1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (C) 2013 Samsung Electronics 3*4882a593Smuzhiyun * Piotr Wilczek <p.wilczek@samsung.com> 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #include <common.h> 9*4882a593Smuzhiyun #include <power/pmic.h> 10*4882a593Smuzhiyun #include <power/power_chrg.h> 11*4882a593Smuzhiyun #include <power/max77693_muic.h> 12*4882a593Smuzhiyun #include <i2c.h> 13*4882a593Smuzhiyun #include <errno.h> 14*4882a593Smuzhiyun power_chrg_get_type(struct pmic * p)15*4882a593Smuzhiyunstatic int power_chrg_get_type(struct pmic *p) 16*4882a593Smuzhiyun { 17*4882a593Smuzhiyun unsigned int val; 18*4882a593Smuzhiyun unsigned int charge_type, charger; 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun /* if probe failed, return cable none */ 21*4882a593Smuzhiyun if (pmic_probe(p)) 22*4882a593Smuzhiyun return CHARGER_NO; 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun pmic_reg_read(p, MAX77693_MUIC_STATUS2, &val); 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun charge_type = val & MAX77693_MUIC_CHG_MASK; 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun switch (charge_type) { 29*4882a593Smuzhiyun case MAX77693_MUIC_CHG_NO: 30*4882a593Smuzhiyun charger = CHARGER_NO; 31*4882a593Smuzhiyun break; 32*4882a593Smuzhiyun case MAX77693_MUIC_CHG_USB: 33*4882a593Smuzhiyun case MAX77693_MUIC_CHG_USB_D: 34*4882a593Smuzhiyun charger = CHARGER_USB; 35*4882a593Smuzhiyun break; 36*4882a593Smuzhiyun case MAX77693_MUIC_CHG_TA: 37*4882a593Smuzhiyun case MAX77693_MUIC_CHG_TA_1A: 38*4882a593Smuzhiyun charger = CHARGER_TA; 39*4882a593Smuzhiyun break; 40*4882a593Smuzhiyun case MAX77693_MUIC_CHG_TA_500: 41*4882a593Smuzhiyun charger = CHARGER_TA_500; 42*4882a593Smuzhiyun break; 43*4882a593Smuzhiyun default: 44*4882a593Smuzhiyun charger = CHARGER_UNKNOWN; 45*4882a593Smuzhiyun break; 46*4882a593Smuzhiyun } 47*4882a593Smuzhiyun 48*4882a593Smuzhiyun return charger; 49*4882a593Smuzhiyun } 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun static struct power_chrg power_chrg_muic_ops = { 52*4882a593Smuzhiyun .chrg_type = power_chrg_get_type, 53*4882a593Smuzhiyun }; 54*4882a593Smuzhiyun power_muic_init(unsigned int bus)55*4882a593Smuzhiyunint power_muic_init(unsigned int bus) 56*4882a593Smuzhiyun { 57*4882a593Smuzhiyun static const char name[] = "MAX77693_MUIC"; 58*4882a593Smuzhiyun struct pmic *p = pmic_alloc(); 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun if (!p) { 61*4882a593Smuzhiyun printf("%s: POWER allocation error!\n", __func__); 62*4882a593Smuzhiyun return -ENOMEM; 63*4882a593Smuzhiyun } 64*4882a593Smuzhiyun 65*4882a593Smuzhiyun debug("Board Micro USB Interface Controller init\n"); 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun p->name = name; 68*4882a593Smuzhiyun p->interface = PMIC_I2C; 69*4882a593Smuzhiyun p->number_of_regs = MUIC_NUM_OF_REGS; 70*4882a593Smuzhiyun p->hw.i2c.addr = MAX77693_MUIC_I2C_ADDR; 71*4882a593Smuzhiyun p->hw.i2c.tx_num = 1; 72*4882a593Smuzhiyun p->bus = bus; 73*4882a593Smuzhiyun 74*4882a593Smuzhiyun p->chrg = &power_chrg_muic_ops; 75*4882a593Smuzhiyun 76*4882a593Smuzhiyun return 0; 77*4882a593Smuzhiyun } 78