mfd: tps65086: Add driver for the TPS65086 PMIC

Add support for the TPS65912 device. It provides communication
through I2C and contains the following components:

 - Regulators
 - Load switches
 - GPO controller

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Andrew F. Davis 2016-01-25 09:50:11 -06:00 committed by Lee Jones
parent a85b9e0b3c
commit b45b719ee0
4 changed files with 280 additions and 0 deletions

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@ -1130,6 +1130,19 @@ config TPS6507X
This driver can also be built as a module. If so, the module
will be called tps6507x.
config MFD_TPS65086
tristate "TI TPS65086 Power Management Integrated Chips (PMICs)"
select REGMAP
select REGMAP_IRQ
select REGMAP_I2C
depends on I2C
help
If you say yes here you get support for the TPS65086 series of
Power Management chips.
This driver provides common support for accessing the device,
additional drivers must be enabled in order to use the
functionality of the device.
config TPS65911_COMPARATOR
tristate

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@ -70,6 +70,7 @@ obj-$(CONFIG_MFD_WM8994) += wm8994.o
obj-$(CONFIG_TPS6105X) += tps6105x.o
obj-$(CONFIG_TPS65010) += tps65010.o
obj-$(CONFIG_TPS6507X) += tps6507x.o
obj-$(CONFIG_MFD_TPS65086) += tps65086.o
obj-$(CONFIG_MFD_TPS65217) += tps65217.o
obj-$(CONFIG_MFD_TPS65218) += tps65218.o
obj-$(CONFIG_MFD_TPS65910) += tps65910.o

149
drivers/mfd/tps65086.c Normal file
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@ -0,0 +1,149 @@
/*
* Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
* Andrew F. Davis <afd@ti.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.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether expressed or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License version 2 for more details.
*
* Based on the TPS65912 driver
*/
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/mfd/core.h>
#include <linux/module.h>
#include <linux/mfd/tps65086.h>
static const struct mfd_cell tps65086_cells[] = {
{ .name = "tps65086-regulator", },
{ .name = "tps65086-gpio", },
};
static const struct regmap_range tps65086_yes_ranges[] = {
regmap_reg_range(TPS65086_IRQ, TPS65086_IRQ),
regmap_reg_range(TPS65086_PMICSTAT, TPS65086_SHUTDNSRC),
regmap_reg_range(TPS65086_GPOCTRL, TPS65086_GPOCTRL),
regmap_reg_range(TPS65086_PG_STATUS1, TPS65086_OC_STATUS),
};
static const struct regmap_access_table tps65086_volatile_table = {
.yes_ranges = tps65086_yes_ranges,
.n_yes_ranges = ARRAY_SIZE(tps65086_yes_ranges),
};
static const struct regmap_config tps65086_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.cache_type = REGCACHE_RBTREE,
.volatile_table = &tps65086_volatile_table,
};
static const struct regmap_irq tps65086_irqs[] = {
REGMAP_IRQ_REG(TPS65086_IRQ_DIETEMP, 0, TPS65086_IRQ_DIETEMP_MASK),
REGMAP_IRQ_REG(TPS65086_IRQ_SHUTDN, 0, TPS65086_IRQ_SHUTDN_MASK),
REGMAP_IRQ_REG(TPS65086_IRQ_FAULT, 0, TPS65086_IRQ_FAULT_MASK),
};
static struct regmap_irq_chip tps65086_irq_chip = {
.name = "tps65086",
.status_base = TPS65086_IRQ,
.mask_base = TPS65086_IRQ_MASK,
.ack_base = TPS65086_IRQ,
.init_ack_masked = true,
.num_regs = 1,
.irqs = tps65086_irqs,
.num_irqs = ARRAY_SIZE(tps65086_irqs),
};
static const struct of_device_id tps65086_of_match_table[] = {
{ .compatible = "ti,tps65086", },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, tps65086_of_match_table);
static int tps65086_probe(struct i2c_client *client,
const struct i2c_device_id *ids)
{
struct tps65086 *tps;
unsigned int version;
int ret;
tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
if (!tps)
return -ENOMEM;
i2c_set_clientdata(client, tps);
tps->dev = &client->dev;
tps->irq = client->irq;
tps->regmap = devm_regmap_init_i2c(client, &tps65086_regmap_config);
if (IS_ERR(tps->regmap)) {
dev_err(tps->dev, "Failed to initialize register map\n");
return PTR_ERR(tps->regmap);
}
ret = regmap_read(tps->regmap, TPS65086_DEVICEID, &version);
if (ret) {
dev_err(tps->dev, "Failed to read revision register\n");
return ret;
}
dev_info(tps->dev, "Device: TPS65086%01lX, OTP: %c, Rev: %ld\n",
(version & TPS65086_DEVICEID_PART_MASK),
(char)((version & TPS65086_DEVICEID_OTP_MASK) >> 4) + 'A',
(version & TPS65086_DEVICEID_REV_MASK) >> 6);
ret = regmap_add_irq_chip(tps->regmap, tps->irq, IRQF_ONESHOT, 0,
&tps65086_irq_chip, &tps->irq_data);
if (ret) {
dev_err(tps->dev, "Failed to register IRQ chip\n");
return ret;
}
ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65086_cells,
ARRAY_SIZE(tps65086_cells), NULL, 0,
regmap_irq_get_domain(tps->irq_data));
if (ret) {
regmap_del_irq_chip(tps->irq, tps->irq_data);
return ret;
}
return 0;
}
static int tps65086_remove(struct i2c_client *client)
{
struct tps65086 *tps = i2c_get_clientdata(client);
regmap_del_irq_chip(tps->irq, tps->irq_data);
return 0;
}
static const struct i2c_device_id tps65086_id_table[] = {
{ "tps65086", 0 },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(i2c, tps65086_id_table);
static struct i2c_driver tps65086_driver = {
.driver = {
.name = "tps65086",
.of_match_table = tps65086_of_match_table,
},
.probe = tps65086_probe,
.remove = tps65086_remove,
.id_table = tps65086_id_table,
};
module_i2c_driver(tps65086_driver);
MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
MODULE_DESCRIPTION("TPS65086 PMIC Driver");
MODULE_LICENSE("GPL v2");

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@ -0,0 +1,117 @@
/*
* Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
* Andrew F. Davis <afd@ti.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.
*
* This program is distributed "as is" WITHOUT ANY WARRANTY of any
* kind, whether expressed or implied; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License version 2 for more details.
*
* Based on the TPS65912 driver
*/
#ifndef __LINUX_MFD_TPS65086_H
#define __LINUX_MFD_TPS65086_H
#include <linux/device.h>
#include <linux/regmap.h>
/* List of registers for TPS65086 */
#define TPS65086_DEVICEID 0x01
#define TPS65086_IRQ 0x02
#define TPS65086_IRQ_MASK 0x03
#define TPS65086_PMICSTAT 0x04
#define TPS65086_SHUTDNSRC 0x05
#define TPS65086_BUCK1CTRL 0x20
#define TPS65086_BUCK2CTRL 0x21
#define TPS65086_BUCK3DECAY 0x22
#define TPS65086_BUCK3VID 0x23
#define TPS65086_BUCK3SLPCTRL 0x24
#define TPS65086_BUCK4CTRL 0x25
#define TPS65086_BUCK5CTRL 0x26
#define TPS65086_BUCK6CTRL 0x27
#define TPS65086_LDOA2CTRL 0x28
#define TPS65086_LDOA3CTRL 0x29
#define TPS65086_DISCHCTRL1 0x40
#define TPS65086_DISCHCTRL2 0x41
#define TPS65086_DISCHCTRL3 0x42
#define TPS65086_PG_DELAY1 0x43
#define TPS65086_FORCESHUTDN 0x91
#define TPS65086_BUCK1SLPCTRL 0x92
#define TPS65086_BUCK2SLPCTRL 0x93
#define TPS65086_BUCK4VID 0x94
#define TPS65086_BUCK4SLPVID 0x95
#define TPS65086_BUCK5VID 0x96
#define TPS65086_BUCK5SLPVID 0x97
#define TPS65086_BUCK6VID 0x98
#define TPS65086_BUCK6SLPVID 0x99
#define TPS65086_LDOA2VID 0x9A
#define TPS65086_LDOA3VID 0x9B
#define TPS65086_BUCK123CTRL 0x9C
#define TPS65086_PG_DELAY2 0x9D
#define TPS65086_PIN_EN_MASK1 0x9E
#define TPS65086_PIN_EN_MASK2 0x9F
#define TPS65086_SWVTT_EN 0x9F
#define TPS65086_PIN_EN_OVR1 0xA0
#define TPS65086_PIN_EN_OVR2 0xA1
#define TPS65086_GPOCTRL 0xA1
#define TPS65086_PWR_FAULT_MASK1 0xA2
#define TPS65086_PWR_FAULT_MASK2 0xA3
#define TPS65086_GPO1PG_CTRL1 0xA4
#define TPS65086_GPO1PG_CTRL2 0xA5
#define TPS65086_GPO4PG_CTRL1 0xA6
#define TPS65086_GPO4PG_CTRL2 0xA7
#define TPS65086_GPO2PG_CTRL1 0xA8
#define TPS65086_GPO2PG_CTRL2 0xA9
#define TPS65086_GPO3PG_CTRL1 0xAA
#define TPS65086_GPO3PG_CTRL2 0xAB
#define TPS65086_LDOA1CTRL 0xAE
#define TPS65086_PG_STATUS1 0xB0
#define TPS65086_PG_STATUS2 0xB1
#define TPS65086_PWR_FAULT_STATUS1 0xB2
#define TPS65086_PWR_FAULT_STATUS2 0xB3
#define TPS65086_TEMPCRIT 0xB4
#define TPS65086_TEMPHOT 0xB5
#define TPS65086_OC_STATUS 0xB6
/* IRQ Register field definitions */
#define TPS65086_IRQ_DIETEMP_MASK BIT(0)
#define TPS65086_IRQ_SHUTDN_MASK BIT(3)
#define TPS65086_IRQ_FAULT_MASK BIT(7)
/* DEVICEID Register field definitions */
#define TPS65086_DEVICEID_PART_MASK GENMASK(3, 0)
#define TPS65086_DEVICEID_OTP_MASK GENMASK(5, 4)
#define TPS65086_DEVICEID_REV_MASK GENMASK(7, 6)
/* VID Masks */
#define BUCK_VID_MASK GENMASK(7, 1)
#define VDOA1_VID_MASK GENMASK(4, 1)
#define VDOA23_VID_MASK GENMASK(3, 0)
/* Define the TPS65086 IRQ numbers */
enum tps65086_irqs {
TPS65086_IRQ_DIETEMP,
TPS65086_IRQ_SHUTDN,
TPS65086_IRQ_FAULT,
};
/**
* struct tps65086 - state holder for the tps65086 driver
*
* Device data may be used to access the TPS65086 chip
*/
struct tps65086 {
struct device *dev;
struct regmap *regmap;
/* IRQ Data */
int irq;
struct regmap_irq_chip_data *irq_data;
};
#endif /* __LINUX_MFD_TPS65086_H */