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Message-Id: <20210817080118.9201-1-lukas.bulwahn@gmail.com>
Date: Tue, 17 Aug 2021 10:01:18 +0200
From: Lukas Bulwahn <lukas.bulwahn@...il.com>
To: Fabio Estevam <festevam@...il.com>,
Shawn Guo <shawnguo@...nel.org>,
Linus Walleij <linus.walleij@...aro.org>,
Bartosz Golaszewski <bgolaszewski@...libre.com>,
linux-gpio@...r.kernel.org
Cc: kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org,
Lukas Bulwahn <lukas.bulwahn@...il.com>
Subject: [PATCH] gpio: remove the obsolete MX35 3DS BOARD MC9S08DZ60 GPIO functions
Commit e1324ece2af4 ("ARM: imx: Remove i.MX35 board files") removes the
config MACH_MX35_3DS in arch/arm/mach-imx/Kconfig.
Hence, since then, the MX35 3DS BOARD MC9S08DZ60 GPIO functions are dead
code as its config GPIO_MC9S08DZ60 depends on the config MACH_MX35_3DS.
Luckily, ./scripts/checkkconfigsymbols.py warns on non-existing configs:
MACH_MX35_3DS
Referencing files: drivers/gpio/Kconfig
Remove the obsolete MX35 3DS BOARD MC9S08DZ60 GPIO functions.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@...il.com>
---
drivers/gpio/Kconfig | 6 --
drivers/gpio/Makefile | 1 -
drivers/gpio/gpio-mc9s08dz60.c | 112 ---------------------------------
3 files changed, 119 deletions(-)
delete mode 100644 drivers/gpio/gpio-mc9s08dz60.c
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index fab571016adf..9a494cab5dbf 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -1010,12 +1010,6 @@ config GPIO_MAX732X_IRQ
Say yes here to enable the max732x to be used as an interrupt
controller. It requires the driver to be built in the kernel.
-config GPIO_MC9S08DZ60
- bool "MX35 3DS BOARD MC9S08DZ60 GPIO functions"
- depends on I2C=y && MACH_MX35_3DS
- help
- Select this to enable the MC9S08DZ60 GPIO driver
-
config GPIO_PCA953X
tristate "PCA95[357]x, PCA9698, TCA64xx, and MAX7310 I/O ports"
select REGMAP_I2C
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 32a32659866a..7856222ae855 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -92,7 +92,6 @@ obj-$(CONFIG_GPIO_MAX77620) += gpio-max77620.o
obj-$(CONFIG_GPIO_MAX77650) += gpio-max77650.o
obj-$(CONFIG_GPIO_MB86S7X) += gpio-mb86s7x.o
obj-$(CONFIG_GPIO_MC33880) += gpio-mc33880.o
-obj-$(CONFIG_GPIO_MC9S08DZ60) += gpio-mc9s08dz60.o
obj-$(CONFIG_GPIO_MENZ127) += gpio-menz127.o
obj-$(CONFIG_GPIO_MERRIFIELD) += gpio-merrifield.o
obj-$(CONFIG_GPIO_ML_IOH) += gpio-ml-ioh.o
diff --git a/drivers/gpio/gpio-mc9s08dz60.c b/drivers/gpio/gpio-mc9s08dz60.c
deleted file mode 100644
index a9f17cebd5ed..000000000000
--- a/drivers/gpio/gpio-mc9s08dz60.c
+++ /dev/null
@@ -1,112 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Copyright 2009-2012 Freescale Semiconductor, Inc. All Rights Reserved.
- *
- * Author: Wu Guoxing <b39297@...escale.com>
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/gpio/driver.h>
-
-#define GPIO_GROUP_NUM 2
-#define GPIO_NUM_PER_GROUP 8
-#define GPIO_NUM (GPIO_GROUP_NUM*GPIO_NUM_PER_GROUP)
-
-struct mc9s08dz60 {
- struct i2c_client *client;
- struct gpio_chip chip;
-};
-
-static void mc9s_gpio_to_reg_and_bit(int offset, u8 *reg, u8 *bit)
-{
- *reg = 0x20 + offset / GPIO_NUM_PER_GROUP;
- *bit = offset % GPIO_NUM_PER_GROUP;
-}
-
-static int mc9s08dz60_get_value(struct gpio_chip *gc, unsigned offset)
-{
- u8 reg, bit;
- s32 value;
- struct mc9s08dz60 *mc9s = gpiochip_get_data(gc);
-
- mc9s_gpio_to_reg_and_bit(offset, ®, &bit);
- value = i2c_smbus_read_byte_data(mc9s->client, reg);
-
- return (value >= 0) ? (value >> bit) & 0x1 : 0;
-}
-
-static int mc9s08dz60_set(struct mc9s08dz60 *mc9s, unsigned offset, int val)
-{
- u8 reg, bit;
- s32 value;
-
- mc9s_gpio_to_reg_and_bit(offset, ®, &bit);
- value = i2c_smbus_read_byte_data(mc9s->client, reg);
- if (value >= 0) {
- if (val)
- value |= 1 << bit;
- else
- value &= ~(1 << bit);
-
- return i2c_smbus_write_byte_data(mc9s->client, reg, value);
- } else
- return value;
-
-}
-
-
-static void mc9s08dz60_set_value(struct gpio_chip *gc, unsigned offset, int val)
-{
- struct mc9s08dz60 *mc9s = gpiochip_get_data(gc);
-
- mc9s08dz60_set(mc9s, offset, val);
-}
-
-static int mc9s08dz60_direction_output(struct gpio_chip *gc,
- unsigned offset, int val)
-{
- struct mc9s08dz60 *mc9s = gpiochip_get_data(gc);
-
- return mc9s08dz60_set(mc9s, offset, val);
-}
-
-static int mc9s08dz60_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct mc9s08dz60 *mc9s;
-
- mc9s = devm_kzalloc(&client->dev, sizeof(*mc9s), GFP_KERNEL);
- if (!mc9s)
- return -ENOMEM;
-
- mc9s->chip.label = client->name;
- mc9s->chip.base = -1;
- mc9s->chip.parent = &client->dev;
- mc9s->chip.owner = THIS_MODULE;
- mc9s->chip.ngpio = GPIO_NUM;
- mc9s->chip.can_sleep = true;
- mc9s->chip.get = mc9s08dz60_get_value;
- mc9s->chip.set = mc9s08dz60_set_value;
- mc9s->chip.direction_output = mc9s08dz60_direction_output;
- mc9s->client = client;
- i2c_set_clientdata(client, mc9s);
-
- return devm_gpiochip_add_data(&client->dev, &mc9s->chip, mc9s);
-}
-
-static const struct i2c_device_id mc9s08dz60_id[] = {
- {"mc9s08dz60", 0},
- {},
-};
-
-static struct i2c_driver mc9s08dz60_i2c_driver = {
- .driver = {
- .name = "mc9s08dz60",
- },
- .probe = mc9s08dz60_probe,
- .id_table = mc9s08dz60_id,
-};
-builtin_i2c_driver(mc9s08dz60_i2c_driver);
--
2.26.2
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