Commit 6c2fe5ca authored by Sebastian Reichel's avatar Sebastian Reichel

Merge tag 'tags/ib-mfd-iio-power-v5.8' into psy-next

This merges the MP2629 battery charge management immutable branch
between MFD, IIO and power-supply due for the v5.8 merge window
into power-supply for-next branch.
Signed-off-by: default avatarSebastian Reichel <sebastian.reichel@collabora.com>
parents c3d80522 904ac71f
What: /sys/class/power_supply/mp2629_battery/batt_impedance_compen
Date: April 2020
KernelVersion: 5.7
Description:
Represents a battery impedance compensation to accelerate charging.
Access: Read, Write
Valid values: Represented in milli-ohms. Valid range is [0, 140].
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/mps,mp2629.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MP2629 Battery Charger PMIC from Monolithic Power System.
maintainers:
- Saravanan Sekar <sravanhome@gmail.com>
description: |
MP2629 is a PMIC providing battery charging and power supply for smartphones,
wireless camera and portable devices. Chip is controlled over I2C.
The battery charge management device handles battery charger controller and
ADC IIO device for battery, system voltage
properties:
compatible:
const: mps,mp2629
reg:
maxItems: 1
interrupts:
maxItems: 1
interrupt-controller: true
"#interrupt-cells":
const: 2
description:
The first cell is the IRQ number, the second cell is the trigger type.
required:
- compatible
- reg
- interrupts
- interrupt-controller
- "#interrupt-cells"
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/input/linux-event-codes.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
pmic@4b {
compatible = "mps,mp2629";
reg = <0x4b>;
interrupt-controller;
interrupt-parent = <&gpio2>;
#interrupt-cells = <2>;
interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
};
};
...@@ -11395,10 +11395,15 @@ F: kernel/module.c ...@@ -11395,10 +11395,15 @@ F: kernel/module.c
MONOLITHIC POWER SYSTEM PMIC DRIVER MONOLITHIC POWER SYSTEM PMIC DRIVER
M: Saravanan Sekar <sravanhome@gmail.com> M: Saravanan Sekar <sravanhome@gmail.com>
S: Maintained S: Maintained
F: Documentation/devicetree/bindings/mfd/mps,mp2629.yaml
F: Documentation/devicetree/bindings/regulator/mps,mp*.yaml F: Documentation/devicetree/bindings/regulator/mps,mp*.yaml
F: drivers/iio/adc/mp2629_adc.c
F: drivers/mfd/mp2629.c
F: drivers/power/supply/mp2629_charger.c
F: drivers/regulator/mp5416.c F: drivers/regulator/mp5416.c
F: drivers/regulator/mpq7920.c F: drivers/regulator/mpq7920.c
F: drivers/regulator/mpq7920.h F: drivers/regulator/mpq7920.h
F: include/linux/mfd/mp2629.h
MOTION EYE VAIO PICTUREBOOK CAMERA DRIVER MOTION EYE VAIO PICTUREBOOK CAMERA DRIVER
S: Orphan S: Orphan
......
...@@ -692,6 +692,16 @@ config MESON_SARADC ...@@ -692,6 +692,16 @@ config MESON_SARADC
To compile this driver as a module, choose M here: the To compile this driver as a module, choose M here: the
module will be called meson_saradc. module will be called meson_saradc.
config MP2629_ADC
tristate "Monolithic MP2629 ADC driver"
depends on MFD_MP2629
help
Say yes to have support for battery charger IC MP2629 ADC device
accessed over I2C.
This driver provides ADC conversion of system, input power supply
and battery voltage & current information.
config NAU7802 config NAU7802
tristate "Nuvoton NAU7802 ADC driver" tristate "Nuvoton NAU7802 ADC driver"
depends on I2C depends on I2C
......
...@@ -65,6 +65,7 @@ obj-$(CONFIG_MCP3911) += mcp3911.o ...@@ -65,6 +65,7 @@ obj-$(CONFIG_MCP3911) += mcp3911.o
obj-$(CONFIG_MEDIATEK_MT6577_AUXADC) += mt6577_auxadc.o obj-$(CONFIG_MEDIATEK_MT6577_AUXADC) += mt6577_auxadc.o
obj-$(CONFIG_MEN_Z188_ADC) += men_z188_adc.o obj-$(CONFIG_MEN_Z188_ADC) += men_z188_adc.o
obj-$(CONFIG_MESON_SARADC) += meson_saradc.o obj-$(CONFIG_MESON_SARADC) += meson_saradc.o
obj-$(CONFIG_MP2629_ADC) += mp2629_adc.o
obj-$(CONFIG_MXS_LRADC_ADC) += mxs-lradc-adc.o obj-$(CONFIG_MXS_LRADC_ADC) += mxs-lradc-adc.o
obj-$(CONFIG_NAU7802) += nau7802.o obj-$(CONFIG_NAU7802) += nau7802.o
obj-$(CONFIG_NPCM_ADC) += npcm_adc.o obj-$(CONFIG_NPCM_ADC) += npcm_adc.o
......
// SPDX-License-Identifier: GPL-2.0-or-later
/*
* MP2629 Driver for ADC
*
* Copyright 2020 Monolithic Power Systems, Inc
*
* Author: Saravanan Sekar <sravanhome@gmail.com>
*/
#include <linux/iio/driver.h>
#include <linux/iio/iio.h>
#include <linux/iio/machine.h>
#include <linux/mfd/mp2629.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#define MP2629_REG_ADC_CTRL 0x03
#define MP2629_REG_BATT_VOLT 0x0e
#define MP2629_REG_SYSTEM_VOLT 0x0f
#define MP2629_REG_INPUT_VOLT 0x11
#define MP2629_REG_BATT_CURRENT 0x12
#define MP2629_REG_INPUT_CURRENT 0x13
#define MP2629_ADC_START BIT(7)
#define MP2629_ADC_CONTINUOUS BIT(6)
#define MP2629_MAP(_mp, _mpc) IIO_MAP(#_mp, "mp2629_charger", "mp2629-"_mpc)
#define MP2629_ADC_CHAN(_ch, _type) { \
.type = _type, \
.indexed = 1, \
.datasheet_name = #_ch, \
.channel = MP2629_ ## _ch, \
.address = MP2629_REG_ ## _ch, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
}
struct mp2629_adc {
struct regmap *regmap;
struct device *dev;
};
static struct iio_chan_spec mp2629_channels[] = {
MP2629_ADC_CHAN(BATT_VOLT, IIO_VOLTAGE),
MP2629_ADC_CHAN(SYSTEM_VOLT, IIO_VOLTAGE),
MP2629_ADC_CHAN(INPUT_VOLT, IIO_VOLTAGE),
MP2629_ADC_CHAN(BATT_CURRENT, IIO_CURRENT),
MP2629_ADC_CHAN(INPUT_CURRENT, IIO_CURRENT)
};
static struct iio_map mp2629_adc_maps[] = {
MP2629_MAP(BATT_VOLT, "batt-volt"),
MP2629_MAP(SYSTEM_VOLT, "system-volt"),
MP2629_MAP(INPUT_VOLT, "input-volt"),
MP2629_MAP(BATT_CURRENT, "batt-current"),
MP2629_MAP(INPUT_CURRENT, "input-current")
};
static int mp2629_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int *val, int *val2, long mask)
{
struct mp2629_adc *info = iio_priv(indio_dev);
unsigned int rval;
int ret;
switch (mask) {
case IIO_CHAN_INFO_RAW:
ret = regmap_read(info->regmap, chan->address, &rval);
if (ret)
return ret;
if (chan->address == MP2629_INPUT_VOLT)
rval &= GENMASK(6, 0);
*val = rval;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
switch (chan->channel) {
case MP2629_BATT_VOLT:
case MP2629_SYSTEM_VOLT:
*val = 20;
return IIO_VAL_INT;
case MP2629_INPUT_VOLT:
*val = 60;
return IIO_VAL_INT;
case MP2629_BATT_CURRENT:
*val = 175;
*val2 = 10;
return IIO_VAL_FRACTIONAL;
case MP2629_INPUT_CURRENT:
*val = 133;
*val2 = 10;
return IIO_VAL_FRACTIONAL;
default:
return -EINVAL;
}
default:
return -EINVAL;
}
}
static const struct iio_info mp2629_adc_info = {
.read_raw = &mp2629_read_raw,
};
static int mp2629_adc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct mp2629_data *ddata = dev_get_drvdata(dev->parent);
struct mp2629_adc *info;
struct iio_dev *indio_dev;
int ret;
indio_dev = devm_iio_device_alloc(dev, sizeof(*info));
if (!indio_dev)
return -ENOMEM;
info = iio_priv(indio_dev);
info->regmap = ddata->regmap;
info->dev = dev;
platform_set_drvdata(pdev, indio_dev);
ret = regmap_update_bits(info->regmap, MP2629_REG_ADC_CTRL,
MP2629_ADC_START | MP2629_ADC_CONTINUOUS,
MP2629_ADC_START | MP2629_ADC_CONTINUOUS);
if (ret) {
dev_err(dev, "adc enable fail: %d\n", ret);
return ret;
}
ret = iio_map_array_register(indio_dev, mp2629_adc_maps);
if (ret) {
dev_err(dev, "IIO maps register fail: %d\n", ret);
goto fail_disable;
}
indio_dev->name = "mp2629-adc";
indio_dev->dev.parent = dev;
indio_dev->channels = mp2629_channels;
indio_dev->num_channels = ARRAY_SIZE(mp2629_channels);
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &mp2629_adc_info;
ret = iio_device_register(indio_dev);
if (ret) {
dev_err(dev, "IIO device register fail: %d\n", ret);
goto fail_map_unregister;
}
return 0;
fail_map_unregister:
iio_map_array_unregister(indio_dev);
fail_disable:
regmap_update_bits(info->regmap, MP2629_REG_ADC_CTRL,
MP2629_ADC_CONTINUOUS, 0);
regmap_update_bits(info->regmap, MP2629_REG_ADC_CTRL,
MP2629_ADC_START, 0);
return ret;
}
static int mp2629_adc_remove(struct platform_device *pdev)
{
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
struct mp2629_adc *info = iio_priv(indio_dev);
iio_device_unregister(indio_dev);
iio_map_array_unregister(indio_dev);
regmap_update_bits(info->regmap, MP2629_REG_ADC_CTRL,
MP2629_ADC_CONTINUOUS, 0);
regmap_update_bits(info->regmap, MP2629_REG_ADC_CTRL,
MP2629_ADC_START, 0);
return 0;
}
static const struct of_device_id mp2629_adc_of_match[] = {
{ .compatible = "mps,mp2629_adc"},
{}
};
MODULE_DEVICE_TABLE(of, mp2629_adc_of_match);
static struct platform_driver mp2629_adc_driver = {
.driver = {
.name = "mp2629_adc",
.of_match_table = mp2629_adc_of_match,
},
.probe = mp2629_adc_probe,
.remove = mp2629_adc_remove,
};
module_platform_driver(mp2629_adc_driver);
MODULE_AUTHOR("Saravanan Sekar <sravanhome@gmail.com>");
MODULE_DESCRIPTION("MP2629 ADC driver");
MODULE_LICENSE("GPL");
...@@ -434,6 +434,15 @@ config MFD_MC13XXX_I2C ...@@ -434,6 +434,15 @@ config MFD_MC13XXX_I2C
help help
Select this if your MC13xxx is connected via an I2C bus. Select this if your MC13xxx is connected via an I2C bus.
config MFD_MP2629
tristate "Monolithic Power Systems MP2629 ADC and Battery charger"
depends on I2C
select REGMAP_I2C
help
Select this option to enable support for Monolithic Power Systems
battery charger. This provides ADC, thermal and battery charger power
management functions.
config MFD_MXS_LRADC config MFD_MXS_LRADC
tristate "Freescale i.MX23/i.MX28 LRADC" tristate "Freescale i.MX23/i.MX28 LRADC"
depends on ARCH_MXS || COMPILE_TEST depends on ARCH_MXS || COMPILE_TEST
......
...@@ -170,6 +170,8 @@ obj-$(CONFIG_MFD_MAX8925) += max8925.o ...@@ -170,6 +170,8 @@ obj-$(CONFIG_MFD_MAX8925) += max8925.o
obj-$(CONFIG_MFD_MAX8997) += max8997.o max8997-irq.o obj-$(CONFIG_MFD_MAX8997) += max8997.o max8997-irq.o
obj-$(CONFIG_MFD_MAX8998) += max8998.o max8998-irq.o obj-$(CONFIG_MFD_MAX8998) += max8998.o max8998-irq.o
obj-$(CONFIG_MFD_MP2629) += mp2629.o
pcf50633-objs := pcf50633-core.o pcf50633-irq.o pcf50633-objs := pcf50633-core.o pcf50633-irq.o
obj-$(CONFIG_MFD_PCF50633) += pcf50633.o obj-$(CONFIG_MFD_PCF50633) += pcf50633.o
obj-$(CONFIG_PCF50633_ADC) += pcf50633-adc.o obj-$(CONFIG_PCF50633_ADC) += pcf50633-adc.o
......
// SPDX-License-Identifier: GPL-2.0+
/*
* MP2629 parent driver for ADC and battery charger
*
* Copyright 2020 Monolithic Power Systems, Inc
*
* Author: Saravanan Sekar <sravanhome@gmail.com>
*/
#include <linux/i2c.h>
#include <linux/kernel.h>
#include <linux/mfd/core.h>
#include <linux/mfd/mp2629.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
static const struct mfd_cell mp2629_cell[] = {
{
.name = "mp2629_adc",
.of_compatible = "mps,mp2629_adc",
},
{
.name = "mp2629_charger",
.of_compatible = "mps,mp2629_charger",
}
};
static const struct regmap_config mp2629_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 0x17,
};
static int mp2629_probe(struct i2c_client *client)
{
struct mp2629_data *ddata;
int ret;
ddata = devm_kzalloc(&client->dev, sizeof(*ddata), GFP_KERNEL);
if (!ddata)
return -ENOMEM;
ddata->dev = &client->dev;
i2c_set_clientdata(client, ddata);
ddata->regmap = devm_regmap_init_i2c(client, &mp2629_regmap_config);
if (IS_ERR(ddata->regmap)) {
dev_err(ddata->dev, "Failed to allocate regmap\n");
return PTR_ERR(ddata->regmap);
}
ret = devm_mfd_add_devices(ddata->dev, PLATFORM_DEVID_AUTO, mp2629_cell,
ARRAY_SIZE(mp2629_cell), NULL, 0, NULL);
if (ret)
dev_err(ddata->dev, "Failed to register sub-devices %d\n", ret);
return ret;
}
static const struct of_device_id mp2629_of_match[] = {
{ .compatible = "mps,mp2629"},
{ }
};
MODULE_DEVICE_TABLE(of, mp2629_of_match);
static struct i2c_driver mp2629_driver = {
.driver = {
.name = "mp2629",
.of_match_table = mp2629_of_match,
},
.probe_new = mp2629_probe,
};
module_i2c_driver(mp2629_driver);
MODULE_AUTHOR("Saravanan Sekar <sravanhome@gmail.com>");
MODULE_DESCRIPTION("MP2629 Battery charger parent driver");
MODULE_LICENSE("GPL");
...@@ -552,6 +552,16 @@ config CHARGER_MAX8998 ...@@ -552,6 +552,16 @@ config CHARGER_MAX8998
Say Y to enable support for the battery charger control sysfs and Say Y to enable support for the battery charger control sysfs and
platform data of MAX8998/LP3974 PMICs. platform data of MAX8998/LP3974 PMICs.
config CHARGER_MP2629
tristate "Monolithic power system MP2629 Battery charger"
depends on MFD_MP2629
depends on MP2629_ADC
depends on IIO
help
Select this option to enable support for Monolithic power system
Battery charger. This driver provides Battery charger power management
functions on the systems.
config CHARGER_QCOM_SMBB config CHARGER_QCOM_SMBB
tristate "Qualcomm Switch-Mode Battery Charger and Boost" tristate "Qualcomm Switch-Mode Battery Charger and Boost"
depends on MFD_SPMI_PMIC || COMPILE_TEST depends on MFD_SPMI_PMIC || COMPILE_TEST
......
...@@ -76,6 +76,7 @@ obj-$(CONFIG_CHARGER_MAX77650) += max77650-charger.o ...@@ -76,6 +76,7 @@ obj-$(CONFIG_CHARGER_MAX77650) += max77650-charger.o
obj-$(CONFIG_CHARGER_MAX77693) += max77693_charger.o obj-$(CONFIG_CHARGER_MAX77693) += max77693_charger.o
obj-$(CONFIG_CHARGER_MAX8997) += max8997_charger.o obj-$(CONFIG_CHARGER_MAX8997) += max8997_charger.o
obj-$(CONFIG_CHARGER_MAX8998) += max8998_charger.o obj-$(CONFIG_CHARGER_MAX8998) += max8998_charger.o
obj-$(CONFIG_CHARGER_MP2629) += mp2629_charger.o
obj-$(CONFIG_CHARGER_QCOM_SMBB) += qcom_smbb.o obj-$(CONFIG_CHARGER_QCOM_SMBB) += qcom_smbb.o
obj-$(CONFIG_CHARGER_BQ2415X) += bq2415x_charger.o obj-$(CONFIG_CHARGER_BQ2415X) += bq2415x_charger.o
obj-$(CONFIG_CHARGER_BQ24190) += bq24190_charger.o obj-$(CONFIG_CHARGER_BQ24190) += bq24190_charger.o
......
This diff is collapsed.
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright 2020 Monolithic Power Systems, Inc
*/
#ifndef __MP2629_H__
#define __MP2629_H__
#include <linux/device.h>
#include <linux/regmap.h>
struct mp2629_data {
struct device *dev;
struct regmap *regmap;
};
enum mp2629_adc_chan {
MP2629_BATT_VOLT,
MP2629_SYSTEM_VOLT,
MP2629_INPUT_VOLT,
MP2629_BATT_CURRENT,
MP2629_INPUT_CURRENT,
MP2629_ADC_CHAN_END
};
#endif
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