SEduardo Valentin }; 181eb982001SEduardo Valentin 182eb982001SEduardo Valentin /** 183eb982001SEduardo Valentin * struct ti_bandgap - bandgap device structure 184eb982001SEduardo Valentin * @dev: struct device pointer 185eb982001SEduardo Valentin * @base: io memory base address 186eb982001SEduardo Valentin * @conf: struct with bandgap configuration set (# sensors, conv_table, etc) 187eb982001SEduardo Valentin * @regval: temperature sensor register values 188eb982001SEduardo Valentin * @fclock: pointer to functional clock of temperature sensor 189eb982001SEduardo Valentin * @div_clk: pointer to divider clock of temperature sensor fclk 190eb982001SEduardo Valentin * @lock: spinlock for ti_bandgap structure 191eb982001SEduardo Valentin * @irq: MPU IRQ number for thermal alert 192eb982001SEduardo Valentin * @tshut_gpio: GPIO where Tshut signal is routed 193eb982001SEduardo Valentin * @clk_rate: Holds current clock rate 194eb982001SEduardo Valentin * 195eb982001SEduardo Valentin * The bandgap device structure representing the bandgap device instance. 196eb982001SEduardo Valentin * It holds most of the dynamic stuff. Configurations and sensor specific 197eb982001SEduardo Valentin * entries are inside the @conf structure. 198eb982001SEduardo Valentin */ 199eb982001SEduardo Valentin struct ti_bandgap { 200eb982001SEduardo Valentin struct device *dev; 201eb982001SEduardo Valentin void __iomem *base; 202eb982001SEduardo Valentin const struct ti_bandgap_data *conf; 203eb982001SEduardo Valentin struct temp_sensor_regval *regval; 204eb982001SEduardo Valentin struct clk *fclock; 205eb982001SEduardo Valentin struct clk *div_clk; 206eb982001SEduardo Valentin spinlock_t lock; /* shields this struct */ 207eb982001SEduardo Valentin int irq; 2087375f2acSLinus Walleij struct gpio_desc *tshut_gpiod; 209eb982001SEduardo Valentin u32 clk_rate; 2105093402eSAdam Ford struct notifier_block nb; 2115093402eSAdam Ford unsigned int is_suspended:1; 212eb982001SEduardo Valentin }; 213eb982001SEduardo Valentin 214eb982001SEduardo Valentin /** 215eb982001SEduardo Valentin * struct ti_temp_sensor - bandgap temperature sensor configuration data 216eb982001SEduardo Valentin * @ts_data: pointer to struct with thresholds, limits of temperature sensor 217eb982001SEduardo Valentin * @registers: pointer to the list of register offsets and bitfields 218eb982001SEduardo Valentin * @domain: the name of the domain where the sensor is located 219eb982001SEduardo Valentin * @slope_pcb: sensor gradient slope info for hotspot extrapolation equation 220eb982001SEduardo Valentin * with no external influence 221eb982001SEduardo Valentin * @constant_pcb: sensor gradient const info for hotspot extrapolation equation 222eb982001SEduardo Valentin * with no external influence 223eb982001SEduardo Valentin * @register_cooling: function to describe how this sensor is going to be cooled 224eb982001SEduardo Valentin * @unregister_cooling: function to release cooling data 225eb982001SEduardo Valentin * 226eb982001SEduardo Valentin * Data structure to describe a temperature sensor handled by a bandgap device. 227eb982001SEduardo Valentin * It should provide configuration details on this sensor, such as how to 228eb982001SEduardo Valentin * access the registers affecting this sensor, shadow register buffer, how to 229eb982001SEduardo Valentin * assess the gradient from hotspot, how to cooldown the domain when sensor 230eb982001SEduardo Valentin * reports too hot temperature. 231eb982001SEduardo Valentin */ 232eb982001SEduardo Valentin struct ti_temp_sensor { 233eb982001SEduardo Valentin struct temp_sensor_data *ts_data; 234eb982001SEduardo Valentin struct temp_sensor_registers *registers; 235eb982001SEduardo Valentin char *domain; 236eb982001SEduardo Valentin /* for hotspot extrapolation */ 237eb982001SEduardo Valentin const int slope_pcb; 238eb982001SEduardo Valentin const int constant_pcb; 239eb982001SEduardo Valentin int (*register_cooling)(struct ti_bandgap *bgp, int id); 240eb982001SEduardo Valentin int (*unregister_cooling)(struct ti_bandgap *bgp, int id); 241eb982001SEduardo Valentin }; 242eb982001SEduardo Valentin 243eb982001SEduardo Valentin /** 244eb982001SEduardo Valentin * DOC: ti bandgap feature types 245eb982001SEduardo Valentin * 246eb982001SEduardo Valentin * TI_BANDGAP_FEATURE_TSHUT - used when the thermal shutdown signal output 247eb982001SEduardo Valentin * of a bandgap device instance is routed to the processor. This means 248eb982001SEduardo Valentin * the system must react and perform the shutdown by itself (handle an 249eb982001SEduardo Valentin * IRQ, for instance). 250eb982001SEduardo Valentin * 251eb982001SEduardo Valentin * TI_BANDGAP_FEATURE_TSHUT_CONFIG - used when the bandgap device has control 252eb982001SEduardo Valentin * over the thermal shutdown configuration. This means that the thermal 253eb982001SEduardo Valentin * shutdown thresholds are programmable, for instance. 254eb982001SEduardo Valentin * 255eb982001SEduardo Valentin * TI_BANDGAP_FEATURE_TALERT - used when the bandgap device instance outputs 256eb982001SEduardo Valentin * a signal representing violation of programmable alert thresholds. 257eb982001SEduardo Valentin * 258eb982001SEduardo Valentin * TI_BANDGAP_FEATURE_MODE_CONFIG - used when it is possible to choose which 259eb982001SEduardo Valentin * mode, continuous or one shot, the bandgap device instance will operate. 260eb982001SEduardo Valentin * 261eb982001SEduardo Valentin * TI_BANDGAP_FEATURE_COUNTER - used when the bandgap device instance allows 262eb982001SEduardo Valentin * programming the update interval of its internal state machine. 263eb982001SEduardo Valentin * 264eb982001SEduardo Valentin * TI_BANDGAP_FEATURE_POWER_SWITCH - used when the bandgap device allows 265eb982001SEduardo Valentin * itself to be switched on/off. 266eb982001SEduardo Valentin * 267eb982001SEduardo Valentin * TI_BANDGAP_FEATURE_CLK_CTRL - used when the clocks feeding the bandgap 268eb982001SEduardo Valentin * device are gateable or not. 269eb982001SEduardo Valentin * 270eb982001SEduardo Valentin * TI_BANDGAP_FEATURE_FREEZE_BIT - used when the bandgap device features 271eb982001SEduardo Valentin * a history buffer that its update can be freezed/unfreezed. 272eb982001SEduardo Valentin * 273eb982001SEduardo Valentin * TI_BANDGAP_FEATURE_COUNTER_DELAY - used when the bandgap device features 274eb982001SEduardo Valentin * a delay programming based on distinct values. 275eb982001SEduardo Valentin * 276eb982001SEduardo Valentin * TI_BANDGAP_FEATURE_HISTORY_BUFFER - used when the bandgap device features 277eb982001SEduardo Valentin * a history buffer of temperatures. 278eb982001SEduardo Valentin * 27979010636SKeerthy * TI_BANDGAP_FEATURE_ERRATA_814 - used to workaorund when the bandgap device 28079010636SKeerthy * has Errata 814 2819c5c87e5SPavel Machek * TI_BANDGAP_FEATURE_UNRELIABLE - used when the sensor readings are too 2829c5c87e5SPavel Machek * inaccurate. 283*735c3535STony Lindgren * TI_BANDGAP_FEATURE_CONT_MODE_ONLY - used when single mode hangs the sensor 284eb982001SEduardo Valentin * TI_BANDGAP_HAS(b, f) - macro to check if a bandgap device is capable of a 285eb982001SEduardo Valentin * specific feature (above) or not. Return non-zero, if yes. 286eb982001SEduardo Valentin */ 287eb982001SEduardo Valentin #define TI_BANDGAP_FEATURE_TSHUT BIT(0) 288eb982001SEduardo Valentin #define TI_BANDGAP_FEATURE_TSHUT_CONFIG BIT(1) 289eb982001SEduardo Valentin #define TI_BANDGAP_FEATURE_TALERT BIT(2) 290eb982001SEduardo Valentin #define TI_BANDGAP_FEATURE_MODE_CONFIG BIT(3) 291eb982001SEduardo Valentin #define TI_BANDGAP_FEATURE_COUNTER BIT(4) 292eb982001SEduardo Valentin #define TI_BANDGAP_FEATURE_POWER_SWITCH BIT(5) 293eb982001SEduardo Valentin #define TI_BANDGAP_FEATURE_CLK_CTRL BIT(6) 294eb982001SEduardo Valentin #define TI_BANDGAP_FEATURE_FREEZE_BIT BIT(7) 295eb982001SEduardo Valentin #define TI_BANDGAP_FEATURE_COUNTER_DELAY BIT(8) 296eb982001SEduardo Valentin #define TI_BANDGAP_FEATURE_HISTORY_BUFFER BIT(9) 29779010636SKeerthy #define TI_BANDGAP_FEATURE_ERRATA_814 BIT(10) 2989bebf348SBartlomiej Zolnierkiewicz #define TI_BANDGAP_FEATURE_UNRELIABLE BIT(11) 299*735c3535STony Lindgren #define TI_BANDGAP_FEATURE_CONT_MODE_ONLY BIT(12) 300eb982001SEduardo Valentin #define TI_BANDGAP_HAS(b, f) \ 301eb982001SEduardo Valentin ((b)->conf->features & TI_BANDGAP_FEATURE_ ## f) 302eb982001SEduardo Valentin 303eb982001SEduardo Valentin /** 304eb982001SEduardo Valentin * struct ti_bandgap_data - ti bandgap data configuration structure 305eb982001SEduardo Valentin * @features: a bitwise flag set to describe the device features 306eb982001SEduardo Valentin * @conv_table: Pointer to ADC to temperature conversion table 307eb982001SEduardo Valentin * @adc_start_val: ADC conversion table starting value 308eb982001SEduardo Valentin * @adc_end_val: ADC conversion table ending value 309eb982001SEduardo Valentin * @fclock_name: clock name of the functional clock 310eb982001SEduardo Valentin * @div_ck_name: clock name of the clock divisor 311eb982001SEduardo Valentin * @sensor_count: count of temperature sensor within this bandgap device 312eb982001SEduardo Valentin * @report_temperature: callback to report thermal alert to thermal API 313eb982001SEduardo Valentin * @expose_sensor: callback to export sensor to thermal API 314eb982001SEduardo Valentin * @remove_sensor: callback to destroy sensor from thermal API 315eb982001SEduardo Valentin * @sensors: array of sensors present in this bandgap instance 316eb982001SEduardo Valentin * 317eb982001SEduardo Valentin * This is a data structure which should hold most of the static configuration 318eb982001SEduardo Valentin * of a bandgap device instance. It should describe which features this instance 319eb982001SEduardo Valentin * is capable of, the clock names to feed this device, the amount of sensors and 320eb982001SEduardo Valentin * their configuration representation, and how to export and unexport them to 321eb982001SEduardo Valentin * a thermal API. 322eb982001SEduardo Valentin */ 323eb982001SEduardo Valentin struct ti_bandgap_data { 324eb982001SEduardo Valentin unsigned int features; 325eb982001SEduardo Valentin const int *conv_table; 326eb982001SEduardo Valentin u32 adc_start_val; 327eb982001SEduardo Valentin u32 adc_end_val; 328eb982001SEduardo Valentin char *fclock_name; 329eb982001SEduardo Valentin char *div_ck_name; 330eb982001SEduardo Valentin int sensor_count; 331eb982001SEduardo Valentin int (*report_temperature)(struct ti_bandgap *bgp, int id); 332eb982001SEduardo Valentin int (*expose_sensor)(struct ti_bandgap *bgp, int id, char *domain); 333eb982001SEduardo Valentin int (*remove_sensor)(struct ti_bandgap *bgp, int id); 334eb982001SEduardo Valentin 335eb982001SEduardo Valentin /* this needs to be at the end */ 336eb982001SEduardo Valentin struct ti_temp_sensor sensors[]; 337eb982001SEduardo Valentin }; 338eb982001SEduardo Valentin 339eb982001SEduardo Valentin int ti_bandgap_read_update_interval(struct ti_bandgap *bgp, int id, 340eb982001SEduardo Valentin int *interval); 341eb982001SEduardo Valentin int ti_bandgap_write_update_interval(struct ti_bandgap *bgp, int id, 342eb982001SEduardo Valentin u32 interval); 343eb982001SEduardo Valentin int ti_bandgap_read_temperature(struct ti_bandgap *bgp, int id, 344eb982001SEduardo Valentin int *temperature); 345eb982001SEduardo Valentin int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data); 346eb982001SEduardo Valentin void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id); 347eb982001SEduardo Valentin int ti_bandgap_get_trend(struct ti_bandgap *bgp, int id, int *trend); 348eb982001SEduardo Valentin 3499c5c87e5SPavel Machek #ifdef CONFIG_OMAP3_THERMAL 3509c5c87e5SPavel Machek extern const struct ti_bandgap_data omap34xx_data; 351b840b6e6SEduardo Valentin extern const struct ti_bandgap_data omap36xx_data; 3529c5c87e5SPavel Machek #else 3539c5c87e5SPavel Machek #define omap34xx_data NULL 354b840b6e6SEduardo Valentin #define omap36xx_data NULL 3559c5c87e5SPavel Machek #endif 3569c5c87e5SPavel Machek 357eb982001SEduardo Valentin #ifdef CONFIG_OMAP4_THERMAL 358eb982001SEduardo Valentin extern const struct ti_bandgap_data omap4430_data; 359eb982001SEduardo Valentin extern const struct ti_bandgap_data omap4460_data; 360eb982001SEduardo Valentin extern const struct ti_bandgap_data omap4470_data; 361eb982001SEduardo Valentin #else 362eb982001SEduardo Valentin #define omap4430_data NULL 363eb982001SEduardo Valentin #define omap4460_data NULL 364eb982001SEduardo Valentin #define omap4470_data NULL 365eb982001SEduardo Valentin #endif 366eb982001SEduardo Valentin 367eb982001SEduardo Valentin #ifdef CONFIG_OMAP5_THERMAL 368eb982001SEduardo Valentin extern const struct ti_bandgap_data omap5430_data; 369eb982001SEduardo Valentin #else 370eb982001SEduardo Valentin #define omap5430_data NULL 371eb982001SEduardo Valentin #endif 372eb982001SEduardo Valentin 37325870e62SEduardo Valentin #ifdef CONFIG_DRA752_THERMAL 37425870e62SEduardo Valentin extern const struct ti_bandgap_data dra752_data; 37525870e62SEduardo Valentin #else 37625870e62SEduardo Valentin #define dra752_data NULL 37725870e62SEduardo Valentin #endif 378eb982001SEduardo Valentin #endif 379