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mfd: tps68470: Remove tps68470 MFD driver

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This driver only covered one scenario in which ACPI devices with _HID
INT3472 are found, and its functionality has been taken over by the
intel-skl-int3472 module, so remove it.

Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Link: https://lore.kernel.org/r/20210603224007.120560-7-djrscally@gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Daniel Scally 2021-06-03 23:40:07 +01:00 committed by Hans de Goede
parent 5de691bffe
commit 24700e1f41
5 changed files with 2 additions and 118 deletions
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2
drivers/acpi/pmic/Kconfig
View File

@ -52,7 +52,7 @@ endif # PMIC_OPREGION
config TPS68470_PMIC_OPREGION
bool "ACPI operation region support for TPS68470 PMIC"
depends on MFD_TPS68470
depends on INTEL_SKL_INT3472
help
This config adds ACPI operation region support for TI TPS68470 PMIC.
TPS68470 device is an advanced power management unit that powers

2
drivers/gpio/Kconfig
View File

@ -1367,7 +1367,7 @@ config GPIO_TPS65912
config GPIO_TPS68470
bool "TPS68470 GPIO"
depends on MFD_TPS68470
depends on INTEL_SKL_INT3472
help
Select this option to enable GPIO driver for the TPS68470
chip family.

18
drivers/mfd/Kconfig
View File

@ -1499,24 +1499,6 @@ config MFD_TPS65217
This driver can also be built as a module. If so, the module
will be called tps65217.
config MFD_TPS68470
bool "TI TPS68470 Power Management / LED chips"
depends on ACPI && PCI && I2C=y
depends on I2C_DESIGNWARE_PLATFORM=y
select MFD_CORE
select REGMAP_I2C
help
If you say yes here you get support for the TPS68470 series of
Power Management / LED chips.
These include voltage regulators, LEDs and other features
that are often used in portable devices.
This option is a bool as it provides an ACPI operation
region, which must be available before any of the devices
using this are probed. This option also configures the
designware-i2c driver to be built-in, for the same reason.
config MFD_TI_LP873X
tristate "TI LP873X Power Management IC"
depends on I2C

1
drivers/mfd/Makefile
View File

@ -105,7 +105,6 @@ obj-$(CONFIG_MFD_TPS65910) += tps65910.o
obj-$(CONFIG_MFD_TPS65912) += tps65912-core.o
obj-$(CONFIG_MFD_TPS65912_I2C) += tps65912-i2c.o
obj-$(CONFIG_MFD_TPS65912_SPI) += tps65912-spi.o
obj-$(CONFIG_MFD_TPS68470) += tps68470.o
obj-$(CONFIG_MFD_TPS80031) += tps80031.o
obj-$(CONFIG_MENELAUS) += menelaus.o

97
drivers/mfd/tps68470.c
View File

@ -1,97 +0,0 @@
// SPDX-License-Identifier: GPL-2.0
/*
* TPS68470 chip Parent driver
*
* Copyright (C) 2017 Intel Corporation
*
* Authors:
* Rajmohan Mani <rajmohan.mani@intel.com>
* Tianshu Qiu <tian.shu.qiu@intel.com>
* Jian Xu Zheng <jian.xu.zheng@intel.com>
* Yuning Pu <yuning.pu@intel.com>
*/
#include <linux/acpi.h>
#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/init.h>
#include <linux/mfd/core.h>
#include <linux/mfd/tps68470.h>
#include <linux/regmap.h>
static const struct mfd_cell tps68470s[] = {
{ .name = "tps68470-gpio" },
{ .name = "tps68470_pmic_opregion" },
};
static const struct regmap_config tps68470_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = TPS68470_REG_MAX,
};
static int tps68470_chip_init(struct device *dev, struct regmap *regmap)
{
unsigned int version;
int ret;
/* Force software reset */
ret = regmap_write(regmap, TPS68470_REG_RESET, TPS68470_REG_RESET_MASK);
if (ret)
return ret;
ret = regmap_read(regmap, TPS68470_REG_REVID, &version);
if (ret) {
dev_err(dev, "Failed to read revision register: %d\n", ret);
return ret;
}
dev_info(dev, "TPS68470 REVID: 0x%x\n", version);
return 0;
}
static int tps68470_probe(struct i2c_client *client)
{
struct device *dev = &client->dev;
struct regmap *regmap;
int ret;
regmap = devm_regmap_init_i2c(client, &tps68470_regmap_config);
if (IS_ERR(regmap)) {
dev_err(dev, "devm_regmap_init_i2c Error %ld\n",
PTR_ERR(regmap));
return PTR_ERR(regmap);
}
i2c_set_clientdata(client, regmap);
ret = tps68470_chip_init(dev, regmap);
if (ret < 0) {
dev_err(dev, "TPS68470 Init Error %d\n", ret);
return ret;
}
ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_NONE, tps68470s,
ARRAY_SIZE(tps68470s), NULL, 0, NULL);
if (ret < 0) {
dev_err(dev, "devm_mfd_add_devices failed: %d\n", ret);
return ret;
}
return 0;
}
static const struct acpi_device_id tps68470_acpi_ids[] = {
{"INT3472"},
{},
};
static struct i2c_driver tps68470_driver = {
.driver = {
.name = "tps68470",
.acpi_match_table = tps68470_acpi_ids,
},
.probe_new = tps68470_probe,
};
builtin_i2c_driver(tps68470_driver);