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mfd: da9052: Introduce da9052-irq.c 

Create a da9052-irq.c file so that it can handle interrupt related functions.

This is useful for allowing the da9052 drivers to use such functions
when dealing with da9052 interrupts.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Fabio Estevam 2012-10-04 00:15:05 -03:00 committed by Samuel Ortiz
parent ffe20b6854
commit 8bad1abd63
4 changed files with 307 additions and 263 deletions
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1
drivers/mfd/Makefile
View File

@ -90,6 +90,7 @@ obj-$(CONFIG_UCB1400_CORE) += ucb1400_core.o
obj-$(CONFIG_PMIC_DA903X) += da903x.o
obj-$(CONFIG_PMIC_DA9052) += da9052-irq.o
obj-$(CONFIG_PMIC_DA9052) += da9052-core.o
obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o
obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o

271
drivers/mfd/da9052-core.c
View File

@ -15,7 +15,6 @@
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/mfd/core.h>
#include <linux/slab.h>
#include <linux/module.h>
@ -24,16 +23,6 @@
#include <linux/mfd/da9052/pdata.h>
#include <linux/mfd/da9052/reg.h>
#define DA9052_NUM_IRQ_REGS 4
#define DA9052_IRQ_MASK_POS_1 0x01
#define DA9052_IRQ_MASK_POS_2 0x02
#define DA9052_IRQ_MASK_POS_3 0x04
#define DA9052_IRQ_MASK_POS_4 0x08
#define DA9052_IRQ_MASK_POS_5 0x10
#define DA9052_IRQ_MASK_POS_6 0x20
#define DA9052_IRQ_MASK_POS_7 0x40
#define DA9052_IRQ_MASK_POS_8 0x80
static bool da9052_reg_readable(struct device *dev, unsigned int reg)
{
switch (reg) {
@ -425,15 +414,6 @@ err:
}
EXPORT_SYMBOL_GPL(da9052_adc_manual_read);
static irqreturn_t da9052_auxadc_irq(int irq, void *irq_data)
{
struct da9052 *da9052 = irq_data;
complete(&da9052->done);
return IRQ_HANDLED;
}
int da9052_adc_read_temp(struct da9052 *da9052)
{
int tbat;
@ -447,74 +427,6 @@ int da9052_adc_read_temp(struct da9052 *da9052)
}
EXPORT_SYMBOL_GPL(da9052_adc_read_temp);
static struct resource da9052_rtc_resource = {
.name = "ALM",
.start = DA9052_IRQ_ALARM,
.end = DA9052_IRQ_ALARM,
.flags = IORESOURCE_IRQ,
};
static struct resource da9052_onkey_resource = {
.name = "ONKEY",
.start = DA9052_IRQ_NONKEY,
.end = DA9052_IRQ_NONKEY,
.flags = IORESOURCE_IRQ,
};
static struct resource da9052_bat_resources[] = {
{
.name = "BATT TEMP",
.start = DA9052_IRQ_TBAT,
.end = DA9052_IRQ_TBAT,
.flags = IORESOURCE_IRQ,
},
{
.name = "DCIN DET",
.start = DA9052_IRQ_DCIN,
.end = DA9052_IRQ_DCIN,
.flags = IORESOURCE_IRQ,
},
{
.name = "DCIN REM",
.start = DA9052_IRQ_DCINREM,
.end = DA9052_IRQ_DCINREM,
.flags = IORESOURCE_IRQ,
},
{
.name = "VBUS DET",
.start = DA9052_IRQ_VBUS,
.end = DA9052_IRQ_VBUS,
.flags = IORESOURCE_IRQ,
},
{
.name = "VBUS REM",
.start = DA9052_IRQ_VBUSREM,
.end = DA9052_IRQ_VBUSREM,
.flags = IORESOURCE_IRQ,
},
{
.name = "CHG END",
.start = DA9052_IRQ_CHGEND,
.end = DA9052_IRQ_CHGEND,
.flags = IORESOURCE_IRQ,
},
};
static struct resource da9052_tsi_resources[] = {
{
.name = "PENDWN",
.start = DA9052_IRQ_PENDOWN,
.end = DA9052_IRQ_PENDOWN,
.flags = IORESOURCE_IRQ,
},
{
.name = "TSIRDY",
.start = DA9052_IRQ_TSIREADY,
.end = DA9052_IRQ_TSIREADY,
.flags = IORESOURCE_IRQ,
},
};
static struct mfd_cell __devinitdata da9052_subdev_info[] = {
{
.name = "da9052-regulator",
@ -574,13 +486,9 @@ static struct mfd_cell __devinitdata da9052_subdev_info[] = {
},
{
.name = "da9052-onkey",
.resources = &da9052_onkey_resource,
.num_resources = 1,
},
{
.name = "da9052-rtc",
.resources = &da9052_rtc_resource,
.num_resources = 1,
},
{
.name = "da9052-gpio",
@ -602,160 +510,15 @@ static struct mfd_cell __devinitdata da9052_subdev_info[] = {
},
{
.name = "da9052-tsi",
.resources = da9052_tsi_resources,
.num_resources = ARRAY_SIZE(da9052_tsi_resources),
},
{
.name = "da9052-bat",
.resources = da9052_bat_resources,
.num_resources = ARRAY_SIZE(da9052_bat_resources),
},
{
.name = "da9052-watchdog",
},
};
static struct regmap_irq da9052_irqs[] = {
[DA9052_IRQ_DCIN] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_1,
},
[DA9052_IRQ_VBUS] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_2,
},
[DA9052_IRQ_DCINREM] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_3,
},
[DA9052_IRQ_VBUSREM] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_4,
},
[DA9052_IRQ_VDDLOW] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_5,
},
[DA9052_IRQ_ALARM] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_6,
},
[DA9052_IRQ_SEQRDY] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_7,
},
[DA9052_IRQ_COMP1V2] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_8,
},
[DA9052_IRQ_NONKEY] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_1,
},
[DA9052_IRQ_IDFLOAT] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_2,
},
[DA9052_IRQ_IDGND] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_3,
},
[DA9052_IRQ_CHGEND] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_4,
},
[DA9052_IRQ_TBAT] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_5,
},
[DA9052_IRQ_ADC_EOM] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_6,
},
[DA9052_IRQ_PENDOWN] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_7,
},
[DA9052_IRQ_TSIREADY] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_8,
},
[DA9052_IRQ_GPI0] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_1,
},
[DA9052_IRQ_GPI1] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_2,
},
[DA9052_IRQ_GPI2] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_3,
},
[DA9052_IRQ_GPI3] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_4,
},
[DA9052_IRQ_GPI4] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_5,
},
[DA9052_IRQ_GPI5] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_6,
},
[DA9052_IRQ_GPI6] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_7,
},
[DA9052_IRQ_GPI7] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_8,
},
[DA9052_IRQ_GPI8] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_1,
},
[DA9052_IRQ_GPI9] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_2,
},
[DA9052_IRQ_GPI10] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_3,
},
[DA9052_IRQ_GPI11] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_4,
},
[DA9052_IRQ_GPI12] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_5,
},
[DA9052_IRQ_GPI13] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_6,
},
[DA9052_IRQ_GPI14] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_7,
},
[DA9052_IRQ_GPI15] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_8,
},
};
static struct regmap_irq_chip da9052_regmap_irq_chip = {
.name = "da9052_irq",
.status_base = DA9052_EVENT_A_REG,
.mask_base = DA9052_IRQ_MASK_A_REG,
.ack_base = DA9052_EVENT_A_REG,
.num_regs = DA9052_NUM_IRQ_REGS,
.irqs = da9052_irqs,
.num_irqs = ARRAY_SIZE(da9052_irqs),
};
struct regmap_config da9052_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
@ -769,15 +532,10 @@ struct regmap_config da9052_regmap_config = {
};
EXPORT_SYMBOL_GPL(da9052_regmap_config);
static int da9052_map_irq(struct da9052 *da9052, int irq)
{
return regmap_irq_get_virq(da9052->irq_data, irq);
}
int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id)
{
struct da9052_pdata *pdata = da9052->dev->platform_data;
int ret, i;
int ret;
mutex_init(&da9052->auxadc_lock);
init_completion(&da9052->done);
@ -787,22 +545,12 @@ int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id)
da9052->chip_id = chip_id;
ret = regmap_add_irq_chip(da9052->regmap, da9052->chip_irq,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
-1, &da9052_regmap_irq_chip,
&da9052->irq_data);
if (ret < 0) {
dev_err(da9052->dev, "regmap_add_irq_chip failed: %d\n", ret);
goto regmap_err;
ret = da9052_irq_init(da9052);
if (ret != 0) {
dev_err(da9052->dev, "da9052_irq_init failed: %d\n", ret);
return ret;
}
i = da9052_map_irq(da9052, DA9052_IRQ_ADC_EOM);
ret = request_threaded_irq(i, NULL, da9052_auxadc_irq,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
"adc-irq", da9052);
if (ret != 0)
dev_err(da9052->dev, "DA9052 ADC IRQ failed ret=%d\n", ret);
ret = mfd_add_devices(da9052->dev, -1, da9052_subdev_info,
ARRAY_SIZE(da9052_subdev_info), NULL, 0, NULL);
if (ret) {
@ -813,18 +561,15 @@ int __devinit da9052_device_init(struct da9052 *da9052, u8 chip_id)
return 0;
err:
free_irq(da9052_map_irq(da9052, DA9052_IRQ_ADC_EOM), da9052);
regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data);
mfd_remove_devices(da9052->dev);
regmap_err:
da9052_irq_exit(da9052);
return ret;
}
void da9052_device_exit(struct da9052 *da9052)
{
free_irq(da9052_map_irq(da9052, DA9052_IRQ_ADC_EOM), da9052);
regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data);
mfd_remove_devices(da9052->dev);
da9052_irq_exit(da9052);
}
MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");

288
drivers/mfd/da9052-irq.c Normal file
View File

@ -0,0 +1,288 @@
/*
* DA9052 interrupt support
*
* Author: Fabio Estevam <fabio.estevam@freescale.com>
* Based on arizona-irq.c, which is:
*
* Copyright 2012 Wolfson Microelectronics plc
*
* Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqdomain.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/mfd/da9052/da9052.h>
#include <linux/mfd/da9052/reg.h>
#define DA9052_NUM_IRQ_REGS 4
#define DA9052_IRQ_MASK_POS_1 0x01
#define DA9052_IRQ_MASK_POS_2 0x02
#define DA9052_IRQ_MASK_POS_3 0x04
#define DA9052_IRQ_MASK_POS_4 0x08
#define DA9052_IRQ_MASK_POS_5 0x10
#define DA9052_IRQ_MASK_POS_6 0x20
#define DA9052_IRQ_MASK_POS_7 0x40
#define DA9052_IRQ_MASK_POS_8 0x80
static struct regmap_irq da9052_irqs[] = {
[DA9052_IRQ_DCIN] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_1,
},
[DA9052_IRQ_VBUS] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_2,
},
[DA9052_IRQ_DCINREM] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_3,
},
[DA9052_IRQ_VBUSREM] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_4,
},
[DA9052_IRQ_VDDLOW] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_5,
},
[DA9052_IRQ_ALARM] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_6,
},
[DA9052_IRQ_SEQRDY] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_7,
},
[DA9052_IRQ_COMP1V2] = {
.reg_offset = 0,
.mask = DA9052_IRQ_MASK_POS_8,
},
[DA9052_IRQ_NONKEY] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_1,
},
[DA9052_IRQ_IDFLOAT] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_2,
},
[DA9052_IRQ_IDGND] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_3,
},
[DA9052_IRQ_CHGEND] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_4,
},
[DA9052_IRQ_TBAT] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_5,
},
[DA9052_IRQ_ADC_EOM] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_6,
},
[DA9052_IRQ_PENDOWN] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_7,
},
[DA9052_IRQ_TSIREADY] = {
.reg_offset = 1,
.mask = DA9052_IRQ_MASK_POS_8,
},
[DA9052_IRQ_GPI0] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_1,
},
[DA9052_IRQ_GPI1] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_2,
},
[DA9052_IRQ_GPI2] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_3,
},
[DA9052_IRQ_GPI3] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_4,
},
[DA9052_IRQ_GPI4] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_5,
},
[DA9052_IRQ_GPI5] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_6,
},
[DA9052_IRQ_GPI6] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_7,
},
[DA9052_IRQ_GPI7] = {
.reg_offset = 2,
.mask = DA9052_IRQ_MASK_POS_8,
},
[DA9052_IRQ_GPI8] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_1,
},
[DA9052_IRQ_GPI9] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_2,
},
[DA9052_IRQ_GPI10] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_3,
},
[DA9052_IRQ_GPI11] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_4,
},
[DA9052_IRQ_GPI12] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_5,
},
[DA9052_IRQ_GPI13] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_6,
},
[DA9052_IRQ_GPI14] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_7,
},
[DA9052_IRQ_GPI15] = {
.reg_offset = 3,
.mask = DA9052_IRQ_MASK_POS_8,
},
};
static struct regmap_irq_chip da9052_regmap_irq_chip = {
.name = "da9052_irq",
.status_base = DA9052_EVENT_A_REG,
.mask_base = DA9052_IRQ_MASK_A_REG,
.ack_base = DA9052_EVENT_A_REG,
.num_regs = DA9052_NUM_IRQ_REGS,
.irqs = da9052_irqs,
.num_irqs = ARRAY_SIZE(da9052_irqs),
};
static int da9052_map_irq(struct da9052 *da9052, int irq)
{
return regmap_irq_get_virq(da9052->irq_data, irq);
}
int da9052_enable_irq(struct da9052 *da9052, int irq)
{
irq = da9052_map_irq(da9052, irq);
if (irq < 0)
return irq;
enable_irq(irq);
return 0;
}
EXPORT_SYMBOL_GPL(da9052_enable_irq);
int da9052_disable_irq(struct da9052 *da9052, int irq)
{
irq = da9052_map_irq(da9052, irq);
if (irq < 0)
return irq;
disable_irq(irq);
return 0;
}
EXPORT_SYMBOL_GPL(da9052_disable_irq);
int da9052_disable_irq_nosync(struct da9052 *da9052, int irq)
{
irq = da9052_map_irq(da9052, irq);
if (irq < 0)
return irq;
disable_irq_nosync(irq);
return 0;
}
EXPORT_SYMBOL_GPL(da9052_disable_irq_nosync);
int da9052_request_irq(struct da9052 *da9052, int irq, char *name,
irq_handler_t handler, void *data)
{
irq = da9052_map_irq(da9052, irq);
if (irq < 0)
return irq;
return request_threaded_irq(irq, NULL, handler,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
name, data);
}
EXPORT_SYMBOL_GPL(da9052_request_irq);
void da9052_free_irq(struct da9052 *da9052, int irq, void *data)
{
irq = da9052_map_irq(da9052, irq);
if (irq < 0)
return;
free_irq(irq, data);
}
EXPORT_SYMBOL_GPL(da9052_free_irq);
static irqreturn_t da9052_auxadc_irq(int irq, void *irq_data)
{
struct da9052 *da9052 = irq_data;
complete(&da9052->done);
return IRQ_HANDLED;
}
int da9052_irq_init(struct da9052 *da9052)
{
int ret;
ret = regmap_add_irq_chip(da9052->regmap, da9052->chip_irq,
IRQF_TRIGGER_LOW | IRQF_ONESHOT,
-1, &da9052_regmap_irq_chip,
&da9052->irq_data);
if (ret < 0) {
dev_err(da9052->dev, "regmap_add_irq_chip failed: %d\n", ret);
goto regmap_err;
}
ret = da9052_request_irq(da9052, DA9052_IRQ_ADC_EOM, "adc-irq",
da9052_auxadc_irq, da9052);
if (ret != 0) {
dev_err(da9052->dev, "DA9052_IRQ_ADC_EOM failed: %d\n", ret);
goto request_irq_err;
}
return 0;
request_irq_err:
regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data);
regmap_err:
return ret;
}
int da9052_irq_exit(struct da9052 *da9052)
{
da9052_free_irq(da9052, DA9052_IRQ_ADC_EOM , da9052);
regmap_del_irq_chip(da9052->chip_irq, da9052->irq_data);
return 0;
}

10
include/linux/mfd/da9052/da9052.h
View File

@ -146,4 +146,14 @@ void da9052_device_exit(struct da9052 *da9052);
extern struct regmap_config da9052_regmap_config;
int da9052_irq_init(struct da9052 *da9052);
int da9052_irq_exit(struct da9052 *da9052);
int da9052_request_irq(struct da9052 *da9052, int irq, char *name,
irq_handler_t handler, void *data);
void da9052_free_irq(struct da9052 *da9052, int irq, void *data);
int da9052_enable_irq(struct da9052 *da9052, int irq);
int da9052_disable_irq(struct da9052 *da9052, int irq);
int da9052_disable_irq_nosync(struct da9052 *da9052, int irq);
#endif /* __MFD_DA9052_DA9052_H */