Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Fuel gauge driver for CellWise 2013 / 2015
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (C) 2012, RockChip
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Copyright (C) 2020, Tobias Schramm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * Authors: xuhuicong <xhc@rock-chips.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * Authors: Tobias Schramm <t.schramm@manjaro.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/bits.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/gfp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/gpio/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/power_supply.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) #include <linux/property.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <linux/time.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #define CW2015_SIZE_BATINFO		64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #define CW2015_RESET_TRIES		5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define CW2015_REG_VERSION		0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #define CW2015_REG_VCELL		0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #define CW2015_REG_SOC			0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) #define CW2015_REG_RRT_ALERT		0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) #define CW2015_REG_CONFIG		0x08
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) #define CW2015_REG_MODE			0x0A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) #define CW2015_REG_BATINFO		0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) #define CW2015_MODE_SLEEP_MASK		GENMASK(7, 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) #define CW2015_MODE_SLEEP		(0x03 << 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) #define CW2015_MODE_NORMAL		(0x00 << 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) #define CW2015_MODE_QUICK_START		(0x03 << 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) #define CW2015_MODE_RESTART		(0x0f << 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) #define CW2015_CONFIG_UPDATE_FLG	(0x01 << 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) #define CW2015_ATHD(x)			((x) << 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) #define CW2015_MASK_ATHD		GENMASK(7, 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) #define CW2015_MASK_SOC			GENMASK(12, 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) /* reset gauge of no valid state of charge could be polled for 40s */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) #define CW2015_BAT_SOC_ERROR_MS		(40 * MSEC_PER_SEC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) /* reset gauge if state of charge stuck for half an hour during charging */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) #define CW2015_BAT_CHARGING_STUCK_MS	(1800 * MSEC_PER_SEC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) /* poll interval from CellWise GPL Android driver example */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) #define CW2015_DEFAULT_POLL_INTERVAL_MS		8000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) #define CW2015_AVERAGING_SAMPLES		3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) struct cw_battery {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 	struct workqueue_struct *battery_workqueue;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	struct delayed_work battery_delay_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	struct regmap *regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	struct power_supply *rk_bat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	struct power_supply_battery_info battery;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	u8 *bat_profile;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	bool charger_attached;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	bool battery_changed;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 	int soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	int voltage_mv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	int status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 	int time_to_empty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	int charge_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	u32 poll_interval_ms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	u8 alert_level;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	bool dual_cell;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	unsigned int read_errors;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	unsigned int charge_stuck_cnt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) static int cw_read_word(struct cw_battery *cw_bat, u8 reg, u16 *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	__be16 value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	ret = regmap_bulk_read(cw_bat->regmap, reg, &value, sizeof(value));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	*val = be16_to_cpu(value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) static int cw_update_profile(struct cw_battery *cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	unsigned int reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	u8 reset_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	/* make sure gauge is not in sleep mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	ret = regmap_read(cw_bat->regmap, CW2015_REG_MODE, &reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	reset_val = reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	if ((reg_val & CW2015_MODE_SLEEP_MASK) == CW2015_MODE_SLEEP) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		dev_err(cw_bat->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 			"Gauge is in sleep mode, can't update battery info\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	/* write new battery info */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	ret = regmap_raw_write(cw_bat->regmap, CW2015_REG_BATINFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 			       cw_bat->bat_profile,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 			       CW2015_SIZE_BATINFO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	/* set config update flag  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	reg_val |= CW2015_CONFIG_UPDATE_FLG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	reg_val &= ~CW2015_MASK_ATHD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	reg_val |= CW2015_ATHD(cw_bat->alert_level);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	ret = regmap_write(cw_bat->regmap, CW2015_REG_CONFIG, reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	/* reset gauge to apply new battery profile */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	reset_val &= ~CW2015_MODE_RESTART;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	reg_val = reset_val | CW2015_MODE_RESTART;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	ret = regmap_write(cw_bat->regmap, CW2015_REG_MODE, reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	/* wait for gauge to reset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	msleep(20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	/* clear reset flag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	ret = regmap_write(cw_bat->regmap, CW2015_REG_MODE, reset_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	/* wait for gauge to become ready */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	ret = regmap_read_poll_timeout(cw_bat->regmap, CW2015_REG_SOC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 				       reg_val, reg_val <= 100,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 				       10 * USEC_PER_MSEC, 10 * USEC_PER_SEC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		dev_err(cw_bat->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 			"Gauge did not become ready after profile upload\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 		dev_dbg(cw_bat->dev, "Battery profile updated\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) static int cw_init(struct cw_battery *cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	unsigned int reg_val = CW2015_MODE_SLEEP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	if ((reg_val & CW2015_MODE_SLEEP_MASK) == CW2015_MODE_SLEEP) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 		reg_val = CW2015_MODE_NORMAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 		ret = regmap_write(cw_bat->regmap, CW2015_REG_MODE, reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 		if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 			return ret;
^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) 	ret = regmap_read(cw_bat->regmap, CW2015_REG_CONFIG, &reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	if ((reg_val & CW2015_MASK_ATHD) != CW2015_ATHD(cw_bat->alert_level)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 		dev_dbg(cw_bat->dev, "Setting new alert level\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		reg_val &= ~CW2015_MASK_ATHD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 		reg_val |= ~CW2015_ATHD(cw_bat->alert_level);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 		ret = regmap_write(cw_bat->regmap, CW2015_REG_CONFIG, reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 		if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	ret = regmap_read(cw_bat->regmap, CW2015_REG_CONFIG, &reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	if (!(reg_val & CW2015_CONFIG_UPDATE_FLG)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 		dev_dbg(cw_bat->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 			"Battery profile not present, uploading battery profile\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		if (cw_bat->bat_profile) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 			ret = cw_update_profile(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 			if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 				dev_err(cw_bat->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 					"Failed to upload battery profile\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 				return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 			dev_warn(cw_bat->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 				 "No profile specified, continuing without profile\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	} else if (cw_bat->bat_profile) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 		u8 bat_info[CW2015_SIZE_BATINFO];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		ret = regmap_raw_read(cw_bat->regmap, CW2015_REG_BATINFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 				      bat_info, CW2015_SIZE_BATINFO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 		if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 			dev_err(cw_bat->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 				"Failed to read stored battery profile\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		if (memcmp(bat_info, cw_bat->bat_profile, CW2015_SIZE_BATINFO)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 			dev_warn(cw_bat->dev, "Replacing stored battery profile\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 			ret = cw_update_profile(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 			if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 				return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 		dev_warn(cw_bat->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 			 "Can't check current battery profile, no profile provided\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	dev_dbg(cw_bat->dev, "Battery profile configured\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) static int cw_power_on_reset(struct cw_battery *cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	unsigned char reset_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	reset_val = CW2015_MODE_SLEEP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	ret = regmap_write(cw_bat->regmap, CW2015_REG_MODE, reset_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	/* wait for gauge to enter sleep */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	msleep(20);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	reset_val = CW2015_MODE_NORMAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	ret = regmap_write(cw_bat->regmap, CW2015_REG_MODE, reset_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	ret = cw_init(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) #define HYSTERESIS(current, previous, up, down) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 	(((current) < (previous) + (up)) && ((current) > (previous) - (down)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) static int cw_get_soc(struct cw_battery *cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	unsigned int soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	ret = regmap_read(cw_bat->regmap, CW2015_REG_SOC, &soc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 	if (soc > 100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 		int max_error_cycles =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 			CW2015_BAT_SOC_ERROR_MS / cw_bat->poll_interval_ms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 		dev_err(cw_bat->dev, "Invalid SoC %d%%\n", soc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 		cw_bat->read_errors++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 		if (cw_bat->read_errors > max_error_cycles) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 			dev_warn(cw_bat->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 				 "Too many invalid SoC reports, resetting gauge\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 			cw_power_on_reset(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 			cw_bat->read_errors = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 		return cw_bat->soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	cw_bat->read_errors = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	/* Reset gauge if stuck while charging */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	if (cw_bat->status == POWER_SUPPLY_STATUS_CHARGING && soc == cw_bat->soc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 		int max_stuck_cycles =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 			CW2015_BAT_CHARGING_STUCK_MS / cw_bat->poll_interval_ms;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 		cw_bat->charge_stuck_cnt++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 		if (cw_bat->charge_stuck_cnt > max_stuck_cycles) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 			dev_warn(cw_bat->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 				 "SoC stuck @%u%%, resetting gauge\n", soc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 			cw_power_on_reset(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 			cw_bat->charge_stuck_cnt = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) 		cw_bat->charge_stuck_cnt = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 	/* Ignore voltage dips during charge */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	if (cw_bat->charger_attached && HYSTERESIS(soc, cw_bat->soc, 0, 3))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 		soc = cw_bat->soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	/* Ignore voltage spikes during discharge */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	if (!cw_bat->charger_attached && HYSTERESIS(soc, cw_bat->soc, 3, 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 		soc = cw_bat->soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	return soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) static int cw_get_voltage(struct cw_battery *cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	int ret, i, voltage_mv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	u16 reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	u32 avg = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	for (i = 0; i < CW2015_AVERAGING_SAMPLES; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 		ret = cw_read_word(cw_bat, CW2015_REG_VCELL, &reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 		if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 		avg += reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 	avg /= CW2015_AVERAGING_SAMPLES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	 * 305 uV per ADC step
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 	 * Use 312 / 1024  as efficient approximation of 305 / 1000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 	 * Negligible error of 0.1%
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	voltage_mv = avg * 312 / 1024;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 	if (cw_bat->dual_cell)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 		voltage_mv *= 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	dev_dbg(cw_bat->dev, "Read voltage: %d mV, raw=0x%04x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 		voltage_mv, reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	return voltage_mv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) static int cw_get_time_to_empty(struct cw_battery *cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	u16 value16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 	ret = cw_read_word(cw_bat, CW2015_REG_RRT_ALERT, &value16);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 	return value16 & CW2015_MASK_SOC;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) static void cw_update_charge_status(struct cw_battery *cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 	ret = power_supply_am_i_supplied(cw_bat->rk_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 		dev_warn(cw_bat->dev, "Failed to get supply state: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 		bool charger_attached;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 		charger_attached = !!ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 		if (cw_bat->charger_attached != charger_attached) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 			cw_bat->battery_changed = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 			if (charger_attached)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 				cw_bat->charge_count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 		cw_bat->charger_attached = charger_attached;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) static void cw_update_soc(struct cw_battery *cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 	int soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 	soc = cw_get_soc(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 	if (soc < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 		dev_err(cw_bat->dev, "Failed to get SoC from gauge: %d\n", soc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	else if (cw_bat->soc != soc) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) 		cw_bat->soc = soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 		cw_bat->battery_changed = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) static void cw_update_voltage(struct cw_battery *cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 	int voltage_mv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 	voltage_mv = cw_get_voltage(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 	if (voltage_mv < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 		dev_err(cw_bat->dev, "Failed to get voltage from gauge: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 			voltage_mv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 		cw_bat->voltage_mv = voltage_mv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) static void cw_update_status(struct cw_battery *cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 	int status = POWER_SUPPLY_STATUS_DISCHARGING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) 	if (cw_bat->charger_attached) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 		if (cw_bat->soc >= 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) 			status = POWER_SUPPLY_STATUS_FULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 			status = POWER_SUPPLY_STATUS_CHARGING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) 	if (cw_bat->status != status)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 		cw_bat->battery_changed = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) 	cw_bat->status = status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) static void cw_update_time_to_empty(struct cw_battery *cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) 	int time_to_empty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) 	time_to_empty = cw_get_time_to_empty(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) 	if (time_to_empty < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) 		dev_err(cw_bat->dev, "Failed to get time to empty from gauge: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) 			time_to_empty);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) 	cw_bat->time_to_empty = time_to_empty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) static void cw_bat_work(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) 	struct delayed_work *delay_work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) 	struct cw_battery *cw_bat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) 	unsigned int reg_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) 	delay_work = to_delayed_work(work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) 	cw_bat = container_of(delay_work, struct cw_battery, battery_delay_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) 	ret = regmap_read(cw_bat->regmap, CW2015_REG_MODE, &reg_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) 		dev_err(cw_bat->dev, "Failed to read mode from gauge: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) 		if ((reg_val & CW2015_MODE_SLEEP_MASK) == CW2015_MODE_SLEEP) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) 			int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) 			for (i = 0; i < CW2015_RESET_TRIES; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) 				if (!cw_power_on_reset(cw_bat))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) 					break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) 		cw_update_soc(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) 		cw_update_voltage(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) 		cw_update_charge_status(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) 		cw_update_status(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) 		cw_update_time_to_empty(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) 	dev_dbg(cw_bat->dev, "charger_attached = %d\n", cw_bat->charger_attached);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) 	dev_dbg(cw_bat->dev, "status = %d\n", cw_bat->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) 	dev_dbg(cw_bat->dev, "soc = %d%%\n", cw_bat->soc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) 	dev_dbg(cw_bat->dev, "voltage = %dmV\n", cw_bat->voltage_mv);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) 	if (cw_bat->battery_changed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) 		power_supply_changed(cw_bat->rk_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) 	cw_bat->battery_changed = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) 	queue_delayed_work(cw_bat->battery_workqueue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) 			   &cw_bat->battery_delay_work,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) 			   msecs_to_jiffies(cw_bat->poll_interval_ms));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) static bool cw_battery_valid_time_to_empty(struct cw_battery *cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) 	return	cw_bat->time_to_empty > 0 &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) 		cw_bat->time_to_empty < CW2015_MASK_SOC &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) 		cw_bat->status == POWER_SUPPLY_STATUS_DISCHARGING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) static int cw_get_capacity_leve(struct cw_battery *cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) 	if (cw_bat->soc < 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) 		return POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) 	else if (cw_bat->soc <= 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) 		return POWER_SUPPLY_CAPACITY_LEVEL_LOW;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) 	else if (cw_bat->soc <= 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) 		return POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) 	else if (cw_bat->soc <= 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) 		return POWER_SUPPLY_CAPACITY_LEVEL_HIGH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) 		return POWER_SUPPLY_CAPACITY_LEVEL_FULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) static int cw_battery_get_property(struct power_supply *psy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) 				   enum power_supply_property psp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) 				   union power_supply_propval *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) 	struct cw_battery *cw_bat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) 	cw_bat = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) 	switch (psp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) 	case POWER_SUPPLY_PROP_CAPACITY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) 		val->intval = cw_bat->soc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) 	case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) 		val->intval = cw_get_capacity_leve(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) 	case POWER_SUPPLY_PROP_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) 		val->intval = cw_bat->status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) 	case POWER_SUPPLY_PROP_PRESENT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) 		val->intval = !!cw_bat->voltage_mv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) 	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) 		val->intval = cw_bat->voltage_mv * 1000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) 	case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) 		if (cw_battery_valid_time_to_empty(cw_bat))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) 			val->intval = cw_bat->time_to_empty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) 			val->intval = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) 	case POWER_SUPPLY_PROP_TECHNOLOGY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) 		val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) 	case POWER_SUPPLY_PROP_CHARGE_COUNTER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) 		val->intval = cw_bat->charge_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) 	case POWER_SUPPLY_PROP_CHARGE_FULL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) 	case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) 		if (cw_bat->battery.charge_full_design_uah > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) 			val->intval = cw_bat->battery.charge_full_design_uah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) 		else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) 			val->intval = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) 	case POWER_SUPPLY_PROP_CURRENT_NOW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) 		if (cw_battery_valid_time_to_empty(cw_bat) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) 		    cw_bat->battery.charge_full_design_uah > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) 			/* calculate remaining capacity */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) 			val->intval = cw_bat->battery.charge_full_design_uah;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) 			val->intval = val->intval * cw_bat->soc / 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) 			/* estimate current based on time to empty */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) 			val->intval = 60 * val->intval / cw_bat->time_to_empty;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) 		} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) 			val->intval = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) static enum power_supply_property cw_battery_properties[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) 	POWER_SUPPLY_PROP_CAPACITY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) 	POWER_SUPPLY_PROP_CAPACITY_LEVEL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) 	POWER_SUPPLY_PROP_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) 	POWER_SUPPLY_PROP_PRESENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) 	POWER_SUPPLY_PROP_VOLTAGE_NOW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) 	POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) 	POWER_SUPPLY_PROP_TECHNOLOGY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) 	POWER_SUPPLY_PROP_CHARGE_COUNTER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) 	POWER_SUPPLY_PROP_CHARGE_FULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) 	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) 	POWER_SUPPLY_PROP_CURRENT_NOW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) static const struct power_supply_desc cw2015_bat_desc = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) 	.name		= "cw2015-battery",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) 	.type		= POWER_SUPPLY_TYPE_BATTERY,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) 	.properties	= cw_battery_properties,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) 	.num_properties	= ARRAY_SIZE(cw_battery_properties),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) 	.get_property	= cw_battery_get_property,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) static int cw2015_parse_properties(struct cw_battery *cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) 	struct device *dev = cw_bat->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) 	int length;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) 	length = device_property_count_u8(dev, "cellwise,battery-profile");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) 	if (length < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) 		dev_warn(cw_bat->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) 			 "No battery-profile found, using current flash contents\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) 	} else if (length != CW2015_SIZE_BATINFO) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) 		dev_err(cw_bat->dev, "battery-profile must be %d bytes\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) 			CW2015_SIZE_BATINFO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) 		cw_bat->bat_profile = devm_kzalloc(dev, length, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) 		if (!cw_bat->bat_profile)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) 			return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) 		ret = device_property_read_u8_array(dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) 						"cellwise,battery-profile",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) 						cw_bat->bat_profile,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) 						length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) 		if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) 	cw_bat->dual_cell = device_property_read_bool(dev, "cellwise,dual-cell");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) 	ret = device_property_read_u32(dev, "cellwise,monitor-interval-ms",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) 				       &cw_bat->poll_interval_ms);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) 		dev_dbg(cw_bat->dev, "Using default poll interval\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) 		cw_bat->poll_interval_ms = CW2015_DEFAULT_POLL_INTERVAL_MS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) 	return 0;
^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) static const struct regmap_range regmap_ranges_rd_yes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) 	regmap_reg_range(CW2015_REG_VERSION, CW2015_REG_VERSION),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) 	regmap_reg_range(CW2015_REG_VCELL, CW2015_REG_CONFIG),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) 	regmap_reg_range(CW2015_REG_MODE, CW2015_REG_MODE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) 	regmap_reg_range(CW2015_REG_BATINFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) 			CW2015_REG_BATINFO + CW2015_SIZE_BATINFO - 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) static const struct regmap_access_table regmap_rd_table = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) 	.yes_ranges = regmap_ranges_rd_yes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) 	.n_yes_ranges = 4,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) static const struct regmap_range regmap_ranges_wr_yes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) 	regmap_reg_range(CW2015_REG_RRT_ALERT, CW2015_REG_CONFIG),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) 	regmap_reg_range(CW2015_REG_MODE, CW2015_REG_MODE),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) 	regmap_reg_range(CW2015_REG_BATINFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) 			CW2015_REG_BATINFO + CW2015_SIZE_BATINFO - 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) static const struct regmap_access_table regmap_wr_table = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) 	.yes_ranges = regmap_ranges_wr_yes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) 	.n_yes_ranges = 3,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) static const struct regmap_range regmap_ranges_vol_yes[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) 	regmap_reg_range(CW2015_REG_VCELL, CW2015_REG_SOC + 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) static const struct regmap_access_table regmap_vol_table = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) 	.yes_ranges = regmap_ranges_vol_yes,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) 	.n_yes_ranges = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) static const struct regmap_config cw2015_regmap_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) 	.reg_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) 	.val_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) 	.rd_table = &regmap_rd_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) 	.wr_table = &regmap_wr_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) 	.volatile_table = &regmap_vol_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) 	.max_register = CW2015_REG_BATINFO + CW2015_SIZE_BATINFO - 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) static int cw_bat_probe(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) 	struct cw_battery *cw_bat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) 	struct power_supply_config psy_cfg = { 0 };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) 	cw_bat = devm_kzalloc(&client->dev, sizeof(*cw_bat), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) 	if (!cw_bat)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) 	i2c_set_clientdata(client, cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) 	cw_bat->dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) 	cw_bat->soc = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) 	ret = cw2015_parse_properties(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) 		dev_err(cw_bat->dev, "Failed to parse cw2015 properties\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) 	cw_bat->regmap = devm_regmap_init_i2c(client, &cw2015_regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) 	if (IS_ERR(cw_bat->regmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) 		dev_err(cw_bat->dev, "Failed to allocate regmap: %ld\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) 			PTR_ERR(cw_bat->regmap));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) 		return PTR_ERR(cw_bat->regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) 	ret = cw_init(cw_bat);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) 		dev_err(cw_bat->dev, "Init failed: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) 	psy_cfg.drv_data = cw_bat;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) 	psy_cfg.fwnode = dev_fwnode(cw_bat->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) 	cw_bat->rk_bat = devm_power_supply_register(&client->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) 						    &cw2015_bat_desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) 						    &psy_cfg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) 	if (IS_ERR(cw_bat->rk_bat)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) 		/* try again if this happens */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) 		dev_err_probe(&client->dev, PTR_ERR(cw_bat->rk_bat),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) 			"Failed to register power supply\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) 		return PTR_ERR(cw_bat->rk_bat);
^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) 	ret = power_supply_get_battery_info(cw_bat->rk_bat, &cw_bat->battery);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) 		dev_warn(cw_bat->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) 			 "No monitored battery, some properties will be missing\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) 	cw_bat->battery_workqueue = create_singlethread_workqueue("rk_battery");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) 	INIT_DELAYED_WORK(&cw_bat->battery_delay_work, cw_bat_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) 	queue_delayed_work(cw_bat->battery_workqueue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) 			   &cw_bat->battery_delay_work, msecs_to_jiffies(10));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) static int __maybe_unused cw_bat_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) 	struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) 	struct cw_battery *cw_bat = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) 	cancel_delayed_work_sync(&cw_bat->battery_delay_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) 	return 0;
^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) static int __maybe_unused cw_bat_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) 	struct i2c_client *client = to_i2c_client(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) 	struct cw_battery *cw_bat = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) 	queue_delayed_work(cw_bat->battery_workqueue,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) 			   &cw_bat->battery_delay_work, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) static SIMPLE_DEV_PM_OPS(cw_bat_pm_ops, cw_bat_suspend, cw_bat_resume);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) static int cw_bat_remove(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) 	struct cw_battery *cw_bat = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) 	cancel_delayed_work_sync(&cw_bat->battery_delay_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) 	power_supply_put_battery_info(cw_bat->rk_bat, &cw_bat->battery);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) static const struct i2c_device_id cw_bat_id_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) 	{ "cw2015", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) static const struct of_device_id cw2015_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) 	{ .compatible = "cellwise,cw2015" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) 	{ }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) MODULE_DEVICE_TABLE(of, cw2015_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) static struct i2c_driver cw_bat_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) 		.name = "cw2015",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) 		.of_match_table = cw2015_of_match,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764) 		.pm = &cw_bat_pm_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) 	.probe_new = cw_bat_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) 	.remove = cw_bat_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) 	.id_table = cw_bat_id_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) module_i2c_driver(cw_bat_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) MODULE_AUTHOR("xhc<xhc@rock-chips.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) MODULE_AUTHOR("Tobias Schramm <t.schramm@manjaro.org>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) MODULE_DESCRIPTION("cw2015/cw2013 battery driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) MODULE_LICENSE("GPL");