]> git.sur5r.net Git - u-boot/blob - drivers/power/mfd/muic_max77693.c
drivers: move some drivers to drivers/Makefile
[u-boot] / drivers / power / mfd / muic_max77693.c
1 /*
2  * Copyright (C) 2013 Samsung Electronics
3  * Piotr Wilczek <p.wilczek@samsung.com>
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  */
7
8 #include <common.h>
9 #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
15 static 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
51 static struct power_chrg power_chrg_muic_ops = {
52         .chrg_type = power_chrg_get_type,
53 };
54
55 int 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 }