i2c/chips: Remove deprecated pca9539 driver

The pca9539 driver in drivers/i2c/chips which just exports its registers to
sysfs is superseded by drivers/gpio/pca953x.c which properly uses the gpiolib.
As this driver has been deprecated for more than a year, finally remove it.

Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Ben Gardner <gardner.ben@gmail.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

3 files changed, 0 insertions, 166 deletions

diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
index 1b5455ec2903..8cd1a7f3dcbe 100644
--- a/drivers/i2c/chips/Kconfig
+++ b/drivers/i2c/chips/Kconfig
@@ -33,19 +33,6 @@ config SENSORS_PCF8574
           These devices are hard to detect and rarely found on mainstream
           hardware.  If unsure, say N.
 
-config SENSORS_PCA9539
-        tristate "Philips PCA9539 16-bit I/O port (DEPRECATED)"
-        depends on EXPERIMENTAL && GPIO_PCA953X = "n"
-        help
-          If you say yes here you get support for the Philips PCA9539
-          16-bit I/O port.
-
-          This driver can also be built as a module.  If so, the module
-          will be called pca9539.
-
-          This driver is deprecated and will be dropped soon. Use
-          drivers/gpio/pca953x.c instead.
-
 config SENSORS_TSL2550
         tristate "Taos TSL2550 ambient light sensor"
         depends on EXPERIMENTAL
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
index fceb377f5280..8cd778dd64e5 100644
--- a/drivers/i2c/chips/Makefile
+++ b/drivers/i2c/chips/Makefile
@@ -11,7 +11,6 @@
 #
 
 obj-$(CONFIG_DS1682)            += ds1682.o
-obj-$(CONFIG_SENSORS_PCA9539)   += pca9539.o
 obj-$(CONFIG_SENSORS_PCF8574)   += pcf8574.o
 obj-$(CONFIG_SENSORS_TSL2550)   += tsl2550.o
 
diff --git a/drivers/i2c/chips/pca9539.c b/drivers/i2c/chips/pca9539.c
deleted file mode 100644
index 270de4e56a81..000000000000
--- a/drivers/i2c/chips/pca9539.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
-    pca9539.c - 16-bit I/O port with interrupt and reset
-
-    Copyright (C) 2005 Ben Gardner <bgardner@wabtec.com>
-
-    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; version 2 of the License.
-*/
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/hwmon-sysfs.h>
-
-/* Addresses to scan: none, device is not autodetected */
-static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
-
-/* Insmod parameters */
-I2C_CLIENT_INSMOD_1(pca9539);
-
-enum pca9539_cmd
-{
-        PCA9539_INPUT_0         = 0,
-        PCA9539_INPUT_1         = 1,
-        PCA9539_OUTPUT_0        = 2,
-        PCA9539_OUTPUT_1        = 3,
-        PCA9539_INVERT_0        = 4,
-        PCA9539_INVERT_1        = 5,
-        PCA9539_DIRECTION_0     = 6,
-        PCA9539_DIRECTION_1     = 7,
-};
-
-/* following are the sysfs callback functions */
-static ssize_t pca9539_show(struct device *dev, struct device_attribute *attr,
-                            char *buf)
-{
-        struct sensor_device_attribute *psa = to_sensor_dev_attr(attr);
-        struct i2c_client *client = to_i2c_client(dev);
-        return sprintf(buf, "%d\n", i2c_smbus_read_byte_data(client,
-                                                             psa->index));
-}
-
-static ssize_t pca9539_store(struct device *dev, struct device_attribute *attr,
-                             const char *buf, size_t count)
-{
-        struct sensor_device_attribute *psa = to_sensor_dev_attr(attr);
-        struct i2c_client *client = to_i2c_client(dev);
-        unsigned long val = simple_strtoul(buf, NULL, 0);
-        if (val > 0xff)
-                return -EINVAL;
-        i2c_smbus_write_byte_data(client, psa->index, val);
-        return count;
-}
-
-/* Define the device attributes */
-
-#define PCA9539_ENTRY_RO(name, cmd_idx) \
-        static SENSOR_DEVICE_ATTR(name, S_IRUGO, pca9539_show, NULL, cmd_idx)
-
-#define PCA9539_ENTRY_RW(name, cmd_idx) \
-        static SENSOR_DEVICE_ATTR(name, S_IRUGO | S_IWUSR, pca9539_show, \
-                                  pca9539_store, cmd_idx)
-
-PCA9539_ENTRY_RO(input0, PCA9539_INPUT_0);
-PCA9539_ENTRY_RO(input1, PCA9539_INPUT_1);
-PCA9539_ENTRY_RW(output0, PCA9539_OUTPUT_0);
-PCA9539_ENTRY_RW(output1, PCA9539_OUTPUT_1);
-PCA9539_ENTRY_RW(invert0, PCA9539_INVERT_0);
-PCA9539_ENTRY_RW(invert1, PCA9539_INVERT_1);
-PCA9539_ENTRY_RW(direction0, PCA9539_DIRECTION_0);
-PCA9539_ENTRY_RW(direction1, PCA9539_DIRECTION_1);
-
-static struct attribute *pca9539_attributes[] = {
-        &sensor_dev_attr_input0.dev_attr.attr,
-        &sensor_dev_attr_input1.dev_attr.attr,
-        &sensor_dev_attr_output0.dev_attr.attr,
-        &sensor_dev_attr_output1.dev_attr.attr,
-        &sensor_dev_attr_invert0.dev_attr.attr,
-        &sensor_dev_attr_invert1.dev_attr.attr,
-        &sensor_dev_attr_direction0.dev_attr.attr,
-        &sensor_dev_attr_direction1.dev_attr.attr,
-        NULL
-};
-
-static struct attribute_group pca9539_defattr_group = {
-        .attrs = pca9539_attributes,
-};
-
-/* Return 0 if detection is successful, -ENODEV otherwise */
-static int pca9539_detect(struct i2c_client *client, int kind,
-                          struct i2c_board_info *info)
-{
-        struct i2c_adapter *adapter = client->adapter;
-
-        if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
-                return -ENODEV;
-
-        strlcpy(info->type, "pca9539", I2C_NAME_SIZE);
-
-        return 0;
-}
-
-static int pca9539_probe(struct i2c_client *client,
-                         const struct i2c_device_id *id)
-{
-        /* Register sysfs hooks */
-        return sysfs_create_group(&client->dev.kobj,
-                                  &pca9539_defattr_group);
-}
-
-static int pca9539_remove(struct i2c_client *client)
-{
-        sysfs_remove_group(&client->dev.kobj, &pca9539_defattr_group);
-        return 0;
-}
-
-static const struct i2c_device_id pca9539_id[] = {
-        { "pca9539", 0 },
-        { }
-};
-
-static struct i2c_driver pca9539_driver = {
-        .driver = {
-                .name   = "pca9539",
-        },
-        .probe          = pca9539_probe,
-        .remove         = pca9539_remove,
-        .id_table       = pca9539_id,
-
-        .detect         = pca9539_detect,
-        .address_data   = &addr_data,
-};
-
-static int __init pca9539_init(void)
-{
-        return i2c_add_driver(&pca9539_driver);
-}
-
-static void __exit pca9539_exit(void)
-{
-        i2c_del_driver(&pca9539_driver);
-}
-
-MODULE_AUTHOR("Ben Gardner <bgardner@wabtec.com>");
-MODULE_DESCRIPTION("PCA9539 driver");
-MODULE_LICENSE("GPL");
-
-module_init(pca9539_init);
-module_exit(pca9539_exit);
-