drivers/power/battery/bat_trats.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  *  Copyright (C) 2012 Samsung Electronics
   4  *  Lukasz Majewski <l.majewski@samsung.com>
   5  */
   6
   7 #include <common.h>
   8 #include <console.h>
   9 #include <log.h>
  10 #include <power/pmic.h>
  11 #include <power/battery.h>
  12 #include <power/max8997_pmic.h>
  13 #include <errno.h>
  14
  15 static struct battery battery_trats;
  16
  17 static int power_battery_charge(struct pmic *bat)
  18 {
  19         struct power_battery *p_bat = bat->pbat;
  20         struct battery *battery = p_bat->bat;
  21         int k;
  22
  23         if (bat->chrg->chrg_state(p_bat->chrg, PMIC_CHARGER_ENABLE, 450))
  24                 return -1;
  25
  26         for (k = 0; bat->chrg->chrg_bat_present(p_bat->chrg) &&
  27                      bat->chrg->chrg_type(p_bat->muic) &&
  28                      battery->state_of_chrg < 100; k++) {
  29                 udelay(2000000);
  30                 if (!(k % 5))
  31                         puts(".");
  32                 bat->fg->fg_battery_update(p_bat->fg, bat);
  33
  34                 if (k == 200) {
  35                         debug(" %d [V]", battery->voltage_uV);
  36                         puts("\n");
  37                         k = 0;
  38                 }
  39
  40                 if (ctrlc()) {
  41                         printf("\nCharging disabled on request.\n");
  42                         goto exit;
  43                 }
  44         }
  45  exit:
  46         bat->chrg->chrg_state(p_bat->chrg, PMIC_CHARGER_DISABLE, 0);
  47
  48         return 0;
  49 }
  50
  51 static int power_battery_init_trats(struct pmic *bat_,
  52                                     struct pmic *fg_,
  53                                     struct pmic *chrg_,
  54                                     struct pmic *muic_)
  55 {
  56         bat_->pbat->fg = fg_;
  57         bat_->pbat->chrg = chrg_;
  58         bat_->pbat->muic = muic_;
  59
  60         bat_->fg = fg_->fg;
  61         bat_->chrg = chrg_->chrg;
  62         bat_->chrg->chrg_type = muic_->chrg->chrg_type;
  63         return 0;
  64 }
  65
  66 static struct power_battery power_bat_trats = {
  67         .bat = &battery_trats,
  68         .battery_init = power_battery_init_trats,
  69         .battery_charge = power_battery_charge,
  70 };
  71
  72 int power_bat_init(unsigned char bus)
  73 {
  74         static const char name[] = "BAT_TRATS";
  75         struct pmic *p = pmic_alloc();
  76
  77         if (!p) {
  78                 printf("%s: POWER allocation error!\n", __func__);
  79                 return -ENOMEM;
  80         }
  81
  82         debug("Board BAT init\n");
  83
  84         p->interface = PMIC_NONE;
  85         p->name = name;
  86         p->bus = bus;
  87
  88         p->pbat = &power_bat_trats;
  89         return 0;
  90 }