drivers/hwmon/f71805f.c

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
superio_inb
superio_inw
superio_select
superio_enter
superio_exit
in_from_reg
in_to_reg
in0_from_reg
in0_to_reg
fan_from_reg
fan_to_reg
pwm_freq_from_reg
pwm_freq_to_reg
pwm_mode_from_reg
temp_from_reg
temp_to_reg
f71805f_read8
f71805f_write8
f71805f_read16
f71805f_write16
f71805f_update_device
show_in0
show_in0_max
show_in0_min
set_in0_max
set_in0_min
show_in
show_in_max
show_in_min
set_in_max
set_in_min
show_fan
show_fan_min
show_fan_target
set_fan_min
set_fan_target
show_pwm
show_pwm_enable
show_pwm_freq
show_pwm_mode
set_pwm
set_pwm_enable
set_pwm_freq
show_pwm_auto_point_temp
set_pwm_auto_point_temp
show_pwm_auto_point_fan
set_pwm_auto_point_fan
show_temp
show_temp_max
show_temp_hyst
show_temp_type
set_temp_max
set_temp_hyst
alarms_in_show
alarms_fan_show
alarms_temp_show
show_alarm
name_show
f71805f_init_device
f71805f_probe
f71805f_remove
f71805f_device_add
f71805f_find
f71805f_init
f71805f_exit
   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * f71805f.c - driver for the Fintek F71805F/FG and F71872F/FG Super-I/O
   4  *             chips integrated hardware monitoring features
   5  * Copyright (C) 2005-2006  Jean Delvare <jdelvare@suse.de>
   6  *
   7  * The F71805F/FG is a LPC Super-I/O chip made by Fintek. It integrates
   8  * complete hardware monitoring features: voltage, fan and temperature
   9  * sensors, and manual and automatic fan speed control.
  10  *
  11  * The F71872F/FG is almost the same, with two more voltages monitored,
  12  * and 6 VID inputs.
  13  *
  14  * The F71806F/FG is essentially the same as the F71872F/FG. It even has
  15  * the same chip ID, so the driver can't differentiate between.
  16  */
  17 
  18 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  19 
  20 #include <linux/module.h>
  21 #include <linux/init.h>
  22 #include <linux/slab.h>
  23 #include <linux/jiffies.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/hwmon.h>
  26 #include <linux/hwmon-sysfs.h>
  27 #include <linux/err.h>
  28 #include <linux/mutex.h>
  29 #include <linux/sysfs.h>
  30 #include <linux/ioport.h>
  31 #include <linux/acpi.h>
  32 #include <linux/io.h>
  33 
  34 static unsigned short force_id;
  35 module_param(force_id, ushort, 0);
  36 MODULE_PARM_DESC(force_id, "Override the detected device ID");
  37 
  38 static struct platform_device *pdev;
  39 
  40 #define DRVNAME "f71805f"
  41 enum kinds { f71805f, f71872f };
  42 
  43 /*
  44  * Super-I/O constants and functions
  45  */
  46 
  47 #define F71805F_LD_HWM          0x04
  48 
  49 #define SIO_REG_LDSEL           0x07    /* Logical device select */
  50 #define SIO_REG_DEVID           0x20    /* Device ID (2 bytes) */
  51 #define SIO_REG_DEVREV          0x22    /* Device revision */
  52 #define SIO_REG_MANID           0x23    /* Fintek ID (2 bytes) */
  53 #define SIO_REG_FNSEL1          0x29    /* Multi Function Select 1 (F71872F) */
  54 #define SIO_REG_ENABLE          0x30    /* Logical device enable */
  55 #define SIO_REG_ADDR            0x60    /* Logical device address (2 bytes) */
  56 
  57 #define SIO_FINTEK_ID           0x1934
  58 #define SIO_F71805F_ID          0x0406
  59 #define SIO_F71872F_ID          0x0341
  60 
  61 static inline int
  62 superio_inb(int base, int reg)
  63 {
  64         outb(reg, base);
  65         return inb(base + 1);
  66 }
  67 
  68 static int
  69 superio_inw(int base, int reg)
  70 {
  71         int val;
  72         outb(reg++, base);
  73         val = inb(base + 1) << 8;
  74         outb(reg, base);
  75         val |= inb(base + 1);
  76         return val;
  77 }
  78 
  79 static inline void
  80 superio_select(int base, int ld)
  81 {
  82         outb(SIO_REG_LDSEL, base);
  83         outb(ld, base + 1);
  84 }
  85 
  86 static inline int
  87 superio_enter(int base)
  88 {
  89         if (!request_muxed_region(base, 2, DRVNAME))
  90                 return -EBUSY;
  91 
  92         outb(0x87, base);
  93         outb(0x87, base);
  94 
  95         return 0;
  96 }
  97 
  98 static inline void
  99 superio_exit(int base)
 100 {
 101         outb(0xaa, base);
 102         release_region(base, 2);
 103 }
 104 
 105 /*
 106  * ISA constants
 107  */
 108 
 109 #define REGION_LENGTH           8
 110 #define ADDR_REG_OFFSET         5
 111 #define DATA_REG_OFFSET         6
 112 
 113 /*
 114  * Registers
 115  */
 116 
 117 /* in nr from 0 to 10 (8-bit values) */
 118 #define F71805F_REG_IN(nr)              (0x10 + (nr))
 119 #define F71805F_REG_IN_HIGH(nr)         ((nr) < 10 ? 0x40 + 2 * (nr) : 0x2E)
 120 #define F71805F_REG_IN_LOW(nr)          ((nr) < 10 ? 0x41 + 2 * (nr) : 0x2F)
 121 /* fan nr from 0 to 2 (12-bit values, two registers) */
 122 #define F71805F_REG_FAN(nr)             (0x20 + 2 * (nr))
 123 #define F71805F_REG_FAN_LOW(nr)         (0x28 + 2 * (nr))
 124 #define F71805F_REG_FAN_TARGET(nr)      (0x69 + 16 * (nr))
 125 #define F71805F_REG_FAN_CTRL(nr)        (0x60 + 16 * (nr))
 126 #define F71805F_REG_PWM_FREQ(nr)        (0x63 + 16 * (nr))
 127 #define F71805F_REG_PWM_DUTY(nr)        (0x6B + 16 * (nr))
 128 /* temp nr from 0 to 2 (8-bit values) */
 129 #define F71805F_REG_TEMP(nr)            (0x1B + (nr))
 130 #define F71805F_REG_TEMP_HIGH(nr)       (0x54 + 2 * (nr))
 131 #define F71805F_REG_TEMP_HYST(nr)       (0x55 + 2 * (nr))
 132 #define F71805F_REG_TEMP_MODE           0x01
 133 /* pwm/fan pwmnr from 0 to 2, auto point apnr from 0 to 2 */
 134 /* map Fintek numbers to our numbers as follows: 9->0, 5->1, 1->2 */
 135 #define F71805F_REG_PWM_AUTO_POINT_TEMP(pwmnr, apnr) \
 136                                         (0xA0 + 0x10 * (pwmnr) + (2 - (apnr)))
 137 #define F71805F_REG_PWM_AUTO_POINT_FAN(pwmnr, apnr) \
 138                                         (0xA4 + 0x10 * (pwmnr) + \
 139                                                 2 * (2 - (apnr)))
 140 
 141 #define F71805F_REG_START               0x00
 142 /* status nr from 0 to 2 */
 143 #define F71805F_REG_STATUS(nr)          (0x36 + (nr))
 144 
 145 /* individual register bits */
 146 #define FAN_CTRL_DC_MODE                0x10
 147 #define FAN_CTRL_LATCH_FULL             0x08
 148 #define FAN_CTRL_MODE_MASK              0x03
 149 #define FAN_CTRL_MODE_SPEED             0x00
 150 #define FAN_CTRL_MODE_TEMPERATURE       0x01
 151 #define FAN_CTRL_MODE_MANUAL            0x02
 152 
 153 /*
 154  * Data structures and manipulation thereof
 155  */
 156 
 157 struct f71805f_auto_point {
 158         u8 temp[3];
 159         u16 fan[3];
 160 };
 161 
 162 struct f71805f_data {
 163         unsigned short addr;
 164         const char *name;
 165         struct device *hwmon_dev;
 166 
 167         struct mutex update_lock;
 168         char valid;             /* !=0 if following fields are valid */
 169         unsigned long last_updated;     /* In jiffies */
 170         unsigned long last_limits;      /* In jiffies */
 171 
 172         /* Register values */
 173         u8 in[11];
 174         u8 in_high[11];
 175         u8 in_low[11];
 176         u16 has_in;
 177         u16 fan[3];
 178         u16 fan_low[3];
 179         u16 fan_target[3];
 180         u8 fan_ctrl[3];
 181         u8 pwm[3];
 182         u8 pwm_freq[3];
 183         u8 temp[3];
 184         u8 temp_high[3];
 185         u8 temp_hyst[3];
 186         u8 temp_mode;
 187         unsigned long alarms;
 188         struct f71805f_auto_point auto_points[3];
 189 };
 190 
 191 struct f71805f_sio_data {
 192         enum kinds kind;
 193         u8 fnsel1;
 194 };
 195 
 196 static inline long in_from_reg(u8 reg)
 197 {
 198         return reg * 8;
 199 }
 200 
 201 /* The 2 least significant bits are not used */
 202 static inline u8 in_to_reg(long val)
 203 {
 204         if (val <= 0)
 205                 return 0;
 206         if (val >= 2016)
 207                 return 0xfc;
 208         return ((val + 16) / 32) << 2;
 209 }
 210 
 211 /* in0 is downscaled by a factor 2 internally */
 212 static inline long in0_from_reg(u8 reg)
 213 {
 214         return reg * 16;
 215 }
 216 
 217 static inline u8 in0_to_reg(long val)
 218 {
 219         if (val <= 0)
 220                 return 0;
 221         if (val >= 4032)
 222                 return 0xfc;
 223         return ((val + 32) / 64) << 2;
 224 }
 225 
 226 /* The 4 most significant bits are not used */
 227 static inline long fan_from_reg(u16 reg)
 228 {
 229         reg &= 0xfff;
 230         if (!reg || reg == 0xfff)
 231                 return 0;
 232         return 1500000 / reg;
 233 }
 234 
 235 static inline u16 fan_to_reg(long rpm)
 236 {
 237         /*
 238          * If the low limit is set below what the chip can measure,
 239          * store the largest possible 12-bit value in the registers,
 240          * so that no alarm will ever trigger.
 241          */
 242         if (rpm < 367)
 243                 return 0xfff;
 244         return 1500000 / rpm;
 245 }
 246 
 247 static inline unsigned long pwm_freq_from_reg(u8 reg)
 248 {
 249         unsigned long clock = (reg & 0x80) ? 48000000UL : 1000000UL;
 250 
 251         reg &= 0x7f;
 252         if (reg == 0)
 253                 reg++;
 254         return clock / (reg << 8);
 255 }
 256 
 257 static inline u8 pwm_freq_to_reg(unsigned long val)
 258 {
 259         if (val >= 187500)      /* The highest we can do */
 260                 return 0x80;
 261         if (val >= 1475)        /* Use 48 MHz clock */
 262                 return 0x80 | (48000000UL / (val << 8));
 263         if (val < 31)           /* The lowest we can do */
 264                 return 0x7f;
 265         else                    /* Use 1 MHz clock */
 266                 return 1000000UL / (val << 8);
 267 }
 268 
 269 static inline int pwm_mode_from_reg(u8 reg)
 270 {
 271         return !(reg & FAN_CTRL_DC_MODE);
 272 }
 273 
 274 static inline long temp_from_reg(u8 reg)
 275 {
 276         return reg * 1000;
 277 }
 278 
 279 static inline u8 temp_to_reg(long val)
 280 {
 281         if (val <= 0)
 282                 return 0;
 283         if (val >= 1000 * 0xff)
 284                 return 0xff;
 285         return (val + 500) / 1000;
 286 }
 287 
 288 /*
 289  * Device I/O access
 290  */
 291 
 292 /* Must be called with data->update_lock held, except during initialization */
 293 static u8 f71805f_read8(struct f71805f_data *data, u8 reg)
 294 {
 295         outb(reg, data->addr + ADDR_REG_OFFSET);
 296         return inb(data->addr + DATA_REG_OFFSET);
 297 }
 298 
 299 /* Must be called with data->update_lock held, except during initialization */
 300 static void f71805f_write8(struct f71805f_data *data, u8 reg, u8 val)
 301 {
 302         outb(reg, data->addr + ADDR_REG_OFFSET);
 303         outb(val, data->addr + DATA_REG_OFFSET);
 304 }
 305 
 306 /*
 307  * It is important to read the MSB first, because doing so latches the
 308  * value of the LSB, so we are sure both bytes belong to the same value.
 309  * Must be called with data->update_lock held, except during initialization
 310  */
 311 static u16 f71805f_read16(struct f71805f_data *data, u8 reg)
 312 {
 313         u16 val;
 314 
 315         outb(reg, data->addr + ADDR_REG_OFFSET);
 316         val = inb(data->addr + DATA_REG_OFFSET) << 8;
 317         outb(++reg, data->addr + ADDR_REG_OFFSET);
 318         val |= inb(data->addr + DATA_REG_OFFSET);
 319 
 320         return val;
 321 }
 322 
 323 /* Must be called with data->update_lock held, except during initialization */
 324 static void f71805f_write16(struct f71805f_data *data, u8 reg, u16 val)
 325 {
 326         outb(reg, data->addr + ADDR_REG_OFFSET);
 327         outb(val >> 8, data->addr + DATA_REG_OFFSET);
 328         outb(++reg, data->addr + ADDR_REG_OFFSET);
 329         outb(val & 0xff, data->addr + DATA_REG_OFFSET);
 330 }
 331 
 332 static struct f71805f_data *f71805f_update_device(struct device *dev)
 333 {
 334         struct f71805f_data *data = dev_get_drvdata(dev);
 335         int nr, apnr;
 336 
 337         mutex_lock(&data->update_lock);
 338 
 339         /* Limit registers cache is refreshed after 60 seconds */
 340         if (time_after(jiffies, data->last_updated + 60 * HZ)
 341          || !data->valid) {
 342                 for (nr = 0; nr < 11; nr++) {
 343                         if (!(data->has_in & (1 << nr)))
 344                                 continue;
 345                         data->in_high[nr] = f71805f_read8(data,
 346                                             F71805F_REG_IN_HIGH(nr));
 347                         data->in_low[nr] = f71805f_read8(data,
 348                                            F71805F_REG_IN_LOW(nr));
 349                 }
 350                 for (nr = 0; nr < 3; nr++) {
 351                         data->fan_low[nr] = f71805f_read16(data,
 352                                             F71805F_REG_FAN_LOW(nr));
 353                         data->fan_target[nr] = f71805f_read16(data,
 354                                                F71805F_REG_FAN_TARGET(nr));
 355                         data->pwm_freq[nr] = f71805f_read8(data,
 356                                              F71805F_REG_PWM_FREQ(nr));
 357                 }
 358                 for (nr = 0; nr < 3; nr++) {
 359                         data->temp_high[nr] = f71805f_read8(data,
 360                                               F71805F_REG_TEMP_HIGH(nr));
 361                         data->temp_hyst[nr] = f71805f_read8(data,
 362                                               F71805F_REG_TEMP_HYST(nr));
 363                 }
 364                 data->temp_mode = f71805f_read8(data, F71805F_REG_TEMP_MODE);
 365                 for (nr = 0; nr < 3; nr++) {
 366                         for (apnr = 0; apnr < 3; apnr++) {
 367                                 data->auto_points[nr].temp[apnr] =
 368                                         f71805f_read8(data,
 369                                         F71805F_REG_PWM_AUTO_POINT_TEMP(nr,
 370                                                                         apnr));
 371                                 data->auto_points[nr].fan[apnr] =
 372                                         f71805f_read16(data,
 373                                         F71805F_REG_PWM_AUTO_POINT_FAN(nr,
 374                                                                        apnr));
 375                         }
 376                 }
 377 
 378                 data->last_limits = jiffies;
 379         }
 380 
 381         /* Measurement registers cache is refreshed after 1 second */
 382         if (time_after(jiffies, data->last_updated + HZ)
 383          || !data->valid) {
 384                 for (nr = 0; nr < 11; nr++) {
 385                         if (!(data->has_in & (1 << nr)))
 386                                 continue;
 387                         data->in[nr] = f71805f_read8(data,
 388                                        F71805F_REG_IN(nr));
 389                 }
 390                 for (nr = 0; nr < 3; nr++) {
 391                         data->fan[nr] = f71805f_read16(data,
 392                                         F71805F_REG_FAN(nr));
 393                         data->fan_ctrl[nr] = f71805f_read8(data,
 394                                              F71805F_REG_FAN_CTRL(nr));
 395                         data->pwm[nr] = f71805f_read8(data,
 396                                         F71805F_REG_PWM_DUTY(nr));
 397                 }
 398                 for (nr = 0; nr < 3; nr++) {
 399                         data->temp[nr] = f71805f_read8(data,
 400                                          F71805F_REG_TEMP(nr));
 401                 }
 402                 data->alarms = f71805f_read8(data, F71805F_REG_STATUS(0))
 403                         + (f71805f_read8(data, F71805F_REG_STATUS(1)) << 8)
 404                         + (f71805f_read8(data, F71805F_REG_STATUS(2)) << 16);
 405 
 406                 data->last_updated = jiffies;
 407                 data->valid = 1;
 408         }
 409 
 410         mutex_unlock(&data->update_lock);
 411 
 412         return data;
 413 }
 414 
 415 /*
 416  * Sysfs interface
 417  */
 418 
 419 static ssize_t show_in0(struct device *dev, struct device_attribute *devattr,
 420                         char *buf)
 421 {
 422         struct f71805f_data *data = f71805f_update_device(dev);
 423         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 424         int nr = attr->index;
 425 
 426         return sprintf(buf, "%ld\n", in0_from_reg(data->in[nr]));
 427 }
 428 
 429 static ssize_t show_in0_max(struct device *dev, struct device_attribute
 430                             *devattr, char *buf)
 431 {
 432         struct f71805f_data *data = f71805f_update_device(dev);
 433         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 434         int nr = attr->index;
 435 
 436         return sprintf(buf, "%ld\n", in0_from_reg(data->in_high[nr]));
 437 }
 438 
 439 static ssize_t show_in0_min(struct device *dev, struct device_attribute
 440                             *devattr, char *buf)
 441 {
 442         struct f71805f_data *data = f71805f_update_device(dev);
 443         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 444         int nr = attr->index;
 445 
 446         return sprintf(buf, "%ld\n", in0_from_reg(data->in_low[nr]));
 447 }
 448 
 449 static ssize_t set_in0_max(struct device *dev, struct device_attribute
 450                            *devattr, const char *buf, size_t count)
 451 {
 452         struct f71805f_data *data = dev_get_drvdata(dev);
 453         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 454         int nr = attr->index;
 455         long val;
 456         int err;
 457 
 458         err = kstrtol(buf, 10, &val);
 459         if (err)
 460                 return err;
 461 
 462         mutex_lock(&data->update_lock);
 463         data->in_high[nr] = in0_to_reg(val);
 464         f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]);
 465         mutex_unlock(&data->update_lock);
 466 
 467         return count;
 468 }
 469 
 470 static ssize_t set_in0_min(struct device *dev, struct device_attribute
 471                            *devattr, const char *buf, size_t count)
 472 {
 473         struct f71805f_data *data = dev_get_drvdata(dev);
 474         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 475         int nr = attr->index;
 476         long val;
 477         int err;
 478 
 479         err = kstrtol(buf, 10, &val);
 480         if (err)
 481                 return err;
 482 
 483         mutex_lock(&data->update_lock);
 484         data->in_low[nr] = in0_to_reg(val);
 485         f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]);
 486         mutex_unlock(&data->update_lock);
 487 
 488         return count;
 489 }
 490 
 491 static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
 492                        char *buf)
 493 {
 494         struct f71805f_data *data = f71805f_update_device(dev);
 495         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 496         int nr = attr->index;
 497 
 498         return sprintf(buf, "%ld\n", in_from_reg(data->in[nr]));
 499 }
 500 
 501 static ssize_t show_in_max(struct device *dev, struct device_attribute
 502                            *devattr, char *buf)
 503 {
 504         struct f71805f_data *data = f71805f_update_device(dev);
 505         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 506         int nr = attr->index;
 507 
 508         return sprintf(buf, "%ld\n", in_from_reg(data->in_high[nr]));
 509 }
 510 
 511 static ssize_t show_in_min(struct device *dev, struct device_attribute
 512                            *devattr, char *buf)
 513 {
 514         struct f71805f_data *data = f71805f_update_device(dev);
 515         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 516         int nr = attr->index;
 517 
 518         return sprintf(buf, "%ld\n", in_from_reg(data->in_low[nr]));
 519 }
 520 
 521 static ssize_t set_in_max(struct device *dev, struct device_attribute
 522                           *devattr, const char *buf, size_t count)
 523 {
 524         struct f71805f_data *data = dev_get_drvdata(dev);
 525         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 526         int nr = attr->index;
 527         long val;
 528         int err;
 529 
 530         err = kstrtol(buf, 10, &val);
 531         if (err)
 532                 return err;
 533 
 534         mutex_lock(&data->update_lock);
 535         data->in_high[nr] = in_to_reg(val);
 536         f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]);
 537         mutex_unlock(&data->update_lock);
 538 
 539         return count;
 540 }
 541 
 542 static ssize_t set_in_min(struct device *dev, struct device_attribute
 543                           *devattr, const char *buf, size_t count)
 544 {
 545         struct f71805f_data *data = dev_get_drvdata(dev);
 546         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 547         int nr = attr->index;
 548         long val;
 549         int err;
 550 
 551         err = kstrtol(buf, 10, &val);
 552         if (err)
 553                 return err;
 554 
 555         mutex_lock(&data->update_lock);
 556         data->in_low[nr] = in_to_reg(val);
 557         f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]);
 558         mutex_unlock(&data->update_lock);
 559 
 560         return count;
 561 }
 562 
 563 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
 564                         char *buf)
 565 {
 566         struct f71805f_data *data = f71805f_update_device(dev);
 567         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 568         int nr = attr->index;
 569 
 570         return sprintf(buf, "%ld\n", fan_from_reg(data->fan[nr]));
 571 }
 572 
 573 static ssize_t show_fan_min(struct device *dev, struct device_attribute
 574                             *devattr, char *buf)
 575 {
 576         struct f71805f_data *data = f71805f_update_device(dev);
 577         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 578         int nr = attr->index;
 579 
 580         return sprintf(buf, "%ld\n", fan_from_reg(data->fan_low[nr]));
 581 }
 582 
 583 static ssize_t show_fan_target(struct device *dev, struct device_attribute
 584                                *devattr, char *buf)
 585 {
 586         struct f71805f_data *data = f71805f_update_device(dev);
 587         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 588         int nr = attr->index;
 589 
 590         return sprintf(buf, "%ld\n", fan_from_reg(data->fan_target[nr]));
 591 }
 592 
 593 static ssize_t set_fan_min(struct device *dev, struct device_attribute
 594                            *devattr, const char *buf, size_t count)
 595 {
 596         struct f71805f_data *data = dev_get_drvdata(dev);
 597         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 598         int nr = attr->index;
 599         long val;
 600         int err;
 601 
 602         err = kstrtol(buf, 10, &val);
 603         if (err)
 604                 return err;
 605 
 606         mutex_lock(&data->update_lock);
 607         data->fan_low[nr] = fan_to_reg(val);
 608         f71805f_write16(data, F71805F_REG_FAN_LOW(nr), data->fan_low[nr]);
 609         mutex_unlock(&data->update_lock);
 610 
 611         return count;
 612 }
 613 
 614 static ssize_t set_fan_target(struct device *dev, struct device_attribute
 615                               *devattr, const char *buf, size_t count)
 616 {
 617         struct f71805f_data *data = dev_get_drvdata(dev);
 618         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 619         int nr = attr->index;
 620         long val;
 621         int err;
 622 
 623         err = kstrtol(buf, 10, &val);
 624         if (err)
 625                 return err;
 626 
 627         mutex_lock(&data->update_lock);
 628         data->fan_target[nr] = fan_to_reg(val);
 629         f71805f_write16(data, F71805F_REG_FAN_TARGET(nr),
 630                         data->fan_target[nr]);
 631         mutex_unlock(&data->update_lock);
 632 
 633         return count;
 634 }
 635 
 636 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
 637                         char *buf)
 638 {
 639         struct f71805f_data *data = f71805f_update_device(dev);
 640         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 641         int nr = attr->index;
 642 
 643         return sprintf(buf, "%d\n", (int)data->pwm[nr]);
 644 }
 645 
 646 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
 647                                *devattr, char *buf)
 648 {
 649         struct f71805f_data *data = f71805f_update_device(dev);
 650         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 651         int nr = attr->index;
 652         int mode;
 653 
 654         switch (data->fan_ctrl[nr] & FAN_CTRL_MODE_MASK) {
 655         case FAN_CTRL_MODE_SPEED:
 656                 mode = 3;
 657                 break;
 658         case FAN_CTRL_MODE_TEMPERATURE:
 659                 mode = 2;
 660                 break;
 661         default: /* MANUAL */
 662                 mode = 1;
 663         }
 664 
 665         return sprintf(buf, "%d\n", mode);
 666 }
 667 
 668 static ssize_t show_pwm_freq(struct device *dev, struct device_attribute
 669                              *devattr, char *buf)
 670 {
 671         struct f71805f_data *data = f71805f_update_device(dev);
 672         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 673         int nr = attr->index;
 674 
 675         return sprintf(buf, "%lu\n", pwm_freq_from_reg(data->pwm_freq[nr]));
 676 }
 677 
 678 static ssize_t show_pwm_mode(struct device *dev, struct device_attribute
 679                              *devattr, char *buf)
 680 {
 681         struct f71805f_data *data = f71805f_update_device(dev);
 682         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 683         int nr = attr->index;
 684 
 685         return sprintf(buf, "%d\n", pwm_mode_from_reg(data->fan_ctrl[nr]));
 686 }
 687 
 688 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
 689                        const char *buf, size_t count)
 690 {
 691         struct f71805f_data *data = dev_get_drvdata(dev);
 692         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 693         int nr = attr->index;
 694         unsigned long val;
 695         int err;
 696 
 697         err = kstrtoul(buf, 10, &val);
 698         if (err)
 699                 return err;
 700 
 701         if (val > 255)
 702                 return -EINVAL;
 703 
 704         mutex_lock(&data->update_lock);
 705         data->pwm[nr] = val;
 706         f71805f_write8(data, F71805F_REG_PWM_DUTY(nr), data->pwm[nr]);
 707         mutex_unlock(&data->update_lock);
 708 
 709         return count;
 710 }
 711 
 712 static struct attribute *f71805f_attr_pwm[];
 713 
 714 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
 715                               *devattr, const char *buf, size_t count)
 716 {
 717         struct f71805f_data *data = dev_get_drvdata(dev);
 718         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 719         int nr = attr->index;
 720         u8 reg;
 721         unsigned long val;
 722         int err;
 723 
 724         err = kstrtoul(buf, 10, &val);
 725         if (err)
 726                 return err;
 727 
 728         if (val < 1 || val > 3)
 729                 return -EINVAL;
 730 
 731         if (val > 1) { /* Automatic mode, user can't set PWM value */
 732                 if (sysfs_chmod_file(&dev->kobj, f71805f_attr_pwm[nr],
 733                                      S_IRUGO))
 734                         dev_dbg(dev, "chmod -w pwm%d failed\n", nr + 1);
 735         }
 736 
 737         mutex_lock(&data->update_lock);
 738         reg = f71805f_read8(data, F71805F_REG_FAN_CTRL(nr))
 739             & ~FAN_CTRL_MODE_MASK;
 740         switch (val) {
 741         case 1:
 742                 reg |= FAN_CTRL_MODE_MANUAL;
 743                 break;
 744         case 2:
 745                 reg |= FAN_CTRL_MODE_TEMPERATURE;
 746                 break;
 747         case 3:
 748                 reg |= FAN_CTRL_MODE_SPEED;
 749                 break;
 750         }
 751         data->fan_ctrl[nr] = reg;
 752         f71805f_write8(data, F71805F_REG_FAN_CTRL(nr), reg);
 753         mutex_unlock(&data->update_lock);
 754 
 755         if (val == 1) { /* Manual mode, user can set PWM value */
 756                 if (sysfs_chmod_file(&dev->kobj, f71805f_attr_pwm[nr],
 757                                      S_IRUGO | S_IWUSR))
 758                         dev_dbg(dev, "chmod +w pwm%d failed\n", nr + 1);
 759         }
 760 
 761         return count;
 762 }
 763 
 764 static ssize_t set_pwm_freq(struct device *dev, struct device_attribute
 765                             *devattr, const char *buf, size_t count)
 766 {
 767         struct f71805f_data *data = dev_get_drvdata(dev);
 768         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 769         int nr = attr->index;
 770         unsigned long val;
 771         int err;
 772 
 773         err = kstrtoul(buf, 10, &val);
 774         if (err)
 775                 return err;
 776 
 777         mutex_lock(&data->update_lock);
 778         data->pwm_freq[nr] = pwm_freq_to_reg(val);
 779         f71805f_write8(data, F71805F_REG_PWM_FREQ(nr), data->pwm_freq[nr]);
 780         mutex_unlock(&data->update_lock);
 781 
 782         return count;
 783 }
 784 
 785 static ssize_t show_pwm_auto_point_temp(struct device *dev,
 786                                         struct device_attribute *devattr,
 787                                         char *buf)
 788 {
 789         struct f71805f_data *data = dev_get_drvdata(dev);
 790         struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
 791         int pwmnr = attr->nr;
 792         int apnr = attr->index;
 793 
 794         return sprintf(buf, "%ld\n",
 795                        temp_from_reg(data->auto_points[pwmnr].temp[apnr]));
 796 }
 797 
 798 static ssize_t set_pwm_auto_point_temp(struct device *dev,
 799                                        struct device_attribute *devattr,
 800                                        const char *buf, size_t count)
 801 {
 802         struct f71805f_data *data = dev_get_drvdata(dev);
 803         struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
 804         int pwmnr = attr->nr;
 805         int apnr = attr->index;
 806         unsigned long val;
 807         int err;
 808 
 809         err = kstrtoul(buf, 10, &val);
 810         if (err)
 811                 return err;
 812 
 813         mutex_lock(&data->update_lock);
 814         data->auto_points[pwmnr].temp[apnr] = temp_to_reg(val);
 815         f71805f_write8(data, F71805F_REG_PWM_AUTO_POINT_TEMP(pwmnr, apnr),
 816                        data->auto_points[pwmnr].temp[apnr]);
 817         mutex_unlock(&data->update_lock);
 818 
 819         return count;
 820 }
 821 
 822 static ssize_t show_pwm_auto_point_fan(struct device *dev,
 823                                        struct device_attribute *devattr,
 824                                        char *buf)
 825 {
 826         struct f71805f_data *data = dev_get_drvdata(dev);
 827         struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
 828         int pwmnr = attr->nr;
 829         int apnr = attr->index;
 830 
 831         return sprintf(buf, "%ld\n",
 832                        fan_from_reg(data->auto_points[pwmnr].fan[apnr]));
 833 }
 834 
 835 static ssize_t set_pwm_auto_point_fan(struct device *dev,
 836                                       struct device_attribute *devattr,
 837                                       const char *buf, size_t count)
 838 {
 839         struct f71805f_data *data = dev_get_drvdata(dev);
 840         struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
 841         int pwmnr = attr->nr;
 842         int apnr = attr->index;
 843         unsigned long val;
 844         int err;
 845 
 846         err = kstrtoul(buf, 10, &val);
 847         if (err)
 848                 return err;
 849 
 850         mutex_lock(&data->update_lock);
 851         data->auto_points[pwmnr].fan[apnr] = fan_to_reg(val);
 852         f71805f_write16(data, F71805F_REG_PWM_AUTO_POINT_FAN(pwmnr, apnr),
 853                         data->auto_points[pwmnr].fan[apnr]);
 854         mutex_unlock(&data->update_lock);
 855 
 856         return count;
 857 }
 858 
 859 static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
 860                          char *buf)
 861 {
 862         struct f71805f_data *data = f71805f_update_device(dev);
 863         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 864         int nr = attr->index;
 865 
 866         return sprintf(buf, "%ld\n", temp_from_reg(data->temp[nr]));
 867 }
 868 
 869 static ssize_t show_temp_max(struct device *dev, struct device_attribute
 870                              *devattr, char *buf)
 871 {
 872         struct f71805f_data *data = f71805f_update_device(dev);
 873         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 874         int nr = attr->index;
 875 
 876         return sprintf(buf, "%ld\n", temp_from_reg(data->temp_high[nr]));
 877 }
 878 
 879 static ssize_t show_temp_hyst(struct device *dev, struct device_attribute
 880                               *devattr, char *buf)
 881 {
 882         struct f71805f_data *data = f71805f_update_device(dev);
 883         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 884         int nr = attr->index;
 885 
 886         return sprintf(buf, "%ld\n", temp_from_reg(data->temp_hyst[nr]));
 887 }
 888 
 889 static ssize_t show_temp_type(struct device *dev, struct device_attribute
 890                               *devattr, char *buf)
 891 {
 892         struct f71805f_data *data = f71805f_update_device(dev);
 893         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 894         int nr = attr->index;
 895 
 896         /* 3 is diode, 4 is thermistor */
 897         return sprintf(buf, "%u\n", (data->temp_mode & (1 << nr)) ? 3 : 4);
 898 }
 899 
 900 static ssize_t set_temp_max(struct device *dev, struct device_attribute
 901                             *devattr, const char *buf, size_t count)
 902 {
 903         struct f71805f_data *data = dev_get_drvdata(dev);
 904         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 905         int nr = attr->index;
 906         long val;
 907         int err;
 908 
 909         err = kstrtol(buf, 10, &val);
 910         if (err)
 911                 return err;
 912 
 913         mutex_lock(&data->update_lock);
 914         data->temp_high[nr] = temp_to_reg(val);
 915         f71805f_write8(data, F71805F_REG_TEMP_HIGH(nr), data->temp_high[nr]);
 916         mutex_unlock(&data->update_lock);
 917 
 918         return count;
 919 }
 920 
 921 static ssize_t set_temp_hyst(struct device *dev, struct device_attribute
 922                              *devattr, const char *buf, size_t count)
 923 {
 924         struct f71805f_data *data = dev_get_drvdata(dev);
 925         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 926         int nr = attr->index;
 927         long val;
 928         int err;
 929 
 930         err = kstrtol(buf, 10, &val);
 931         if (err)
 932                 return err;
 933 
 934         mutex_lock(&data->update_lock);
 935         data->temp_hyst[nr] = temp_to_reg(val);
 936         f71805f_write8(data, F71805F_REG_TEMP_HYST(nr), data->temp_hyst[nr]);
 937         mutex_unlock(&data->update_lock);
 938 
 939         return count;
 940 }
 941 
 942 static ssize_t alarms_in_show(struct device *dev, struct device_attribute
 943                               *devattr, char *buf)
 944 {
 945         struct f71805f_data *data = f71805f_update_device(dev);
 946 
 947         return sprintf(buf, "%lu\n", data->alarms & 0x7ff);
 948 }
 949 
 950 static ssize_t alarms_fan_show(struct device *dev, struct device_attribute
 951                                *devattr, char *buf)
 952 {
 953         struct f71805f_data *data = f71805f_update_device(dev);
 954 
 955         return sprintf(buf, "%lu\n", (data->alarms >> 16) & 0x07);
 956 }
 957 
 958 static ssize_t alarms_temp_show(struct device *dev, struct device_attribute
 959                                 *devattr, char *buf)
 960 {
 961         struct f71805f_data *data = f71805f_update_device(dev);
 962 
 963         return sprintf(buf, "%lu\n", (data->alarms >> 11) & 0x07);
 964 }
 965 
 966 static ssize_t show_alarm(struct device *dev, struct device_attribute
 967                           *devattr, char *buf)
 968 {
 969         struct f71805f_data *data = f71805f_update_device(dev);
 970         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
 971         int bitnr = attr->index;
 972 
 973         return sprintf(buf, "%lu\n", (data->alarms >> bitnr) & 1);
 974 }
 975 
 976 static ssize_t name_show(struct device *dev, struct device_attribute
 977                          *devattr, char *buf)
 978 {
 979         struct f71805f_data *data = dev_get_drvdata(dev);
 980 
 981         return sprintf(buf, "%s\n", data->name);
 982 }
 983 
 984 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in0, NULL, 0);
 985 static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR,
 986                           show_in0_max, set_in0_max, 0);
 987 static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR,
 988                           show_in0_min, set_in0_min, 0);
 989 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
 990 static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO | S_IWUSR,
 991                           show_in_max, set_in_max, 1);
 992 static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO | S_IWUSR,
 993                           show_in_min, set_in_min, 1);
 994 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
 995 static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO | S_IWUSR,
 996                           show_in_max, set_in_max, 2);
 997 static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO | S_IWUSR,
 998                           show_in_min, set_in_min, 2);
 999 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
1000 static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO | S_IWUSR,
1001                           show_in_max, set_in_max, 3);
1002 static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO | S_IWUSR,
1003                           show_in_min, set_in_min, 3);
1004 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
1005 static SENSOR_DEVICE_ATTR(in4_max, S_IRUGO | S_IWUSR,
1006                           show_in_max, set_in_max, 4);
1007 static SENSOR_DEVICE_ATTR(in4_min, S_IRUGO | S_IWUSR,
1008                           show_in_min, set_in_min, 4);
1009 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
1010 static SENSOR_DEVICE_ATTR(in5_max, S_IRUGO | S_IWUSR,
1011                           show_in_max, set_in_max, 5);
1012 static SENSOR_DEVICE_ATTR(in5_min, S_IRUGO | S_IWUSR,
1013                           show_in_min, set_in_min, 5);
1014 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
1015 static SENSOR_DEVICE_ATTR(in6_max, S_IRUGO | S_IWUSR,
1016                           show_in_max, set_in_max, 6);
1017 static SENSOR_DEVICE_ATTR(in6_min, S_IRUGO | S_IWUSR,
1018                           show_in_min, set_in_min, 6);
1019 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
1020 static SENSOR_DEVICE_ATTR(in7_max, S_IRUGO | S_IWUSR,
1021                           show_in_max, set_in_max, 7);
1022 static SENSOR_DEVICE_ATTR(in7_min, S_IRUGO | S_IWUSR,
1023                           show_in_min, set_in_min, 7);
1024 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
1025 static SENSOR_DEVICE_ATTR(in8_max, S_IRUGO | S_IWUSR,
1026                           show_in_max, set_in_max, 8);
1027 static SENSOR_DEVICE_ATTR(in8_min, S_IRUGO | S_IWUSR,
1028                           show_in_min, set_in_min, 8);
1029 static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_in0, NULL, 9);
1030 static SENSOR_DEVICE_ATTR(in9_max, S_IRUGO | S_IWUSR,
1031                           show_in0_max, set_in0_max, 9);
1032 static SENSOR_DEVICE_ATTR(in9_min, S_IRUGO | S_IWUSR,
1033                           show_in0_min, set_in0_min, 9);
1034 static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_in0, NULL, 10);
1035 static SENSOR_DEVICE_ATTR(in10_max, S_IRUGO | S_IWUSR,
1036                           show_in0_max, set_in0_max, 10);
1037 static SENSOR_DEVICE_ATTR(in10_min, S_IRUGO | S_IWUSR,
1038                           show_in0_min, set_in0_min, 10);
1039 
1040 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
1041 static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR,
1042                           show_fan_min, set_fan_min, 0);
1043 static SENSOR_DEVICE_ATTR(fan1_target, S_IRUGO | S_IWUSR,
1044                           show_fan_target, set_fan_target, 0);
1045 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
1046 static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR,
1047                           show_fan_min, set_fan_min, 1);
1048 static SENSOR_DEVICE_ATTR(fan2_target, S_IRUGO | S_IWUSR,
1049                           show_fan_target, set_fan_target, 1);
1050 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
1051 static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO | S_IWUSR,
1052                           show_fan_min, set_fan_min, 2);
1053 static SENSOR_DEVICE_ATTR(fan3_target, S_IRUGO | S_IWUSR,
1054                           show_fan_target, set_fan_target, 2);
1055 
1056 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
1057 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR,
1058                     show_temp_max, set_temp_max, 0);
1059 static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
1060                     show_temp_hyst, set_temp_hyst, 0);
1061 static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0);
1062 static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
1063 static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR,
1064                     show_temp_max, set_temp_max, 1);
1065 static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR,
1066                     show_temp_hyst, set_temp_hyst, 1);
1067 static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1);
1068 static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
1069 static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO | S_IWUSR,
1070                     show_temp_max, set_temp_max, 2);
1071 static SENSOR_DEVICE_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR,
1072                     show_temp_hyst, set_temp_hyst, 2);
1073 static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2);
1074 
1075 /*
1076  * pwm (value) files are created read-only, write permission is
1077  * then added or removed dynamically as needed
1078  */
1079 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO, show_pwm, set_pwm, 0);
1080 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
1081                           show_pwm_enable, set_pwm_enable, 0);
1082 static SENSOR_DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR,
1083                           show_pwm_freq, set_pwm_freq, 0);
1084 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, show_pwm_mode, NULL, 0);
1085 static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO, show_pwm, set_pwm, 1);
1086 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
1087                           show_pwm_enable, set_pwm_enable, 1);
1088 static SENSOR_DEVICE_ATTR(pwm2_freq, S_IRUGO | S_IWUSR,
1089                           show_pwm_freq, set_pwm_freq, 1);
1090 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, show_pwm_mode, NULL, 1);
1091 static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO, show_pwm, set_pwm, 2);
1092 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR,
1093                           show_pwm_enable, set_pwm_enable, 2);
1094 static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO | S_IWUSR,
1095                           show_pwm_freq, set_pwm_freq, 2);
1096 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IRUGO, show_pwm_mode, NULL, 2);
1097 
1098 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR,
1099                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1100                             0, 0);
1101 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_fan, S_IRUGO | S_IWUSR,
1102                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1103                             0, 0);
1104 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR,
1105                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1106                             0, 1);
1107 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_fan, S_IRUGO | S_IWUSR,
1108                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1109                             0, 1);
1110 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR,
1111                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1112                             0, 2);
1113 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_fan, S_IRUGO | S_IWUSR,
1114                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1115                             0, 2);
1116 
1117 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR,
1118                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1119                             1, 0);
1120 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_fan, S_IRUGO | S_IWUSR,
1121                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1122                             1, 0);
1123 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR,
1124                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1125                             1, 1);
1126 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_fan, S_IRUGO | S_IWUSR,
1127                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1128                             1, 1);
1129 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR,
1130                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1131                             1, 2);
1132 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_fan, S_IRUGO | S_IWUSR,
1133                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1134                             1, 2);
1135 
1136 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR,
1137                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1138                             2, 0);
1139 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_fan, S_IRUGO | S_IWUSR,
1140                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1141                             2, 0);
1142 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR,
1143                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1144                             2, 1);
1145 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_fan, S_IRUGO | S_IWUSR,
1146                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1147                             2, 1);
1148 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR,
1149                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1150                             2, 2);
1151 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_fan, S_IRUGO | S_IWUSR,
1152                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1153                             2, 2);
1154 
1155 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1156 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1157 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
1158 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
1159 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 4);
1160 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 5);
1161 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6);
1162 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7);
1163 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 8);
1164 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 9);
1165 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 10);
1166 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 11);
1167 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 12);
1168 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13);
1169 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16);
1170 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17);
1171 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18);
1172 static DEVICE_ATTR_RO(alarms_in);
1173 static DEVICE_ATTR_RO(alarms_fan);
1174 static DEVICE_ATTR_RO(alarms_temp);
1175 
1176 static DEVICE_ATTR_RO(name);
1177 
1178 static struct attribute *f71805f_attributes[] = {
1179         &sensor_dev_attr_in0_input.dev_attr.attr,
1180         &sensor_dev_attr_in0_max.dev_attr.attr,
1181         &sensor_dev_attr_in0_min.dev_attr.attr,
1182         &sensor_dev_attr_in1_input.dev_attr.attr,
1183         &sensor_dev_attr_in1_max.dev_attr.attr,
1184         &sensor_dev_attr_in1_min.dev_attr.attr,
1185         &sensor_dev_attr_in2_input.dev_attr.attr,
1186         &sensor_dev_attr_in2_max.dev_attr.attr,
1187         &sensor_dev_attr_in2_min.dev_attr.attr,
1188         &sensor_dev_attr_in3_input.dev_attr.attr,
1189         &sensor_dev_attr_in3_max.dev_attr.attr,
1190         &sensor_dev_attr_in3_min.dev_attr.attr,
1191         &sensor_dev_attr_in5_input.dev_attr.attr,
1192         &sensor_dev_attr_in5_max.dev_attr.attr,
1193         &sensor_dev_attr_in5_min.dev_attr.attr,
1194         &sensor_dev_attr_in6_input.dev_attr.attr,
1195         &sensor_dev_attr_in6_max.dev_attr.attr,
1196         &sensor_dev_attr_in6_min.dev_attr.attr,
1197         &sensor_dev_attr_in7_input.dev_attr.attr,
1198         &sensor_dev_attr_in7_max.dev_attr.attr,
1199         &sensor_dev_attr_in7_min.dev_attr.attr,
1200 
1201         &sensor_dev_attr_fan1_input.dev_attr.attr,
1202         &sensor_dev_attr_fan1_min.dev_attr.attr,
1203         &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1204         &sensor_dev_attr_fan1_target.dev_attr.attr,
1205         &sensor_dev_attr_fan2_input.dev_attr.attr,
1206         &sensor_dev_attr_fan2_min.dev_attr.attr,
1207         &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1208         &sensor_dev_attr_fan2_target.dev_attr.attr,
1209         &sensor_dev_attr_fan3_input.dev_attr.attr,
1210         &sensor_dev_attr_fan3_min.dev_attr.attr,
1211         &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1212         &sensor_dev_attr_fan3_target.dev_attr.attr,
1213 
1214         &sensor_dev_attr_pwm1.dev_attr.attr,
1215         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1216         &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1217         &sensor_dev_attr_pwm2.dev_attr.attr,
1218         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1219         &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1220         &sensor_dev_attr_pwm3.dev_attr.attr,
1221         &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1222         &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1223 
1224         &sensor_dev_attr_temp1_input.dev_attr.attr,
1225         &sensor_dev_attr_temp1_max.dev_attr.attr,
1226         &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1227         &sensor_dev_attr_temp1_type.dev_attr.attr,
1228         &sensor_dev_attr_temp2_input.dev_attr.attr,
1229         &sensor_dev_attr_temp2_max.dev_attr.attr,
1230         &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1231         &sensor_dev_attr_temp2_type.dev_attr.attr,
1232         &sensor_dev_attr_temp3_input.dev_attr.attr,
1233         &sensor_dev_attr_temp3_max.dev_attr.attr,
1234         &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1235         &sensor_dev_attr_temp3_type.dev_attr.attr,
1236 
1237         &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
1238         &sensor_dev_attr_pwm1_auto_point1_fan.dev_attr.attr,
1239         &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
1240         &sensor_dev_attr_pwm1_auto_point2_fan.dev_attr.attr,
1241         &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
1242         &sensor_dev_attr_pwm1_auto_point3_fan.dev_attr.attr,
1243         &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
1244         &sensor_dev_attr_pwm2_auto_point1_fan.dev_attr.attr,
1245         &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
1246         &sensor_dev_attr_pwm2_auto_point2_fan.dev_attr.attr,
1247         &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
1248         &sensor_dev_attr_pwm2_auto_point3_fan.dev_attr.attr,
1249         &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
1250         &sensor_dev_attr_pwm3_auto_point1_fan.dev_attr.attr,
1251         &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
1252         &sensor_dev_attr_pwm3_auto_point2_fan.dev_attr.attr,
1253         &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
1254         &sensor_dev_attr_pwm3_auto_point3_fan.dev_attr.attr,
1255 
1256         &sensor_dev_attr_in0_alarm.dev_attr.attr,
1257         &sensor_dev_attr_in1_alarm.dev_attr.attr,
1258         &sensor_dev_attr_in2_alarm.dev_attr.attr,
1259         &sensor_dev_attr_in3_alarm.dev_attr.attr,
1260         &sensor_dev_attr_in5_alarm.dev_attr.attr,
1261         &sensor_dev_attr_in6_alarm.dev_attr.attr,
1262         &sensor_dev_attr_in7_alarm.dev_attr.attr,
1263         &dev_attr_alarms_in.attr,
1264         &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1265         &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1266         &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1267         &dev_attr_alarms_temp.attr,
1268         &dev_attr_alarms_fan.attr,
1269 
1270         &dev_attr_name.attr,
1271         NULL
1272 };
1273 
1274 static const struct attribute_group f71805f_group = {
1275         .attrs = f71805f_attributes,
1276 };
1277 
1278 static struct attribute *f71805f_attributes_optin[4][5] = {
1279         {
1280                 &sensor_dev_attr_in4_input.dev_attr.attr,
1281                 &sensor_dev_attr_in4_max.dev_attr.attr,
1282                 &sensor_dev_attr_in4_min.dev_attr.attr,
1283                 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1284                 NULL
1285         }, {
1286                 &sensor_dev_attr_in8_input.dev_attr.attr,
1287                 &sensor_dev_attr_in8_max.dev_attr.attr,
1288                 &sensor_dev_attr_in8_min.dev_attr.attr,
1289                 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1290                 NULL
1291         }, {
1292                 &sensor_dev_attr_in9_input.dev_attr.attr,
1293                 &sensor_dev_attr_in9_max.dev_attr.attr,
1294                 &sensor_dev_attr_in9_min.dev_attr.attr,
1295                 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1296                 NULL
1297         }, {
1298                 &sensor_dev_attr_in10_input.dev_attr.attr,
1299                 &sensor_dev_attr_in10_max.dev_attr.attr,
1300                 &sensor_dev_attr_in10_min.dev_attr.attr,
1301                 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1302                 NULL
1303         }
1304 };
1305 
1306 static const struct attribute_group f71805f_group_optin[4] = {
1307         { .attrs = f71805f_attributes_optin[0] },
1308         { .attrs = f71805f_attributes_optin[1] },
1309         { .attrs = f71805f_attributes_optin[2] },
1310         { .attrs = f71805f_attributes_optin[3] },
1311 };
1312 
1313 /*
1314  * We don't include pwm_freq files in the arrays above, because they must be
1315  * created conditionally (only if pwm_mode is 1 == PWM)
1316  */
1317 static struct attribute *f71805f_attributes_pwm_freq[] = {
1318         &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1319         &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1320         &sensor_dev_attr_pwm3_freq.dev_attr.attr,
1321         NULL
1322 };
1323 
1324 static const struct attribute_group f71805f_group_pwm_freq = {
1325         .attrs = f71805f_attributes_pwm_freq,
1326 };
1327 
1328 /* We also need an indexed access to pwmN files to toggle writability */
1329 static struct attribute *f71805f_attr_pwm[] = {
1330         &sensor_dev_attr_pwm1.dev_attr.attr,
1331         &sensor_dev_attr_pwm2.dev_attr.attr,
1332         &sensor_dev_attr_pwm3.dev_attr.attr,
1333 };
1334 
1335 /*
1336  * Device registration and initialization
1337  */
1338 
1339 static void f71805f_init_device(struct f71805f_data *data)
1340 {
1341         u8 reg;
1342         int i;
1343 
1344         reg = f71805f_read8(data, F71805F_REG_START);
1345         if ((reg & 0x41) != 0x01) {
1346                 pr_debug("Starting monitoring operations\n");
1347                 f71805f_write8(data, F71805F_REG_START, (reg | 0x01) & ~0x40);
1348         }
1349 
1350         /*
1351          * Fan monitoring can be disabled. If it is, we won't be polling
1352          * the register values, and won't create the related sysfs files.
1353          */
1354         for (i = 0; i < 3; i++) {
1355                 data->fan_ctrl[i] = f71805f_read8(data,
1356                                                   F71805F_REG_FAN_CTRL(i));
1357                 /*
1358                  * Clear latch full bit, else "speed mode" fan speed control
1359                  * doesn't work
1360                  */
1361                 if (data->fan_ctrl[i] & FAN_CTRL_LATCH_FULL) {
1362                         data->fan_ctrl[i] &= ~FAN_CTRL_LATCH_FULL;
1363                         f71805f_write8(data, F71805F_REG_FAN_CTRL(i),
1364                                        data->fan_ctrl[i]);
1365                 }
1366         }
1367 }
1368 
1369 static int f71805f_probe(struct platform_device *pdev)
1370 {
1371         struct f71805f_sio_data *sio_data = dev_get_platdata(&pdev->dev);
1372         struct f71805f_data *data;
1373         struct resource *res;
1374         int i, err;
1375 
1376         static const char * const names[] = {
1377                 "f71805f",
1378                 "f71872f",
1379         };
1380 
1381         data = devm_kzalloc(&pdev->dev, sizeof(struct f71805f_data),
1382                             GFP_KERNEL);
1383         if (!data)
1384                 return -ENOMEM;
1385 
1386         res = platform_get_resource(pdev, IORESOURCE_IO, 0);
1387         if (!devm_request_region(&pdev->dev, res->start + ADDR_REG_OFFSET, 2,
1388                                  DRVNAME)) {
1389                 dev_err(&pdev->dev, "Failed to request region 0x%lx-0x%lx\n",
1390                         (unsigned long)(res->start + ADDR_REG_OFFSET),
1391                         (unsigned long)(res->start + ADDR_REG_OFFSET + 1));
1392                 return -EBUSY;
1393         }
1394         data->addr = res->start;
1395         data->name = names[sio_data->kind];
1396         mutex_init(&data->update_lock);
1397 
1398         platform_set_drvdata(pdev, data);
1399 
1400         /* Some voltage inputs depend on chip model and configuration */
1401         switch (sio_data->kind) {
1402         case f71805f:
1403                 data->has_in = 0x1ff;
1404                 break;
1405         case f71872f:
1406                 data->has_in = 0x6ef;
1407                 if (sio_data->fnsel1 & 0x01)
1408                         data->has_in |= (1 << 4); /* in4 */
1409                 if (sio_data->fnsel1 & 0x02)
1410                         data->has_in |= (1 << 8); /* in8 */
1411                 break;
1412         }
1413 
1414         /* Initialize the F71805F chip */
1415         f71805f_init_device(data);
1416 
1417         /* Register sysfs interface files */
1418         err = sysfs_create_group(&pdev->dev.kobj, &f71805f_group);
1419         if (err)
1420                 return err;
1421         if (data->has_in & (1 << 4)) { /* in4 */
1422                 err = sysfs_create_group(&pdev->dev.kobj,
1423                                          &f71805f_group_optin[0]);
1424                 if (err)
1425                         goto exit_remove_files;
1426         }
1427         if (data->has_in & (1 << 8)) { /* in8 */
1428                 err = sysfs_create_group(&pdev->dev.kobj,
1429                                          &f71805f_group_optin[1]);
1430                 if (err)
1431                         goto exit_remove_files;
1432         }
1433         if (data->has_in & (1 << 9)) { /* in9 (F71872F/FG only) */
1434                 err = sysfs_create_group(&pdev->dev.kobj,
1435                                          &f71805f_group_optin[2]);
1436                 if (err)
1437                         goto exit_remove_files;
1438         }
1439         if (data->has_in & (1 << 10)) { /* in9 (F71872F/FG only) */
1440                 err = sysfs_create_group(&pdev->dev.kobj,
1441                                          &f71805f_group_optin[3]);
1442                 if (err)
1443                         goto exit_remove_files;
1444         }
1445         for (i = 0; i < 3; i++) {
1446                 /* If control mode is PWM, create pwm_freq file */
1447                 if (!(data->fan_ctrl[i] & FAN_CTRL_DC_MODE)) {
1448                         err = sysfs_create_file(&pdev->dev.kobj,
1449                                                 f71805f_attributes_pwm_freq[i]);
1450                         if (err)
1451                                 goto exit_remove_files;
1452                 }
1453                 /* If PWM is in manual mode, add write permission */
1454                 if (data->fan_ctrl[i] & FAN_CTRL_MODE_MANUAL) {
1455                         err = sysfs_chmod_file(&pdev->dev.kobj,
1456                                                f71805f_attr_pwm[i],
1457                                                S_IRUGO | S_IWUSR);
1458                         if (err) {
1459                                 dev_err(&pdev->dev, "chmod +w pwm%d failed\n",
1460                                         i + 1);
1461                                 goto exit_remove_files;
1462                         }
1463                 }
1464         }
1465 
1466         data->hwmon_dev = hwmon_device_register(&pdev->dev);
1467         if (IS_ERR(data->hwmon_dev)) {
1468                 err = PTR_ERR(data->hwmon_dev);
1469                 dev_err(&pdev->dev, "Class registration failed (%d)\n", err);
1470                 goto exit_remove_files;
1471         }
1472 
1473         return 0;
1474 
1475 exit_remove_files:
1476         sysfs_remove_group(&pdev->dev.kobj, &f71805f_group);
1477         for (i = 0; i < 4; i++)
1478                 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_optin[i]);
1479         sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_pwm_freq);
1480         return err;
1481 }
1482 
1483 static int f71805f_remove(struct platform_device *pdev)
1484 {
1485         struct f71805f_data *data = platform_get_drvdata(pdev);
1486         int i;
1487 
1488         hwmon_device_unregister(data->hwmon_dev);
1489         sysfs_remove_group(&pdev->dev.kobj, &f71805f_group);
1490         for (i = 0; i < 4; i++)
1491                 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_optin[i]);
1492         sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_pwm_freq);
1493 
1494         return 0;
1495 }
1496 
1497 static struct platform_driver f71805f_driver = {
1498         .driver = {
1499                 .name   = DRVNAME,
1500         },
1501         .probe          = f71805f_probe,
1502         .remove         = f71805f_remove,
1503 };
1504 
1505 static int __init f71805f_device_add(unsigned short address,
1506                                      const struct f71805f_sio_data *sio_data)
1507 {
1508         struct resource res = {
1509                 .start  = address,
1510                 .end    = address + REGION_LENGTH - 1,
1511                 .flags  = IORESOURCE_IO,
1512         };
1513         int err;
1514 
1515         pdev = platform_device_alloc(DRVNAME, address);
1516         if (!pdev) {
1517                 err = -ENOMEM;
1518                 pr_err("Device allocation failed\n");
1519                 goto exit;
1520         }
1521 
1522         res.name = pdev->name;
1523         err = acpi_check_resource_conflict(&res);
1524         if (err)
1525                 goto exit_device_put;
1526 
1527         err = platform_device_add_resources(pdev, &res, 1);
1528         if (err) {
1529                 pr_err("Device resource addition failed (%d)\n", err);
1530                 goto exit_device_put;
1531         }
1532 
1533         err = platform_device_add_data(pdev, sio_data,
1534                                        sizeof(struct f71805f_sio_data));
1535         if (err) {
1536                 pr_err("Platform data allocation failed\n");
1537                 goto exit_device_put;
1538         }
1539 
1540         err = platform_device_add(pdev);
1541         if (err) {
1542                 pr_err("Device addition failed (%d)\n", err);
1543                 goto exit_device_put;
1544         }
1545 
1546         return 0;
1547 
1548 exit_device_put:
1549         platform_device_put(pdev);
1550 exit:
1551         return err;
1552 }
1553 
1554 static int __init f71805f_find(int sioaddr, unsigned short *address,
1555                                struct f71805f_sio_data *sio_data)
1556 {
1557         int err;
1558         u16 devid;
1559 
1560         static const char * const names[] = {
1561                 "F71805F/FG",
1562                 "F71872F/FG or F71806F/FG",
1563         };
1564 
1565         err = superio_enter(sioaddr);
1566         if (err)
1567                 return err;
1568 
1569         err = -ENODEV;
1570         devid = superio_inw(sioaddr, SIO_REG_MANID);
1571         if (devid != SIO_FINTEK_ID)
1572                 goto exit;
1573 
1574         devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID);
1575         switch (devid) {
1576         case SIO_F71805F_ID:
1577                 sio_data->kind = f71805f;
1578                 break;
1579         case SIO_F71872F_ID:
1580                 sio_data->kind = f71872f;
1581                 sio_data->fnsel1 = superio_inb(sioaddr, SIO_REG_FNSEL1);
1582                 break;
1583         default:
1584                 pr_info("Unsupported Fintek device, skipping\n");
1585                 goto exit;
1586         }
1587 
1588         superio_select(sioaddr, F71805F_LD_HWM);
1589         if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
1590                 pr_warn("Device not activated, skipping\n");
1591                 goto exit;
1592         }
1593 
1594         *address = superio_inw(sioaddr, SIO_REG_ADDR);
1595         if (*address == 0) {
1596                 pr_warn("Base address not set, skipping\n");
1597                 goto exit;
1598         }
1599         *address &= ~(REGION_LENGTH - 1);       /* Ignore 3 LSB */
1600 
1601         err = 0;
1602         pr_info("Found %s chip at %#x, revision %u\n",
1603                 names[sio_data->kind], *address,
1604                 superio_inb(sioaddr, SIO_REG_DEVREV));
1605 
1606 exit:
1607         superio_exit(sioaddr);
1608         return err;
1609 }
1610 
1611 static int __init f71805f_init(void)
1612 {
1613         int err;
1614         unsigned short address;
1615         struct f71805f_sio_data sio_data;
1616 
1617         if (f71805f_find(0x2e, &address, &sio_data)
1618          && f71805f_find(0x4e, &address, &sio_data))
1619                 return -ENODEV;
1620 
1621         err = platform_driver_register(&f71805f_driver);
1622         if (err)
1623                 goto exit;
1624 
1625         /* Sets global pdev as a side effect */
1626         err = f71805f_device_add(address, &sio_data);
1627         if (err)
1628                 goto exit_driver;
1629 
1630         return 0;
1631 
1632 exit_driver:
1633         platform_driver_unregister(&f71805f_driver);
1634 exit:
1635         return err;
1636 }
1637 
1638 static void __exit f71805f_exit(void)
1639 {
1640         platform_device_unregister(pdev);
1641         platform_driver_unregister(&f71805f_driver);
1642 }
1643 
1644 MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>");
1645 MODULE_LICENSE("GPL");
1646 MODULE_DESCRIPTION("F71805F/F71872F hardware monitoring driver");
1647 
1648 module_init(f71805f_init);
1649 module_exit(f71805f_exit);
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/hwmon/f71805f.c

DEFINITIONS
