Commit 09770b26 authored by Guenter Roeck's avatar Guenter Roeck Committed by Guenter Roeck
Browse files

hwmon: (lm85) Fix checkpatch issues 



Fixed:
ERROR: code indent should use tabs where possible
ERROR: do not use assignment in if condition
WARNING: simple_strtol is obsolete, use kstrtol instead
WARNING: simple_strtoul is obsolete, use kstrtoul instead

Modify multi-line comments to follow Documentation/CodingStyle.

Also: s/#define^I/#define /

Not fixed (false positive):
ERROR: Macros with multiple statements should be enclosed in a do - while loop

Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 9b03079f

drivers/hwmon/lm85.c

+230 −130
Original line number Diff line number Diff line 
/*

    lm85.c - Part of lm_sensors, Linux kernel modules for hardware

             monitoring

    Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>

    Copyright (c) 2002, 2003  Philip Pokorny <ppokorny@penguincomputing.com>

    Copyright (c) 2003        Margit Schubert-While <margitsw@t-online.de>

    Copyright (c) 2004        Justin Thiessen <jthiessen@penguincomputing.com>

    Copyright (C) 2007--2009  Jean Delvare <khali@linux-fr.org>



    Chip details at	      <http://www.national.com/ds/LM/LM85.pdf>



    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.

 * lm85.c - Part of lm_sensors, Linux kernel modules for hardware

 *	    monitoring

 * Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>

 * Copyright (c) 2002, 2003  Philip Pokorny <ppokorny@penguincomputing.com>

 * Copyright (c) 2003        Margit Schubert-While <margitsw@t-online.de>

 * Copyright (c) 2004        Justin Thiessen <jthiessen@penguincomputing.com>

 * Copyright (C) 2007--2009  Jean Delvare <khali@linux-fr.org>

 *

 * Chip details at	      <http://www.national.com/ds/LM/LM85.pdf>

 *

 * 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>
@@ -125,9 +125,10 @@ enum chips { 
#define EMC6D102_REG_EXTEND_ADC4	0x88





/* Conversions. Rounding and limit checking is only done on the TO_REG

   variants. Note that you should be a bit careful with which arguments

   these macros are called: arguments may be evaluated more than once.

/*

 * Conversions. Rounding and limit checking is only done on the TO_REG

 * variants. Note that you should be a bit careful with which arguments

 * these macros are called: arguments may be evaluated more than once.

 */



/* IN are scaled according to built-in resistors */
@@ -166,7 +167,8 @@ static inline u16 FAN_TO_REG(unsigned long val) 
#define PWM_FROM_REG(val)		(val)





/* ZONEs have the following parameters:

/*

 * ZONEs have the following parameters:

 *    Limit (low) temp,           1. degC

 *    Hysteresis (below limit),   1. degC (0-15)

 *    Range of speed control,     .1 degC (2-80)
@@ -228,7 +230,8 @@ static int FREQ_FROM_REG(const int *map, u8 reg) 
	return map[reg & 0x07];

}



/* Since we can't use strings, I'm abusing these numbers

/*

 * Since we can't use strings, I'm abusing these numbers

 *   to stand in for the following meanings:

 *      1 -- PWM responds to Zone 1

 *      2 -- PWM responds to Zone 2
@@ -258,7 +261,8 @@ static int ZONE_TO_REG(int zone) 
#define HYST_TO_REG(val)	SENSORS_LIMIT(((val) + 500) / 1000, 0, 15)

#define HYST_FROM_REG(val)	((val) * 1000)



/* Chip sampling rates

/*

 * Chip sampling rates

 *

 * Some sensors are not updated more frequently than once per second

 *    so it doesn't make sense to read them more often than that.
@@ -274,7 +278,8 @@ static int ZONE_TO_REG(int zone) 
#define LM85_DATA_INTERVAL  (HZ + HZ / 2)

#define LM85_CONFIG_INTERVAL  (1 * 60 * HZ)



/* LM85 can automatically adjust fan speeds based on temperature

/*

 * LM85 can automatically adjust fan speeds based on temperature

 * This structure encapsulates an entire Zone config.  There are

 * three zones (one for each temperature input) on the lm85

 */
@@ -283,7 +288,8 @@ struct lm85_zone { 
	u8 hyst;	/* Low limit hysteresis. (0-15) */

	u8 range;	/* Temp range, encoded */

	s8 critical;	/* "All fans ON" temp limit */

	u8 max_desired; /* Actual "max" temperature specified.  Preserved

	u8 max_desired; /*

			 * Actual "max" temperature specified.  Preserved

			 * to prevent "drift" as other autofan control

			 * values change.

			 */
@@ -295,8 +301,10 @@ struct lm85_autofan { 
	u8 min_off;	/* Min PWM or OFF below "limit", flag */

};



/* For each registered chip, we need to keep some data in memory.

   The structure is dynamically allocated. */

/*

 * For each registered chip, we need to keep some data in memory.

 * The structure is dynamically allocated.

 */

struct lm85_data {

	struct device *hwmon_dev;

	const int *freq_map;
@@ -391,7 +399,12 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, 
	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	unsigned long val = simple_strtoul(buf, NULL, 10);

	unsigned long val;

	int err;



	err = kstrtoul(buf, 10, &val);

	if (err)

		return err;



	mutex_lock(&data->update_lock);

	data->fan_min[nr] = FAN_TO_REG(val);
@@ -443,7 +456,14 @@ static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, 
		const char *buf, size_t count)

{

	struct lm85_data *data = dev_get_drvdata(dev);

	data->vrm = simple_strtoul(buf, NULL, 10);

	unsigned long val;

	int err;



	err = kstrtoul(buf, 10, &val);

	if (err)

		return err;



	data->vrm = val;

	return count;

}
@@ -500,7 +520,12 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, 
	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	long val = simple_strtol(buf, NULL, 10);

	unsigned long val;

	int err;



	err = kstrtoul(buf, 10, &val);

	if (err)

		return err;



	mutex_lock(&data->update_lock);

	data->pwm[nr] = PWM_TO_REG(val);
@@ -537,8 +562,13 @@ static ssize_t set_pwm_enable(struct device *dev, struct device_attribute 
	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	long val = simple_strtol(buf, NULL, 10);

	u8 config;

	unsigned long val;

	int err;



	err = kstrtoul(buf, 10, &val);

	if (err)

		return err;



	switch (val) {

	case 0:
@@ -548,8 +578,10 @@ static ssize_t set_pwm_enable(struct device *dev, struct device_attribute 
		config = 7;

		break;

	case 2:

		/* Here we have to choose arbitrarily one of the 5 possible

		   configurations; I go for the safest */

		/*

		 * Here we have to choose arbitrarily one of the 5 possible

		 * configurations; I go for the safest

		 */

		config = 6;

		break;

	default:
@@ -588,12 +620,19 @@ static ssize_t set_pwm_freq(struct device *dev, 
	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	long val = simple_strtol(buf, NULL, 10);

	unsigned long val;

	int err;



	err = kstrtoul(buf, 10, &val);

	if (err)

		return err;



	mutex_lock(&data->update_lock);

	/* The ADT7468 has a special high-frequency PWM output mode,

	/*

	 * The ADT7468 has a special high-frequency PWM output mode,

	 * where all PWM outputs are driven by a 22.5 kHz clock.

	 * This might confuse the user, but there's not much we can do. */

	 * This might confuse the user, but there's not much we can do.

	 */

	if (data->type == adt7468 && val >= 11300) {	/* High freq. mode */

		data->cfg5 &= ~ADT7468_HFPWM;

		lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5);
@@ -648,7 +687,12 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, 
	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	long val = simple_strtol(buf, NULL, 10);

	long val;

	int err;



	err = kstrtol(buf, 10, &val);

	if (err)

		return err;



	mutex_lock(&data->update_lock);

	data->in_min[nr] = INS_TO_REG(nr, val);
@@ -671,7 +715,12 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, 
	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	long val = simple_strtol(buf, NULL, 10);

	long val;

	int err;



	err = kstrtol(buf, 10, &val);

	if (err)

		return err;



	mutex_lock(&data->update_lock);

	data->in_max[nr] = INS_TO_REG(nr, val);
@@ -722,7 +771,12 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, 
	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	long val = simple_strtol(buf, NULL, 10);

	long val;

	int err;



	err = kstrtol(buf, 10, &val);

	if (err)

		return err;



	if (IS_ADT7468_OFF64(data))

		val += 64;
@@ -748,7 +802,12 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, 
	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	long val = simple_strtol(buf, NULL, 10);

	long val;

	int err;



	err = kstrtol(buf, 10, &val);

	if (err)

		return err;



	if (IS_ADT7468_OFF64(data))

		val += 64;
@@ -789,7 +848,12 @@ static ssize_t set_pwm_auto_channels(struct device *dev, 
	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	long val = simple_strtol(buf, NULL, 10);

	long val;

	int err;



	err = kstrtol(buf, 10, &val);

	if (err)

		return err;



	mutex_lock(&data->update_lock);

	data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
@@ -814,7 +878,12 @@ static ssize_t set_pwm_auto_pwm_min(struct device *dev, 
	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	long val = simple_strtol(buf, NULL, 10);

	unsigned long val;

	int err;



	err = kstrtoul(buf, 10, &val);

	if (err)

		return err;



	mutex_lock(&data->update_lock);

	data->autofan[nr].min_pwm = PWM_TO_REG(val);
@@ -838,8 +907,13 @@ static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, 
	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	long val = simple_strtol(buf, NULL, 10);

	u8 tmp;

	long val;

	int err;



	err = kstrtol(buf, 10, &val);

	if (err)

		return err;



	mutex_lock(&data->update_lock);

	data->autofan[nr].min_off = val;
@@ -885,7 +959,12 @@ static ssize_t set_temp_auto_temp_off(struct device *dev, 
	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	int min;

	long val = simple_strtol(buf, NULL, 10);

	long val;

	int err;



	err = kstrtol(buf, 10, &val);

	if (err)

		return err;



	mutex_lock(&data->update_lock);

	min = TEMP_FROM_REG(data->zone[nr].limit);
@@ -916,7 +995,12 @@ static ssize_t set_temp_auto_temp_min(struct device *dev, 
	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	long val = simple_strtol(buf, NULL, 10);

	long val;

	int err;



	err = kstrtol(buf, 10, &val);

	if (err)

		return err;



	mutex_lock(&data->update_lock);

	data->zone[nr].limit = TEMP_TO_REG(val);
@@ -951,7 +1035,12 @@ static ssize_t set_temp_auto_temp_max(struct device *dev, 
	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	int min;

	long val = simple_strtol(buf, NULL, 10);

	long val;

	int err;



	err = kstrtol(buf, 10, &val);

	if (err)

		return err;



	mutex_lock(&data->update_lock);

	min = TEMP_FROM_REG(data->zone[nr].limit);
@@ -979,7 +1068,12 @@ static ssize_t set_temp_auto_temp_crit(struct device *dev, 
	int nr = to_sensor_dev_attr(attr)->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct lm85_data *data = i2c_get_clientdata(client);

	long val = simple_strtol(buf, NULL, 10);

	long val;

	int err;



	err = kstrtol(buf, 10, &val);

	if (err)

		return err;



	mutex_lock(&data->update_lock);

	data->zone[nr].critical = TEMP_TO_REG(val);
@@ -1338,24 +1432,28 @@ static int lm85_probe(struct i2c_client *client, 
			goto err_remove_files;

	}



	/* The ADT7463/68 have an optional VRM 10 mode where pin 21 is used

	   as a sixth digital VID input rather than an analog input. */

	/*

	 * The ADT7463/68 have an optional VRM 10 mode where pin 21 is used

	 * as a sixth digital VID input rather than an analog input.

	 */

	if (data->type == adt7463 || data->type == adt7468) {

		u8 vid = lm85_read_value(client, LM85_REG_VID);

		if (vid & 0x80)

			data->has_vid5 = true;

	}



	if (!data->has_vid5)

		if ((err = sysfs_create_group(&client->dev.kobj,

					&lm85_group_in4)))

	if (!data->has_vid5) {

		err = sysfs_create_group(&client->dev.kobj, &lm85_group_in4);

		if (err)

			goto err_remove_files;

	}



	/* The EMC6D100 has 3 additional voltage inputs */

	if (data->type == emc6d100)

		if ((err = sysfs_create_group(&client->dev.kobj,

					&lm85_group_in567)))

	if (data->type == emc6d100) {

		err = sysfs_create_group(&client->dev.kobj, &lm85_group_in567);

		if (err)

			goto err_remove_files;

	}



	data->hwmon_dev = hwmon_device_register(&client->dev);

	if (IS_ERR(data->hwmon_dev)) {
@@ -1443,7 +1541,8 @@ static struct lm85_data *lm85_update_device(struct device *dev) 
		/* Things that change quickly */

		dev_dbg(&client->dev, "Reading sensor values\n");



		/* Have to read extended bits first to "freeze" the

		/*

		 * Have to read extended bits first to "freeze" the

		 * more significant bits that are read later.

		 * There are 2 additional resolution bits per channel and we

		 * have room for 4, so we shift them to the left.
@@ -1503,9 +1602,10 @@ static struct lm85_data *lm85_update_device(struct device *dev) 
						EMC6D100_REG_ALARM3) << 16;

		} else if (data->type == emc6d102 || data->type == emc6d103 ||

			   data->type == emc6d103s) {

			/* Have to read LSB bits after the MSB ones because

			   the reading of the MSB bits has frozen the

			   LSBs (backward from the ADM1027).

			/*

			 * Have to read LSB bits after the MSB ones because

			 * the reading of the MSB bits has frozen the

			 * LSBs (backward from the ADM1027).

			 */

			int ext1 = lm85_read_value(client,

						   EMC6D102_REG_EXTEND_ADC1);

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