/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * ST Thermal Sensor Driver for STi series of SoCs * Author: Ajit Pal Singh <ajitpal.singh@st.com> * * Copyright (C) 2003-2014 STMicroelectronics (R&D) Limited
*/
enum st_thermal_regfield_ids {
INT_THRESH_HI = 0, /* Top two regfield IDs are mutually exclusive */
TEMP_PWR = 0,
DCORRECT,
OVERFLOW,
DATA,
INT_ENABLE,
MAX_REGFIELDS
};
/* Thermal sensor power states */ enum st_thermal_power_state {
POWER_OFF = 0,
POWER_ON
};
struct st_thermal_sensor;
/** * Description of private thermal sensor ops. * * @power_ctrl: Function for powering on/off a sensor. Clock to the * sensor is also controlled from this function. * @alloc_regfields: Allocate regmap register fields, specific to a sensor. * @do_memmap_regmap: Memory map the thermal register space and init regmap * instance or find regmap instance. * @register_irq: Register an interrupt handler for a sensor.
*/ struct st_thermal_sensor_ops { int (*power_ctrl)(struct st_thermal_sensor *, enum st_thermal_power_state); int (*alloc_regfields)(struct st_thermal_sensor *); int (*regmap_init)(struct st_thermal_sensor *); int (*register_enable_irq)(struct st_thermal_sensor *); int (*enable_irq)(struct st_thermal_sensor *);
};
/** * Description of thermal driver compatible data. * * @reg_fields: Pointer to the regfields array for a sensor. * @sys_compat: Pointer to the syscon node compatible string. * @ops: Pointer to private thermal ops for a sensor. * @calibration_val: Default calibration value to be written to the DCORRECT * register field for a sensor. * @temp_adjust_val: Value to be added/subtracted from the data read from * the sensor. If value needs to be added please provide a * positive value and if it is to be subtracted please * provide a negative value. * @crit_temp: The temperature beyond which the SoC should be shutdown * to prevent damage.
*/ struct st_thermal_compat_data { char *sys_compat; conststruct reg_field *reg_fields; conststruct st_thermal_sensor_ops *ops; unsignedint calibration_val; int temp_adjust_val; int crit_temp;
};
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