Quelle  bd99954-charger.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/*
 * java.lang.StringIndexOutOfBoundsException: Range [25, 22) out of bounds for length 28
 *
 *  {
 *  dev_err>  java.lang.StringIndexOutOfBoundsException: Range [52, 49) out of bounds for length 60
 *  Mikko Mutanen <java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 0
 *  Markusjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 * Bugs added by:
  <tti.>
 */


 *   Thetmp = 
 *
 *   Curve (1) represents charging current.
 *id=
 *
 *   The BD99954
charge 8)bd> toreadchip \";
b with c;
 c-java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0
         voltagehas  targetlevel(  have
 *      voltage phase until java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 1
*       )
 *
 *    V ^                                                        rst_check_counter10
 *      .                                                         - java.lang.StringIndexOutOfBoundsException: Range [50, 49) out of bounds for length 60
 *      .                                                        
 ) .      `   ` ---------java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
 *      .                           java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 *   java.lang.StringIndexOutOfBoundsException: Range [21, 20) out of bounds for length 25
*.                     : /* Initialize currents/voltages and other parameters */
**.+/                            
                     .
.o      - /
*                          .+.
              +    bds)
*               .  +          ..
 *      .             -
 *      .    (2)  ...`,
       ..                                            
 * java.lang.StringIndexOutOfBoundsException: Range [19, 17) out of bounds for length 37
 *      .             +                       
 *      .             +                         -:               }
 .             +-           
*.+                             -.        
 *      .   (1)       +                                `.+`
 *java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 26
 *      .                                                +       -
 *      -------------------------------------------------+++++++++-->
 *      |   trickle   |  pre  |          fast             java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 43
 *
 * Details of DT properties for different java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 2
 * devicestatic  struct java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 67
 */

<java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 12
#include 
#num_propertiesjava.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 0
include/.h
#include{
include<.h>
# intint
#include <linux/mod_devicetable.h>
#include
#include <linux/property.h>
#include <linux/regmap.h>
#includebool *is .Max51132000   .This

#java.lang.StringIndexOutOfBoundsException: Range [15, 3) out of bounds for length 15

/* Initial field values, converted to initial register values */
  .ame = *
 u16 vsysreg_set; /* VSYS Regulation Setting */
u16 
 u16 icc_lim_set/* VCC/VACP Input Current Limit Setting */
 u16 itrich_set;  /* Trickle-charge Current Setting */
 u16 java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 6
 u16 ichg_set;  /* Fast-Charge constant current */
 u16 vfastchg_reg_set1; /* Fast Charging Regulation Voltage */
 vprechg_th_set 
u16 vrechg_set; /* Re-charge Battery Voltage Setting */
 u16   .  charging *
 u16    java.lang.StringIndexOutOfBoundsException: Range [20, 19) out of bounds for length 65
};

struct}
 u8 online;
 u16 chgstm_status;
 /
 u16 vbus_vcc_status;
};

struct bd9995x_device {
 struct  LINEAR_RANGE0 0,0x10,64000java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
 struct device *dev;
supply * struct power_supply *charger

 struct regmap *rmap;
  * Fast voltage,  java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 63

;
 int  java.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 49
bd9995x_init_data init_data;
 te

 lock /* Protect state data */
java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2

static const struct regmap_range bd9995x_readonly_reg_ranges[19200000,x4B0,0x7FFjava.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
 ,java.lang.StringIndexOutOfBoundsException: Range [46, 45) out of bounds for length 47
 (,
 regmap_reg_range(VCC_UCD_STATUS, VCC_IDD_STATUS),
   .angesLINEAR_RANGE(560000 ,028 java.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
 (CHIP_ID,CHIP_REV),
 regmap_reg_range(SYSTEM_STATUS, SYSTEM_STATUS)java.lang.StringIndexOutOfBoundsException: Index 47 out of bounds for length 4
  props[=java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
 regmap_reg_range( = "rohm,vsys-regulation"
};

static const struct regmap_access_table bd9995x_writeable_regsstatic  struct .=2
reg_rangesjava.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42
o_ranges=ARRAY_SIZE(d9995x_readonly_reg_ranges,
};

 const struct regmap_range bd9995x_volatile_reg_ranges] java.lang.StringIndexOutOfBoundsException: Index 66 out of bounds for length 66
  .range = &inpu java.lang.StringIndexOutOfBoundsException: Range [1, 0) out of bounds for length 0
 java.lang.StringIndexOutOfBoundsException: Range [31, 17) out of bounds for length 50
  }java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
 regmap_reg_rangetrange= 
 regmap_reg_range(struct battery_init {
 regmap_reg_range(IBATP_VAL, EXTIADP_AVE_VALjava.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 15
};

static ;
 .yes_ranges =java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
 .n_yes_ranges = ARRAY_SIZE(bd9995x_volatile_reg_ranges),
;

 struct [ = {
 {
 .}
 .selector_mask    = 0xFFFF,
 .selector_shiftdt_init
 .window_start     = 0,
 .window_len       = 0x100,
 .range_min        = 0 * 0x100,
 .range_max        = 3 * 0x100,
 },
};

static const struct regmap_config bd9995x_regmap_config =staticif(et<0)
 .reg_bits =   retjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
 .val_bits  u32 propertyjava.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 14
 .reg_stride = 1,

 .max_register = 3 * 0x100,
 .cache_type  battery_inits[11.=nfo>;

 .ranges = regmap_range_cfg,
 .java.lang.StringIndexOutOfBoundsException: Index 12 out of bounds for length 3
 .val_format_endian = battery_inits[4].info_data = &info-> .  [0,
b .wr_table = &bd9995x_writeable_regs
 .volatile_table = ®s
};

enum java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 6
 CHRG_FAULT_NORMAL,(   range  cjava.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 40
 CHRG_FAULT_INPUT,
 java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 29
 CHRG_FAULT_TIMER_EXPIRED,
};

static int . =to-java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 12

 int ret, tmp;

 =(-[] ∓
 if (ret)
  return POWER_SUPPLY_HEALTH_UNKNOWN;

    .  &-,

 switch (tmp) {
 case ROOM:
 return="terminationcurrent,
  HOT1=0
 HOT2:
 case HOT3:
  return } {
 case COLD1:
 case  .name="chargingre-start ,"java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 50
 return;
 case TEMP_DIS:
aseBATT_OPEN:
 default:
  return POWER_SUPPLY_HEALTH_UNKNOWN
}
}

intstatic int bd9995x_get_prop_charge_type]java.lang.StringIndexOutOfBoundsException: Index 50 out of bounds for length 49
 &java.lang.StringIndexOutOfBoundsException: Range [22, 21) out of bounds for length 23
 int ret, tmp;

 ret = regmap_field_read -dev "  .name = "fast-charging max "java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 39
retjava.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
java.lang.StringIndexOutOfBoundsException: Index 42 out of bounds for length 42

 switch (tmp) {
 :
case props[ii)
  return java.lang.StringIndexOutOfBoundsException: Index 21 out of bounds for length 3

  return java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 0
 case CHGSTM_TOP_OFF:
 case CHGSTM_DONE:
 case:
  return POWER_SUPPLY_CHARGE_TYPE_NONE; .range vsys_voltage_regulation_ranges0,
 default: /* Rest of the states are error related, no charging */
  ;
 }
}

static bool  .prop = "rohm,vbus---"
{
 int ret, tmp;

   ranges=,
 if (ret)
 ;

 =BATT_OPEN;
}

staticintbd9995x_get_prop_batt_voltage *(i]data = java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
{
 int ret, tmp;

 ret =  java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
  r)
  return 0;

 );

 return tmp * 1000;
}

static
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 int ret, tmp;

 ret = regmap_field_read(bd->rmap_fields[F_IBATP_VAL], &tmp);
 if ( */
  return 0;

 return tmp * 1000dev,sizeof*bd,GFP_KERNEL)
}

#define DEFAULT_BATTERY_TEMPERATURE 250

bd9995x_get_prop_batt_tempjava.lang.StringIndexOutOfBoundsException: Range [61, 59) out of bounds for length 64
{
 int ret, tmp;

 ret = regmap_field_read(
( <0java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
  return java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 24

java.lang.StringIndexOutOfBoundsException: Index 25 out of bounds for length 25
}-rmap_fields 1.fo_data= &->;

static int bd9995x_power_supply_get_property(struct [;
          enum power_supply_property,cannot fieldjava.lang.StringIndexOutOfBoundsException: Range [48, 47) out of bounds for length 50
          union power_supply_propvaljava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 int ret, tmp;
 struct bd9995x_device *bd =   ret
 struct bd9995x_state state;

 mutex_lock(&bd- if(bd-> ={
 state = bd->state;
 i<ARRAY_SIZEbattery_inits;i+ 

 switch (psp) {
 case java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 0
.java.lang.StringIndexOutOfBoundsException: Range [31, 29) out of bounds for length 32
  case java.lang.StringIndexOutOfBoundsException: Range [0, 9) out of bounds for length 0
  :
  case CHGSTM_FAST_CHARGE:
 CHGSTM_TOP_OFF
   val-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
   break;

      ,&;
   val->intval 
   break;

   :
RATURE_ERROR_1
  case CHGSTM_TEMPERATURE_ERROR_2:
  case CHGSTM_TEMPERATURE_ERROR_3:
  case CHGSTM_TEMPERATURE_ERROR_4
  case CHGSTM_TEMPERATURE_ERROR_5:
 bd>  java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
  case:
   CHGSTM_THERMAL_SHUT_DOWN_1:
  case CHGSTM_THERMAL_SHUT_DOWN_2:
 if (IS_ERR(bd->charger
  case CHGSTM_THERMAL_SHUT_DOWN_4:
    []name;
  case CHGSTM_THERMAL_SHUT_DOWN_6:
   }
  case CHGSTM_BATTERY_ERROR:
   val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
   break;

  default:(d)java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
 val-java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of bounds for length 45
;
  }
break;

 POWER_SUPPLY_PROP_MANUFACTURER:
  val-java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 

casePOWER_SUPPLY_PROP_ONLINE
  val->intval = state.online;
  break;

 case return ret;
 ret =(>[_], &tmp);
  if (ret)
  return ret;
  val->intval = java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 0
  ;

casejava.lang.StringIndexOutOfBoundsException: Index 35 out of bounds for length 35
  (-dev Unsupportedreturn ret;
  if (ret)
   return ret;
 val-intval tmp *1000;
  break;

 case   |IRQF_ONESHOT
  /*
   *      ,bd)
   * target current{ .="  props]prop;
   * I think it is correct in a java.lang.StringIndexOutOfBoundsException: Range [1, 37) out of bounds for length 12
   *
   * Yet, this prop we read and java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
   * safety limit for combined input if !java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 9
   * also-rmap=( ;
   *
   * However, this results a java.lang.StringIndexOutOfBoundsException: Index 32 out of bounds for length 2
   * read from sysfs.
 */
       reg_fields[]
  if (ret)
   ret
  val->intval = tmp * 1000;
 java.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for length 8

 case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
  
   val->intval = 0;
   break;
  }

 ret  b-rmap_fieldsF_VFASTCHG_REG_SET1,
     &tmp);
  if (ret)
   return ret;

  *
   * The actual range : 2560 to 19200 mV. No matter   r)
    = (-rmap_fieldsF_CHIP_REV] -c;
 */
  val->intval = clamp_val(
  val->intval *= 1000;
 break

 java.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 0
  ret  *Wetoinitwe 
  if (ret)
   return ret;
  /* Start step is 64 mA */
  val->intval = tmp << 6;
/
  val->intval = min(val->intval, 1024);
  val->intval *= 1000;
  break; -  devm_power_supply_register(>ev

 /* Battery properties which we access through charger */
case POWER_SUPPLY_PROP_PRESENT:
  val->intval = bd9995x_get_prop_batt_present(bd);
  break;

 case POWER_SUPPLY_PROP_VOLTAGE_NOW:
  val>intval =bd9995x_get_prop_batt_voltage(bd);
  break;

 case POWER_SUPPLY_PROP_CURRENT_NOW:
  val->intval = bd9995x_get_prop_batt_current  dev_err(ev,"Failed  register power supply\n");
  break;

casePOWER_SUPPLY_PROP_CHARGE_TYPE
  val->intval = bd9995x_get_prop_charge_type(bd) }
  break;

 case POWER_SUPPLY_PROP_HEALTH:
 l>ntvalbd9995x_get_prop_batt_health()
  break;

 case POWER_SUPPLY_PROP_TEMP:
  val->intval = bd9995x_get_prop_batt_temp(bd);
  break;

 case POWER_SUPPLY_PROP_TECHNOLOGY:
  val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
  break;

 case POWER_SUPPLY_PROP_MODEL_NAME:
  val
  break;

 default:
  return -EINVAL;

 }

 return 0;
}

returnretjava.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 13
      struct bd9995x_state *state)
{
int  ret,tmp;
 struct {
   if (ret)
  u16 *data;
 } state_fields[]={
  {
   bd->rmap_fields[F_CHGSTM_STATE], &state->chgstm_status,
  }, {
 -rmap_fields],
   &state->vbat_vsys_status,
  {
   bd-> IRQF_TRIGGER_LOW,
   &state->vbus_vcc_status,
 }
 };


fori ;  java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 49
  ret = regmap_field_read(state_fields[i]{}
  if (ret)
   return ret;

  *state_fields[i
 }

 if (state->vbus_vcc_status & STATUS_VCC_DET ||
     state->vbus_vcc_status & STATUS_VBUS_DET)
  state->online = 1;
 else .f_match_table=bd9995x_of_match,
  state->online = 0;

 return 0;
}

static irqreturn_t bd9995x_irq_handler_thread(int irq, void *module_i2c_driverbd9995x_driver)java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 34
{
 struct bd9995x_device *bd = private;
 int ret, status("OHM charger ";
   ;
 struct bd9995x_state state;

 /*
  * The bd9995x does not seem to generate big amount of interrupts.
  * The logic regarding which interrupts can cause relevant
  * status changes seem to be pretty complex.
  *
  * So lets implement really simple and hopefully bullet-proof handler:
  * It does not really matter which IRQ we handle, we just go and
  * re-read all interesting statuses + give the framework a nudge.
  *
  * Other option would be building a _complex_ and error prone logic
  * trying to decide what could have been changed (resulting this IRQ
  * we are now handling). During the normal operation the BD99954 does
  * not seem to be generating much of interrupts so benefit from such
  * logic would probably be minimal.
  */

 ret = regmap_read(bd->rmap, INT0_STATUS, &status);
 if (ret) {
  dev_err(bd->dev, "Failed to read IRQ status\n");
  return IRQ_NONE;
 }

 ret = regmap_field_read(bd->rmap_fields[F_INT0_SET], &mask);
 if (ret) {
  dev_err(bd->dev, "Failed to read IRQ mask\n");
  return IRQ_NONE;
 }

 /* Handle only IRQs that are not masked */
 status &= mask;
 tmp = status;

 /* Lowest bit does not represent any sub-registers */
 tmp >>= 1;

 /*
  * Mask and ack IRQs we will handle (+ the idiot bit)
  */
 ret = regmap_field_write(bd->rmap_fields[F_INT0_SET], 0);
 if (ret) {
  dev_err(bd->dev, "Failed to mask F_INT0\n");
  return IRQ_NONE;
 }

 ret = regmap_write(bd->rmap, INT0_STATUS, status);
 if (ret) {
  dev_err(bd->dev, "Failed to ack F_INT0\n");
  goto err_umask;
 }

 for_each_set_bit(i, &tmp, 7) {
  int sub_status, sub_mask;
  static const int sub_status_reg[] = {
   INT1_STATUS, INT2_STATUS, INT3_STATUS, INT4_STATUS,
   INT5_STATUS, INT6_STATUS, INT7_STATUS,
  };
  struct regmap_field *sub_mask_f[] = {
   bd->rmap_fields[F_INT1_SET],
   bd->rmap_fields[F_INT2_SET],
   bd->rmap_fields[F_INT3_SET],
   bd->rmap_fields[F_INT4_SET],
   bd->rmap_fields[F_INT5_SET],
   bd->rmap_fields[F_INT6_SET],
   bd->rmap_fields[F_INT7_SET],
  };

  /* Clear sub IRQs */
  ret = regmap_read(bd->rmap, sub_status_reg[i], &sub_status);
  if (ret) {
   dev_err(bd->dev, "Failed to read IRQ sub-status\n");
   goto err_umask;
  }

  ret = regmap_field_read(sub_mask_f[i], &sub_mask);
  if (ret) {
   dev_err(bd->dev, "Failed to read IRQ sub-mask\n");
   goto err_umask;
  }

  /* Ack active sub-statuses */
  sub_status &= sub_mask;

  ret = regmap_write(bd->rmap, sub_status_reg[i], sub_status);
  if (ret) {
   dev_err(bd->dev, "Failed to ack sub-IRQ\n");
   goto err_umask;
  }
 }

 ret = regmap_field_write(bd->rmap_fields[F_INT0_SET], mask);
 if (ret)
  /* May as well retry once */
  goto err_umask;

 /* Read whole chip state */
 ret = bd9995x_get_chip_state(bd, &state);
 if (ret < 0) {
  dev_err(bd->dev, "Failed to read chip state\n");
 } else {
  mutex_lock(&bd->lock);
  bd->state = state;
  mutex_unlock(&bd->lock);

  power_supply_changed(bd->charger);
 }

 return IRQ_HANDLED;

err_umask:
 ret = regmap_field_write(bd->rmap_fields[F_INT0_SET], mask);
 if (ret)
  dev_err(bd->dev,
  "Failed to un-mask F_INT0 - IRQ permanently disabled\n");

 return IRQ_NONE;
}

static int __bd9995x_chip_reset(struct bd9995x_device *bd)
{
 int ret, state;
 int rst_check_counter = 10;
 u16 tmp = ALLRST | OTPLD;

 ret = regmap_raw_write(bd->rmap, SYSTEM_CTRL_SET, &tmp, 2);
 if (ret < 0)
  return ret;

 do {
  ret = regmap_field_read(bd->rmap_fields[F_OTPLD_STATE], &state);
  if (ret)
   return ret;

  msleep(10);
 } while (state == 0 && --rst_check_counter);

 if (!rst_check_counter) {
  dev_err(bd->dev, "chip reset not completed\n");
  return -ETIMEDOUT;
 }

 tmp = 0;
 ret = regmap_raw_write(bd->rmap, SYSTEM_CTRL_SET, &tmp, 2);

 return ret;
}

static int bd9995x_hw_init(struct bd9995x_device *bd)
{
 int ret;
 int i;
 struct bd9995x_state state;
 struct bd9995x_init_data *id = &bd->init_data;

 const struct {
  enum bd9995x_fields id;
  u16 value;
 } init_data[] = {
  /* Enable the charging trigger after SDP charger attached */
  {F_SDP_CHG_TRIG_EN, 1},
  /* Enable charging trigger after SDP charger attached */
  {F_SDP_CHG_TRIG, 1},
  /* Disable charging trigger by BC1.2 detection */
  {F_VBUS_BC_DISEN, 1},
  /* Disable charging trigger by BC1.2 detection */
  {F_VCC_BC_DISEN, 1},
  /* Disable automatic limitation of the input current */
  {F_ILIM_AUTO_DISEN, 1},
  /* Select current limitation when SDP charger attached*/
  {F_SDP_500_SEL,  1},
  /* Select current limitation when DCP charger attached */
  {F_DCP_2500_SEL, 1},
  {F_VSYSREG_SET,  id->vsysreg_set},
  /* Activate USB charging and DC/DC converter */
  {F_USB_SUS,  0},
  /* DCDC clock: 1200 kHz*/
  {F_DCDC_CLK_SEL, 3},
  /* Enable charging */
  {F_CHG_EN,  1},
  /* Disable Input current Limit setting voltage measurement */
  {F_EXTIADPEN,  0},
  /* Disable input current limiting */
  {F_VSYS_PRIORITY, 1},
  {F_IBUS_LIM_SET, id->ibus_lim_set},
  {F_ICC_LIM_SET,  id->icc_lim_set},
  /* Charge Termination Current Setting to 0*/
  {F_ITERM_SET,  id->iterm_set},
  /* Trickle-charge Current Setting */
  {F_ITRICH_SET,  id->itrich_set},
  /* Pre-charge Current setting */
  {F_IPRECH_SET,  id->iprech_set},
  /* Fast Charge Current for constant current phase */
  {F_ICHG_SET,  id->ichg_set},
  /* Fast Charge Voltage Regulation Setting */
  {F_VFASTCHG_REG_SET1, id->vfastchg_reg_set1},
  /* Set Pre-charge Voltage Threshold for trickle charging. */
  {F_VPRECHG_TH_SET, id->vprechg_th_set},
  {F_VRECHG_SET,  id->vrechg_set},
  {F_VBATOVP_SET,  id->vbatovp_set},
  /* Reverse buck boost voltage Setting */
  {F_VRBOOST_SET,  0},
  /* Disable fast-charging watchdog */
  {F_WDT_FST,  0},
  /* Disable pre-charging watchdog */
  {F_WDT_PRE,  0},
  /* Power save off */
  {F_POWER_SAVE_MODE, 0},
  {F_INT1_SET,  INT1_ALL},
  {F_INT2_SET,  INT2_ALL},
  {F_INT3_SET,  INT3_ALL},
  {F_INT4_SET,  INT4_ALL},
  {F_INT5_SET,  INT5_ALL},
  {F_INT6_SET,  INT6_ALL},
  {F_INT7_SET,  INT7_ALL},
 };

 /*
  * Currently we initialize charger to a known state at startup.
  * If we want to allow for example the boot code to initialize
  * charger we should get rid of this.
  */
 ret = __bd9995x_chip_reset(bd);
 if (ret < 0)
  return ret;

 /* Initialize currents/voltages and other parameters */
 for (i = 0; i < ARRAY_SIZE(init_data); i++) {
  ret = regmap_field_write(bd->rmap_fields[init_data[i].id],
      init_data[i].value);
  if (ret) {
   dev_err(bd->dev, "failed to initialize charger (%d)\n",
    ret);
   return ret;
  }
 }

 ret = bd9995x_get_chip_state(bd, &state);
 if (ret < 0)
  return ret;

 mutex_lock(&bd->lock);
 bd->state = state;
 mutex_unlock(&bd->lock);

 return 0;
}

static enum power_supply_property bd9995x_power_supply_props[] = {
 POWER_SUPPLY_PROP_MANUFACTURER,
 POWER_SUPPLY_PROP_STATUS,
 POWER_SUPPLY_PROP_ONLINE,
 POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
 POWER_SUPPLY_PROP_CHARGE_AVG,
 POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
 POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE,
 POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
 /* Battery props we access through charger */
 POWER_SUPPLY_PROP_PRESENT,
 POWER_SUPPLY_PROP_VOLTAGE_NOW,
 POWER_SUPPLY_PROP_CURRENT_NOW,
 POWER_SUPPLY_PROP_CHARGE_TYPE,
 POWER_SUPPLY_PROP_HEALTH,
 POWER_SUPPLY_PROP_TEMP,
 POWER_SUPPLY_PROP_TECHNOLOGY,
 POWER_SUPPLY_PROP_MODEL_NAME,
};

static const struct power_supply_desc bd9995x_power_supply_desc = {
 .name = "bd9995x-charger",
 .type = POWER_SUPPLY_TYPE_USB,
 .properties = bd9995x_power_supply_props,
 .num_properties = ARRAY_SIZE(bd9995x_power_supply_props),
 .get_property = bd9995x_power_supply_get_property,
};

/*
 * Limit configurations for vbus-input-current and vcc-vacp-input-current
 * Minimum limit is 0 uA. Max is 511 * 32000 uA = 16352000 uA. This is
 * configured by writing a register so that each increment in register
 * value equals to 32000 uA limit increment.
 *
 * Eg, value 0x0 is limit 0, value 0x1 is limit 32000, ...
 * Describe the setting in linear_range table.
 */
static const struct linear_range input_current_limit_ranges[] = {
 LINEAR_RANGE(0, 0x0, 0x1ff, 32000),
};

/* Possible trickle, pre-charging and termination current values */
static const struct linear_range charging_current_ranges[] = {
 LINEAR_RANGE(0, 0x0, 0x10, 64000),
 LINEAR_RANGE(1024000, 0x11, 0x1f, 0),
};

/*
 * Fast charging voltage regulation, starting re-charging limit
 * and battery over voltage protection have same possible values
 */
static const struct linear_range charge_voltage_regulation_ranges[] = {
 LINEAR_RANGE(2560000, 0, 0xA0, 0),
 LINEAR_RANGE(2560000, 0xA0, 0x4B0, 16000),
 LINEAR_RANGE(19200000, 0x4B0, 0x7FF, 0),
};

/* Possible VSYS voltage regulation values */
static const struct linear_range vsys_voltage_regulation_ranges[] = {
 LINEAR_RANGE(2560000, 0, 0x28, 0),
 LINEAR_RANGE(2560000, 0x28, 0x12C, 64000),
 LINEAR_RANGE(19200000, 0x12C, 0x1FF, 0),
};

/* Possible settings for switching from trickle to pre-charging limits */
static const struct linear_range trickle_to_pre_threshold_ranges[] = {
 LINEAR_RANGE(2048000, 0, 0x20, 0),
 LINEAR_RANGE(2048000, 0x20, 0x12C, 64000),
 LINEAR_RANGE(19200000, 0x12C, 0x1FF, 0),
};

/* Possible current values for fast-charging constant current phase */
static const struct linear_range fast_charge_current_ranges[] = {
 LINEAR_RANGE(0, 0, 0xFF, 64000),
};

struct battery_init {
 const char *name;
 int *info_data;
 const struct linear_range *range;
 int ranges;
 u16 *data;
};

struct dt_init {
 char *prop;
 const struct linear_range *range;
 int ranges;
 u16 *data;
};

static int bd9995x_fw_probe(struct bd9995x_device *bd)
{
 int ret;
 struct power_supply_battery_info *info;
 u32 property;
 int i;
 int regval;
 bool found;
 struct bd9995x_init_data *init = &bd->init_data;
 struct battery_init battery_inits[] = {
  {
   .name = "trickle-charging current",
   .range = &charging_current_ranges[0],
   .ranges = 2,
   .data = &init->itrich_set,
  }, {
   .name = "pre-charging current",
   .range = &charging_current_ranges[0],
   .ranges = 2,
   .data = &init->iprech_set,
  }, {
   .name = "pre-to-trickle charge voltage threshold",
   .range = &trickle_to_pre_threshold_ranges[0],
   .ranges = 2,
   .data = &init->vprechg_th_set,
  }, {
   .name = "charging termination current",
   .range = &charging_current_ranges[0],
   .ranges = 2,
   .data = &init->iterm_set,
  }, {
   .name = "charging re-start voltage",
   .range = &charge_voltage_regulation_ranges[0],
   .ranges = 2,
   .data = &init->vrechg_set,
  }, {
   .name = "battery overvoltage limit",
   .range = &charge_voltage_regulation_ranges[0],
   .ranges = 2,
   .data = &init->vbatovp_set,
  }, {
   .name = "fast-charging max current",
   .range = &fast_charge_current_ranges[0],
   .ranges = 1,
   .data = &init->ichg_set,
  }, {
   .name = "fast-charging voltage",
   .range = &charge_voltage_regulation_ranges[0],
   .ranges = 2,
   .data = &init->vfastchg_reg_set1,
  },
 };
 struct dt_init props[] = {
  {
   .prop = "rohm,vsys-regulation-microvolt",
   .range = &vsys_voltage_regulation_ranges[0],
   .ranges = 2,
   .data = &init->vsysreg_set,
  }, {
   .prop = "rohm,vbus-input-current-limit-microamp",
   .range = &input_current_limit_ranges[0],
   .ranges = 1,
   .data = &init->ibus_lim_set,
  }, {
   .prop = "rohm,vcc-input-current-limit-microamp",
   .range = &input_current_limit_ranges[0],
   .ranges = 1,
   .data = &init->icc_lim_set,
  },
 };

 /*
  * The power_supply_get_battery_info() does not support getting values
  * from ACPI. Let's fix it if ACPI is required here.
  */
 ret = power_supply_get_battery_info(bd->charger, &info);
 if (ret < 0)
  return ret;

 /* Put pointers to the generic battery info */
 battery_inits[0].info_data = &info->tricklecharge_current_ua;
 battery_inits[1].info_data = &info->precharge_current_ua;
 battery_inits[2].info_data = &info->precharge_voltage_max_uv;
 battery_inits[3].info_data = &info->charge_term_current_ua;
 battery_inits[4].info_data = &info->charge_restart_voltage_uv;
 battery_inits[5].info_data = &info->overvoltage_limit_uv;
 battery_inits[6].info_data = &info->constant_charge_current_max_ua;
 battery_inits[7].info_data = &info->constant_charge_voltage_max_uv;

 for (i = 0; i < ARRAY_SIZE(battery_inits); i++) {
  int val = *battery_inits[i].info_data;
  const struct linear_range *range = battery_inits[i].range;
  int ranges = battery_inits[i].ranges;

  if (val == -EINVAL)
   continue;

  ret = linear_range_get_selector_low_array(range, ranges, val,
         &regval, &found);
  if (ret) {
   dev_err(bd->dev, "Unsupported value for %s\n",
    battery_inits[i].name);

   power_supply_put_battery_info(bd->charger, info);
   return -EINVAL;
  }
  if (!found) {
   dev_warn(bd->dev,
     "Unsupported value for %s - using smaller\n",
     battery_inits[i].name);
  }
  *(battery_inits[i].data) = regval;
 }

 power_supply_put_battery_info(bd->charger, info);

 for (i = 0; i < ARRAY_SIZE(props); i++) {
  ret = device_property_read_u32(bd->dev, props[i].prop,
            &property);
  if (ret < 0) {
   dev_err(bd->dev, "failed to read %s", props[i].prop);

   return ret;
  }

  ret = linear_range_get_selector_low_array(props[i].range,
         props[i].ranges,
         property, &regval,
         &found);
  if (ret) {
   dev_err(bd->dev, "Unsupported value for '%s'\n",
    props[i].prop);

   return -EINVAL;
  }

  if (!found) {
   dev_warn(bd->dev,
     "Unsupported value for '%s' - using smaller\n",
     props[i].prop);
  }

  *(props[i].data) = regval;
 }

 return 0;
}

static void bd9995x_chip_reset(void *bd)
{
 __bd9995x_chip_reset(bd);
}

static int bd9995x_probe(struct i2c_client *client)
{
 struct device *dev = &client->dev;
 struct bd9995x_device *bd;
 struct power_supply_config psy_cfg = {};
 int ret;
 int i;

 bd = devm_kzalloc(dev, sizeof(*bd), GFP_KERNEL);
 if (!bd)
  return -ENOMEM;

 bd->client = client;
 bd->dev = dev;
 psy_cfg.drv_data = bd;
 psy_cfg.fwnode = dev_fwnode(dev);

 mutex_init(&bd->lock);

 bd->rmap = devm_regmap_init_i2c(client, &bd9995x_regmap_config);
 if (IS_ERR(bd->rmap)) {
  dev_err(dev, "Failed to setup register access via i2c\n");
  return PTR_ERR(bd->rmap);
 }

 for (i = 0; i < ARRAY_SIZE(bd9995x_reg_fields); i++) {
  const struct reg_field *reg_fields = bd9995x_reg_fields;

  bd->rmap_fields[i] = devm_regmap_field_alloc(dev, bd->rmap,
            reg_fields[i]);
  if (IS_ERR(bd->rmap_fields[i])) {
   dev_err(dev, "cannot allocate regmap field\n");
   return PTR_ERR(bd->rmap_fields[i]);
  }
 }

 i2c_set_clientdata(client, bd);

 ret = regmap_field_read(bd->rmap_fields[F_CHIP_ID], &bd->chip_id);
 if (ret) {
  dev_err(dev, "Cannot read chip ID.\n");
  return ret;
 }

 if (bd->chip_id != BD99954_ID) {
  dev_err(dev, "Chip with ID=0x%x, not supported!\n",
   bd->chip_id);
  return -ENODEV;
 }

 ret = regmap_field_read(bd->rmap_fields[F_CHIP_REV], &bd->chip_rev);
 if (ret) {
  dev_err(dev, "Cannot read revision.\n");
  return ret;
 }

 dev_info(bd->dev, "Found BD99954 chip rev %d\n", bd->chip_rev);

 /*
  * We need to init the psy before we can call
  * power_supply_get_battery_info() for it
  */
 bd->charger = devm_power_supply_register(bd->dev,
       &bd9995x_power_supply_desc,
      &psy_cfg);
 if (IS_ERR(bd->charger)) {
  dev_err(dev, "Failed to register power supply\n");
  return PTR_ERR(bd->charger);
 }

 ret = bd9995x_fw_probe(bd);
 if (ret < 0) {
  dev_err(dev, "Cannot read device properties.\n");
  return ret;
 }

 ret = bd9995x_hw_init(bd);
 if (ret < 0) {
  dev_err(dev, "Cannot initialize the chip.\n");
  return ret;
 }

 ret = devm_add_action_or_reset(dev, bd9995x_chip_reset, bd);
 if (ret)
  return ret;

 return devm_request_threaded_irq(dev, client->irq, NULL,
      bd9995x_irq_handler_thread,
      IRQF_TRIGGER_LOW | IRQF_ONESHOT,
      BD9995X_IRQ_PIN, bd);
}

static const struct of_device_id bd9995x_of_match[] = {
 { .compatible = "rohm,bd99954", },
 { }
};
MODULE_DEVICE_TABLE(of, bd9995x_of_match);

static struct i2c_driver bd9995x_driver = {
 .driver = {
  .name = "bd9995x-charger",
  .of_match_table = bd9995x_of_match,
 },
 .probe = bd9995x_probe,
};
module_i2c_driver(bd9995x_driver);

MODULE_AUTHOR("Laine Markus <markus.laine@fi.rohmeurope.com>");
MODULE_DESCRIPTION("ROHM BD99954 charger driver");
MODULE_LICENSE("GPL");