blob: 36ee44b9a2c9dd690c487f4a76370c15fae0a225 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -04001// SPDX-License-Identifier: GPL-2.0+
Piotr Wilczek04750442013-09-24 16:31:22 +02002/*
3 * Copyright (C) 2013 Samsung Electronics
4 * Piotr Wilczek <p.wilczek@samsung.com>
Piotr Wilczek04750442013-09-24 16:31:22 +02005 */
6
7#include <common.h>
Simon Glassf7ae49f2020-05-10 11:40:05 -06008#include <log.h>
Piotr Wilczek04750442013-09-24 16:31:22 +02009#include <power/pmic.h>
10#include <power/power_chrg.h>
11#include <power/max77693_muic.h>
12#include <i2c.h>
13#include <errno.h>
14
15static int power_chrg_get_type(struct pmic *p)
16{
17 unsigned int val;
18 unsigned int charge_type, charger;
19
20 /* if probe failed, return cable none */
21 if (pmic_probe(p))
22 return CHARGER_NO;
23
24 pmic_reg_read(p, MAX77693_MUIC_STATUS2, &val);
25
26 charge_type = val & MAX77693_MUIC_CHG_MASK;
27
28 switch (charge_type) {
29 case MAX77693_MUIC_CHG_NO:
30 charger = CHARGER_NO;
31 break;
32 case MAX77693_MUIC_CHG_USB:
33 case MAX77693_MUIC_CHG_USB_D:
34 charger = CHARGER_USB;
35 break;
36 case MAX77693_MUIC_CHG_TA:
37 case MAX77693_MUIC_CHG_TA_1A:
38 charger = CHARGER_TA;
39 break;
40 case MAX77693_MUIC_CHG_TA_500:
41 charger = CHARGER_TA_500;
42 break;
43 default:
44 charger = CHARGER_UNKNOWN;
45 break;
46 }
47
48 return charger;
49}
50
51static struct power_chrg power_chrg_muic_ops = {
52 .chrg_type = power_chrg_get_type,
53};
54
55int power_muic_init(unsigned int bus)
56{
57 static const char name[] = "MAX77693_MUIC";
58 struct pmic *p = pmic_alloc();
59
60 if (!p) {
61 printf("%s: POWER allocation error!\n", __func__);
62 return -ENOMEM;
63 }
64
65 debug("Board Micro USB Interface Controller init\n");
66
67 p->name = name;
68 p->interface = PMIC_I2C;
69 p->number_of_regs = MUIC_NUM_OF_REGS;
70 p->hw.i2c.addr = MAX77693_MUIC_I2C_ADDR;
71 p->hw.i2c.tx_num = 1;
72 p->bus = bus;
73
74 p->chrg = &power_chrg_muic_ops;
75
76 return 0;
77}