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