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/*
* Copyright (C) 2012 Samsung Electronics
* Lukasz Majewski <l.majewski@samsung.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#include <power/pmic.h>
#include <power/max8997_pmic.h>
#include <i2c.h>
#include <errno.h>
unsigned char max8997_reg_ldo(int uV)
{
unsigned char ret;
if (uV <= 800000)
return 0;
if (uV >= 3950000)
return MAX8997_LDO_MAX_VAL;
ret = (uV - 800000) / 50000;
if (ret > MAX8997_LDO_MAX_VAL) {
printf("MAX8997 LDO SETTING ERROR (%duV) -> %u\n", uV, ret);
ret = MAX8997_LDO_MAX_VAL;
}
return ret;
}
int pmic_init(unsigned char bus)
{
static const char name[] = "MAX8997_PMIC";
struct pmic *p = pmic_alloc();
if (!p) {
printf("%s: POWER allocation error!\n", __func__);
return -ENOMEM;
}
puts("Board PMIC init\n");
p->name = name;
p->interface = PMIC_I2C;
p->number_of_regs = PMIC_NUM_OF_REGS;
p->hw.i2c.addr = MAX8997_I2C_ADDR;
p->hw.i2c.tx_num = 1;
p->bus = bus;
return 0;
}
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