linux-imx

/*

 * tps65217.c

 *

 * TPS65217 chip family multi-function driver

 *

 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.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.

 */

​

#include <linux/device.h>

#include <linux/err.h>

#include <linux/init.h>

#include <linux/interrupt.h>

#include <linux/i2c.h>

#include <linux/irq.h>

#include <linux/irqdomain.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/of_device.h>

#include <linux/platform_device.h>

#include <linux/regmap.h>

#include <linux/slab.h>

​

#include <linux/mfd/core.h>

#include <linux/mfd/tps65217.h>

​

static struct resource charger_resources[] = {

    DEFINE_RES_IRQ_NAMED(TPS65217_IRQ_AC, "AC"),

    DEFINE_RES_IRQ_NAMED(TPS65217_IRQ_USB, "USB"),

};

​

static struct resource pb_resources[] = {

    DEFINE_RES_IRQ_NAMED(TPS65217_IRQ_PB, "PB"),

};

​

static void tps65217_irq_lock(struct irq_data *data)

{

    struct tps65217 *tps = irq_data_get_irq_chip_data(data);

​

    mutex_lock(&tps->irq_lock);

}

​

static void tps65217_irq_sync_unlock(struct irq_data *data)

{

    struct tps65217 *tps = irq_data_get_irq_chip_data(data);

    int ret;

​

    ret = tps65217_set_bits(tps, TPS65217_REG_INT, TPS65217_INT_MASK,

                tps->irq_mask, TPS65217_PROTECT_NONE);

    if (ret != 0)

        dev_err(tps->dev, "Failed to sync IRQ masks\n");

​

    mutex_unlock(&tps->irq_lock);

}

​

static void tps65217_irq_enable(struct irq_data *data)

{

    struct tps65217 *tps = irq_data_get_irq_chip_data(data);

    u8 mask = BIT(data->hwirq) << TPS65217_INT_SHIFT;

​

    tps->irq_mask &= ~mask;

}

​

static void tps65217_irq_disable(struct irq_data *data)

{

    struct tps65217 *tps = irq_data_get_irq_chip_data(data);

    u8 mask = BIT(data->hwirq) << TPS65217_INT_SHIFT;

​

    tps->irq_mask |= mask;

}

​

static struct irq_chip tps65217_irq_chip = {

    .name           = "tps65217",

    .irq_bus_lock       = tps65217_irq_lock,

    .irq_bus_sync_unlock    = tps65217_irq_sync_unlock,

    .irq_enable     = tps65217_irq_enable,

    .irq_disable        = tps65217_irq_disable,

};

​

static struct mfd_cell tps65217s[] = {

    {

        .name = "tps65217-pmic",

        .of_compatible = "ti,tps65217-pmic",