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 <linux/delay.h>
11 #include <power/pmic.h>
12 #include <power/battery.h>
13 #include <power/max8997_pmic.h>
14 #include <errno.h>
15
16 static struct battery battery_trats;
17
power_battery_charge(struct pmic * bat)18 static int power_battery_charge(struct pmic *bat)
19 {
20 struct power_battery *p_bat = bat->pbat;
21 struct battery *battery = p_bat->bat;
22 int k;
23
24 if (bat->chrg->chrg_state(p_bat->chrg, PMIC_CHARGER_ENABLE, 450))
25 return -1;
26
27 for (k = 0; bat->chrg->chrg_bat_present(p_bat->chrg) &&
28 bat->chrg->chrg_type(p_bat->muic) &&
29 battery->state_of_chrg < 100; k++) {
30 udelay(2000000);
31 if (!(k % 5))
32 puts(".");
33 bat->fg->fg_battery_update(p_bat->fg, bat);
34
35 if (k == 200) {
36 debug(" %d [V]", battery->voltage_uV);
37 puts("\n");
38 k = 0;
39 }
40
41 if (ctrlc()) {
42 printf("\nCharging disabled on request.\n");
43 goto exit;
44 }
45 }
46 exit:
47 bat->chrg->chrg_state(p_bat->chrg, PMIC_CHARGER_DISABLE, 0);
48
49 return 0;
50 }
51
power_battery_init_trats(struct pmic * bat_,struct pmic * fg_,struct pmic * chrg_,struct pmic * muic_)52 static int power_battery_init_trats(struct pmic *bat_,
53 struct pmic *fg_,
54 struct pmic *chrg_,
55 struct pmic *muic_)
56 {
57 bat_->pbat->fg = fg_;
58 bat_->pbat->chrg = chrg_;
59 bat_->pbat->muic = muic_;
60
61 bat_->fg = fg_->fg;
62 bat_->chrg = chrg_->chrg;
63 bat_->chrg->chrg_type = muic_->chrg->chrg_type;
64 return 0;
65 }
66
67 static struct power_battery power_bat_trats = {
68 .bat = &battery_trats,
69 .battery_init = power_battery_init_trats,
70 .battery_charge = power_battery_charge,
71 };
72
power_bat_init(unsigned char bus)73 int power_bat_init(unsigned char bus)
74 {
75 static const char name[] = "BAT_TRATS";
76 struct pmic *p = pmic_alloc();
77
78 if (!p) {
79 printf("%s: POWER allocation error!\n", __func__);
80 return -ENOMEM;
81 }
82
83 debug("Board BAT init\n");
84
85 p->interface = PMIC_NONE;
86 p->name = name;
87 p->bus = bus;
88
89 p->pbat = &power_bat_trats;
90 return 0;
91 }
92