Deleted: trunk/drivers/staging/iio/adc/ad7414.c (9427 => 9428)
--- trunk/drivers/staging/iio/adc/ad7414.c 2010-10-26 11:32:25 UTC (rev 9427)
+++ trunk/drivers/staging/iio/adc/ad7414.c 2010-10-26 13:36:09 UTC (rev 9428)
@@ -1,570 +0,0 @@
-/*
- * AD7414 digital temperature sensor driver supporting AD7414 and AD7415
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/interrupt.h>
-#include <linux/gpio.h>
-#include <linux/workqueue.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/list.h>
-#include <linux/i2c.h>
-#include <linux/rtc.h>
-
-#include "../iio.h"
-#include "../sysfs.h"
-
-/*
- * AD7414 registers definition
- */
-
-#define AD7414_TEMPERATURE 0
-#define AD7414_CONFIG 1
-#define AD7414_TEMPERATURE_HIGH 2
-#define AD7414_TEMPERATURE_LOW 3
-
-/*
- * AD7414 config bits
- */
-#define AD7414_TEST_MODE 0x3
-#define AD7414_ONE_SHOT 0x4
-#define AD7414_ALERT_RESET 0x8
-#define AD7414_ALERT_POLARITY 0x10
-#define AD7414_ALERT_EN 0x20
-#define AD7414_FLTR 0x40
-#define AD7414_PD 0x80
-
-/*
- * AD7414 masks
- */
-#define AD7414_TEMP_SIGN 0x200
-#define AD7414_TEMP_MASK 0xFFC0
-#define AD7414_TEMP_OFFSET 6
-#define AD7414_ALERT_FLAG 0x20
-#define AD7414_T_SIGN 0x80
-#define AD7414_T_HIGH_FLAG 0x10
-#define AD7414_T_LOW_FLAG 0x8
-
-
-/*
- * struct ad7414_chip_info - chip specifc information
- */
-
-struct ad7414_chip_info {
- const char *name;
- struct i2c_client *client;
- struct iio_dev *indio_dev;
- struct work_struct thresh_work;
- s64 last_timestamp;
- u8 mode;
-};
-
-/*
- * ad7414 register access by I2C
- */
-
-static int ad7414_i2c_read(struct ad7414_chip_info *chip, u8 reg, u8 *data)
-{
- struct i2c_client *client = chip->client;
- int ret = 0, len;
-
- ret = i2c_smbus_write_byte(client, reg);
- if (ret < 0) {
- dev_err(&client->dev, "I2C read register address error\n");
- return ret;
- }
-
- if (reg == AD7414_TEMPERATURE)
- len = 2;
- else
- len = 1;
-
- ret = i2c_master_recv(client, data, len);
- if (ret < 0) {
- dev_err(&client->dev, "I2C read error\n");
- return ret;
- }
-
- return ret;
-}
-
-static int ad7414_i2c_write(struct ad7414_chip_info *chip, u8 reg, u8 data)
-{
- struct i2c_client *client = chip->client;
- int ret = 0;
-
- ret = i2c_smbus_write_byte_data(client, reg, data);
- if (ret < 0)
- dev_err(&client->dev, "I2C write error\n");
-
- return ret;
-}
-
-static ssize_t ad7414_show_mode(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad7414_chip_info *chip = dev_info->dev_data;
-
- if (chip->mode)
- return sprintf(buf, "power-save\n");
- else
- return sprintf(buf, "full\n");
-}
-
-static ssize_t ad7414_store_mode(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad7414_chip_info *chip = dev_info->dev_data;
- u8 config;
- int ret;
-
- ret = ad7414_i2c_read(chip, AD7414_CONFIG, &config);
- if (ret)
- return -EIO;
-
- if (strcmp(buf, "full")) {
- chip->mode = 0;
- config &= ~AD7414_PD;
- } else {
- chip->mode = 1;
- config |= AD7414_PD;
- }
-
- ret = ad7414_i2c_write(chip, AD7414_CONFIG, config);
- if (ret)
- return -EIO;
-
- return ret;
-}
-
-static IIO_DEVICE_ATTR(mode, S_IRUGO | S_IWUSR,
- ad7414_show_mode,
- ad7414_store_mode,
- 0);
-
-static ssize_t ad7414_show_available_modes(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return sprintf(buf, "full\npower-save\n");
-}
-
-static IIO_DEVICE_ATTR(available_modes, S_IRUGO, ad7414_show_available_modes, NULL, 0);
-
-static ssize_t ad7414_show_temperature(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad7414_chip_info *chip = dev_info->dev_data;
- u8 config;
- u16 data;
- char sign = ' ';
- int ret;
-
- if (chip->mode) {
- ret = ad7414_i2c_read(chip, AD7414_CONFIG, &config);
- if (ret)
- return -EIO;
- ret = ad7414_i2c_write(chip, AD7414_CONFIG,
- config | AD7414_ONE_SHOT);
- if (ret)
- return -EIO;
- }
-
- ret = ad7414_i2c_read(chip, AD7414_TEMPERATURE, (u8 *)&data);
- if (ret)
- return -EIO;
-
- data = "" >> AD7414_TEMP_OFFSET;
- if (data & AD7414_TEMP_SIGN) {
- data = "" << 1) - data;
- sign = '-';
- }
-
- return sprintf(buf, "%c%d.%.2d\n", sign, (data >> 2), (data & 3) * 25);
-}
-
-static IIO_DEVICE_ATTR(temperature, S_IRUGO, ad7414_show_temperature, NULL, 0);
-
-static ssize_t ad7414_show_name(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad7414_chip_info *chip = dev_info->dev_data;
- return sprintf(buf, "%s\n", chip->name);
-}
-
-static IIO_DEVICE_ATTR(name, S_IRUGO, ad7414_show_name, NULL, 0);
-
-static struct attribute *ad7414_attributes[] = {
- &iio_dev_attr_available_modes.dev_attr.attr,
- &iio_dev_attr_mode.dev_attr.attr,
- &iio_dev_attr_temperature.dev_attr.attr,
- &iio_dev_attr_name.dev_attr.attr,
- NULL,
-};
-
-static const struct attribute_group ad7414_attribute_group = {
- .attrs = ad7414_attributes,
-};
-
-/*
- * temperature bound events
- */
-
-#define IIO_EVENT_CODE_AD7414_T_HIGH IIO_BUFFER_EVENT_CODE(0)
-#define IIO_EVENT_CODE_AD7414_T_LOW IIO_BUFFER_EVENT_CODE(1)
-
-static void ad7414_interrupt_bh(struct work_struct *work_s)
-{
- struct ad7414_chip_info *chip =
- container_of(work_s, struct ad7414_chip_info, thresh_work);
- u16 status;
- u8 config;
- int ret;
-
- /* retrive ALART status */
- ret = ad7414_i2c_read(chip, AD7414_TEMPERATURE, (u8 *)&status);
- if (ret)
- return;
- status = swab16(status);
-
- /* clear ALART pin in chip configuration register */
- ret = ad7414_i2c_read(chip, AD7414_CONFIG, &config);
- if (ret)
- return;
- ret = ad7414_i2c_write(chip, AD7414_CONFIG,
- config | AD7414_ALERT_RESET);
- if (ret)
- return;
-
- enable_irq(chip->client->irq);
-
- if (status & AD7414_T_HIGH_FLAG)
- iio_push_event(chip->indio_dev, 0,
- IIO_EVENT_CODE_AD7414_T_HIGH,
- chip->last_timestamp);
- else if (status & AD7414_T_LOW_FLAG)
- iio_push_event(chip->indio_dev, 0,
- IIO_EVENT_CODE_AD7414_T_LOW,
- chip->last_timestamp);
-}
-
-static int ad7414_interrupt(struct iio_dev *dev_info,
- int index,
- s64 timestamp,
- int no_test)
-{
- struct ad7414_chip_info *chip = dev_info->dev_data;
-
- chip->last_timestamp = timestamp;
- schedule_work(&chip->thresh_work);
-
- return 0;
-}
-
-IIO_EVENT_SH(ad7414, &ad7414_interrupt);
-
-static ssize_t ad7414_show_enabled(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad7414_chip_info *chip = dev_info->dev_data;
- u8 config;
- int ret;
-
- /* retrive ALART status */
- ret = ad7414_i2c_read(chip, AD7414_CONFIG, &config);
- if (ret)
- return -EIO;
-
- return sprintf(buf, "%d\n", !!(config & AD7414_ALERT_EN));
-}
-
-static ssize_t ad7414_set_enabled(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad7414_chip_info *chip = dev_info->dev_data;
- unsigned long data;
- u8 config;
- int ret;
-
- ret = strict_strtoul(buf, 10, &data);
- if (ret)
- return -EINVAL;
-
- /* retrive ALART status */
- ret = ad7414_i2c_read(chip, AD7414_CONFIG, &config);
- if (ret)
- return -EIO;
-
- if (data)
- ret = ad7414_i2c_write(chip, AD7414_CONFIG,
- config & ~AD7414_ALERT_EN);
- else
- ret = ad7414_i2c_write(chip, AD7414_CONFIG,
- config | AD7414_ALERT_EN);
- if (ret)
- return -EIO;
-
- return ret;
-}
-
-static inline ssize_t ad7414_show_temperature_bound(struct device *dev,
- struct device_attribute *attr,
- u8 bound_reg,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad7414_chip_info *chip = dev_info->dev_data;
- s8 data;
- int ret;
-
- ret = ad7414_i2c_read(chip, bound_reg, &data);
- if (ret)
- return -EIO;
-
- if (data & AD7414_T_SIGN)
- data = "" - AD7414_T_SIGN;
-
- return sprintf(buf, "%d\n", data);
-}
-
-static inline ssize_t ad7414_set_temperature_bound(struct device *dev,
- struct device_attribute *attr,
- u8 bound_reg,
- const char *buf,
- size_t len)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct ad7414_chip_info *chip = dev_info->dev_data;
- long data;
- s8 value;
- int ret;
-
- ret = strict_strtol(buf, 10, &data);
-
- if (ret || data > 127 || data < -128)
- return -EINVAL;
-
- value = (s8)data;
- if (value < 0)
- value = (AD7414_T_SIGN + value) | AD7414_T_SIGN;
-
- ret = ad7414_i2c_write(chip, bound_reg, value);
- if (ret)
- return -EIO;
-
- return ret;
-}
-
-static ssize_t ad7414_show_temperature_high(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return ad7414_show_temperature_bound(dev, attr,
- AD7414_TEMPERATURE_HIGH, buf);
-}
-
-static inline ssize_t ad7414_set_temperature_high(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
-{
- return ad7414_set_temperature_bound(dev, attr,
- AD7414_TEMPERATURE_HIGH, buf, len);
-}
-
-static ssize_t ad7414_show_temperature_low(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return ad7414_show_temperature_bound(dev, attr,
- AD7414_TEMPERATURE_LOW, buf);
-}
-
-static inline ssize_t ad7414_set_temperature_low(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
-{
- return ad7414_set_temperature_bound(dev, attr,
- AD7414_TEMPERATURE_LOW, buf, len);
-}
-
-IIO_EVENT_ATTR_SH(t_bound_enabled, iio_event_ad7414,
- ad7414_show_enabled, ad7414_set_enabled, 0);
-IIO_EVENT_ATTR_SH(temperature_high, iio_event_ad7414,
- ad7414_show_temperature_high, ad7414_set_temperature_high, 0);
-IIO_EVENT_ATTR_SH(temperature_low, iio_event_ad7414,
- ad7414_show_temperature_low, ad7414_set_temperature_low, 0);
-
-static struct attribute *ad7414_event_attributes[] = {
- &iio_event_attr_t_bound_enabled.dev_attr.attr,
- &iio_event_attr_temperature_high.dev_attr.attr,
- &iio_event_attr_temperature_low.dev_attr.attr,
- NULL,
-};
-
-static struct attribute_group ad7414_event_attribute_group = {
- .attrs = ad7414_event_attributes,
-};
-
-/*
- * device probe and remove
- */
-
-static int __devinit ad7414_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct ad7414_chip_info *chip;
- int ret = 0;
- u8 config;
-
- chip = kzalloc(sizeof(struct ad7414_chip_info), GFP_KERNEL);
-
- if (chip == NULL)
- return -ENOMEM;
-
- /* this is only used for device removal purposes */
- i2c_set_clientdata(client, chip);
-
- chip->client = client;
- chip->name = id->name;
-
- chip->indio_dev = iio_allocate_device();
- if (chip->indio_dev == NULL) {
- ret = -ENOMEM;
- goto error_free_chip;
- }
-
- chip->indio_dev->dev.parent = &client->dev;
- chip->indio_dev->attrs = &ad7414_attribute_group;
- if (strcmp(id->name, "ad7414") == 0)
- chip->indio_dev->event_attrs = &ad7414_event_attribute_group;
- else
- client->irq = 0;
- chip->indio_dev->dev_data = (void *)chip;
- chip->indio_dev->driver_module = THIS_MODULE;
- chip->indio_dev->num_interrupt_lines = 1;
- chip->indio_dev->modes = INDIO_DIRECT_MODE;
-
- ret = iio_device_register(chip->indio_dev);
- if (ret)
- goto error_free_dev;
-
- if (client->irq) {
- ret = iio_register_interrupt_line(client->irq,
- chip->indio_dev,
- 0,
- IRQF_TRIGGER_LOW,
- chip->name);
- if (ret)
- goto error_unreg_dev;
-
- /*
- * The event handler list element refer to iio_event_ad7414.
- * All event attributes bind to the same event handler.
- * So, only register event handler once.
- */
- iio_add_event_to_list(&iio_event_ad7414,
- &chip->indio_dev->interrupts[0]->ev_list);
-
- INIT_WORK(&chip->thresh_work, ad7414_interrupt_bh);
-
- ret = ad7414_i2c_read(chip, AD7414_CONFIG, &config);
- if (ret) {
- ret = -EIO;
- goto error_unreg_irq;
- }
-
- /* set irq polarity low level */
- ret = ad7414_i2c_write(chip, AD7414_CONFIG,
- config & ~AD7414_ALERT_POLARITY);
- if (ret) {
- ret = -EIO;
- goto error_unreg_irq;
- }
- }
-
- dev_info(&client->dev, "%s temperature sensor registered.\n",
- id->name);
-
- return 0;
-error_unreg_irq:
- iio_unregister_interrupt_line(chip->indio_dev, 0);
-error_unreg_dev:
- iio_device_unregister(chip->indio_dev);
-error_free_dev:
- iio_free_device(chip->indio_dev);
-error_free_chip:
- kfree(chip);
-
- return ret;
-}
-
-static int __devexit ad7414_remove(struct i2c_client *client)
-{
- struct ad7414_chip_info *chip = i2c_get_clientdata(client);
- struct iio_dev *indio_dev = chip->indio_dev;
-
- if (client->irq)
- iio_unregister_interrupt_line(indio_dev, 0);
- iio_device_unregister(indio_dev);
- iio_free_device(chip->indio_dev);
- kfree(chip);
-
- return 0;
-}
-
-static const struct i2c_device_id ad7414_id[] = {
- { "ad7414", 0 },
- { "ad7415", 0 },
- {}
-};
-
-MODULE_DEVICE_TABLE(i2c, ad7414_id);
-
-static struct i2c_driver ad7414_driver = {
- .driver = {
- .name = "ad7414",
- },
- .probe = ad7414_probe,
- .remove = __devexit_p(ad7414_remove),
- .id_table = ad7414_id,
-};
-
-static __init int ad7414_init(void)
-{
- return i2c_add_driver(&ad7414_driver);
-}
-
-static __exit void ad7414_exit(void)
-{
- i2c_del_driver(&ad7414_driver);
-}
-
-MODULE_AUTHOR("Sonic Zhang <[email protected]>");
-MODULE_DESCRIPTION("Analog Devices AD7414 and AD7415 digital"
- " temperature sensor driver");
-MODULE_LICENSE("GPL v2");
-
-module_init(ad7414_init);
-module_exit(ad7414_exit);
Deleted: trunk/drivers/staging/iio/adc/adt7408.c (9427 => 9428)
--- trunk/drivers/staging/iio/adc/adt7408.c 2010-10-26 11:32:25 UTC (rev 9427)
+++ trunk/drivers/staging/iio/adc/adt7408.c 2010-10-26 13:36:09 UTC (rev 9428)
@@ -1,1004 +0,0 @@
-/*
- * ADT7408 digital temperature sensor driver supporting ADT7408
- *
- * Copyright 2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#include <linux/interrupt.h>
-#include <linux/gpio.h>
-#include <linux/workqueue.h>
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/list.h>
-#include <linux/i2c.h>
-#include <linux/rtc.h>
-
-#include "../iio.h"
-#include "../sysfs.h"
-
-/*
- * ADT7408 registers definition
- */
-
-#define ADT7408_CAPABILITY 0
-#define ADT7408_CONFIG 1
-#define ADT7408_T_ALARM_HIGH 2
-#define ADT7408_T_ALARM_LOW 3
-#define ADT7408_T_CRIT 4
-#define ADT7408_TEMPERATURE 5
-#define ADT7408_MANUFACTURER_ID 6
-#define ADT7408_DEVICE_ID 7
-
-/*
- * ADT7408 capability
- */
-#define ADT7408_CAP_ALARM_CRIT_TRIPS 0x1
-#define ADT7408_CAP_HIGH_PRECISION 0x2
-#define ADT7408_CAP_WIDER_RANGE 0x4
-#define ADT7408_CAP_T_RESOLUTION_MASK 0x18
-#define ADT7408_CAP_T_RESOLUTION_HIGH 0x18
-#define ADT7408_CAP_T_RESOLUTION_LOW 0x8
-
-/*
- * ADT7408 config
- */
-#define ADT7408_EVENT_MODE 0x1
-#define ADT7408_EVENT_POLARITY 0x2
-#define ADT7408_EVENT_CRIT_ONLY 0x4
-#define ADT7408_EVENT_ENABLE 0x8
-#define ADT7408_EVENT_STATUS 0x10
-#define ADT7408_EVENT_CLEAR 0x20
-#define ADT7408_EVENT_ALARM_LOCK 0x40
-#define ADT7408_EVENT_CRIT_LOCK 0x80
-#define ADT7408_PD 0x100
-#define ADT7408_HISTERESIS_MASK 0x600
-#define ADT7408_HISTERESIS_1_5 0x200
-#define ADT7408_HISTERESIS_3 0x400
-#define ADT7408_HISTERESIS_6 0x600
-
-/*
- * ADT7408 masks
- */
-#define ADT7408_BOUND_VALUE_SIGN 0x400
-#define ADT7408_BOUND_VALUE_OFFSET 2
-#define ADT7408_BOUND_VALUE_FLOAT_OFFSET 2
-#define ADT7408_BOUND_VALUE_FLOAT_MASK 0x3
-#define ADT7408_T_VALUE_SIGN 0x1000
-#define ADT7408_T_VALUE_FLOAT_OFFSET 4
-#define ADT7408_T_VALUE_FLOAT_MASK 0xF
-
-/*
- * ADT7408 event source
- */
-#define ADT7408_T_BELLOW_ALARM 0x2000
-#define ADT7408_T_ABOVE_ALARM 0x4000
-#define ADT7408_T_ABOVE_CRIT 0x8000
-
-
-/*
- * struct adt7408_chip_info - chip specifc information
- */
-
-struct adt7408_chip_info {
- const char *name;
- struct i2c_client *client;
- struct iio_dev *indio_dev;
- struct work_struct thresh_work;
- s64 last_timestamp;
- u16 config;
-};
-
-/*
- * adt7408 register access by I2C
- */
-
-static int adt7408_i2c_read(struct adt7408_chip_info *chip, u8 reg, u16 *data)
-{
- struct i2c_client *client = chip->client;
- int ret = 0;
-
- ret = i2c_smbus_read_word_data(client, reg);
- if (ret < 0) {
- dev_err(&client->dev, "I2C read error\n");
- return ret;
- }
-
- *data = ""
-
- return 0;
-}
-
-static int adt7408_i2c_write(struct adt7408_chip_info *chip, u8 reg, u16 data)
-{
- struct i2c_client *client = chip->client;
- int ret = 0;
-
- ret = i2c_smbus_write_word_data(client, reg, swab16(data));
- if (ret < 0)
- dev_err(&client->dev, "I2C write error\n");
-
- return ret;
-}
-
-static int adt7408_is_event_locked(struct adt7408_chip_info *chip)
-{
- return chip->config & (ADT7408_EVENT_ALARM_LOCK | ADT7408_EVENT_ALARM_LOCK);
-}
-
-static ssize_t adt7408_show_mode(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
-
- if (chip->config & ADT7408_PD)
- return sprintf(buf, "power-save\n");
- else
- return sprintf(buf, "full\n");
-}
-
-static ssize_t adt7408_store_mode(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- u16 config;
- int ret;
-
- if (adt7408_is_event_locked(chip)) {
- dev_err(dev, "Warning: Events are locked.\n");
- return -EIO;
- }
-
- ret = adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config);
- if (ret)
- return -EIO;
-
- config = chip->config & (~ADT7408_PD);
- if (!strcmp(buf, "full"))
- config |= ADT7408_PD;
-
- ret = adt7408_i2c_write(chip, ADT7408_CONFIG, config);
- if (ret)
- return -EIO;
-
- chip->config = config;
-
- return ret;
-}
-
-static IIO_DEVICE_ATTR(mode, S_IRUGO | S_IWUSR,
- adt7408_show_mode,
- adt7408_store_mode,
- 0);
-
-static ssize_t adt7408_show_available_modes(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return sprintf(buf, "full\npower-down\n");
-}
-
-static IIO_DEVICE_ATTR(available_modes, S_IRUGO, adt7408_show_available_modes, NULL, 0);
-
-static ssize_t adt7408_show_capability(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- u16 capability;
- int ret;
-
- ret = adt7408_i2c_read(chip, ADT7408_CAPABILITY, &capability);
- if (ret)
- return -EIO;
-
- return sprintf(buf, "0x%x\n", capability);
-}
-
-static IIO_DEVICE_ATTR(capability, S_IRUGO | S_IWUSR,
- adt7408_show_capability,
- NULL,
- 0);
-
-static ssize_t adt7408_show_manufactory_id(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- u16 id;
- int ret;
-
- ret = adt7408_i2c_read(chip, ADT7408_MANUFACTURER_ID, &id);
- if (ret)
- return -EIO;
-
- return sprintf(buf, "0x%x\n", id);
-}
-
-static IIO_DEVICE_ATTR(manufactory_id, S_IRUGO | S_IWUSR,
- adt7408_show_manufactory_id,
- NULL,
- 0);
-
-static ssize_t adt7408_show_device_id(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- u16 id;
- int ret;
-
- ret = adt7408_i2c_read(chip, ADT7408_MANUFACTURER_ID, &id);
- if (ret)
- return -EIO;
-
- return sprintf(buf, "0x%x\n", id);
-}
-
-static IIO_DEVICE_ATTR(device_id, S_IRUGO | S_IWUSR,
- adt7408_show_device_id,
- NULL,
- 0);
-
-static ssize_t adt7408_show_value(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- u16 data;
- char sign = ' ';
- int ret;
-
- if (chip->config & ADT7408_PD) {
- dev_err(dev, "Can't read value in power-down mode.\n");
- return -EIO;
- }
-
- ret = adt7408_i2c_read(chip, ADT7408_TEMPERATURE, &data);
- if (ret)
- return -EIO;
-
- if (data & ADT7408_T_VALUE_SIGN) {
- /* convert supplement to positive value */
- data = "" << 1) - data;
- sign = '-';
- }
-
- return sprintf(buf, "%c%d.%.4d\n", sign,
- (data >> ADT7408_T_VALUE_FLOAT_OFFSET),
- (data & ADT7408_T_VALUE_FLOAT_MASK) * 625);
-}
-
-static IIO_DEVICE_ATTR(value, S_IRUGO, adt7408_show_value, NULL, 0);
-
-static ssize_t adt7408_show_name(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- return sprintf(buf, "%s\n", chip->name);
-}
-
-static IIO_DEVICE_ATTR(name, S_IRUGO, adt7408_show_name, NULL, 0);
-
-static struct attribute *adt7408_attributes[] = {
- &iio_dev_attr_available_modes.dev_attr.attr,
- &iio_dev_attr_mode.dev_attr.attr,
- &iio_dev_attr_capability.dev_attr.attr,
- &iio_dev_attr_device_id.dev_attr.attr,
- &iio_dev_attr_manufactory_id.dev_attr.attr,
- &iio_dev_attr_value.dev_attr.attr,
- &iio_dev_attr_name.dev_attr.attr,
- NULL,
-};
-
-static const struct attribute_group adt7408_attribute_group = {
- .attrs = adt7408_attributes,
-};
-
-/*
- * temperature bound events
- */
-
-#define IIO_EVENT_CODE_ADT7408_ABOVE_ALARM IIO_BUFFER_EVENT_CODE(0)
-#define IIO_EVENT_CODE_ADT7408_BELLOW_ALARM IIO_BUFFER_EVENT_CODE(1)
-#define IIO_EVENT_CODE_ADT7408_ABOVE_CRIT IIO_BUFFER_EVENT_CODE(2)
-
-static void adt7408_interrupt_bh(struct work_struct *work_s)
-{
- struct adt7408_chip_info *chip =
- container_of(work_s, struct adt7408_chip_info, thresh_work);
- u16 config;
- u16 data;
-
- if (adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config))
- return;
-
- if (!(chip->config & ADT7408_EVENT_STATUS))
- return;
-
- config = chip->config & ~ADT7408_EVENT_CLEAR;
- if (data)
- config |= ADT7408_EVENT_CLEAR;
-
- adt7408_i2c_write(chip, ADT7408_CONFIG, config);
-
- if (adt7408_i2c_read(chip, ADT7408_TEMPERATURE, &data))
- goto exit;
-
- if (data & ADT7408_T_ABOVE_ALARM)
- iio_push_event(chip->indio_dev, 0,
- IIO_EVENT_CODE_ADT7408_ABOVE_ALARM,
- chip->last_timestamp);
- if (data & ADT7408_T_BELLOW_ALARM)
- iio_push_event(chip->indio_dev, 0,
- IIO_EVENT_CODE_ADT7408_BELLOW_ALARM,
- chip->last_timestamp);
- if (data & ADT7408_T_ABOVE_CRIT)
- iio_push_event(chip->indio_dev, 0,
- IIO_EVENT_CODE_ADT7408_ABOVE_CRIT,
- chip->last_timestamp);
-exit:
- enable_irq(chip->client->irq);
-}
-
-static int adt7408_interrupt(struct iio_dev *dev_info,
- int index,
- s64 timestamp,
- int no_test)
-{
- struct adt7408_chip_info *chip = dev_info->dev_data;
-
- chip->last_timestamp = timestamp;
- schedule_work(&chip->thresh_work);
-
- return 0;
-}
-
-IIO_EVENT_SH(adt7408, &adt7408_interrupt);
-
-static ssize_t adt7408_show_event_mode(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- int ret;
-
- ret = adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config);
- if (ret)
- return -EIO;
-
- if (chip->config & ADT7408_EVENT_MODE)
- return sprintf(buf, "interrupt\n");
- else
- return sprintf(buf, "comparator\n");
-}
-
-static ssize_t adt7408_set_event_mode(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- u16 config;
- int ret;
-
- if (adt7408_is_event_locked(chip)) {
- dev_err(dev, "Warning: Events are locked.\n");
- return -EIO;
- }
-
- ret = adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config);
- if (ret)
- return -EIO;
-
- config = chip->config &= ~ADT7408_EVENT_MODE;
- if (strcmp(buf, "comparator") != 0)
- config |= ADT7408_EVENT_MODE;
-
- ret = adt7408_i2c_write(chip, ADT7408_CONFIG, config);
- if (ret)
- return -EIO;
-
- chip->config = config;
-
- return ret;
-}
-
-static ssize_t adt7408_show_available_event_modes(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return sprintf(buf, "comparator\ninterrupt\n");
-}
-
-static ssize_t adt7408_show_event_crit_only(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- int ret;
-
- ret = adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config);
- if (ret)
- return -EIO;
-
- return sprintf(buf, "%d\n", !!(chip->config & ADT7408_EVENT_CRIT_ONLY));
-}
-
-static ssize_t adt7408_set_event_crit_only(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- unsigned long data = ""
- u16 config;
- int ret;
-
- if (adt7408_is_event_locked(chip)) {
- dev_err(dev, "Warning: Events are locked.\n");
- return -EIO;
- }
-
- ret = strict_strtoul(buf, 10, &data);
- if (ret)
- return -EINVAL;
-
- ret = adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config);
- if (ret)
- return -EIO;
-
- config = chip->config &= ~ADT7408_EVENT_CRIT_ONLY;
- if (data)
- config |= ADT7408_EVENT_CRIT_ONLY;
-
- ret = adt7408_i2c_write(chip, ADT7408_CONFIG, config);
- if (ret)
- return -EIO;
-
- chip->config = config;
-
- return ret;
-}
-
-static ssize_t adt7408_show_event_enable(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- int ret;
-
- ret = adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config);
- if (ret)
- return -EIO;
-
- return sprintf(buf, "%d\n", !!(chip->config & ADT7408_EVENT_ENABLE));
-}
-
-static ssize_t adt7408_set_event_enable(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- unsigned long data;
- u16 config;
- int ret;
-
- if (adt7408_is_event_locked(chip)) {
- dev_err(dev, "Warning: Events are locked.\n");
- return -EIO;
- }
-
- ret = strict_strtoul(buf, 10, &data);
- if (ret)
- return -EINVAL;
-
- ret = adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config);
- if (ret)
- return -EIO;
-
- config = chip->config & ~ADT7408_EVENT_ENABLE;
- if (data)
- config |= ADT7408_EVENT_ENABLE;
-
- ret = adt7408_i2c_write(chip, ADT7408_CONFIG, config);
- if (ret)
- return -EIO;
-
- chip->config = config;
-
- return ret;
-}
-
-static ssize_t adt7408_show_alarm_lock(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- int ret;
-
- ret = adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config);
- if (ret)
- return -EIO;
-
- return sprintf(buf, "%d\n", !!(chip->config & ADT7408_EVENT_ALARM_LOCK));
-}
-
-static ssize_t adt7408_set_alarm_lock(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- unsigned long data;
- u16 config;
- int ret;
-
- ret = strict_strtoul(buf, 10, &data);
- if (ret)
- return -EINVAL;
-
- ret = adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config);
- if (ret)
- return -EIO;
-
- config = chip->config & ~ADT7408_EVENT_ALARM_LOCK;
- if (data)
- config |= ADT7408_EVENT_ALARM_LOCK;
-
- ret = adt7408_i2c_write(chip, ADT7408_CONFIG, config);
- if (ret)
- return -EIO;
-
- chip->config = config;
-
- return ret;
-}
-
-static ssize_t adt7408_show_crit_lock(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- int ret;
-
- ret = adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config);
- if (ret)
- return -EIO;
-
- return sprintf(buf, "%d\n", !!(chip->config & ADT7408_EVENT_CRIT_LOCK));
-}
-
-static ssize_t adt7408_set_crit_lock(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- unsigned long data;
- u16 config;
- int ret;
-
- ret = strict_strtoul(buf, 10, &data);
- if (ret)
- return -EINVAL;
-
- ret = adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config);
- if (ret)
- return -EIO;
-
- config = chip->config & ~ADT7408_EVENT_CRIT_LOCK;
- if (data)
- config |= ADT7408_EVENT_CRIT_LOCK;
-
- ret = adt7408_i2c_write(chip, ADT7408_CONFIG, config);
- if (ret)
- return -EIO;
-
- chip->config = config;
-
- return ret;
-}
-
-
-static inline ssize_t adt7408_show_t_bound(struct device *dev,
- struct device_attribute *attr,
- u8 bound_reg,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- u16 data;
- char sign = ' ';
- int ret;
-
- ret = adt7408_i2c_read(chip, bound_reg, &data);
- if (ret)
- return -EIO;
-
- data >>= ADT7408_BOUND_VALUE_OFFSET;
- if (data & ADT7408_BOUND_VALUE_SIGN) {
- /* convert supplement to positive value */
- data = "" << 1) - data;
- sign = '-';
- }
-
- return sprintf(buf, "%c%d.%.2d\n", sign,
- data >> ADT7408_BOUND_VALUE_FLOAT_OFFSET,
- (data & ADT7408_BOUND_VALUE_FLOAT_MASK) * 25);
-}
-
-static inline ssize_t adt7408_set_t_bound(struct device *dev,
- struct device_attribute *attr,
- u8 bound_reg,
- const char *buf,
- size_t len)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- long tmp1, tmp2;
- u16 data;
- char *pos;
- int ret;
-
- pos = strchr(buf, '.');
-
- ret = strict_strtol(buf, 10, &tmp1);
-
- if (ret || tmp1 > 127 || tmp1 < -128)
- return -EINVAL;
-
- if (pos) {
- len = strlen(pos);
- if (len > ADT7408_BOUND_VALUE_FLOAT_OFFSET)
- len = ADT7408_BOUND_VALUE_FLOAT_OFFSET;
- pos[len] = 0;
- ret = strict_strtol(pos, 10, &tmp2);
-
- if (!ret)
- tmp2 = (tmp2 / 25) * 25;
- }
-
- if (tmp1 < 0)
- data = ""
- else
- data = ""
- data = "" << ADT7408_BOUND_VALUE_FLOAT_OFFSET) |
- (tmp2 & ADT7408_BOUND_VALUE_FLOAT_MASK);
- if (tmp1 < 0)
- /* convert positive value to supplyment */
- data = "" << 1) - data;
- data <<= ADT7408_BOUND_VALUE_OFFSET;
-
- ret = adt7408_i2c_write(chip, bound_reg, data);
- if (ret)
- return -EIO;
-
- return ret;
-}
-
-static ssize_t adt7408_show_t_alarm_high(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return adt7408_show_t_bound(dev, attr,
- ADT7408_T_ALARM_HIGH, buf);
-}
-
-static inline ssize_t adt7408_set_t_alarm_high(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
-{
- return adt7408_set_t_bound(dev, attr,
- ADT7408_T_ALARM_HIGH, buf, len);
-}
-
-static ssize_t adt7408_show_t_alarm_low(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return adt7408_show_t_bound(dev, attr,
- ADT7408_T_ALARM_LOW, buf);
-}
-
-static inline ssize_t adt7408_set_t_alarm_low(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
-{
- return adt7408_set_t_bound(dev, attr,
- ADT7408_T_ALARM_LOW, buf, len);
-}
-
-static ssize_t adt7408_show_t_crit(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return adt7408_show_t_bound(dev, attr,
- ADT7408_T_CRIT, buf);
-}
-
-static inline ssize_t adt7408_set_t_crit(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
-{
- return adt7408_set_t_bound(dev, attr,
- ADT7408_T_CRIT, buf, len);
-}
-
-static ssize_t adt7408_show_t_hyst(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- int ret;
-
- /* retrive ALART status */
- ret = adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config);
- if (ret)
- return -EIO;
-
- switch (chip->config & ADT7408_HISTERESIS_MASK) {
- case ADT7408_HISTERESIS_1_5:
- return sprintf(buf, "1.5\n");
- case ADT7408_HISTERESIS_3:
- return sprintf(buf, "3\n");
- case ADT7408_HISTERESIS_6:
- return sprintf(buf, "6\n");
- default:
- return sprintf(buf, "Disabled\n");
- }
-}
-
-static inline ssize_t adt7408_set_t_hyst(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t len)
-{
- struct iio_dev *dev_info = dev_get_drvdata(dev);
- struct adt7408_chip_info *chip = dev_info->dev_data;
- int ret;
- u16 config = 0;
-
- if (strcmp(buf, "disble"))
- config = ADT7408_HISTERESIS_MASK;
- else if (strcmp(buf, "1.5"))
- config = ADT7408_HISTERESIS_1_5;
- else if (len > 1 && buf[0] == '3')
- config = ADT7408_HISTERESIS_6;
- else if (len > 1 && buf[0] == '6')
- config = ADT7408_HISTERESIS_6;
-
- if (!config)
- return -EINVAL;
-
- /* retrive ALART status */
- ret = adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config);
- if (ret)
- return -EIO;
-
- config |= chip->config & ~ADT7408_HISTERESIS_MASK;
-
- ret = adt7408_i2c_write(chip, ADT7408_CONFIG, config);
- if (ret)
- return -EIO;
-
- chip->config = config;
- return ret;
-}
-
-static ssize_t adt7408_show_available_t_hyst(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- return sprintf(buf, "1.5\n3\n6\ndisable\n");
-}
-
-IIO_EVENT_ATTR_SH(event_mode, iio_event_adt7408,
- adt7408_show_event_mode, adt7408_set_event_mode, 0);
-IIO_EVENT_ATTR_SH(available_event_modes, iio_event_adt7408,
- adt7408_show_available_event_modes, NULL, 0);
-IIO_EVENT_ATTR_SH(event_crit_only, iio_event_adt7408,
- adt7408_show_event_crit_only, adt7408_set_event_crit_only, 0);
-IIO_EVENT_ATTR_SH(event_enable, iio_event_adt7408,
- adt7408_show_event_enable, adt7408_set_event_enable, 0);
-IIO_EVENT_ATTR_SH(alarm_lock, iio_event_adt7408,
- adt7408_show_alarm_lock, adt7408_set_alarm_lock, 0);
-IIO_EVENT_ATTR_SH(crit_lock, iio_event_adt7408,
- adt7408_show_crit_lock, adt7408_set_crit_lock, 0);
-IIO_EVENT_ATTR_SH(t_alarm_high, iio_event_adt7408,
- adt7408_show_t_alarm_high, adt7408_set_t_alarm_high, 0);
-IIO_EVENT_ATTR_SH(t_alarm_low, iio_event_adt7408,
- adt7408_show_t_alarm_low, adt7408_set_t_alarm_low, 0);
-IIO_EVENT_ATTR_SH(t_crit, iio_event_adt7408,
- adt7408_show_t_crit, adt7408_set_t_crit, 0);
-IIO_EVENT_ATTR_SH(t_hyst, iio_event_adt7408,
- adt7408_show_t_hyst, adt7408_set_t_hyst, 0);
-IIO_EVENT_ATTR_SH(available_t_hyst, iio_event_adt7408,
- adt7408_show_available_t_hyst, NULL, 0);
-
-static struct attribute *adt7408_event_attributes[] = {
- &iio_event_attr_event_mode.dev_attr.attr,
- &iio_event_attr_available_event_modes.dev_attr.attr,
- &iio_event_attr_event_crit_only.dev_attr.attr,
- &iio_event_attr_event_enable.dev_attr.attr,
- &iio_event_attr_alarm_lock.dev_attr.attr,
- &iio_event_attr_crit_lock.dev_attr.attr,
- &iio_event_attr_t_alarm_high.dev_attr.attr,
- &iio_event_attr_t_alarm_low.dev_attr.attr,
- &iio_event_attr_t_crit.dev_attr.attr,
- &iio_event_attr_t_hyst.dev_attr.attr,
- &iio_event_attr_available_t_hyst.dev_attr.attr,
- NULL,
-};
-
-static struct attribute_group adt7408_event_attribute_group = {
- .attrs = adt7408_event_attributes,
-};
-
-/*
- * device probe and remove
- */
-
-static int __devinit adt7408_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct adt7408_chip_info *chip;
- int ret = 0;
-
- chip = kzalloc(sizeof(struct adt7408_chip_info), GFP_KERNEL);
-
- if (chip == NULL)
- return -ENOMEM;
-
- /* this is only used for device removal purposes */
- i2c_set_clientdata(client, chip);
-
- chip->client = client;
- chip->name = id->name;
-
- chip->indio_dev = iio_allocate_device();
- if (chip->indio_dev == NULL) {
- ret = -ENOMEM;
- goto error_free_chip;
- }
-
- chip->indio_dev->dev.parent = &client->dev;
- chip->indio_dev->attrs = &adt7408_attribute_group;
- chip->indio_dev->event_attrs = &adt7408_event_attribute_group;
- chip->indio_dev->dev_data = (void *)chip;
- chip->indio_dev->driver_module = THIS_MODULE;
- chip->indio_dev->num_interrupt_lines = 1;
- chip->indio_dev->modes = INDIO_DIRECT_MODE;
-
- ret = iio_device_register(chip->indio_dev);
- if (ret)
- goto error_free_dev;
-
- if (client->irq) {
- ret = iio_register_interrupt_line(client->irq,
- chip->indio_dev,
- 0,
- IRQF_TRIGGER_LOW,
- chip->name);
- if (ret)
- goto error_unreg_dev;
-
- /*
- * The event handler list element refer to iio_event_adt7408.
- * All event attributes bind to the same event handler.
- * So, only register event handler once.
- */
- iio_add_event_to_list(&iio_event_adt7408,
- &chip->indio_dev->interrupts[0]->ev_list);
-
- INIT_WORK(&chip->thresh_work, adt7408_interrupt_bh);
-
- ret = adt7408_i2c_read(chip, ADT7408_CONFIG, &chip->config);
- if (ret) {
- ret = -EIO;
- goto error_unreg_irq;
- }
-
- /* set irq polarity low level */
- chip->config &= ~ADT7408_EVENT_POLARITY;
-
- ret = adt7408_i2c_write(chip, ADT7408_CONFIG, chip->config);
- if (ret) {
- ret = -EIO;
- goto error_unreg_irq;
- }
- }
-
- dev_info(&client->dev, "%s temperature sensor registered.\n",
- id->name);
-
- return 0;
-
-error_unreg_irq:
- iio_unregister_interrupt_line(chip->indio_dev, 0);
-error_unreg_dev:
- iio_device_unregister(chip->indio_dev);
-error_free_dev:
- iio_free_device(chip->indio_dev);
-error_free_chip:
- kfree(chip);
-
- return ret;
-}
-
-static int __devexit adt7408_remove(struct i2c_client *client)
-{
- struct adt7408_chip_info *chip = i2c_get_clientdata(client);
- struct iio_dev *indio_dev = chip->indio_dev;
-
- if (client->irq)
- iio_unregister_interrupt_line(indio_dev, 0);
- iio_device_unregister(indio_dev);
- iio_free_device(chip->indio_dev);
- kfree(chip);
-
- return 0;
-}
-
-static const struct i2c_device_id adt7408_id[] = {
- { "adt7408", 0 },
- {}
-};
-
-MODULE_DEVICE_TABLE(i2c, adt7408_id);
-
-static struct i2c_driver adt7408_driver = {
- .driver = {
- .name = "adt7408",
- },
- .probe = adt7408_probe,
- .remove = __devexit_p(adt7408_remove),
- .id_table = adt7408_id,
-};
-
-static __init int adt7408_init(void)
-{
- return i2c_add_driver(&adt7408_driver);
-}
-
-static __exit void adt7408_exit(void)
-{
- i2c_del_driver(&adt7408_driver);
-}
-
-MODULE_AUTHOR("Sonic Zhang <[email protected]>");
-MODULE_DESCRIPTION("Analog Devices ADT7408 digital"
- " temperature sensor driver");
-MODULE_LICENSE("GPL v2");
-
-module_init(adt7408_init);
-module_exit(adt7408_exit);
