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Commit 1142f709 authored by Jonathan Cameron's avatar Jonathan Cameron Committed by Greg Kroah-Hartman
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staging:iio:adc:adt75 old to new event handling conversion 



Another one where the events are 'unusual'.  Still left sorting
that out for another day.

Untested changes

Signed-off-by: default avatarJonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 4f2c1b02

drivers/staging/iio/adc/adt75.c

+43 −101
Original line number Diff line number Diff line
@@ -7,15 +7,11 @@ 
 */



#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"
@@ -57,8 +53,6 @@ struct adt75_chip_info { 
	const char *name;

	struct i2c_client *client;

	struct iio_dev *indio_dev;

	struct work_struct thresh_work;

	s64 last_timestamp;

	u8  config;

};
@@ -279,33 +273,15 @@ static const struct attribute_group adt75_attribute_group = { 


#define IIO_EVENT_CODE_ADT75_OTI    IIO_BUFFER_EVENT_CODE(0)



static void adt75_interrupt_bh(struct work_struct *work_s)

static irqreturn_t adt75_event_handler(int irq, void *private)

{

	struct adt75_chip_info *chip =

		container_of(work_s, struct adt75_chip_info, thresh_work);



	enable_irq(chip->client->irq);



	iio_push_event(chip->indio_dev, 0,

	iio_push_event(private, 0,

		       IIO_EVENT_CODE_ADT75_OTI,

			chip->last_timestamp);

}

		       iio_get_time_ns());



static int adt75_interrupt(struct iio_dev *dev_info,

		int index,

		s64 timestamp,

		int no_test)

{

	struct adt75_chip_info *chip = dev_info->dev_data;



	chip->last_timestamp = timestamp;

	schedule_work(&chip->thresh_work);



	return 0;

	return IRQ_HANDLED;

}



IIO_EVENT_SH(adt75, &adt75_interrupt);



static ssize_t adt75_show_oti_mode(struct device *dev,

		struct device_attribute *attr,

		char *buf)
@@ -458,16 +434,16 @@ static ssize_t adt75_set_fault_queue(struct device *dev, 
}

static inline ssize_t adt75_show_t_bound(struct device *dev,

		struct device_attribute *attr,

		u8 bound_reg,

		char *buf)

{

	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);

	struct iio_dev *dev_info = dev_get_drvdata(dev);

	struct adt75_chip_info *chip = dev_info->dev_data;

	u16 data;

	char sign = ' ';

	int ret;



	ret = adt75_i2c_read(chip, bound_reg, (u8 *)&data);

	ret = adt75_i2c_read(chip, this_attr->address, (u8 *)&data);

	if (ret)

		return -EIO;
@@ -485,10 +461,10 @@ static inline ssize_t adt75_show_t_bound(struct device *dev, 


static inline ssize_t adt75_set_t_bound(struct device *dev,

		struct device_attribute *attr,

		u8 bound_reg,

		const char *buf,

		size_t len)

{

	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);

	struct iio_dev *dev_info = dev_get_drvdata(dev);

	struct adt75_chip_info *chip = dev_info->dev_data;

	long tmp1, tmp2;
@@ -525,67 +501,42 @@ static inline ssize_t adt75_set_t_bound(struct device *dev, 
	data <<= ADT75_VALUE_OFFSET;

	data = swab16(data);



	ret = adt75_i2c_write(chip, bound_reg, (u8)data);

	ret = adt75_i2c_write(chip, this_attr->address, (u8)data);

	if (ret)

		return -EIO;



	return ret;

}



static ssize_t adt75_show_t_os(struct device *dev,

		struct device_attribute *attr,

		char *buf)

{

	return adt75_show_t_bound(dev, attr,

			ADT75_T_OS, buf);

}



static inline ssize_t adt75_set_t_os(struct device *dev,

		struct device_attribute *attr,

		const char *buf,

		size_t len)

{

	return adt75_set_t_bound(dev, attr,

			ADT75_T_OS, buf, len);

}



static ssize_t adt75_show_t_hyst(struct device *dev,

		struct device_attribute *attr,

		char *buf)

{

	return adt75_show_t_bound(dev, attr,

			ADT75_T_HYST, buf);

}



static inline ssize_t adt75_set_t_hyst(struct device *dev,

		struct device_attribute *attr,

		const char *buf,

		size_t len)

{

	return adt75_set_t_bound(dev, attr,

			ADT75_T_HYST, buf, len);

}



IIO_EVENT_ATTR_SH(oti_mode, iio_event_adt75,

static IIO_DEVICE_ATTR(oti_mode,

		       S_IRUGO | S_IWUSR,

		       adt75_show_oti_mode, adt75_set_oti_mode, 0);

IIO_EVENT_ATTR_SH(available_oti_modes, iio_event_adt75,

static IIO_DEVICE_ATTR(available_oti_modes,

		       S_IRUGO,

		       adt75_show_available_oti_modes, NULL, 0);

IIO_EVENT_ATTR_SH(smbus_alart, iio_event_adt75,

static IIO_DEVICE_ATTR(smbus_alart,

		       S_IRUGO | S_IWUSR,

		       adt75_show_smbus_alart, adt75_set_smbus_alart, 0);

IIO_EVENT_ATTR_SH(fault_queue, iio_event_adt75,

static IIO_DEVICE_ATTR(fault_queue,

		       S_IRUGO | S_IWUSR,

		       adt75_show_fault_queue, adt75_set_fault_queue, 0);

IIO_EVENT_ATTR_SH(t_os, iio_event_adt75,

		adt75_show_t_os, adt75_set_t_os, 0);

IIO_EVENT_ATTR_SH(t_hyst, iio_event_adt75,

		adt75_show_t_hyst, adt75_set_t_hyst, 0);

static IIO_DEVICE_ATTR(t_os_value,

		       S_IRUGO | S_IWUSR,

		       adt75_show_t_bound, adt75_set_t_bound,

		       ADT75_T_OS);

static IIO_DEVICE_ATTR(t_hyst_value,

		       S_IRUGO | S_IWUSR,

		       adt75_show_t_bound, adt75_set_t_bound,

		       ADT75_T_HYST);



static struct attribute *adt75_event_attributes[] = {

	&iio_event_attr_oti_mode.dev_attr.attr,

	&iio_event_attr_available_oti_modes.dev_attr.attr,

	&iio_event_attr_smbus_alart.dev_attr.attr,

	&iio_event_attr_fault_queue.dev_attr.attr,

	&iio_event_attr_t_os.dev_attr.attr,

	&iio_event_attr_t_hyst.dev_attr.attr,

	&iio_dev_attr_oti_mode.dev_attr.attr,

	&iio_dev_attr_available_oti_modes.dev_attr.attr,

	&iio_dev_attr_smbus_alart.dev_attr.attr,

	&iio_dev_attr_fault_queue.dev_attr.attr,

	&iio_dev_attr_t_os_value.dev_attr.attr,

	&iio_dev_attr_t_hyst_value.dev_attr.attr,

	NULL,

};
@@ -633,24 +584,15 @@ static int __devinit adt75_probe(struct i2c_client *client, 
		goto error_free_dev;



	if (client->irq > 0) {

		ret = iio_register_interrupt_line(client->irq,

				chip->indio_dev,

				0,

		ret = request_threaded_irq(client->irq,

					   NULL,

					   &adt75_event_handler,

					   IRQF_TRIGGER_LOW,

				chip->name);

					   chip->name,

					   chip->indio_dev);

		if (ret)

			goto error_unreg_dev;



		/*

		 * The event handler list element refer to iio_event_adt75.

		 * All event attributes bind to the same event handler.

		 * So, only register event handler once.

		 */

		iio_add_event_to_list(&iio_event_adt75,

				&chip->indio_dev->interrupts[0]->ev_list);



		INIT_WORK(&chip->thresh_work, adt75_interrupt_bh);



		ret = adt75_i2c_read(chip, ADT75_CONFIG, &chip->config);

		if (ret) {

			ret = -EIO;
@@ -672,7 +614,7 @@ static int __devinit adt75_probe(struct i2c_client *client, 


	return 0;

error_unreg_irq:

	iio_unregister_interrupt_line(chip->indio_dev, 0);

	free_irq(client->irq, chip->indio_dev);

error_unreg_dev:

	iio_device_unregister(chip->indio_dev);

error_free_dev:
@@ -689,7 +631,7 @@ static int __devexit adt75_remove(struct i2c_client *client) 
	struct iio_dev *indio_dev = chip->indio_dev;



	if (client->irq)

		iio_unregister_interrupt_line(indio_dev, 0);

		free_irq(client->irq, chip->indio_dev);

	iio_device_unregister(indio_dev);

	iio_free_device(chip->indio_dev);

	kfree(chip);