^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (C) ST-Ericsson SA 2012
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Battery temperature driver for AB8500
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Author:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Johan Palsson <johan.palsson@stericsson.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Karl Komierowski <karl.komierowski@stericsson.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Arun R Murthy <arun.murthy@stericsson.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/power_supply.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/completion.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/jiffies.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/mfd/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/mfd/abx500.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/mfd/abx500/ab8500.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/mfd/abx500/ab8500-bm.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/iio/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define VTVOUT_V 1800
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define BTEMP_THERMAL_LOW_LIMIT -10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define BTEMP_THERMAL_MED_LIMIT 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define BTEMP_THERMAL_HIGH_LIMIT_52 52
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define BTEMP_THERMAL_HIGH_LIMIT_57 57
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define BTEMP_THERMAL_HIGH_LIMIT_62 62
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define BTEMP_BATCTRL_CURR_SRC_7UA 7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define BTEMP_BATCTRL_CURR_SRC_20UA 20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define BTEMP_BATCTRL_CURR_SRC_16UA 16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define BTEMP_BATCTRL_CURR_SRC_18UA 18
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define BTEMP_BATCTRL_CURR_SRC_60UA 60
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define BTEMP_BATCTRL_CURR_SRC_120UA 120
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) * struct ab8500_btemp_interrupts - ab8500 interrupts
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) * @name: name of the interrupt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) * @isr function pointer to the isr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) struct ab8500_btemp_interrupts {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) irqreturn_t (*isr)(int irq, void *data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct ab8500_btemp_events {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) bool batt_rem;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) bool btemp_high;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) bool btemp_medhigh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) bool btemp_lowmed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) bool btemp_low;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) bool ac_conn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) bool usb_conn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) struct ab8500_btemp_ranges {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) int btemp_high_limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) int btemp_med_limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) int btemp_low_limit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) * struct ab8500_btemp - ab8500 BTEMP device information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) * @dev: Pointer to the structure device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) * @node: List of AB8500 BTEMPs, hence prepared for reentrance
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) * @curr_source: What current source we use, in uA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) * @bat_temp: Dispatched battery temperature in degree Celsius
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) * @prev_bat_temp Last measured battery temperature in degree Celsius
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * @parent: Pointer to the struct ab8500
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * @adc_btemp_ball: ADC channel for the battery ball temperature
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * @adc_bat_ctrl: ADC channel for the battery control
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * @fg: Pointer to the struct fg
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * @bm: Platform specific battery management information
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * @btemp_psy: Structure for BTEMP specific battery properties
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * @events: Structure for information about events triggered
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) * @btemp_ranges: Battery temperature range structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * @btemp_wq: Work queue for measuring the temperature periodically
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * @btemp_periodic_work: Work for measuring the temperature periodically
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * @initialized: True if battery id read.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) struct ab8500_btemp {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct list_head node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) int curr_source;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) int bat_temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) int prev_bat_temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) struct ab8500 *parent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) struct iio_channel *btemp_ball;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct iio_channel *bat_ctrl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) struct ab8500_fg *fg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct abx500_bm_data *bm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) struct power_supply *btemp_psy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) struct ab8500_btemp_events events;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) struct ab8500_btemp_ranges btemp_ranges;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) struct workqueue_struct *btemp_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) struct delayed_work btemp_periodic_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) bool initialized;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) /* BTEMP power supply properties */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static enum power_supply_property ab8500_btemp_props[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) POWER_SUPPLY_PROP_PRESENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) POWER_SUPPLY_PROP_ONLINE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) POWER_SUPPLY_PROP_TECHNOLOGY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) POWER_SUPPLY_PROP_TEMP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) static LIST_HEAD(ab8500_btemp_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) * ab8500_btemp_get() - returns a reference to the primary AB8500 BTEMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) * (i.e. the first BTEMP in the instance list)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) struct ab8500_btemp *ab8500_btemp_get(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) return list_first_entry(&ab8500_btemp_list, struct ab8500_btemp, node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) EXPORT_SYMBOL(ab8500_btemp_get);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) * ab8500_btemp_batctrl_volt_to_res() - convert batctrl voltage to resistance
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) * @di: pointer to the ab8500_btemp structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) * @v_batctrl: measured batctrl voltage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) * @inst_curr: measured instant current
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) * This function returns the battery resistance that is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) * derived from the BATCTRL voltage.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) * Returns value in Ohms.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static int ab8500_btemp_batctrl_volt_to_res(struct ab8500_btemp *di,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) int v_batctrl, int inst_curr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) int rbs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) if (is_ab8500_1p1_or_earlier(di->parent)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) * For ABB cut1.0 and 1.1 BAT_CTRL is internally
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) * connected to 1.8V through a 450k resistor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) return (450000 * (v_batctrl)) / (1800 - v_batctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) * If the battery has internal NTC, we use the current
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) * source to calculate the resistance.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) rbs = (v_batctrl * 1000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) - di->bm->gnd_lift_resistance * inst_curr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) / di->curr_source;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) * BAT_CTRL is internally
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) * connected to 1.8V through a 80k resistor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) rbs = (80000 * (v_batctrl)) / (1800 - v_batctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) return rbs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) * ab8500_btemp_read_batctrl_voltage() - measure batctrl voltage
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) * @di: pointer to the ab8500_btemp structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) * This function returns the voltage on BATCTRL. Returns value in mV.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) static int ab8500_btemp_read_batctrl_voltage(struct ab8500_btemp *di)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) int vbtemp, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) static int prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) ret = iio_read_channel_processed(di->bat_ctrl, &vbtemp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) dev_err(di->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) "%s ADC conversion failed, using previous value",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) return prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) prev = vbtemp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) return vbtemp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) * ab8500_btemp_curr_source_enable() - enable/disable batctrl current source
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) * @di: pointer to the ab8500_btemp structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) * @enable: enable or disable the current source
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) * Enable or disable the current sources for the BatCtrl AD channel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) static int ab8500_btemp_curr_source_enable(struct ab8500_btemp *di,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) bool enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) int curr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) * BATCTRL current sources are included on AB8500 cut2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * and future versions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) if (is_ab8500_1p1_or_earlier(di->parent))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) /* Only do this for batteries with internal NTC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL && enable) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) if (di->curr_source == BTEMP_BATCTRL_CURR_SRC_7UA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) curr = BAT_CTRL_7U_ENA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) curr = BAT_CTRL_20U_ENA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) dev_dbg(di->dev, "Set BATCTRL %duA\n", di->curr_source);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) ret = abx500_mask_and_set_register_interruptible(di->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) FORCE_BAT_CTRL_CMP_HIGH, FORCE_BAT_CTRL_CMP_HIGH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) dev_err(di->dev, "%s failed setting cmp_force\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) * We have to wait one 32kHz cycle before enabling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) * the current source, since ForceBatCtrlCmpHigh needs
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) * to be written in a separate cycle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) udelay(32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) ret = abx500_set_register_interruptible(di->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) FORCE_BAT_CTRL_CMP_HIGH | curr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) dev_err(di->dev, "%s failed enabling current source\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) goto disable_curr_source;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) } else if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL && !enable) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) dev_dbg(di->dev, "Disable BATCTRL curr source\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) /* Write 0 to the curr bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) ret = abx500_mask_and_set_register_interruptible(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) di->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) BAT_CTRL_7U_ENA | BAT_CTRL_20U_ENA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) ~(BAT_CTRL_7U_ENA | BAT_CTRL_20U_ENA));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) dev_err(di->dev, "%s failed disabling current source\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) goto disable_curr_source;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) /* Enable Pull-Up and comparator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) ret = abx500_mask_and_set_register_interruptible(di->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) BAT_CTRL_PULL_UP_ENA | BAT_CTRL_CMP_ENA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) BAT_CTRL_PULL_UP_ENA | BAT_CTRL_CMP_ENA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) dev_err(di->dev, "%s failed enabling PU and comp\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) goto enable_pu_comp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) * We have to wait one 32kHz cycle before disabling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) * ForceBatCtrlCmpHigh since this needs to be written
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) * in a separate cycle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) udelay(32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) /* Disable 'force comparator' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) ret = abx500_mask_and_set_register_interruptible(di->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) FORCE_BAT_CTRL_CMP_HIGH, ~FORCE_BAT_CTRL_CMP_HIGH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) dev_err(di->dev, "%s failed disabling force comp\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) goto disable_force_comp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) * We have to try unsetting FORCE_BAT_CTRL_CMP_HIGH one more time
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) * if we got an error above
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) disable_curr_source:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) /* Write 0 to the curr bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) ret = abx500_mask_and_set_register_interruptible(di->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) BAT_CTRL_7U_ENA | BAT_CTRL_20U_ENA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) ~(BAT_CTRL_7U_ENA | BAT_CTRL_20U_ENA));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) dev_err(di->dev, "%s failed disabling current source\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) enable_pu_comp:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) /* Enable Pull-Up and comparator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) ret = abx500_mask_and_set_register_interruptible(di->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) BAT_CTRL_PULL_UP_ENA | BAT_CTRL_CMP_ENA,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) BAT_CTRL_PULL_UP_ENA | BAT_CTRL_CMP_ENA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) dev_err(di->dev, "%s failed enabling PU and comp\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) disable_force_comp:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) * We have to wait one 32kHz cycle before disabling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) * ForceBatCtrlCmpHigh since this needs to be written
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) * in a separate cycle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) udelay(32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) /* Disable 'force comparator' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) ret = abx500_mask_and_set_register_interruptible(di->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) AB8500_CHARGER, AB8500_BAT_CTRL_CURRENT_SOURCE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) FORCE_BAT_CTRL_CMP_HIGH, ~FORCE_BAT_CTRL_CMP_HIGH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) dev_err(di->dev, "%s failed disabling force comp\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) * ab8500_btemp_get_batctrl_res() - get battery resistance
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) * @di: pointer to the ab8500_btemp structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) * This function returns the battery pack identification resistance.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) * Returns value in Ohms.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) static int ab8500_btemp_get_batctrl_res(struct ab8500_btemp *di)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) int batctrl = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) int res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) int inst_curr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) * BATCTRL current sources are included on AB8500 cut2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) * and future versions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) ret = ab8500_btemp_curr_source_enable(di, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) dev_err(di->dev, "%s curr source enabled failed\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) if (!di->fg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) di->fg = ab8500_fg_get();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) if (!di->fg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) dev_err(di->dev, "No fg found\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) ret = ab8500_fg_inst_curr_start(di->fg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) dev_err(di->dev, "Failed to start current measurement\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) msleep(20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) } while (!ab8500_fg_inst_curr_started(di->fg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) batctrl += ab8500_btemp_read_batctrl_voltage(di);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) i++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) msleep(20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) } while (!ab8500_fg_inst_curr_done(di->fg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) batctrl /= i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) ret = ab8500_fg_inst_curr_finalize(di->fg, &inst_curr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) dev_err(di->dev, "Failed to finalize current measurement\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) res = ab8500_btemp_batctrl_volt_to_res(di, batctrl, inst_curr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) ret = ab8500_btemp_curr_source_enable(di, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) dev_err(di->dev, "%s curr source disable failed\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) dev_dbg(di->dev, "%s batctrl: %d res: %d inst_curr: %d samples: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) __func__, batctrl, res, inst_curr, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) return res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) * ab8500_btemp_res_to_temp() - resistance to temperature
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) * @di: pointer to the ab8500_btemp structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) * @tbl: pointer to the resiatance to temperature table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) * @tbl_size: size of the resistance to temperature table
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) * @res: resistance to calculate the temperature from
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) * This function returns the battery temperature in degrees Celsius
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) * based on the NTC resistance.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) static int ab8500_btemp_res_to_temp(struct ab8500_btemp *di,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) const struct abx500_res_to_temp *tbl, int tbl_size, int res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) * Calculate the formula for the straight line
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) * Simple interpolation if we are within
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) * the resistance table limits, extrapolate
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) * if resistance is outside the limits.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) if (res > tbl[0].resist)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) else if (res <= tbl[tbl_size - 1].resist)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) i = tbl_size - 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) i = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) while (!(res <= tbl[i].resist &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) res > tbl[i + 1].resist))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) i++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) return tbl[i].temp + ((tbl[i + 1].temp - tbl[i].temp) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) (res - tbl[i].resist)) / (tbl[i + 1].resist - tbl[i].resist);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) * ab8500_btemp_measure_temp() - measure battery temperature
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) * @di: pointer to the ab8500_btemp structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) * Returns battery temperature (on success) else the previous temperature
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) static int ab8500_btemp_measure_temp(struct ab8500_btemp *di)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) int temp, ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) static int prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) int rbat, rntc, vntc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) u8 id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) id = di->bm->batt_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) id != BATTERY_UNKNOWN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) rbat = ab8500_btemp_get_batctrl_res(di);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) if (rbat < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) dev_err(di->dev, "%s get batctrl res failed\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) * Return out-of-range temperature so that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) * charging is stopped
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) return BTEMP_THERMAL_LOW_LIMIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) temp = ab8500_btemp_res_to_temp(di,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) di->bm->bat_type[id].r_to_t_tbl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) di->bm->bat_type[id].n_temp_tbl_elements, rbat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) ret = iio_read_channel_processed(di->btemp_ball, &vntc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) dev_err(di->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) "%s ADC conversion failed,"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) " using previous value\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) return prev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) * The PCB NTC is sourced from VTVOUT via a 230kOhm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) * resistor.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) rntc = 230000 * vntc / (VTVOUT_V - vntc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) temp = ab8500_btemp_res_to_temp(di,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) di->bm->bat_type[id].r_to_t_tbl,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) di->bm->bat_type[id].n_temp_tbl_elements, rntc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) prev = temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) dev_dbg(di->dev, "Battery temperature is %d\n", temp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) return temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) * ab8500_btemp_id() - Identify the connected battery
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) * @di: pointer to the ab8500_btemp structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) * This function will try to identify the battery by reading the ID
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) * resistor. Some brands use a combined ID resistor with a NTC resistor to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) * both be able to identify and to read the temperature of it.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) static int ab8500_btemp_id(struct ab8500_btemp *di)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) int res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) u8 i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) di->curr_source = BTEMP_BATCTRL_CURR_SRC_7UA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) di->bm->batt_id = BATTERY_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) res = ab8500_btemp_get_batctrl_res(di);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) if (res < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) dev_err(di->dev, "%s get batctrl res failed\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) /* BATTERY_UNKNOWN is defined on position 0, skip it! */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) for (i = BATTERY_UNKNOWN + 1; i < di->bm->n_btypes; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) if ((res <= di->bm->bat_type[i].resis_high) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) (res >= di->bm->bat_type[i].resis_low)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) dev_dbg(di->dev, "Battery detected on %s"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) " low %d < res %d < high: %d"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) " index: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) "BATCTRL" : "BATTEMP",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) di->bm->bat_type[i].resis_low, res,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) di->bm->bat_type[i].resis_high, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) di->bm->batt_id = i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) if (di->bm->batt_id == BATTERY_UNKNOWN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) dev_warn(di->dev, "Battery identified as unknown"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) ", resistance %d Ohm\n", res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) * We only have to change current source if the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) * detected type is Type 1.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) if (di->bm->adc_therm == ABx500_ADC_THERM_BATCTRL &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) di->bm->batt_id == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) dev_dbg(di->dev, "Set BATCTRL current source to 20uA\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) di->curr_source = BTEMP_BATCTRL_CURR_SRC_20UA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) return di->bm->batt_id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) * ab8500_btemp_periodic_work() - Measuring the temperature periodically
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) * @work: pointer to the work_struct structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) * Work function for measuring the temperature periodically
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) static void ab8500_btemp_periodic_work(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) int interval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) int bat_temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) struct ab8500_btemp *di = container_of(work,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) struct ab8500_btemp, btemp_periodic_work.work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) if (!di->initialized) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) /* Identify the battery */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) if (ab8500_btemp_id(di) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) dev_warn(di->dev, "failed to identify the battery\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) bat_temp = ab8500_btemp_measure_temp(di);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) * Filter battery temperature.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) * Allow direct updates on temperature only if two samples result in
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) * same temperature. Else only allow 1 degree change from previous
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) * reported value in the direction of the new measurement.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) if ((bat_temp == di->prev_bat_temp) || !di->initialized) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) if ((di->bat_temp != di->prev_bat_temp) || !di->initialized) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) di->initialized = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) di->bat_temp = bat_temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) power_supply_changed(di->btemp_psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) } else if (bat_temp < di->prev_bat_temp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) di->bat_temp--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) power_supply_changed(di->btemp_psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) } else if (bat_temp > di->prev_bat_temp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) di->bat_temp++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) power_supply_changed(di->btemp_psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) di->prev_bat_temp = bat_temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) if (di->events.ac_conn || di->events.usb_conn)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) interval = di->bm->temp_interval_chg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) interval = di->bm->temp_interval_nochg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) /* Schedule a new measurement */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) queue_delayed_work(di->btemp_wq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) &di->btemp_periodic_work,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) round_jiffies(interval * HZ));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) * ab8500_btemp_batctrlindb_handler() - battery removal detected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) * @irq: interrupt number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) * @_di: void pointer that has to address of ab8500_btemp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) * Returns IRQ status(IRQ_HANDLED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) static irqreturn_t ab8500_btemp_batctrlindb_handler(int irq, void *_di)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) struct ab8500_btemp *di = _di;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) dev_err(di->dev, "Battery removal detected!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) di->events.batt_rem = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) power_supply_changed(di->btemp_psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) * ab8500_btemp_templow_handler() - battery temp lower than 10 degrees
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) * @irq: interrupt number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) * @_di: void pointer that has to address of ab8500_btemp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) * Returns IRQ status(IRQ_HANDLED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) static irqreturn_t ab8500_btemp_templow_handler(int irq, void *_di)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) struct ab8500_btemp *di = _di;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) if (is_ab8500_3p3_or_earlier(di->parent)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) dev_dbg(di->dev, "Ignore false btemp low irq"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) " for ABB cut 1.0, 1.1, 2.0 and 3.3\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) dev_crit(di->dev, "Battery temperature lower than -10deg c\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) di->events.btemp_low = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) di->events.btemp_high = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) di->events.btemp_medhigh = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) di->events.btemp_lowmed = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) power_supply_changed(di->btemp_psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) * ab8500_btemp_temphigh_handler() - battery temp higher than max temp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) * @irq: interrupt number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) * @_di: void pointer that has to address of ab8500_btemp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) * Returns IRQ status(IRQ_HANDLED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) static irqreturn_t ab8500_btemp_temphigh_handler(int irq, void *_di)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) struct ab8500_btemp *di = _di;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) dev_crit(di->dev, "Battery temperature is higher than MAX temp\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) di->events.btemp_high = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) di->events.btemp_medhigh = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) di->events.btemp_lowmed = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) di->events.btemp_low = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) power_supply_changed(di->btemp_psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) * ab8500_btemp_lowmed_handler() - battery temp between low and medium
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) * @irq: interrupt number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) * @_di: void pointer that has to address of ab8500_btemp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) * Returns IRQ status(IRQ_HANDLED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) static irqreturn_t ab8500_btemp_lowmed_handler(int irq, void *_di)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) struct ab8500_btemp *di = _di;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) dev_dbg(di->dev, "Battery temperature is between low and medium\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) di->events.btemp_lowmed = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) di->events.btemp_medhigh = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) di->events.btemp_high = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) di->events.btemp_low = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) power_supply_changed(di->btemp_psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) * ab8500_btemp_medhigh_handler() - battery temp between medium and high
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) * @irq: interrupt number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) * @_di: void pointer that has to address of ab8500_btemp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) * Returns IRQ status(IRQ_HANDLED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) static irqreturn_t ab8500_btemp_medhigh_handler(int irq, void *_di)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) struct ab8500_btemp *di = _di;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) dev_dbg(di->dev, "Battery temperature is between medium and high\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) di->events.btemp_medhigh = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) di->events.btemp_lowmed = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) di->events.btemp_high = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) di->events.btemp_low = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) power_supply_changed(di->btemp_psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) * ab8500_btemp_periodic() - Periodic temperature measurements
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) * @di: pointer to the ab8500_btemp structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) * @enable: enable or disable periodic temperature measurements
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) * Starts of stops periodic temperature measurements. Periodic measurements
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) * should only be done when a charger is connected.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) static void ab8500_btemp_periodic(struct ab8500_btemp *di,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) bool enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) dev_dbg(di->dev, "Enable periodic temperature measurements: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) * Make sure a new measurement is done directly by cancelling
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) * any pending work
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) cancel_delayed_work_sync(&di->btemp_periodic_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) if (enable)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) queue_delayed_work(di->btemp_wq, &di->btemp_periodic_work, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) * ab8500_btemp_get_temp() - get battery temperature
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) * @di: pointer to the ab8500_btemp structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) * Returns battery temperature
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) int ab8500_btemp_get_temp(struct ab8500_btemp *di)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) int temp = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) * The BTEMP events are not reliabe on AB8500 cut3.3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) * and prior versions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) if (is_ab8500_3p3_or_earlier(di->parent)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) temp = di->bat_temp * 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) if (di->events.btemp_low) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) if (temp > di->btemp_ranges.btemp_low_limit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) temp = di->btemp_ranges.btemp_low_limit * 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) temp = di->bat_temp * 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) } else if (di->events.btemp_high) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) if (temp < di->btemp_ranges.btemp_high_limit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) temp = di->btemp_ranges.btemp_high_limit * 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) temp = di->bat_temp * 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778) } else if (di->events.btemp_lowmed) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) if (temp > di->btemp_ranges.btemp_med_limit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) temp = di->btemp_ranges.btemp_med_limit * 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) temp = di->bat_temp * 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) } else if (di->events.btemp_medhigh) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) if (temp < di->btemp_ranges.btemp_med_limit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) temp = di->btemp_ranges.btemp_med_limit * 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) temp = di->bat_temp * 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) } else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) temp = di->bat_temp * 10;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) return temp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) EXPORT_SYMBOL(ab8500_btemp_get_temp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) * ab8500_btemp_get_batctrl_temp() - get the temperature
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) * @btemp: pointer to the btemp structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) * Returns the batctrl temperature in millidegrees
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) int ab8500_btemp_get_batctrl_temp(struct ab8500_btemp *btemp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) return btemp->bat_temp * 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) EXPORT_SYMBOL(ab8500_btemp_get_batctrl_temp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) * ab8500_btemp_get_property() - get the btemp properties
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) * @psy: pointer to the power_supply structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) * @psp: pointer to the power_supply_property structure
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) * @val: pointer to the power_supply_propval union
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) * This function gets called when an application tries to get the btemp
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) * properties by reading the sysfs files.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) * online: presence of the battery
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) * present: presence of the battery
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817) * technology: battery technology
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) * temp: battery temperature
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) * Returns error code in case of failure else 0(on success)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) static int ab8500_btemp_get_property(struct power_supply *psy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) enum power_supply_property psp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) union power_supply_propval *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) struct ab8500_btemp *di = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) switch (psp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) case POWER_SUPPLY_PROP_PRESENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) case POWER_SUPPLY_PROP_ONLINE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) if (di->events.batt_rem)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) val->intval = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) val->intval = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) case POWER_SUPPLY_PROP_TECHNOLOGY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) val->intval = di->bm->bat_type[di->bm->batt_id].name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) case POWER_SUPPLY_PROP_TEMP:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) val->intval = ab8500_btemp_get_temp(di);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) static int ab8500_btemp_get_ext_psy_data(struct device *dev, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) struct power_supply *psy;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) struct power_supply *ext = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) const char **supplicants = (const char **)ext->supplied_to;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) struct ab8500_btemp *di;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) union power_supply_propval ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) int j;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) psy = (struct power_supply *)data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) di = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) * For all psy where the name of your driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) * appears in any supplied_to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) j = match_string(supplicants, ext->num_supplicants, psy->desc->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) if (j < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) /* Go through all properties for the psy */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) for (j = 0; j < ext->desc->num_properties; j++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) enum power_supply_property prop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) prop = ext->desc->properties[j];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) if (power_supply_get_property(ext, prop, &ret))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) continue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) switch (prop) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) case POWER_SUPPLY_PROP_PRESENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) switch (ext->desc->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) case POWER_SUPPLY_TYPE_MAINS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) /* AC disconnected */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) if (!ret.intval && di->events.ac_conn) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) di->events.ac_conn = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) /* AC connected */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) else if (ret.intval && !di->events.ac_conn) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) di->events.ac_conn = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) if (!di->events.usb_conn)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) ab8500_btemp_periodic(di, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) case POWER_SUPPLY_TYPE_USB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) /* USB disconnected */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892) if (!ret.intval && di->events.usb_conn) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) di->events.usb_conn = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) /* USB connected */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) else if (ret.intval && !di->events.usb_conn) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) di->events.usb_conn = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) if (!di->events.ac_conn)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) ab8500_btemp_periodic(di, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) * ab8500_btemp_external_power_changed() - callback for power supply changes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) * @psy: pointer to the structure power_supply
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) * This function is pointing to the function pointer external_power_changed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) * of the structure power_supply.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) * This function gets executed when there is a change in the external power
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) * supply to the btemp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) static void ab8500_btemp_external_power_changed(struct power_supply *psy)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) struct ab8500_btemp *di = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) class_for_each_device(power_supply_class, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) di->btemp_psy, ab8500_btemp_get_ext_psy_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) /* ab8500 btemp driver interrupts and their respective isr */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) static struct ab8500_btemp_interrupts ab8500_btemp_irq[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) {"BAT_CTRL_INDB", ab8500_btemp_batctrlindb_handler},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) {"BTEMP_LOW", ab8500_btemp_templow_handler},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) {"BTEMP_HIGH", ab8500_btemp_temphigh_handler},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) {"BTEMP_LOW_MEDIUM", ab8500_btemp_lowmed_handler},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) {"BTEMP_MEDIUM_HIGH", ab8500_btemp_medhigh_handler},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) #if defined(CONFIG_PM)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) static int ab8500_btemp_resume(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) struct ab8500_btemp *di = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) ab8500_btemp_periodic(di, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) static int ab8500_btemp_suspend(struct platform_device *pdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) pm_message_t state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) struct ab8500_btemp *di = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) ab8500_btemp_periodic(di, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) #define ab8500_btemp_suspend NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) #define ab8500_btemp_resume NULL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) static int ab8500_btemp_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) struct ab8500_btemp *di = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) int i, irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968) /* Disable interrupts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) for (i = 0; i < ARRAY_SIZE(ab8500_btemp_irq); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) irq = platform_get_irq_byname(pdev, ab8500_btemp_irq[i].name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) free_irq(irq, di);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) /* Delete the work queue */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) destroy_workqueue(di->btemp_wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) flush_scheduled_work();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) power_supply_unregister(di->btemp_psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) static char *supply_interface[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984) "ab8500_chargalg",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) "ab8500_fg",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988) static const struct power_supply_desc ab8500_btemp_desc = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) .name = "ab8500_btemp",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) .type = POWER_SUPPLY_TYPE_BATTERY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) .properties = ab8500_btemp_props,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) .num_properties = ARRAY_SIZE(ab8500_btemp_props),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) .get_property = ab8500_btemp_get_property,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) .external_power_changed = ab8500_btemp_external_power_changed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) static int ab8500_btemp_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) struct device_node *np = pdev->dev.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) struct abx500_bm_data *plat = pdev->dev.platform_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) struct power_supply_config psy_cfg = {};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) struct ab8500_btemp *di;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) int irq, i, ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) if (!di) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) dev_err(&pdev->dev, "%s no mem for ab8500_btemp\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) if (!plat) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) dev_err(&pdev->dev, "no battery management data supplied\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) di->bm = plat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) if (np) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) ret = ab8500_bm_of_probe(&pdev->dev, np, di->bm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) dev_err(&pdev->dev, "failed to get battery information\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) /* get parent data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) di->dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) di->parent = dev_get_drvdata(pdev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) /* Get ADC channels */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) di->btemp_ball = devm_iio_channel_get(&pdev->dev, "btemp_ball");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) if (IS_ERR(di->btemp_ball)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) if (PTR_ERR(di->btemp_ball) == -ENODEV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) return -EPROBE_DEFER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) dev_err(&pdev->dev, "failed to get BTEMP BALL ADC channel\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) return PTR_ERR(di->btemp_ball);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) di->bat_ctrl = devm_iio_channel_get(&pdev->dev, "bat_ctrl");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) if (IS_ERR(di->bat_ctrl)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) if (PTR_ERR(di->bat_ctrl) == -ENODEV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) return -EPROBE_DEFER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) dev_err(&pdev->dev, "failed to get BAT CTRL ADC channel\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) return PTR_ERR(di->bat_ctrl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) di->initialized = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) psy_cfg.supplied_to = supply_interface;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) psy_cfg.num_supplicants = ARRAY_SIZE(supply_interface);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) psy_cfg.drv_data = di;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) /* Create a work queue for the btemp */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) di->btemp_wq =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) alloc_workqueue("ab8500_btemp_wq", WQ_MEM_RECLAIM, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) if (di->btemp_wq == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) dev_err(di->dev, "failed to create work queue\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) /* Init work for measuring temperature periodically */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) INIT_DEFERRABLE_WORK(&di->btemp_periodic_work,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) ab8500_btemp_periodic_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) /* Set BTEMP thermal limits. Low and Med are fixed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) di->btemp_ranges.btemp_low_limit = BTEMP_THERMAL_LOW_LIMIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) di->btemp_ranges.btemp_med_limit = BTEMP_THERMAL_MED_LIMIT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) ret = abx500_get_register_interruptible(di->dev, AB8500_CHARGER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) AB8500_BTEMP_HIGH_TH, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) dev_err(di->dev, "%s ab8500 read failed\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) goto free_btemp_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) switch (val) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) case BTEMP_HIGH_TH_57_0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) case BTEMP_HIGH_TH_57_1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) di->btemp_ranges.btemp_high_limit =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) BTEMP_THERMAL_HIGH_LIMIT_57;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) case BTEMP_HIGH_TH_52:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) di->btemp_ranges.btemp_high_limit =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) BTEMP_THERMAL_HIGH_LIMIT_52;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) case BTEMP_HIGH_TH_62:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) di->btemp_ranges.btemp_high_limit =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) BTEMP_THERMAL_HIGH_LIMIT_62;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) /* Register BTEMP power supply class */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) di->btemp_psy = power_supply_register(di->dev, &ab8500_btemp_desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) &psy_cfg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) if (IS_ERR(di->btemp_psy)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) dev_err(di->dev, "failed to register BTEMP psy\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) ret = PTR_ERR(di->btemp_psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) goto free_btemp_wq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) /* Register interrupts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) for (i = 0; i < ARRAY_SIZE(ab8500_btemp_irq); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) irq = platform_get_irq_byname(pdev, ab8500_btemp_irq[i].name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) if (irq < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) ret = irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) goto free_irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) ret = request_threaded_irq(irq, NULL, ab8500_btemp_irq[i].isr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) IRQF_SHARED | IRQF_NO_SUSPEND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) ab8500_btemp_irq[i].name, di);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) dev_err(di->dev, "failed to request %s IRQ %d: %d\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) , ab8500_btemp_irq[i].name, irq, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) goto free_irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) dev_dbg(di->dev, "Requested %s IRQ %d: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) ab8500_btemp_irq[i].name, irq, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) platform_set_drvdata(pdev, di);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) /* Kick off periodic temperature measurements */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) ab8500_btemp_periodic(di, true);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) list_add_tail(&di->node, &ab8500_btemp_list);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) free_irq:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) /* We also have to free all successfully registered irqs */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) for (i = i - 1; i >= 0; i--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) irq = platform_get_irq_byname(pdev, ab8500_btemp_irq[i].name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) free_irq(irq, di);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) power_supply_unregister(di->btemp_psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) free_btemp_wq:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) destroy_workqueue(di->btemp_wq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) static const struct of_device_id ab8500_btemp_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) { .compatible = "stericsson,ab8500-btemp", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) { },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) MODULE_DEVICE_TABLE(of, ab8500_btemp_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) static struct platform_driver ab8500_btemp_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) .probe = ab8500_btemp_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) .remove = ab8500_btemp_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) .suspend = ab8500_btemp_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) .resume = ab8500_btemp_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) .name = "ab8500-btemp",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) .of_match_table = ab8500_btemp_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) static int __init ab8500_btemp_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) return platform_driver_register(&ab8500_btemp_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) static void __exit ab8500_btemp_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) platform_driver_unregister(&ab8500_btemp_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) device_initcall(ab8500_btemp_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) module_exit(ab8500_btemp_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) MODULE_LICENSE("GPL v2");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) MODULE_AUTHOR("Johan Palsson, Karl Komierowski, Arun R Murthy");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) MODULE_ALIAS("platform:ab8500-btemp");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) MODULE_DESCRIPTION("AB8500 battery temperature driver");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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