root/drivers/hwmon/pc87360.c

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DEFINITIONS

This source file includes following definitions.
  1. superio_outb
  2. superio_inb
  3. superio_exit
  4. PWM_TO_REG
  5. fan_input_show
  6. fan_min_show
  7. fan_div_show
  8. fan_status_show
  9. fan_min_store
  10. pwm_show
  11. pwm_store
  12. in_input_show
  13. in_min_show
  14. in_max_show
  15. in_status_show
  16. in_min_store
  17. in_max_store
  18. in_min_alarm_show
  19. in_max_alarm_show
  20. cpu0_vid_show
  21. vrm_show
  22. vrm_store
  23. alarms_in_show
  24. therm_input_show
  25. therm_min_show
  26. therm_max_show
  27. therm_crit_show
  28. therm_status_show
  29. therm_min_store
  30. therm_max_store
  31. therm_crit_store
  32. therm_min_alarm_show
  33. therm_max_alarm_show
  34. therm_crit_alarm_show
  35. temp_input_show
  36. temp_min_show
  37. temp_max_show
  38. temp_crit_show
  39. temp_status_show
  40. temp_min_store
  41. temp_max_store
  42. temp_crit_store
  43. alarms_temp_show
  44. temp_min_alarm_show
  45. temp_max_alarm_show
  46. temp_crit_alarm_show
  47. temp_fault_show
  48. name_show
  49. pc87360_find
  50. pc87360_remove_files
  51. pc87360_probe
  52. pc87360_remove
  53. pc87360_read_value
  54. pc87360_write_value
  55. pc87360_init_device
  56. pc87360_autodiv
  57. pc87360_update_device
  58. pc87360_device_add
  59. pc87360_init
  60. pc87360_exit

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *  pc87360.c - Part of lm_sensors, Linux kernel modules
   4  *              for hardware monitoring
   5  *  Copyright (C) 2004, 2007 Jean Delvare <jdelvare@suse.de>
   6  *
   7  *  Copied from smsc47m1.c:
   8  *  Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
   9  *
  10  *  Supports the following chips:
  11  *
  12  *  Chip        #vin    #fan    #pwm    #temp   devid
  13  *  PC87360     -       2       2       -       0xE1
  14  *  PC87363     -       2       2       -       0xE8
  15  *  PC87364     -       3       3       -       0xE4
  16  *  PC87365     11      3       3       2       0xE5
  17  *  PC87366     11      3       3       3-4     0xE9
  18  *
  19  *  This driver assumes that no more than one chip is present, and one of
  20  *  the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F).
  21  */
  22 
  23 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  24 
  25 #include <linux/module.h>
  26 #include <linux/init.h>
  27 #include <linux/slab.h>
  28 #include <linux/jiffies.h>
  29 #include <linux/platform_device.h>
  30 #include <linux/hwmon.h>
  31 #include <linux/hwmon-sysfs.h>
  32 #include <linux/hwmon-vid.h>
  33 #include <linux/err.h>
  34 #include <linux/mutex.h>
  35 #include <linux/acpi.h>
  36 #include <linux/io.h>
  37 
  38 static u8 devid;
  39 static struct platform_device *pdev;
  40 static unsigned short extra_isa[3];
  41 static u8 confreg[4];
  42 
  43 static int init = 1;
  44 module_param(init, int, 0);
  45 MODULE_PARM_DESC(init,
  46 "Chip initialization level:\n"
  47 " 0: None\n"
  48 "*1: Forcibly enable internal voltage and temperature channels, except in9\n"
  49 " 2: Forcibly enable all voltage and temperature channels, except in9\n"
  50 " 3: Forcibly enable all voltage and temperature channels, including in9");
  51 
  52 static unsigned short force_id;
  53 module_param(force_id, ushort, 0);
  54 MODULE_PARM_DESC(force_id, "Override the detected device ID");
  55 
  56 /*
  57  * Super-I/O registers and operations
  58  */
  59 
  60 #define DEV     0x07    /* Register: Logical device select */
  61 #define DEVID   0x20    /* Register: Device ID */
  62 #define ACT     0x30    /* Register: Device activation */
  63 #define BASE    0x60    /* Register: Base address */
  64 
  65 #define FSCM    0x09    /* Logical device: fans */
  66 #define VLM     0x0d    /* Logical device: voltages */
  67 #define TMS     0x0e    /* Logical device: temperatures */
  68 #define LDNI_MAX 3
  69 static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS };
  70 
  71 #define LD_FAN          0
  72 #define LD_IN           1
  73 #define LD_TEMP         2
  74 
  75 static inline void superio_outb(int sioaddr, int reg, int val)
  76 {
  77         outb(reg, sioaddr);
  78         outb(val, sioaddr + 1);
  79 }
  80 
  81 static inline int superio_inb(int sioaddr, int reg)
  82 {
  83         outb(reg, sioaddr);
  84         return inb(sioaddr + 1);
  85 }
  86 
  87 static inline void superio_exit(int sioaddr)
  88 {
  89         outb(0x02, sioaddr);
  90         outb(0x02, sioaddr + 1);
  91 }
  92 
  93 /*
  94  * Logical devices
  95  */
  96 
  97 #define PC87360_EXTENT          0x10
  98 #define PC87365_REG_BANK        0x09
  99 #define NO_BANK                 0xff
 100 
 101 /*
 102  * Fan registers and conversions
 103  */
 104 
 105 /* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
 106 #define PC87360_REG_PRESCALE(nr)        (0x00 + 2 * (nr))
 107 #define PC87360_REG_PWM(nr)             (0x01 + 2 * (nr))
 108 #define PC87360_REG_FAN_MIN(nr)         (0x06 + 3 * (nr))
 109 #define PC87360_REG_FAN(nr)             (0x07 + 3 * (nr))
 110 #define PC87360_REG_FAN_STATUS(nr)      (0x08 + 3 * (nr))
 111 
 112 #define FAN_FROM_REG(val, div)          ((val) == 0 ? 0 : \
 113                                          480000 / ((val) * (div)))
 114 #define FAN_TO_REG(val, div)            ((val) <= 100 ? 0 : \
 115                                          480000 / ((val) * (div)))
 116 #define FAN_DIV_FROM_REG(val)           (1 << (((val) >> 5) & 0x03))
 117 #define FAN_STATUS_FROM_REG(val)        ((val) & 0x07)
 118 
 119 #define FAN_CONFIG_MONITOR(val, nr)     (((val) >> (2 + (nr) * 3)) & 1)
 120 #define FAN_CONFIG_CONTROL(val, nr)     (((val) >> (3 + (nr) * 3)) & 1)
 121 #define FAN_CONFIG_INVERT(val, nr)      (((val) >> (4 + (nr) * 3)) & 1)
 122 
 123 #define PWM_FROM_REG(val, inv)          ((inv) ? 255 - (val) : (val))
 124 static inline u8 PWM_TO_REG(int val, int inv)
 125 {
 126         if (inv)
 127                 val = 255 - val;
 128         if (val < 0)
 129                 return 0;
 130         if (val > 255)
 131                 return 255;
 132         return val;
 133 }
 134 
 135 /*
 136  * Voltage registers and conversions
 137  */
 138 
 139 #define PC87365_REG_IN_CONVRATE         0x07
 140 #define PC87365_REG_IN_CONFIG           0x08
 141 #define PC87365_REG_IN                  0x0B
 142 #define PC87365_REG_IN_MIN              0x0D
 143 #define PC87365_REG_IN_MAX              0x0C
 144 #define PC87365_REG_IN_STATUS           0x0A
 145 #define PC87365_REG_IN_ALARMS1          0x00
 146 #define PC87365_REG_IN_ALARMS2          0x01
 147 #define PC87365_REG_VID                 0x06
 148 
 149 #define IN_FROM_REG(val, ref)           (((val) * (ref) + 128) / 256)
 150 #define IN_TO_REG(val, ref)             ((val) < 0 ? 0 : \
 151                                          (val) * 256 >= (ref) * 255 ? 255 : \
 152                                          ((val) * 256 + (ref) / 2) / (ref))
 153 
 154 /*
 155  * Temperature registers and conversions
 156  */
 157 
 158 #define PC87365_REG_TEMP_CONFIG         0x08
 159 #define PC87365_REG_TEMP                0x0B
 160 #define PC87365_REG_TEMP_MIN            0x0D
 161 #define PC87365_REG_TEMP_MAX            0x0C
 162 #define PC87365_REG_TEMP_CRIT           0x0E
 163 #define PC87365_REG_TEMP_STATUS         0x0A
 164 #define PC87365_REG_TEMP_ALARMS         0x00
 165 
 166 #define TEMP_FROM_REG(val)              ((val) * 1000)
 167 #define TEMP_TO_REG(val)                ((val) < -55000 ? -55 : \
 168                                          (val) > 127000 ? 127 : \
 169                                          (val) < 0 ? ((val) - 500) / 1000 : \
 170                                          ((val) + 500) / 1000)
 171 
 172 /*
 173  * Device data
 174  */
 175 
 176 struct pc87360_data {
 177         const char *name;
 178         struct device *hwmon_dev;
 179         struct mutex lock;
 180         struct mutex update_lock;
 181         char valid;             /* !=0 if following fields are valid */
 182         unsigned long last_updated;     /* In jiffies */
 183 
 184         int address[3];
 185 
 186         u8 fannr, innr, tempnr;
 187 
 188         u8 fan[3];              /* Register value */
 189         u8 fan_min[3];          /* Register value */
 190         u8 fan_status[3];       /* Register value */
 191         u8 pwm[3];              /* Register value */
 192         u16 fan_conf;           /* Configuration register values, combined */
 193 
 194         u16 in_vref;            /* 1 mV/bit */
 195         u8 in[14];              /* Register value */
 196         u8 in_min[14];          /* Register value */
 197         u8 in_max[14];          /* Register value */
 198         u8 in_crit[3];          /* Register value */
 199         u8 in_status[14];       /* Register value */
 200         u16 in_alarms;          /* Register values, combined, masked */
 201         u8 vid_conf;            /* Configuration register value */
 202         u8 vrm;
 203         u8 vid;                 /* Register value */
 204 
 205         s8 temp[3];             /* Register value */
 206         s8 temp_min[3];         /* Register value */
 207         s8 temp_max[3];         /* Register value */
 208         s8 temp_crit[3];        /* Register value */
 209         u8 temp_status[3];      /* Register value */
 210         u8 temp_alarms;         /* Register value, masked */
 211 };
 212 
 213 /*
 214  * Functions declaration
 215  */
 216 
 217 static int pc87360_probe(struct platform_device *pdev);
 218 static int pc87360_remove(struct platform_device *pdev);
 219 
 220 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
 221                               u8 reg);
 222 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
 223                                 u8 reg, u8 value);
 224 static void pc87360_init_device(struct platform_device *pdev,
 225                                 int use_thermistors);
 226 static struct pc87360_data *pc87360_update_device(struct device *dev);
 227 
 228 /*
 229  * Driver data
 230  */
 231 
 232 static struct platform_driver pc87360_driver = {
 233         .driver = {
 234                 .name   = "pc87360",
 235         },
 236         .probe          = pc87360_probe,
 237         .remove         = pc87360_remove,
 238 };
 239 
 240 /*
 241  * Sysfs stuff
 242  */
 243 
 244 static ssize_t fan_input_show(struct device *dev,
 245                               struct device_attribute *devattr, char *buf)
 246 {
 247         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 248         struct pc87360_data *data = pc87360_update_device(dev);
 249         return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
 250                        FAN_DIV_FROM_REG(data->fan_status[attr->index])));
 251 }
 252 static ssize_t fan_min_show(struct device *dev,
 253                             struct device_attribute *devattr, char *buf)
 254 {
 255         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 256         struct pc87360_data *data = pc87360_update_device(dev);
 257         return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
 258                        FAN_DIV_FROM_REG(data->fan_status[attr->index])));
 259 }
 260 static ssize_t fan_div_show(struct device *dev,
 261                             struct device_attribute *devattr, char *buf)
 262 {
 263         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 264         struct pc87360_data *data = pc87360_update_device(dev);
 265         return sprintf(buf, "%u\n",
 266                        FAN_DIV_FROM_REG(data->fan_status[attr->index]));
 267 }
 268 static ssize_t fan_status_show(struct device *dev,
 269                                struct device_attribute *devattr, char *buf)
 270 {
 271         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 272         struct pc87360_data *data = pc87360_update_device(dev);
 273         return sprintf(buf, "%u\n",
 274                        FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
 275 }
 276 static ssize_t fan_min_store(struct device *dev,
 277                              struct device_attribute *devattr,
 278                              const char *buf, size_t count)
 279 {
 280         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 281         struct pc87360_data *data = dev_get_drvdata(dev);
 282         long fan_min;
 283         int err;
 284 
 285         err = kstrtol(buf, 10, &fan_min);
 286         if (err)
 287                 return err;
 288 
 289         mutex_lock(&data->update_lock);
 290         fan_min = FAN_TO_REG(fan_min,
 291                              FAN_DIV_FROM_REG(data->fan_status[attr->index]));
 292 
 293         /* If it wouldn't fit, change clock divisor */
 294         while (fan_min > 255
 295             && (data->fan_status[attr->index] & 0x60) != 0x60) {
 296                 fan_min >>= 1;
 297                 data->fan[attr->index] >>= 1;
 298                 data->fan_status[attr->index] += 0x20;
 299         }
 300         data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
 301         pc87360_write_value(data, LD_FAN, NO_BANK,
 302                             PC87360_REG_FAN_MIN(attr->index),
 303                             data->fan_min[attr->index]);
 304 
 305         /* Write new divider, preserve alarm bits */
 306         pc87360_write_value(data, LD_FAN, NO_BANK,
 307                             PC87360_REG_FAN_STATUS(attr->index),
 308                             data->fan_status[attr->index] & 0xF9);
 309         mutex_unlock(&data->update_lock);
 310 
 311         return count;
 312 }
 313 
 314 static struct sensor_device_attribute fan_input[] = {
 315         SENSOR_ATTR_RO(fan1_input, fan_input, 0),
 316         SENSOR_ATTR_RO(fan2_input, fan_input, 1),
 317         SENSOR_ATTR_RO(fan3_input, fan_input, 2),
 318 };
 319 static struct sensor_device_attribute fan_status[] = {
 320         SENSOR_ATTR_RO(fan1_status, fan_status, 0),
 321         SENSOR_ATTR_RO(fan2_status, fan_status, 1),
 322         SENSOR_ATTR_RO(fan3_status, fan_status, 2),
 323 };
 324 static struct sensor_device_attribute fan_div[] = {
 325         SENSOR_ATTR_RO(fan1_div, fan_div, 0),
 326         SENSOR_ATTR_RO(fan2_div, fan_div, 1),
 327         SENSOR_ATTR_RO(fan3_div, fan_div, 2),
 328 };
 329 static struct sensor_device_attribute fan_min[] = {
 330         SENSOR_ATTR_RW(fan1_min, fan_min, 0),
 331         SENSOR_ATTR_RW(fan2_min, fan_min, 1),
 332         SENSOR_ATTR_RW(fan3_min, fan_min, 2),
 333 };
 334 
 335 #define FAN_UNIT_ATTRS(X)               \
 336 {       &fan_input[X].dev_attr.attr,    \
 337         &fan_status[X].dev_attr.attr,   \
 338         &fan_div[X].dev_attr.attr,      \
 339         &fan_min[X].dev_attr.attr,      \
 340         NULL                            \
 341 }
 342 
 343 static ssize_t pwm_show(struct device *dev, struct device_attribute *devattr,
 344                         char *buf)
 345 {
 346         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 347         struct pc87360_data *data = pc87360_update_device(dev);
 348         return sprintf(buf, "%u\n",
 349                        PWM_FROM_REG(data->pwm[attr->index],
 350                                     FAN_CONFIG_INVERT(data->fan_conf,
 351                                                       attr->index)));
 352 }
 353 static ssize_t pwm_store(struct device *dev, struct device_attribute *devattr,
 354                          const char *buf, size_t count)
 355 {
 356         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 357         struct pc87360_data *data = dev_get_drvdata(dev);
 358         long val;
 359         int err;
 360 
 361         err = kstrtol(buf, 10, &val);
 362         if (err)
 363                 return err;
 364 
 365         mutex_lock(&data->update_lock);
 366         data->pwm[attr->index] = PWM_TO_REG(val,
 367                               FAN_CONFIG_INVERT(data->fan_conf, attr->index));
 368         pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
 369                             data->pwm[attr->index]);
 370         mutex_unlock(&data->update_lock);
 371         return count;
 372 }
 373 
 374 static struct sensor_device_attribute pwm[] = {
 375         SENSOR_ATTR_RW(pwm1, pwm, 0),
 376         SENSOR_ATTR_RW(pwm2, pwm, 1),
 377         SENSOR_ATTR_RW(pwm3, pwm, 2),
 378 };
 379 
 380 static struct attribute *pc8736x_fan_attr[][5] = {
 381         FAN_UNIT_ATTRS(0),
 382         FAN_UNIT_ATTRS(1),
 383         FAN_UNIT_ATTRS(2)
 384 };
 385 
 386 static const struct attribute_group pc8736x_fan_attr_group[] = {
 387         { .attrs = pc8736x_fan_attr[0], },
 388         { .attrs = pc8736x_fan_attr[1], },
 389         { .attrs = pc8736x_fan_attr[2], },
 390 };
 391 
 392 static ssize_t in_input_show(struct device *dev,
 393                              struct device_attribute *devattr, char *buf)
 394 {
 395         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 396         struct pc87360_data *data = pc87360_update_device(dev);
 397         return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
 398                        data->in_vref));
 399 }
 400 static ssize_t in_min_show(struct device *dev,
 401                            struct device_attribute *devattr, char *buf)
 402 {
 403         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 404         struct pc87360_data *data = pc87360_update_device(dev);
 405         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
 406                        data->in_vref));
 407 }
 408 static ssize_t in_max_show(struct device *dev,
 409                            struct device_attribute *devattr, char *buf)
 410 {
 411         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 412         struct pc87360_data *data = pc87360_update_device(dev);
 413         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
 414                        data->in_vref));
 415 }
 416 static ssize_t in_status_show(struct device *dev,
 417                               struct device_attribute *devattr, char *buf)
 418 {
 419         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 420         struct pc87360_data *data = pc87360_update_device(dev);
 421         return sprintf(buf, "%u\n", data->in_status[attr->index]);
 422 }
 423 static ssize_t in_min_store(struct device *dev,
 424                             struct device_attribute *devattr, const char *buf,
 425                             size_t count)
 426 {
 427         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 428         struct pc87360_data *data = dev_get_drvdata(dev);
 429         long val;
 430         int err;
 431 
 432         err = kstrtol(buf, 10, &val);
 433         if (err)
 434                 return err;
 435 
 436         mutex_lock(&data->update_lock);
 437         data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
 438         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
 439                             data->in_min[attr->index]);
 440         mutex_unlock(&data->update_lock);
 441         return count;
 442 }
 443 static ssize_t in_max_store(struct device *dev,
 444                             struct device_attribute *devattr, const char *buf,
 445                             size_t count)
 446 {
 447         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 448         struct pc87360_data *data = dev_get_drvdata(dev);
 449         long val;
 450         int err;
 451 
 452         err = kstrtol(buf, 10, &val);
 453         if (err)
 454                 return err;
 455 
 456         mutex_lock(&data->update_lock);
 457         data->in_max[attr->index] = IN_TO_REG(val,
 458                                data->in_vref);
 459         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
 460                             data->in_max[attr->index]);
 461         mutex_unlock(&data->update_lock);
 462         return count;
 463 }
 464 
 465 static struct sensor_device_attribute in_input[] = {
 466         SENSOR_ATTR_RO(in0_input, in_input, 0),
 467         SENSOR_ATTR_RO(in1_input, in_input, 1),
 468         SENSOR_ATTR_RO(in2_input, in_input, 2),
 469         SENSOR_ATTR_RO(in3_input, in_input, 3),
 470         SENSOR_ATTR_RO(in4_input, in_input, 4),
 471         SENSOR_ATTR_RO(in5_input, in_input, 5),
 472         SENSOR_ATTR_RO(in6_input, in_input, 6),
 473         SENSOR_ATTR_RO(in7_input, in_input, 7),
 474         SENSOR_ATTR_RO(in8_input, in_input, 8),
 475         SENSOR_ATTR_RO(in9_input, in_input, 9),
 476         SENSOR_ATTR_RO(in10_input, in_input, 10),
 477 };
 478 static struct sensor_device_attribute in_status[] = {
 479         SENSOR_ATTR_RO(in0_status, in_status, 0),
 480         SENSOR_ATTR_RO(in1_status, in_status, 1),
 481         SENSOR_ATTR_RO(in2_status, in_status, 2),
 482         SENSOR_ATTR_RO(in3_status, in_status, 3),
 483         SENSOR_ATTR_RO(in4_status, in_status, 4),
 484         SENSOR_ATTR_RO(in5_status, in_status, 5),
 485         SENSOR_ATTR_RO(in6_status, in_status, 6),
 486         SENSOR_ATTR_RO(in7_status, in_status, 7),
 487         SENSOR_ATTR_RO(in8_status, in_status, 8),
 488         SENSOR_ATTR_RO(in9_status, in_status, 9),
 489         SENSOR_ATTR_RO(in10_status, in_status, 10),
 490 };
 491 static struct sensor_device_attribute in_min[] = {
 492         SENSOR_ATTR_RW(in0_min, in_min, 0),
 493         SENSOR_ATTR_RW(in1_min, in_min, 1),
 494         SENSOR_ATTR_RW(in2_min, in_min, 2),
 495         SENSOR_ATTR_RW(in3_min, in_min, 3),
 496         SENSOR_ATTR_RW(in4_min, in_min, 4),
 497         SENSOR_ATTR_RW(in5_min, in_min, 5),
 498         SENSOR_ATTR_RW(in6_min, in_min, 6),
 499         SENSOR_ATTR_RW(in7_min, in_min, 7),
 500         SENSOR_ATTR_RW(in8_min, in_min, 8),
 501         SENSOR_ATTR_RW(in9_min, in_min, 9),
 502         SENSOR_ATTR_RW(in10_min, in_min, 10),
 503 };
 504 static struct sensor_device_attribute in_max[] = {
 505         SENSOR_ATTR_RW(in0_max, in_max, 0),
 506         SENSOR_ATTR_RW(in1_max, in_max, 1),
 507         SENSOR_ATTR_RW(in2_max, in_max, 2),
 508         SENSOR_ATTR_RW(in3_max, in_max, 3),
 509         SENSOR_ATTR_RW(in4_max, in_max, 4),
 510         SENSOR_ATTR_RW(in5_max, in_max, 5),
 511         SENSOR_ATTR_RW(in6_max, in_max, 6),
 512         SENSOR_ATTR_RW(in7_max, in_max, 7),
 513         SENSOR_ATTR_RW(in8_max, in_max, 8),
 514         SENSOR_ATTR_RW(in9_max, in_max, 9),
 515         SENSOR_ATTR_RW(in10_max, in_max, 10),
 516 };
 517 
 518 /* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
 519 #define CHAN_ALM_MIN    0x02    /* min limit crossed */
 520 #define CHAN_ALM_MAX    0x04    /* max limit exceeded */
 521 #define TEMP_ALM_CRIT   0x08    /* temp crit exceeded (temp only) */
 522 
 523 /*
 524  * show_in_min/max_alarm() reads data from the per-channel status
 525  * register (sec 11.5.12), not the vin event status registers (sec
 526  * 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms)
 527  */
 528 
 529 static ssize_t in_min_alarm_show(struct device *dev,
 530                                  struct device_attribute *devattr, char *buf)
 531 {
 532         struct pc87360_data *data = pc87360_update_device(dev);
 533         unsigned nr = to_sensor_dev_attr(devattr)->index;
 534 
 535         return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
 536 }
 537 static ssize_t in_max_alarm_show(struct device *dev,
 538                                  struct device_attribute *devattr, char *buf)
 539 {
 540         struct pc87360_data *data = pc87360_update_device(dev);
 541         unsigned nr = to_sensor_dev_attr(devattr)->index;
 542 
 543         return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
 544 }
 545 
 546 static struct sensor_device_attribute in_min_alarm[] = {
 547         SENSOR_ATTR_RO(in0_min_alarm, in_min_alarm, 0),
 548         SENSOR_ATTR_RO(in1_min_alarm, in_min_alarm, 1),
 549         SENSOR_ATTR_RO(in2_min_alarm, in_min_alarm, 2),
 550         SENSOR_ATTR_RO(in3_min_alarm, in_min_alarm, 3),
 551         SENSOR_ATTR_RO(in4_min_alarm, in_min_alarm, 4),
 552         SENSOR_ATTR_RO(in5_min_alarm, in_min_alarm, 5),
 553         SENSOR_ATTR_RO(in6_min_alarm, in_min_alarm, 6),
 554         SENSOR_ATTR_RO(in7_min_alarm, in_min_alarm, 7),
 555         SENSOR_ATTR_RO(in8_min_alarm, in_min_alarm, 8),
 556         SENSOR_ATTR_RO(in9_min_alarm, in_min_alarm, 9),
 557         SENSOR_ATTR_RO(in10_min_alarm, in_min_alarm, 10),
 558 };
 559 static struct sensor_device_attribute in_max_alarm[] = {
 560         SENSOR_ATTR_RO(in0_max_alarm, in_max_alarm, 0),
 561         SENSOR_ATTR_RO(in1_max_alarm, in_max_alarm, 1),
 562         SENSOR_ATTR_RO(in2_max_alarm, in_max_alarm, 2),
 563         SENSOR_ATTR_RO(in3_max_alarm, in_max_alarm, 3),
 564         SENSOR_ATTR_RO(in4_max_alarm, in_max_alarm, 4),
 565         SENSOR_ATTR_RO(in5_max_alarm, in_max_alarm, 5),
 566         SENSOR_ATTR_RO(in6_max_alarm, in_max_alarm, 6),
 567         SENSOR_ATTR_RO(in7_max_alarm, in_max_alarm, 7),
 568         SENSOR_ATTR_RO(in8_max_alarm, in_max_alarm, 8),
 569         SENSOR_ATTR_RO(in9_max_alarm, in_max_alarm, 9),
 570         SENSOR_ATTR_RO(in10_max_alarm, in_max_alarm, 10),
 571 };
 572 
 573 #define VIN_UNIT_ATTRS(X) \
 574         &in_input[X].dev_attr.attr,     \
 575         &in_status[X].dev_attr.attr,    \
 576         &in_min[X].dev_attr.attr,       \
 577         &in_max[X].dev_attr.attr,       \
 578         &in_min_alarm[X].dev_attr.attr, \
 579         &in_max_alarm[X].dev_attr.attr
 580 
 581 static ssize_t cpu0_vid_show(struct device *dev,
 582                              struct device_attribute *attr, char *buf)
 583 {
 584         struct pc87360_data *data = pc87360_update_device(dev);
 585         return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
 586 }
 587 static DEVICE_ATTR_RO(cpu0_vid);
 588 
 589 static ssize_t vrm_show(struct device *dev, struct device_attribute *attr,
 590                         char *buf)
 591 {
 592         struct pc87360_data *data = dev_get_drvdata(dev);
 593         return sprintf(buf, "%u\n", data->vrm);
 594 }
 595 static ssize_t vrm_store(struct device *dev, struct device_attribute *attr,
 596                          const char *buf, size_t count)
 597 {
 598         struct pc87360_data *data = dev_get_drvdata(dev);
 599         unsigned long val;
 600         int err;
 601 
 602         err = kstrtoul(buf, 10, &val);
 603         if (err)
 604                 return err;
 605 
 606         if (val > 255)
 607                 return -EINVAL;
 608 
 609         data->vrm = val;
 610         return count;
 611 }
 612 static DEVICE_ATTR_RW(vrm);
 613 
 614 static ssize_t alarms_in_show(struct device *dev,
 615                               struct device_attribute *attr, char *buf)
 616 {
 617         struct pc87360_data *data = pc87360_update_device(dev);
 618         return sprintf(buf, "%u\n", data->in_alarms);
 619 }
 620 static DEVICE_ATTR_RO(alarms_in);
 621 
 622 static struct attribute *pc8736x_vin_attr_array[] = {
 623         VIN_UNIT_ATTRS(0),
 624         VIN_UNIT_ATTRS(1),
 625         VIN_UNIT_ATTRS(2),
 626         VIN_UNIT_ATTRS(3),
 627         VIN_UNIT_ATTRS(4),
 628         VIN_UNIT_ATTRS(5),
 629         VIN_UNIT_ATTRS(6),
 630         VIN_UNIT_ATTRS(7),
 631         VIN_UNIT_ATTRS(8),
 632         VIN_UNIT_ATTRS(9),
 633         VIN_UNIT_ATTRS(10),
 634         &dev_attr_cpu0_vid.attr,
 635         &dev_attr_vrm.attr,
 636         &dev_attr_alarms_in.attr,
 637         NULL
 638 };
 639 static const struct attribute_group pc8736x_vin_group = {
 640         .attrs = pc8736x_vin_attr_array,
 641 };
 642 
 643 static ssize_t therm_input_show(struct device *dev,
 644                                 struct device_attribute *devattr, char *buf)
 645 {
 646         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 647         struct pc87360_data *data = pc87360_update_device(dev);
 648         return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
 649                        data->in_vref));
 650 }
 651 static ssize_t therm_min_show(struct device *dev,
 652                               struct device_attribute *devattr, char *buf)
 653 {
 654         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 655         struct pc87360_data *data = pc87360_update_device(dev);
 656         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
 657                        data->in_vref));
 658 }
 659 static ssize_t therm_max_show(struct device *dev,
 660                               struct device_attribute *devattr, char *buf)
 661 {
 662         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 663         struct pc87360_data *data = pc87360_update_device(dev);
 664         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
 665                        data->in_vref));
 666 }
 667 static ssize_t therm_crit_show(struct device *dev,
 668                                struct device_attribute *devattr, char *buf)
 669 {
 670         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 671         struct pc87360_data *data = pc87360_update_device(dev);
 672         return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
 673                        data->in_vref));
 674 }
 675 static ssize_t therm_status_show(struct device *dev,
 676                                  struct device_attribute *devattr, char *buf)
 677 {
 678         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 679         struct pc87360_data *data = pc87360_update_device(dev);
 680         return sprintf(buf, "%u\n", data->in_status[attr->index]);
 681 }
 682 
 683 static ssize_t therm_min_store(struct device *dev,
 684                                struct device_attribute *devattr,
 685                                const char *buf, size_t count)
 686 {
 687         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 688         struct pc87360_data *data = dev_get_drvdata(dev);
 689         long val;
 690         int err;
 691 
 692         err = kstrtol(buf, 10, &val);
 693         if (err)
 694                 return err;
 695 
 696         mutex_lock(&data->update_lock);
 697         data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
 698         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
 699                             data->in_min[attr->index]);
 700         mutex_unlock(&data->update_lock);
 701         return count;
 702 }
 703 
 704 static ssize_t therm_max_store(struct device *dev,
 705                                struct device_attribute *devattr,
 706                                const char *buf, size_t count)
 707 {
 708         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 709         struct pc87360_data *data = dev_get_drvdata(dev);
 710         long val;
 711         int err;
 712 
 713         err = kstrtol(buf, 10, &val);
 714         if (err)
 715                 return err;
 716 
 717         mutex_lock(&data->update_lock);
 718         data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
 719         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
 720                             data->in_max[attr->index]);
 721         mutex_unlock(&data->update_lock);
 722         return count;
 723 }
 724 static ssize_t therm_crit_store(struct device *dev,
 725                                 struct device_attribute *devattr,
 726                                 const char *buf, size_t count)
 727 {
 728         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 729         struct pc87360_data *data = dev_get_drvdata(dev);
 730         long val;
 731         int err;
 732 
 733         err = kstrtol(buf, 10, &val);
 734         if (err)
 735                 return err;
 736 
 737         mutex_lock(&data->update_lock);
 738         data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
 739         pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
 740                             data->in_crit[attr->index-11]);
 741         mutex_unlock(&data->update_lock);
 742         return count;
 743 }
 744 
 745 /*
 746  * the +11 term below reflects the fact that VLM units 11,12,13 are
 747  * used in the chip to measure voltage across the thermistors
 748  */
 749 static struct sensor_device_attribute therm_input[] = {
 750         SENSOR_ATTR_RO(temp4_input, therm_input, 0 + 11),
 751         SENSOR_ATTR_RO(temp5_input, therm_input, 1 + 11),
 752         SENSOR_ATTR_RO(temp6_input, therm_input, 2 + 11),
 753 };
 754 static struct sensor_device_attribute therm_status[] = {
 755         SENSOR_ATTR_RO(temp4_status, therm_status, 0 + 11),
 756         SENSOR_ATTR_RO(temp5_status, therm_status, 1 + 11),
 757         SENSOR_ATTR_RO(temp6_status, therm_status, 2 + 11),
 758 };
 759 static struct sensor_device_attribute therm_min[] = {
 760         SENSOR_ATTR_RW(temp4_min, therm_min, 0 + 11),
 761         SENSOR_ATTR_RW(temp5_min, therm_min, 1 + 11),
 762         SENSOR_ATTR_RW(temp6_min, therm_min, 2 + 11),
 763 };
 764 static struct sensor_device_attribute therm_max[] = {
 765         SENSOR_ATTR_RW(temp4_max, therm_max, 0 + 11),
 766         SENSOR_ATTR_RW(temp5_max, therm_max, 1 + 11),
 767         SENSOR_ATTR_RW(temp6_max, therm_max, 2 + 11),
 768 };
 769 static struct sensor_device_attribute therm_crit[] = {
 770         SENSOR_ATTR_RW(temp4_crit, therm_crit, 0 + 11),
 771         SENSOR_ATTR_RW(temp5_crit, therm_crit, 1 + 11),
 772         SENSOR_ATTR_RW(temp6_crit, therm_crit, 2 + 11),
 773 };
 774 
 775 /*
 776  * show_therm_min/max_alarm() reads data from the per-channel voltage
 777  * status register (sec 11.5.12)
 778  */
 779 
 780 static ssize_t therm_min_alarm_show(struct device *dev,
 781                                     struct device_attribute *devattr,
 782                                     char *buf)
 783 {
 784         struct pc87360_data *data = pc87360_update_device(dev);
 785         unsigned nr = to_sensor_dev_attr(devattr)->index;
 786 
 787         return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
 788 }
 789 static ssize_t therm_max_alarm_show(struct device *dev,
 790                                     struct device_attribute *devattr,
 791                                     char *buf)
 792 {
 793         struct pc87360_data *data = pc87360_update_device(dev);
 794         unsigned nr = to_sensor_dev_attr(devattr)->index;
 795 
 796         return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
 797 }
 798 static ssize_t therm_crit_alarm_show(struct device *dev,
 799                                      struct device_attribute *devattr,
 800                                      char *buf)
 801 {
 802         struct pc87360_data *data = pc87360_update_device(dev);
 803         unsigned nr = to_sensor_dev_attr(devattr)->index;
 804 
 805         return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT));
 806 }
 807 
 808 static struct sensor_device_attribute therm_min_alarm[] = {
 809         SENSOR_ATTR_RO(temp4_min_alarm, therm_min_alarm, 0 + 11),
 810         SENSOR_ATTR_RO(temp5_min_alarm, therm_min_alarm, 1 + 11),
 811         SENSOR_ATTR_RO(temp6_min_alarm, therm_min_alarm, 2 + 11),
 812 };
 813 static struct sensor_device_attribute therm_max_alarm[] = {
 814         SENSOR_ATTR_RO(temp4_max_alarm, therm_max_alarm, 0 + 11),
 815         SENSOR_ATTR_RO(temp5_max_alarm, therm_max_alarm, 1 + 11),
 816         SENSOR_ATTR_RO(temp6_max_alarm, therm_max_alarm, 2 + 11),
 817 };
 818 static struct sensor_device_attribute therm_crit_alarm[] = {
 819         SENSOR_ATTR_RO(temp4_crit_alarm, therm_crit_alarm, 0 + 11),
 820         SENSOR_ATTR_RO(temp5_crit_alarm, therm_crit_alarm, 1 + 11),
 821         SENSOR_ATTR_RO(temp6_crit_alarm, therm_crit_alarm, 2 + 11),
 822 };
 823 
 824 #define THERM_UNIT_ATTRS(X) \
 825         &therm_input[X].dev_attr.attr,  \
 826         &therm_status[X].dev_attr.attr, \
 827         &therm_min[X].dev_attr.attr,    \
 828         &therm_max[X].dev_attr.attr,    \
 829         &therm_crit[X].dev_attr.attr,   \
 830         &therm_min_alarm[X].dev_attr.attr, \
 831         &therm_max_alarm[X].dev_attr.attr, \
 832         &therm_crit_alarm[X].dev_attr.attr
 833 
 834 static struct attribute *pc8736x_therm_attr_array[] = {
 835         THERM_UNIT_ATTRS(0),
 836         THERM_UNIT_ATTRS(1),
 837         THERM_UNIT_ATTRS(2),
 838         NULL
 839 };
 840 static const struct attribute_group pc8736x_therm_group = {
 841         .attrs = pc8736x_therm_attr_array,
 842 };
 843 
 844 static ssize_t temp_input_show(struct device *dev,
 845                                struct device_attribute *devattr, char *buf)
 846 {
 847         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 848         struct pc87360_data *data = pc87360_update_device(dev);
 849         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
 850 }
 851 
 852 static ssize_t temp_min_show(struct device *dev,
 853                              struct device_attribute *devattr, char *buf)
 854 {
 855         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 856         struct pc87360_data *data = pc87360_update_device(dev);
 857         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
 858 }
 859 
 860 static ssize_t temp_max_show(struct device *dev,
 861                              struct device_attribute *devattr, char *buf)
 862 {
 863         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 864         struct pc87360_data *data = pc87360_update_device(dev);
 865         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
 866 }
 867 
 868 static ssize_t temp_crit_show(struct device *dev,
 869                               struct device_attribute *devattr, char *buf)
 870 {
 871         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 872         struct pc87360_data *data = pc87360_update_device(dev);
 873         return sprintf(buf, "%d\n",
 874                        TEMP_FROM_REG(data->temp_crit[attr->index]));
 875 }
 876 
 877 static ssize_t temp_status_show(struct device *dev,
 878                                 struct device_attribute *devattr, char *buf)
 879 {
 880         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 881         struct pc87360_data *data = pc87360_update_device(dev);
 882         return sprintf(buf, "%d\n", data->temp_status[attr->index]);
 883 }
 884 
 885 static ssize_t temp_min_store(struct device *dev,
 886                               struct device_attribute *devattr,
 887                               const char *buf, size_t count)
 888 {
 889         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 890         struct pc87360_data *data = dev_get_drvdata(dev);
 891         long val;
 892         int err;
 893 
 894         err = kstrtol(buf, 10, &val);
 895         if (err)
 896                 return err;
 897 
 898         mutex_lock(&data->update_lock);
 899         data->temp_min[attr->index] = TEMP_TO_REG(val);
 900         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
 901                             data->temp_min[attr->index]);
 902         mutex_unlock(&data->update_lock);
 903         return count;
 904 }
 905 
 906 static ssize_t temp_max_store(struct device *dev,
 907                               struct device_attribute *devattr,
 908                               const char *buf, size_t count)
 909 {
 910         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 911         struct pc87360_data *data = dev_get_drvdata(dev);
 912         long val;
 913         int err;
 914 
 915         err = kstrtol(buf, 10, &val);
 916         if (err)
 917                 return err;
 918 
 919         mutex_lock(&data->update_lock);
 920         data->temp_max[attr->index] = TEMP_TO_REG(val);
 921         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
 922                             data->temp_max[attr->index]);
 923         mutex_unlock(&data->update_lock);
 924         return count;
 925 }
 926 
 927 static ssize_t temp_crit_store(struct device *dev,
 928                                struct device_attribute *devattr,
 929                                const char *buf, size_t count)
 930 {
 931         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 932         struct pc87360_data *data = dev_get_drvdata(dev);
 933         long val;
 934         int err;
 935 
 936         err = kstrtol(buf, 10, &val);
 937         if (err)
 938                 return err;
 939 
 940         mutex_lock(&data->update_lock);
 941         data->temp_crit[attr->index] = TEMP_TO_REG(val);
 942         pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
 943                             data->temp_crit[attr->index]);
 944         mutex_unlock(&data->update_lock);
 945         return count;
 946 }
 947 
 948 static struct sensor_device_attribute temp_input[] = {
 949         SENSOR_ATTR_RO(temp1_input, temp_input, 0),
 950         SENSOR_ATTR_RO(temp2_input, temp_input, 1),
 951         SENSOR_ATTR_RO(temp3_input, temp_input, 2),
 952 };
 953 static struct sensor_device_attribute temp_status[] = {
 954         SENSOR_ATTR_RO(temp1_status, temp_status, 0),
 955         SENSOR_ATTR_RO(temp2_status, temp_status, 1),
 956         SENSOR_ATTR_RO(temp3_status, temp_status, 2),
 957 };
 958 static struct sensor_device_attribute temp_min[] = {
 959         SENSOR_ATTR_RW(temp1_min, temp_min, 0),
 960         SENSOR_ATTR_RW(temp2_min, temp_min, 1),
 961         SENSOR_ATTR_RW(temp3_min, temp_min, 2),
 962 };
 963 static struct sensor_device_attribute temp_max[] = {
 964         SENSOR_ATTR_RW(temp1_max, temp_max, 0),
 965         SENSOR_ATTR_RW(temp2_max, temp_max, 1),
 966         SENSOR_ATTR_RW(temp3_max, temp_max, 2),
 967 };
 968 static struct sensor_device_attribute temp_crit[] = {
 969         SENSOR_ATTR_RW(temp1_crit, temp_crit, 0),
 970         SENSOR_ATTR_RW(temp2_crit, temp_crit, 1),
 971         SENSOR_ATTR_RW(temp3_crit, temp_crit, 2),
 972 };
 973 
 974 static ssize_t alarms_temp_show(struct device *dev,
 975                                 struct device_attribute *attr, char *buf)
 976 {
 977         struct pc87360_data *data = pc87360_update_device(dev);
 978         return sprintf(buf, "%u\n", data->temp_alarms);
 979 }
 980 
 981 static DEVICE_ATTR_RO(alarms_temp);
 982 
 983 /*
 984  * show_temp_min/max_alarm() reads data from the per-channel status
 985  * register (sec 12.3.7), not the temp event status registers (sec
 986  * 12.3.2) that show_temp_alarm() reads (via data->temp_alarms)
 987  */
 988 
 989 static ssize_t temp_min_alarm_show(struct device *dev,
 990                                    struct device_attribute *devattr,
 991                                    char *buf)
 992 {
 993         struct pc87360_data *data = pc87360_update_device(dev);
 994         unsigned nr = to_sensor_dev_attr(devattr)->index;
 995 
 996         return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
 997 }
 998 
 999 static ssize_t temp_max_alarm_show(struct device *dev,
1000                                    struct device_attribute *devattr,
1001                                    char *buf)
1002 {
1003         struct pc87360_data *data = pc87360_update_device(dev);
1004         unsigned nr = to_sensor_dev_attr(devattr)->index;
1005 
1006         return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
1007 }
1008 
1009 static ssize_t temp_crit_alarm_show(struct device *dev,
1010                                     struct device_attribute *devattr,
1011                                     char *buf)
1012 {
1013         struct pc87360_data *data = pc87360_update_device(dev);
1014         unsigned nr = to_sensor_dev_attr(devattr)->index;
1015 
1016         return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
1017 }
1018 
1019 static struct sensor_device_attribute temp_min_alarm[] = {
1020         SENSOR_ATTR_RO(temp1_min_alarm, temp_min_alarm, 0),
1021         SENSOR_ATTR_RO(temp2_min_alarm, temp_min_alarm, 1),
1022         SENSOR_ATTR_RO(temp3_min_alarm, temp_min_alarm, 2),
1023 };
1024 
1025 static struct sensor_device_attribute temp_max_alarm[] = {
1026         SENSOR_ATTR_RO(temp1_max_alarm, temp_max_alarm, 0),
1027         SENSOR_ATTR_RO(temp2_max_alarm, temp_max_alarm, 1),
1028         SENSOR_ATTR_RO(temp3_max_alarm, temp_max_alarm, 2),
1029 };
1030 
1031 static struct sensor_device_attribute temp_crit_alarm[] = {
1032         SENSOR_ATTR_RO(temp1_crit_alarm, temp_crit_alarm, 0),
1033         SENSOR_ATTR_RO(temp2_crit_alarm, temp_crit_alarm, 1),
1034         SENSOR_ATTR_RO(temp3_crit_alarm, temp_crit_alarm, 2),
1035 };
1036 
1037 #define TEMP_FAULT      0x40    /* open diode */
1038 static ssize_t temp_fault_show(struct device *dev,
1039                                struct device_attribute *devattr, char *buf)
1040 {
1041         struct pc87360_data *data = pc87360_update_device(dev);
1042         unsigned nr = to_sensor_dev_attr(devattr)->index;
1043 
1044         return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
1045 }
1046 static struct sensor_device_attribute temp_fault[] = {
1047         SENSOR_ATTR_RO(temp1_fault, temp_fault, 0),
1048         SENSOR_ATTR_RO(temp2_fault, temp_fault, 1),
1049         SENSOR_ATTR_RO(temp3_fault, temp_fault, 2),
1050 };
1051 
1052 #define TEMP_UNIT_ATTRS(X)                      \
1053 {       &temp_input[X].dev_attr.attr,           \
1054         &temp_status[X].dev_attr.attr,          \
1055         &temp_min[X].dev_attr.attr,             \
1056         &temp_max[X].dev_attr.attr,             \
1057         &temp_crit[X].dev_attr.attr,            \
1058         &temp_min_alarm[X].dev_attr.attr,       \
1059         &temp_max_alarm[X].dev_attr.attr,       \
1060         &temp_crit_alarm[X].dev_attr.attr,      \
1061         &temp_fault[X].dev_attr.attr,           \
1062         NULL                                    \
1063 }
1064 
1065 static struct attribute *pc8736x_temp_attr[][10] = {
1066         TEMP_UNIT_ATTRS(0),
1067         TEMP_UNIT_ATTRS(1),
1068         TEMP_UNIT_ATTRS(2)
1069 };
1070 
1071 static const struct attribute_group pc8736x_temp_attr_group[] = {
1072         { .attrs = pc8736x_temp_attr[0] },
1073         { .attrs = pc8736x_temp_attr[1] },
1074         { .attrs = pc8736x_temp_attr[2] }
1075 };
1076 
1077 static ssize_t name_show(struct device *dev,
1078                         struct device_attribute *devattr, char *buf)
1079 {
1080         struct pc87360_data *data = dev_get_drvdata(dev);
1081         return sprintf(buf, "%s\n", data->name);
1082 }
1083 
1084 static DEVICE_ATTR_RO(name);
1085 
1086 /*
1087  * Device detection, registration and update
1088  */
1089 
1090 static int __init pc87360_find(int sioaddr, u8 *devid,
1091                                unsigned short *addresses)
1092 {
1093         u16 val;
1094         int i;
1095         int nrdev; /* logical device count */
1096 
1097         /* No superio_enter */
1098 
1099         /* Identify device */
1100         val = force_id ? force_id : superio_inb(sioaddr, DEVID);
1101         switch (val) {
1102         case 0xE1: /* PC87360 */
1103         case 0xE8: /* PC87363 */
1104         case 0xE4: /* PC87364 */
1105                 nrdev = 1;
1106                 break;
1107         case 0xE5: /* PC87365 */
1108         case 0xE9: /* PC87366 */
1109                 nrdev = 3;
1110                 break;
1111         default:
1112                 superio_exit(sioaddr);
1113                 return -ENODEV;
1114         }
1115         /* Remember the device id */
1116         *devid = val;
1117 
1118         for (i = 0; i < nrdev; i++) {
1119                 /* select logical device */
1120                 superio_outb(sioaddr, DEV, logdev[i]);
1121 
1122                 val = superio_inb(sioaddr, ACT);
1123                 if (!(val & 0x01)) {
1124                         pr_info("Device 0x%02x not activated\n", logdev[i]);
1125                         continue;
1126                 }
1127 
1128                 val = (superio_inb(sioaddr, BASE) << 8)
1129                     | superio_inb(sioaddr, BASE + 1);
1130                 if (!val) {
1131                         pr_info("Base address not set for device 0x%02x\n",
1132                                 logdev[i]);
1133                         continue;
1134                 }
1135 
1136                 addresses[i] = val;
1137 
1138                 if (i == 0) { /* Fans */
1139                         confreg[0] = superio_inb(sioaddr, 0xF0);
1140                         confreg[1] = superio_inb(sioaddr, 0xF1);
1141 
1142                         pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 1,
1143                                  (confreg[0] >> 2) & 1, (confreg[0] >> 3) & 1,
1144                                  (confreg[0] >> 4) & 1);
1145                         pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 2,
1146                                  (confreg[0] >> 5) & 1, (confreg[0] >> 6) & 1,
1147                                  (confreg[0] >> 7) & 1);
1148                         pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 3,
1149                                  confreg[1] & 1, (confreg[1] >> 1) & 1,
1150                                  (confreg[1] >> 2) & 1);
1151                 } else if (i == 1) { /* Voltages */
1152                         /* Are we using thermistors? */
1153                         if (*devid == 0xE9) { /* PC87366 */
1154                                 /*
1155                                  * These registers are not logical-device
1156                                  * specific, just that we won't need them if
1157                                  * we don't use the VLM device
1158                                  */
1159                                 confreg[2] = superio_inb(sioaddr, 0x2B);
1160                                 confreg[3] = superio_inb(sioaddr, 0x25);
1161 
1162                                 if (confreg[2] & 0x40) {
1163                                         pr_info("Using thermistors for temperature monitoring\n");
1164                                 }
1165                                 if (confreg[3] & 0xE0) {
1166                                         pr_info("VID inputs routed (mode %u)\n",
1167                                                 confreg[3] >> 5);
1168                                 }
1169                         }
1170                 }
1171         }
1172 
1173         superio_exit(sioaddr);
1174         return 0;
1175 }
1176 
1177 static void pc87360_remove_files(struct device *dev)
1178 {
1179         int i;
1180 
1181         device_remove_file(dev, &dev_attr_name);
1182         device_remove_file(dev, &dev_attr_alarms_temp);
1183         for (i = 0; i < ARRAY_SIZE(pc8736x_temp_attr_group); i++)
1184                 sysfs_remove_group(&dev->kobj, &pc8736x_temp_attr_group[i]);
1185         for (i = 0; i < ARRAY_SIZE(pc8736x_fan_attr_group); i++) {
1186                 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_attr_group[i]);
1187                 device_remove_file(dev, &pwm[i].dev_attr);
1188         }
1189         sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1190         sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1191 }
1192 
1193 static int pc87360_probe(struct platform_device *pdev)
1194 {
1195         int i;
1196         struct pc87360_data *data;
1197         int err = 0;
1198         const char *name;
1199         int use_thermistors = 0;
1200         struct device *dev = &pdev->dev;
1201 
1202         data = devm_kzalloc(dev, sizeof(struct pc87360_data), GFP_KERNEL);
1203         if (!data)
1204                 return -ENOMEM;
1205 
1206         switch (devid) {
1207         default:
1208                 name = "pc87360";
1209                 data->fannr = 2;
1210                 break;
1211         case 0xe8:
1212                 name = "pc87363";
1213                 data->fannr = 2;
1214                 break;
1215         case 0xe4:
1216                 name = "pc87364";
1217                 data->fannr = 3;
1218                 break;
1219         case 0xe5:
1220                 name = "pc87365";
1221                 data->fannr = extra_isa[0] ? 3 : 0;
1222                 data->innr = extra_isa[1] ? 11 : 0;
1223                 data->tempnr = extra_isa[2] ? 2 : 0;
1224                 break;
1225         case 0xe9:
1226                 name = "pc87366";
1227                 data->fannr = extra_isa[0] ? 3 : 0;
1228                 data->innr = extra_isa[1] ? 14 : 0;
1229                 data->tempnr = extra_isa[2] ? 3 : 0;
1230                 break;
1231         }
1232 
1233         data->name = name;
1234         mutex_init(&data->lock);
1235         mutex_init(&data->update_lock);
1236         platform_set_drvdata(pdev, data);
1237 
1238         for (i = 0; i < LDNI_MAX; i++) {
1239                 data->address[i] = extra_isa[i];
1240                 if (data->address[i]
1241                  && !devm_request_region(dev, extra_isa[i], PC87360_EXTENT,
1242                                          pc87360_driver.driver.name)) {
1243                         dev_err(dev,
1244                                 "Region 0x%x-0x%x already in use!\n",
1245                                 extra_isa[i], extra_isa[i]+PC87360_EXTENT-1);
1246                         return -EBUSY;
1247                 }
1248         }
1249 
1250         /* Retrieve the fans configuration from Super-I/O space */
1251         if (data->fannr)
1252                 data->fan_conf = confreg[0] | (confreg[1] << 8);
1253 
1254         /*
1255          * Use the correct reference voltage
1256          * Unless both the VLM and the TMS logical devices agree to
1257          * use an external Vref, the internal one is used.
1258          */
1259         if (data->innr) {
1260                 i = pc87360_read_value(data, LD_IN, NO_BANK,
1261                                        PC87365_REG_IN_CONFIG);
1262                 if (data->tempnr) {
1263                         i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
1264                                                 PC87365_REG_TEMP_CONFIG);
1265                 }
1266                 data->in_vref = (i&0x02) ? 3025 : 2966;
1267                 dev_dbg(dev, "Using %s reference voltage\n",
1268                         (i&0x02) ? "external" : "internal");
1269 
1270                 data->vid_conf = confreg[3];
1271                 data->vrm = vid_which_vrm();
1272         }
1273 
1274         /* Fan clock dividers may be needed before any data is read */
1275         for (i = 0; i < data->fannr; i++) {
1276                 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1277                         data->fan_status[i] = pc87360_read_value(data,
1278                                               LD_FAN, NO_BANK,
1279                                               PC87360_REG_FAN_STATUS(i));
1280         }
1281 
1282         if (init > 0) {
1283                 if (devid == 0xe9 && data->address[1]) /* PC87366 */
1284                         use_thermistors = confreg[2] & 0x40;
1285 
1286                 pc87360_init_device(pdev, use_thermistors);
1287         }
1288 
1289         /* Register all-or-nothing sysfs groups */
1290 
1291         if (data->innr) {
1292                 err = sysfs_create_group(&dev->kobj, &pc8736x_vin_group);
1293                 if (err)
1294                         goto error;
1295         }
1296 
1297         if (data->innr == 14) {
1298                 err = sysfs_create_group(&dev->kobj, &pc8736x_therm_group);
1299                 if (err)
1300                         goto error;
1301         }
1302 
1303         /* create device attr-files for varying sysfs groups */
1304 
1305         if (data->tempnr) {
1306                 for (i = 0; i < data->tempnr; i++) {
1307                         err = sysfs_create_group(&dev->kobj,
1308                                                  &pc8736x_temp_attr_group[i]);
1309                         if (err)
1310                                 goto error;
1311                 }
1312                 err = device_create_file(dev, &dev_attr_alarms_temp);
1313                 if (err)
1314                         goto error;
1315         }
1316 
1317         for (i = 0; i < data->fannr; i++) {
1318                 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1319                         err = sysfs_create_group(&dev->kobj,
1320                                                  &pc8736x_fan_attr_group[i]);
1321                         if (err)
1322                                 goto error;
1323                 }
1324                 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) {
1325                         err = device_create_file(dev, &pwm[i].dev_attr);
1326                         if (err)
1327                                 goto error;
1328                 }
1329         }
1330 
1331         err = device_create_file(dev, &dev_attr_name);
1332         if (err)
1333                 goto error;
1334 
1335         data->hwmon_dev = hwmon_device_register(dev);
1336         if (IS_ERR(data->hwmon_dev)) {
1337                 err = PTR_ERR(data->hwmon_dev);
1338                 goto error;
1339         }
1340         return 0;
1341 
1342 error:
1343         pc87360_remove_files(dev);
1344         return err;
1345 }
1346 
1347 static int pc87360_remove(struct platform_device *pdev)
1348 {
1349         struct pc87360_data *data = platform_get_drvdata(pdev);
1350 
1351         hwmon_device_unregister(data->hwmon_dev);
1352         pc87360_remove_files(&pdev->dev);
1353 
1354         return 0;
1355 }
1356 
1357 /*
1358  * ldi is the logical device index
1359  * bank is for voltages and temperatures only
1360  */
1361 static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1362                               u8 reg)
1363 {
1364         int res;
1365 
1366         mutex_lock(&(data->lock));
1367         if (bank != NO_BANK)
1368                 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1369         res = inb_p(data->address[ldi] + reg);
1370         mutex_unlock(&(data->lock));
1371 
1372         return res;
1373 }
1374 
1375 static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1376                                 u8 reg, u8 value)
1377 {
1378         mutex_lock(&(data->lock));
1379         if (bank != NO_BANK)
1380                 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1381         outb_p(value, data->address[ldi] + reg);
1382         mutex_unlock(&(data->lock));
1383 }
1384 
1385 /* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
1386 #define CHAN_CNVRTD     0x80    /* new data ready */
1387 #define CHAN_ENA        0x01    /* enabled channel (temp or vin) */
1388 #define CHAN_ALM_ENA    0x10    /* propagate to alarms-reg ?? (chk val!) */
1389 #define CHAN_READY      (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
1390 
1391 #define TEMP_OTS_OE     0x20    /* OTS Output Enable */
1392 #define VIN_RW1C_MASK   (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN)   /* 0x87 */
1393 #define TEMP_RW1C_MASK  (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
1394 
1395 static void pc87360_init_device(struct platform_device *pdev,
1396                                 int use_thermistors)
1397 {
1398         struct pc87360_data *data = platform_get_drvdata(pdev);
1399         int i, nr;
1400         const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1401         const u8 init_temp[3] = { 2, 2, 1 };
1402         u8 reg;
1403 
1404         if (init >= 2 && data->innr) {
1405                 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1406                                          PC87365_REG_IN_CONVRATE);
1407                 dev_info(&pdev->dev,
1408                          "VLM conversion set to 1s period, 160us delay\n");
1409                 pc87360_write_value(data, LD_IN, NO_BANK,
1410                                     PC87365_REG_IN_CONVRATE,
1411                                     (reg & 0xC0) | 0x11);
1412         }
1413 
1414         nr = data->innr < 11 ? data->innr : 11;
1415         for (i = 0; i < nr; i++) {
1416                 reg = pc87360_read_value(data, LD_IN, i,
1417                                          PC87365_REG_IN_STATUS);
1418                 dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg);
1419                 if (init >= init_in[i]) {
1420                         /* Forcibly enable voltage channel */
1421                         if (!(reg & CHAN_ENA)) {
1422                                 dev_dbg(&pdev->dev, "Forcibly enabling in%d\n",
1423                                         i);
1424                                 pc87360_write_value(data, LD_IN, i,
1425                                                     PC87365_REG_IN_STATUS,
1426                                                     (reg & 0x68) | 0x87);
1427                         }
1428                 }
1429         }
1430 
1431         /*
1432          * We can't blindly trust the Super-I/O space configuration bit,
1433          * most BIOS won't set it properly
1434          */
1435         dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors);
1436         for (i = 11; i < data->innr; i++) {
1437                 reg = pc87360_read_value(data, LD_IN, i,
1438                                          PC87365_REG_TEMP_STATUS);
1439                 use_thermistors = use_thermistors || (reg & CHAN_ENA);
1440                 /* thermistors are temp[4-6], measured on vin[11-14] */
1441                 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg);
1442         }
1443         dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors);
1444 
1445         i = use_thermistors ? 2 : 0;
1446         for (; i < data->tempnr; i++) {
1447                 reg = pc87360_read_value(data, LD_TEMP, i,
1448                                          PC87365_REG_TEMP_STATUS);
1449                 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i + 1, reg);
1450                 if (init >= init_temp[i]) {
1451                         /* Forcibly enable temperature channel */
1452                         if (!(reg & CHAN_ENA)) {
1453                                 dev_dbg(&pdev->dev,
1454                                         "Forcibly enabling temp%d\n", i + 1);
1455                                 pc87360_write_value(data, LD_TEMP, i,
1456                                                     PC87365_REG_TEMP_STATUS,
1457                                                     0xCF);
1458                         }
1459                 }
1460         }
1461 
1462         if (use_thermistors) {
1463                 for (i = 11; i < data->innr; i++) {
1464                         if (init >= init_in[i]) {
1465                                 /*
1466                                  * The pin may already be used by thermal
1467                                  * diodes
1468                                  */
1469                                 reg = pc87360_read_value(data, LD_TEMP,
1470                                       (i - 11) / 2, PC87365_REG_TEMP_STATUS);
1471                                 if (reg & CHAN_ENA) {
1472                                         dev_dbg(&pdev->dev,
1473                         "Skipping temp%d, pin already in use by temp%d\n",
1474                                                 i - 7, (i - 11) / 2);
1475                                         continue;
1476                                 }
1477 
1478                                 /* Forcibly enable thermistor channel */
1479                                 reg = pc87360_read_value(data, LD_IN, i,
1480                                                          PC87365_REG_IN_STATUS);
1481                                 if (!(reg & CHAN_ENA)) {
1482                                         dev_dbg(&pdev->dev,
1483                                                 "Forcibly enabling temp%d\n",
1484                                                 i - 7);
1485                                         pc87360_write_value(data, LD_IN, i,
1486                                                 PC87365_REG_TEMP_STATUS,
1487                                                 (reg & 0x60) | 0x8F);
1488                                 }
1489                         }
1490                 }
1491         }
1492 
1493         if (data->innr) {
1494                 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1495                                          PC87365_REG_IN_CONFIG);
1496                 dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg);
1497                 if (reg & CHAN_ENA) {
1498                         dev_dbg(&pdev->dev,
1499                                 "Forcibly enabling monitoring (VLM)\n");
1500                         pc87360_write_value(data, LD_IN, NO_BANK,
1501                                             PC87365_REG_IN_CONFIG,
1502                                             reg & 0xFE);
1503                 }
1504         }
1505 
1506         if (data->tempnr) {
1507                 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1508                                          PC87365_REG_TEMP_CONFIG);
1509                 dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg);
1510                 if (reg & CHAN_ENA) {
1511                         dev_dbg(&pdev->dev,
1512                                 "Forcibly enabling monitoring (TMS)\n");
1513                         pc87360_write_value(data, LD_TEMP, NO_BANK,
1514                                             PC87365_REG_TEMP_CONFIG,
1515                                             reg & 0xFE);
1516                 }
1517 
1518                 if (init >= 2) {
1519                         /* Chip config as documented by National Semi. */
1520                         pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1521                         /*
1522                          * We voluntarily omit the bank here, in case the
1523                          * sequence itself matters. It shouldn't be a problem,
1524                          * since nobody else is supposed to access the
1525                          * device at that point.
1526                          */
1527                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1528                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1529                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1530                         pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1531                 }
1532         }
1533 }
1534 
1535 static void pc87360_autodiv(struct device *dev, int nr)
1536 {
1537         struct pc87360_data *data = dev_get_drvdata(dev);
1538         u8 old_min = data->fan_min[nr];
1539 
1540         /* Increase clock divider if needed and possible */
1541         if ((data->fan_status[nr] & 0x04) /* overflow flag */
1542          || (data->fan[nr] >= 224)) { /* next to overflow */
1543                 if ((data->fan_status[nr] & 0x60) != 0x60) {
1544                         data->fan_status[nr] += 0x20;
1545                         data->fan_min[nr] >>= 1;
1546                         data->fan[nr] >>= 1;
1547                         dev_dbg(dev,
1548                                 "Increasing clock divider to %d for fan %d\n",
1549                                 FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1);
1550                 }
1551         } else {
1552                 /* Decrease clock divider if possible */
1553                 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1554                  && data->fan[nr] < 85 /* bad accuracy */
1555                  && (data->fan_status[nr] & 0x60) != 0x00) {
1556                         data->fan_status[nr] -= 0x20;
1557                         data->fan_min[nr] <<= 1;
1558                         data->fan[nr] <<= 1;
1559                         dev_dbg(dev,
1560                                 "Decreasing clock divider to %d for fan %d\n",
1561                                 FAN_DIV_FROM_REG(data->fan_status[nr]),
1562                                 nr + 1);
1563                 }
1564         }
1565 
1566         /* Write new fan min if it changed */
1567         if (old_min != data->fan_min[nr]) {
1568                 pc87360_write_value(data, LD_FAN, NO_BANK,
1569                                     PC87360_REG_FAN_MIN(nr),
1570                                     data->fan_min[nr]);
1571         }
1572 }
1573 
1574 static struct pc87360_data *pc87360_update_device(struct device *dev)
1575 {
1576         struct pc87360_data *data = dev_get_drvdata(dev);
1577         u8 i;
1578 
1579         mutex_lock(&data->update_lock);
1580 
1581         if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1582                 dev_dbg(dev, "Data update\n");
1583 
1584                 /* Fans */
1585                 for (i = 0; i < data->fannr; i++) {
1586                         if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1587                                 data->fan_status[i] =
1588                                         pc87360_read_value(data, LD_FAN,
1589                                         NO_BANK, PC87360_REG_FAN_STATUS(i));
1590                                 data->fan[i] = pc87360_read_value(data, LD_FAN,
1591                                                NO_BANK, PC87360_REG_FAN(i));
1592                                 data->fan_min[i] = pc87360_read_value(data,
1593                                                    LD_FAN, NO_BANK,
1594                                                    PC87360_REG_FAN_MIN(i));
1595                                 /* Change clock divider if needed */
1596                                 pc87360_autodiv(dev, i);
1597                                 /* Clear bits and write new divider */
1598                                 pc87360_write_value(data, LD_FAN, NO_BANK,
1599                                                     PC87360_REG_FAN_STATUS(i),
1600                                                     data->fan_status[i]);
1601                         }
1602                         if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1603                                 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1604                                                NO_BANK, PC87360_REG_PWM(i));
1605                 }
1606 
1607                 /* Voltages */
1608                 for (i = 0; i < data->innr; i++) {
1609                         data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1610                                              PC87365_REG_IN_STATUS);
1611                         /* Clear bits */
1612                         pc87360_write_value(data, LD_IN, i,
1613                                             PC87365_REG_IN_STATUS,
1614                                             data->in_status[i]);
1615                         if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
1616                                 data->in[i] = pc87360_read_value(data, LD_IN,
1617                                               i, PC87365_REG_IN);
1618                         }
1619                         if (data->in_status[i] & CHAN_ENA) {
1620                                 data->in_min[i] = pc87360_read_value(data,
1621                                                   LD_IN, i,
1622                                                   PC87365_REG_IN_MIN);
1623                                 data->in_max[i] = pc87360_read_value(data,
1624                                                   LD_IN, i,
1625                                                   PC87365_REG_IN_MAX);
1626                                 if (i >= 11)
1627                                         data->in_crit[i-11] =
1628                                                 pc87360_read_value(data, LD_IN,
1629                                                 i, PC87365_REG_TEMP_CRIT);
1630                         }
1631                 }
1632                 if (data->innr) {
1633                         data->in_alarms = pc87360_read_value(data, LD_IN,
1634                                           NO_BANK, PC87365_REG_IN_ALARMS1)
1635                                         | ((pc87360_read_value(data, LD_IN,
1636                                             NO_BANK, PC87365_REG_IN_ALARMS2)
1637                                             & 0x07) << 8);
1638                         data->vid = (data->vid_conf & 0xE0) ?
1639                                     pc87360_read_value(data, LD_IN,
1640                                     NO_BANK, PC87365_REG_VID) : 0x1F;
1641                 }
1642 
1643                 /* Temperatures */
1644                 for (i = 0; i < data->tempnr; i++) {
1645                         data->temp_status[i] = pc87360_read_value(data,
1646                                                LD_TEMP, i,
1647                                                PC87365_REG_TEMP_STATUS);
1648                         /* Clear bits */
1649                         pc87360_write_value(data, LD_TEMP, i,
1650                                             PC87365_REG_TEMP_STATUS,
1651                                             data->temp_status[i]);
1652                         if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
1653                                 data->temp[i] = pc87360_read_value(data,
1654                                                 LD_TEMP, i,
1655                                                 PC87365_REG_TEMP);
1656                         }
1657                         if (data->temp_status[i] & CHAN_ENA) {
1658                                 data->temp_min[i] = pc87360_read_value(data,
1659                                                     LD_TEMP, i,
1660                                                     PC87365_REG_TEMP_MIN);
1661                                 data->temp_max[i] = pc87360_read_value(data,
1662                                                     LD_TEMP, i,
1663                                                     PC87365_REG_TEMP_MAX);
1664                                 data->temp_crit[i] = pc87360_read_value(data,
1665                                                      LD_TEMP, i,
1666                                                      PC87365_REG_TEMP_CRIT);
1667                         }
1668                 }
1669                 if (data->tempnr) {
1670                         data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1671                                             NO_BANK, PC87365_REG_TEMP_ALARMS)
1672                                             & 0x3F;
1673                 }
1674 
1675                 data->last_updated = jiffies;
1676                 data->valid = 1;
1677         }
1678 
1679         mutex_unlock(&data->update_lock);
1680 
1681         return data;
1682 }
1683 
1684 static int __init pc87360_device_add(unsigned short address)
1685 {
1686         struct resource res[3];
1687         int err, i, res_count;
1688 
1689         pdev = platform_device_alloc("pc87360", address);
1690         if (!pdev) {
1691                 err = -ENOMEM;
1692                 pr_err("Device allocation failed\n");
1693                 goto exit;
1694         }
1695 
1696         memset(res, 0, 3 * sizeof(struct resource));
1697         res_count = 0;
1698         for (i = 0; i < 3; i++) {
1699                 if (!extra_isa[i])
1700                         continue;
1701                 res[res_count].start = extra_isa[i];
1702                 res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1;
1703                 res[res_count].name = "pc87360",
1704                 res[res_count].flags = IORESOURCE_IO,
1705 
1706                 err = acpi_check_resource_conflict(&res[res_count]);
1707                 if (err)
1708                         goto exit_device_put;
1709 
1710                 res_count++;
1711         }
1712 
1713         err = platform_device_add_resources(pdev, res, res_count);
1714         if (err) {
1715                 pr_err("Device resources addition failed (%d)\n", err);
1716                 goto exit_device_put;
1717         }
1718 
1719         err = platform_device_add(pdev);
1720         if (err) {
1721                 pr_err("Device addition failed (%d)\n", err);
1722                 goto exit_device_put;
1723         }
1724 
1725         return 0;
1726 
1727 exit_device_put:
1728         platform_device_put(pdev);
1729 exit:
1730         return err;
1731 }
1732 
1733 static int __init pc87360_init(void)
1734 {
1735         int err, i;
1736         unsigned short address = 0;
1737 
1738         if (pc87360_find(0x2e, &devid, extra_isa)
1739          && pc87360_find(0x4e, &devid, extra_isa)) {
1740                 pr_warn("PC8736x not detected, module not inserted\n");
1741                 return -ENODEV;
1742         }
1743 
1744         /* Arbitrarily pick one of the addresses */
1745         for (i = 0; i < 3; i++) {
1746                 if (extra_isa[i] != 0x0000) {
1747                         address = extra_isa[i];
1748                         break;
1749                 }
1750         }
1751 
1752         if (address == 0x0000) {
1753                 pr_warn("No active logical device, module not inserted\n");
1754                 return -ENODEV;
1755         }
1756 
1757         err = platform_driver_register(&pc87360_driver);
1758         if (err)
1759                 goto exit;
1760 
1761         /* Sets global pdev as a side effect */
1762         err = pc87360_device_add(address);
1763         if (err)
1764                 goto exit_driver;
1765 
1766         return 0;
1767 
1768  exit_driver:
1769         platform_driver_unregister(&pc87360_driver);
1770  exit:
1771         return err;
1772 }
1773 
1774 static void __exit pc87360_exit(void)
1775 {
1776         platform_device_unregister(pdev);
1777         platform_driver_unregister(&pc87360_driver);
1778 }
1779 
1780 
1781 MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>");
1782 MODULE_DESCRIPTION("PC8736x hardware monitor");
1783 MODULE_LICENSE("GPL");
1784 
1785 module_init(pc87360_init);
1786 module_exit(pc87360_exit);

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