^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * bq2415x charger driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2011-2013 Pali Rohár <pali@kernel.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Datasheets:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * https://www.ti.com/product/bq24150
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * https://www.ti.com/product/bq24150a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * https://www.ti.com/product/bq24152
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * https://www.ti.com/product/bq24153
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * https://www.ti.com/product/bq24153a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * https://www.ti.com/product/bq24155
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * https://www.ti.com/product/bq24157s
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * https://www.ti.com/product/bq24158
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/param.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/err.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/sysfs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <linux/power_supply.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/idr.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/acpi.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/power/bq2415x_charger.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) /* timeout for resetting chip timer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define BQ2415X_TIMER_TIMEOUT 10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define BQ2415X_REG_STATUS 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define BQ2415X_REG_CONTROL 0x01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define BQ2415X_REG_VOLTAGE 0x02
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define BQ2415X_REG_VENDER 0x03
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define BQ2415X_REG_CURRENT 0x04
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) /* reset state for all registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define BQ2415X_RESET_STATUS BIT(6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define BQ2415X_RESET_CONTROL (BIT(4)|BIT(5))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define BQ2415X_RESET_VOLTAGE (BIT(1)|BIT(3))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define BQ2415X_RESET_CURRENT (BIT(0)|BIT(3)|BIT(7))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) /* status register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define BQ2415X_BIT_TMR_RST 7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define BQ2415X_BIT_OTG 7
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define BQ2415X_BIT_EN_STAT 6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) #define BQ2415X_MASK_STAT (BIT(4)|BIT(5))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #define BQ2415X_SHIFT_STAT 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define BQ2415X_BIT_BOOST 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define BQ2415X_MASK_FAULT (BIT(0)|BIT(1)|BIT(2))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define BQ2415X_SHIFT_FAULT 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) /* control register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) #define BQ2415X_MASK_LIMIT (BIT(6)|BIT(7))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define BQ2415X_SHIFT_LIMIT 6
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define BQ2415X_MASK_VLOWV (BIT(4)|BIT(5))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #define BQ2415X_SHIFT_VLOWV 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define BQ2415X_BIT_TE 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #define BQ2415X_BIT_CE 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define BQ2415X_BIT_HZ_MODE 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) #define BQ2415X_BIT_OPA_MODE 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) /* voltage register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #define BQ2415X_MASK_VO (BIT(2)|BIT(3)|BIT(4)|BIT(5)|BIT(6)|BIT(7))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define BQ2415X_SHIFT_VO 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #define BQ2415X_BIT_OTG_PL 1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) #define BQ2415X_BIT_OTG_EN 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) /* vender register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #define BQ2415X_MASK_VENDER (BIT(5)|BIT(6)|BIT(7))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #define BQ2415X_SHIFT_VENDER 5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) #define BQ2415X_MASK_PN (BIT(3)|BIT(4))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) #define BQ2415X_SHIFT_PN 3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #define BQ2415X_MASK_REVISION (BIT(0)|BIT(1)|BIT(2))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) #define BQ2415X_SHIFT_REVISION 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) /* current register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #define BQ2415X_MASK_RESET BIT(7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) #define BQ2415X_MASK_VI_CHRG (BIT(4)|BIT(5)|BIT(6))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) #define BQ2415X_SHIFT_VI_CHRG 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) /* N/A BIT(3) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #define BQ2415X_MASK_VI_TERM (BIT(0)|BIT(1)|BIT(2))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) #define BQ2415X_SHIFT_VI_TERM 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) enum bq2415x_command {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) BQ2415X_TIMER_RESET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) BQ2415X_OTG_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) BQ2415X_STAT_PIN_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) BQ2415X_STAT_PIN_ENABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) BQ2415X_STAT_PIN_DISABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) BQ2415X_CHARGE_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) BQ2415X_BOOST_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) BQ2415X_FAULT_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) BQ2415X_CHARGE_TERMINATION_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) BQ2415X_CHARGE_TERMINATION_ENABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) BQ2415X_CHARGE_TERMINATION_DISABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) BQ2415X_CHARGER_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) BQ2415X_CHARGER_ENABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) BQ2415X_CHARGER_DISABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) BQ2415X_HIGH_IMPEDANCE_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) BQ2415X_HIGH_IMPEDANCE_ENABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) BQ2415X_HIGH_IMPEDANCE_DISABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) BQ2415X_BOOST_MODE_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) BQ2415X_BOOST_MODE_ENABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) BQ2415X_BOOST_MODE_DISABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) BQ2415X_OTG_LEVEL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) BQ2415X_OTG_ACTIVATE_HIGH,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) BQ2415X_OTG_ACTIVATE_LOW,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) BQ2415X_OTG_PIN_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) BQ2415X_OTG_PIN_ENABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) BQ2415X_OTG_PIN_DISABLE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) BQ2415X_VENDER_CODE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) BQ2415X_PART_NUMBER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) BQ2415X_REVISION,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) enum bq2415x_chip {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) BQUNKNOWN,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) BQ24150,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) BQ24150A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) BQ24151,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) BQ24151A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) BQ24152,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) BQ24153,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) BQ24153A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) BQ24155,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) BQ24156,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) BQ24156A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) BQ24157S,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) BQ24158,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static char *bq2415x_chip_name[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) "unknown",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) "bq24150",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) "bq24150a",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) "bq24151",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) "bq24151a",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) "bq24152",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) "bq24153",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) "bq24153a",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) "bq24155",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) "bq24156",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) "bq24156a",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) "bq24157s",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) "bq24158",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) struct bq2415x_device {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) struct bq2415x_platform_data init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) struct power_supply *charger;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) struct power_supply_desc charger_desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) struct delayed_work work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) struct device_node *notify_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) struct notifier_block nb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) enum bq2415x_mode reported_mode;/* mode reported by hook function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) enum bq2415x_mode mode; /* currently configured mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) enum bq2415x_chip chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) const char *timer_error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) char *model;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) int autotimer; /* 1 - if driver automatically reset timer, 0 - not */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) int automode; /* 1 - enabled, 0 - disabled; -1 - not supported */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) int id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) /* each registered chip must have unique id */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) static DEFINE_IDR(bq2415x_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) static DEFINE_MUTEX(bq2415x_id_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) static DEFINE_MUTEX(bq2415x_timer_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) static DEFINE_MUTEX(bq2415x_i2c_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) /**** i2c read functions ****/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) /* read value from register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) static int bq2415x_i2c_read(struct bq2415x_device *bq, u8 reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) struct i2c_client *client = to_i2c_client(bq->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) struct i2c_msg msg[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) if (!client->adapter)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) msg[0].addr = client->addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) msg[0].flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) msg[0].buf = ®
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) msg[0].len = sizeof(reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) msg[1].addr = client->addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) msg[1].flags = I2C_M_RD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) msg[1].buf = &val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) msg[1].len = sizeof(val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) mutex_lock(&bq2415x_i2c_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) ret = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) mutex_unlock(&bq2415x_i2c_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) return val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) /* read value from register, apply mask and right shift it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) static int bq2415x_i2c_read_mask(struct bq2415x_device *bq, u8 reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) u8 mask, u8 shift)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) if (shift > 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) ret = bq2415x_i2c_read(bq, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) return (ret & mask) >> shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) /* read value from register and return one specified bit */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) static int bq2415x_i2c_read_bit(struct bq2415x_device *bq, u8 reg, u8 bit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) if (bit > 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) return bq2415x_i2c_read_mask(bq, reg, BIT(bit), bit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) /**** i2c write functions ****/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) /* write value to register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) static int bq2415x_i2c_write(struct bq2415x_device *bq, u8 reg, u8 val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) struct i2c_client *client = to_i2c_client(bq->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) struct i2c_msg msg[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) u8 data[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) data[0] = reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) data[1] = val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) msg[0].addr = client->addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) msg[0].flags = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) msg[0].buf = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) msg[0].len = ARRAY_SIZE(data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) mutex_lock(&bq2415x_i2c_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) ret = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) mutex_unlock(&bq2415x_i2c_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) /* i2c_transfer returns number of messages transferred */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) else if (ret != 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) return -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) /* read value from register, change it with mask left shifted and write back */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) static int bq2415x_i2c_write_mask(struct bq2415x_device *bq, u8 reg, u8 val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) u8 mask, u8 shift)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) if (shift > 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) ret = bq2415x_i2c_read(bq, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) ret &= ~mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) ret |= val << shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) return bq2415x_i2c_write(bq, reg, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) /* change only one bit in register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) static int bq2415x_i2c_write_bit(struct bq2415x_device *bq, u8 reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) bool val, u8 bit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) if (bit > 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) return bq2415x_i2c_write_mask(bq, reg, val, BIT(bit), bit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) /**** global functions ****/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) /* exec command function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) static int bq2415x_exec_command(struct bq2415x_device *bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) enum bq2415x_command command)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) switch (command) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) case BQ2415X_TIMER_RESET:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 1, BQ2415X_BIT_TMR_RST);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) case BQ2415X_OTG_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) return bq2415x_i2c_read_bit(bq, BQ2415X_REG_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) BQ2415X_BIT_OTG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) case BQ2415X_STAT_PIN_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) return bq2415x_i2c_read_bit(bq, BQ2415X_REG_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) BQ2415X_BIT_EN_STAT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) case BQ2415X_STAT_PIN_ENABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_STATUS, 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) BQ2415X_BIT_EN_STAT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) case BQ2415X_STAT_PIN_DISABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_STATUS, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) BQ2415X_BIT_EN_STAT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) case BQ2415X_CHARGE_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) return bq2415x_i2c_read_mask(bq, BQ2415X_REG_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) BQ2415X_MASK_STAT, BQ2415X_SHIFT_STAT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) case BQ2415X_BOOST_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) return bq2415x_i2c_read_bit(bq, BQ2415X_REG_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) BQ2415X_BIT_BOOST);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) case BQ2415X_FAULT_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) return bq2415x_i2c_read_mask(bq, BQ2415X_REG_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) BQ2415X_MASK_FAULT, BQ2415X_SHIFT_FAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) case BQ2415X_CHARGE_TERMINATION_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) return bq2415x_i2c_read_bit(bq, BQ2415X_REG_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) BQ2415X_BIT_TE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) case BQ2415X_CHARGE_TERMINATION_ENABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 1, BQ2415X_BIT_TE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) case BQ2415X_CHARGE_TERMINATION_DISABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) 0, BQ2415X_BIT_TE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) case BQ2415X_CHARGER_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) ret = bq2415x_i2c_read_bit(bq, BQ2415X_REG_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) BQ2415X_BIT_CE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) return ret > 0 ? 0 : 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) case BQ2415X_CHARGER_ENABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 0, BQ2415X_BIT_CE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) case BQ2415X_CHARGER_DISABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) 1, BQ2415X_BIT_CE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) case BQ2415X_HIGH_IMPEDANCE_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) return bq2415x_i2c_read_bit(bq, BQ2415X_REG_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) BQ2415X_BIT_HZ_MODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) case BQ2415X_HIGH_IMPEDANCE_ENABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 1, BQ2415X_BIT_HZ_MODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) case BQ2415X_HIGH_IMPEDANCE_DISABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 0, BQ2415X_BIT_HZ_MODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) case BQ2415X_BOOST_MODE_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) return bq2415x_i2c_read_bit(bq, BQ2415X_REG_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) BQ2415X_BIT_OPA_MODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) case BQ2415X_BOOST_MODE_ENABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 1, BQ2415X_BIT_OPA_MODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) case BQ2415X_BOOST_MODE_DISABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 0, BQ2415X_BIT_OPA_MODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) case BQ2415X_OTG_LEVEL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) return bq2415x_i2c_read_bit(bq, BQ2415X_REG_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) BQ2415X_BIT_OTG_PL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) case BQ2415X_OTG_ACTIVATE_HIGH:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 1, BQ2415X_BIT_OTG_PL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) case BQ2415X_OTG_ACTIVATE_LOW:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 0, BQ2415X_BIT_OTG_PL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) case BQ2415X_OTG_PIN_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) return bq2415x_i2c_read_bit(bq, BQ2415X_REG_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) BQ2415X_BIT_OTG_EN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) case BQ2415X_OTG_PIN_ENABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) 1, BQ2415X_BIT_OTG_EN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) case BQ2415X_OTG_PIN_DISABLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) return bq2415x_i2c_write_bit(bq, BQ2415X_REG_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 0, BQ2415X_BIT_OTG_EN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) case BQ2415X_VENDER_CODE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) return bq2415x_i2c_read_mask(bq, BQ2415X_REG_VENDER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) BQ2415X_MASK_VENDER, BQ2415X_SHIFT_VENDER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) case BQ2415X_PART_NUMBER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) return bq2415x_i2c_read_mask(bq, BQ2415X_REG_VENDER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) BQ2415X_MASK_PN, BQ2415X_SHIFT_PN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) case BQ2415X_REVISION:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) return bq2415x_i2c_read_mask(bq, BQ2415X_REG_VENDER,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) BQ2415X_MASK_REVISION, BQ2415X_SHIFT_REVISION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) return -EINVAL;
^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) /* detect chip type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) static enum bq2415x_chip bq2415x_detect_chip(struct bq2415x_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) struct i2c_client *client = to_i2c_client(bq->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) int ret = bq2415x_exec_command(bq, BQ2415X_PART_NUMBER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) switch (client->addr) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) case 0x6b:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) switch (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) if (bq->chip == BQ24151A)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) return bq->chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) return BQ24151;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) if (bq->chip == BQ24150A ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) bq->chip == BQ24152 ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) bq->chip == BQ24155)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) return bq->chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) return BQ24150;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) case 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) if (bq->chip == BQ24153A)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) return bq->chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) return BQ24153;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) return BQUNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) case 0x6a:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) switch (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) if (bq->chip == BQ24156A)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) return bq->chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) return BQ24156;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) case 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) if (bq->chip == BQ24157S)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) return bq->chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) return BQ24158;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) return BQUNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) return BQUNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) /* detect chip revision */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) static int bq2415x_detect_revision(struct bq2415x_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) int ret = bq2415x_exec_command(bq, BQ2415X_REVISION);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) int chip = bq2415x_detect_chip(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) if (ret < 0 || chip < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) switch (chip) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) case BQ24150:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) case BQ24150A:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) case BQ24151:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) case BQ24151A:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) case BQ24152:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) if (ret >= 0 && ret <= 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) case BQ24153:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) case BQ24153A:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) case BQ24156:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) case BQ24156A:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) case BQ24157S:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) case BQ24158:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) if (ret == 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) else if (ret == 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) case BQ24155:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) if (ret == 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) return 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) case BQUNKNOWN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) /* return chip vender code */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) static int bq2415x_get_vender_code(struct bq2415x_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) ret = bq2415x_exec_command(bq, BQ2415X_VENDER_CODE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) /* convert to binary */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) return (ret & 0x1) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) ((ret >> 1) & 0x1) * 10 +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) ((ret >> 2) & 0x1) * 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) /* reset all chip registers to default state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) static void bq2415x_reset_chip(struct bq2415x_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) bq2415x_i2c_write(bq, BQ2415X_REG_CURRENT, BQ2415X_RESET_CURRENT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) bq2415x_i2c_write(bq, BQ2415X_REG_VOLTAGE, BQ2415X_RESET_VOLTAGE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) bq2415x_i2c_write(bq, BQ2415X_REG_CONTROL, BQ2415X_RESET_CONTROL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) bq2415x_i2c_write(bq, BQ2415X_REG_STATUS, BQ2415X_RESET_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) bq->timer_error = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) /**** properties functions ****/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) /* set current limit in mA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) static int bq2415x_set_current_limit(struct bq2415x_device *bq, int mA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) if (mA <= 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) else if (mA <= 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) val = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) else if (mA <= 800)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) val = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) val = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) return bq2415x_i2c_write_mask(bq, BQ2415X_REG_CONTROL, val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) BQ2415X_MASK_LIMIT, BQ2415X_SHIFT_LIMIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) /* get current limit in mA */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) static int bq2415x_get_current_limit(struct bq2415x_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) ret = bq2415x_i2c_read_mask(bq, BQ2415X_REG_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) BQ2415X_MASK_LIMIT, BQ2415X_SHIFT_LIMIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) else if (ret == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) return 100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) else if (ret == 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) return 500;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) else if (ret == 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) return 800;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) else if (ret == 3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) return 1800;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) /* set weak battery voltage in mV */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) static int bq2415x_set_weak_battery_voltage(struct bq2415x_device *bq, int mV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) /* round to 100mV */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) if (mV <= 3400 + 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) else if (mV <= 3500 + 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) val = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) else if (mV <= 3600 + 50)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) val = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) val = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) return bq2415x_i2c_write_mask(bq, BQ2415X_REG_CONTROL, val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) BQ2415X_MASK_VLOWV, BQ2415X_SHIFT_VLOWV);
^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) /* get weak battery voltage in mV */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) static int bq2415x_get_weak_battery_voltage(struct bq2415x_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) ret = bq2415x_i2c_read_mask(bq, BQ2415X_REG_CONTROL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) BQ2415X_MASK_VLOWV, BQ2415X_SHIFT_VLOWV);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) return 100 * (34 + ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) /* set battery regulation voltage in mV */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) static int bq2415x_set_battery_regulation_voltage(struct bq2415x_device *bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) int mV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) int val = (mV/10 - 350) / 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) * According to datasheet, maximum battery regulation voltage is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) * 4440mV which is b101111 = 47.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) if (val < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) else if (val > 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) return bq2415x_i2c_write_mask(bq, BQ2415X_REG_VOLTAGE, val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) BQ2415X_MASK_VO, BQ2415X_SHIFT_VO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) /* get battery regulation voltage in mV */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) static int bq2415x_get_battery_regulation_voltage(struct bq2415x_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) int ret = bq2415x_i2c_read_mask(bq, BQ2415X_REG_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) BQ2415X_MASK_VO, BQ2415X_SHIFT_VO);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) return 10 * (350 + 2*ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) /* set charge current in mA (platform data must provide resistor sense) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) static int bq2415x_set_charge_current(struct bq2415x_device *bq, int mA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) if (bq->init_data.resistor_sense <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) val = (mA * bq->init_data.resistor_sense - 37400) / 6800;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) if (val < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) else if (val > 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) val = 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) return bq2415x_i2c_write_mask(bq, BQ2415X_REG_CURRENT, val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) BQ2415X_MASK_VI_CHRG | BQ2415X_MASK_RESET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) BQ2415X_SHIFT_VI_CHRG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) /* get charge current in mA (platform data must provide resistor sense) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) static int bq2415x_get_charge_current(struct bq2415x_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) if (bq->init_data.resistor_sense <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) ret = bq2415x_i2c_read_mask(bq, BQ2415X_REG_CURRENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) BQ2415X_MASK_VI_CHRG, BQ2415X_SHIFT_VI_CHRG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) return (37400 + 6800*ret) / bq->init_data.resistor_sense;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) /* set termination current in mA (platform data must provide resistor sense) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) static int bq2415x_set_termination_current(struct bq2415x_device *bq, int mA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) if (bq->init_data.resistor_sense <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) val = (mA * bq->init_data.resistor_sense - 3400) / 3400;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) if (val < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) else if (val > 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) val = 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) return bq2415x_i2c_write_mask(bq, BQ2415X_REG_CURRENT, val,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) BQ2415X_MASK_VI_TERM | BQ2415X_MASK_RESET,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) BQ2415X_SHIFT_VI_TERM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) /* get termination current in mA (platform data must provide resistor sense) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) static int bq2415x_get_termination_current(struct bq2415x_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) if (bq->init_data.resistor_sense <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) ret = bq2415x_i2c_read_mask(bq, BQ2415X_REG_CURRENT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) BQ2415X_MASK_VI_TERM, BQ2415X_SHIFT_VI_TERM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) return (3400 + 3400*ret) / bq->init_data.resistor_sense;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) /* set default value of property */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) #define bq2415x_set_default_value(bq, prop) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) int ret = 0; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) if (bq->init_data.prop != -1) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) ret = bq2415x_set_##prop(bq, bq->init_data.prop); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) if (ret < 0) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) return ret; \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) /* set default values of all properties */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) static int bq2415x_set_defaults(struct bq2415x_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) bq2415x_exec_command(bq, BQ2415X_BOOST_MODE_DISABLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) bq2415x_exec_command(bq, BQ2415X_CHARGER_DISABLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) bq2415x_exec_command(bq, BQ2415X_CHARGE_TERMINATION_DISABLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) bq2415x_set_default_value(bq, current_limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) bq2415x_set_default_value(bq, weak_battery_voltage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) bq2415x_set_default_value(bq, battery_regulation_voltage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) if (bq->init_data.resistor_sense > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) bq2415x_set_default_value(bq, charge_current);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) bq2415x_set_default_value(bq, termination_current);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) bq2415x_exec_command(bq, BQ2415X_CHARGE_TERMINATION_ENABLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) bq2415x_exec_command(bq, BQ2415X_CHARGER_ENABLE);
^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) /**** charger mode functions ****/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) /* set charger mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) static int bq2415x_set_mode(struct bq2415x_device *bq, enum bq2415x_mode mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) int charger = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726) int boost = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) if (mode == BQ2415X_MODE_BOOST)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729) boost = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) else if (mode != BQ2415X_MODE_OFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) charger = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) if (!charger)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734) ret = bq2415x_exec_command(bq, BQ2415X_CHARGER_DISABLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) if (!boost)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737) ret = bq2415x_exec_command(bq, BQ2415X_BOOST_MODE_DISABLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) switch (mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743) case BQ2415X_MODE_OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) dev_dbg(bq->dev, "changing mode to: Offline\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) ret = bq2415x_set_current_limit(bq, 100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) case BQ2415X_MODE_NONE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748) dev_dbg(bq->dev, "changing mode to: N/A\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) ret = bq2415x_set_current_limit(bq, 100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) case BQ2415X_MODE_HOST_CHARGER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) dev_dbg(bq->dev, "changing mode to: Host/HUB charger\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) ret = bq2415x_set_current_limit(bq, 500);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) case BQ2415X_MODE_DEDICATED_CHARGER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756) dev_dbg(bq->dev, "changing mode to: Dedicated charger\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) ret = bq2415x_set_current_limit(bq, 1800);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) case BQ2415X_MODE_BOOST: /* Boost mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) dev_dbg(bq->dev, "changing mode to: Boost\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761) ret = bq2415x_set_current_limit(bq, 100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) if (charger)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) ret = bq2415x_exec_command(bq, BQ2415X_CHARGER_ENABLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) else if (boost)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771) ret = bq2415x_exec_command(bq, BQ2415X_BOOST_MODE_ENABLE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) bq2415x_set_default_value(bq, weak_battery_voltage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) bq2415x_set_default_value(bq, battery_regulation_voltage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) bq->mode = mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) sysfs_notify(&bq->charger->dev.kobj, NULL, "mode");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) static bool bq2415x_update_reported_mode(struct bq2415x_device *bq, int mA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) enum bq2415x_mode mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) if (mA == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) mode = BQ2415X_MODE_OFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) else if (mA < 500)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) mode = BQ2415X_MODE_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) else if (mA < 1800)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795) mode = BQ2415X_MODE_HOST_CHARGER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797) mode = BQ2415X_MODE_DEDICATED_CHARGER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) if (bq->reported_mode == mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) bq->reported_mode = mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) static int bq2415x_notifier_call(struct notifier_block *nb,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) unsigned long val, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) struct bq2415x_device *bq =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) container_of(nb, struct bq2415x_device, nb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) struct power_supply *psy = v;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) union power_supply_propval prop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) if (val != PSY_EVENT_PROP_CHANGED)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) return NOTIFY_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) /* Ignore event if it was not send by notify_node/notify_device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) if (bq->notify_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) if (!psy->dev.parent ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) psy->dev.parent->of_node != bq->notify_node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) return NOTIFY_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) } else if (bq->init_data.notify_device) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) if (strcmp(psy->desc->name, bq->init_data.notify_device) != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) return NOTIFY_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) dev_dbg(bq->dev, "notifier call was called\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) ret = power_supply_get_property(psy, POWER_SUPPLY_PROP_CURRENT_MAX,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) &prop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) if (ret != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) return NOTIFY_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) if (!bq2415x_update_reported_mode(bq, prop.intval))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) return NOTIFY_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) /* if automode is not enabled do not tell about reported_mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839) if (bq->automode < 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) return NOTIFY_OK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) schedule_delayed_work(&bq->work, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) return NOTIFY_OK;
^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) /**** timer functions ****/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) /* enable/disable auto resetting chip timer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) static void bq2415x_set_autotimer(struct bq2415x_device *bq, int state)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) mutex_lock(&bq2415x_timer_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) if (bq->autotimer == state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855) mutex_unlock(&bq2415x_timer_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) bq->autotimer = state;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861) if (state) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) schedule_delayed_work(&bq->work, BQ2415X_TIMER_TIMEOUT * HZ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) bq2415x_exec_command(bq, BQ2415X_TIMER_RESET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) bq->timer_error = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) cancel_delayed_work_sync(&bq->work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) mutex_unlock(&bq2415x_timer_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) /* called by bq2415x_timer_work on timer error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873) static void bq2415x_timer_error(struct bq2415x_device *bq, const char *msg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) bq->timer_error = msg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) sysfs_notify(&bq->charger->dev.kobj, NULL, "timer");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877) dev_err(bq->dev, "%s\n", msg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) if (bq->automode > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) bq->automode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) bq2415x_set_mode(bq, BQ2415X_MODE_OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) bq2415x_set_autotimer(bq, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884) /* delayed work function for auto resetting chip timer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) static void bq2415x_timer_work(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) struct bq2415x_device *bq = container_of(work, struct bq2415x_device,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) work.work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) int boost;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) if (bq->automode > 0 && (bq->reported_mode != bq->mode)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) sysfs_notify(&bq->charger->dev.kobj, NULL, "reported_mode");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895) bq2415x_set_mode(bq, bq->reported_mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898) if (!bq->autotimer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) ret = bq2415x_exec_command(bq, BQ2415X_TIMER_RESET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) bq2415x_timer_error(bq, "Resetting timer failed");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) boost = bq2415x_exec_command(bq, BQ2415X_BOOST_MODE_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908) if (boost < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) bq2415x_timer_error(bq, "Unknown error");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) return;
^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) error = bq2415x_exec_command(bq, BQ2415X_FAULT_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) if (error < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915) bq2415x_timer_error(bq, "Unknown error");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) if (boost) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) switch (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) /* Non fatal errors, chip is OK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) case 0: /* No error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) case 6: /* Timer expired */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) dev_err(bq->dev, "Timer expired\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) case 3: /* Battery voltage too low */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) dev_err(bq->dev, "Battery voltage to low\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) /* Fatal errors, disable and reset chip */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) case 1: /* Overvoltage protection (chip fried) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) bq2415x_timer_error(bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) "Overvoltage protection (chip fried)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) case 2: /* Overload */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) bq2415x_timer_error(bq, "Overload");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) case 4: /* Battery overvoltage protection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) bq2415x_timer_error(bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) "Battery overvoltage protection");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) case 5: /* Thermal shutdown (too hot) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) bq2415x_timer_error(bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) "Thermal shutdown (too hot)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) case 7: /* N/A */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) bq2415x_timer_error(bq, "Unknown error");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) switch (error) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) /* Non fatal errors, chip is OK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) case 0: /* No error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956) case 2: /* Sleep mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) dev_err(bq->dev, "Sleep mode\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959) case 3: /* Poor input source */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) dev_err(bq->dev, "Poor input source\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) case 6: /* Timer expired */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963) dev_err(bq->dev, "Timer expired\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) case 7: /* No battery */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) dev_err(bq->dev, "No battery\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) /* Fatal errors, disable and reset chip */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) case 1: /* Overvoltage protection (chip fried) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) bq2415x_timer_error(bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) "Overvoltage protection (chip fried)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) case 4: /* Battery overvoltage protection */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) bq2415x_timer_error(bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976) "Battery overvoltage protection");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) case 5: /* Thermal shutdown (too hot) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) bq2415x_timer_error(bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) "Thermal shutdown (too hot)");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) schedule_delayed_work(&bq->work, BQ2415X_TIMER_TIMEOUT * HZ);
^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) /**** power supply interface code ****/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) static enum power_supply_property bq2415x_power_supply_props[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) /* TODO: maybe add more power supply properties */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) POWER_SUPPLY_PROP_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) POWER_SUPPLY_PROP_MODEL_NAME,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) static int bq2415x_power_supply_get_property(struct power_supply *psy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) enum power_supply_property psp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) union power_supply_propval *val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) struct bq2415x_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) switch (psp) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) case POWER_SUPPLY_PROP_STATUS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) ret = bq2415x_exec_command(bq, BQ2415X_CHARGE_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) else if (ret == 0) /* Ready */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) else if (ret == 1) /* Charge in progress */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011) val->intval = POWER_SUPPLY_STATUS_CHARGING;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) else if (ret == 2) /* Charge done */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) val->intval = POWER_SUPPLY_STATUS_FULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015) val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017) case POWER_SUPPLY_PROP_MODEL_NAME:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) val->strval = bq->model;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) return 0;
^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) static void bq2415x_power_supply_exit(struct bq2415x_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) bq->autotimer = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029) if (bq->automode > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) bq->automode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) cancel_delayed_work_sync(&bq->work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) power_supply_unregister(bq->charger);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) kfree(bq->model);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) /**** additional sysfs entries for power supply interface ****/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) /* show *_status entries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) static ssize_t bq2415x_sysfs_show_status(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) struct bq2415x_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) enum bq2415x_command command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) if (strcmp(attr->attr.name, "otg_status") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) command = BQ2415X_OTG_STATUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) else if (strcmp(attr->attr.name, "charge_status") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051) command = BQ2415X_CHARGE_STATUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) else if (strcmp(attr->attr.name, "boost_status") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053) command = BQ2415X_BOOST_STATUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) else if (strcmp(attr->attr.name, "fault_status") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) command = BQ2415X_FAULT_STATUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059) ret = bq2415x_exec_command(bq, command);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062) return sprintf(buf, "%d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) * set timer entry:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) * auto - enable auto mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) * off - disable auto mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) * (other values) - reset chip timer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) static ssize_t bq2415x_sysfs_set_timer(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) const char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074) size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) struct bq2415x_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) if (strncmp(buf, "auto", 4) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081) bq2415x_set_autotimer(bq, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) else if (strncmp(buf, "off", 3) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) bq2415x_set_autotimer(bq, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) ret = bq2415x_exec_command(bq, BQ2415X_TIMER_RESET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) /* show timer entry (auto or off) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) static ssize_t bq2415x_sysfs_show_timer(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) struct bq2415x_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) if (bq->timer_error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) return sprintf(buf, "%s\n", bq->timer_error);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) if (bq->autotimer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104) return sprintf(buf, "auto\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) return sprintf(buf, "off\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) * set mode entry:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) * auto - if automode is supported, enable it and set mode to reported
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) * none - disable charger and boost mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112) * host - charging mode for host/hub chargers (current limit 500mA)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) * dedicated - charging mode for dedicated chargers (unlimited current limit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) * boost - disable charger and enable boost mode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116) static ssize_t bq2415x_sysfs_set_mode(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) const char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) struct bq2415x_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) enum bq2415x_mode mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126) if (strncmp(buf, "auto", 4) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) if (bq->automode < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) bq->automode = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130) mode = bq->reported_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) } else if (strncmp(buf, "off", 3) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132) if (bq->automode > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) bq->automode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) mode = BQ2415X_MODE_OFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135) } else if (strncmp(buf, "none", 4) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) if (bq->automode > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) bq->automode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) mode = BQ2415X_MODE_NONE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) } else if (strncmp(buf, "host", 4) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140) if (bq->automode > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) bq->automode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142) mode = BQ2415X_MODE_HOST_CHARGER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) } else if (strncmp(buf, "dedicated", 9) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144) if (bq->automode > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) bq->automode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146) mode = BQ2415X_MODE_DEDICATED_CHARGER;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) } else if (strncmp(buf, "boost", 5) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148) if (bq->automode > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) bq->automode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) mode = BQ2415X_MODE_BOOST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151) } else if (strncmp(buf, "reset", 5) == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) bq2415x_reset_chip(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) bq2415x_set_defaults(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) if (bq->automode <= 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) bq->automode = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) mode = bq->reported_mode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) ret = bq2415x_set_mode(bq, mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165) return count;
^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) /* show mode entry (auto, none, host, dedicated or boost) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) static ssize_t bq2415x_sysfs_show_mode(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) struct bq2415x_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) ssize_t ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) if (bq->automode > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) ret += sprintf(buf+ret, "auto (");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) switch (bq->mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1181) case BQ2415X_MODE_OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1182) ret += sprintf(buf+ret, "off");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1183) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1184) case BQ2415X_MODE_NONE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1185) ret += sprintf(buf+ret, "none");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1186) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1187) case BQ2415X_MODE_HOST_CHARGER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1188) ret += sprintf(buf+ret, "host");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1189) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1190) case BQ2415X_MODE_DEDICATED_CHARGER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1191) ret += sprintf(buf+ret, "dedicated");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1192) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1193) case BQ2415X_MODE_BOOST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1194) ret += sprintf(buf+ret, "boost");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1195) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1196) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1197)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1198) if (bq->automode > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1199) ret += sprintf(buf+ret, ")");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1201) ret += sprintf(buf+ret, "\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1202) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1203) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1204)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1205) /* show reported_mode entry (none, host, dedicated or boost) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1206) static ssize_t bq2415x_sysfs_show_reported_mode(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1207) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1208) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1209) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1210) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1211) struct bq2415x_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1213) if (bq->automode < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1214) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1215)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1216) switch (bq->reported_mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1217) case BQ2415X_MODE_OFF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1218) return sprintf(buf, "off\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1219) case BQ2415X_MODE_NONE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1220) return sprintf(buf, "none\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1221) case BQ2415X_MODE_HOST_CHARGER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1222) return sprintf(buf, "host\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1223) case BQ2415X_MODE_DEDICATED_CHARGER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1224) return sprintf(buf, "dedicated\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1225) case BQ2415X_MODE_BOOST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1226) return sprintf(buf, "boost\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1228)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1229) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1231)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1232) /* directly set raw value to chip register, format: 'register value' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1233) static ssize_t bq2415x_sysfs_set_registers(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1234) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1235) const char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1236) size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1237) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1238) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1239) struct bq2415x_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1240) ssize_t ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1241) unsigned int reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1242) unsigned int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1243)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1244) if (sscanf(buf, "%x %x", ®, &val) != 2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1245) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1247) if (reg > 4 || val > 255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1248) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1250) ret = bq2415x_i2c_write(bq, reg, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1251) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1252) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1253) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1254) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1255)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1256) /* print value of chip register, format: 'register=value' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1257) static ssize_t bq2415x_sysfs_print_reg(struct bq2415x_device *bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1258) u8 reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1259) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1260) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1261) int ret = bq2415x_i2c_read(bq, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1263) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1264) return sprintf(buf, "%#.2x=error %d\n", reg, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1265) return sprintf(buf, "%#.2x=%#.2x\n", reg, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1266) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1267)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1268) /* show all raw values of chip register, format per line: 'register=value' */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1269) static ssize_t bq2415x_sysfs_show_registers(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1270) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1271) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1272) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1273) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1274) struct bq2415x_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1275) ssize_t ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1277) ret += bq2415x_sysfs_print_reg(bq, BQ2415X_REG_STATUS, buf+ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1278) ret += bq2415x_sysfs_print_reg(bq, BQ2415X_REG_CONTROL, buf+ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1279) ret += bq2415x_sysfs_print_reg(bq, BQ2415X_REG_VOLTAGE, buf+ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1280) ret += bq2415x_sysfs_print_reg(bq, BQ2415X_REG_VENDER, buf+ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1281) ret += bq2415x_sysfs_print_reg(bq, BQ2415X_REG_CURRENT, buf+ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1282) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1283) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1284)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1285) /* set current and voltage limit entries (in mA or mV) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1286) static ssize_t bq2415x_sysfs_set_limit(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1287) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1288) const char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1289) size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1290) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1291) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1292) struct bq2415x_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1293) long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1294) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1295)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1296) if (kstrtol(buf, 10, &val) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1297) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1299) if (strcmp(attr->attr.name, "current_limit") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1300) ret = bq2415x_set_current_limit(bq, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1301) else if (strcmp(attr->attr.name, "weak_battery_voltage") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1302) ret = bq2415x_set_weak_battery_voltage(bq, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1303) else if (strcmp(attr->attr.name, "battery_regulation_voltage") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1304) ret = bq2415x_set_battery_regulation_voltage(bq, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1305) else if (strcmp(attr->attr.name, "charge_current") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1306) ret = bq2415x_set_charge_current(bq, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1307) else if (strcmp(attr->attr.name, "termination_current") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1308) ret = bq2415x_set_termination_current(bq, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1309) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1310) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1312) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1313) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1314) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1315) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1317) /* show current and voltage limit entries (in mA or mV) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1318) static ssize_t bq2415x_sysfs_show_limit(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1319) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1320) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1321) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1322) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1323) struct bq2415x_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1324) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1326) if (strcmp(attr->attr.name, "current_limit") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1327) ret = bq2415x_get_current_limit(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1328) else if (strcmp(attr->attr.name, "weak_battery_voltage") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1329) ret = bq2415x_get_weak_battery_voltage(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1330) else if (strcmp(attr->attr.name, "battery_regulation_voltage") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1331) ret = bq2415x_get_battery_regulation_voltage(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1332) else if (strcmp(attr->attr.name, "charge_current") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1333) ret = bq2415x_get_charge_current(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1334) else if (strcmp(attr->attr.name, "termination_current") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1335) ret = bq2415x_get_termination_current(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1336) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1337) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1339) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1340) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1341) return sprintf(buf, "%d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1342) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1344) /* set *_enable entries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1345) static ssize_t bq2415x_sysfs_set_enable(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1346) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1347) const char *buf,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1348) size_t count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1349) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1350) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1351) struct bq2415x_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1352) enum bq2415x_command command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1353) long val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1354) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1356) if (kstrtol(buf, 10, &val) < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1357) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1359) if (strcmp(attr->attr.name, "charge_termination_enable") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1360) command = val ? BQ2415X_CHARGE_TERMINATION_ENABLE :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1361) BQ2415X_CHARGE_TERMINATION_DISABLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1362) else if (strcmp(attr->attr.name, "high_impedance_enable") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1363) command = val ? BQ2415X_HIGH_IMPEDANCE_ENABLE :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1364) BQ2415X_HIGH_IMPEDANCE_DISABLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1365) else if (strcmp(attr->attr.name, "otg_pin_enable") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1366) command = val ? BQ2415X_OTG_PIN_ENABLE :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1367) BQ2415X_OTG_PIN_DISABLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1368) else if (strcmp(attr->attr.name, "stat_pin_enable") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1369) command = val ? BQ2415X_STAT_PIN_ENABLE :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1370) BQ2415X_STAT_PIN_DISABLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1371) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1372) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1374) ret = bq2415x_exec_command(bq, command);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1375) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1376) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1377) return count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1378) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1379)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1380) /* show *_enable entries */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1381) static ssize_t bq2415x_sysfs_show_enable(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1382) struct device_attribute *attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1383) char *buf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1384) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1385) struct power_supply *psy = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1386) struct bq2415x_device *bq = power_supply_get_drvdata(psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1387) enum bq2415x_command command;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1388) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1390) if (strcmp(attr->attr.name, "charge_termination_enable") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1391) command = BQ2415X_CHARGE_TERMINATION_STATUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1392) else if (strcmp(attr->attr.name, "high_impedance_enable") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1393) command = BQ2415X_HIGH_IMPEDANCE_STATUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1394) else if (strcmp(attr->attr.name, "otg_pin_enable") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1395) command = BQ2415X_OTG_PIN_STATUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1396) else if (strcmp(attr->attr.name, "stat_pin_enable") == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1397) command = BQ2415X_STAT_PIN_STATUS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1398) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1399) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1400)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1401) ret = bq2415x_exec_command(bq, command);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1402) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1403) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1404) return sprintf(buf, "%d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1405) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1407) static DEVICE_ATTR(current_limit, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1408) bq2415x_sysfs_show_limit, bq2415x_sysfs_set_limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1409) static DEVICE_ATTR(weak_battery_voltage, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1410) bq2415x_sysfs_show_limit, bq2415x_sysfs_set_limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1411) static DEVICE_ATTR(battery_regulation_voltage, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1412) bq2415x_sysfs_show_limit, bq2415x_sysfs_set_limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1413) static DEVICE_ATTR(charge_current, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1414) bq2415x_sysfs_show_limit, bq2415x_sysfs_set_limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1415) static DEVICE_ATTR(termination_current, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1416) bq2415x_sysfs_show_limit, bq2415x_sysfs_set_limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1418) static DEVICE_ATTR(charge_termination_enable, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1419) bq2415x_sysfs_show_enable, bq2415x_sysfs_set_enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1420) static DEVICE_ATTR(high_impedance_enable, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1421) bq2415x_sysfs_show_enable, bq2415x_sysfs_set_enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1422) static DEVICE_ATTR(otg_pin_enable, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1423) bq2415x_sysfs_show_enable, bq2415x_sysfs_set_enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1424) static DEVICE_ATTR(stat_pin_enable, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1425) bq2415x_sysfs_show_enable, bq2415x_sysfs_set_enable);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1426)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1427) static DEVICE_ATTR(reported_mode, S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1428) bq2415x_sysfs_show_reported_mode, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1429) static DEVICE_ATTR(mode, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1430) bq2415x_sysfs_show_mode, bq2415x_sysfs_set_mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1431) static DEVICE_ATTR(timer, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1432) bq2415x_sysfs_show_timer, bq2415x_sysfs_set_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1434) static DEVICE_ATTR(registers, S_IWUSR | S_IRUGO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1435) bq2415x_sysfs_show_registers, bq2415x_sysfs_set_registers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1437) static DEVICE_ATTR(otg_status, S_IRUGO, bq2415x_sysfs_show_status, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1438) static DEVICE_ATTR(charge_status, S_IRUGO, bq2415x_sysfs_show_status, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1439) static DEVICE_ATTR(boost_status, S_IRUGO, bq2415x_sysfs_show_status, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1440) static DEVICE_ATTR(fault_status, S_IRUGO, bq2415x_sysfs_show_status, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1441)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1442) static struct attribute *bq2415x_sysfs_attrs[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1443) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1444) * TODO: some (appropriate) of these attrs should be switched to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1445) * use power supply class props.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1446) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1447) &dev_attr_current_limit.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1448) &dev_attr_weak_battery_voltage.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1449) &dev_attr_battery_regulation_voltage.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1450) &dev_attr_charge_current.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1451) &dev_attr_termination_current.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1452)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1453) &dev_attr_charge_termination_enable.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1454) &dev_attr_high_impedance_enable.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1455) &dev_attr_otg_pin_enable.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1456) &dev_attr_stat_pin_enable.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1457)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1458) &dev_attr_reported_mode.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1459) &dev_attr_mode.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1460) &dev_attr_timer.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1461)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1462) &dev_attr_registers.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1463)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1464) &dev_attr_otg_status.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1465) &dev_attr_charge_status.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1466) &dev_attr_boost_status.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1467) &dev_attr_fault_status.attr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1468) NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1469) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1470)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1471) ATTRIBUTE_GROUPS(bq2415x_sysfs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1472)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1473) static int bq2415x_power_supply_init(struct bq2415x_device *bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1474) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1475) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1476) int chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1477) char revstr[8];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1478) struct power_supply_config psy_cfg = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1479) .drv_data = bq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1480) .of_node = bq->dev->of_node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1481) .attr_grp = bq2415x_sysfs_groups,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1482) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1483)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1484) bq->charger_desc.name = bq->name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1485) bq->charger_desc.type = POWER_SUPPLY_TYPE_USB;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1486) bq->charger_desc.properties = bq2415x_power_supply_props;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1487) bq->charger_desc.num_properties =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1488) ARRAY_SIZE(bq2415x_power_supply_props);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1489) bq->charger_desc.get_property = bq2415x_power_supply_get_property;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1491) ret = bq2415x_detect_chip(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1492) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1493) chip = BQUNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1494) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1495) chip = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1496)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1497) ret = bq2415x_detect_revision(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1498) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1499) strcpy(revstr, "unknown");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1500) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1501) sprintf(revstr, "1.%d", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1503) bq->model = kasprintf(GFP_KERNEL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1504) "chip %s, revision %s, vender code %.3d",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1505) bq2415x_chip_name[chip], revstr,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1506) bq2415x_get_vender_code(bq));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1507) if (!bq->model) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1508) dev_err(bq->dev, "failed to allocate model name\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1509) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1510) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1511)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1512) bq->charger = power_supply_register(bq->dev, &bq->charger_desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1513) &psy_cfg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1514) if (IS_ERR(bq->charger)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1515) kfree(bq->model);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1516) return PTR_ERR(bq->charger);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1517) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1518)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1519) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1520) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1521)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1522) /* main bq2415x probe function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1523) static int bq2415x_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1524) const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1525) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1526) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1527) int num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1528) char *name = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1529) struct bq2415x_device *bq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1530) struct device_node *np = client->dev.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1531) struct bq2415x_platform_data *pdata = client->dev.platform_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1532) const struct acpi_device_id *acpi_id = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1533) struct power_supply *notify_psy = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1534) union power_supply_propval prop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1536) if (!np && !pdata && !ACPI_HANDLE(&client->dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1537) dev_err(&client->dev, "Neither devicetree, nor platform data, nor ACPI support\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1538) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1539) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1540)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1541) /* Get new ID for the new device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1542) mutex_lock(&bq2415x_id_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1543) num = idr_alloc(&bq2415x_id, client, 0, 0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1544) mutex_unlock(&bq2415x_id_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1545) if (num < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1546) return num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1547)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1548) if (id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1549) name = kasprintf(GFP_KERNEL, "%s-%d", id->name, num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1550) } else if (ACPI_HANDLE(&client->dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1551) acpi_id =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1552) acpi_match_device(client->dev.driver->acpi_match_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1553) &client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1554) if (!acpi_id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1555) dev_err(&client->dev, "failed to match device name\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1556) ret = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1557) goto error_1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1558) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1559) name = kasprintf(GFP_KERNEL, "%s-%d", acpi_id->id, num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1560) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1561) if (!name) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1562) dev_err(&client->dev, "failed to allocate device name\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1563) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1564) goto error_1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1565) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1566)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1567) bq = devm_kzalloc(&client->dev, sizeof(*bq), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1568) if (!bq) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1569) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1570) goto error_2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1571) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1572)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1573) i2c_set_clientdata(client, bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1574)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1575) bq->id = num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1576) bq->dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1577) if (id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1578) bq->chip = id->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1579) else if (ACPI_HANDLE(bq->dev))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1580) bq->chip = acpi_id->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1581) bq->name = name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1582) bq->mode = BQ2415X_MODE_OFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1583) bq->reported_mode = BQ2415X_MODE_OFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1584) bq->autotimer = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1585) bq->automode = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1587) if (np || ACPI_HANDLE(bq->dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1588) ret = device_property_read_u32(bq->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1589) "ti,current-limit",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1590) &bq->init_data.current_limit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1591) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1592) goto error_2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1593) ret = device_property_read_u32(bq->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1594) "ti,weak-battery-voltage",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1595) &bq->init_data.weak_battery_voltage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1596) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1597) goto error_2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1598) ret = device_property_read_u32(bq->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1599) "ti,battery-regulation-voltage",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1600) &bq->init_data.battery_regulation_voltage);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1601) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1602) goto error_2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1603) ret = device_property_read_u32(bq->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1604) "ti,charge-current",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1605) &bq->init_data.charge_current);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1606) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1607) goto error_2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1608) ret = device_property_read_u32(bq->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1609) "ti,termination-current",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1610) &bq->init_data.termination_current);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1611) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1612) goto error_2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1613) ret = device_property_read_u32(bq->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1614) "ti,resistor-sense",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1615) &bq->init_data.resistor_sense);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1616) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1617) goto error_2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1618) if (np)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1619) bq->notify_node = of_parse_phandle(np,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1620) "ti,usb-charger-detection", 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1621) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1622) memcpy(&bq->init_data, pdata, sizeof(bq->init_data));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1623) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1624)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1625) bq2415x_reset_chip(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1626)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1627) ret = bq2415x_power_supply_init(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1628) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1629) dev_err(bq->dev, "failed to register power supply: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1630) goto error_2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1631) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1633) ret = bq2415x_set_defaults(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1634) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1635) dev_err(bq->dev, "failed to set default values: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1636) goto error_3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1637) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1638)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1639) if (bq->notify_node || bq->init_data.notify_device) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1640) bq->nb.notifier_call = bq2415x_notifier_call;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1641) ret = power_supply_reg_notifier(&bq->nb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1642) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1643) dev_err(bq->dev, "failed to reg notifier: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1644) goto error_3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1645) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1646)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1647) bq->automode = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1648) dev_info(bq->dev, "automode supported, waiting for events\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1649) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1650) bq->automode = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1651) dev_info(bq->dev, "automode not supported\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1652) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1653)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1654) /* Query for initial reported_mode and set it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1655) if (bq->nb.notifier_call) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1656) if (np) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1657) notify_psy = power_supply_get_by_phandle(np,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1658) "ti,usb-charger-detection");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1659) if (IS_ERR(notify_psy))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1660) notify_psy = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1661) } else if (bq->init_data.notify_device) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1662) notify_psy = power_supply_get_by_name(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1663) bq->init_data.notify_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1664) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1665) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1666) if (notify_psy) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1667) ret = power_supply_get_property(notify_psy,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1668) POWER_SUPPLY_PROP_CURRENT_MAX, &prop);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1669) power_supply_put(notify_psy);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1670)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1671) if (ret == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1672) bq2415x_update_reported_mode(bq, prop.intval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1673) bq2415x_set_mode(bq, bq->reported_mode);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1674) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1675) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1676)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1677) INIT_DELAYED_WORK(&bq->work, bq2415x_timer_work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1678) bq2415x_set_autotimer(bq, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1679)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1680) dev_info(bq->dev, "driver registered\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1681) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1682)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1683) error_3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1684) bq2415x_power_supply_exit(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1685) error_2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1686) if (bq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1687) of_node_put(bq->notify_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1688) kfree(name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1689) error_1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1690) mutex_lock(&bq2415x_id_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1691) idr_remove(&bq2415x_id, num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1692) mutex_unlock(&bq2415x_id_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1693)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1694) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1695) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1696)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1697) /* main bq2415x remove function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1698)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1699) static int bq2415x_remove(struct i2c_client *client)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1700) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1701) struct bq2415x_device *bq = i2c_get_clientdata(client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1702)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1703) if (bq->nb.notifier_call)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1704) power_supply_unreg_notifier(&bq->nb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1705)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1706) of_node_put(bq->notify_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1707) bq2415x_power_supply_exit(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1708)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1709) bq2415x_reset_chip(bq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1710)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1711) mutex_lock(&bq2415x_id_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1712) idr_remove(&bq2415x_id, bq->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1713) mutex_unlock(&bq2415x_id_mutex);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1715) dev_info(bq->dev, "driver unregistered\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1716)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1717) kfree(bq->name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1719) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1720) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1721)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1722) static const struct i2c_device_id bq2415x_i2c_id_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1723) { "bq2415x", BQUNKNOWN },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1724) { "bq24150", BQ24150 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1725) { "bq24150a", BQ24150A },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1726) { "bq24151", BQ24151 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1727) { "bq24151a", BQ24151A },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1728) { "bq24152", BQ24152 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1729) { "bq24153", BQ24153 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1730) { "bq24153a", BQ24153A },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1731) { "bq24155", BQ24155 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1732) { "bq24156", BQ24156 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1733) { "bq24156a", BQ24156A },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1734) { "bq24157s", BQ24157S },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1735) { "bq24158", BQ24158 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1736) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1737) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1738) MODULE_DEVICE_TABLE(i2c, bq2415x_i2c_id_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1739)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1740) #ifdef CONFIG_ACPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1741) static const struct acpi_device_id bq2415x_i2c_acpi_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1742) { "BQ2415X", BQUNKNOWN },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1743) { "BQ241500", BQ24150 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1744) { "BQA24150", BQ24150A },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1745) { "BQ241510", BQ24151 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1746) { "BQA24151", BQ24151A },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1747) { "BQ241520", BQ24152 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1748) { "BQ241530", BQ24153 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1749) { "BQA24153", BQ24153A },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1750) { "BQ241550", BQ24155 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1751) { "BQ241560", BQ24156 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1752) { "BQA24156", BQ24156A },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1753) { "BQS24157", BQ24157S },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1754) { "BQ241580", BQ24158 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1755) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1756) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1757) MODULE_DEVICE_TABLE(acpi, bq2415x_i2c_acpi_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1758) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1759)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1760) #ifdef CONFIG_OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1761) static const struct of_device_id bq2415x_of_match_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1762) { .compatible = "ti,bq24150" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1763) { .compatible = "ti,bq24150a" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1764) { .compatible = "ti,bq24151" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1765) { .compatible = "ti,bq24151a" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1766) { .compatible = "ti,bq24152" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1767) { .compatible = "ti,bq24153" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1768) { .compatible = "ti,bq24153a" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1769) { .compatible = "ti,bq24155" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1770) { .compatible = "ti,bq24156" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1771) { .compatible = "ti,bq24156a" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1772) { .compatible = "ti,bq24157s" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1773) { .compatible = "ti,bq24158" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1774) {},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1775) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1776) MODULE_DEVICE_TABLE(of, bq2415x_of_match_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1777) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1778)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1779) static struct i2c_driver bq2415x_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1780) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1781) .name = "bq2415x-charger",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1782) .of_match_table = of_match_ptr(bq2415x_of_match_table),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1783) .acpi_match_table = ACPI_PTR(bq2415x_i2c_acpi_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1784) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1785) .probe = bq2415x_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1786) .remove = bq2415x_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1787) .id_table = bq2415x_i2c_id_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1788) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1789) module_i2c_driver(bq2415x_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1790)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1791) MODULE_AUTHOR("Pali Rohár <pali@kernel.org>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1792) MODULE_DESCRIPTION("bq2415x charger driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1793) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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