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Merge branches 'ib-mfd-clk-4.6', 'ib-mfd-input-iio-4.6', 'ib-mfd-regulator-4.6' and 'ib-mfd-regulator-gpio-4.6' into ibs-for-mfd-merged

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This commit is contained in:
Lee Jones 2016-03-09 12:56:47 +07:00
commit bab070620e
30 changed files with 2384 additions and 1368 deletions
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54
drivers/mfd/Kconfig
View file

@ -91,14 +91,29 @@ config MFD_BCM590XX
Support for the BCM590xx PMUs from Broadcom
config MFD_AXP20X
bool "X-Powers AXP20X"
tristate
select MFD_CORE
select REGMAP_I2C
select REGMAP_IRQ
depends on I2C=y
config MFD_AXP20X_I2C
tristate "X-Powers AXP series PMICs with I2C"
select MFD_AXP20X
select REGMAP_I2C
depends on I2C
help
If you say Y here you get support for the X-Powers AXP202, AXP209 and
AXP288 power management IC (PMIC).
If you say Y here you get support for the X-Powers AXP series power
management ICs (PMICs) controlled with I2C.
This driver include only the core APIs. You have to select individual
components like regulators or the PEK (Power Enable Key) under the
corresponding menus.
config MFD_AXP20X_RSB
tristate "X-Powers AXP series PMICs with RSB"
select MFD_AXP20X
depends on SUNXI_RSB
help
If you say Y here you get support for the X-Powers AXP series power
management ICs (PMICs) controlled with RSB.
This driver include only the core APIs. You have to select individual
components like regulators or the PEK (Power Enable Key) under the
corresponding menus.
@ -271,6 +286,15 @@ config MFD_MC13XXX_I2C
help
Select this if your MC13xxx is connected via an I2C bus.
config MFD_MX25_TSADC
tristate "Freescale i.MX25 integrated Touchscreen and ADC unit"
select REGMAP_MMIO
depends on (SOC_IMX25 && OF) || COMPILE_TEST
help
Enable support for the integrated Touchscreen and ADC unit of the
i.MX25 processors. They consist of a conversion queue for general
purpose ADC and a queue for Touchscreens.
config MFD_HI6421_PMIC
tristate "HiSilicon Hi6421 PMU/Codec IC"
depends on OF
@ -1181,27 +1205,25 @@ config MFD_TPS65910
Power Management chips.
config MFD_TPS65912
bool "TI TPS65912 Power Management chip"
depends on GPIOLIB
tristate
select MFD_CORE
help
If you say yes here you get support for the TPS65912 series of
PM chips.
select REGMAP
select REGMAP_IRQ
config MFD_TPS65912_I2C
bool "TI TPS65912 Power Management chip with I2C"
select MFD_CORE
tristate "TI TPS65912 Power Management chip with I2C"
select MFD_TPS65912
depends on I2C=y && GPIOLIB
select REGMAP_I2C
depends on I2C
help
If you say yes here you get support for the TPS65912 series of
PM chips with I2C interface.
config MFD_TPS65912_SPI
bool "TI TPS65912 Power Management chip with SPI"
select MFD_CORE
tristate "TI TPS65912 Power Management chip with SPI"
select MFD_TPS65912
depends on SPI_MASTER && GPIOLIB
select REGMAP_SPI
depends on SPI_MASTER
help
If you say yes here you get support for the TPS65912 series of
PM chips with SPI interface.

7
drivers/mfd/Makefile
View file

@ -73,8 +73,7 @@ obj-$(CONFIG_TPS6507X) += tps6507x.o
obj-$(CONFIG_MFD_TPS65217) += tps65217.o
obj-$(CONFIG_MFD_TPS65218) += tps65218.o
obj-$(CONFIG_MFD_TPS65910) += tps65910.o
tps65912-objs := tps65912-core.o tps65912-irq.o
obj-$(CONFIG_MFD_TPS65912) += tps65912.o
obj-$(CONFIG_MFD_TPS65912) += tps65912-core.o
obj-$(CONFIG_MFD_TPS65912_I2C) += tps65912-i2c.o
obj-$(CONFIG_MFD_TPS65912_SPI) += tps65912-spi.o
obj-$(CONFIG_MFD_TPS80031) += tps80031.o
@ -85,6 +84,8 @@ obj-$(CONFIG_TWL4030_POWER) += twl4030-power.o
obj-$(CONFIG_MFD_TWL4030_AUDIO) += twl4030-audio.o
obj-$(CONFIG_TWL6040_CORE) += twl6040.o
obj-$(CONFIG_MFD_MX25_TSADC) += fsl-imx25-tsadc.o
obj-$(CONFIG_MFD_MC13XXX) += mc13xxx-core.o
obj-$(CONFIG_MFD_MC13XXX_SPI) += mc13xxx-spi.o
obj-$(CONFIG_MFD_MC13XXX_I2C) += mc13xxx-i2c.o
@ -111,6 +112,8 @@ obj-$(CONFIG_PMIC_DA9052) += da9052-core.o
obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o
obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o
obj-$(CONFIG_MFD_AXP20X) += axp20x.o
obj-$(CONFIG_MFD_AXP20X_I2C) += axp20x-i2c.o
obj-$(CONFIG_MFD_AXP20X_RSB) += axp20x-rsb.o
obj-$(CONFIG_MFD_LP3943) += lp3943.o
obj-$(CONFIG_MFD_LP8788) += lp8788.o lp8788-irq.o

104
drivers/mfd/axp20x-i2c.c Normal file
View file

@ -0,0 +1,104 @@
/*
* I2C driver for the X-Powers' Power Management ICs
*
* AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC
* converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature
* as well as configurable GPIOs.
*
* This driver supports the I2C variants.
*
* Copyright (C) 2014 Carlo Caione
*
* Author: Carlo Caione <carlo@caione.org>
*
* 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/acpi.h>
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/mfd/axp20x.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/slab.h>
static int axp20x_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct axp20x_dev *axp20x;
int ret;
axp20x = devm_kzalloc(&i2c->dev, sizeof(*axp20x), GFP_KERNEL);
if (!axp20x)
return -ENOMEM;
axp20x->dev = &i2c->dev;
axp20x->irq = i2c->irq;
dev_set_drvdata(axp20x->dev, axp20x);
ret = axp20x_match_device(axp20x);
if (ret)
return ret;
axp20x->regmap = devm_regmap_init_i2c(i2c, axp20x->regmap_cfg);
if (IS_ERR(axp20x->regmap)) {
ret = PTR_ERR(axp20x->regmap);
dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
return ret;
}
return axp20x_device_probe(axp20x);
}
static int axp20x_i2c_remove(struct i2c_client *i2c)
{
struct axp20x_dev *axp20x = i2c_get_clientdata(i2c);
return axp20x_device_remove(axp20x);
}
static const struct of_device_id axp20x_i2c_of_match[] = {
{ .compatible = "x-powers,axp152", .data = (void *)AXP152_ID },
{ .compatible = "x-powers,axp202", .data = (void *)AXP202_ID },
{ .compatible = "x-powers,axp209", .data = (void *)AXP209_ID },
{ .compatible = "x-powers,axp221", .data = (void *)AXP221_ID },
{ },
};
MODULE_DEVICE_TABLE(of, axp20x_i2c_of_match);
/*
* This is useless for OF-enabled devices, but it is needed by I2C subsystem
*/
static const struct i2c_device_id axp20x_i2c_id[] = {
{ },
};
MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id);
static const struct acpi_device_id axp20x_i2c_acpi_match[] = {
{
.id = "INT33F4",
.driver_data = AXP288_ID,
},
{ },
};
MODULE_DEVICE_TABLE(acpi, axp20x_i2c_acpi_match);
static struct i2c_driver axp20x_i2c_driver = {
.driver = {
.name = "axp20x-i2c",
.of_match_table = of_match_ptr(axp20x_i2c_of_match),
.acpi_match_table = ACPI_PTR(axp20x_i2c_acpi_match),
},
.probe = axp20x_i2c_probe,
.remove = axp20x_i2c_remove,
.id_table = axp20x_i2c_id,
};
module_i2c_driver(axp20x_i2c_driver);
MODULE_DESCRIPTION("PMIC MFD I2C driver for AXP20X");
MODULE_AUTHOR("Carlo Caione <[email protected]>");
MODULE_LICENSE("GPL");

80
drivers/mfd/axp20x-rsb.c Normal file
View file

@ -0,0 +1,80 @@
/*
* RSB driver for the X-Powers' Power Management ICs
*
* AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC
* converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature
* as well as configurable GPIOs.
*
* This driver supports the RSB variants.
*
* Copyright (C) 2015 Chen-Yu Tsai
*
* Author: Chen-Yu Tsai <wens@csie.org>
*
* 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/acpi.h>
#include <linux/err.h>
#include <linux/mfd/axp20x.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/sunxi-rsb.h>
static int axp20x_rsb_probe(struct sunxi_rsb_device *rdev)
{
struct axp20x_dev *axp20x;
int ret;
axp20x = devm_kzalloc(&rdev->dev, sizeof(*axp20x), GFP_KERNEL);
if (!axp20x)
return -ENOMEM;
axp20x->dev = &rdev->dev;
axp20x->irq = rdev->irq;
dev_set_drvdata(&rdev->dev, axp20x);
ret = axp20x_match_device(axp20x);
if (ret)
return ret;
axp20x->regmap = devm_regmap_init_sunxi_rsb(rdev, axp20x->regmap_cfg);
if (IS_ERR(axp20x->regmap)) {
ret = PTR_ERR(axp20x->regmap);
dev_err(&rdev->dev, "regmap init failed: %d\n", ret);
return ret;
}
return axp20x_device_probe(axp20x);
}
static int axp20x_rsb_remove(struct sunxi_rsb_device *rdev)
{
struct axp20x_dev *axp20x = sunxi_rsb_device_get_drvdata(rdev);
return axp20x_device_remove(axp20x);
}
static const struct of_device_id axp20x_rsb_of_match[] = {
{ .compatible = "x-powers,axp223", .data = (void *)AXP223_ID },
{ },
};
MODULE_DEVICE_TABLE(of, axp20x_rsb_of_match);
static struct sunxi_rsb_driver axp20x_rsb_driver = {
.driver = {
.name = "axp20x-rsb",
.of_match_table = of_match_ptr(axp20x_rsb_of_match),
},
.probe = axp20x_rsb_probe,
.remove = axp20x_rsb_remove,
};
module_sunxi_rsb_driver(axp20x_rsb_driver);
MODULE_DESCRIPTION("PMIC MFD sunXi RSB driver for AXP20X");
MODULE_AUTHOR("Chen-Yu Tsai <[email protected]>");
MODULE_LICENSE("GPL v2");

105
drivers/mfd/axp20x.c
View file

@ -1,10 +1,14 @@
/*
* axp20x.c - MFD core driver for the X-Powers' Power Management ICs
* MFD core driver for the X-Powers' Power Management ICs
*
* AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC
* converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature
* as well as configurable GPIOs.
*
* This file contains the interface independent core functions.
*
* Copyright (C) 2014 Carlo Caione
*
* Author: Carlo Caione <carlo@caione.org>
*
* This program is free software; you can redistribute it and/or modify
@ -13,18 +17,15 @@
*/
#include <linux/err.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/regulator/consumer.h>
#include <linux/mfd/axp20x.h>
#include <linux/mfd/core.h>
#include <linux/of_device.h>
#include <linux/of_irq.h>
#include <linux/acpi.h>
#define AXP20X_OFF 0x80
@ -34,6 +35,7 @@ static const char * const axp20x_model_names[] = {
"AXP202",
"AXP209",
"AXP221",
"AXP223",
"AXP288",
};
@ -376,32 +378,6 @@ static const struct regmap_irq axp288_regmap_irqs[] = {
INIT_REGMAP_IRQ(AXP288, BC_USB_CHNG, 5, 1),
};
static const struct of_device_id axp20x_of_match[] = {
{ .compatible = "x-powers,axp152", .data = (void *) AXP152_ID },
{ .compatible = "x-powers,axp202", .data = (void *) AXP202_ID },
{ .compatible = "x-powers,axp209", .data = (void *) AXP209_ID },
{ .compatible = "x-powers,axp221", .data = (void *) AXP221_ID },
{ },
};
MODULE_DEVICE_TABLE(of, axp20x_of_match);
/*
* This is useless for OF-enabled devices, but it is needed by I2C subsystem
*/
static const struct i2c_device_id axp20x_i2c_id[] = {
{ },
};
MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id);
static const struct acpi_device_id axp20x_acpi_match[] = {
{
.id = "INT33F4",
.driver_data = AXP288_ID,
},
{ },
};
MODULE_DEVICE_TABLE(acpi, axp20x_acpi_match);
static const struct regmap_irq_chip axp152_regmap_irq_chip = {
.name = "axp152_irq_chip",
.status_base = AXP152_IRQ1_STATE,
@ -606,25 +582,26 @@ static void axp20x_power_off(void)
AXP20X_OFF);
}
static int axp20x_match_device(struct axp20x_dev *axp20x, struct device *dev)
int axp20x_match_device(struct axp20x_dev *axp20x)
{
struct device *dev = axp20x->dev;
const struct acpi_device_id *acpi_id;
const struct of_device_id *of_id;
if (dev->of_node) {
of_id = of_match_device(axp20x_of_match, dev);
of_id = of_match_device(dev->driver->of_match_table, dev);
if (!of_id) {
dev_err(dev, "Unable to match OF ID\n");
return -ENODEV;
}
axp20x->variant = (long) of_id->data;
axp20x->variant = (long)of_id->data;
} else {
acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!acpi_id || !acpi_id->driver_data) {
dev_err(dev, "Unable to match ACPI ID and data\n");
return -ENODEV;
}
axp20x->variant = (long) acpi_id->driver_data;
axp20x->variant = (long)acpi_id->driver_data;
}
switch (axp20x->variant) {
@ -642,6 +619,7 @@ static int axp20x_match_device(struct axp20x_dev *axp20x, struct device *dev)
axp20x->regmap_irq_chip = &axp20x_regmap_irq_chip;
break;
case AXP221_ID:
case AXP223_ID:
axp20x->nr_cells = ARRAY_SIZE(axp22x_cells);
axp20x->cells = axp22x_cells;
axp20x->regmap_cfg = &axp22x_regmap_config;
@ -658,51 +636,31 @@ static int axp20x_match_device(struct axp20x_dev *axp20x, struct device *dev)
return -EINVAL;
}
dev_info(dev, "AXP20x variant %s found\n",
axp20x_model_names[axp20x->variant]);
axp20x_model_names[axp20x->variant]);
return 0;
}
EXPORT_SYMBOL(axp20x_match_device);
static int axp20x_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
int axp20x_device_probe(struct axp20x_dev *axp20x)
{
struct axp20x_dev *axp20x;
int ret;
axp20x = devm_kzalloc(&i2c->dev, sizeof(*axp20x), GFP_KERNEL);
if (!axp20x)
return -ENOMEM;
ret = axp20x_match_device(axp20x, &i2c->dev);
if (ret)
return ret;
axp20x->i2c_client = i2c;
axp20x->dev = &i2c->dev;
dev_set_drvdata(axp20x->dev, axp20x);
axp20x->regmap = devm_regmap_init_i2c(i2c, axp20x->regmap_cfg);
if (IS_ERR(axp20x->regmap)) {
ret = PTR_ERR(axp20x->regmap);
dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
return ret;
}
ret = regmap_add_irq_chip(axp20x->regmap, i2c->irq,
ret = regmap_add_irq_chip(axp20x->regmap, axp20x->irq,
IRQF_ONESHOT | IRQF_SHARED, -1,
axp20x->regmap_irq_chip,
&axp20x->regmap_irqc);
if (ret) {
dev_err(&i2c->dev, "failed to add irq chip: %d\n", ret);
dev_err(axp20x->dev, "failed to add irq chip: %d\n", ret);
return ret;
}
ret = mfd_add_devices(axp20x->dev, -1, axp20x->cells,
axp20x->nr_cells, NULL, 0, NULL);
axp20x->nr_cells, NULL, 0, NULL);
if (ret) {
dev_err(&i2c->dev, "failed to add MFD devices: %d\n", ret);
regmap_del_irq_chip(i2c->irq, axp20x->regmap_irqc);
dev_err(axp20x->dev, "failed to add MFD devices: %d\n", ret);
regmap_del_irq_chip(axp20x->irq, axp20x->regmap_irqc);
return ret;
}
@ -711,38 +669,25 @@ static int axp20x_i2c_probe(struct i2c_client *i2c,
pm_power_off = axp20x_power_off;
}
dev_info(&i2c->dev, "AXP20X driver loaded\n");
dev_info(axp20x->dev, "AXP20X driver loaded\n");
return 0;
}
EXPORT_SYMBOL(axp20x_device_probe);
static int axp20x_i2c_remove(struct i2c_client *i2c)
int axp20x_device_remove(struct axp20x_dev *axp20x)
{
struct axp20x_dev *axp20x = i2c_get_clientdata(i2c);
if (axp20x == axp20x_pm_power_off) {
axp20x_pm_power_off = NULL;
pm_power_off = NULL;
}
mfd_remove_devices(axp20x->dev);
regmap_del_irq_chip(axp20x->i2c_client->irq, axp20x->regmap_irqc);
regmap_del_irq_chip(axp20x->irq, axp20x->regmap_irqc);
return 0;
}
static struct i2c_driver axp20x_i2c_driver = {
.driver = {
.name = "axp20x",
.of_match_table = of_match_ptr(axp20x_of_match),
.acpi_match_table = ACPI_PTR(axp20x_acpi_match),
},
.probe = axp20x_i2c_probe,
.remove = axp20x_i2c_remove,
.id_table = axp20x_i2c_id,
};
module_i2c_driver(axp20x_i2c_driver);
EXPORT_SYMBOL(axp20x_device_remove);
MODULE_DESCRIPTION("PMIC MFD core driver for AXP20X");
MODULE_AUTHOR("Carlo Caione <[email protected]>");

203
drivers/mfd/fsl-imx25-tsadc.c Normal file
View file

@ -0,0 +1,203 @@
/*
* Copyright (C) 2014-2015 Pengutronix, Markus Pargmann <mpa@pengutronix.de>
*
* 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/clk.h>
#include <linux/interrupt.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/irqdesc.h>
#include <linux/irqdomain.h>
#include <linux/irq.h>
#include <linux/mfd/imx25-tsadc.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
static struct regmap_config mx25_tsadc_regmap_config = {
.fast_io = true,
.max_register = 8,
.reg_bits = 32,
.val_bits = 32,
.reg_stride = 4,
};
static void mx25_tsadc_irq_handler(struct irq_desc *desc)
{
struct mx25_tsadc *tsadc = irq_desc_get_handler_data(desc);
struct irq_chip *chip = irq_desc_get_chip(desc);
u32 status;
chained_irq_enter(chip, desc);
regmap_read(tsadc->regs, MX25_TSC_TGSR, &status);
if (status & MX25_TGSR_GCQ_INT)
generic_handle_irq(irq_find_mapping(tsadc->domain, 1));
if (status & MX25_TGSR_TCQ_INT)
generic_handle_irq(irq_find_mapping(tsadc->domain, 0));
chained_irq_exit(chip, desc);
}
static int mx25_tsadc_domain_map(struct irq_domain *d, unsigned int irq,
irq_hw_number_t hwirq)
{
struct mx25_tsadc *tsadc = d->host_data;
irq_set_chip_data(irq, tsadc);
irq_set_chip_and_handler(irq, &dummy_irq_chip,
handle_level_irq);
irq_modify_status(irq, IRQ_NOREQUEST, IRQ_NOPROBE);
return 0;
}
static struct irq_domain_ops mx25_tsadc_domain_ops = {
.map = mx25_tsadc_domain_map,
.xlate = irq_domain_xlate_onecell,
};
static int mx25_tsadc_setup_irq(struct platform_device *pdev,
struct mx25_tsadc *tsadc)
{
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
int irq;
irq = platform_get_irq(pdev, 0);
if (irq <= 0) {
dev_err(dev, "Failed to get irq\n");
return irq;
}
tsadc->domain = irq_domain_add_simple(np, 2, 0, &mx25_tsadc_domain_ops,
tsadc);
if (!tsadc->domain) {
dev_err(dev, "Failed to add irq domain\n");
return -ENOMEM;
}
irq_set_chained_handler(irq, mx25_tsadc_irq_handler);
irq_set_handler_data(irq, tsadc);
return 0;
}
static void mx25_tsadc_setup_clk(struct platform_device *pdev,
struct mx25_tsadc *tsadc)
{
unsigned clk_div;
/*
* According to the datasheet the ADC clock should never
* exceed 1,75 MHz. Base clock is the IPG and the ADC unit uses
* a funny clock divider. To keep the ADC conversion time constant
* adapt the ADC internal clock divider to the IPG clock rate.
*/
dev_dbg(&pdev->dev, "Found master clock at %lu Hz\n",
clk_get_rate(tsadc->clk));
clk_div = DIV_ROUND_UP(clk_get_rate(tsadc->clk), 1750000);
dev_dbg(&pdev->dev, "Setting up ADC clock divider to %u\n", clk_div);
/* adc clock = IPG clock / (2 * div + 2) */
clk_div -= 2;
clk_div /= 2;
/*
* the ADC clock divider changes its behaviour when values below 4
* are used: it is fixed to "/ 10" in this case
*/
clk_div = max_t(unsigned, 4, clk_div);
dev_dbg(&pdev->dev, "Resulting ADC conversion clock at %lu Hz\n",
clk_get_rate(tsadc->clk) / (2 * clk_div + 2));
regmap_update_bits(tsadc->regs, MX25_TSC_TGCR,
MX25_TGCR_ADCCLKCFG(0x1f),
MX25_TGCR_ADCCLKCFG(clk_div));
}
static int mx25_tsadc_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
struct mx25_tsadc *tsadc;
struct resource *res;
int ret;
void __iomem *iomem;
tsadc = devm_kzalloc(dev, sizeof(*tsadc), GFP_KERNEL);
if (!tsadc)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
iomem = devm_ioremap_resource(dev, res);
if (IS_ERR(iomem))
return PTR_ERR(iomem);
tsadc->regs = devm_regmap_init_mmio(dev, iomem,
&mx25_tsadc_regmap_config);
if (IS_ERR(tsadc->regs)) {
dev_err(dev, "Failed to initialize regmap\n");
return PTR_ERR(tsadc->regs);
}
tsadc->clk = devm_clk_get(dev, "ipg");
if (IS_ERR(tsadc->clk)) {
dev_err(dev, "Failed to get ipg clock\n");
return PTR_ERR(tsadc->clk);
}
/* setup clock according to the datasheet */
mx25_tsadc_setup_clk(pdev, tsadc);
/* Enable clock and reset the component */
regmap_update_bits(tsadc->regs, MX25_TSC_TGCR, MX25_TGCR_CLK_EN,
MX25_TGCR_CLK_EN);
regmap_update_bits(tsadc->regs, MX25_TSC_TGCR, MX25_TGCR_TSC_RST,
MX25_TGCR_TSC_RST);
/* Setup powersaving mode, but enable internal reference voltage */
regmap_update_bits(tsadc->regs, MX25_TSC_TGCR, MX25_TGCR_POWERMODE_MASK,
MX25_TGCR_POWERMODE_SAVE);
regmap_update_bits(tsadc->regs, MX25_TSC_TGCR, MX25_TGCR_INTREFEN,
MX25_TGCR_INTREFEN);
ret = mx25_tsadc_setup_irq(pdev, tsadc);
if (ret)
return ret;
platform_set_drvdata(pdev, tsadc);
of_platform_populate(np, NULL, NULL, dev);
return 0;
}
static const struct of_device_id mx25_tsadc_ids[] = {
{ .compatible = "fsl,imx25-tsadc" },
{ /* Sentinel */ }
};
static struct platform_driver mx25_tsadc_driver = {
.driver = {
.name = "mx25-tsadc",
.of_match_table = of_match_ptr(mx25_tsadc_ids),
},
.probe = mx25_tsadc_probe,
};
module_platform_driver(mx25_tsadc_driver);
MODULE_DESCRIPTION("MFD for ADC/TSC for Freescale mx25");
MODULE_AUTHOR("Markus Pargmann <[email protected]>");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:mx25-tsadc");

240
drivers/mfd/tps65912-core.c
View file

@ -1,175 +1,111 @@
/*
* tps65912-core.c -- TI TPS65912x
* Core functions for TI TPS65912x PMICs
*
* Copyright 2011 Texas Instruments Inc.
* Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
* Andrew F. Davis <afd@ti.com>
*
* Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk>
* 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 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; either version 2 of the License, or (at your
* option) any later version.
* 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.
*
* This driver is based on wm8350 implementation.
* Based on the TPS65218 driver and the previous TPS65912 driver by
* Margarita Olaya Cabrera <magi@slimlogic.co.uk>
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>
#include <linux/mfd/core.h>
#include <linux/module.h>
#include <linux/mfd/tps65912.h>
static const struct mfd_cell tps65912s[] = {
{
.name = "tps65912-pmic",
},
static const struct mfd_cell tps65912_cells[] = {
{ .name = "tps65912-regulator", },
{ .name = "tps65912-gpio", },
};
int tps65912_set_bits(struct tps65912 *tps65912, u8 reg, u8 mask)
static const struct regmap_irq tps65912_irqs[] = {
/* INT_STS IRQs */
REGMAP_IRQ_REG(TPS65912_IRQ_PWRHOLD_F, 0, TPS65912_INT_STS_PWRHOLD_F),
REGMAP_IRQ_REG(TPS65912_IRQ_VMON, 0, TPS65912_INT_STS_VMON),
REGMAP_IRQ_REG(TPS65912_IRQ_PWRON, 0, TPS65912_INT_STS_PWRON),
REGMAP_IRQ_REG(TPS65912_IRQ_PWRON_LP, 0, TPS65912_INT_STS_PWRON_LP),
REGMAP_IRQ_REG(TPS65912_IRQ_PWRHOLD_R, 0, TPS65912_INT_STS_PWRHOLD_R),
REGMAP_IRQ_REG(TPS65912_IRQ_HOTDIE, 0, TPS65912_INT_STS_HOTDIE),
REGMAP_IRQ_REG(TPS65912_IRQ_GPIO1_R, 0, TPS65912_INT_STS_GPIO1_R),
REGMAP_IRQ_REG(TPS65912_IRQ_GPIO1_F, 0, TPS65912_INT_STS_GPIO1_F),
/* INT_STS2 IRQs */
REGMAP_IRQ_REG(TPS65912_IRQ_GPIO2_R, 1, TPS65912_INT_STS2_GPIO2_R),
REGMAP_IRQ_REG(TPS65912_IRQ_GPIO2_F, 1, TPS65912_INT_STS2_GPIO2_F),
REGMAP_IRQ_REG(TPS65912_IRQ_GPIO3_R, 1, TPS65912_INT_STS2_GPIO3_R),
REGMAP_IRQ_REG(TPS65912_IRQ_GPIO3_F, 1, TPS65912_INT_STS2_GPIO3_F),
REGMAP_IRQ_REG(TPS65912_IRQ_GPIO4_R, 1, TPS65912_INT_STS2_GPIO4_R),
REGMAP_IRQ_REG(TPS65912_IRQ_GPIO4_F, 1, TPS65912_INT_STS2_GPIO4_F),
REGMAP_IRQ_REG(TPS65912_IRQ_GPIO5_R, 1, TPS65912_INT_STS2_GPIO5_R),
REGMAP_IRQ_REG(TPS65912_IRQ_GPIO5_F, 1, TPS65912_INT_STS2_GPIO5_F),
/* INT_STS3 IRQs */
REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC1, 2, TPS65912_INT_STS3_PGOOD_DCDC1),
REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC2, 2, TPS65912_INT_STS3_PGOOD_DCDC2),
REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC3, 2, TPS65912_INT_STS3_PGOOD_DCDC3),
REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_DCDC4, 2, TPS65912_INT_STS3_PGOOD_DCDC4),
REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO1, 2, TPS65912_INT_STS3_PGOOD_LDO1),
REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO2, 2, TPS65912_INT_STS3_PGOOD_LDO2),
REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO3, 2, TPS65912_INT_STS3_PGOOD_LDO3),
REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO4, 2, TPS65912_INT_STS3_PGOOD_LDO4),
/* INT_STS4 IRQs */
REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO5, 3, TPS65912_INT_STS4_PGOOD_LDO5),
REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO6, 3, TPS65912_INT_STS4_PGOOD_LDO6),
REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO7, 3, TPS65912_INT_STS4_PGOOD_LDO7),
REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO8, 3, TPS65912_INT_STS4_PGOOD_LDO8),
REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO9, 3, TPS65912_INT_STS4_PGOOD_LDO9),
REGMAP_IRQ_REG(TPS65912_IRQ_PGOOD_LDO10, 3, TPS65912_INT_STS4_PGOOD_LDO10),
};
static struct regmap_irq_chip tps65912_irq_chip = {
.name = "tps65912",
.irqs = tps65912_irqs,
.num_irqs = ARRAY_SIZE(tps65912_irqs),
.num_regs = 4,
.irq_reg_stride = 2,
.mask_base = TPS65912_INT_MSK,
.status_base = TPS65912_INT_STS,
.ack_base = TPS65912_INT_STS,
.init_ack_masked = true,
};
int tps65912_device_init(struct tps65912 *tps)
{
u8 data;
int err;
int ret;
mutex_lock(&tps65912->io_mutex);
ret = regmap_add_irq_chip(tps->regmap, tps->irq, IRQF_ONESHOT, 0,
&tps65912_irq_chip, &tps->irq_data);
if (ret)
return ret;
err = tps65912->read(tps65912, reg, 1, &data);
if (err) {
dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
goto out;
ret = mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO, tps65912_cells,
ARRAY_SIZE(tps65912_cells), NULL, 0,
regmap_irq_get_domain(tps->irq_data));
if (ret) {
regmap_del_irq_chip(tps->irq, tps->irq_data);
return ret;
}
data |= mask;
err = tps65912->write(tps65912, reg, 1, &data);
if (err)
dev_err(tps65912->dev, "Write to reg 0x%x failed\n", reg);
out:
mutex_unlock(&tps65912->io_mutex);
return err;
return 0;
}
EXPORT_SYMBOL_GPL(tps65912_set_bits);
EXPORT_SYMBOL_GPL(tps65912_device_init);
int tps65912_clear_bits(struct tps65912 *tps65912, u8 reg, u8 mask)
int tps65912_device_exit(struct tps65912 *tps)
{
u8 data;
int err;
regmap_del_irq_chip(tps->irq, tps->irq_data);
mutex_lock(&tps65912->io_mutex);
err = tps65912->read(tps65912, reg, 1, &data);
if (err) {
dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
goto out;
}
data &= ~mask;
err = tps65912->write(tps65912, reg, 1, &data);
if (err)
dev_err(tps65912->dev, "Write to reg 0x%x failed\n", reg);
out:
mutex_unlock(&tps65912->io_mutex);
return err;
return 0;
}
EXPORT_SYMBOL_GPL(tps65912_clear_bits);
EXPORT_SYMBOL_GPL(tps65912_device_exit);
static inline int tps65912_read(struct tps65912 *tps65912, u8 reg)
{
u8 val;
int err;
err = tps65912->read(tps65912, reg, 1, &val);
if (err < 0)
return err;
return val;
}
static inline int tps65912_write(struct tps65912 *tps65912, u8 reg, u8 val)
{
return tps65912->write(tps65912, reg, 1, &val);
}
int tps65912_reg_read(struct tps65912 *tps65912, u8 reg)
{
int data;
mutex_lock(&tps65912->io_mutex);
data = tps65912_read(tps65912, reg);
if (data < 0)
dev_err(tps65912->dev, "Read from reg 0x%x failed\n", reg);
mutex_unlock(&tps65912->io_mutex);
return data;
}
EXPORT_SYMBOL_GPL(tps65912_reg_read);
int tps65912_reg_write(struct tps65912 *tps65912, u8 reg, u8 val)
{
int err;
mutex_lock(&tps65912->io_mutex);
err = tps65912_write(tps65912, reg, val);
if (err < 0)
dev_err(tps65912->dev, "Write for reg 0x%x failed\n", reg);
mutex_unlock(&tps65912->io_mutex);
return err;
}
EXPORT_SYMBOL_GPL(tps65912_reg_write);
int tps65912_device_init(struct tps65912 *tps65912)
{
struct tps65912_board *pmic_plat_data = dev_get_platdata(tps65912->dev);
struct tps65912_platform_data *init_data;
int ret, dcdc_avs, value;
init_data = kzalloc(sizeof(struct tps65912_platform_data), GFP_KERNEL);
if (init_data == NULL)
return -ENOMEM;
mutex_init(&tps65912->io_mutex);
dev_set_drvdata(tps65912->dev, tps65912);
dcdc_avs = (pmic_plat_data->is_dcdc1_avs << 0 |
pmic_plat_data->is_dcdc2_avs << 1 |
pmic_plat_data->is_dcdc3_avs << 2 |
pmic_plat_data->is_dcdc4_avs << 3);
if (dcdc_avs) {
tps65912->read(tps65912, TPS65912_I2C_SPI_CFG, 1, &value);
dcdc_avs |= value;
tps65912->write(tps65912, TPS65912_I2C_SPI_CFG, 1, &dcdc_avs);
}
ret = mfd_add_devices(tps65912->dev, -1,
tps65912s, ARRAY_SIZE(tps65912s),
NULL, 0, NULL);
if (ret < 0)
goto err;
init_data->irq = pmic_plat_data->irq;
init_data->irq_base = pmic_plat_data->irq_base;
ret = tps65912_irq_init(tps65912, init_data->irq, init_data);
if (ret < 0)
goto err;
kfree(init_data);
return ret;
err:
kfree(init_data);
mfd_remove_devices(tps65912->dev);
return ret;
}
void tps65912_device_exit(struct tps65912 *tps65912)
{
mfd_remove_devices(tps65912->dev);
tps65912_irq_exit(tps65912);
}
MODULE_AUTHOR("Margarita Olaya <[email protected]>");
MODULE_DESCRIPTION("TPS65912x chip family multi-function driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Andrew F. Davis <[email protected]>");
MODULE_DESCRIPTION("TPS65912x MFD Driver");
MODULE_LICENSE("GPL v2");

164
drivers/mfd/tps65912-i2c.c
View file

@ -1,139 +1,79 @@
/*
* tps65912-i2c.c -- I2C access for TI TPS65912x PMIC
* I2C access driver for TI TPS65912x PMICs
*
* Copyright 2011 Texas Instruments Inc.
* Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
* Andrew F. Davis <afd@ti.com>
*
* Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk>
* 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 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; either version 2 of the License, or (at your
* option) any later version.
* 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.
*
* This driver is based on wm8350 implementation.
* Based on the TPS65218 driver and the previous TPS65912 driver by
* Margarita Olaya Cabrera <magi@slimlogic.co.uk>
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/mfd/core.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/mfd/tps65912.h>
static int tps65912_i2c_read(struct tps65912 *tps65912, u8 reg,
int bytes, void *dest)
static const struct of_device_id tps65912_i2c_of_match_table[] = {
{ .compatible = "ti,tps65912", },
{ /* sentinel */ }
};
static int tps65912_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *ids)
{
struct i2c_client *i2c = tps65912->control_data;
struct i2c_msg xfer[2];
int ret;
struct tps65912 *tps;
/* Write register */
xfer[0].addr = i2c->addr;
xfer[0].flags = 0;
xfer[0].len = 1;
xfer[0].buf = &reg;
/* Read data */
xfer[1].addr = i2c->addr;
xfer[1].flags = I2C_M_RD;
xfer[1].len = bytes;
xfer[1].buf = dest;
ret = i2c_transfer(i2c->adapter, xfer, 2);
if (ret == 2)
ret = 0;
else if (ret >= 0)
ret = -EIO;
return ret;
}
static int tps65912_i2c_write(struct tps65912 *tps65912, u8 reg,
int bytes, void *src)
{
struct i2c_client *i2c = tps65912->control_data;
/* we add 1 byte for device register */
u8 msg[TPS6591X_MAX_REGISTER + 1];
int ret;
if (bytes > TPS6591X_MAX_REGISTER)
return -EINVAL;
msg[0] = reg;
memcpy(&msg[1], src, bytes);
ret = i2c_master_send(i2c, msg, bytes + 1);
if (ret < 0)
return ret;
if (ret != bytes + 1)
return -EIO;
return 0;
}
static int tps65912_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct tps65912 *tps65912;
tps65912 = devm_kzalloc(&i2c->dev,
sizeof(struct tps65912), GFP_KERNEL);
if (tps65912 == NULL)
tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
if (!tps)
return -ENOMEM;
i2c_set_clientdata(i2c, tps65912);
tps65912->dev = &i2c->dev;
tps65912->control_data = i2c;
tps65912->read = tps65912_i2c_read;
tps65912->write = tps65912_i2c_write;
i2c_set_clientdata(client, tps);
tps->dev = &client->dev;
tps->irq = client->irq;
return tps65912_device_init(tps65912);
tps->regmap = devm_regmap_init_i2c(client, &tps65912_regmap_config);
if (IS_ERR(tps->regmap)) {
dev_err(tps->dev, "Failed to initialize register map\n");
return PTR_ERR(tps->regmap);
}
return tps65912_device_init(tps);
}
static int tps65912_i2c_remove(struct i2c_client *i2c)
static int tps65912_i2c_remove(struct i2c_client *client)
{
struct tps65912 *tps65912 = i2c_get_clientdata(i2c);
struct tps65912 *tps = i2c_get_clientdata(client);
tps65912_device_exit(tps65912);
return 0;
return tps65912_device_exit(tps);
}
static const struct i2c_device_id tps65912_i2c_id[] = {
{"tps65912", 0 },
{ }
static const struct i2c_device_id tps65912_i2c_id_table[] = {
{ "tps65912", 0 },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(i2c, tps65912_i2c_id);
MODULE_DEVICE_TABLE(i2c, tps65912_i2c_id_table);
static struct i2c_driver tps65912_i2c_driver = {
.driver = {
.name = "tps65912",
.driver = {
.name = "tps65912",
.of_match_table = tps65912_i2c_of_match_table,
},
.probe = tps65912_i2c_probe,
.remove = tps65912_i2c_remove,
.id_table = tps65912_i2c_id,
.probe = tps65912_i2c_probe,
.remove = tps65912_i2c_remove,
.id_table = tps65912_i2c_id_table,
};
module_i2c_driver(tps65912_i2c_driver);
static int __init tps65912_i2c_init(void)
{
int ret;
ret = i2c_add_driver(&tps65912_i2c_driver);
if (ret != 0)
pr_err("Failed to register TPS65912 I2C driver: %d\n", ret);
return ret;
}
/* init early so consumer devices can complete system boot */
subsys_initcall(tps65912_i2c_init);
static void __exit tps65912_i2c_exit(void)
{
i2c_del_driver(&tps65912_i2c_driver);
}
module_exit(tps65912_i2c_exit);
MODULE_AUTHOR("Margarita Olaya <[email protected]>");
MODULE_DESCRIPTION("TPS6591x chip family multi-function driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Andrew F. Davis <[email protected]>");
MODULE_DESCRIPTION("TPS65912x I2C Interface Driver");
MODULE_LICENSE("GPL v2");

217
drivers/mfd/tps65912-irq.c
View file

@ -1,217 +0,0 @@
/*
* tps65912-irq.c -- TI TPS6591x
*
* Copyright 2011 Texas Instruments Inc.
*
* Author: Margarita Olaya <magi@slimlogic.co.uk>
*
* 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; either version 2 of the License, or (at your
* option) any later version.
*
* This driver is based on wm8350 implementation.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/bug.h>
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/gpio.h>
#include <linux/mfd/tps65912.h>
static inline int irq_to_tps65912_irq(struct tps65912 *tps65912,
int irq)
{
return irq - tps65912->irq_base;
}
/*
* This is a threaded IRQ handler so can access I2C/SPI. Since the
* IRQ handler explicitly clears the IRQ it handles the IRQ line
* will be reasserted and the physical IRQ will be handled again if
* another interrupt is asserted while we run - in the normal course
* of events this is a rare occurrence so we save I2C/SPI reads. We're
* also assuming that it's rare to get lots of interrupts firing
* simultaneously so try to minimise I/O.
*/
static irqreturn_t tps65912_irq(int irq, void *irq_data)
{
struct tps65912 *tps65912 = irq_data;
u32 irq_sts;
u32 irq_mask;
u8 reg;
int i;
tps65912->read(tps65912, TPS65912_INT_STS, 1, &reg);
irq_sts = reg;
tps65912->read(tps65912, TPS65912_INT_STS2, 1, &reg);
irq_sts |= reg << 8;
tps65912->read(tps65912, TPS65912_INT_STS3, 1, &reg);
irq_sts |= reg << 16;
tps65912->read(tps65912, TPS65912_INT_STS4, 1, &reg);
irq_sts |= reg << 24;
tps65912->read(tps65912, TPS65912_INT_MSK, 1, &reg);
irq_mask = reg;
tps65912->read(tps65912, TPS65912_INT_MSK2, 1, &reg);
irq_mask |= reg << 8;
tps65912->read(tps65912, TPS65912_INT_MSK3, 1, &reg);
irq_mask |= reg << 16;
tps65912->read(tps65912, TPS65912_INT_MSK4, 1, &reg);
irq_mask |= reg << 24;
irq_sts &= ~irq_mask;
if (!irq_sts)
return IRQ_NONE;
for (i = 0; i < tps65912->irq_num; i++) {
if (!(irq_sts & (1 << i)))
continue;
handle_nested_irq(tps65912->irq_base + i);
}
/* Write the STS register back to clear IRQs we handled */
reg = irq_sts & 0xFF;
irq_sts >>= 8;
if (reg)
tps65912->write(tps65912, TPS65912_INT_STS, 1, &reg);
reg = irq_sts & 0xFF;
irq_sts >>= 8;
if (reg)
tps65912->write(tps65912, TPS65912_INT_STS2, 1, &reg);
reg = irq_sts & 0xFF;
irq_sts >>= 8;
if (reg)
tps65912->write(tps65912, TPS65912_INT_STS3, 1, &reg);
reg = irq_sts & 0xFF;
if (reg)
tps65912->write(tps65912, TPS65912_INT_STS4, 1, &reg);
return IRQ_HANDLED;
}
static void tps65912_irq_lock(struct irq_data *data)
{
struct tps65912 *tps65912 = irq_data_get_irq_chip_data(data);
mutex_lock(&tps65912->irq_lock);
}
static void tps65912_irq_sync_unlock(struct irq_data *data)
{
struct tps65912 *tps65912 = irq_data_get_irq_chip_data(data);
u32 reg_mask;
u8 reg;
tps65912->read(tps65912, TPS65912_INT_MSK, 1, &reg);
reg_mask = reg;
tps65912->read(tps65912, TPS65912_INT_MSK2, 1, &reg);
reg_mask |= reg << 8;
tps65912->read(tps65912, TPS65912_INT_MSK3, 1, &reg);
reg_mask |= reg << 16;
tps65912->read(tps65912, TPS65912_INT_MSK4, 1, &reg);
reg_mask |= reg << 24;
if (tps65912->irq_mask != reg_mask) {
reg = tps65912->irq_mask & 0xFF;
tps65912->write(tps65912, TPS65912_INT_MSK, 1, &reg);
reg = tps65912->irq_mask >> 8 & 0xFF;
tps65912->write(tps65912, TPS65912_INT_MSK2, 1, &reg);
reg = tps65912->irq_mask >> 16 & 0xFF;
tps65912->write(tps65912, TPS65912_INT_MSK3, 1, &reg);
reg = tps65912->irq_mask >> 24 & 0xFF;
tps65912->write(tps65912, TPS65912_INT_MSK4, 1, &reg);
}
mutex_unlock(&tps65912->irq_lock);
}
static void tps65912_irq_enable(struct irq_data *data)
{
struct tps65912 *tps65912 = irq_data_get_irq_chip_data(data);
tps65912->irq_mask &= ~(1 << irq_to_tps65912_irq(tps65912, data->irq));
}
static void tps65912_irq_disable(struct irq_data *data)
{
struct tps65912 *tps65912 = irq_data_get_irq_chip_data(data);
tps65912->irq_mask |= (1 << irq_to_tps65912_irq(tps65912, data->irq));
}
static struct irq_chip tps65912_irq_chip = {
.name = "tps65912",
.irq_bus_lock = tps65912_irq_lock,
.irq_bus_sync_unlock = tps65912_irq_sync_unlock,
.irq_disable = tps65912_irq_disable,
.irq_enable = tps65912_irq_enable,
};
int tps65912_irq_init(struct tps65912 *tps65912, int irq,
struct tps65912_platform_data *pdata)
{
int ret, cur_irq;
int flags = IRQF_ONESHOT;
u8 reg;
if (!irq) {
dev_warn(tps65912->dev, "No interrupt support, no core IRQ\n");
return 0;
}
if (!pdata || !pdata->irq_base) {
dev_warn(tps65912->dev, "No interrupt support, no IRQ base\n");
return 0;
}
/* Clear unattended interrupts */
tps65912->read(tps65912, TPS65912_INT_STS, 1, &reg);
tps65912->write(tps65912, TPS65912_INT_STS, 1, &reg);
tps65912->read(tps65912, TPS65912_INT_STS2, 1, &reg);
tps65912->write(tps65912, TPS65912_INT_STS2, 1, &reg);
tps65912->read(tps65912, TPS65912_INT_STS3, 1, &reg);
tps65912->write(tps65912, TPS65912_INT_STS3, 1, &reg);
tps65912->read(tps65912, TPS65912_INT_STS4, 1, &reg);
tps65912->write(tps65912, TPS65912_INT_STS4, 1, &reg);
/* Mask top level interrupts */
tps65912->irq_mask = 0xFFFFFFFF;
mutex_init(&tps65912->irq_lock);
tps65912->chip_irq = irq;
tps65912->irq_base = pdata->irq_base;
tps65912->irq_num = TPS65912_NUM_IRQ;
/* Register with genirq */
for (cur_irq = tps65912->irq_base;
cur_irq < tps65912->irq_num + tps65912->irq_base;
cur_irq++) {
irq_set_chip_data(cur_irq, tps65912);
irq_set_chip_and_handler(cur_irq, &tps65912_irq_chip,
handle_edge_irq);
irq_set_nested_thread(cur_irq, 1);
irq_clear_status_flags(cur_irq, IRQ_NOREQUEST | IRQ_NOPROBE);
}
ret = request_threaded_irq(irq, NULL, tps65912_irq, flags,
"tps65912", tps65912);
irq_set_irq_type(irq, IRQ_TYPE_LEVEL_LOW);
if (ret != 0)
dev_err(tps65912->dev, "Failed to request IRQ: %d\n", ret);
return ret;
}
int tps65912_irq_exit(struct tps65912 *tps65912)
{
free_irq(tps65912->chip_irq, tps65912);
return 0;
}

160
drivers/mfd/tps65912-spi.c
View file

@ -1,140 +1,78 @@
/*
* tps65912-spi.c -- SPI access for TI TPS65912x PMIC
* SPI access driver for TI TPS65912x PMICs
*
* Copyright 2011 Texas Instruments Inc.
* Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
* Andrew F. Davis <afd@ti.com>
*
* Author: Margarita Olaya Cabrera <magi@slimlogic.co.uk>
* 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 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; either version 2 of the License, or (at your
* option) any later version.
* 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.
*
* This driver is based on wm8350 implementation.
* Based on the TPS65218 driver and the previous TPS65912 driver by
* Margarita Olaya Cabrera <magi@slimlogic.co.uk>
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/gpio.h>
#include <linux/regmap.h>
#include <linux/spi/spi.h>
#include <linux/mfd/core.h>
#include <linux/mfd/tps65912.h>
static int tps65912_spi_write(struct tps65912 *tps65912, u8 addr,
int bytes, void *src)
{
struct spi_device *spi = tps65912->control_data;
u8 *data = (u8 *) src;
int ret;
/* bit 23 is the read/write bit */
unsigned long spi_data = 1 << 23 | addr << 15 | *data;
struct spi_transfer xfer;
struct spi_message msg;
u32 tx_buf;
tx_buf = spi_data;
xfer.tx_buf = &tx_buf;
xfer.rx_buf = NULL;
xfer.len = sizeof(unsigned long);
xfer.bits_per_word = 24;
spi_message_init(&msg);
spi_message_add_tail(&xfer, &msg);
ret = spi_sync(spi, &msg);
return ret;
}
static int tps65912_spi_read(struct tps65912 *tps65912, u8 addr,
int bytes, void *dest)
{
struct spi_device *spi = tps65912->control_data;
/* bit 23 is the read/write bit */
unsigned long spi_data = 0 << 23 | addr << 15;
struct spi_transfer xfer;
struct spi_message msg;
int ret;
u8 *data = (u8 *) dest;
u32 tx_buf, rx_buf;
tx_buf = spi_data;
rx_buf = 0;
xfer.tx_buf = &tx_buf;
xfer.rx_buf = &rx_buf;
xfer.len = sizeof(unsigned long);
xfer.bits_per_word = 24;
spi_message_init(&msg);
spi_message_add_tail(&xfer, &msg);
if (spi == NULL)
return 0;
ret = spi_sync(spi, &msg);
if (ret == 0)
*data = (u8) (rx_buf & 0xFF);
return ret;
}
static const struct of_device_id tps65912_spi_of_match_table[] = {
{ .compatible = "ti,tps65912", },
{ /* sentinel */ }
};
static int tps65912_spi_probe(struct spi_device *spi)
{
struct tps65912 *tps65912;
struct tps65912 *tps;
tps65912 = devm_kzalloc(&spi->dev,
sizeof(struct tps65912), GFP_KERNEL);
if (tps65912 == NULL)
tps = devm_kzalloc(&spi->dev, sizeof(*tps), GFP_KERNEL);
if (!tps)
return -ENOMEM;
tps65912->dev = &spi->dev;
tps65912->control_data = spi;
tps65912->read = tps65912_spi_read;
tps65912->write = tps65912_spi_write;
spi_set_drvdata(spi, tps);
tps->dev = &spi->dev;
tps->irq = spi->irq;
spi_set_drvdata(spi, tps65912);
tps->regmap = devm_regmap_init_spi(spi, &tps65912_regmap_config);
if (IS_ERR(tps->regmap)) {
dev_err(tps->dev, "Failed to initialize register map\n");
return PTR_ERR(tps->regmap);
}
return tps65912_device_init(tps65912);
return tps65912_device_init(tps);
}
static int tps65912_spi_remove(struct spi_device *spi)
static int tps65912_spi_remove(struct spi_device *client)
{
struct tps65912 *tps65912 = spi_get_drvdata(spi);
struct tps65912 *tps = spi_get_drvdata(client);
tps65912_device_exit(tps65912);
return 0;
return tps65912_device_exit(tps);
}
static const struct spi_device_id tps65912_spi_id_table[] = {
{ "tps65912", 0 },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(spi, tps65912_spi_id_table);
static struct spi_driver tps65912_spi_driver = {
.driver = {
.name = "tps65912",
.driver = {
.name = "tps65912",
.of_match_table = tps65912_spi_of_match_table,
},
.probe = tps65912_spi_probe,
.remove = tps65912_spi_remove,
.probe = tps65912_spi_probe,
.remove = tps65912_spi_remove,
.id_table = tps65912_spi_id_table,
};
module_spi_driver(tps65912_spi_driver);
static int __init tps65912_spi_init(void)
{
int ret;
ret = spi_register_driver(&tps65912_spi_driver);
if (ret != 0)
pr_err("Failed to register TPS65912 SPI driver: %d\n", ret);
return 0;
}
/* init early so consumer devices can complete system boot */
subsys_initcall(tps65912_spi_init);
static void __exit tps65912_spi_exit(void)
{
spi_unregister_driver(&tps65912_spi_driver);
}
module_exit(tps65912_spi_exit);
MODULE_AUTHOR("Margarita Olaya <[email protected]>");
MODULE_DESCRIPTION("SPI support for TPS65912 chip family mfd");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Andrew F. Davis <[email protected]>");
MODULE_DESCRIPTION("TPS65912x SPI Interface Driver");
MODULE_LICENSE("GPL v2");