1*04750447SPiotr Wilczek /* 2*04750447SPiotr Wilczek * Copyright (C) 2013 Samsung Electronics 3*04750447SPiotr Wilczek * Piotr Wilczek <p.wilczek@samsung.com> 4*04750447SPiotr Wilczek * 5*04750447SPiotr Wilczek * SPDX-License-Identifier: GPL-2.0+ 6*04750447SPiotr Wilczek */ 7*04750447SPiotr Wilczek 8*04750447SPiotr Wilczek #include <common.h> 9*04750447SPiotr Wilczek #include <power/pmic.h> 10*04750447SPiotr Wilczek #include <power/power_chrg.h> 11*04750447SPiotr Wilczek #include <power/max77693_muic.h> 12*04750447SPiotr Wilczek #include <i2c.h> 13*04750447SPiotr Wilczek #include <errno.h> 14*04750447SPiotr Wilczek power_chrg_get_type(struct pmic * p)15*04750447SPiotr Wilczekstatic int power_chrg_get_type(struct pmic *p) 16*04750447SPiotr Wilczek { 17*04750447SPiotr Wilczek unsigned int val; 18*04750447SPiotr Wilczek unsigned int charge_type, charger; 19*04750447SPiotr Wilczek 20*04750447SPiotr Wilczek /* if probe failed, return cable none */ 21*04750447SPiotr Wilczek if (pmic_probe(p)) 22*04750447SPiotr Wilczek return CHARGER_NO; 23*04750447SPiotr Wilczek 24*04750447SPiotr Wilczek pmic_reg_read(p, MAX77693_MUIC_STATUS2, &val); 25*04750447SPiotr Wilczek 26*04750447SPiotr Wilczek charge_type = val & MAX77693_MUIC_CHG_MASK; 27*04750447SPiotr Wilczek 28*04750447SPiotr Wilczek switch (charge_type) { 29*04750447SPiotr Wilczek case MAX77693_MUIC_CHG_NO: 30*04750447SPiotr Wilczek charger = CHARGER_NO; 31*04750447SPiotr Wilczek break; 32*04750447SPiotr Wilczek case MAX77693_MUIC_CHG_USB: 33*04750447SPiotr Wilczek case MAX77693_MUIC_CHG_USB_D: 34*04750447SPiotr Wilczek charger = CHARGER_USB; 35*04750447SPiotr Wilczek break; 36*04750447SPiotr Wilczek case MAX77693_MUIC_CHG_TA: 37*04750447SPiotr Wilczek case MAX77693_MUIC_CHG_TA_1A: 38*04750447SPiotr Wilczek charger = CHARGER_TA; 39*04750447SPiotr Wilczek break; 40*04750447SPiotr Wilczek case MAX77693_MUIC_CHG_TA_500: 41*04750447SPiotr Wilczek charger = CHARGER_TA_500; 42*04750447SPiotr Wilczek break; 43*04750447SPiotr Wilczek default: 44*04750447SPiotr Wilczek charger = CHARGER_UNKNOWN; 45*04750447SPiotr Wilczek break; 46*04750447SPiotr Wilczek } 47*04750447SPiotr Wilczek 48*04750447SPiotr Wilczek return charger; 49*04750447SPiotr Wilczek } 50*04750447SPiotr Wilczek 51*04750447SPiotr Wilczek static struct power_chrg power_chrg_muic_ops = { 52*04750447SPiotr Wilczek .chrg_type = power_chrg_get_type, 53*04750447SPiotr Wilczek }; 54*04750447SPiotr Wilczek power_muic_init(unsigned int bus)55*04750447SPiotr Wilczekint power_muic_init(unsigned int bus) 56*04750447SPiotr Wilczek { 57*04750447SPiotr Wilczek static const char name[] = "MAX77693_MUIC"; 58*04750447SPiotr Wilczek struct pmic *p = pmic_alloc(); 59*04750447SPiotr Wilczek 60*04750447SPiotr Wilczek if (!p) { 61*04750447SPiotr Wilczek printf("%s: POWER allocation error!\n", __func__); 62*04750447SPiotr Wilczek return -ENOMEM; 63*04750447SPiotr Wilczek } 64*04750447SPiotr Wilczek 65*04750447SPiotr Wilczek debug("Board Micro USB Interface Controller init\n"); 66*04750447SPiotr Wilczek 67*04750447SPiotr Wilczek p->name = name; 68*04750447SPiotr Wilczek p->interface = PMIC_I2C; 69*04750447SPiotr Wilczek p->number_of_regs = MUIC_NUM_OF_REGS; 70*04750447SPiotr Wilczek p->hw.i2c.addr = MAX77693_MUIC_I2C_ADDR; 71*04750447SPiotr Wilczek p->hw.i2c.tx_num = 1; 72*04750447SPiotr Wilczek p->bus = bus; 73*04750447SPiotr Wilczek 74*04750447SPiotr Wilczek p->chrg = &power_chrg_muic_ops; 75*04750447SPiotr Wilczek 76*04750447SPiotr Wilczek return 0; 77*04750447SPiotr Wilczek } 78