tsl2550: Move from i2c/chips to misc

Move the last remaining driver from i2c/chips to misc. Good ridance!

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>

5 files changed, 1 insertions, 512 deletions

diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig
index 02ce9cff5fcf..7bcde5d45ee3 100644
--- a/drivers/i2c/Kconfig
+++ b/drivers/i2c/Kconfig
@@ -73,7 +73,6 @@ config I2C_SMBUS
 
 source drivers/i2c/algos/Kconfig
 source drivers/i2c/busses/Kconfig
-source drivers/i2c/chips/Kconfig
 
 config I2C_DEBUG_CORE
         bool "I2C Core debugging messages"
diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile
index acd0250c16a0..a7d9b4be9bb3 100644
--- a/drivers/i2c/Makefile
+++ b/drivers/i2c/Makefile
@@ -6,7 +6,7 @@ obj-$(CONFIG_I2C_BOARDINFO)	+= i2c-boardinfo.o
 obj-$(CONFIG_I2C)               += i2c-core.o
 obj-$(CONFIG_I2C_SMBUS)         += i2c-smbus.o
 obj-$(CONFIG_I2C_CHARDEV)       += i2c-dev.o
-obj-y                           += busses/ chips/ algos/
+obj-y                           += algos/ busses/
 
 ifeq ($(CONFIG_I2C_DEBUG_CORE),y)
 EXTRA_CFLAGS += -DDEBUG
diff --git a/drivers/i2c/chips/Kconfig b/drivers/i2c/chips/Kconfig
deleted file mode 100644
index ae4539d99bef..000000000000
--- a/drivers/i2c/chips/Kconfig
+++ /dev/null
@@ -1,19 +0,0 @@
-#
-# Miscellaneous I2C chip drivers configuration
-#
-# *** DEPRECATED! Do not add new entries! See Makefile ***
-#
-
-menu "Miscellaneous I2C Chip support"
-
-config SENSORS_TSL2550
-        tristate "Taos TSL2550 ambient light sensor"
-        depends on EXPERIMENTAL
-        help
-          If you say yes here you get support for the Taos TSL2550
-          ambient light sensor.
-
-          This driver can also be built as a module.  If so, the module
-          will be called tsl2550.
-
-endmenu
diff --git a/drivers/i2c/chips/Makefile b/drivers/i2c/chips/Makefile
deleted file mode 100644
index fe0af0f81f2d..000000000000
--- a/drivers/i2c/chips/Makefile
+++ /dev/null
@@ -1,18 +0,0 @@
-#
-# Makefile for miscellaneous I2C chip drivers.
-#
-# Do not add new drivers to this directory! It is DEPRECATED.
-#
-# Device drivers are better grouped according to the functionality they
-# implement rather than to the bus they are connected to. In particular:
-# * Hardware monitoring chip drivers go to drivers/hwmon
-# * RTC chip drivers go to drivers/rtc
-# * I/O expander drivers go to drivers/gpio
-#
-
-obj-$(CONFIG_SENSORS_TSL2550)   += tsl2550.o
-
-ifeq ($(CONFIG_I2C_DEBUG_CHIP),y)
-EXTRA_CFLAGS += -DDEBUG
-endif
-
diff --git a/drivers/i2c/chips/tsl2550.c b/drivers/i2c/chips/tsl2550.c
deleted file mode 100644
index a0702f36a72f..000000000000
--- a/drivers/i2c/chips/tsl2550.c
+++ /dev/null
@@ -1,473 +0,0 @@
-/*
- *  tsl2550.c - Linux kernel modules for ambient light sensor
- *
- *  Copyright (C) 2007 Rodolfo Giometti <giometti@linux.it>
- *  Copyright (C) 2007 Eurotech S.p.A. <info@eurotech.it>
- *
- *  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 in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/mutex.h>
-
-#define TSL2550_DRV_NAME        "tsl2550"
-#define DRIVER_VERSION          "1.2"
-
-/*
- * Defines
- */
-
-#define TSL2550_POWER_DOWN              0x00
-#define TSL2550_POWER_UP                0x03
-#define TSL2550_STANDARD_RANGE          0x18
-#define TSL2550_EXTENDED_RANGE          0x1d
-#define TSL2550_READ_ADC0               0x43
-#define TSL2550_READ_ADC1               0x83
-
-/*
- * Structs
- */
-
-struct tsl2550_data {
-        struct i2c_client *client;
-        struct mutex update_lock;
-
-        unsigned int power_state : 1;
-        unsigned int operating_mode : 1;
-};
-
-/*
- * Global data
- */
-
-static const u8 TSL2550_MODE_RANGE[2] = {
-        TSL2550_STANDARD_RANGE, TSL2550_EXTENDED_RANGE,
-};
-
-/*
- * Management functions
- */
-
-static int tsl2550_set_operating_mode(struct i2c_client *client, int mode)
-{
-        struct tsl2550_data *data = i2c_get_clientdata(client);
-
-        int ret = i2c_smbus_write_byte(client, TSL2550_MODE_RANGE[mode]);
-
-        data->operating_mode = mode;
-
-        return ret;
-}
-
-static int tsl2550_set_power_state(struct i2c_client *client, int state)
-{
-        struct tsl2550_data *data = i2c_get_clientdata(client);
-        int ret;
-
-        if (state == 0)
-                ret = i2c_smbus_write_byte(client, TSL2550_POWER_DOWN);
-        else {
-                ret = i2c_smbus_write_byte(client, TSL2550_POWER_UP);
-
-                /* On power up we should reset operating mode also... */
-                tsl2550_set_operating_mode(client, data->operating_mode);
-        }
-
-        data->power_state = state;
-
-        return ret;
-}
-
-static int tsl2550_get_adc_value(struct i2c_client *client, u8 cmd)
-{
-        int ret;
-
-        ret = i2c_smbus_read_byte_data(client, cmd);
-        if (ret < 0)
-                return ret;
-        if (!(ret & 0x80))
-                return -EAGAIN;
-        return ret & 0x7f;      /* remove the "valid" bit */
-}
-
-/*
- * LUX calculation
- */
-
-#define TSL2550_MAX_LUX         1846
-
-static const u8 ratio_lut[] = {
-        100, 100, 100, 100, 100, 100, 100, 100,
-        100, 100, 100, 100, 100, 100, 99, 99,
-        99, 99, 99, 99, 99, 99, 99, 99,
-        99, 99, 99, 98, 98, 98, 98, 98,
-        98, 98, 97, 97, 97, 97, 97, 96,
-        96, 96, 96, 95, 95, 95, 94, 94,
-        93, 93, 93, 92, 92, 91, 91, 90,
-        89, 89, 88, 87, 87, 86, 85, 84,
-        83, 82, 81, 80, 79, 78, 77, 75,
-        74, 73, 71, 69, 68, 66, 64, 62,
-        60, 58, 56, 54, 52, 49, 47, 44,
-        42, 41, 40, 40, 39, 39, 38, 38,
-        37, 37, 37, 36, 36, 36, 35, 35,
-        35, 35, 34, 34, 34, 34, 33, 33,
-        33, 33, 32, 32, 32, 32, 32, 31,
-        31, 31, 31, 31, 30, 30, 30, 30,
-        30,
-};
-
-static const u16 count_lut[] = {
-        0, 1, 2, 3, 4, 5, 6, 7,
-        8, 9, 10, 11, 12, 13, 14, 15,
-        16, 18, 20, 22, 24, 26, 28, 30,
-        32, 34, 36, 38, 40, 42, 44, 46,
-        49, 53, 57, 61, 65, 69, 73, 77,
-        81, 85, 89, 93, 97, 101, 105, 109,
-        115, 123, 131, 139, 147, 155, 163, 171,
-        179, 187, 195, 203, 211, 219, 227, 235,
-        247, 263, 279, 295, 311, 327, 343, 359,
-        375, 391, 407, 423, 439, 455, 471, 487,
-        511, 543, 575, 607, 639, 671, 703, 735,
-        767, 799, 831, 863, 895, 927, 959, 991,
-        1039, 1103, 1167, 1231, 1295, 1359, 1423, 1487,
-        1551, 1615, 1679, 1743, 1807, 1871, 1935, 1999,
-        2095, 2223, 2351, 2479, 2607, 2735, 2863, 2991,
-        3119, 3247, 3375, 3503, 3631, 3759, 3887, 4015,
-};
-
-/*
- * This function is described into Taos TSL2550 Designer's Notebook
- * pages 2, 3.
- */
-static int tsl2550_calculate_lux(u8 ch0, u8 ch1)
-{
-        unsigned int lux;
-
-        /* Look up count from channel values */
-        u16 c0 = count_lut[ch0];
-        u16 c1 = count_lut[ch1];
-
-        /*
-         * Calculate ratio.
-         * Note: the "128" is a scaling factor
-         */
-        u8 r = 128;
-
-        /* Avoid division by 0 and count 1 cannot be greater than count 0 */
-        if (c1 <= c0)
-                if (c0) {
-                        r = c1 * 128 / c0;
-
-                        /* Calculate LUX */
-                        lux = ((c0 - c1) * ratio_lut[r]) / 256;
-                } else
-                        lux = 0;
-        else
-                return -EAGAIN;
-
-        /* LUX range check */
-        return lux > TSL2550_MAX_LUX ? TSL2550_MAX_LUX : lux;
-}
-
-/*
- * SysFS support
- */
-
-static ssize_t tsl2550_show_power_state(struct device *dev,
-                struct device_attribute *attr, char *buf)
-{
-        struct tsl2550_data *data = i2c_get_clientdata(to_i2c_client(dev));
-
-        return sprintf(buf, "%u\n", data->power_state);
-}
-
-static ssize_t tsl2550_store_power_state(struct device *dev,
-                struct device_attribute *attr, const char *buf, size_t count)
-{
-        struct i2c_client *client = to_i2c_client(dev);
-        struct tsl2550_data *data = i2c_get_clientdata(client);
-        unsigned long val = simple_strtoul(buf, NULL, 10);
-        int ret;
-
-        if (val < 0 || val > 1)
-                return -EINVAL;
-
-        mutex_lock(&data->update_lock);
-        ret = tsl2550_set_power_state(client, val);
-        mutex_unlock(&data->update_lock);
-
-        if (ret < 0)
-                return ret;
-
-        return count;
-}
-
-static DEVICE_ATTR(power_state, S_IWUSR | S_IRUGO,
-                   tsl2550_show_power_state, tsl2550_store_power_state);
-
-static ssize_t tsl2550_show_operating_mode(struct device *dev,
-                struct device_attribute *attr, char *buf)
-{
-        struct tsl2550_data *data = i2c_get_clientdata(to_i2c_client(dev));
-
-        return sprintf(buf, "%u\n", data->operating_mode);
-}
-
-static ssize_t tsl2550_store_operating_mode(struct device *dev,
-                struct device_attribute *attr, const char *buf, size_t count)
-{
-        struct i2c_client *client = to_i2c_client(dev);
-        struct tsl2550_data *data = i2c_get_clientdata(client);
-        unsigned long val = simple_strtoul(buf, NULL, 10);
-        int ret;
-
-        if (val < 0 || val > 1)
-                return -EINVAL;
-
-        if (data->power_state == 0)
-                return -EBUSY;
-
-        mutex_lock(&data->update_lock);
-        ret = tsl2550_set_operating_mode(client, val);
-        mutex_unlock(&data->update_lock);
-
-        if (ret < 0)
-                return ret;
-
-        return count;
-}
-
-static DEVICE_ATTR(operating_mode, S_IWUSR | S_IRUGO,
-                   tsl2550_show_operating_mode, tsl2550_store_operating_mode);
-
-static ssize_t __tsl2550_show_lux(struct i2c_client *client, char *buf)
-{
-        struct tsl2550_data *data = i2c_get_clientdata(client);
-        u8 ch0, ch1;
-        int ret;
-
-        ret = tsl2550_get_adc_value(client, TSL2550_READ_ADC0);
-        if (ret < 0)
-                return ret;
-        ch0 = ret;
-
-        ret = tsl2550_get_adc_value(client, TSL2550_READ_ADC1);
-        if (ret < 0)
-                return ret;
-        ch1 = ret;
-
-        /* Do the job */
-        ret = tsl2550_calculate_lux(ch0, ch1);
-        if (ret < 0)
-                return ret;
-        if (data->operating_mode == 1)
-                ret *= 5;
-
-        return sprintf(buf, "%d\n", ret);
-}
-
-static ssize_t tsl2550_show_lux1_input(struct device *dev,
-                        struct device_attribute *attr, char *buf)
-{
-        struct i2c_client *client = to_i2c_client(dev);
-        struct tsl2550_data *data = i2c_get_clientdata(client);
-        int ret;
-
-        /* No LUX data if not operational */
-        if (!data->power_state)
-                return -EBUSY;
-
-        mutex_lock(&data->update_lock);
-        ret = __tsl2550_show_lux(client, buf);
-        mutex_unlock(&data->update_lock);
-
-        return ret;
-}
-
-static DEVICE_ATTR(lux1_input, S_IRUGO,
-                   tsl2550_show_lux1_input, NULL);
-
-static struct attribute *tsl2550_attributes[] = {
-        &dev_attr_power_state.attr,
-        &dev_attr_operating_mode.attr,
-        &dev_attr_lux1_input.attr,
-        NULL
-};
-
-static const struct attribute_group tsl2550_attr_group = {
-        .attrs = tsl2550_attributes,
-};
-
-/*
- * Initialization function
- */
-
-static int tsl2550_init_client(struct i2c_client *client)
-{
-        struct tsl2550_data *data = i2c_get_clientdata(client);
-        int err;
-
-        /*
-         * Probe the chip. To do so we try to power up the device and then to
-         * read back the 0x03 code
-         */
-        err = i2c_smbus_read_byte_data(client, TSL2550_POWER_UP);
-        if (err < 0)
-                return err;
-        if (err != TSL2550_POWER_UP)
-                return -ENODEV;
-        data->power_state = 1;
-
-        /* Set the default operating mode */
-        err = i2c_smbus_write_byte(client,
-                                   TSL2550_MODE_RANGE[data->operating_mode]);
-        if (err < 0)
-                return err;
-
-        return 0;
-}
-
-/*
- * I2C init/probing/exit functions
- */
-
-static struct i2c_driver tsl2550_driver;
-static int __devinit tsl2550_probe(struct i2c_client *client,
-                                   const struct i2c_device_id *id)
-{
-        struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
-        struct tsl2550_data *data;
-        int *opmode, err = 0;
-
-        if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_BYTE
-                                            | I2C_FUNC_SMBUS_READ_BYTE_DATA)) {
-                err = -EIO;
-                goto exit;
-        }
-
-        data = kzalloc(sizeof(struct tsl2550_data), GFP_KERNEL);
-        if (!data) {
-                err = -ENOMEM;
-                goto exit;
-        }
-        data->client = client;
-        i2c_set_clientdata(client, data);
-
-        /* Check platform data */
-        opmode = client->dev.platform_data;
-        if (opmode) {
-                if (*opmode < 0 || *opmode > 1) {
-                        dev_err(&client->dev, "invalid operating_mode (%d)\n",
-                                        *opmode);
-                        err = -EINVAL;
-                        goto exit_kfree;
-                }
-                data->operating_mode = *opmode;
-        } else
-                data->operating_mode = 0;       /* default mode is standard */
-        dev_info(&client->dev, "%s operating mode\n",
-                        data->operating_mode ? "extended" : "standard");
-
-        mutex_init(&data->update_lock);
-
-        /* Initialize the TSL2550 chip */
-        err = tsl2550_init_client(client);
-        if (err)
-                goto exit_kfree;
-
-        /* Register sysfs hooks */
-        err = sysfs_create_group(&client->dev.kobj, &tsl2550_attr_group);
-        if (err)
-                goto exit_kfree;
-
-        dev_info(&client->dev, "support ver. %s enabled\n", DRIVER_VERSION);
-
-        return 0;
-
-exit_kfree:
-        kfree(data);
-exit:
-        return err;
-}
-
-static int __devexit tsl2550_remove(struct i2c_client *client)
-{
-        sysfs_remove_group(&client->dev.kobj, &tsl2550_attr_group);
-
-        /* Power down the device */
-        tsl2550_set_power_state(client, 0);
-
-        kfree(i2c_get_clientdata(client));
-
-        return 0;
-}
-
-#ifdef CONFIG_PM
-
-static int tsl2550_suspend(struct i2c_client *client, pm_message_t mesg)
-{
-        return tsl2550_set_power_state(client, 0);
-}
-
-static int tsl2550_resume(struct i2c_client *client)
-{
-        return tsl2550_set_power_state(client, 1);
-}
-
-#else
-
-#define tsl2550_suspend         NULL
-#define tsl2550_resume          NULL
-
-#endif /* CONFIG_PM */
-
-static const struct i2c_device_id tsl2550_id[] = {
-        { "tsl2550", 0 },
-        { }
-};
-MODULE_DEVICE_TABLE(i2c, tsl2550_id);
-
-static struct i2c_driver tsl2550_driver = {
-        .driver = {
-                .name   = TSL2550_DRV_NAME,
-                .owner  = THIS_MODULE,
-        },
-        .suspend = tsl2550_suspend,
-        .resume = tsl2550_resume,
-        .probe  = tsl2550_probe,
-        .remove = __devexit_p(tsl2550_remove),
-        .id_table = tsl2550_id,
-};
-
-static int __init tsl2550_init(void)
-{
-        return i2c_add_driver(&tsl2550_driver);
-}
-
-static void __exit tsl2550_exit(void)
-{
-        i2c_del_driver(&tsl2550_driver);
-}
-
-MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>");
-MODULE_DESCRIPTION("TSL2550 ambient light sensor driver");
-MODULE_LICENSE("GPL");
-MODULE_VERSION(DRIVER_VERSION);
-
-module_init(tsl2550_init);
-module_exit(tsl2550_exit);