drivers/hwmon/lm93.c

   1 /*
   2  * lm93.c - Part of lm_sensors, Linux kernel modules for hardware monitoring
   3  *
   4  * Author/Maintainer: Mark M. Hoffman <[email protected]>
   5  *      Copyright (c) 2004 Utilitek Systems, Inc.
   6  *
   7  * derived in part from lm78.c:
   8  *      Copyright (c) 1998, 1999  Frodo Looijaard <[email protected]>
   9  *
  10  * derived in part from lm85.c:
  11  *      Copyright (c) 2002, 2003 Philip Pokorny <[email protected]>
  12  *      Copyright (c) 2003       Margit Schubert-While <[email protected]>
  13  *
  14  * derived in part from w83l785ts.c:
  15  *      Copyright (c) 2003-2004 Jean Delvare <[email protected]>
  16  *
  17  * Ported to Linux 2.6 by Eric J. Bowersox <[email protected]>
  18  *      Copyright (c) 2005 Aspen Systems, Inc.
  19  *
  20  * Adapted to 2.6.20 by Carsten Emde <[email protected]>
  21  *      Copyright (c) 2006 Carsten Emde, Open Source Automation Development Lab
  22  *
  23  * Modified for mainline integration by Hans J. Koch <[email protected]>
  24  *      Copyright (c) 2007 Hans J. Koch, Linutronix GmbH
  25  *
  26  * This program is free software; you can redistribute it and/or modify
  27  * it under the terms of the GNU General Public License as published by
  28  * the Free Software Foundation; either version 2 of the License, or
  29  * (at your option) any later version.
  30  *
  31  * This program is distributed in the hope that it will be useful,
  32  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  33  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  34  * GNU General Public License for more details.
  35  *
  36  * You should have received a copy of the GNU General Public License
  37  * along with this program; if not, write to the Free Software
  38  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  39  */
  40
  41 #include <linux/module.h>
  42 #include <linux/init.h>
  43 #include <linux/slab.h>
  44 #include <linux/i2c.h>
  45 #include <linux/hwmon.h>
  46 #include <linux/hwmon-sysfs.h>
  47 #include <linux/hwmon-vid.h>
  48 #include <linux/err.h>
  49 #include <linux/delay.h>
  50 #include <linux/jiffies.h>
  51
  52 /* LM93 REGISTER ADDRESSES */
  53
  54 /* miscellaneous */
  55 #define LM93_REG_MFR_ID                 0x3e
  56 #define LM93_REG_VER                    0x3f
  57 #define LM93_REG_STATUS_CONTROL         0xe2
  58 #define LM93_REG_CONFIG                 0xe3
  59 #define LM93_REG_SLEEP_CONTROL          0xe4
  60
  61 /* alarm values start here */
  62 #define LM93_REG_HOST_ERROR_1           0x48
  63
  64 /* voltage inputs: in1-in16 (nr => 0-15) */
  65 #define LM93_REG_IN(nr)                 (0x56 + (nr))
  66 #define LM93_REG_IN_MIN(nr)             (0x90 + (nr) * 2)
  67 #define LM93_REG_IN_MAX(nr)             (0x91 + (nr) * 2)
  68
  69 /* temperature inputs: temp1-temp4 (nr => 0-3) */
  70 #define LM93_REG_TEMP(nr)               (0x50 + (nr))
  71 #define LM93_REG_TEMP_MIN(nr)           (0x78 + (nr) * 2)
  72 #define LM93_REG_TEMP_MAX(nr)           (0x79 + (nr) * 2)
  73
  74 /* temp[1-4]_auto_boost (nr => 0-3) */
  75 #define LM93_REG_BOOST(nr)              (0x80 + (nr))
  76
  77 /* #PROCHOT inputs: prochot1-prochot2 (nr => 0-1) */
  78 #define LM93_REG_PROCHOT_CUR(nr)        (0x67 + (nr) * 2)
  79 #define LM93_REG_PROCHOT_AVG(nr)        (0x68 + (nr) * 2)
  80 #define LM93_REG_PROCHOT_MAX(nr)        (0xb0 + (nr))
  81
  82 /* fan tach inputs: fan1-fan4 (nr => 0-3) */
  83 #define LM93_REG_FAN(nr)                (0x6e + (nr) * 2)
  84 #define LM93_REG_FAN_MIN(nr)            (0xb4 + (nr) * 2)
  85
  86 /* pwm outputs: pwm1-pwm2 (nr => 0-1, reg => 0-3) */
  87 #define LM93_REG_PWM_CTL(nr, reg)       (0xc8 + (reg) + (nr) * 4)
  88 #define LM93_PWM_CTL1   0x0
  89 #define LM93_PWM_CTL2   0x1
  90 #define LM93_PWM_CTL3   0x2
  91 #define LM93_PWM_CTL4   0x3
  92
  93 /* GPIO input state */
  94 #define LM93_REG_GPI                    0x6b
  95
  96 /* vid inputs: vid1-vid2 (nr => 0-1) */
  97 #define LM93_REG_VID(nr)                (0x6c + (nr))
  98
  99 /* vccp1 & vccp2: VID relative inputs (nr => 0-1) */
 100 #define LM93_REG_VCCP_LIMIT_OFF(nr)     (0xb2 + (nr))
 101
 102 /* temp[1-4]_auto_boost_hyst */
 103 #define LM93_REG_BOOST_HYST_12          0xc0
 104 #define LM93_REG_BOOST_HYST_34          0xc1
 105 #define LM93_REG_BOOST_HYST(nr)         (0xc0 + (nr)/2)
 106
 107 /* temp[1-4]_auto_pwm_[min|hyst] */
 108 #define LM93_REG_PWM_MIN_HYST_12        0xc3
 109 #define LM93_REG_PWM_MIN_HYST_34        0xc4
 110 #define LM93_REG_PWM_MIN_HYST(nr)       (0xc3 + (nr)/2)
 111
 112 /* prochot_override & prochot_interval */
 113 #define LM93_REG_PROCHOT_OVERRIDE       0xc6
 114 #define LM93_REG_PROCHOT_INTERVAL       0xc7
 115
 116 /* temp[1-4]_auto_base (nr => 0-3) */
 117 #define LM93_REG_TEMP_BASE(nr)          (0xd0 + (nr))
 118
 119 /* temp[1-4]_auto_offsets (step => 0-11) */
 120 #define LM93_REG_TEMP_OFFSET(step)      (0xd4 + (step))
 121
 122 /* #PROCHOT & #VRDHOT PWM ramp control */
 123 #define LM93_REG_PWM_RAMP_CTL           0xbf
 124
 125 /* miscellaneous */
 126 #define LM93_REG_SFC1           0xbc
 127 #define LM93_REG_SFC2           0xbd
 128 #define LM93_REG_GPI_VID_CTL    0xbe
 129 #define LM93_REG_SF_TACH_TO_PWM 0xe0
 130
 131 /* error masks */
 132 #define LM93_REG_GPI_ERR_MASK   0xec
 133 #define LM93_REG_MISC_ERR_MASK  0xed
 134
 135 /* LM93 REGISTER VALUES */
 136 #define LM93_MFR_ID             0x73
 137 #define LM93_MFR_ID_PROTOTYPE   0x72
 138
 139 /* LM94 REGISTER VALUES */
 140 #define LM94_MFR_ID_2           0x7a
 141 #define LM94_MFR_ID             0x79
 142 #define LM94_MFR_ID_PROTOTYPE   0x78
 143
 144 /* SMBus capabilities */
 145 #define LM93_SMBUS_FUNC_FULL (I2C_FUNC_SMBUS_BYTE_DATA | \
 146                 I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_BLOCK_DATA)
 147 #define LM93_SMBUS_FUNC_MIN  (I2C_FUNC_SMBUS_BYTE_DATA | \
 148                 I2C_FUNC_SMBUS_WORD_DATA)
 149
 150 /* Addresses to scan */
 151 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
 152
 153 /* Insmod parameters */
 154
 155 static bool disable_block;
 156 module_param(disable_block, bool, 0);
 157 MODULE_PARM_DESC(disable_block,
 158         "Set to non-zero to disable SMBus block data transactions.");
 159
 160 static bool init;
 161 module_param(init, bool, 0);
 162 MODULE_PARM_DESC(init, "Set to non-zero to force chip initialization.");
 163
 164 static int vccp_limit_type[2] = {0, 0};
 165 module_param_array(vccp_limit_type, int, NULL, 0);
 166 MODULE_PARM_DESC(vccp_limit_type, "Configures in7 and in8 limit modes.");
 167
 168 static int vid_agtl;
 169 module_param(vid_agtl, int, 0);
 170 MODULE_PARM_DESC(vid_agtl, "Configures VID pin input thresholds.");
 171
 172 /* Driver data */
 173 static struct i2c_driver lm93_driver;
 174
 175 /* LM93 BLOCK READ COMMANDS */
 176 static const struct { u8 cmd; u8 len; } lm93_block_read_cmds[12] = {
 177         { 0xf2,  8 },
 178         { 0xf3,  8 },
 179         { 0xf4,  6 },
 180         { 0xf5, 16 },
 181         { 0xf6,  4 },
 182         { 0xf7,  8 },
 183         { 0xf8, 12 },
 184         { 0xf9, 32 },
 185         { 0xfa,  8 },
 186         { 0xfb,  8 },
 187         { 0xfc, 16 },
 188         { 0xfd,  9 },
 189 };
 190
 191 /*
 192  * ALARMS: SYSCTL format described further below
 193  * REG: 64 bits in 8 registers, as immediately below
 194  */
 195 struct block1_t {
 196         u8 host_status_1;
 197         u8 host_status_2;
 198         u8 host_status_3;
 199         u8 host_status_4;
 200         u8 p1_prochot_status;
 201         u8 p2_prochot_status;
 202         u8 gpi_status;
 203         u8 fan_status;
 204 };
 205
 206 /*
 207  * Client-specific data
 208  */
 209 struct lm93_data {
 210         struct i2c_client *client;
 211
 212         struct mutex update_lock;
 213         unsigned long last_updated;     /* In jiffies */
 214
 215         /* client update function */
 216         void (*update)(struct lm93_data *, struct i2c_client *);
 217
 218         char valid; /* !=0 if following fields are valid */
 219
 220         /* register values, arranged by block read groups */
 221         struct block1_t block1;
 222
 223         /*
 224          * temp1 - temp4: unfiltered readings
 225          * temp1 - temp2: filtered readings
 226          */
 227         u8 block2[6];
 228
 229         /* vin1 - vin16: readings */
 230         u8 block3[16];
 231
 232         /* prochot1 - prochot2: readings */
 233         struct {
 234                 u8 cur;
 235                 u8 avg;
 236         } block4[2];
 237
 238         /* fan counts 1-4 => 14-bits, LE, *left* justified */
 239         u16 block5[4];
 240
 241         /* block6 has a lot of data we don't need */
 242         struct {
 243                 u8 min;
 244                 u8 max;
 245         } temp_lim[4];
 246
 247         /* vin1 - vin16: low and high limits */
 248         struct {
 249                 u8 min;
 250                 u8 max;
 251         } block7[16];
 252
 253         /* fan count limits 1-4 => same format as block5 */
 254         u16 block8[4];
 255
 256         /* pwm control registers (2 pwms, 4 regs) */
 257         u8 block9[2][4];
 258
 259         /* auto/pwm base temp and offset temp registers */
 260         struct {
 261                 u8 base[4];
 262                 u8 offset[12];
 263         } block10;
 264
 265         /* master config register */
 266         u8 config;
 267
 268         /* VID1 & VID2 => register format, 6-bits, right justified */
 269         u8 vid[2];
 270
 271         /* prochot1 - prochot2: limits */
 272         u8 prochot_max[2];
 273
 274         /* vccp1 & vccp2 (in7 & in8): VID relative limits (register format) */
 275         u8 vccp_limits[2];
 276
 277         /* GPIO input state (register format, i.e. inverted) */
 278         u8 gpi;
 279
 280         /* #PROCHOT override (register format) */
 281         u8 prochot_override;
 282
 283         /* #PROCHOT intervals (register format) */
 284         u8 prochot_interval;
 285
 286         /* Fan Boost Temperatures (register format) */
 287         u8 boost[4];
 288
 289         /* Fan Boost Hysteresis (register format) */
 290         u8 boost_hyst[2];
 291
 292         /* Temperature Zone Min. PWM & Hysteresis (register format) */
 293         u8 auto_pwm_min_hyst[2];
 294
 295         /* #PROCHOT & #VRDHOT PWM Ramp Control */
 296         u8 pwm_ramp_ctl;
 297
 298         /* miscellaneous setup regs */
 299         u8 sfc1;
 300         u8 sfc2;
 301         u8 sf_tach_to_pwm;
 302
 303         /*
 304          * The two PWM CTL2  registers can read something other than what was
 305          * last written for the OVR_DC field (duty cycle override).  So, we
 306          * save the user-commanded value here.
 307          */
 308         u8 pwm_override[2];
 309 };
 310
 311 /*
 312  * VID: mV
 313  * REG: 6-bits, right justified, *always* using Intel VRM/VRD 10
 314  */
 315 static int LM93_VID_FROM_REG(u8 reg)
 316 {
 317         return vid_from_reg((reg & 0x3f), 100);
 318 }
 319
 320 /* min, max, and nominal register values, per channel (u8) */
 321 static const u8 lm93_vin_reg_min[16] = {
 322         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 323         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xae,
 324 };
 325 static const u8 lm93_vin_reg_max[16] = {
 326         0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
 327         0xff, 0xfa, 0xff, 0xff, 0xff, 0xff, 0xff, 0xd1,
 328 };
 329 /*
 330  * Values from the datasheet. They're here for documentation only.
 331  * static const u8 lm93_vin_reg_nom[16] = {
 332  * 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0,
 333  * 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0xc0, 0x40, 0xc0,
 334  * };
 335  */
 336
 337 /* min, max, and nominal voltage readings, per channel (mV)*/
 338 static const unsigned long lm93_vin_val_min[16] = {
 339         0, 0, 0, 0, 0, 0, 0, 0,
 340         0, 0, 0, 0, 0, 0, 0, 3000,
 341 };
 342
 343 static const unsigned long lm93_vin_val_max[16] = {
 344         1236, 1236, 1236, 1600, 2000, 2000, 1600, 1600,
 345         4400, 6500, 3333, 2625, 1312, 1312, 1236, 3600,
 346 };
 347 /*
 348  * Values from the datasheet. They're here for documentation only.
 349  * static const unsigned long lm93_vin_val_nom[16] = {
 350  * 927,  927,  927, 1200, 1500, 1500, 1200, 1200,
 351  * 3300, 5000, 2500, 1969,  984,  984,  309, 3300,
 352  * };
 353  */
 354
 355 static unsigned LM93_IN_FROM_REG(int nr, u8 reg)
 356 {
 357         const long uv_max = lm93_vin_val_max[nr] * 1000;
 358         const long uv_min = lm93_vin_val_min[nr] * 1000;
 359
 360         const long slope = (uv_max - uv_min) /
 361                 (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]);
 362         const long intercept = uv_min - slope * lm93_vin_reg_min[nr];
 363
 364         return (slope * reg + intercept + 500) / 1000;
 365 }
 366
 367 /*
 368  * IN: mV, limits determined by channel nr
 369  * REG: scaling determined by channel nr
 370  */
 371 static u8 LM93_IN_TO_REG(int nr, unsigned val)
 372 {
 373         /* range limit */
 374         const long mv = clamp_val(val,
 375                                   lm93_vin_val_min[nr], lm93_vin_val_max[nr]);
 376
 377         /* try not to lose too much precision here */
 378         const long uv = mv * 1000;
 379         const long uv_max = lm93_vin_val_max[nr] * 1000;
 380         const long uv_min = lm93_vin_val_min[nr] * 1000;
 381
 382         /* convert */
 383         const long slope = (uv_max - uv_min) /
 384                 (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]);
 385         const long intercept = uv_min - slope * lm93_vin_reg_min[nr];
 386
 387         u8 result = ((uv - intercept + (slope/2)) / slope);
 388         result = clamp_val(result,
 389                            lm93_vin_reg_min[nr], lm93_vin_reg_max[nr]);
 390         return result;
 391 }
 392
 393 /* vid in mV, upper == 0 indicates low limit, otherwise upper limit */
 394 static unsigned LM93_IN_REL_FROM_REG(u8 reg, int upper, int vid)
 395 {
 396         const long uv_offset = upper ? (((reg >> 4 & 0x0f) + 1) * 12500) :
 397                                 (((reg >> 0 & 0x0f) + 1) * -25000);
 398         const long uv_vid = vid * 1000;
 399         return (uv_vid + uv_offset + 5000) / 10000;
 400 }
 401
 402 #define LM93_IN_MIN_FROM_REG(reg, vid)  LM93_IN_REL_FROM_REG((reg), 0, (vid))
 403 #define LM93_IN_MAX_FROM_REG(reg, vid)  LM93_IN_REL_FROM_REG((reg), 1, (vid))
 404
 405 /*
 406  * vid in mV , upper == 0 indicates low limit, otherwise upper limit
 407  * upper also determines which nibble of the register is returned
 408  * (the other nibble will be 0x0)
 409  */
 410 static u8 LM93_IN_REL_TO_REG(unsigned val, int upper, int vid)
 411 {
 412         long uv_offset = vid * 1000 - val * 10000;
 413         if (upper) {
 414                 uv_offset = clamp_val(uv_offset, 12500, 200000);
 415                 return (u8)((uv_offset /  12500 - 1) << 4);
 416         } else {
 417                 uv_offset = clamp_val(uv_offset, -400000, -25000);
 418                 return (u8)((uv_offset / -25000 - 1) << 0);
 419         }
 420 }
 421
 422 /*
 423  * TEMP: 1/1000 degrees C (-128C to +127C)
 424  * REG: 1C/bit, two's complement
 425  */
 426 static int LM93_TEMP_FROM_REG(u8 reg)
 427 {
 428         return (s8)reg * 1000;
 429 }
 430
 431 #define LM93_TEMP_MIN (-128000)
 432 #define LM93_TEMP_MAX (127000)
 433
 434 /*
 435  * TEMP: 1/1000 degrees C (-128C to +127C)
 436  * REG: 1C/bit, two's complement
 437  */
 438 static u8 LM93_TEMP_TO_REG(long temp)
 439 {
 440         int ntemp = clamp_val(temp, LM93_TEMP_MIN, LM93_TEMP_MAX);
 441         ntemp += (ntemp < 0 ? -500 : 500);
 442         return (u8)(ntemp / 1000);
 443 }
 444
 445 /* Determine 4-bit temperature offset resolution */
 446 static int LM93_TEMP_OFFSET_MODE_FROM_REG(u8 sfc2, int nr)
 447 {
 448         /* mode: 0 => 1C/bit, nonzero => 0.5C/bit */
 449         return sfc2 & (nr < 2 ? 0x10 : 0x20);
 450 }
 451
 452 /*
 453  * This function is common to all 4-bit temperature offsets
 454  * reg is 4 bits right justified
 455  * mode 0 => 1C/bit, mode !0 => 0.5C/bit
 456  */
 457 static int LM93_TEMP_OFFSET_FROM_REG(u8 reg, int mode)
 458 {
 459         return (reg & 0x0f) * (mode ? 5 : 10);
 460 }
 461
 462 #define LM93_TEMP_OFFSET_MIN  (0)
 463 #define LM93_TEMP_OFFSET_MAX0 (150)
 464 #define LM93_TEMP_OFFSET_MAX1 (75)
 465
 466 /*
 467  * This function is common to all 4-bit temperature offsets
 468  * returns 4 bits right justified
 469  * mode 0 => 1C/bit, mode !0 => 0.5C/bit
 470  */
 471 static u8 LM93_TEMP_OFFSET_TO_REG(int off, int mode)
 472 {
 473         int factor = mode ? 5 : 10;
 474
 475         off = clamp_val(off, LM93_TEMP_OFFSET_MIN,
 476                 mode ? LM93_TEMP_OFFSET_MAX1 : LM93_TEMP_OFFSET_MAX0);
 477         return (u8)((off + factor/2) / factor);
 478 }
 479
 480 /* 0 <= nr <= 3 */
 481 static int LM93_TEMP_AUTO_OFFSET_FROM_REG(u8 reg, int nr, int mode)
 482 {
 483         /* temp1-temp2 (nr=0,1) use lower nibble */
 484         if (nr < 2)
 485                 return LM93_TEMP_OFFSET_FROM_REG(reg & 0x0f, mode);
 486
 487         /* temp3-temp4 (nr=2,3) use upper nibble */
 488         else
 489                 return LM93_TEMP_OFFSET_FROM_REG(reg >> 4 & 0x0f, mode);
 490 }
 491
 492 /*
 493  * TEMP: 1/10 degrees C (0C to +15C (mode 0) or +7.5C (mode non-zero))
 494  * REG: 1.0C/bit (mode 0) or 0.5C/bit (mode non-zero)
 495  * 0 <= nr <= 3
 496  */
 497 static u8 LM93_TEMP_AUTO_OFFSET_TO_REG(u8 old, int off, int nr, int mode)
 498 {
 499         u8 new = LM93_TEMP_OFFSET_TO_REG(off, mode);
 500
 501         /* temp1-temp2 (nr=0,1) use lower nibble */
 502         if (nr < 2)
 503                 return (old & 0xf0) | (new & 0x0f);
 504
 505         /* temp3-temp4 (nr=2,3) use upper nibble */
 506         else
 507                 return (new << 4 & 0xf0) | (old & 0x0f);
 508 }
 509
 510 static int LM93_AUTO_BOOST_HYST_FROM_REGS(struct lm93_data *data, int nr,
 511                 int mode)
 512 {
 513         u8 reg;
 514
 515         switch (nr) {
 516         case 0:
 517                 reg = data->boost_hyst[0] & 0x0f;
 518                 break;
 519         case 1:
 520                 reg = data->boost_hyst[0] >> 4 & 0x0f;
 521                 break;
 522         case 2:
 523                 reg = data->boost_hyst[1] & 0x0f;
 524                 break;
 525         case 3:
 526         default:
 527                 reg = data->boost_hyst[1] >> 4 & 0x0f;
 528                 break;
 529         }
 530
 531         return LM93_TEMP_FROM_REG(data->boost[nr]) -
 532                         LM93_TEMP_OFFSET_FROM_REG(reg, mode);
 533 }
 534
 535 static u8 LM93_AUTO_BOOST_HYST_TO_REG(struct lm93_data *data, long hyst,
 536                 int nr, int mode)
 537 {
 538         u8 reg = LM93_TEMP_OFFSET_TO_REG(
 539                         (LM93_TEMP_FROM_REG(data->boost[nr]) - hyst), mode);
 540
 541         switch (nr) {
 542         case 0:
 543                 reg = (data->boost_hyst[0] & 0xf0) | (reg & 0x0f);
 544                 break;
 545         case 1:
 546                 reg = (reg << 4 & 0xf0) | (data->boost_hyst[0] & 0x0f);
 547                 break;
 548         case 2:
 549                 reg = (data->boost_hyst[1] & 0xf0) | (reg & 0x0f);
 550                 break;
 551         case 3:
 552         default:
 553                 reg = (reg << 4 & 0xf0) | (data->boost_hyst[1] & 0x0f);
 554                 break;
 555         }
 556
 557         return reg;
 558 }
 559
 560 /*
 561  * PWM: 0-255 per sensors documentation
 562  * REG: 0-13 as mapped below... right justified
 563  */
 564 enum pwm_freq { LM93_PWM_MAP_HI_FREQ, LM93_PWM_MAP_LO_FREQ };
 565
 566 static int lm93_pwm_map[2][16] = {
 567         {
 568                 0x00, /*   0.00% */ 0x40, /*  25.00% */
 569                 0x50, /*  31.25% */ 0x60, /*  37.50% */
 570                 0x70, /*  43.75% */ 0x80, /*  50.00% */
 571                 0x90, /*  56.25% */ 0xa0, /*  62.50% */
 572                 0xb0, /*  68.75% */ 0xc0, /*  75.00% */
 573                 0xd0, /*  81.25% */ 0xe0, /*  87.50% */
 574                 0xf0, /*  93.75% */ 0xff, /* 100.00% */
 575                 0xff, 0xff, /* 14, 15 are reserved and should never occur */
 576         },
 577         {
 578                 0x00, /*   0.00% */ 0x40, /*  25.00% */
 579                 0x49, /*  28.57% */ 0x52, /*  32.14% */
 580                 0x5b, /*  35.71% */ 0x64, /*  39.29% */
 581                 0x6d, /*  42.86% */ 0x76, /*  46.43% */
 582                 0x80, /*  50.00% */ 0x89, /*  53.57% */
 583                 0x92, /*  57.14% */ 0xb6, /*  71.43% */
 584                 0xdb, /*  85.71% */ 0xff, /* 100.00% */
 585                 0xff, 0xff, /* 14, 15 are reserved and should never occur */
 586         },
 587 };
 588
 589 static int LM93_PWM_FROM_REG(u8 reg, enum pwm_freq freq)
 590 {
 591         return lm93_pwm_map[freq][reg & 0x0f];
 592 }
 593
 594 /* round up to nearest match */
 595 static u8 LM93_PWM_TO_REG(int pwm, enum pwm_freq freq)
 596 {
 597         int i;
 598         for (i = 0; i < 13; i++)
 599                 if (pwm <= lm93_pwm_map[freq][i])
 600                         break;
 601
 602         /* can fall through with i==13 */
 603         return (u8)i;
 604 }
 605
 606 static int LM93_FAN_FROM_REG(u16 regs)
 607 {
 608         const u16 count = le16_to_cpu(regs) >> 2;
 609         return count == 0 ? -1 : count == 0x3fff ? 0 : 1350000 / count;
 610 }
 611
 612 /*
 613  * RPM: (82.5 to 1350000)
 614  * REG: 14-bits, LE, *left* justified
 615  */
 616 static u16 LM93_FAN_TO_REG(long rpm)
 617 {
 618         u16 count, regs;
 619
 620         if (rpm == 0) {
 621                 count = 0x3fff;
 622         } else {
 623                 rpm = clamp_val(rpm, 1, 1000000);
 624                 count = clamp_val((1350000 + rpm) / rpm, 1, 0x3ffe);
 625         }
 626
 627         regs = count << 2;
 628         return cpu_to_le16(regs);
 629 }
 630
 631 /*
 632  * PWM FREQ: HZ
 633  * REG: 0-7 as mapped below
 634  */
 635 static int lm93_pwm_freq_map[8] = {
 636         22500, 96, 84, 72, 60, 48, 36, 12
 637 };
 638
 639 static int LM93_PWM_FREQ_FROM_REG(u8 reg)
 640 {
 641         return lm93_pwm_freq_map[reg & 0x07];
 642 }
 643
 644 /* round up to nearest match */
 645 static u8 LM93_PWM_FREQ_TO_REG(int freq)
 646 {
 647         int i;
 648         for (i = 7; i > 0; i--)
 649                 if (freq <= lm93_pwm_freq_map[i])
 650                         break;
 651
 652         /* can fall through with i==0 */
 653         return (u8)i;
 654 }
 655
 656 /*
 657  * TIME: 1/100 seconds
 658  * REG: 0-7 as mapped below
 659  */
 660 static int lm93_spinup_time_map[8] = {
 661         0, 10, 25, 40, 70, 100, 200, 400,
 662 };
 663
 664 static int LM93_SPINUP_TIME_FROM_REG(u8 reg)
 665 {
 666         return lm93_spinup_time_map[reg >> 5 & 0x07];
 667 }
 668
 669 /* round up to nearest match */
 670 static u8 LM93_SPINUP_TIME_TO_REG(int time)
 671 {
 672         int i;
 673         for (i = 0; i < 7; i++)
 674                 if (time <= lm93_spinup_time_map[i])
 675                         break;
 676
 677         /* can fall through with i==8 */
 678         return (u8)i;
 679 }
 680
 681 #define LM93_RAMP_MIN 0
 682 #define LM93_RAMP_MAX 75
 683
 684 static int LM93_RAMP_FROM_REG(u8 reg)
 685 {
 686         return (reg & 0x0f) * 5;
 687 }
 688
 689 /*
 690  * RAMP: 1/100 seconds
 691  * REG: 50mS/bit 4-bits right justified
 692  */
 693 static u8 LM93_RAMP_TO_REG(int ramp)
 694 {
 695         ramp = clamp_val(ramp, LM93_RAMP_MIN, LM93_RAMP_MAX);
 696         return (u8)((ramp + 2) / 5);
 697 }
 698
 699 /*
 700  * PROCHOT: 0-255, 0 => 0%, 255 => > 96.6%
 701  * REG: (same)
 702  */
 703 static u8 LM93_PROCHOT_TO_REG(long prochot)
 704 {
 705         prochot = clamp_val(prochot, 0, 255);
 706         return (u8)prochot;
 707 }
 708
 709 /*
 710  * PROCHOT-INTERVAL: 73 - 37200 (1/100 seconds)
 711  * REG: 0-9 as mapped below
 712  */
 713 static int lm93_interval_map[10] = {
 714         73, 146, 290, 580, 1170, 2330, 4660, 9320, 18600, 37200,
 715 };
 716
 717 static int LM93_INTERVAL_FROM_REG(u8 reg)
 718 {
 719         return lm93_interval_map[reg & 0x0f];
 720 }
 721
 722 /* round up to nearest match */
 723 static u8 LM93_INTERVAL_TO_REG(long interval)
 724 {
 725         int i;
 726         for (i = 0; i < 9; i++)
 727                 if (interval <= lm93_interval_map[i])
 728                         break;
 729
 730         /* can fall through with i==9 */
 731         return (u8)i;
 732 }
 733
 734 /*
 735  * GPIO: 0-255, GPIO0 is LSB
 736  * REG: inverted
 737  */
 738 static unsigned LM93_GPI_FROM_REG(u8 reg)
 739 {
 740         return ~reg & 0xff;
 741 }
 742
 743 /*
 744  * alarm bitmask definitions
 745  * The LM93 has nearly 64 bits of error status... I've pared that down to
 746  * what I think is a useful subset in order to fit it into 32 bits.
 747  *
 748  * Especially note that the #VRD_HOT alarms are missing because we provide
 749  * that information as values in another sysfs file.
 750  *
 751  * If libsensors is extended to support 64 bit values, this could be revisited.
 752  */
 753 #define LM93_ALARM_IN1          0x00000001
 754 #define LM93_ALARM_IN2          0x00000002
 755 #define LM93_ALARM_IN3          0x00000004
 756 #define LM93_ALARM_IN4          0x00000008
 757 #define LM93_ALARM_IN5          0x00000010
 758 #define LM93_ALARM_IN6          0x00000020
 759 #define LM93_ALARM_IN7          0x00000040
 760 #define LM93_ALARM_IN8          0x00000080
 761 #define LM93_ALARM_IN9          0x00000100
 762 #define LM93_ALARM_IN10         0x00000200
 763 #define LM93_ALARM_IN11         0x00000400
 764 #define LM93_ALARM_IN12         0x00000800
 765 #define LM93_ALARM_IN13         0x00001000
 766 #define LM93_ALARM_IN14         0x00002000
 767 #define LM93_ALARM_IN15         0x00004000
 768 #define LM93_ALARM_IN16         0x00008000
 769 #define LM93_ALARM_FAN1         0x00010000
 770 #define LM93_ALARM_FAN2         0x00020000
 771 #define LM93_ALARM_FAN3         0x00040000
 772 #define LM93_ALARM_FAN4         0x00080000
 773 #define LM93_ALARM_PH1_ERR      0x00100000
 774 #define LM93_ALARM_PH2_ERR      0x00200000
 775 #define LM93_ALARM_SCSI1_ERR    0x00400000
 776 #define LM93_ALARM_SCSI2_ERR    0x00800000
 777 #define LM93_ALARM_DVDDP1_ERR   0x01000000
 778 #define LM93_ALARM_DVDDP2_ERR   0x02000000
 779 #define LM93_ALARM_D1_ERR       0x04000000
 780 #define LM93_ALARM_D2_ERR       0x08000000
 781 #define LM93_ALARM_TEMP1        0x10000000
 782 #define LM93_ALARM_TEMP2        0x20000000
 783 #define LM93_ALARM_TEMP3        0x40000000
 784
 785 static unsigned LM93_ALARMS_FROM_REG(struct block1_t b1)
 786 {
 787         unsigned result;
 788         result  = b1.host_status_2 & 0x3f;
 789
 790         if (vccp_limit_type[0])
 791                 result |= (b1.host_status_4 & 0x10) << 2;
 792         else
 793                 result |= b1.host_status_2 & 0x40;
 794
 795         if (vccp_limit_type[1])
 796                 result |= (b1.host_status_4 & 0x20) << 2;
 797         else
 798                 result |= b1.host_status_2 & 0x80;
 799
 800         result |= b1.host_status_3 << 8;
 801         result |= (b1.fan_status & 0x0f) << 16;
 802         result |= (b1.p1_prochot_status & 0x80) << 13;
 803         result |= (b1.p2_prochot_status & 0x80) << 14;
 804         result |= (b1.host_status_4 & 0xfc) << 20;
 805         result |= (b1.host_status_1 & 0x07) << 28;
 806         return result;
 807 }
 808
 809 #define MAX_RETRIES 5
 810
 811 static u8 lm93_read_byte(struct i2c_client *client, u8 reg)
 812 {
 813         int value, i;
 814
 815         /* retry in case of read errors */
 816         for (i = 1; i <= MAX_RETRIES; i++) {
 817                 value = i2c_smbus_read_byte_data(client, reg);
 818                 if (value >= 0) {
 819                         return value;
 820                 } else {
 821                         dev_warn(&client->dev,
 822                                  "lm93: read byte data failed, address 0x%02x.\n",
 823                                  reg);
 824                         mdelay(i + 3);
 825                 }
 826
 827         }
 828
 829         /* <TODO> what to return in case of error? */
 830         dev_err(&client->dev, "lm93: All read byte retries failed!!\n");
 831         return 0;
 832 }
 833
 834 static int lm93_write_byte(struct i2c_client *client, u8 reg, u8 value)
 835 {
 836         int result;
 837
 838         /* <TODO> how to handle write errors? */
 839         result = i2c_smbus_write_byte_data(client, reg, value);
 840
 841         if (result < 0)
 842                 dev_warn(&client->dev,
 843                          "lm93: write byte data failed, 0x%02x at address 0x%02x.\n",
 844                          value, reg);
 845
 846         return result;
 847 }
 848
 849 static u16 lm93_read_word(struct i2c_client *client, u8 reg)
 850 {
 851         int value, i;
 852
 853         /* retry in case of read errors */
 854         for (i = 1; i <= MAX_RETRIES; i++) {
 855                 value = i2c_smbus_read_word_data(client, reg);
 856                 if (value >= 0) {
 857                         return value;
 858                 } else {
 859                         dev_warn(&client->dev,
 860                                  "lm93: read word data failed, address 0x%02x.\n",
 861                                  reg);
 862                         mdelay(i + 3);
 863                 }
 864
 865         }
 866
 867         /* <TODO> what to return in case of error? */
 868         dev_err(&client->dev, "lm93: All read word retries failed!!\n");
 869         return 0;
 870 }
 871
 872 static int lm93_write_word(struct i2c_client *client, u8 reg, u16 value)
 873 {
 874         int result;
 875
 876         /* <TODO> how to handle write errors? */
 877         result = i2c_smbus_write_word_data(client, reg, value);
 878
 879         if (result < 0)
 880                 dev_warn(&client->dev,
 881                          "lm93: write word data failed, 0x%04x at address 0x%02x.\n",
 882                          value, reg);
 883
 884         return result;
 885 }
 886
 887 static u8 lm93_block_buffer[I2C_SMBUS_BLOCK_MAX];
 888
 889 /*
 890  * read block data into values, retry if not expected length
 891  * fbn => index to lm93_block_read_cmds table
 892  * (Fixed Block Number - section 14.5.2 of LM93 datasheet)
 893  */
 894 static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values)
 895 {
 896         int i, result = 0;
 897
 898         for (i = 1; i <= MAX_RETRIES; i++) {
 899                 result = i2c_smbus_read_block_data(client,
 900                         lm93_block_read_cmds[fbn].cmd, lm93_block_buffer);
 901
 902                 if (result == lm93_block_read_cmds[fbn].len) {
 903                         break;
 904                 } else {
 905                         dev_warn(&client->dev,
 906                                  "lm93: block read data failed, command 0x%02x.\n",
 907                                  lm93_block_read_cmds[fbn].cmd);
 908                         mdelay(i + 3);
 909                 }
 910         }
 911
 912         if (result == lm93_block_read_cmds[fbn].len) {
 913                 memcpy(values, lm93_block_buffer,
 914                        lm93_block_read_cmds[fbn].len);
 915         } else {
 916                 /* <TODO> what to do in case of error? */
 917         }
 918 }
 919
 920 static struct lm93_data *lm93_update_device(struct device *dev)
 921 {
 922         struct lm93_data *data = dev_get_drvdata(dev);
 923         struct i2c_client *client = data->client;
 924         const unsigned long interval = HZ + (HZ / 2);
 925
 926         mutex_lock(&data->update_lock);
 927
 928         if (time_after(jiffies, data->last_updated + interval) ||
 929                 !data->valid) {
 930
 931                 data->update(data, client);
 932                 data->last_updated = jiffies;
 933                 data->valid = 1;
 934         }
 935
 936         mutex_unlock(&data->update_lock);
 937         return data;
 938 }
 939
 940 /* update routine for data that has no corresponding SMBus block command */
 941 static void lm93_update_client_common(struct lm93_data *data,
 942                                       struct i2c_client *client)
 943 {
 944         int i;
 945         u8 *ptr;
 946
 947         /* temp1 - temp4: limits */
 948         for (i = 0; i < 4; i++) {
 949                 data->temp_lim[i].min =
 950                         lm93_read_byte(client, LM93_REG_TEMP_MIN(i));
 951                 data->temp_lim[i].max =
 952                         lm93_read_byte(client, LM93_REG_TEMP_MAX(i));
 953         }
 954
 955         /* config register */
 956         data->config = lm93_read_byte(client, LM93_REG_CONFIG);
 957
 958         /* vid1 - vid2: values */
 959         for (i = 0; i < 2; i++)
 960                 data->vid[i] = lm93_read_byte(client, LM93_REG_VID(i));
 961
 962         /* prochot1 - prochot2: limits */
 963         for (i = 0; i < 2; i++)
 964                 data->prochot_max[i] = lm93_read_byte(client,
 965                                 LM93_REG_PROCHOT_MAX(i));
 966
 967         /* vccp1 - vccp2: VID relative limits */
 968         for (i = 0; i < 2; i++)
 969                 data->vccp_limits[i] = lm93_read_byte(client,
 970                                 LM93_REG_VCCP_LIMIT_OFF(i));
 971
 972         /* GPIO input state */
 973         data->gpi = lm93_read_byte(client, LM93_REG_GPI);
 974
 975         /* #PROCHOT override state */
 976         data->prochot_override = lm93_read_byte(client,
 977                         LM93_REG_PROCHOT_OVERRIDE);
 978
 979         /* #PROCHOT intervals */
 980         data->prochot_interval = lm93_read_byte(client,
 981                         LM93_REG_PROCHOT_INTERVAL);
 982
 983         /* Fan Boost Temperature registers */
 984         for (i = 0; i < 4; i++)
 985                 data->boost[i] = lm93_read_byte(client, LM93_REG_BOOST(i));
 986
 987         /* Fan Boost Temperature Hyst. registers */
 988         data->boost_hyst[0] = lm93_read_byte(client, LM93_REG_BOOST_HYST_12);
 989         data->boost_hyst[1] = lm93_read_byte(client, LM93_REG_BOOST_HYST_34);
 990
 991         /* Temperature Zone Min. PWM & Hysteresis registers */
 992         data->auto_pwm_min_hyst[0] =
 993                         lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_12);
 994         data->auto_pwm_min_hyst[1] =
 995                         lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_34);
 996
 997         /* #PROCHOT & #VRDHOT PWM Ramp Control register */
 998         data->pwm_ramp_ctl = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
 999
1000         /* misc setup registers */
1001         data->sfc1 = lm93_read_byte(client, LM93_REG_SFC1);
1002         data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1003         data->sf_tach_to_pwm = lm93_read_byte(client,
1004                         LM93_REG_SF_TACH_TO_PWM);
1005
1006         /* write back alarm values to clear */
1007         for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++)
1008                 lm93_write_byte(client, LM93_REG_HOST_ERROR_1 + i, *(ptr + i));
1009 }
1010
1011 /* update routine which uses SMBus block data commands */
1012 static void lm93_update_client_full(struct lm93_data *data,
1013                                     struct i2c_client *client)
1014 {
1015         dev_dbg(&client->dev, "starting device update (block data enabled)\n");
1016
1017         /* in1 - in16: values & limits */
1018         lm93_read_block(client, 3, (u8 *)(data->block3));
1019         lm93_read_block(client, 7, (u8 *)(data->block7));
1020
1021         /* temp1 - temp4: values */
1022         lm93_read_block(client, 2, (u8 *)(data->block2));
1023
1024         /* prochot1 - prochot2: values */
1025         lm93_read_block(client, 4, (u8 *)(data->block4));
1026
1027         /* fan1 - fan4: values & limits */
1028         lm93_read_block(client, 5, (u8 *)(data->block5));
1029         lm93_read_block(client, 8, (u8 *)(data->block8));
1030
1031         /* pmw control registers */
1032         lm93_read_block(client, 9, (u8 *)(data->block9));
1033
1034         /* alarm values */
1035         lm93_read_block(client, 1, (u8 *)(&data->block1));
1036
1037         /* auto/pwm registers */
1038         lm93_read_block(client, 10, (u8 *)(&data->block10));
1039
1040         lm93_update_client_common(data, client);
1041 }
1042
1043 /* update routine which uses SMBus byte/word data commands only */
1044 static void lm93_update_client_min(struct lm93_data *data,
1045                                    struct i2c_client *client)
1046 {
1047         int i, j;
1048         u8 *ptr;
1049
1050         dev_dbg(&client->dev, "starting device update (block data disabled)\n");
1051
1052         /* in1 - in16: values & limits */
1053         for (i = 0; i < 16; i++) {
1054                 data->block3[i] =
1055                         lm93_read_byte(client, LM93_REG_IN(i));
1056                 data->block7[i].min =
1057                         lm93_read_byte(client, LM93_REG_IN_MIN(i));
1058                 data->block7[i].max =
1059                         lm93_read_byte(client, LM93_REG_IN_MAX(i));
1060         }
1061
1062         /* temp1 - temp4: values */
1063         for (i = 0; i < 4; i++) {
1064                 data->block2[i] =
1065                         lm93_read_byte(client, LM93_REG_TEMP(i));
1066         }
1067
1068         /* prochot1 - prochot2: values */
1069         for (i = 0; i < 2; i++) {
1070                 data->block4[i].cur =
1071                         lm93_read_byte(client, LM93_REG_PROCHOT_CUR(i));
1072                 data->block4[i].avg =
1073                         lm93_read_byte(client, LM93_REG_PROCHOT_AVG(i));
1074         }
1075
1076         /* fan1 - fan4: values & limits */
1077         for (i = 0; i < 4; i++) {
1078                 data->block5[i] =
1079                         lm93_read_word(client, LM93_REG_FAN(i));
1080                 data->block8[i] =
1081                         lm93_read_word(client, LM93_REG_FAN_MIN(i));
1082         }
1083
1084         /* pwm control registers */
1085         for (i = 0; i < 2; i++) {
1086                 for (j = 0; j < 4; j++) {
1087                         data->block9[i][j] =
1088                                 lm93_read_byte(client, LM93_REG_PWM_CTL(i, j));
1089                 }
1090         }
1091
1092         /* alarm values */
1093         for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++) {
1094                 *(ptr + i) =
1095                         lm93_read_byte(client, LM93_REG_HOST_ERROR_1 + i);
1096         }
1097
1098         /* auto/pwm (base temp) registers */
1099         for (i = 0; i < 4; i++) {
1100                 data->block10.base[i] =
1101                         lm93_read_byte(client, LM93_REG_TEMP_BASE(i));
1102         }
1103
1104         /* auto/pwm (offset temp) registers */
1105         for (i = 0; i < 12; i++) {
1106                 data->block10.offset[i] =
1107                         lm93_read_byte(client, LM93_REG_TEMP_OFFSET(i));
1108         }
1109
1110         lm93_update_client_common(data, client);
1111 }
1112
1113 /* following are the sysfs callback functions */
1114 static ssize_t in_show(struct device *dev, struct device_attribute *attr,
1115                        char *buf)
1116 {
1117         int nr = (to_sensor_dev_attr(attr))->index;
1118
1119         struct lm93_data *data = lm93_update_device(dev);
1120         return sprintf(buf, "%d\n", LM93_IN_FROM_REG(nr, data->block3[nr]));
1121 }
1122
1123 static SENSOR_DEVICE_ATTR_RO(in1_input, in, 0);
1124 static SENSOR_DEVICE_ATTR_RO(in2_input, in, 1);
1125 static SENSOR_DEVICE_ATTR_RO(in3_input, in, 2);
1126 static SENSOR_DEVICE_ATTR_RO(in4_input, in, 3);
1127 static SENSOR_DEVICE_ATTR_RO(in5_input, in, 4);
1128 static SENSOR_DEVICE_ATTR_RO(in6_input, in, 5);
1129 static SENSOR_DEVICE_ATTR_RO(in7_input, in, 6);
1130 static SENSOR_DEVICE_ATTR_RO(in8_input, in, 7);
1131 static SENSOR_DEVICE_ATTR_RO(in9_input, in, 8);
1132 static SENSOR_DEVICE_ATTR_RO(in10_input, in, 9);
1133 static SENSOR_DEVICE_ATTR_RO(in11_input, in, 10);
1134 static SENSOR_DEVICE_ATTR_RO(in12_input, in, 11);
1135 static SENSOR_DEVICE_ATTR_RO(in13_input, in, 12);
1136 static SENSOR_DEVICE_ATTR_RO(in14_input, in, 13);
1137 static SENSOR_DEVICE_ATTR_RO(in15_input, in, 14);
1138 static SENSOR_DEVICE_ATTR_RO(in16_input, in, 15);
1139
1140 static ssize_t in_min_show(struct device *dev, struct device_attribute *attr,
1141                            char *buf)
1142 {
1143         int nr = (to_sensor_dev_attr(attr))->index;
1144         struct lm93_data *data = lm93_update_device(dev);
1145         int vccp = nr - 6;
1146         long rc, vid;
1147
1148         if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1149                 vid = LM93_VID_FROM_REG(data->vid[vccp]);
1150                 rc = LM93_IN_MIN_FROM_REG(data->vccp_limits[vccp], vid);
1151         } else {
1152                 rc = LM93_IN_FROM_REG(nr, data->block7[nr].min);
1153         }
1154         return sprintf(buf, "%ld\n", rc);
1155 }
1156
1157 static ssize_t in_min_store(struct device *dev, struct device_attribute *attr,
1158                             const char *buf, size_t count)
1159 {
1160         int nr = (to_sensor_dev_attr(attr))->index;
1161         struct lm93_data *data = dev_get_drvdata(dev);
1162         struct i2c_client *client = data->client;
1163         int vccp = nr - 6;
1164         long vid;
1165         unsigned long val;
1166         int err;
1167
1168         err = kstrtoul(buf, 10, &val);
1169         if (err)
1170                 return err;
1171
1172         mutex_lock(&data->update_lock);
1173         if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1174                 vid = LM93_VID_FROM_REG(data->vid[vccp]);
1175                 data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0xf0) |
1176                                 LM93_IN_REL_TO_REG(val, 0, vid);
1177                 lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
1178                                 data->vccp_limits[vccp]);
1179         } else {
1180                 data->block7[nr].min = LM93_IN_TO_REG(nr, val);
1181                 lm93_write_byte(client, LM93_REG_IN_MIN(nr),
1182                                 data->block7[nr].min);
1183         }
1184         mutex_unlock(&data->update_lock);
1185         return count;
1186 }
1187
1188 static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 0);
1189 static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 1);
1190 static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 2);
1191 static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 3);
1192 static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 4);
1193 static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 5);
1194 static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 6);
1195 static SENSOR_DEVICE_ATTR_RW(in8_min, in_min, 7);
1196 static SENSOR_DEVICE_ATTR_RW(in9_min, in_min, 8);
1197 static SENSOR_DEVICE_ATTR_RW(in10_min, in_min, 9);
1198 static SENSOR_DEVICE_ATTR_RW(in11_min, in_min, 10);
1199 static SENSOR_DEVICE_ATTR_RW(in12_min, in_min, 11);
1200 static SENSOR_DEVICE_ATTR_RW(in13_min, in_min, 12);
1201 static SENSOR_DEVICE_ATTR_RW(in14_min, in_min, 13);
1202 static SENSOR_DEVICE_ATTR_RW(in15_min, in_min, 14);
1203 static SENSOR_DEVICE_ATTR_RW(in16_min, in_min, 15);
1204
1205 static ssize_t in_max_show(struct device *dev, struct device_attribute *attr,
1206                            char *buf)
1207 {
1208         int nr = (to_sensor_dev_attr(attr))->index;
1209         struct lm93_data *data = lm93_update_device(dev);
1210         int vccp = nr - 6;
1211         long rc, vid;
1212
1213         if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1214                 vid = LM93_VID_FROM_REG(data->vid[vccp]);
1215                 rc = LM93_IN_MAX_FROM_REG(data->vccp_limits[vccp], vid);
1216         } else {
1217                 rc = LM93_IN_FROM_REG(nr, data->block7[nr].max);
1218         }
1219         return sprintf(buf, "%ld\n", rc);
1220 }
1221
1222 static ssize_t in_max_store(struct device *dev, struct device_attribute *attr,
1223                             const char *buf, size_t count)
1224 {
1225         int nr = (to_sensor_dev_attr(attr))->index;
1226         struct lm93_data *data = dev_get_drvdata(dev);
1227         struct i2c_client *client = data->client;
1228         int vccp = nr - 6;
1229         long vid;
1230         unsigned long val;
1231         int err;
1232
1233         err = kstrtoul(buf, 10, &val);
1234         if (err)
1235                 return err;
1236
1237         mutex_lock(&data->update_lock);
1238         if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1239                 vid = LM93_VID_FROM_REG(data->vid[vccp]);
1240                 data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0x0f) |
1241                                 LM93_IN_REL_TO_REG(val, 1, vid);
1242                 lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
1243                                 data->vccp_limits[vccp]);
1244         } else {
1245                 data->block7[nr].max = LM93_IN_TO_REG(nr, val);
1246                 lm93_write_byte(client, LM93_REG_IN_MAX(nr),
1247                                 data->block7[nr].max);
1248         }
1249         mutex_unlock(&data->update_lock);
1250         return count;
1251 }
1252
1253 static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 0);
1254 static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 1);
1255 static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 2);
1256 static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 3);
1257 static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 4);
1258 static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 5);
1259 static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 6);
1260 static SENSOR_DEVICE_ATTR_RW(in8_max, in_max, 7);
1261 static SENSOR_DEVICE_ATTR_RW(in9_max, in_max, 8);
1262 static SENSOR_DEVICE_ATTR_RW(in10_max, in_max, 9);
1263 static SENSOR_DEVICE_ATTR_RW(in11_max, in_max, 10);
1264 static SENSOR_DEVICE_ATTR_RW(in12_max, in_max, 11);
1265 static SENSOR_DEVICE_ATTR_RW(in13_max, in_max, 12);
1266 static SENSOR_DEVICE_ATTR_RW(in14_max, in_max, 13);
1267 static SENSOR_DEVICE_ATTR_RW(in15_max, in_max, 14);
1268 static SENSOR_DEVICE_ATTR_RW(in16_max, in_max, 15);
1269
1270 static ssize_t temp_show(struct device *dev, struct device_attribute *attr,
1271                          char *buf)
1272 {
1273         int nr = (to_sensor_dev_attr(attr))->index;
1274         struct lm93_data *data = lm93_update_device(dev);
1275         return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->block2[nr]));
1276 }
1277
1278 static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0);
1279 static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1);
1280 static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2);
1281
1282 static ssize_t temp_min_show(struct device *dev,
1283                              struct device_attribute *attr, char *buf)
1284 {
1285         int nr = (to_sensor_dev_attr(attr))->index;
1286         struct lm93_data *data = lm93_update_device(dev);
1287         return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->temp_lim[nr].min));
1288 }
1289
1290 static ssize_t temp_min_store(struct device *dev,
1291                               struct device_attribute *attr, const char *buf,
1292                               size_t count)
1293 {
1294         int nr = (to_sensor_dev_attr(attr))->index;
1295         struct lm93_data *data = dev_get_drvdata(dev);
1296         struct i2c_client *client = data->client;
1297         long val;
1298         int err;
1299
1300         err = kstrtol(buf, 10, &val);
1301         if (err)
1302                 return err;
1303
1304         mutex_lock(&data->update_lock);
1305         data->temp_lim[nr].min = LM93_TEMP_TO_REG(val);
1306         lm93_write_byte(client, LM93_REG_TEMP_MIN(nr), data->temp_lim[nr].min);
1307         mutex_unlock(&data->update_lock);
1308         return count;
1309 }
1310
1311 static SENSOR_DEVICE_ATTR_RW(temp1_min, temp_min, 0);
1312 static SENSOR_DEVICE_ATTR_RW(temp2_min, temp_min, 1);
1313 static SENSOR_DEVICE_ATTR_RW(temp3_min, temp_min, 2);
1314
1315 static ssize_t temp_max_show(struct device *dev,
1316                              struct device_attribute *attr, char *buf)
1317 {
1318         int nr = (to_sensor_dev_attr(attr))->index;
1319         struct lm93_data *data = lm93_update_device(dev);
1320         return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->temp_lim[nr].max));
1321 }
1322
1323 static ssize_t temp_max_store(struct device *dev,
1324                               struct device_attribute *attr, const char *buf,
1325                               size_t count)
1326 {
1327         int nr = (to_sensor_dev_attr(attr))->index;
1328         struct lm93_data *data = dev_get_drvdata(dev);
1329         struct i2c_client *client = data->client;
1330         long val;
1331         int err;
1332
1333         err = kstrtol(buf, 10, &val);
1334         if (err)
1335                 return err;
1336
1337         mutex_lock(&data->update_lock);
1338         data->temp_lim[nr].max = LM93_TEMP_TO_REG(val);
1339         lm93_write_byte(client, LM93_REG_TEMP_MAX(nr), data->temp_lim[nr].max);
1340         mutex_unlock(&data->update_lock);
1341         return count;
1342 }
1343
1344 static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0);
1345 static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1);
1346 static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2);
1347
1348 static ssize_t temp_auto_base_show(struct device *dev,
1349                                    struct device_attribute *attr, char *buf)
1350 {
1351         int nr = (to_sensor_dev_attr(attr))->index;
1352         struct lm93_data *data = lm93_update_device(dev);
1353         return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->block10.base[nr]));
1354 }
1355
1356 static ssize_t temp_auto_base_store(struct device *dev,
1357                                     struct device_attribute *attr,
1358                                     const char *buf, size_t count)
1359 {
1360         int nr = (to_sensor_dev_attr(attr))->index;
1361         struct lm93_data *data = dev_get_drvdata(dev);
1362         struct i2c_client *client = data->client;
1363         long val;
1364         int err;
1365
1366         err = kstrtol(buf, 10, &val);
1367         if (err)
1368                 return err;
1369
1370         mutex_lock(&data->update_lock);
1371         data->block10.base[nr] = LM93_TEMP_TO_REG(val);
1372         lm93_write_byte(client, LM93_REG_TEMP_BASE(nr), data->block10.base[nr]);
1373         mutex_unlock(&data->update_lock);
1374         return count;
1375 }
1376
1377 static SENSOR_DEVICE_ATTR_RW(temp1_auto_base, temp_auto_base, 0);
1378 static SENSOR_DEVICE_ATTR_RW(temp2_auto_base, temp_auto_base, 1);
1379 static SENSOR_DEVICE_ATTR_RW(temp3_auto_base, temp_auto_base, 2);
1380
1381 static ssize_t temp_auto_boost_show(struct device *dev,
1382                                     struct device_attribute *attr, char *buf)
1383 {
1384         int nr = (to_sensor_dev_attr(attr))->index;
1385         struct lm93_data *data = lm93_update_device(dev);
1386         return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->boost[nr]));
1387 }
1388
1389 static ssize_t temp_auto_boost_store(struct device *dev,
1390                                      struct device_attribute *attr,
1391                                      const char *buf, size_t count)
1392 {
1393         int nr = (to_sensor_dev_attr(attr))->index;
1394         struct lm93_data *data = dev_get_drvdata(dev);
1395         struct i2c_client *client = data->client;
1396         long val;
1397         int err;
1398
1399         err = kstrtol(buf, 10, &val);
1400         if (err)
1401                 return err;
1402
1403         mutex_lock(&data->update_lock);
1404         data->boost[nr] = LM93_TEMP_TO_REG(val);
1405         lm93_write_byte(client, LM93_REG_BOOST(nr), data->boost[nr]);
1406         mutex_unlock(&data->update_lock);
1407         return count;
1408 }
1409
1410 static SENSOR_DEVICE_ATTR_RW(temp1_auto_boost, temp_auto_boost, 0);
1411 static SENSOR_DEVICE_ATTR_RW(temp2_auto_boost, temp_auto_boost, 1);
1412 static SENSOR_DEVICE_ATTR_RW(temp3_auto_boost, temp_auto_boost, 2);
1413
1414 static ssize_t temp_auto_boost_hyst_show(struct device *dev,
1415                                          struct device_attribute *attr,
1416                                          char *buf)
1417 {
1418         int nr = (to_sensor_dev_attr(attr))->index;
1419         struct lm93_data *data = lm93_update_device(dev);
1420         int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1421         return sprintf(buf, "%d\n",
1422                        LM93_AUTO_BOOST_HYST_FROM_REGS(data, nr, mode));
1423 }
1424
1425 static ssize_t temp_auto_boost_hyst_store(struct device *dev,
1426                                           struct device_attribute *attr,
1427                                           const char *buf, size_t count)
1428 {
1429         int nr = (to_sensor_dev_attr(attr))->index;
1430         struct lm93_data *data = dev_get_drvdata(dev);
1431         struct i2c_client *client = data->client;
1432         unsigned long val;
1433         int err;
1434
1435         err = kstrtoul(buf, 10, &val);
1436         if (err)
1437                 return err;
1438
1439         mutex_lock(&data->update_lock);
1440         /* force 0.5C/bit mode */
1441         data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1442         data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1443         lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1444         data->boost_hyst[nr/2] = LM93_AUTO_BOOST_HYST_TO_REG(data, val, nr, 1);
1445         lm93_write_byte(client, LM93_REG_BOOST_HYST(nr),
1446                         data->boost_hyst[nr/2]);
1447         mutex_unlock(&data->update_lock);
1448         return count;
1449 }
1450
1451 static SENSOR_DEVICE_ATTR_RW(temp1_auto_boost_hyst, temp_auto_boost_hyst, 0);
1452 static SENSOR_DEVICE_ATTR_RW(temp2_auto_boost_hyst, temp_auto_boost_hyst, 1);
1453 static SENSOR_DEVICE_ATTR_RW(temp3_auto_boost_hyst, temp_auto_boost_hyst, 2);
1454
1455 static ssize_t temp_auto_offset_show(struct device *dev,
1456                                      struct device_attribute *attr, char *buf)
1457 {
1458         struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
1459         int nr = s_attr->index;
1460         int ofs = s_attr->nr;
1461         struct lm93_data *data = lm93_update_device(dev);
1462         int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1463         return sprintf(buf, "%d\n",
1464                LM93_TEMP_AUTO_OFFSET_FROM_REG(data->block10.offset[ofs],
1465                                               nr, mode));
1466 }
1467
1468 static ssize_t temp_auto_offset_store(struct device *dev,
1469                                       struct device_attribute *attr,
1470                                       const char *buf, size_t count)
1471 {
1472         struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
1473         int nr = s_attr->index;
1474         int ofs = s_attr->nr;
1475         struct lm93_data *data = dev_get_drvdata(dev);
1476         struct i2c_client *client = data->client;
1477         unsigned long val;
1478         int err;
1479
1480         err = kstrtoul(buf, 10, &val);
1481         if (err)
1482                 return err;
1483
1484         mutex_lock(&data->update_lock);
1485         /* force 0.5C/bit mode */
1486         data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1487         data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1488         lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1489         data->block10.offset[ofs] = LM93_TEMP_AUTO_OFFSET_TO_REG(
1490                         data->block10.offset[ofs], val, nr, 1);
1491         lm93_write_byte(client, LM93_REG_TEMP_OFFSET(ofs),
1492                         data->block10.offset[ofs]);
1493         mutex_unlock(&data->update_lock);
1494         return count;
1495 }
1496
1497 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset1, temp_auto_offset, 0, 0);
1498 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset2, temp_auto_offset, 1, 0);
1499 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset3, temp_auto_offset, 2, 0);
1500 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset4, temp_auto_offset, 3, 0);
1501 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset5, temp_auto_offset, 4, 0);
1502 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset6, temp_auto_offset, 5, 0);
1503 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset7, temp_auto_offset, 6, 0);
1504 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset8, temp_auto_offset, 7, 0);
1505 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset9, temp_auto_offset, 8, 0);
1506 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset10, temp_auto_offset, 9, 0);
1507 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset11, temp_auto_offset, 10, 0);
1508 static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_offset12, temp_auto_offset, 11, 0);
1509 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset1, temp_auto_offset, 0, 1);
1510 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset2, temp_auto_offset, 1, 1);
1511 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset3, temp_auto_offset, 2, 1);
1512 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset4, temp_auto_offset, 3, 1);
1513 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset5, temp_auto_offset, 4, 1);
1514 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset6, temp_auto_offset, 5, 1);
1515 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset7, temp_auto_offset, 6, 1);
1516 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset8, temp_auto_offset, 7, 1);
1517 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset9, temp_auto_offset, 8, 1);
1518 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset10, temp_auto_offset, 9, 1);
1519 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset11, temp_auto_offset, 10, 1);
1520 static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_offset12, temp_auto_offset, 11, 1);
1521 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset1, temp_auto_offset, 0, 2);
1522 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset2, temp_auto_offset, 1, 2);
1523 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset3, temp_auto_offset, 2, 2);
1524 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset4, temp_auto_offset, 3, 2);
1525 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset5, temp_auto_offset, 4, 2);
1526 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset6, temp_auto_offset, 5, 2);
1527 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset7, temp_auto_offset, 6, 2);
1528 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset8, temp_auto_offset, 7, 2);
1529 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset9, temp_auto_offset, 8, 2);
1530 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset10, temp_auto_offset, 9, 2);
1531 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset11, temp_auto_offset, 10, 2);
1532 static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_offset12, temp_auto_offset, 11, 2);
1533
1534 static ssize_t temp_auto_pwm_min_show(struct device *dev,
1535                                       struct device_attribute *attr,
1536                                       char *buf)
1537 {
1538         int nr = (to_sensor_dev_attr(attr))->index;
1539         u8 reg, ctl4;
1540         struct lm93_data *data = lm93_update_device(dev);
1541         reg = data->auto_pwm_min_hyst[nr/2] >> 4 & 0x0f;
1542         ctl4 = data->block9[nr][LM93_PWM_CTL4];
1543         return sprintf(buf, "%d\n", LM93_PWM_FROM_REG(reg, (ctl4 & 0x07) ?
1544                                 LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
1545 }
1546
1547 static ssize_t temp_auto_pwm_min_store(struct device *dev,
1548                                        struct device_attribute *attr,
1549                                        const char *buf, size_t count)
1550 {
1551         int nr = (to_sensor_dev_attr(attr))->index;
1552         struct lm93_data *data = dev_get_drvdata(dev);
1553         struct i2c_client *client = data->client;
1554         u8 reg, ctl4;
1555         unsigned long val;
1556         int err;
1557
1558         err = kstrtoul(buf, 10, &val);
1559         if (err)
1560                 return err;
1561
1562         mutex_lock(&data->update_lock);
1563         reg = lm93_read_byte(client, LM93_REG_PWM_MIN_HYST(nr));
1564         ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
1565         reg = (reg & 0x0f) |
1566                 LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
1567                                 LM93_PWM_MAP_LO_FREQ :
1568                                 LM93_PWM_MAP_HI_FREQ) << 4;
1569         data->auto_pwm_min_hyst[nr/2] = reg;
1570         lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
1571         mutex_unlock(&data->update_lock);
1572         return count;
1573 }
1574
1575 static SENSOR_DEVICE_ATTR_RW(temp1_auto_pwm_min, temp_auto_pwm_min, 0);
1576 static SENSOR_DEVICE_ATTR_RW(temp2_auto_pwm_min, temp_auto_pwm_min, 1);
1577 static SENSOR_DEVICE_ATTR_RW(temp3_auto_pwm_min, temp_auto_pwm_min, 2);
1578
1579 static ssize_t temp_auto_offset_hyst_show(struct device *dev,
1580                                           struct device_attribute *attr,
1581                                           char *buf)
1582 {
1583         int nr = (to_sensor_dev_attr(attr))->index;
1584         struct lm93_data *data = lm93_update_device(dev);
1585         int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1586         return sprintf(buf, "%d\n", LM93_TEMP_OFFSET_FROM_REG(
1587                                         data->auto_pwm_min_hyst[nr / 2], mode));
1588 }
1589
1590 static ssize_t temp_auto_offset_hyst_store(struct device *dev,
1591                                            struct device_attribute *attr,
1592                                            const char *buf, size_t count)
1593 {
1594         int nr = (to_sensor_dev_attr(attr))->index;
1595         struct lm93_data *data = dev_get_drvdata(dev);
1596         struct i2c_client *client = data->client;
1597         u8 reg;
1598         unsigned long val;
1599         int err;
1600
1601         err = kstrtoul(buf, 10, &val);
1602         if (err)
1603                 return err;
1604
1605         mutex_lock(&data->update_lock);
1606         /* force 0.5C/bit mode */
1607         data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1608         data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1609         lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1610         reg = data->auto_pwm_min_hyst[nr/2];
1611         reg = (reg & 0xf0) | (LM93_TEMP_OFFSET_TO_REG(val, 1) & 0x0f);
1612         data->auto_pwm_min_hyst[nr/2] = reg;
1613         lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
1614         mutex_unlock(&data->update_lock);
1615         return count;
1616 }
1617
1618 static SENSOR_DEVICE_ATTR_RW(temp1_auto_offset_hyst, temp_auto_offset_hyst, 0);
1619 static SENSOR_DEVICE_ATTR_RW(temp2_auto_offset_hyst, temp_auto_offset_hyst, 1);
1620 static SENSOR_DEVICE_ATTR_RW(temp3_auto_offset_hyst, temp_auto_offset_hyst, 2);
1621
1622 static ssize_t fan_input_show(struct device *dev,
1623                               struct device_attribute *attr, char *buf)
1624 {
1625         struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
1626         int nr = s_attr->index;
1627         struct lm93_data *data = lm93_update_device(dev);
1628
1629         return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block5[nr]));
1630 }
1631
1632 static SENSOR_DEVICE_ATTR_RO(fan1_input, fan_input, 0);
1633 static SENSOR_DEVICE_ATTR_RO(fan2_input, fan_input, 1);
1634 static SENSOR_DEVICE_ATTR_RO(fan3_input, fan_input, 2);
1635 static SENSOR_DEVICE_ATTR_RO(fan4_input, fan_input, 3);
1636
1637 static ssize_t fan_min_show(struct device *dev, struct device_attribute *attr,
1638                             char *buf)
1639 {
1640         int nr = (to_sensor_dev_attr(attr))->index;
1641         struct lm93_data *data = lm93_update_device(dev);
1642
1643         return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block8[nr]));
1644 }
1645
1646 static ssize_t fan_min_store(struct device *dev,
1647                              struct device_attribute *attr, const char *buf,
1648                              size_t count)
1649 {
1650         int nr = (to_sensor_dev_attr(attr))->index;
1651         struct lm93_data *data = dev_get_drvdata(dev);
1652         struct i2c_client *client = data->client;
1653         unsigned long val;
1654         int err;
1655
1656         err = kstrtoul(buf, 10, &val);
1657         if (err)
1658                 return err;
1659
1660         mutex_lock(&data->update_lock);
1661         data->block8[nr] = LM93_FAN_TO_REG(val);
1662         lm93_write_word(client, LM93_REG_FAN_MIN(nr), data->block8[nr]);
1663         mutex_unlock(&data->update_lock);
1664         return count;
1665 }
1666
1667 static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0);
1668 static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1);
1669 static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2);
1670 static SENSOR_DEVICE_ATTR_RW(fan4_min, fan_min, 3);
1671
1672 /*
1673  * some tedious bit-twiddling here to deal with the register format:
1674  *
1675  *      data->sf_tach_to_pwm: (tach to pwm mapping bits)
1676  *
1677  *              bit |  7  |  6  |  5  |  4  |  3  |  2  |  1  |  0
1678  *                   T4:P2 T4:P1 T3:P2 T3:P1 T2:P2 T2:P1 T1:P2 T1:P1
1679  *
1680  *      data->sfc2: (enable bits)
1681  *
1682  *              bit |  3  |  2  |  1  |  0
1683  *                     T4    T3    T2    T1
1684  */
1685
1686 static ssize_t fan_smart_tach_show(struct device *dev,
1687                                    struct device_attribute *attr, char *buf)
1688 {
1689         int nr = (to_sensor_dev_attr(attr))->index;
1690         struct lm93_data *data = lm93_update_device(dev);
1691         long rc = 0;
1692         int mapping;
1693
1694         /* extract the relevant mapping */
1695         mapping = (data->sf_tach_to_pwm >> (nr * 2)) & 0x03;
1696
1697         /* if there's a mapping and it's enabled */
1698         if (mapping && ((data->sfc2 >> nr) & 0x01))
1699                 rc = mapping;
1700         return sprintf(buf, "%ld\n", rc);
1701 }
1702
1703 /*
1704  * helper function - must grab data->update_lock before calling
1705  * fan is 0-3, indicating fan1-fan4
1706  */
1707 static void lm93_write_fan_smart_tach(struct i2c_client *client,
1708         struct lm93_data *data, int fan, long value)
1709 {
1710         /* insert the new mapping and write it out */
1711         data->sf_tach_to_pwm = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
1712         data->sf_tach_to_pwm &= ~(0x3 << fan * 2);
1713         data->sf_tach_to_pwm |= value << fan * 2;
1714         lm93_write_byte(client, LM93_REG_SF_TACH_TO_PWM, data->sf_tach_to_pwm);
1715
1716         /* insert the enable bit and write it out */
1717         data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1718         if (value)
1719                 data->sfc2 |= 1 << fan;
1720         else
1721                 data->sfc2 &= ~(1 << fan);
1722         lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1723 }
1724
1725 static ssize_t fan_smart_tach_store(struct device *dev,
1726                                     struct device_attribute *attr,
1727                                     const char *buf, size_t count)
1728 {
1729         int nr = (to_sensor_dev_attr(attr))->index;
1730         struct lm93_data *data = dev_get_drvdata(dev);
1731         struct i2c_client *client = data->client;
1732         unsigned long val;
1733         int err;
1734
1735         err = kstrtoul(buf, 10, &val);
1736         if (err)
1737                 return err;
1738
1739         mutex_lock(&data->update_lock);
1740         /* sanity test, ignore the write otherwise */
1741         if (val <= 2) {
1742                 /* can't enable if pwm freq is 22.5KHz */
1743                 if (val) {
1744                         u8 ctl4 = lm93_read_byte(client,
1745                                 LM93_REG_PWM_CTL(val - 1, LM93_PWM_CTL4));
1746                         if ((ctl4 & 0x07) == 0)
1747                                 val = 0;
1748                 }
1749                 lm93_write_fan_smart_tach(client, data, nr, val);
1750         }
1751         mutex_unlock(&data->update_lock);
1752         return count;
1753 }
1754
1755 static SENSOR_DEVICE_ATTR_RW(fan1_smart_tach, fan_smart_tach, 0);
1756 static SENSOR_DEVICE_ATTR_RW(fan2_smart_tach, fan_smart_tach, 1);
1757 static SENSOR_DEVICE_ATTR_RW(fan3_smart_tach, fan_smart_tach, 2);
1758 static SENSOR_DEVICE_ATTR_RW(fan4_smart_tach, fan_smart_tach, 3);
1759
1760 static ssize_t pwm_show(struct device *dev, struct device_attribute *attr,
1761                         char *buf)
1762 {
1763         int nr = (to_sensor_dev_attr(attr))->index;
1764         struct lm93_data *data = lm93_update_device(dev);
1765         u8 ctl2, ctl4;
1766         long rc;
1767
1768         ctl2 = data->block9[nr][LM93_PWM_CTL2];
1769         ctl4 = data->block9[nr][LM93_PWM_CTL4];
1770         if (ctl2 & 0x01) /* show user commanded value if enabled */
1771                 rc = data->pwm_override[nr];
1772         else /* show present h/w value if manual pwm disabled */
1773                 rc = LM93_PWM_FROM_REG(ctl2 >> 4, (ctl4 & 0x07) ?
1774                         LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ);
1775         return sprintf(buf, "%ld\n", rc);
1776 }
1777
1778 static ssize_t pwm_store(struct device *dev, struct device_attribute *attr,
1779                          const char *buf, size_t count)
1780 {
1781         int nr = (to_sensor_dev_attr(attr))->index;
1782         struct lm93_data *data = dev_get_drvdata(dev);
1783         struct i2c_client *client = data->client;
1784         u8 ctl2, ctl4;
1785         unsigned long val;
1786         int err;
1787
1788         err = kstrtoul(buf, 10, &val);
1789         if (err)
1790                 return err;
1791
1792         mutex_lock(&data->update_lock);
1793         ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2));
1794         ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
1795         ctl2 = (ctl2 & 0x0f) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
1796                         LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ) << 4;
1797         /* save user commanded value */
1798         data->pwm_override[nr] = LM93_PWM_FROM_REG(ctl2 >> 4,
1799                         (ctl4 & 0x07) ?  LM93_PWM_MAP_LO_FREQ :
1800                         LM93_PWM_MAP_HI_FREQ);
1801         lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2);
1802         mutex_unlock(&data->update_lock);
1803         return count;
1804 }
1805
1806 static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0);
1807 static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1);
1808
1809 static ssize_t pwm_enable_show(struct device *dev,
1810                                struct device_attribute *attr, char *buf)
1811 {
1812         int nr = (to_sensor_dev_attr(attr))->index;
1813         struct lm93_data *data = lm93_update_device(dev);
1814         u8 ctl2;
1815         long rc;
1816
1817         ctl2 = data->block9[nr][LM93_PWM_CTL2];
1818         if (ctl2 & 0x01) /* manual override enabled ? */
1819                 rc = ((ctl2 & 0xF0) == 0xF0) ? 0 : 1;
1820         else
1821                 rc = 2;
1822         return sprintf(buf, "%ld\n", rc);
1823 }
1824
1825 static ssize_t pwm_enable_store(struct device *dev,
1826                                 struct device_attribute *attr,
1827                                 const char *buf, size_t count)
1828 {
1829         int nr = (to_sensor_dev_attr(attr))->index;
1830         struct lm93_data *data = dev_get_drvdata(dev);
1831         struct i2c_client *client = data->client;
1832         u8 ctl2;
1833         unsigned long val;
1834         int err;
1835
1836         err = kstrtoul(buf, 10, &val);
1837         if (err)
1838                 return err;
1839
1840         mutex_lock(&data->update_lock);
1841         ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2));
1842
1843         switch (val) {
1844         case 0:
1845                 ctl2 |= 0xF1; /* enable manual override, set PWM to max */
1846                 break;
1847         case 1:
1848                 ctl2 |= 0x01; /* enable manual override */
1849                 break;
1850         case 2:
1851                 ctl2 &= ~0x01; /* disable manual override */
1852                 break;
1853         default:
1854                 mutex_unlock(&data->update_lock);
1855                 return -EINVAL;
1856         }
1857
1858         lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2);
1859         mutex_unlock(&data->update_lock);
1860         return count;
1861 }
1862
1863 static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm_enable, 0);
1864 static SENSOR_DEVICE_ATTR_RW(pwm2_enable, pwm_enable, 1);
1865
1866 static ssize_t pwm_freq_show(struct device *dev,
1867                              struct device_attribute *attr, char *buf)
1868 {
1869         int nr = (to_sensor_dev_attr(attr))->index;
1870         struct lm93_data *data = lm93_update_device(dev);
1871         u8 ctl4;
1872
1873         ctl4 = data->block9[nr][LM93_PWM_CTL4];
1874         return sprintf(buf, "%d\n", LM93_PWM_FREQ_FROM_REG(ctl4));
1875 }
1876
1877 /*
1878  * helper function - must grab data->update_lock before calling
1879  * pwm is 0-1, indicating pwm1-pwm2
1880  * this disables smart tach for all tach channels bound to the given pwm
1881  */
1882 static void lm93_disable_fan_smart_tach(struct i2c_client *client,
1883         struct lm93_data *data, int pwm)
1884 {
1885         int mapping = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
1886         int mask;
1887
1888         /* collapse the mapping into a mask of enable bits */
1889         mapping = (mapping >> pwm) & 0x55;
1890         mask = mapping & 0x01;
1891         mask |= (mapping & 0x04) >> 1;
1892         mask |= (mapping & 0x10) >> 2;
1893         mask |= (mapping & 0x40) >> 3;
1894
1895         /* disable smart tach according to the mask */
1896         data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1897         data->sfc2 &= ~mask;
1898         lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1899 }
1900
1901 static ssize_t pwm_freq_store(struct device *dev,
1902                               struct device_attribute *attr, const char *buf,
1903                               size_t count)
1904 {
1905         int nr = (to_sensor_dev_attr(attr))->index;
1906         struct lm93_data *data = dev_get_drvdata(dev);
1907         struct i2c_client *client = data->client;
1908         u8 ctl4;
1909         unsigned long val;
1910         int err;
1911
1912         err = kstrtoul(buf, 10, &val);
1913         if (err)
1914                 return err;
1915
1916         mutex_lock(&data->update_lock);
1917         ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
1918         ctl4 = (ctl4 & 0xf8) | LM93_PWM_FREQ_TO_REG(val);
1919         data->block9[nr][LM93_PWM_CTL4] = ctl4;
1920         /* ctl4 == 0 -> 22.5KHz -> disable smart tach */
1921         if (!ctl4)
1922                 lm93_disable_fan_smart_tach(client, data, nr);
1923         lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4), ctl4);
1924         mutex_unlock(&data->update_lock);
1925         return count;
1926 }
1927
1928 static SENSOR_DEVICE_ATTR_RW(pwm1_freq, pwm_freq, 0);
1929 static SENSOR_DEVICE_ATTR_RW(pwm2_freq, pwm_freq, 1);
1930
1931 static ssize_t pwm_auto_channels_show(struct device *dev,
1932                                       struct device_attribute *attr,
1933                                       char *buf)
1934 {
1935         int nr = (to_sensor_dev_attr(attr))->index;
1936         struct lm93_data *data = lm93_update_device(dev);
1937         return sprintf(buf, "%d\n", data->block9[nr][LM93_PWM_CTL1]);
1938 }
1939
1940 static ssize_t pwm_auto_channels_store(struct device *dev,
1941                                        struct device_attribute *attr,
1942                                        const char *buf, size_t count)
1943 {
1944         int nr = (to_sensor_dev_attr(attr))->index;
1945         struct lm93_data *data = dev_get_drvdata(dev);
1946         struct i2c_client *client = data->client;
1947         unsigned long val;
1948         int err;
1949
1950         err = kstrtoul(buf, 10, &val);
1951         if (err)
1952                 return err;
1953
1954         mutex_lock(&data->update_lock);
1955         data->block9[nr][LM93_PWM_CTL1] = clamp_val(val, 0, 255);
1956         lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL1),
1957                                 data->block9[nr][LM93_PWM_CTL1]);
1958         mutex_unlock(&data->update_lock);
1959         return count;
1960 }
1961
1962 static SENSOR_DEVICE_ATTR_RW(pwm1_auto_channels, pwm_auto_channels, 0);
1963 static SENSOR_DEVICE_ATTR_RW(pwm2_auto_channels, pwm_auto_channels, 1);
1964
1965 static ssize_t pwm_auto_spinup_min_show(struct device *dev,
1966                                         struct device_attribute *attr,
1967                                         char *buf)
1968 {
1969         int nr = (to_sensor_dev_attr(attr))->index;
1970         struct lm93_data *data = lm93_update_device(dev);
1971         u8 ctl3, ctl4;
1972
1973         ctl3 = data->block9[nr][LM93_PWM_CTL3];
1974         ctl4 = data->block9[nr][LM93_PWM_CTL4];
1975         return sprintf(buf, "%d\n",
1976                        LM93_PWM_FROM_REG(ctl3 & 0x0f, (ctl4 & 0x07) ?
1977                         LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
1978 }
1979
1980 static ssize_t pwm_auto_spinup_min_store(struct device *dev,
1981                                          struct device_attribute *attr,
1982                                          const char *buf, size_t count)
1983 {
1984         int nr = (to_sensor_dev_attr(attr))->index;
1985         struct lm93_data *data = dev_get_drvdata(dev);
1986         struct i2c_client *client = data->client;
1987         u8 ctl3, ctl4;
1988         unsigned long val;
1989         int err;
1990
1991         err = kstrtoul(buf, 10, &val);
1992         if (err)
1993                 return err;
1994
1995         mutex_lock(&data->update_lock);
1996         ctl3 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
1997         ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
1998         ctl3 = (ctl3 & 0xf0) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
1999                         LM93_PWM_MAP_LO_FREQ :
2000                         LM93_PWM_MAP_HI_FREQ);
2001         data->block9[nr][LM93_PWM_CTL3] = ctl3;
2002         lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
2003         mutex_unlock(&data->update_lock);
2004         return count;
2005 }
2006
2007 static SENSOR_DEVICE_ATTR_RW(pwm1_auto_spinup_min, pwm_auto_spinup_min, 0);
2008 static SENSOR_DEVICE_ATTR_RW(pwm2_auto_spinup_min, pwm_auto_spinup_min, 1);
2009
2010 static ssize_t pwm_auto_spinup_time_show(struct device *dev,
2011                                          struct device_attribute *attr,
2012                                          char *buf)
2013 {
2014         int nr = (to_sensor_dev_attr(attr))->index;
2015         struct lm93_data *data = lm93_update_device(dev);
2016         return sprintf(buf, "%d\n", LM93_SPINUP_TIME_FROM_REG(
2017                                 data->block9[nr][LM93_PWM_CTL3]));
2018 }
2019
2020 static ssize_t pwm_auto_spinup_time_store(struct device *dev,
2021                                           struct device_attribute *attr,
2022                                           const char *buf, size_t count)
2023 {
2024         int nr = (to_sensor_dev_attr(attr))->index;
2025         struct lm93_data *data = dev_get_drvdata(dev);
2026         struct i2c_client *client = data->client;
2027         u8 ctl3;
2028         unsigned long val;
2029         int err;
2030
2031         err = kstrtoul(buf, 10, &val);
2032         if (err)
2033                 return err;
2034
2035         mutex_lock(&data->update_lock);
2036         ctl3 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
2037         ctl3 = (ctl3 & 0x1f) | (LM93_SPINUP_TIME_TO_REG(val) << 5 & 0xe0);
2038         data->block9[nr][LM93_PWM_CTL3] = ctl3;
2039         lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
2040         mutex_unlock(&data->update_lock);
2041         return count;
2042 }
2043
2044 static SENSOR_DEVICE_ATTR_RW(pwm1_auto_spinup_time, pwm_auto_spinup_time, 0);
2045 static SENSOR_DEVICE_ATTR_RW(pwm2_auto_spinup_time, pwm_auto_spinup_time, 1);
2046
2047 static ssize_t pwm_auto_prochot_ramp_show(struct device *dev,
2048                                 struct device_attribute *attr, char *buf)
2049 {
2050         struct lm93_data *data = lm93_update_device(dev);
2051         return sprintf(buf, "%d\n",
2052                        LM93_RAMP_FROM_REG(data->pwm_ramp_ctl >> 4 & 0x0f));
2053 }
2054
2055 static ssize_t pwm_auto_prochot_ramp_store(struct device *dev,
2056                                                 struct device_attribute *attr,
2057                                                 const char *buf, size_t count)
2058 {
2059         struct lm93_data *data = dev_get_drvdata(dev);
2060         struct i2c_client *client = data->client;
2061         u8 ramp;
2062         unsigned long val;
2063         int err;
2064
2065         err = kstrtoul(buf, 10, &val);
2066         if (err)
2067                 return err;
2068
2069         mutex_lock(&data->update_lock);
2070         ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
2071         ramp = (ramp & 0x0f) | (LM93_RAMP_TO_REG(val) << 4 & 0xf0);
2072         lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
2073         mutex_unlock(&data->update_lock);
2074         return count;
2075 }
2076
2077 static DEVICE_ATTR_RW(pwm_auto_prochot_ramp);
2078
2079 static ssize_t pwm_auto_vrdhot_ramp_show(struct device *dev,
2080                                 struct device_attribute *attr, char *buf)
2081 {
2082         struct lm93_data *data = lm93_update_device(dev);
2083         return sprintf(buf, "%d\n",
2084                        LM93_RAMP_FROM_REG(data->pwm_ramp_ctl & 0x0f));
2085 }
2086
2087 static ssize_t pwm_auto_vrdhot_ramp_store(struct device *dev,
2088                                                 struct device_attribute *attr,
2089                                                 const char *buf, size_t count)
2090 {
2091         struct lm93_data *data = dev_get_drvdata(dev);
2092         struct i2c_client *client = data->client;
2093         u8 ramp;
2094         unsigned long val;
2095         int err;
2096
2097         err = kstrtoul(buf, 10, &val);
2098         if (err)
2099                 return err;
2100
2101         mutex_lock(&data->update_lock);
2102         ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
2103         ramp = (ramp & 0xf0) | (LM93_RAMP_TO_REG(val) & 0x0f);
2104         lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
2105         mutex_unlock(&data->update_lock);
2106         return 0;
2107 }
2108
2109 static DEVICE_ATTR_RW(pwm_auto_vrdhot_ramp);
2110
2111 static ssize_t vid_show(struct device *dev, struct device_attribute *attr,
2112                         char *buf)
2113 {
2114         int nr = (to_sensor_dev_attr(attr))->index;
2115         struct lm93_data *data = lm93_update_device(dev);
2116         return sprintf(buf, "%d\n", LM93_VID_FROM_REG(data->vid[nr]));
2117 }
2118
2119 static SENSOR_DEVICE_ATTR_RO(cpu0_vid, vid, 0);
2120 static SENSOR_DEVICE_ATTR_RO(cpu1_vid, vid, 1);
2121
2122 static ssize_t prochot_show(struct device *dev, struct device_attribute *attr,
2123                             char *buf)
2124 {
2125         int nr = (to_sensor_dev_attr(attr))->index;
2126         struct lm93_data *data = lm93_update_device(dev);
2127         return sprintf(buf, "%d\n", data->block4[nr].cur);
2128 }
2129
2130 static SENSOR_DEVICE_ATTR_RO(prochot1, prochot, 0);
2131 static SENSOR_DEVICE_ATTR_RO(prochot2, prochot, 1);
2132
2133 static ssize_t prochot_avg_show(struct device *dev,
2134                                 struct device_attribute *attr, char *buf)
2135 {
2136         int nr = (to_sensor_dev_attr(attr))->index;
2137         struct lm93_data *data = lm93_update_device(dev);
2138         return sprintf(buf, "%d\n", data->block4[nr].avg);
2139 }
2140
2141 static SENSOR_DEVICE_ATTR_RO(prochot1_avg, prochot_avg, 0);
2142 static SENSOR_DEVICE_ATTR_RO(prochot2_avg, prochot_avg, 1);
2143
2144 static ssize_t prochot_max_show(struct device *dev,
2145                                 struct device_attribute *attr, char *buf)
2146 {
2147         int nr = (to_sensor_dev_attr(attr))->index;
2148         struct lm93_data *data = lm93_update_device(dev);
2149         return sprintf(buf, "%d\n", data->prochot_max[nr]);
2150 }
2151
2152 static ssize_t prochot_max_store(struct device *dev,
2153                                  struct device_attribute *attr,
2154                                  const char *buf, size_t count)
2155 {
2156         int nr = (to_sensor_dev_attr(attr))->index;
2157         struct lm93_data *data = dev_get_drvdata(dev);
2158         struct i2c_client *client = data->client;
2159         unsigned long val;
2160         int err;
2161
2162         err = kstrtoul(buf, 10, &val);
2163         if (err)
2164                 return err;
2165
2166         mutex_lock(&data->update_lock);
2167         data->prochot_max[nr] = LM93_PROCHOT_TO_REG(val);
2168         lm93_write_byte(client, LM93_REG_PROCHOT_MAX(nr),
2169                         data->prochot_max[nr]);
2170         mutex_unlock(&data->update_lock);
2171         return count;
2172 }
2173
2174 static SENSOR_DEVICE_ATTR_RW(prochot1_max, prochot_max, 0);
2175 static SENSOR_DEVICE_ATTR_RW(prochot2_max, prochot_max, 1);
2176
2177 static const u8 prochot_override_mask[] = { 0x80, 0x40 };
2178
2179 static ssize_t prochot_override_show(struct device *dev,
2180                                      struct device_attribute *attr, char *buf)
2181 {
2182         int nr = (to_sensor_dev_attr(attr))->index;
2183         struct lm93_data *data = lm93_update_device(dev);
2184         return sprintf(buf, "%d\n",
2185                 (data->prochot_override & prochot_override_mask[nr]) ? 1 : 0);
2186 }
2187
2188 static ssize_t prochot_override_store(struct device *dev,
2189                                       struct device_attribute *attr,
2190                                       const char *buf, size_t count)
2191 {
2192         int nr = (to_sensor_dev_attr(attr))->index;
2193         struct lm93_data *data = dev_get_drvdata(dev);
2194         struct i2c_client *client = data->client;
2195         unsigned long val;
2196         int err;
2197
2198         err = kstrtoul(buf, 10, &val);
2199         if (err)
2200                 return err;
2201
2202         mutex_lock(&data->update_lock);
2203         if (val)
2204                 data->prochot_override |= prochot_override_mask[nr];
2205         else
2206                 data->prochot_override &= (~prochot_override_mask[nr]);
2207         lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
2208                         data->prochot_override);
2209         mutex_unlock(&data->update_lock);
2210         return count;
2211 }
2212
2213 static SENSOR_DEVICE_ATTR_RW(prochot1_override, prochot_override, 0);
2214 static SENSOR_DEVICE_ATTR_RW(prochot2_override, prochot_override, 1);
2215
2216 static ssize_t prochot_interval_show(struct device *dev,
2217                                      struct device_attribute *attr, char *buf)
2218 {
2219         int nr = (to_sensor_dev_attr(attr))->index;
2220         struct lm93_data *data = lm93_update_device(dev);
2221         u8 tmp;
2222         if (nr == 1)
2223                 tmp = (data->prochot_interval & 0xf0) >> 4;
2224         else
2225                 tmp = data->prochot_interval & 0x0f;
2226         return sprintf(buf, "%d\n", LM93_INTERVAL_FROM_REG(tmp));
2227 }
2228
2229 static ssize_t prochot_interval_store(struct device *dev,
2230                                       struct device_attribute *attr,
2231                                       const char *buf, size_t count)
2232 {
2233         int nr = (to_sensor_dev_attr(attr))->index;
2234         struct lm93_data *data = dev_get_drvdata(dev);
2235         struct i2c_client *client = data->client;
2236         u8 tmp;
2237         unsigned long val;
2238         int err;
2239
2240         err = kstrtoul(buf, 10, &val);
2241         if (err)
2242                 return err;
2243
2244         mutex_lock(&data->update_lock);
2245         tmp = lm93_read_byte(client, LM93_REG_PROCHOT_INTERVAL);
2246         if (nr == 1)
2247                 tmp = (tmp & 0x0f) | (LM93_INTERVAL_TO_REG(val) << 4);
2248         else
2249                 tmp = (tmp & 0xf0) | LM93_INTERVAL_TO_REG(val);
2250         data->prochot_interval = tmp;
2251         lm93_write_byte(client, LM93_REG_PROCHOT_INTERVAL, tmp);
2252         mutex_unlock(&data->update_lock);
2253         return count;
2254 }
2255
2256 static SENSOR_DEVICE_ATTR_RW(prochot1_interval, prochot_interval, 0);
2257 static SENSOR_DEVICE_ATTR_RW(prochot2_interval, prochot_interval, 1);
2258
2259 static ssize_t prochot_override_duty_cycle_show(struct device *dev,
2260                                                 struct device_attribute *attr,
2261                                                 char *buf)
2262 {
2263         struct lm93_data *data = lm93_update_device(dev);
2264         return sprintf(buf, "%d\n", data->prochot_override & 0x0f);
2265 }
2266
2267 static ssize_t prochot_override_duty_cycle_store(struct device *dev,
2268                                                 struct device_attribute *attr,
2269                                                 const char *buf, size_t count)
2270 {
2271         struct lm93_data *data = dev_get_drvdata(dev);
2272         struct i2c_client *client = data->client;
2273         unsigned long val;
2274         int err;
2275
2276         err = kstrtoul(buf, 10, &val);
2277         if (err)
2278                 return err;
2279
2280         mutex_lock(&data->update_lock);
2281         data->prochot_override = (data->prochot_override & 0xf0) |
2282                                         clamp_val(val, 0, 15);
2283         lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
2284                         data->prochot_override);
2285         mutex_unlock(&data->update_lock);
2286         return count;
2287 }
2288
2289 static DEVICE_ATTR_RW(prochot_override_duty_cycle);
2290
2291 static ssize_t prochot_short_show(struct device *dev,
2292                                 struct device_attribute *attr, char *buf)
2293 {
2294         struct lm93_data *data = lm93_update_device(dev);
2295         return sprintf(buf, "%d\n", (data->config & 0x10) ? 1 : 0);
2296 }
2297
2298 static ssize_t prochot_short_store(struct device *dev,
2299                                         struct device_attribute *attr,
2300                                         const char *buf, size_t count)
2301 {
2302         struct lm93_data *data = dev_get_drvdata(dev);
2303         struct i2c_client *client = data->client;
2304         unsigned long val;
2305         int err;
2306
2307         err = kstrtoul(buf, 10, &val);
2308         if (err)
2309                 return err;
2310
2311         mutex_lock(&data->update_lock);
2312         if (val)
2313                 data->config |= 0x10;
2314         else
2315                 data->config &= ~0x10;
2316         lm93_write_byte(client, LM93_REG_CONFIG, data->config);
2317         mutex_unlock(&data->update_lock);
2318         return count;
2319 }
2320
2321 static DEVICE_ATTR_RW(prochot_short);
2322
2323 static ssize_t vrdhot_show(struct device *dev, struct device_attribute *attr,
2324                            char *buf)
2325 {
2326         int nr = (to_sensor_dev_attr(attr))->index;
2327         struct lm93_data *data = lm93_update_device(dev);
2328         return sprintf(buf, "%d\n",
2329                        data->block1.host_status_1 & (1 << (nr + 4)) ? 1 : 0);
2330 }
2331
2332 static SENSOR_DEVICE_ATTR_RO(vrdhot1, vrdhot, 0);
2333 static SENSOR_DEVICE_ATTR_RO(vrdhot2, vrdhot, 1);
2334
2335 static ssize_t gpio_show(struct device *dev, struct device_attribute *attr,
2336                                 char *buf)
2337 {
2338         struct lm93_data *data = lm93_update_device(dev);
2339         return sprintf(buf, "%d\n", LM93_GPI_FROM_REG(data->gpi));
2340 }
2341
2342 static DEVICE_ATTR_RO(gpio);
2343
2344 static ssize_t alarms_show(struct device *dev, struct device_attribute *attr,
2345                                 char *buf)
2346 {
2347         struct lm93_data *data = lm93_update_device(dev);
2348         return sprintf(buf, "%d\n", LM93_ALARMS_FROM_REG(data->block1));
2349 }
2350
2351 static DEVICE_ATTR_RO(alarms);
2352
2353 static struct attribute *lm93_attrs[] = {
2354         &sensor_dev_attr_in1_input.dev_attr.attr,
2355         &sensor_dev_attr_in2_input.dev_attr.attr,
2356         &sensor_dev_attr_in3_input.dev_attr.attr,
2357         &sensor_dev_attr_in4_input.dev_attr.attr,
2358         &sensor_dev_attr_in5_input.dev_attr.attr,
2359         &sensor_dev_attr_in6_input.dev_attr.attr,
2360         &sensor_dev_attr_in7_input.dev_attr.attr,
2361         &sensor_dev_attr_in8_input.dev_attr.attr,
2362         &sensor_dev_attr_in9_input.dev_attr.attr,
2363         &sensor_dev_attr_in10_input.dev_attr.attr,
2364         &sensor_dev_attr_in11_input.dev_attr.attr,
2365         &sensor_dev_attr_in12_input.dev_attr.attr,
2366         &sensor_dev_attr_in13_input.dev_attr.attr,
2367         &sensor_dev_attr_in14_input.dev_attr.attr,
2368         &sensor_dev_attr_in15_input.dev_attr.attr,
2369         &sensor_dev_attr_in16_input.dev_attr.attr,
2370         &sensor_dev_attr_in1_min.dev_attr.attr,
2371         &sensor_dev_attr_in2_min.dev_attr.attr,
2372         &sensor_dev_attr_in3_min.dev_attr.attr,
2373         &sensor_dev_attr_in4_min.dev_attr.attr,
2374         &sensor_dev_attr_in5_min.dev_attr.attr,
2375         &sensor_dev_attr_in6_min.dev_attr.attr,
2376         &sensor_dev_attr_in7_min.dev_attr.attr,
2377         &sensor_dev_attr_in8_min.dev_attr.attr,
2378         &sensor_dev_attr_in9_min.dev_attr.attr,
2379         &sensor_dev_attr_in10_min.dev_attr.attr,
2380         &sensor_dev_attr_in11_min.dev_attr.attr,
2381         &sensor_dev_attr_in12_min.dev_attr.attr,
2382         &sensor_dev_attr_in13_min.dev_attr.attr,
2383         &sensor_dev_attr_in14_min.dev_attr.attr,
2384         &sensor_dev_attr_in15_min.dev_attr.attr,
2385         &sensor_dev_attr_in16_min.dev_attr.attr,
2386         &sensor_dev_attr_in1_max.dev_attr.attr,
2387         &sensor_dev_attr_in2_max.dev_attr.attr,
2388         &sensor_dev_attr_in3_max.dev_attr.attr,
2389         &sensor_dev_attr_in4_max.dev_attr.attr,
2390         &sensor_dev_attr_in5_max.dev_attr.attr,
2391         &sensor_dev_attr_in6_max.dev_attr.attr,
2392         &sensor_dev_attr_in7_max.dev_attr.attr,
2393         &sensor_dev_attr_in8_max.dev_attr.attr,
2394         &sensor_dev_attr_in9_max.dev_attr.attr,
2395         &sensor_dev_attr_in10_max.dev_attr.attr,
2396         &sensor_dev_attr_in11_max.dev_attr.attr,
2397         &sensor_dev_attr_in12_max.dev_attr.attr,
2398         &sensor_dev_attr_in13_max.dev_attr.attr,
2399         &sensor_dev_attr_in14_max.dev_attr.attr,
2400         &sensor_dev_attr_in15_max.dev_attr.attr,
2401         &sensor_dev_attr_in16_max.dev_attr.attr,
2402         &sensor_dev_attr_temp1_input.dev_attr.attr,
2403         &sensor_dev_attr_temp2_input.dev_attr.attr,
2404         &sensor_dev_attr_temp3_input.dev_attr.attr,
2405         &sensor_dev_attr_temp1_min.dev_attr.attr,
2406         &sensor_dev_attr_temp2_min.dev_attr.attr,
2407         &sensor_dev_attr_temp3_min.dev_attr.attr,
2408         &sensor_dev_attr_temp1_max.dev_attr.attr,
2409         &sensor_dev_attr_temp2_max.dev_attr.attr,
2410         &sensor_dev_attr_temp3_max.dev_attr.attr,
2411         &sensor_dev_attr_temp1_auto_base.dev_attr.attr,
2412         &sensor_dev_attr_temp2_auto_base.dev_attr.attr,
2413         &sensor_dev_attr_temp3_auto_base.dev_attr.attr,
2414         &sensor_dev_attr_temp1_auto_boost.dev_attr.attr,
2415         &sensor_dev_attr_temp2_auto_boost.dev_attr.attr,
2416         &sensor_dev_attr_temp3_auto_boost.dev_attr.attr,
2417         &sensor_dev_attr_temp1_auto_boost_hyst.dev_attr.attr,
2418         &sensor_dev_attr_temp2_auto_boost_hyst.dev_attr.attr,
2419         &sensor_dev_attr_temp3_auto_boost_hyst.dev_attr.attr,
2420         &sensor_dev_attr_temp1_auto_offset1.dev_attr.attr,
2421         &sensor_dev_attr_temp1_auto_offset2.dev_attr.attr,
2422         &sensor_dev_attr_temp1_auto_offset3.dev_attr.attr,
2423         &sensor_dev_attr_temp1_auto_offset4.dev_attr.attr,
2424         &sensor_dev_attr_temp1_auto_offset5.dev_attr.attr,
2425         &sensor_dev_attr_temp1_auto_offset6.dev_attr.attr,
2426         &sensor_dev_attr_temp1_auto_offset7.dev_attr.attr,
2427         &sensor_dev_attr_temp1_auto_offset8.dev_attr.attr,
2428         &sensor_dev_attr_temp1_auto_offset9.dev_attr.attr,
2429         &sensor_dev_attr_temp1_auto_offset10.dev_attr.attr,
2430         &sensor_dev_attr_temp1_auto_offset11.dev_attr.attr,
2431         &sensor_dev_attr_temp1_auto_offset12.dev_attr.attr,
2432         &sensor_dev_attr_temp2_auto_offset1.dev_attr.attr,
2433         &sensor_dev_attr_temp2_auto_offset2.dev_attr.attr,
2434         &sensor_dev_attr_temp2_auto_offset3.dev_attr.attr,
2435         &sensor_dev_attr_temp2_auto_offset4.dev_attr.attr,
2436         &sensor_dev_attr_temp2_auto_offset5.dev_attr.attr,
2437         &sensor_dev_attr_temp2_auto_offset6.dev_attr.attr,
2438         &sensor_dev_attr_temp2_auto_offset7.dev_attr.attr,
2439         &sensor_dev_attr_temp2_auto_offset8.dev_attr.attr,
2440         &sensor_dev_attr_temp2_auto_offset9.dev_attr.attr,
2441         &sensor_dev_attr_temp2_auto_offset10.dev_attr.attr,
2442         &sensor_dev_attr_temp2_auto_offset11.dev_attr.attr,
2443         &sensor_dev_attr_temp2_auto_offset12.dev_attr.attr,
2444         &sensor_dev_attr_temp3_auto_offset1.dev_attr.attr,
2445         &sensor_dev_attr_temp3_auto_offset2.dev_attr.attr,
2446         &sensor_dev_attr_temp3_auto_offset3.dev_attr.attr,
2447         &sensor_dev_attr_temp3_auto_offset4.dev_attr.attr,
2448         &sensor_dev_attr_temp3_auto_offset5.dev_attr.attr,
2449         &sensor_dev_attr_temp3_auto_offset6.dev_attr.attr,
2450         &sensor_dev_attr_temp3_auto_offset7.dev_attr.attr,
2451         &sensor_dev_attr_temp3_auto_offset8.dev_attr.attr,
2452         &sensor_dev_attr_temp3_auto_offset9.dev_attr.attr,
2453         &sensor_dev_attr_temp3_auto_offset10.dev_attr.attr,
2454         &sensor_dev_attr_temp3_auto_offset11.dev_attr.attr,
2455         &sensor_dev_attr_temp3_auto_offset12.dev_attr.attr,
2456         &sensor_dev_attr_temp1_auto_pwm_min.dev_attr.attr,
2457         &sensor_dev_attr_temp2_auto_pwm_min.dev_attr.attr,
2458         &sensor_dev_attr_temp3_auto_pwm_min.dev_attr.attr,
2459         &sensor_dev_attr_temp1_auto_offset_hyst.dev_attr.attr,
2460         &sensor_dev_attr_temp2_auto_offset_hyst.dev_attr.attr,
2461         &sensor_dev_attr_temp3_auto_offset_hyst.dev_attr.attr,
2462         &sensor_dev_attr_fan1_input.dev_attr.attr,
2463         &sensor_dev_attr_fan2_input.dev_attr.attr,
2464         &sensor_dev_attr_fan3_input.dev_attr.attr,
2465         &sensor_dev_attr_fan4_input.dev_attr.attr,
2466         &sensor_dev_attr_fan1_min.dev_attr.attr,
2467         &sensor_dev_attr_fan2_min.dev_attr.attr,
2468         &sensor_dev_attr_fan3_min.dev_attr.attr,
2469         &sensor_dev_attr_fan4_min.dev_attr.attr,
2470         &sensor_dev_attr_fan1_smart_tach.dev_attr.attr,
2471         &sensor_dev_attr_fan2_smart_tach.dev_attr.attr,
2472         &sensor_dev_attr_fan3_smart_tach.dev_attr.attr,
2473         &sensor_dev_attr_fan4_smart_tach.dev_attr.attr,
2474         &sensor_dev_attr_pwm1.dev_attr.attr,
2475         &sensor_dev_attr_pwm2.dev_attr.attr,
2476         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2477         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2478         &sensor_dev_attr_pwm1_freq.dev_attr.attr,
2479         &sensor_dev_attr_pwm2_freq.dev_attr.attr,
2480         &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
2481         &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
2482         &sensor_dev_attr_pwm1_auto_spinup_min.dev_attr.attr,
2483         &sensor_dev_attr_pwm2_auto_spinup_min.dev_attr.attr,
2484         &sensor_dev_attr_pwm1_auto_spinup_time.dev_attr.attr,
2485         &sensor_dev_attr_pwm2_auto_spinup_time.dev_attr.attr,
2486         &dev_attr_pwm_auto_prochot_ramp.attr,
2487         &dev_attr_pwm_auto_vrdhot_ramp.attr,
2488         &sensor_dev_attr_cpu0_vid.dev_attr.attr,
2489         &sensor_dev_attr_cpu1_vid.dev_attr.attr,
2490         &sensor_dev_attr_prochot1.dev_attr.attr,
2491         &sensor_dev_attr_prochot2.dev_attr.attr,
2492         &sensor_dev_attr_prochot1_avg.dev_attr.attr,
2493         &sensor_dev_attr_prochot2_avg.dev_attr.attr,
2494         &sensor_dev_attr_prochot1_max.dev_attr.attr,
2495         &sensor_dev_attr_prochot2_max.dev_attr.attr,
2496         &sensor_dev_attr_prochot1_override.dev_attr.attr,
2497         &sensor_dev_attr_prochot2_override.dev_attr.attr,
2498         &sensor_dev_attr_prochot1_interval.dev_attr.attr,
2499         &sensor_dev_attr_prochot2_interval.dev_attr.attr,
2500         &dev_attr_prochot_override_duty_cycle.attr,
2501         &dev_attr_prochot_short.attr,
2502         &sensor_dev_attr_vrdhot1.dev_attr.attr,
2503         &sensor_dev_attr_vrdhot2.dev_attr.attr,
2504         &dev_attr_gpio.attr,
2505         &dev_attr_alarms.attr,
2506         NULL
2507 };
2508
2509 ATTRIBUTE_GROUPS(lm93);
2510
2511 static void lm93_init_client(struct i2c_client *client)
2512 {
2513         int i;
2514         u8 reg;
2515
2516         /* configure VID pin input thresholds */
2517         reg = lm93_read_byte(client, LM93_REG_GPI_VID_CTL);
2518         lm93_write_byte(client, LM93_REG_GPI_VID_CTL,
2519                         reg | (vid_agtl ? 0x03 : 0x00));
2520
2521         if (init) {
2522                 /* enable #ALERT pin */
2523                 reg = lm93_read_byte(client, LM93_REG_CONFIG);
2524                 lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x08);
2525
2526                 /* enable ASF mode for BMC status registers */
2527                 reg = lm93_read_byte(client, LM93_REG_STATUS_CONTROL);
2528                 lm93_write_byte(client, LM93_REG_STATUS_CONTROL, reg | 0x02);
2529
2530                 /* set sleep state to S0 */
2531                 lm93_write_byte(client, LM93_REG_SLEEP_CONTROL, 0);
2532
2533                 /* unmask #VRDHOT and dynamic VCCP (if nec) error events */
2534                 reg = lm93_read_byte(client, LM93_REG_MISC_ERR_MASK);
2535                 reg &= ~0x03;
2536                 reg &= ~(vccp_limit_type[0] ? 0x10 : 0);
2537                 reg &= ~(vccp_limit_type[1] ? 0x20 : 0);
2538                 lm93_write_byte(client, LM93_REG_MISC_ERR_MASK, reg);
2539         }
2540
2541         /* start monitoring */
2542         reg = lm93_read_byte(client, LM93_REG_CONFIG);
2543         lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x01);
2544
2545         /* spin until ready */
2546         for (i = 0; i < 20; i++) {
2547                 msleep(10);
2548                 if ((lm93_read_byte(client, LM93_REG_CONFIG) & 0x80) == 0x80)
2549                         return;
2550         }
2551
2552         dev_warn(&client->dev,
2553                  "timed out waiting for sensor chip to signal ready!\n");
2554 }
2555
2556 /* Return 0 if detection is successful, -ENODEV otherwise */
2557 static int lm93_detect(struct i2c_client *client, struct i2c_board_info *info)
2558 {
2559         struct i2c_adapter *adapter = client->adapter;
2560         int mfr, ver;
2561         const char *name;
2562
2563         if (!i2c_check_functionality(adapter, LM93_SMBUS_FUNC_MIN))
2564                 return -ENODEV;
2565
2566         /* detection */
2567         mfr = lm93_read_byte(client, LM93_REG_MFR_ID);
2568         if (mfr != 0x01) {
2569                 dev_dbg(&adapter->dev,
2570                         "detect failed, bad manufacturer id 0x%02x!\n", mfr);
2571                 return -ENODEV;
2572         }
2573
2574         ver = lm93_read_byte(client, LM93_REG_VER);
2575         switch (ver) {
2576         case LM93_MFR_ID:
2577         case LM93_MFR_ID_PROTOTYPE:
2578                 name = "lm93";
2579                 break;
2580         case LM94_MFR_ID_2:
2581         case LM94_MFR_ID:
2582         case LM94_MFR_ID_PROTOTYPE:
2583                 name = "lm94";
2584                 break;
2585         default:
2586                 dev_dbg(&adapter->dev,
2587                         "detect failed, bad version id 0x%02x!\n", ver);
2588                 return -ENODEV;
2589         }
2590
2591         strlcpy(info->type, name, I2C_NAME_SIZE);
2592         dev_dbg(&adapter->dev, "loading %s at %d, 0x%02x\n",
2593                 client->name, i2c_adapter_id(client->adapter),
2594                 client->addr);
2595
2596         return 0;
2597 }
2598
2599 static int lm93_probe(struct i2c_client *client,
2600                       const struct i2c_device_id *id)
2601 {
2602         struct device *dev = &client->dev;
2603         struct lm93_data *data;
2604         struct device *hwmon_dev;
2605         int func;
2606         void (*update)(struct lm93_data *, struct i2c_client *);
2607
2608         /* choose update routine based on bus capabilities */
2609         func = i2c_get_functionality(client->adapter);
2610         if (((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) &&
2611                         (!disable_block)) {
2612                 dev_dbg(dev, "using SMBus block data transactions\n");
2613                 update = lm93_update_client_full;
2614         } else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) {
2615                 dev_dbg(dev, "disabled SMBus block data transactions\n");
2616                 update = lm93_update_client_min;
2617         } else {
2618                 dev_dbg(dev, "detect failed, smbus byte and/or word data not supported!\n");
2619                 return -ENODEV;
2620         }
2621
2622         data = devm_kzalloc(dev, sizeof(struct lm93_data), GFP_KERNEL);
2623         if (!data)
2624                 return -ENOMEM;
2625
2626         /* housekeeping */
2627         data->client = client;
2628         data->update = update;
2629         mutex_init(&data->update_lock);
2630
2631         /* initialize the chip */
2632         lm93_init_client(client);
2633
2634         hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
2635                                                            data,
2636                                                            lm93_groups);
2637         return PTR_ERR_OR_ZERO(hwmon_dev);
2638 }
2639
2640 static const struct i2c_device_id lm93_id[] = {
2641         { "lm93", 0 },
2642         { "lm94", 0 },
2643         { }
2644 };
2645 MODULE_DEVICE_TABLE(i2c, lm93_id);
2646
2647 static struct i2c_driver lm93_driver = {
2648         .class          = I2C_CLASS_HWMON,
2649         .driver = {
2650                 .name   = "lm93",
2651         },
2652         .probe          = lm93_probe,
2653         .id_table       = lm93_id,
2654         .detect         = lm93_detect,
2655         .address_list   = normal_i2c,
2656 };
2657
2658 module_i2c_driver(lm93_driver);
2659
2660 MODULE_AUTHOR("Mark M. Hoffman <[email protected]>, "
2661                 "Hans J. Koch <[email protected]>");
2662 MODULE_DESCRIPTION("LM93 driver");
2663 MODULE_LICENSE("GPL");