1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * w83791d.c - Part of lm_sensors, Linux kernel modules for hardware
   4 *	       monitoring
   5 *
   6 * Copyright (C) 2006-2007 Charles Spirakis <bezaur@gmail.com>
   7 */
   8
   9/*
  10 * Supports following chips:
  11 *
  12 * Chip		#vin	#fanin	#pwm	#temp	wchipid	vendid	i2c	ISA
  13 * w83791d	10	5	5	3	0x71	0x5ca3	yes	no
  14 *
  15 * The w83791d chip appears to be part way between the 83781d and the
  16 * 83792d. Thus, this file is derived from both the w83792d.c and
  17 * w83781d.c files.
  18 *
  19 * The w83791g chip is the same as the w83791d but lead-free.
  20 */
  21
  22#include <linux/module.h>
  23#include <linux/init.h>
  24#include <linux/slab.h>
  25#include <linux/i2c.h>
  26#include <linux/hwmon.h>
  27#include <linux/hwmon-vid.h>
  28#include <linux/hwmon-sysfs.h>
  29#include <linux/err.h>
  30#include <linux/mutex.h>
  31#include <linux/jiffies.h>
  32
  33#define NUMBER_OF_VIN		10
  34#define NUMBER_OF_FANIN		5
  35#define NUMBER_OF_TEMPIN	3
  36#define NUMBER_OF_PWM		5
  37
  38/* Addresses to scan */
  39static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
  40						I2C_CLIENT_END };
  41
  42/* Insmod parameters */
  43
  44static unsigned short force_subclients[4];
  45module_param_array(force_subclients, short, NULL, 0);
  46MODULE_PARM_DESC(force_subclients,
  47		 "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}");
  48
  49static bool reset;
  50module_param(reset, bool, 0);
  51MODULE_PARM_DESC(reset, "Set to one to force a hardware chip reset");
  52
  53static bool init;
  54module_param(init, bool, 0);
  55MODULE_PARM_DESC(init, "Set to one to force extra software initialization");
  56
  57/* The W83791D registers */
  58static const u8 W83791D_REG_IN[NUMBER_OF_VIN] = {
  59	0x20,			/* VCOREA in DataSheet */
  60	0x21,			/* VINR0 in DataSheet */
  61	0x22,			/* +3.3VIN in DataSheet */
  62	0x23,			/* VDD5V in DataSheet */
  63	0x24,			/* +12VIN in DataSheet */
  64	0x25,			/* -12VIN in DataSheet */
  65	0x26,			/* -5VIN in DataSheet */
  66	0xB0,			/* 5VSB in DataSheet */
  67	0xB1,			/* VBAT in DataSheet */
  68	0xB2			/* VINR1 in DataSheet */
  69};
  70
  71static const u8 W83791D_REG_IN_MAX[NUMBER_OF_VIN] = {
  72	0x2B,			/* VCOREA High Limit in DataSheet */
  73	0x2D,			/* VINR0 High Limit in DataSheet */
  74	0x2F,			/* +3.3VIN High Limit in DataSheet */
  75	0x31,			/* VDD5V High Limit in DataSheet */
  76	0x33,			/* +12VIN High Limit in DataSheet */
  77	0x35,			/* -12VIN High Limit in DataSheet */
  78	0x37,			/* -5VIN High Limit in DataSheet */
  79	0xB4,			/* 5VSB High Limit in DataSheet */
  80	0xB6,			/* VBAT High Limit in DataSheet */
  81	0xB8			/* VINR1 High Limit in DataSheet */
  82};
  83static const u8 W83791D_REG_IN_MIN[NUMBER_OF_VIN] = {
  84	0x2C,			/* VCOREA Low Limit in DataSheet */
  85	0x2E,			/* VINR0 Low Limit in DataSheet */
  86	0x30,			/* +3.3VIN Low Limit in DataSheet */
  87	0x32,			/* VDD5V Low Limit in DataSheet */
  88	0x34,			/* +12VIN Low Limit in DataSheet */
  89	0x36,			/* -12VIN Low Limit in DataSheet */
  90	0x38,			/* -5VIN Low Limit in DataSheet */
  91	0xB5,			/* 5VSB Low Limit in DataSheet */
  92	0xB7,			/* VBAT Low Limit in DataSheet */
  93	0xB9			/* VINR1 Low Limit in DataSheet */
  94};
  95static const u8 W83791D_REG_FAN[NUMBER_OF_FANIN] = {
  96	0x28,			/* FAN 1 Count in DataSheet */
  97	0x29,			/* FAN 2 Count in DataSheet */
  98	0x2A,			/* FAN 3 Count in DataSheet */
  99	0xBA,			/* FAN 4 Count in DataSheet */
 100	0xBB,			/* FAN 5 Count in DataSheet */
 101};
 102static const u8 W83791D_REG_FAN_MIN[NUMBER_OF_FANIN] = {
 103	0x3B,			/* FAN 1 Count Low Limit in DataSheet */
 104	0x3C,			/* FAN 2 Count Low Limit in DataSheet */
 105	0x3D,			/* FAN 3 Count Low Limit in DataSheet */
 106	0xBC,			/* FAN 4 Count Low Limit in DataSheet */
 107	0xBD,			/* FAN 5 Count Low Limit in DataSheet */
 108};
 109
 110static const u8 W83791D_REG_PWM[NUMBER_OF_PWM] = {
 111	0x81,			/* PWM 1 duty cycle register in DataSheet */
 112	0x83,			/* PWM 2 duty cycle register in DataSheet */
 113	0x94,			/* PWM 3 duty cycle register in DataSheet */
 114	0xA0,			/* PWM 4 duty cycle register in DataSheet */
 115	0xA1,			/* PWM 5 duty cycle register in DataSheet */
 116};
 117
 118static const u8 W83791D_REG_TEMP_TARGET[3] = {
 119	0x85,			/* PWM 1 target temperature for temp 1 */
 120	0x86,			/* PWM 2 target temperature for temp 2 */
 121	0x96,			/* PWM 3 target temperature for temp 3 */
 122};
 123
 124static const u8 W83791D_REG_TEMP_TOL[2] = {
 125	0x87,			/* PWM 1/2 temperature tolerance */
 126	0x97,			/* PWM 3 temperature tolerance */
 127};
 128
 129static const u8 W83791D_REG_FAN_CFG[2] = {
 130	0x84,			/* FAN 1/2 configuration */
 131	0x95,			/* FAN 3 configuration */
 132};
 133
 134static const u8 W83791D_REG_FAN_DIV[3] = {
 135	0x47,			/* contains FAN1 and FAN2 Divisor */
 136	0x4b,			/* contains FAN3 Divisor */
 137	0x5C,			/* contains FAN4 and FAN5 Divisor */
 138};
 139
 140#define W83791D_REG_BANK		0x4E
 141#define W83791D_REG_TEMP2_CONFIG	0xC2
 142#define W83791D_REG_TEMP3_CONFIG	0xCA
 143
 144static const u8 W83791D_REG_TEMP1[3] = {
 145	0x27,			/* TEMP 1 in DataSheet */
 146	0x39,			/* TEMP 1 Over in DataSheet */
 147	0x3A,			/* TEMP 1 Hyst in DataSheet */
 148};
 149
 150static const u8 W83791D_REG_TEMP_ADD[2][6] = {
 151	{0xC0,			/* TEMP 2 in DataSheet */
 152	 0xC1,			/* TEMP 2(0.5 deg) in DataSheet */
 153	 0xC5,			/* TEMP 2 Over High part in DataSheet */
 154	 0xC6,			/* TEMP 2 Over Low part in DataSheet */
 155	 0xC3,			/* TEMP 2 Thyst High part in DataSheet */
 156	 0xC4},			/* TEMP 2 Thyst Low part in DataSheet */
 157	{0xC8,			/* TEMP 3 in DataSheet */
 158	 0xC9,			/* TEMP 3(0.5 deg) in DataSheet */
 159	 0xCD,			/* TEMP 3 Over High part in DataSheet */
 160	 0xCE,			/* TEMP 3 Over Low part in DataSheet */
 161	 0xCB,			/* TEMP 3 Thyst High part in DataSheet */
 162	 0xCC}			/* TEMP 3 Thyst Low part in DataSheet */
 163};
 164
 165#define W83791D_REG_BEEP_CONFIG		0x4D
 166
 167static const u8 W83791D_REG_BEEP_CTRL[3] = {
 168	0x56,			/* BEEP Control Register 1 */
 169	0x57,			/* BEEP Control Register 2 */
 170	0xA3,			/* BEEP Control Register 3 */
 171};
 172
 173#define W83791D_REG_GPIO		0x15
 174#define W83791D_REG_CONFIG		0x40
 175#define W83791D_REG_VID_FANDIV		0x47
 176#define W83791D_REG_DID_VID4		0x49
 177#define W83791D_REG_WCHIPID		0x58
 178#define W83791D_REG_CHIPMAN		0x4F
 179#define W83791D_REG_PIN			0x4B
 180#define W83791D_REG_I2C_SUBADDR		0x4A
 181
 182#define W83791D_REG_ALARM1 0xA9	/* realtime status register1 */
 183#define W83791D_REG_ALARM2 0xAA	/* realtime status register2 */
 184#define W83791D_REG_ALARM3 0xAB	/* realtime status register3 */
 185
 186#define W83791D_REG_VBAT		0x5D
 187#define W83791D_REG_I2C_ADDR		0x48
 188
 189/*
 190 * The SMBus locks itself. The Winbond W83791D has a bank select register
 191 * (index 0x4e), but the driver only accesses registers in bank 0. Since
 192 * we don't switch banks, we don't need any special code to handle
 193 * locking access between bank switches
 194 */
 195static inline int w83791d_read(struct i2c_client *client, u8 reg)
 196{
 197	return i2c_smbus_read_byte_data(client, reg);
 198}
 199
 200static inline int w83791d_write(struct i2c_client *client, u8 reg, u8 value)
 201{
 202	return i2c_smbus_write_byte_data(client, reg, value);
 203}
 204
 205/*
 206 * The analog voltage inputs have 16mV LSB. Since the sysfs output is
 207 * in mV as would be measured on the chip input pin, need to just
 208 * multiply/divide by 16 to translate from/to register values.
 209 */
 210#define IN_TO_REG(val)		(clamp_val((((val) + 8) / 16), 0, 255))
 211#define IN_FROM_REG(val)	((val) * 16)
 212
 213static u8 fan_to_reg(long rpm, int div)
 214{
 215	if (rpm == 0)
 216		return 255;
 217	rpm = clamp_val(rpm, 1, 1000000);
 218	return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
 219}
 220
 221#define FAN_FROM_REG(val, div)	((val) == 0 ? -1 : \
 222				((val) == 255 ? 0 : \
 223					1350000 / ((val) * (div))))
 224
 225/* for temp1 which is 8-bit resolution, LSB = 1 degree Celsius */
 226#define TEMP1_FROM_REG(val)	((val) * 1000)
 227#define TEMP1_TO_REG(val)	((val) <= -128000 ? -128 : \
 228				 (val) >= 127000 ? 127 : \
 229				 (val) < 0 ? ((val) - 500) / 1000 : \
 230				 ((val) + 500) / 1000)
 231
 232/*
 233 * for temp2 and temp3 which are 9-bit resolution, LSB = 0.5 degree Celsius
 234 * Assumes the top 8 bits are the integral amount and the bottom 8 bits
 235 * are the fractional amount. Since we only have 0.5 degree resolution,
 236 * the bottom 7 bits will always be zero
 237 */
 238#define TEMP23_FROM_REG(val)	((val) / 128 * 500)
 239#define TEMP23_TO_REG(val)	(DIV_ROUND_CLOSEST(clamp_val((val), -128000, \
 240						   127500), 500) * 128)
 241
 242/* for thermal cruise target temp, 7-bits, LSB = 1 degree Celsius */
 243#define TARGET_TEMP_TO_REG(val)	DIV_ROUND_CLOSEST(clamp_val((val), 0, 127000), \
 244						  1000)
 245
 246/* for thermal cruise temp tolerance, 4-bits, LSB = 1 degree Celsius */
 247#define TOL_TEMP_TO_REG(val)	DIV_ROUND_CLOSEST(clamp_val((val), 0, 15000), \
 248						  1000)
 249
 250#define BEEP_MASK_TO_REG(val)		((val) & 0xffffff)
 251#define BEEP_MASK_FROM_REG(val)		((val) & 0xffffff)
 252
 253#define DIV_FROM_REG(val)		(1 << (val))
 254
 255static u8 div_to_reg(int nr, long val)
 256{
 257	int i;
 258
 259	/* fan divisors max out at 128 */
 260	val = clamp_val(val, 1, 128) >> 1;
 261	for (i = 0; i < 7; i++) {
 262		if (val == 0)
 263			break;
 264		val >>= 1;
 265	}
 266	return (u8) i;
 267}
 268
 269struct w83791d_data {
 270	struct device *hwmon_dev;
 271	struct mutex update_lock;
 272
 273	char valid;			/* !=0 if following fields are valid */
 274	unsigned long last_updated;	/* In jiffies */
 275
 276	/* array of 2 pointers to subclients */
 277	struct i2c_client *lm75[2];
 278
 279	/* volts */
 280	u8 in[NUMBER_OF_VIN];		/* Register value */
 281	u8 in_max[NUMBER_OF_VIN];	/* Register value */
 282	u8 in_min[NUMBER_OF_VIN];	/* Register value */
 283
 284	/* fans */
 285	u8 fan[NUMBER_OF_FANIN];	/* Register value */
 286	u8 fan_min[NUMBER_OF_FANIN];	/* Register value */
 287	u8 fan_div[NUMBER_OF_FANIN];	/* Register encoding, shifted right */
 288
 289	/* Temperature sensors */
 290
 291	s8 temp1[3];		/* current, over, thyst */
 292	s16 temp_add[2][3];	/* fixed point value. Top 8 bits are the
 293				 * integral part, bottom 8 bits are the
 294				 * fractional part. We only use the top
 295				 * 9 bits as the resolution is only
 296				 * to the 0.5 degree C...
 297				 * two sensors with three values
 298				 * (cur, over, hyst)
 299				 */
 300
 301	/* PWMs */
 302	u8 pwm[5];		/* pwm duty cycle */
 303	u8 pwm_enable[3];	/* pwm enable status for fan 1-3
 304				 * (fan 4-5 only support manual mode)
 305				 */
 306
 307	u8 temp_target[3];	/* pwm 1-3 target temperature */
 308	u8 temp_tolerance[3];	/* pwm 1-3 temperature tolerance */
 309
 310	/* Misc */
 311	u32 alarms;		/* realtime status register encoding,combined */
 312	u8 beep_enable;		/* Global beep enable */
 313	u32 beep_mask;		/* Mask off specific beeps */
 314	u8 vid;			/* Register encoding, combined */
 315	u8 vrm;			/* hwmon-vid */
 316};
 317
 318static int w83791d_probe(struct i2c_client *client,
 319			 const struct i2c_device_id *id);
 320static int w83791d_detect(struct i2c_client *client,
 321			  struct i2c_board_info *info);
 322static int w83791d_remove(struct i2c_client *client);
 323
 324static int w83791d_read(struct i2c_client *client, u8 reg);
 325static int w83791d_write(struct i2c_client *client, u8 reg, u8 value);
 326static struct w83791d_data *w83791d_update_device(struct device *dev);
 327
 328#ifdef DEBUG
 329static void w83791d_print_debug(struct w83791d_data *data, struct device *dev);
 330#endif
 331
 332static void w83791d_init_client(struct i2c_client *client);
 333
 334static const struct i2c_device_id w83791d_id[] = {
 335	{ "w83791d", 0 },
 336	{ }
 337};
 338MODULE_DEVICE_TABLE(i2c, w83791d_id);
 339
 340static struct i2c_driver w83791d_driver = {
 341	.class		= I2C_CLASS_HWMON,
 342	.driver = {
 343		.name = "w83791d",
 344	},
 345	.probe		= w83791d_probe,
 346	.remove		= w83791d_remove,
 347	.id_table	= w83791d_id,
 348	.detect		= w83791d_detect,
 349	.address_list	= normal_i2c,
 350};
 351
 352/* following are the sysfs callback functions */
 353#define show_in_reg(reg) \
 354static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
 355			char *buf) \
 356{ \
 357	struct sensor_device_attribute *sensor_attr = \
 358						to_sensor_dev_attr(attr); \
 359	struct w83791d_data *data = w83791d_update_device(dev); \
 360	int nr = sensor_attr->index; \
 361	return sprintf(buf, "%d\n", IN_FROM_REG(data->reg[nr])); \
 362}
 363
 364show_in_reg(in);
 365show_in_reg(in_min);
 366show_in_reg(in_max);
 367
 368#define store_in_reg(REG, reg) \
 369static ssize_t store_in_##reg(struct device *dev, \
 370				struct device_attribute *attr, \
 371				const char *buf, size_t count) \
 372{ \
 373	struct sensor_device_attribute *sensor_attr = \
 374						to_sensor_dev_attr(attr); \
 375	struct i2c_client *client = to_i2c_client(dev); \
 376	struct w83791d_data *data = i2c_get_clientdata(client); \
 377	int nr = sensor_attr->index; \
 378	unsigned long val; \
 379	int err = kstrtoul(buf, 10, &val); \
 380	if (err) \
 381		return err; \
 382	mutex_lock(&data->update_lock); \
 383	data->in_##reg[nr] = IN_TO_REG(val); \
 384	w83791d_write(client, W83791D_REG_IN_##REG[nr], data->in_##reg[nr]); \
 385	mutex_unlock(&data->update_lock); \
 386	 \
 387	return count; \
 388}
 389store_in_reg(MIN, min);
 390store_in_reg(MAX, max);
 391
 392static struct sensor_device_attribute sda_in_input[] = {
 393	SENSOR_ATTR(in0_input, S_IRUGO, show_in, NULL, 0),
 394	SENSOR_ATTR(in1_input, S_IRUGO, show_in, NULL, 1),
 395	SENSOR_ATTR(in2_input, S_IRUGO, show_in, NULL, 2),
 396	SENSOR_ATTR(in3_input, S_IRUGO, show_in, NULL, 3),
 397	SENSOR_ATTR(in4_input, S_IRUGO, show_in, NULL, 4),
 398	SENSOR_ATTR(in5_input, S_IRUGO, show_in, NULL, 5),
 399	SENSOR_ATTR(in6_input, S_IRUGO, show_in, NULL, 6),
 400	SENSOR_ATTR(in7_input, S_IRUGO, show_in, NULL, 7),
 401	SENSOR_ATTR(in8_input, S_IRUGO, show_in, NULL, 8),
 402	SENSOR_ATTR(in9_input, S_IRUGO, show_in, NULL, 9),
 403};
 404
 405static struct sensor_device_attribute sda_in_min[] = {
 406	SENSOR_ATTR(in0_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 0),
 407	SENSOR_ATTR(in1_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 1),
 408	SENSOR_ATTR(in2_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 2),
 409	SENSOR_ATTR(in3_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 3),
 410	SENSOR_ATTR(in4_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 4),
 411	SENSOR_ATTR(in5_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 5),
 412	SENSOR_ATTR(in6_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 6),
 413	SENSOR_ATTR(in7_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 7),
 414	SENSOR_ATTR(in8_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 8),
 415	SENSOR_ATTR(in9_min, S_IWUSR | S_IRUGO, show_in_min, store_in_min, 9),
 416};
 417
 418static struct sensor_device_attribute sda_in_max[] = {
 419	SENSOR_ATTR(in0_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 0),
 420	SENSOR_ATTR(in1_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 1),
 421	SENSOR_ATTR(in2_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 2),
 422	SENSOR_ATTR(in3_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 3),
 423	SENSOR_ATTR(in4_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 4),
 424	SENSOR_ATTR(in5_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 5),
 425	SENSOR_ATTR(in6_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 6),
 426	SENSOR_ATTR(in7_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 7),
 427	SENSOR_ATTR(in8_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 8),
 428	SENSOR_ATTR(in9_max, S_IWUSR | S_IRUGO, show_in_max, store_in_max, 9),
 429};
 430
 431
 432static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
 433			char *buf)
 434{
 435	struct sensor_device_attribute *sensor_attr =
 436						to_sensor_dev_attr(attr);
 437	struct w83791d_data *data = w83791d_update_device(dev);
 438	int bitnr = sensor_attr->index;
 439
 440	return sprintf(buf, "%d\n", (data->beep_mask >> bitnr) & 1);
 441}
 442
 443static ssize_t store_beep(struct device *dev, struct device_attribute *attr,
 444			const char *buf, size_t count)
 445{
 446	struct sensor_device_attribute *sensor_attr =
 447						to_sensor_dev_attr(attr);
 448	struct i2c_client *client = to_i2c_client(dev);
 449	struct w83791d_data *data = i2c_get_clientdata(client);
 450	int bitnr = sensor_attr->index;
 451	int bytenr = bitnr / 8;
 452	unsigned long val;
 453	int err;
 454
 455	err = kstrtoul(buf, 10, &val);
 456	if (err)
 457		return err;
 458
 459	val = val ? 1 : 0;
 460
 461	mutex_lock(&data->update_lock);
 462
 463	data->beep_mask &= ~(0xff << (bytenr * 8));
 464	data->beep_mask |= w83791d_read(client, W83791D_REG_BEEP_CTRL[bytenr])
 465		<< (bytenr * 8);
 466
 467	data->beep_mask &= ~(1 << bitnr);
 468	data->beep_mask |= val << bitnr;
 469
 470	w83791d_write(client, W83791D_REG_BEEP_CTRL[bytenr],
 471		(data->beep_mask >> (bytenr * 8)) & 0xff);
 472
 473	mutex_unlock(&data->update_lock);
 474
 475	return count;
 476}
 477
 478static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
 479			char *buf)
 480{
 481	struct sensor_device_attribute *sensor_attr =
 482						to_sensor_dev_attr(attr);
 483	struct w83791d_data *data = w83791d_update_device(dev);
 484	int bitnr = sensor_attr->index;
 485
 486	return sprintf(buf, "%d\n", (data->alarms >> bitnr) & 1);
 487}
 488
 489/*
 490 * Note: The bitmask for the beep enable/disable is different than
 491 * the bitmask for the alarm.
 492 */
 493static struct sensor_device_attribute sda_in_beep[] = {
 494	SENSOR_ATTR(in0_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 0),
 495	SENSOR_ATTR(in1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 13),
 496	SENSOR_ATTR(in2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 2),
 497	SENSOR_ATTR(in3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 3),
 498	SENSOR_ATTR(in4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 8),
 499	SENSOR_ATTR(in5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 9),
 500	SENSOR_ATTR(in6_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 10),
 501	SENSOR_ATTR(in7_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 16),
 502	SENSOR_ATTR(in8_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 17),
 503	SENSOR_ATTR(in9_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 14),
 504};
 505
 506static struct sensor_device_attribute sda_in_alarm[] = {
 507	SENSOR_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0),
 508	SENSOR_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1),
 509	SENSOR_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2),
 510	SENSOR_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3),
 511	SENSOR_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8),
 512	SENSOR_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 9),
 513	SENSOR_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 10),
 514	SENSOR_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19),
 515	SENSOR_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20),
 516	SENSOR_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 14),
 517};
 518
 519#define show_fan_reg(reg) \
 520static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
 521				char *buf) \
 522{ \
 523	struct sensor_device_attribute *sensor_attr = \
 524						to_sensor_dev_attr(attr); \
 525	struct w83791d_data *data = w83791d_update_device(dev); \
 526	int nr = sensor_attr->index; \
 527	return sprintf(buf, "%d\n", \
 528		FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
 529}
 530
 531show_fan_reg(fan);
 532show_fan_reg(fan_min);
 533
 534static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr,
 535				const char *buf, size_t count)
 536{
 537	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 538	struct i2c_client *client = to_i2c_client(dev);
 539	struct w83791d_data *data = i2c_get_clientdata(client);
 540	int nr = sensor_attr->index;
 541	unsigned long val;
 542	int err;
 543
 544	err = kstrtoul(buf, 10, &val);
 545	if (err)
 546		return err;
 547
 548	mutex_lock(&data->update_lock);
 549	data->fan_min[nr] = fan_to_reg(val, DIV_FROM_REG(data->fan_div[nr]));
 550	w83791d_write(client, W83791D_REG_FAN_MIN[nr], data->fan_min[nr]);
 551	mutex_unlock(&data->update_lock);
 552
 553	return count;
 554}
 555
 556static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
 557				char *buf)
 558{
 559	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 560	int nr = sensor_attr->index;
 561	struct w83791d_data *data = w83791d_update_device(dev);
 562	return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr]));
 563}
 564
 565/*
 566 * Note: we save and restore the fan minimum here, because its value is
 567 * determined in part by the fan divisor.  This follows the principle of
 568 * least surprise; the user doesn't expect the fan minimum to change just
 569 * because the divisor changed.
 570 */
 571static ssize_t store_fan_div(struct device *dev, struct device_attribute *attr,
 572				const char *buf, size_t count)
 573{
 574	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 575	struct i2c_client *client = to_i2c_client(dev);
 576	struct w83791d_data *data = i2c_get_clientdata(client);
 577	int nr = sensor_attr->index;
 578	unsigned long min;
 579	u8 tmp_fan_div;
 580	u8 fan_div_reg;
 581	u8 vbat_reg;
 582	int indx = 0;
 583	u8 keep_mask = 0;
 584	u8 new_shift = 0;
 585	unsigned long val;
 586	int err;
 587
 588	err = kstrtoul(buf, 10, &val);
 589	if (err)
 590		return err;
 591
 592	/* Save fan_min */
 593	min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));
 594
 595	mutex_lock(&data->update_lock);
 596	data->fan_div[nr] = div_to_reg(nr, val);
 597
 598	switch (nr) {
 599	case 0:
 600		indx = 0;
 601		keep_mask = 0xcf;
 602		new_shift = 4;
 603		break;
 604	case 1:
 605		indx = 0;
 606		keep_mask = 0x3f;
 607		new_shift = 6;
 608		break;
 609	case 2:
 610		indx = 1;
 611		keep_mask = 0x3f;
 612		new_shift = 6;
 613		break;
 614	case 3:
 615		indx = 2;
 616		keep_mask = 0xf8;
 617		new_shift = 0;
 618		break;
 619	case 4:
 620		indx = 2;
 621		keep_mask = 0x8f;
 622		new_shift = 4;
 623		break;
 624#ifdef DEBUG
 625	default:
 626		dev_warn(dev, "store_fan_div: Unexpected nr seen: %d\n", nr);
 627		count = -EINVAL;
 628		goto err_exit;
 629#endif
 630	}
 631
 632	fan_div_reg = w83791d_read(client, W83791D_REG_FAN_DIV[indx])
 633			& keep_mask;
 634	tmp_fan_div = (data->fan_div[nr] << new_shift) & ~keep_mask;
 635
 636	w83791d_write(client, W83791D_REG_FAN_DIV[indx],
 637				fan_div_reg | tmp_fan_div);
 638
 639	/* Bit 2 of fans 0-2 is stored in the vbat register (bits 5-7) */
 640	if (nr < 3) {
 641		keep_mask = ~(1 << (nr + 5));
 642		vbat_reg = w83791d_read(client, W83791D_REG_VBAT)
 643				& keep_mask;
 644		tmp_fan_div = (data->fan_div[nr] << (3 + nr)) & ~keep_mask;
 645		w83791d_write(client, W83791D_REG_VBAT,
 646				vbat_reg | tmp_fan_div);
 647	}
 648
 649	/* Restore fan_min */
 650	data->fan_min[nr] = fan_to_reg(min, DIV_FROM_REG(data->fan_div[nr]));
 651	w83791d_write(client, W83791D_REG_FAN_MIN[nr], data->fan_min[nr]);
 652
 653#ifdef DEBUG
 654err_exit:
 655#endif
 656	mutex_unlock(&data->update_lock);
 657
 658	return count;
 659}
 660
 661static struct sensor_device_attribute sda_fan_input[] = {
 662	SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0),
 663	SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1),
 664	SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2),
 665	SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3),
 666	SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4),
 667};
 668
 669static struct sensor_device_attribute sda_fan_min[] = {
 670	SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO,
 671			show_fan_min, store_fan_min, 0),
 672	SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO,
 673			show_fan_min, store_fan_min, 1),
 674	SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO,
 675			show_fan_min, store_fan_min, 2),
 676	SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO,
 677			show_fan_min, store_fan_min, 3),
 678	SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO,
 679			show_fan_min, store_fan_min, 4),
 680};
 681
 682static struct sensor_device_attribute sda_fan_div[] = {
 683	SENSOR_ATTR(fan1_div, S_IWUSR | S_IRUGO,
 684			show_fan_div, store_fan_div, 0),
 685	SENSOR_ATTR(fan2_div, S_IWUSR | S_IRUGO,
 686			show_fan_div, store_fan_div, 1),
 687	SENSOR_ATTR(fan3_div, S_IWUSR | S_IRUGO,
 688			show_fan_div, store_fan_div, 2),
 689	SENSOR_ATTR(fan4_div, S_IWUSR | S_IRUGO,
 690			show_fan_div, store_fan_div, 3),
 691	SENSOR_ATTR(fan5_div, S_IWUSR | S_IRUGO,
 692			show_fan_div, store_fan_div, 4),
 693};
 694
 695static struct sensor_device_attribute sda_fan_beep[] = {
 696	SENSOR_ATTR(fan1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 6),
 697	SENSOR_ATTR(fan2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 7),
 698	SENSOR_ATTR(fan3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 11),
 699	SENSOR_ATTR(fan4_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 21),
 700	SENSOR_ATTR(fan5_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 22),
 701};
 702
 703static struct sensor_device_attribute sda_fan_alarm[] = {
 704	SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6),
 705	SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7),
 706	SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 11),
 707	SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21),
 708	SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22),
 709};
 710
 711/* read/write PWMs */
 712static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
 713				char *buf)
 714{
 715	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 716	int nr = sensor_attr->index;
 717	struct w83791d_data *data = w83791d_update_device(dev);
 718	return sprintf(buf, "%u\n", data->pwm[nr]);
 719}
 720
 721static ssize_t store_pwm(struct device *dev, struct device_attribute *attr,
 722		const char *buf, size_t count)
 723{
 724	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 725	struct i2c_client *client = to_i2c_client(dev);
 726	struct w83791d_data *data = i2c_get_clientdata(client);
 727	int nr = sensor_attr->index;
 728	unsigned long val;
 729
 730	if (kstrtoul(buf, 10, &val))
 731		return -EINVAL;
 732
 733	mutex_lock(&data->update_lock);
 734	data->pwm[nr] = clamp_val(val, 0, 255);
 735	w83791d_write(client, W83791D_REG_PWM[nr], data->pwm[nr]);
 736	mutex_unlock(&data->update_lock);
 737	return count;
 738}
 739
 740static struct sensor_device_attribute sda_pwm[] = {
 741	SENSOR_ATTR(pwm1, S_IWUSR | S_IRUGO,
 742			show_pwm, store_pwm, 0),
 743	SENSOR_ATTR(pwm2, S_IWUSR | S_IRUGO,
 744			show_pwm, store_pwm, 1),
 745	SENSOR_ATTR(pwm3, S_IWUSR | S_IRUGO,
 746			show_pwm, store_pwm, 2),
 747	SENSOR_ATTR(pwm4, S_IWUSR | S_IRUGO,
 748			show_pwm, store_pwm, 3),
 749	SENSOR_ATTR(pwm5, S_IWUSR | S_IRUGO,
 750			show_pwm, store_pwm, 4),
 751};
 752
 753static ssize_t show_pwmenable(struct device *dev, struct device_attribute *attr,
 754				char *buf)
 755{
 756	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 757	int nr = sensor_attr->index;
 758	struct w83791d_data *data = w83791d_update_device(dev);
 759	return sprintf(buf, "%u\n", data->pwm_enable[nr] + 1);
 760}
 761
 762static ssize_t store_pwmenable(struct device *dev,
 763		struct device_attribute *attr, const char *buf, size_t count)
 764{
 765	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 766	struct i2c_client *client = to_i2c_client(dev);
 767	struct w83791d_data *data = i2c_get_clientdata(client);
 768	int nr = sensor_attr->index;
 769	unsigned long val;
 770	u8 reg_cfg_tmp;
 771	u8 reg_idx = 0;
 772	u8 val_shift = 0;
 773	u8 keep_mask = 0;
 774
 775	int ret = kstrtoul(buf, 10, &val);
 776
 777	if (ret || val < 1 || val > 3)
 778		return -EINVAL;
 779
 780	mutex_lock(&data->update_lock);
 781	data->pwm_enable[nr] = val - 1;
 782	switch (nr) {
 783	case 0:
 784		reg_idx = 0;
 785		val_shift = 2;
 786		keep_mask = 0xf3;
 787		break;
 788	case 1:
 789		reg_idx = 0;
 790		val_shift = 4;
 791		keep_mask = 0xcf;
 792		break;
 793	case 2:
 794		reg_idx = 1;
 795		val_shift = 2;
 796		keep_mask = 0xf3;
 797		break;
 798	}
 799
 800	reg_cfg_tmp = w83791d_read(client, W83791D_REG_FAN_CFG[reg_idx]);
 801	reg_cfg_tmp = (reg_cfg_tmp & keep_mask) |
 802					data->pwm_enable[nr] << val_shift;
 803
 804	w83791d_write(client, W83791D_REG_FAN_CFG[reg_idx], reg_cfg_tmp);
 805	mutex_unlock(&data->update_lock);
 806
 807	return count;
 808}
 809static struct sensor_device_attribute sda_pwmenable[] = {
 810	SENSOR_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
 811			show_pwmenable, store_pwmenable, 0),
 812	SENSOR_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
 813			show_pwmenable, store_pwmenable, 1),
 814	SENSOR_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
 815			show_pwmenable, store_pwmenable, 2),
 816};
 817
 818/* For Smart Fan I / Thermal Cruise */
 819static ssize_t show_temp_target(struct device *dev,
 820			struct device_attribute *attr, char *buf)
 821{
 822	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 823	struct w83791d_data *data = w83791d_update_device(dev);
 824	int nr = sensor_attr->index;
 825	return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp_target[nr]));
 826}
 827
 828static ssize_t store_temp_target(struct device *dev,
 829		struct device_attribute *attr, const char *buf, size_t count)
 830{
 831	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 832	struct i2c_client *client = to_i2c_client(dev);
 833	struct w83791d_data *data = i2c_get_clientdata(client);
 834	int nr = sensor_attr->index;
 835	long val;
 836	u8 target_mask;
 837
 838	if (kstrtol(buf, 10, &val))
 839		return -EINVAL;
 840
 841	mutex_lock(&data->update_lock);
 842	data->temp_target[nr] = TARGET_TEMP_TO_REG(val);
 843	target_mask = w83791d_read(client,
 844				W83791D_REG_TEMP_TARGET[nr]) & 0x80;
 845	w83791d_write(client, W83791D_REG_TEMP_TARGET[nr],
 846				data->temp_target[nr] | target_mask);
 847	mutex_unlock(&data->update_lock);
 848	return count;
 849}
 850
 851static struct sensor_device_attribute sda_temp_target[] = {
 852	SENSOR_ATTR(temp1_target, S_IWUSR | S_IRUGO,
 853			show_temp_target, store_temp_target, 0),
 854	SENSOR_ATTR(temp2_target, S_IWUSR | S_IRUGO,
 855			show_temp_target, store_temp_target, 1),
 856	SENSOR_ATTR(temp3_target, S_IWUSR | S_IRUGO,
 857			show_temp_target, store_temp_target, 2),
 858};
 859
 860static ssize_t show_temp_tolerance(struct device *dev,
 861			struct device_attribute *attr, char *buf)
 862{
 863	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 864	struct w83791d_data *data = w83791d_update_device(dev);
 865	int nr = sensor_attr->index;
 866	return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp_tolerance[nr]));
 867}
 868
 869static ssize_t store_temp_tolerance(struct device *dev,
 870		struct device_attribute *attr, const char *buf, size_t count)
 871{
 872	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 873	struct i2c_client *client = to_i2c_client(dev);
 874	struct w83791d_data *data = i2c_get_clientdata(client);
 875	int nr = sensor_attr->index;
 876	unsigned long val;
 877	u8 target_mask;
 878	u8 reg_idx = 0;
 879	u8 val_shift = 0;
 880	u8 keep_mask = 0;
 881
 882	if (kstrtoul(buf, 10, &val))
 883		return -EINVAL;
 884
 885	switch (nr) {
 886	case 0:
 887		reg_idx = 0;
 888		val_shift = 0;
 889		keep_mask = 0xf0;
 890		break;
 891	case 1:
 892		reg_idx = 0;
 893		val_shift = 4;
 894		keep_mask = 0x0f;
 895		break;
 896	case 2:
 897		reg_idx = 1;
 898		val_shift = 0;
 899		keep_mask = 0xf0;
 900		break;
 901	}
 902
 903	mutex_lock(&data->update_lock);
 904	data->temp_tolerance[nr] = TOL_TEMP_TO_REG(val);
 905	target_mask = w83791d_read(client,
 906			W83791D_REG_TEMP_TOL[reg_idx]) & keep_mask;
 907	w83791d_write(client, W83791D_REG_TEMP_TOL[reg_idx],
 908			(data->temp_tolerance[nr] << val_shift) | target_mask);
 909	mutex_unlock(&data->update_lock);
 910	return count;
 911}
 912
 913static struct sensor_device_attribute sda_temp_tolerance[] = {
 914	SENSOR_ATTR(temp1_tolerance, S_IWUSR | S_IRUGO,
 915			show_temp_tolerance, store_temp_tolerance, 0),
 916	SENSOR_ATTR(temp2_tolerance, S_IWUSR | S_IRUGO,
 917			show_temp_tolerance, store_temp_tolerance, 1),
 918	SENSOR_ATTR(temp3_tolerance, S_IWUSR | S_IRUGO,
 919			show_temp_tolerance, store_temp_tolerance, 2),
 920};
 921
 922/* read/write the temperature1, includes measured value and limits */
 923static ssize_t show_temp1(struct device *dev, struct device_attribute *devattr,
 924				char *buf)
 925{
 926	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 927	struct w83791d_data *data = w83791d_update_device(dev);
 928	return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[attr->index]));
 929}
 930
 931static ssize_t store_temp1(struct device *dev, struct device_attribute *devattr,
 932				const char *buf, size_t count)
 933{
 934	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 935	struct i2c_client *client = to_i2c_client(dev);
 936	struct w83791d_data *data = i2c_get_clientdata(client);
 937	int nr = attr->index;
 938	long val;
 939	int err;
 940
 941	err = kstrtol(buf, 10, &val);
 942	if (err)
 943		return err;
 944
 945	mutex_lock(&data->update_lock);
 946	data->temp1[nr] = TEMP1_TO_REG(val);
 947	w83791d_write(client, W83791D_REG_TEMP1[nr], data->temp1[nr]);
 948	mutex_unlock(&data->update_lock);
 949	return count;
 950}
 951
 952/* read/write temperature2-3, includes measured value and limits */
 953static ssize_t show_temp23(struct device *dev, struct device_attribute *devattr,
 954				char *buf)
 955{
 956	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
 957	struct w83791d_data *data = w83791d_update_device(dev);
 958	int nr = attr->nr;
 959	int index = attr->index;
 960	return sprintf(buf, "%d\n", TEMP23_FROM_REG(data->temp_add[nr][index]));
 961}
 962
 963static ssize_t store_temp23(struct device *dev,
 964				struct device_attribute *devattr,
 965				const char *buf, size_t count)
 966{
 967	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
 968	struct i2c_client *client = to_i2c_client(dev);
 969	struct w83791d_data *data = i2c_get_clientdata(client);
 970	long val;
 971	int err;
 972	int nr = attr->nr;
 973	int index = attr->index;
 974
 975	err = kstrtol(buf, 10, &val);
 976	if (err)
 977		return err;
 978
 979	mutex_lock(&data->update_lock);
 980	data->temp_add[nr][index] = TEMP23_TO_REG(val);
 981	w83791d_write(client, W83791D_REG_TEMP_ADD[nr][index * 2],
 982				data->temp_add[nr][index] >> 8);
 983	w83791d_write(client, W83791D_REG_TEMP_ADD[nr][index * 2 + 1],
 984				data->temp_add[nr][index] & 0x80);
 985	mutex_unlock(&data->update_lock);
 986
 987	return count;
 988}
 989
 990static struct sensor_device_attribute_2 sda_temp_input[] = {
 991	SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0),
 992	SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0),
 993	SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0),
 994};
 995
 996static struct sensor_device_attribute_2 sda_temp_max[] = {
 997	SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
 998			show_temp1, store_temp1, 0, 1),
 999	SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR,
1000			show_temp23, store_temp23, 0, 1),
1001	SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR,
1002			show_temp23, store_temp23, 1, 1),
1003};
1004
1005static struct sensor_device_attribute_2 sda_temp_max_hyst[] = {
1006	SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1007			show_temp1, store_temp1, 0, 2),
1008	SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1009			show_temp23, store_temp23, 0, 2),
1010	SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1011			show_temp23, store_temp23, 1, 2),
1012};
1013
1014/*
1015 * Note: The bitmask for the beep enable/disable is different than
1016 * the bitmask for the alarm.
1017 */
1018static struct sensor_device_attribute sda_temp_beep[] = {
1019	SENSOR_ATTR(temp1_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 4),
1020	SENSOR_ATTR(temp2_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 5),
1021	SENSOR_ATTR(temp3_beep, S_IWUSR | S_IRUGO, show_beep, store_beep, 1),
1022};
1023
1024static struct sensor_device_attribute sda_temp_alarm[] = {
1025	SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4),
1026	SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5),
1027	SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
1028};
1029
1030/* get realtime status of all sensors items: voltage, temp, fan */
1031static ssize_t alarms_show(struct device *dev, struct device_attribute *attr,
1032			   char *buf)
1033{
1034	struct w83791d_data *data = w83791d_update_device(dev);
1035	return sprintf(buf, "%u\n", data->alarms);
1036}
1037
1038static DEVICE_ATTR_RO(alarms);
1039
1040/* Beep control */
1041
1042#define GLOBAL_BEEP_ENABLE_SHIFT	15
1043#define GLOBAL_BEEP_ENABLE_MASK		(1 << GLOBAL_BEEP_ENABLE_SHIFT)
1044
1045static ssize_t show_beep_enable(struct device *dev,
1046				struct device_attribute *attr, char *buf)
1047{
1048	struct w83791d_data *data = w83791d_update_device(dev);
1049	return sprintf(buf, "%d\n", data->beep_enable);
1050}
1051
1052static ssize_t show_beep_mask(struct device *dev,
1053				struct device_attribute *attr, char *buf)
1054{
1055	struct w83791d_data *data = w83791d_update_device(dev);
1056	return sprintf(buf, "%d\n", BEEP_MASK_FROM_REG(data->beep_mask));
1057}
1058
1059
1060static ssize_t store_beep_mask(struct device *dev,
1061				struct device_attribute *attr,
1062				const char *buf, size_t count)
1063{
1064	struct i2c_client *client = to_i2c_client(dev);
1065	struct w83791d_data *data = i2c_get_clientdata(client);
1066	int i;
1067	long val;
1068	int err;
1069
1070	err = kstrtol(buf, 10, &val);
1071	if (err)
1072		return err;
1073
1074	mutex_lock(&data->update_lock);
1075
1076	/*
1077	 * The beep_enable state overrides any enabling request from
1078	 * the masks
1079	 */
1080	data->beep_mask = BEEP_MASK_TO_REG(val) & ~GLOBAL_BEEP_ENABLE_MASK;
1081	data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT);
1082
1083	val = data->beep_mask;
1084
1085	for (i = 0; i < 3; i++) {
1086		w83791d_write(client, W83791D_REG_BEEP_CTRL[i], (val & 0xff));
1087		val >>= 8;
1088	}
1089
1090	mutex_unlock(&data->update_lock);
1091
1092	return count;
1093}
1094
1095static ssize_t store_beep_enable(struct device *dev,
1096				struct device_attribute *attr,
1097				const char *buf, size_t count)
1098{
1099	struct i2c_client *client = to_i2c_client(dev);
1100	struct w83791d_data *data = i2c_get_clientdata(client);
1101	long val;
1102	int err;
1103
1104	err = kstrtol(buf, 10, &val);
1105	if (err)
1106		return err;
1107
1108	mutex_lock(&data->update_lock);
1109
1110	data->beep_enable = val ? 1 : 0;
1111
1112	/* Keep the full mask value in sync with the current enable */
1113	data->beep_mask &= ~GLOBAL_BEEP_ENABLE_MASK;
1114	data->beep_mask |= (data->beep_enable << GLOBAL_BEEP_ENABLE_SHIFT);
1115
1116	/*
1117	 * The global control is in the second beep control register
1118	 * so only need to update that register
1119	 */
1120	val = (data->beep_mask >> 8) & 0xff;
1121
1122	w83791d_write(client, W83791D_REG_BEEP_CTRL[1], val);
1123
1124	mutex_unlock(&data->update_lock);
1125
1126	return count;
1127}
1128
1129static struct sensor_device_attribute sda_beep_ctrl[] = {
1130	SENSOR_ATTR(beep_enable, S_IRUGO | S_IWUSR,
1131			show_beep_enable, store_beep_enable, 0),
1132	SENSOR_ATTR(beep_mask, S_IRUGO | S_IWUSR,
1133			show_beep_mask, store_beep_mask, 1)
1134};
1135
1136/* cpu voltage regulation information */
1137static ssize_t cpu0_vid_show(struct device *dev,
1138			     struct device_attribute *attr, char *buf)
1139{
1140	struct w83791d_data *data = w83791d_update_device(dev);
1141	return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
1142}
1143
1144static DEVICE_ATTR_RO(cpu0_vid);
1145
1146static ssize_t vrm_show(struct device *dev, struct device_attribute *attr,
1147			char *buf)
1148{
1149	struct w83791d_data *data = dev_get_drvdata(dev);
1150	return sprintf(buf, "%d\n", data->vrm);
1151}
1152
1153static ssize_t vrm_store(struct device *dev, struct device_attribute *attr,
1154			 const char *buf, size_t count)
1155{
1156	struct w83791d_data *data = dev_get_drvdata(dev);
1157	unsigned long val;
1158	int err;
1159
1160	/*
1161	 * No lock needed as vrm is internal to the driver
1162	 * (not read from a chip register) and so is not
1163	 * updated in w83791d_update_device()
1164	 */
1165
1166	err = kstrtoul(buf, 10, &val);
1167	if (err)
1168		return err;
1169
1170	if (val > 255)
1171		return -EINVAL;
1172
1173	data->vrm = val;
1174	return count;
1175}
1176
1177static DEVICE_ATTR_RW(vrm);
1178
1179#define IN_UNIT_ATTRS(X) \
1180	&sda_in_input[X].dev_attr.attr,	\
1181	&sda_in_min[X].dev_attr.attr,	\
1182	&sda_in_max[X].dev_attr.attr,	\
1183	&sda_in_beep[X].dev_attr.attr,	\
1184	&sda_in_alarm[X].dev_attr.attr
1185
1186#define FAN_UNIT_ATTRS(X) \
1187	&sda_fan_input[X].dev_attr.attr,	\
1188	&sda_fan_min[X].dev_attr.attr,		\
1189	&sda_fan_div[X].dev_attr.attr,		\
1190	&sda_fan_beep[X].dev_attr.attr,		\
1191	&sda_fan_alarm[X].dev_attr.attr
1192
1193#define TEMP_UNIT_ATTRS(X) \
1194	&sda_temp_input[X].dev_attr.attr,	\
1195	&sda_temp_max[X].dev_attr.attr,		\
1196	&sda_temp_max_hyst[X].dev_attr.attr,	\
1197	&sda_temp_beep[X].dev_attr.attr,	\
1198	&sda_temp_alarm[X].dev_attr.attr
1199
1200static struct attribute *w83791d_attributes[] = {
1201	IN_UNIT_ATTRS(0),
1202	IN_UNIT_ATTRS(1),
1203	IN_UNIT_ATTRS(2),
1204	IN_UNIT_ATTRS(3),
1205	IN_UNIT_ATTRS(4),
1206	IN_UNIT_ATTRS(5),
1207	IN_UNIT_ATTRS(6),
1208	IN_UNIT_ATTRS(7),
1209	IN_UNIT_ATTRS(8),
1210	IN_UNIT_ATTRS(9),
1211	FAN_UNIT_ATTRS(0),
1212	FAN_UNIT_ATTRS(1),
1213	FAN_UNIT_ATTRS(2),
1214	TEMP_UNIT_ATTRS(0),
1215	TEMP_UNIT_ATTRS(1),
1216	TEMP_UNIT_ATTRS(2),
1217	&dev_attr_alarms.attr,
1218	&sda_beep_ctrl[0].dev_attr.attr,
1219	&sda_beep_ctrl[1].dev_attr.attr,
1220	&dev_attr_cpu0_vid.attr,
1221	&dev_attr_vrm.attr,
1222	&sda_pwm[0].dev_attr.attr,
1223	&sda_pwm[1].dev_attr.attr,
1224	&sda_pwm[2].dev_attr.attr,
1225	&sda_pwmenable[0].dev_attr.attr,
1226	&sda_pwmenable[1].dev_attr.attr,
1227	&sda_pwmenable[2].dev_attr.attr,
1228	&sda_temp_target[0].dev_attr.attr,
1229	&sda_temp_target[1].dev_attr.attr,
1230	&sda_temp_target[2].dev_attr.attr,
1231	&sda_temp_tolerance[0].dev_attr.attr,
1232	&sda_temp_tolerance[1].dev_attr.attr,
1233	&sda_temp_tolerance[2].dev_attr.attr,
1234	NULL
1235};
1236
1237static const struct attribute_group w83791d_group = {
1238	.attrs = w83791d_attributes,
1239};
1240
1241/*
1242 * Separate group of attributes for fan/pwm 4-5. Their pins can also be
1243 * in use for GPIO in which case their sysfs-interface should not be made
1244 * available
1245 */
1246static struct attribute *w83791d_attributes_fanpwm45[] = {
1247	FAN_UNIT_ATTRS(3),
1248	FAN_UNIT_ATTRS(4),
1249	&sda_pwm[3].dev_attr.attr,
1250	&sda_pwm[4].dev_attr.attr,
1251	NULL
1252};
1253
1254static const struct attribute_group w83791d_group_fanpwm45 = {
1255	.attrs = w83791d_attributes_fanpwm45,
1256};
1257
1258static int w83791d_detect_subclients(struct i2c_client *client)
1259{
1260	struct i2c_adapter *adapter = client->adapter;
1261	struct w83791d_data *data = i2c_get_clientdata(client);
1262	int address = client->addr;
1263	int i, id;
1264	u8 val;
1265
1266	id = i2c_adapter_id(adapter);
1267	if (force_subclients[0] == id && force_subclients[1] == address) {
1268		for (i = 2; i <= 3; i++) {
1269			if (force_subclients[i] < 0x48 ||
1270			    force_subclients[i] > 0x4f) {
1271				dev_err(&client->dev,
1272					"invalid subclient "
1273					"address %d; must be 0x48-0x4f\n",
1274					force_subclients[i]);
1275				return -ENODEV;
1276			}
1277		}
1278		w83791d_write(client, W83791D_REG_I2C_SUBADDR,
1279					(force_subclients[2] & 0x07) |
1280					((force_subclients[3] & 0x07) << 4));
1281	}
1282
1283	val = w83791d_read(client, W83791D_REG_I2C_SUBADDR);
1284	if (!(val & 0x08))
1285		data->lm75[0] = devm_i2c_new_dummy_device(&client->dev, adapter,
1286							  0x48 + (val & 0x7));
1287	if (!(val & 0x80)) {
1288		if (!IS_ERR(data->lm75[0]) &&
1289				((val & 0x7) == ((val >> 4) & 0x7))) {
1290			dev_err(&client->dev,
1291				"duplicate addresses 0x%x, "
1292				"use force_subclient\n",
1293				data->lm75[0]->addr);
1294			return -ENODEV;
1295		}
1296		data->lm75[1] = devm_i2c_new_dummy_device(&client->dev, adapter,
1297							  0x48 + ((val >> 4) & 0x7));
1298	}
1299
 
 
 
 
 
 
1300	return 0;
1301}
1302
1303
1304/* Return 0 if detection is successful, -ENODEV otherwise */
1305static int w83791d_detect(struct i2c_client *client,
1306			  struct i2c_board_info *info)
1307{
1308	struct i2c_adapter *adapter = client->adapter;
1309	int val1, val2;
1310	unsigned short address = client->addr;
1311
1312	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1313		return -ENODEV;
1314
1315	if (w83791d_read(client, W83791D_REG_CONFIG) & 0x80)
1316		return -ENODEV;
1317
1318	val1 = w83791d_read(client, W83791D_REG_BANK);
1319	val2 = w83791d_read(client, W83791D_REG_CHIPMAN);
1320	/* Check for Winbond ID if in bank 0 */
1321	if (!(val1 & 0x07)) {
1322		if ((!(val1 & 0x80) && val2 != 0xa3) ||
1323		    ((val1 & 0x80) && val2 != 0x5c)) {
1324			return -ENODEV;
1325		}
1326	}
1327	/*
1328	 * If Winbond chip, address of chip and W83791D_REG_I2C_ADDR
1329	 * should match
1330	 */
1331	if (w83791d_read(client, W83791D_REG_I2C_ADDR) != address)
1332		return -ENODEV;
1333
1334	/* We want bank 0 and Vendor ID high byte */
1335	val1 = w83791d_read(client, W83791D_REG_BANK) & 0x78;
1336	w83791d_write(client, W83791D_REG_BANK, val1 | 0x80);
1337
1338	/* Verify it is a Winbond w83791d */
1339	val1 = w83791d_read(client, W83791D_REG_WCHIPID);
1340	val2 = w83791d_read(client, W83791D_REG_CHIPMAN);
1341	if (val1 != 0x71 || val2 != 0x5c)
1342		return -ENODEV;
1343
1344	strlcpy(info->type, "w83791d", I2C_NAME_SIZE);
1345
1346	return 0;
1347}
1348
1349static int w83791d_probe(struct i2c_client *client,
1350			 const struct i2c_device_id *id)
1351{
1352	struct w83791d_data *data;
1353	struct device *dev = &client->dev;
1354	int i, err;
1355	u8 has_fanpwm45;
1356
1357#ifdef DEBUG
1358	int val1;
1359	val1 = w83791d_read(client, W83791D_REG_DID_VID4);
1360	dev_dbg(dev, "Device ID version: %d.%d (0x%02x)\n",
1361			(val1 >> 5) & 0x07, (val1 >> 1) & 0x0f, val1);
1362#endif
1363
1364	data = devm_kzalloc(&client->dev, sizeof(struct w83791d_data),
1365			    GFP_KERNEL);
1366	if (!data)
1367		return -ENOMEM;
1368
1369	i2c_set_clientdata(client, data);
1370	mutex_init(&data->update_lock);
1371
1372	err = w83791d_detect_subclients(client);
1373	if (err)
1374		return err;
1375
1376	/* Initialize the chip */
1377	w83791d_init_client(client);
1378
1379	/*
1380	 * If the fan_div is changed, make sure there is a rational
1381	 * fan_min in place
1382	 */
1383	for (i = 0; i < NUMBER_OF_FANIN; i++)
1384		data->fan_min[i] = w83791d_read(client, W83791D_REG_FAN_MIN[i]);
1385
1386	/* Register sysfs hooks */
1387	err = sysfs_create_group(&client->dev.kobj, &w83791d_group);
1388	if (err)
1389		return err;
1390
1391	/* Check if pins of fan/pwm 4-5 are in use as GPIO */
1392	has_fanpwm45 = w83791d_read(client, W83791D_REG_GPIO) & 0x10;
1393	if (has_fanpwm45) {
1394		err = sysfs_create_group(&client->dev.kobj,
1395					 &w83791d_group_fanpwm45);
1396		if (err)
1397			goto error4;
1398	}
1399
1400	/* Everything is ready, now register the working device */
1401	data->hwmon_dev = hwmon_device_register(dev);
1402	if (IS_ERR(data->hwmon_dev)) {
1403		err = PTR_ERR(data->hwmon_dev);
1404		goto error5;
1405	}
1406
1407	return 0;
1408
1409error5:
1410	if (has_fanpwm45)
1411		sysfs_remove_group(&client->dev.kobj, &w83791d_group_fanpwm45);
1412error4:
1413	sysfs_remove_group(&client->dev.kobj, &w83791d_group);
1414	return err;
1415}
1416
1417static int w83791d_remove(struct i2c_client *client)
1418{
1419	struct w83791d_data *data = i2c_get_clientdata(client);
1420
1421	hwmon_device_unregister(data->hwmon_dev);
1422	sysfs_remove_group(&client->dev.kobj, &w83791d_group);
1423
1424	return 0;
1425}
1426
1427static void w83791d_init_client(struct i2c_client *client)
1428{
1429	struct w83791d_data *data = i2c_get_clientdata(client);
1430	u8 tmp;
1431	u8 old_beep;
1432
1433	/*
1434	 * The difference between reset and init is that reset
1435	 * does a hard reset of the chip via index 0x40, bit 7,
1436	 * but init simply forces certain registers to have "sane"
1437	 * values. The hope is that the BIOS has done the right
1438	 * thing (which is why the default is reset=0, init=0),
1439	 * but if not, reset is the hard hammer and init
1440	 * is the soft mallet both of which are trying to whack
1441	 * things into place...
1442	 * NOTE: The data sheet makes a distinction between
1443	 * "power on defaults" and "reset by MR". As far as I can tell,
1444	 * the hard reset puts everything into a power-on state so I'm
1445	 * not sure what "reset by MR" means or how it can happen.
1446	 */
1447	if (reset || init) {
1448		/* keep some BIOS settings when we... */
1449		old_beep = w83791d_read(client, W83791D_REG_BEEP_CONFIG);
1450
1451		if (reset) {
1452			/* ... reset the chip and ... */
1453			w83791d_write(client, W83791D_REG_CONFIG, 0x80);
1454		}
1455
1456		/* ... disable power-on abnormal beep */
1457		w83791d_write(client, W83791D_REG_BEEP_CONFIG, old_beep | 0x80);
1458
1459		/* disable the global beep (not done by hard reset) */
1460		tmp = w83791d_read(client, W83791D_REG_BEEP_CTRL[1]);
1461		w83791d_write(client, W83791D_REG_BEEP_CTRL[1], tmp & 0xef);
1462
1463		if (init) {
1464			/* Make sure monitoring is turned on for add-ons */
1465			tmp = w83791d_read(client, W83791D_REG_TEMP2_CONFIG);
1466			if (tmp & 1) {
1467				w83791d_write(client, W83791D_REG_TEMP2_CONFIG,
1468					tmp & 0xfe);
1469			}
1470
1471			tmp = w83791d_read(client, W83791D_REG_TEMP3_CONFIG);
1472			if (tmp & 1) {
1473				w83791d_write(client, W83791D_REG_TEMP3_CONFIG,
1474					tmp & 0xfe);
1475			}
1476
1477			/* Start monitoring */
1478			tmp = w83791d_read(client, W83791D_REG_CONFIG) & 0xf7;
1479			w83791d_write(client, W83791D_REG_CONFIG, tmp | 0x01);
1480		}
1481	}
1482
1483	data->vrm = vid_which_vrm();
1484}
1485
1486static struct w83791d_data *w83791d_update_device(struct device *dev)
1487{
1488	struct i2c_client *client = to_i2c_client(dev);
1489	struct w83791d_data *data = i2c_get_clientdata(client);
1490	int i, j;
1491	u8 reg_array_tmp[3];
1492	u8 vbat_reg;
1493
1494	mutex_lock(&data->update_lock);
1495
1496	if (time_after(jiffies, data->last_updated + (HZ * 3))
1497			|| !data->valid) {
1498		dev_dbg(dev, "Starting w83791d device update\n");
1499
1500		/* Update the voltages measured value and limits */
1501		for (i = 0; i < NUMBER_OF_VIN; i++) {
1502			data->in[i] = w83791d_read(client,
1503						W83791D_REG_IN[i]);
1504			data->in_max[i] = w83791d_read(client,
1505						W83791D_REG_IN_MAX[i]);
1506			data->in_min[i] = w83791d_read(client,
1507						W83791D_REG_IN_MIN[i]);
1508		}
1509
1510		/* Update the fan counts and limits */
1511		for (i = 0; i < NUMBER_OF_FANIN; i++) {
1512			/* Update the Fan measured value and limits */
1513			data->fan[i] = w83791d_read(client,
1514						W83791D_REG_FAN[i]);
1515			data->fan_min[i] = w83791d_read(client,
1516						W83791D_REG_FAN_MIN[i]);
1517		}
1518
1519		/* Update the fan divisor */
1520		for (i = 0; i < 3; i++) {
1521			reg_array_tmp[i] = w83791d_read(client,
1522						W83791D_REG_FAN_DIV[i]);
1523		}
1524		data->fan_div[0] = (reg_array_tmp[0] >> 4) & 0x03;
1525		data->fan_div[1] = (reg_array_tmp[0] >> 6) & 0x03;
1526		data->fan_div[2] = (reg_array_tmp[1] >> 6) & 0x03;
1527		data->fan_div[3] = reg_array_tmp[2] & 0x07;
1528		data->fan_div[4] = (reg_array_tmp[2] >> 4) & 0x07;
1529
1530		/*
1531		 * The fan divisor for fans 0-2 get bit 2 from
1532		 * bits 5-7 respectively of vbat register
1533		 */
1534		vbat_reg = w83791d_read(client, W83791D_REG_VBAT);
1535		for (i = 0; i < 3; i++)
1536			data->fan_div[i] |= (vbat_reg >> (3 + i)) & 0x04;
1537
1538		/* Update PWM duty cycle */
1539		for (i = 0; i < NUMBER_OF_PWM; i++) {
1540			data->pwm[i] =  w83791d_read(client,
1541						W83791D_REG_PWM[i]);
1542		}
1543
1544		/* Update PWM enable status */
1545		for (i = 0; i < 2; i++) {
1546			reg_array_tmp[i] = w83791d_read(client,
1547						W83791D_REG_FAN_CFG[i]);
1548		}
1549		data->pwm_enable[0] = (reg_array_tmp[0] >> 2) & 0x03;
1550		data->pwm_enable[1] = (reg_array_tmp[0] >> 4) & 0x03;
1551		data->pwm_enable[2] = (reg_array_tmp[1] >> 2) & 0x03;
1552
1553		/* Update PWM target temperature */
1554		for (i = 0; i < 3; i++) {
1555			data->temp_target[i] = w83791d_read(client,
1556				W83791D_REG_TEMP_TARGET[i]) & 0x7f;
1557		}
1558
1559		/* Update PWM temperature tolerance */
1560		for (i = 0; i < 2; i++) {
1561			reg_array_tmp[i] = w83791d_read(client,
1562					W83791D_REG_TEMP_TOL[i]);
1563		}
1564		data->temp_tolerance[0] = reg_array_tmp[0] & 0x0f;
1565		data->temp_tolerance[1] = (reg_array_tmp[0] >> 4) & 0x0f;
1566		data->temp_tolerance[2] = reg_array_tmp[1] & 0x0f;
1567
1568		/* Update the first temperature sensor */
1569		for (i = 0; i < 3; i++) {
1570			data->temp1[i] = w83791d_read(client,
1571						W83791D_REG_TEMP1[i]);
1572		}
1573
1574		/* Update the rest of the temperature sensors */
1575		for (i = 0; i < 2; i++) {
1576			for (j = 0; j < 3; j++) {
1577				data->temp_add[i][j] =
1578					(w83791d_read(client,
1579					W83791D_REG_TEMP_ADD[i][j * 2]) << 8) |
1580					w83791d_read(client,
1581					W83791D_REG_TEMP_ADD[i][j * 2 + 1]);
1582			}
1583		}
1584
1585		/* Update the realtime status */
1586		data->alarms =
1587			w83791d_read(client, W83791D_REG_ALARM1) +
1588			(w83791d_read(client, W83791D_REG_ALARM2) << 8) +
1589			(w83791d_read(client, W83791D_REG_ALARM3) << 16);
1590
1591		/* Update the beep configuration information */
1592		data->beep_mask =
1593			w83791d_read(client, W83791D_REG_BEEP_CTRL[0]) +
1594			(w83791d_read(client, W83791D_REG_BEEP_CTRL[1]) << 8) +
1595			(w83791d_read(client, W83791D_REG_BEEP_CTRL[2]) << 16);
1596
1597		/* Extract global beep enable flag */
1598		data->beep_enable =
1599			(data->beep_mask >> GLOBAL_BEEP_ENABLE_SHIFT) & 0x01;
1600
1601		/* Update the cpu voltage information */
1602		i = w83791d_read(client, W83791D_REG_VID_FANDIV);
1603		data->vid = i & 0x0f;
1604		data->vid |= (w83791d_read(client, W83791D_REG_DID_VID4) & 0x01)
1605				<< 4;
1606
1607		data->last_updated = jiffies;
1608		data->valid = 1;
1609	}
1610
1611	mutex_unlock(&data->update_lock);
1612
1613#ifdef DEBUG
1614	w83791d_print_debug(data, dev);
1615#endif
1616
1617	return data;
1618}
1619
1620#ifdef DEBUG
1621static void w83791d_print_debug(struct w83791d_data *data, struct device *dev)
1622{
1623	int i = 0, j = 0;
1624
1625	dev_dbg(dev, "======Start of w83791d debug values======\n");
1626	dev_dbg(dev, "%d set of Voltages: ===>\n", NUMBER_OF_VIN);
1627	for (i = 0; i < NUMBER_OF_VIN; i++) {
1628		dev_dbg(dev, "vin[%d] is:     0x%02x\n", i, data->in[i]);
1629		dev_dbg(dev, "vin[%d] min is: 0x%02x\n", i, data->in_min[i]);
1630		dev_dbg(dev, "vin[%d] max is: 0x%02x\n", i, data->in_max[i]);
1631	}
1632	dev_dbg(dev, "%d set of Fan Counts/Divisors: ===>\n", NUMBER_OF_FANIN);
1633	for (i = 0; i < NUMBER_OF_FANIN; i++) {
1634		dev_dbg(dev, "fan[%d] is:     0x%02x\n", i, data->fan[i]);
1635		dev_dbg(dev, "fan[%d] min is: 0x%02x\n", i, data->fan_min[i]);
1636		dev_dbg(dev, "fan_div[%d] is: 0x%02x\n", i, data->fan_div[i]);
1637	}
1638
1639	/*
1640	 * temperature math is signed, but only print out the
1641	 * bits that matter
1642	 */
1643	dev_dbg(dev, "%d set of Temperatures: ===>\n", NUMBER_OF_TEMPIN);
1644	for (i = 0; i < 3; i++)
1645		dev_dbg(dev, "temp1[%d] is: 0x%02x\n", i, (u8) data->temp1[i]);
1646	for (i = 0; i < 2; i++) {
1647		for (j = 0; j < 3; j++) {
1648			dev_dbg(dev, "temp_add[%d][%d] is: 0x%04x\n", i, j,
1649				(u16) data->temp_add[i][j]);
1650		}
1651	}
1652
1653	dev_dbg(dev, "Misc Information: ===>\n");
1654	dev_dbg(dev, "alarm is:     0x%08x\n", data->alarms);
1655	dev_dbg(dev, "beep_mask is: 0x%08x\n", data->beep_mask);
1656	dev_dbg(dev, "beep_enable is: %d\n", data->beep_enable);
1657	dev_dbg(dev, "vid is: 0x%02x\n", data->vid);
1658	dev_dbg(dev, "vrm is: 0x%02x\n", data->vrm);
1659	dev_dbg(dev, "=======End of w83791d debug values========\n");
1660	dev_dbg(dev, "\n");
1661}
1662#endif
1663
1664module_i2c_driver(w83791d_driver);
1665
1666MODULE_AUTHOR("Charles Spirakis <bezaur@gmail.com>");
1667MODULE_DESCRIPTION("W83791D driver");
1668MODULE_LICENSE("GPL");