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https://github.com/brain-hackers/u-boot-brain
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294a97da34
Support for MUIC (Micro USB Integrated Circuit) built into the MAX8997 power management device. The MUIC device will work with redesigned PMIC framework. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Stefano Babic <sbabic@denx.de>
91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
/*
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* Copyright (C) 2012 Samsung Electronics
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* Lukasz Majewski <l.majewski@samsung.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <power/pmic.h>
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#include <power/power_chrg.h>
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#include <power/max8997_muic.h>
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#include <i2c.h>
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#include <errno.h>
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static int power_chrg_get_type(struct pmic *p)
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{
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unsigned int val;
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unsigned char charge_type, charger;
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if (pmic_probe(p))
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return CHARGER_NO;
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pmic_reg_read(p, MAX8997_MUIC_STATUS2, &val);
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charge_type = val & MAX8997_MUIC_CHG_MASK;
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switch (charge_type) {
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case MAX8997_MUIC_CHG_NO:
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charger = CHARGER_NO;
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break;
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case MAX8997_MUIC_CHG_USB:
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case MAX8997_MUIC_CHG_USB_D:
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charger = CHARGER_USB;
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break;
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case MAX8997_MUIC_CHG_TA:
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case MAX8997_MUIC_CHG_TA_1A:
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charger = CHARGER_TA;
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break;
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case MAX8997_MUIC_CHG_TA_500:
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charger = CHARGER_TA_500;
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break;
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default:
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charger = CHARGER_UNKNOWN;
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break;
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}
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return charger;
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}
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static struct power_chrg power_chrg_muic_ops = {
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.chrg_type = power_chrg_get_type,
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};
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int power_muic_init(unsigned int bus)
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{
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static const char name[] = "MAX8997_MUIC";
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struct pmic *p = pmic_alloc();
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if (!p) {
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printf("%s: POWER allocation error!\n", __func__);
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return -ENOMEM;
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}
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debug("Board Micro USB Interface Controller init\n");
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p->name = name;
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p->interface = PMIC_I2C;
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p->number_of_regs = MUIC_NUM_OF_REGS;
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p->hw.i2c.addr = MAX8997_MUIC_I2C_ADDR;
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p->hw.i2c.tx_num = 1;
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p->bus = bus;
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p->chrg = &power_chrg_muic_ops;
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return 0;
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}
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