// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2011-2015, 2017, 2020, The Linux Foundation. All rights reserved. */ #include <linux/bitops.h> #include <linux/delay.h> #include <linux/err.h> #include <linux/iio/consumer.h> #include <linux/interrupt.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/regmap.h> #include <linux/thermal.h> #include "../thermal_hwmon.h" #define QPNP_TM_REG_DIG_MAJOR … #define QPNP_TM_REG_TYPE … #define QPNP_TM_REG_SUBTYPE … #define QPNP_TM_REG_STATUS … #define QPNP_TM_REG_SHUTDOWN_CTRL1 … #define QPNP_TM_REG_ALARM_CTRL … #define QPNP_TM_TYPE … #define QPNP_TM_SUBTYPE_GEN1 … #define QPNP_TM_SUBTYPE_GEN2 … #define STATUS_GEN1_STAGE_MASK … #define STATUS_GEN2_STATE_MASK … #define STATUS_GEN2_STATE_SHIFT … #define SHUTDOWN_CTRL1_OVERRIDE_S2 … #define SHUTDOWN_CTRL1_THRESHOLD_MASK … #define SHUTDOWN_CTRL1_RATE_25HZ … #define ALARM_CTRL_FORCE_ENABLE … #define THRESH_COUNT … #define STAGE_COUNT … /* Over-temperature trip point values in mC */ static const long temp_map_gen1[THRESH_COUNT][STAGE_COUNT] = …; static const long temp_map_gen2_v1[THRESH_COUNT][STAGE_COUNT] = …; #define TEMP_THRESH_STEP … #define THRESH_MIN … #define THRESH_MAX … #define TEMP_STAGE_HYSTERESIS … /* Temperature in Milli Celsius reported during stage 0 if no ADC is present */ #define DEFAULT_TEMP … struct qpnp_tm_chip { … }; /* This array maps from GEN2 alarm state to GEN1 alarm stage */ static const unsigned int alarm_state_map[8] = …; static int qpnp_tm_read(struct qpnp_tm_chip *chip, u16 addr, u8 *data) { … } static int qpnp_tm_write(struct qpnp_tm_chip *chip, u16 addr, u8 data) { … } /** * qpnp_tm_decode_temp() - return temperature in mC corresponding to the * specified over-temperature stage * @chip: Pointer to the qpnp_tm chip * @stage: Over-temperature stage * * Return: temperature in mC */ static long qpnp_tm_decode_temp(struct qpnp_tm_chip *chip, unsigned int stage) { … } /** * qpnp_tm_get_temp_stage() - return over-temperature stage * @chip: Pointer to the qpnp_tm chip * * Return: stage (GEN1) or state (GEN2) on success, or errno on failure. */ static int qpnp_tm_get_temp_stage(struct qpnp_tm_chip *chip) { … } /* * This function updates the internal temp value based on the * current thermal stage and threshold as well as the previous stage */ static int qpnp_tm_update_temp_no_adc(struct qpnp_tm_chip *chip) { … } static int qpnp_tm_get_temp(struct thermal_zone_device *tz, int *temp) { … } static int qpnp_tm_update_critical_trip_temp(struct qpnp_tm_chip *chip, int temp) { … } static int qpnp_tm_set_trip_temp(struct thermal_zone_device *tz, const struct thermal_trip *trip, int temp) { … } static const struct thermal_zone_device_ops qpnp_tm_sensor_ops = …; static irqreturn_t qpnp_tm_isr(int irq, void *data) { … } static int qpnp_tm_get_critical_trip_temp(struct qpnp_tm_chip *chip) { … } /* * This function initializes the internal temp value based on only the * current thermal stage and threshold. Setup threshold control and * disable shutdown override. */ static int qpnp_tm_init(struct qpnp_tm_chip *chip) { … } static int qpnp_tm_probe(struct platform_device *pdev) { … } static const struct of_device_id qpnp_tm_match_table[] = …; MODULE_DEVICE_TABLE(of, qpnp_tm_match_table); static struct platform_driver qpnp_tm_driver = …; module_platform_driver(…) …; MODULE_ALIAS(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …;
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