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294a97da ŁM |
1 | /* |
2 | * Copyright (C) 2012 Samsung Electronics | |
3 | * Lukasz Majewski <l.majewski@samsung.com> | |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
294a97da ŁM |
6 | */ |
7 | ||
8 | #include <common.h> | |
9 | #include <power/pmic.h> | |
10 | #include <power/power_chrg.h> | |
11 | #include <power/max8997_muic.h> | |
12 | #include <i2c.h> | |
13 | #include <errno.h> | |
14 | ||
15 | static int power_chrg_get_type(struct pmic *p) | |
16 | { | |
17 | unsigned int val; | |
18 | unsigned char charge_type, charger; | |
19 | ||
20 | if (pmic_probe(p)) | |
21 | return CHARGER_NO; | |
22 | ||
23 | pmic_reg_read(p, MAX8997_MUIC_STATUS2, &val); | |
24 | charge_type = val & MAX8997_MUIC_CHG_MASK; | |
25 | ||
26 | switch (charge_type) { | |
27 | case MAX8997_MUIC_CHG_NO: | |
28 | charger = CHARGER_NO; | |
29 | break; | |
30 | case MAX8997_MUIC_CHG_USB: | |
31 | case MAX8997_MUIC_CHG_USB_D: | |
32 | charger = CHARGER_USB; | |
33 | break; | |
34 | case MAX8997_MUIC_CHG_TA: | |
35 | case MAX8997_MUIC_CHG_TA_1A: | |
36 | charger = CHARGER_TA; | |
37 | break; | |
38 | case MAX8997_MUIC_CHG_TA_500: | |
39 | charger = CHARGER_TA_500; | |
40 | break; | |
41 | default: | |
42 | charger = CHARGER_UNKNOWN; | |
43 | break; | |
44 | } | |
45 | ||
46 | return charger; | |
47 | } | |
48 | ||
49 | static struct power_chrg power_chrg_muic_ops = { | |
50 | .chrg_type = power_chrg_get_type, | |
51 | }; | |
52 | ||
53 | int power_muic_init(unsigned int bus) | |
54 | { | |
55 | static const char name[] = "MAX8997_MUIC"; | |
56 | struct pmic *p = pmic_alloc(); | |
57 | ||
58 | if (!p) { | |
59 | printf("%s: POWER allocation error!\n", __func__); | |
60 | return -ENOMEM; | |
61 | } | |
62 | ||
63 | debug("Board Micro USB Interface Controller init\n"); | |
64 | ||
65 | p->name = name; | |
66 | p->interface = PMIC_I2C; | |
67 | p->number_of_regs = MUIC_NUM_OF_REGS; | |
68 | p->hw.i2c.addr = MAX8997_MUIC_I2C_ADDR; | |
69 | p->hw.i2c.tx_num = 1; | |
70 | p->bus = bus; | |
71 | ||
72 | p->chrg = &power_chrg_muic_ops; | |
73 | return 0; | |
74 | } |