linux-imx

/*

 * tps80031.c -- TI TPS80031/TPS80032 mfd core driver.

 *

 * MFD core driver for TI TPS80031/TPS80032 Fully Integrated

 * Power Management with Power Path and Battery Charger

 *

 * Copyright (c) 2012, NVIDIA Corporation.

 *

 * Author: Laxman Dewangan <ldewangan@nvidia.com>

 *

 * 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 version 2.

 *

 * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,

 * whether express or implied; 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 <linux/err.h>

#include <linux/i2c.h>

#include <linux/init.h>

#include <linux/interrupt.h>

#include <linux/irq.h>

#include <linux/mfd/core.h>

#include <linux/mfd/tps80031.h>

#include <linux/pm.h>

#include <linux/regmap.h>

#include <linux/slab.h>

​

static struct resource tps80031_rtc_resources[] = {

    {

        .start = TPS80031_INT_RTC_ALARM,

        .end = TPS80031_INT_RTC_ALARM,

        .flags = IORESOURCE_IRQ,

    },

};

​

/* TPS80031 sub mfd devices */

static const struct mfd_cell tps80031_cell[] = {

    {

        .name = "tps80031-pmic",

    },

    {

        .name = "tps80031-clock",

    },

    {

        .name = "tps80031-rtc",

        .num_resources = ARRAY_SIZE(tps80031_rtc_resources),

        .resources = tps80031_rtc_resources,

    },

    {

        .name = "tps80031-gpadc",

    },

    {

        .name = "tps80031-fuel-gauge",

    },

    {

        .name = "tps80031-charger",

    },

};

​

static int tps80031_slave_address[TPS80031_NUM_SLAVES] = {

    TPS80031_I2C_ID0_ADDR,

    TPS80031_I2C_ID1_ADDR,

    TPS80031_I2C_ID2_ADDR,

    TPS80031_I2C_ID3_ADDR,

};

​

struct tps80031_pupd_data {

    u8  reg;

    u8  pullup_bit;

    u8  pulldown_bit;

};

​

#define TPS80031_IRQ(_reg, _mask)           \

    {                           \

        .reg_offset = (TPS80031_INT_MSK_LINE_##_reg) -  \

                TPS80031_INT_MSK_LINE_A,    \

        .mask = BIT(_mask),             \

    }

​

static const struct regmap_irq tps80031_main_irqs[] = {

    [TPS80031_INT_PWRON]        = TPS80031_IRQ(A, 0),

    [TPS80031_INT_RPWRON]       = TPS80031_IRQ(A, 1),

    [TPS80031_INT_SYS_VLOW]     = TPS80031_IRQ(A, 2),