Re: [PATCH v3 6/6] mfd: tps68470: Remove tps68470 MFD driver

From: Andy Shevchenko
Date: Mon Feb 22 2021 - 09:24:16 EST

On Mon, Feb 22, 2021 at 3:12 PM Daniel Scally <djrscally@xxxxxxxxx> wrote:
>
> 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.

As long as patch 5 accepted
Acked-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>

> Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Signed-off-by: Daniel Scally <djrscally@xxxxxxxxx>
> ---
> Changes in v3:
> - Replaced Kconfig dependencies with INTEL_SKL_INT3472 for the tps68470
> OpRegion and GPIO drivers.
>
> drivers/acpi/pmic/Kconfig | 2 +-
> drivers/gpio/Kconfig | 2 +-
> drivers/mfd/Kconfig | 18 --------
> drivers/mfd/Makefile | 1 -
> drivers/mfd/tps68470.c | 97 ---------------------------------------
> 5 files changed, 2 insertions(+), 118 deletions(-)
> delete mode 100644 drivers/mfd/tps68470.c
>
> diff --git a/drivers/acpi/pmic/Kconfig b/drivers/acpi/pmic/Kconfig
> index 56bbcb2ce61b..f84b8f6038dc 100644
> --- a/drivers/acpi/pmic/Kconfig
> +++ b/drivers/acpi/pmic/Kconfig
> @@ -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
> diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
> index c70f46e80a3b..998898c72af8 100644
> --- a/drivers/gpio/Kconfig
> +++ b/drivers/gpio/Kconfig
> @@ -1343,7 +1343,7 @@ 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.
> diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
> index bdfce7b15621..9a1f648efde0 100644
> --- a/drivers/mfd/Kconfig
> +++ b/drivers/mfd/Kconfig
> @@ -1520,24 +1520,6 @@ 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
> diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
> index 14fdb188af02..5994e812f479 100644
> --- a/drivers/mfd/Makefile
> +++ b/drivers/mfd/Makefile
> @@ -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
>
> diff --git a/drivers/mfd/tps68470.c b/drivers/mfd/tps68470.c
> deleted file mode 100644
> index 4a4df4ffd18c..000000000000
> --- a/drivers/mfd/tps68470.c
> +++ /dev/null
> @@ -1,97 +0,0 @@
> -// SPDX-License-Identifier: GPL-2.0
> -/*
> - * TPS68470 chip Parent driver
> - *
> - * Copyright (C) 2017 Intel Corporation
> - *
> - * Authors:
> - * Rajmohan Mani <rajmohan.mani@xxxxxxxxx>
> - * Tianshu Qiu <tian.shu.qiu@xxxxxxxxx>
> - * Jian Xu Zheng <jian.xu.zheng@xxxxxxxxx>
> - * Yuning Pu <yuning.pu@xxxxxxxxx>
> - */
> -
> -#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);
> --
> 2.25.1
>


--
With Best Regards,
Andy Shevchenko