linux/drivers/hwmon/lm93.c
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   1/*
   2 * lm93.c - Part of lm_sensors, Linux kernel modules for hardware monitoring
   3 *
   4 * Author/Maintainer: Mark M. Hoffman <mhoffman@lightlink.com>
   5 *      Copyright (c) 2004 Utilitek Systems, Inc.
   6 *
   7 * derived in part from lm78.c:
   8 *      Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
   9 *
  10 * derived in part from lm85.c:
  11 *      Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
  12 *      Copyright (c) 2003       Margit Schubert-While <margitsw@t-online.de>
  13 *
  14 * derived in part from w83l785ts.c:
  15 *      Copyright (c) 2003-2004 Jean Delvare <khali@linux-fr.org>
  16 *
  17 * Ported to Linux 2.6 by Eric J. Bowersox <ericb@aspsys.com>
  18 *      Copyright (c) 2005 Aspen Systems, Inc.
  19 *
  20 * Adapted to 2.6.20 by Carsten Emde <cbe@osadl.org>
  21 *      Copyright (c) 2006 Carsten Emde, Open Source Automation Development Lab
  22 *
  23 * Modified for mainline integration by Hans J. Koch <hjk@hansjkoch.de>
  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 */
 151static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
 152
 153/* Insmod parameters */
 154
 155static bool disable_block;
 156module_param(disable_block, bool, 0);
 157MODULE_PARM_DESC(disable_block,
 158        "Set to non-zero to disable SMBus block data transactions.");
 159
 160static bool init;
 161module_param(init, bool, 0);
 162MODULE_PARM_DESC(init, "Set to non-zero to force chip initialization.");
 163
 164static int vccp_limit_type[2] = {0, 0};
 165module_param_array(vccp_limit_type, int, NULL, 0);
 166MODULE_PARM_DESC(vccp_limit_type, "Configures in7 and in8 limit modes.");
 167
 168static int vid_agtl;
 169module_param(vid_agtl, int, 0);
 170MODULE_PARM_DESC(vid_agtl, "Configures VID pin input thresholds.");
 171
 172/* Driver data */
 173static struct i2c_driver lm93_driver;
 174
 175/* LM93 BLOCK READ COMMANDS */
 176static 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 */
 195struct 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 */
 209struct lm93_data {
 210        struct device *hwmon_dev;
 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 */
 315static 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) */
 321static 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};
 325static 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)*/
 338static 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
 343static 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
 355static 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 */
 371static u8 LM93_IN_TO_REG(int nr, unsigned val)
 372{
 373        /* range limit */
 374        const long mV = SENSORS_LIMIT(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 = SENSORS_LIMIT(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 */
 394static 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 */
 410static 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 = SENSORS_LIMIT(uV_offset, 12500, 200000);
 415                return (u8)((uV_offset /  12500 - 1) << 4);
 416        } else {
 417                uV_offset = SENSORS_LIMIT(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 */
 426static 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 */
 438static u8 LM93_TEMP_TO_REG(long temp)
 439{
 440        int ntemp = SENSORS_LIMIT(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 */
 446static 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 */
 457static 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 */
 471static u8 LM93_TEMP_OFFSET_TO_REG(int off, int mode)
 472{
 473        int factor = mode ? 5 : 10;
 474
 475        off = SENSORS_LIMIT(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 */
 481static 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 */
 497static 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
 510static 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
 535static 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 */
 564enum pwm_freq { LM93_PWM_MAP_HI_FREQ, LM93_PWM_MAP_LO_FREQ };
 565
 566static 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
 589static 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 */
 595static 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
 606static 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 */
 616static u16 LM93_FAN_TO_REG(long rpm)
 617{
 618        u16 count, regs;
 619
 620        if (rpm == 0) {
 621                count = 0x3fff;
 622        } else {
 623                rpm = SENSORS_LIMIT(rpm, 1, 1000000);
 624                count = SENSORS_LIMIT((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 */
 635static int lm93_pwm_freq_map[8] = {
 636        22500, 96, 84, 72, 60, 48, 36, 12
 637};
 638
 639static 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 */
 645static 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 */
 660static int lm93_spinup_time_map[8] = {
 661        0, 10, 25, 40, 70, 100, 200, 400,
 662};
 663
 664static 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 */
 670static 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
 684static 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 */
 693static u8 LM93_RAMP_TO_REG(int ramp)
 694{
 695        ramp = SENSORS_LIMIT(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 */
 703static u8 LM93_PROCHOT_TO_REG(long prochot)
 704{
 705        prochot = SENSORS_LIMIT(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 */
 713static int lm93_interval_map[10] = {
 714        73, 146, 290, 580, 1170, 2330, 4660, 9320, 18600, 37200,
 715};
 716
 717static int LM93_INTERVAL_FROM_REG(u8 reg)
 718{
 719        return lm93_interval_map[reg & 0x0f];
 720}
 721
 722/* round up to nearest match */
 723static 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 */
 738static 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
 785static 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
 811static 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, "lm93: read byte data failed, "
 822                                "address 0x%02x.\n", reg);
 823                        mdelay(i + 3);
 824                }
 825
 826        }
 827
 828        /* <TODO> what to return in case of error? */
 829        dev_err(&client->dev, "lm93: All read byte retries failed!!\n");
 830        return 0;
 831}
 832
 833static int lm93_write_byte(struct i2c_client *client, u8 reg, u8 value)
 834{
 835        int result;
 836
 837        /* <TODO> how to handle write errors? */
 838        result = i2c_smbus_write_byte_data(client, reg, value);
 839
 840        if (result < 0)
 841                dev_warn(&client->dev, "lm93: write byte data failed, "
 842                         "0x%02x at address 0x%02x.\n", value, reg);
 843
 844        return result;
 845}
 846
 847static u16 lm93_read_word(struct i2c_client *client, u8 reg)
 848{
 849        int value, i;
 850
 851        /* retry in case of read errors */
 852        for (i = 1; i <= MAX_RETRIES; i++) {
 853                value = i2c_smbus_read_word_data(client, reg);
 854                if (value >= 0) {
 855                        return value;
 856                } else {
 857                        dev_warn(&client->dev, "lm93: read word data failed, "
 858                                 "address 0x%02x.\n", reg);
 859                        mdelay(i + 3);
 860                }
 861
 862        }
 863
 864        /* <TODO> what to return in case of error? */
 865        dev_err(&client->dev, "lm93: All read word retries failed!!\n");
 866        return 0;
 867}
 868
 869static int lm93_write_word(struct i2c_client *client, u8 reg, u16 value)
 870{
 871        int result;
 872
 873        /* <TODO> how to handle write errors? */
 874        result = i2c_smbus_write_word_data(client, reg, value);
 875
 876        if (result < 0)
 877                dev_warn(&client->dev, "lm93: write word data failed, "
 878                         "0x%04x at address 0x%02x.\n", value, reg);
 879
 880        return result;
 881}
 882
 883static u8 lm93_block_buffer[I2C_SMBUS_BLOCK_MAX];
 884
 885/*
 886 * read block data into values, retry if not expected length
 887 * fbn => index to lm93_block_read_cmds table
 888 * (Fixed Block Number - section 14.5.2 of LM93 datasheet)
 889 */
 890static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values)
 891{
 892        int i, result = 0;
 893
 894        for (i = 1; i <= MAX_RETRIES; i++) {
 895                result = i2c_smbus_read_block_data(client,
 896                        lm93_block_read_cmds[fbn].cmd, lm93_block_buffer);
 897
 898                if (result == lm93_block_read_cmds[fbn].len) {
 899                        break;
 900                } else {
 901                        dev_warn(&client->dev, "lm93: block read data failed, "
 902                                 "command 0x%02x.\n",
 903                                 lm93_block_read_cmds[fbn].cmd);
 904                        mdelay(i + 3);
 905                }
 906        }
 907
 908        if (result == lm93_block_read_cmds[fbn].len) {
 909                memcpy(values, lm93_block_buffer,
 910                       lm93_block_read_cmds[fbn].len);
 911        } else {
 912                /* <TODO> what to do in case of error? */
 913        }
 914}
 915
 916static struct lm93_data *lm93_update_device(struct device *dev)
 917{
 918        struct i2c_client *client = to_i2c_client(dev);
 919        struct lm93_data *data = i2c_get_clientdata(client);
 920        const unsigned long interval = HZ + (HZ / 2);
 921
 922        mutex_lock(&data->update_lock);
 923
 924        if (time_after(jiffies, data->last_updated + interval) ||
 925                !data->valid) {
 926
 927                data->update(data, client);
 928                data->last_updated = jiffies;
 929                data->valid = 1;
 930        }
 931
 932        mutex_unlock(&data->update_lock);
 933        return data;
 934}
 935
 936/* update routine for data that has no corresponding SMBus block command */
 937static void lm93_update_client_common(struct lm93_data *data,
 938                                      struct i2c_client *client)
 939{
 940        int i;
 941        u8 *ptr;
 942
 943        /* temp1 - temp4: limits */
 944        for (i = 0; i < 4; i++) {
 945                data->temp_lim[i].min =
 946                        lm93_read_byte(client, LM93_REG_TEMP_MIN(i));
 947                data->temp_lim[i].max =
 948                        lm93_read_byte(client, LM93_REG_TEMP_MAX(i));
 949        }
 950
 951        /* config register */
 952        data->config = lm93_read_byte(client, LM93_REG_CONFIG);
 953
 954        /* vid1 - vid2: values */
 955        for (i = 0; i < 2; i++)
 956                data->vid[i] = lm93_read_byte(client, LM93_REG_VID(i));
 957
 958        /* prochot1 - prochot2: limits */
 959        for (i = 0; i < 2; i++)
 960                data->prochot_max[i] = lm93_read_byte(client,
 961                                LM93_REG_PROCHOT_MAX(i));
 962
 963        /* vccp1 - vccp2: VID relative limits */
 964        for (i = 0; i < 2; i++)
 965                data->vccp_limits[i] = lm93_read_byte(client,
 966                                LM93_REG_VCCP_LIMIT_OFF(i));
 967
 968        /* GPIO input state */
 969        data->gpi = lm93_read_byte(client, LM93_REG_GPI);
 970
 971        /* #PROCHOT override state */
 972        data->prochot_override = lm93_read_byte(client,
 973                        LM93_REG_PROCHOT_OVERRIDE);
 974
 975        /* #PROCHOT intervals */
 976        data->prochot_interval = lm93_read_byte(client,
 977                        LM93_REG_PROCHOT_INTERVAL);
 978
 979        /* Fan Boost Temperature registers */
 980        for (i = 0; i < 4; i++)
 981                data->boost[i] = lm93_read_byte(client, LM93_REG_BOOST(i));
 982
 983        /* Fan Boost Temperature Hyst. registers */
 984        data->boost_hyst[0] = lm93_read_byte(client, LM93_REG_BOOST_HYST_12);
 985        data->boost_hyst[1] = lm93_read_byte(client, LM93_REG_BOOST_HYST_34);
 986
 987        /* Temperature Zone Min. PWM & Hysteresis registers */
 988        data->auto_pwm_min_hyst[0] =
 989                        lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_12);
 990        data->auto_pwm_min_hyst[1] =
 991                        lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_34);
 992
 993        /* #PROCHOT & #VRDHOT PWM Ramp Control register */
 994        data->pwm_ramp_ctl = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
 995
 996        /* misc setup registers */
 997        data->sfc1 = lm93_read_byte(client, LM93_REG_SFC1);
 998        data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
 999        data->sf_tach_to_pwm = lm93_read_byte(client,
1000                        LM93_REG_SF_TACH_TO_PWM);
1001
1002        /* write back alarm values to clear */
1003        for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++)
1004                lm93_write_byte(client, LM93_REG_HOST_ERROR_1 + i, *(ptr + i));
1005}
1006
1007/* update routine which uses SMBus block data commands */
1008static void lm93_update_client_full(struct lm93_data *data,
1009                                    struct i2c_client *client)
1010{
1011        dev_dbg(&client->dev, "starting device update (block data enabled)\n");
1012
1013        /* in1 - in16: values & limits */
1014        lm93_read_block(client, 3, (u8 *)(data->block3));
1015        lm93_read_block(client, 7, (u8 *)(data->block7));
1016
1017        /* temp1 - temp4: values */
1018        lm93_read_block(client, 2, (u8 *)(data->block2));
1019
1020        /* prochot1 - prochot2: values */
1021        lm93_read_block(client, 4, (u8 *)(data->block4));
1022
1023        /* fan1 - fan4: values & limits */
1024        lm93_read_block(client, 5, (u8 *)(data->block5));
1025        lm93_read_block(client, 8, (u8 *)(data->block8));
1026
1027        /* pmw control registers */
1028        lm93_read_block(client, 9, (u8 *)(data->block9));
1029
1030        /* alarm values */
1031        lm93_read_block(client, 1, (u8 *)(&data->block1));
1032
1033        /* auto/pwm registers */
1034        lm93_read_block(client, 10, (u8 *)(&data->block10));
1035
1036        lm93_update_client_common(data, client);
1037}
1038
1039/* update routine which uses SMBus byte/word data commands only */
1040static void lm93_update_client_min(struct lm93_data *data,
1041                                   struct i2c_client *client)
1042{
1043        int i, j;
1044        u8 *ptr;
1045
1046        dev_dbg(&client->dev, "starting device update (block data disabled)\n");
1047
1048        /* in1 - in16: values & limits */
1049        for (i = 0; i < 16; i++) {
1050                data->block3[i] =
1051                        lm93_read_byte(client, LM93_REG_IN(i));
1052                data->block7[i].min =
1053                        lm93_read_byte(client, LM93_REG_IN_MIN(i));
1054                data->block7[i].max =
1055                        lm93_read_byte(client, LM93_REG_IN_MAX(i));
1056        }
1057
1058        /* temp1 - temp4: values */
1059        for (i = 0; i < 4; i++) {
1060                data->block2[i] =
1061                        lm93_read_byte(client, LM93_REG_TEMP(i));
1062        }
1063
1064        /* prochot1 - prochot2: values */
1065        for (i = 0; i < 2; i++) {
1066                data->block4[i].cur =
1067                        lm93_read_byte(client, LM93_REG_PROCHOT_CUR(i));
1068                data->block4[i].avg =
1069                        lm93_read_byte(client, LM93_REG_PROCHOT_AVG(i));
1070        }
1071
1072        /* fan1 - fan4: values & limits */
1073        for (i = 0; i < 4; i++) {
1074                data->block5[i] =
1075                        lm93_read_word(client, LM93_REG_FAN(i));
1076                data->block8[i] =
1077                        lm93_read_word(client, LM93_REG_FAN_MIN(i));
1078        }
1079
1080        /* pwm control registers */
1081        for (i = 0; i < 2; i++) {
1082                for (j = 0; j < 4; j++) {
1083                        data->block9[i][j] =
1084                                lm93_read_byte(client, LM93_REG_PWM_CTL(i, j));
1085                }
1086        }
1087
1088        /* alarm values */
1089        for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++) {
1090                *(ptr + i) =
1091                        lm93_read_byte(client, LM93_REG_HOST_ERROR_1 + i);
1092        }
1093
1094        /* auto/pwm (base temp) registers */
1095        for (i = 0; i < 4; i++) {
1096                data->block10.base[i] =
1097                        lm93_read_byte(client, LM93_REG_TEMP_BASE(i));
1098        }
1099
1100        /* auto/pwm (offset temp) registers */
1101        for (i = 0; i < 12; i++) {
1102                data->block10.offset[i] =
1103                        lm93_read_byte(client, LM93_REG_TEMP_OFFSET(i));
1104        }
1105
1106        lm93_update_client_common(data, client);
1107}
1108
1109/* following are the sysfs callback functions */
1110static ssize_t show_in(struct device *dev, struct device_attribute *attr,
1111                        char *buf)
1112{
1113        int nr = (to_sensor_dev_attr(attr))->index;
1114
1115        struct lm93_data *data = lm93_update_device(dev);
1116        return sprintf(buf, "%d\n", LM93_IN_FROM_REG(nr, data->block3[nr]));
1117}
1118
1119static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 0);
1120static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 1);
1121static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 2);
1122static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 3);
1123static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 4);
1124static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 5);
1125static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 6);
1126static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 7);
1127static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_in, NULL, 8);
1128static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_in, NULL, 9);
1129static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, show_in, NULL, 10);
1130static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, show_in, NULL, 11);
1131static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, show_in, NULL, 12);
1132static SENSOR_DEVICE_ATTR(in14_input, S_IRUGO, show_in, NULL, 13);
1133static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, show_in, NULL, 14);
1134static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in, NULL, 15);
1135
1136static ssize_t show_in_min(struct device *dev,
1137                        struct device_attribute *attr, char *buf)
1138{
1139        int nr = (to_sensor_dev_attr(attr))->index;
1140        struct lm93_data *data = lm93_update_device(dev);
1141        int vccp = nr - 6;
1142        long rc, vid;
1143
1144        if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1145                vid = LM93_VID_FROM_REG(data->vid[vccp]);
1146                rc = LM93_IN_MIN_FROM_REG(data->vccp_limits[vccp], vid);
1147        } else {
1148                rc = LM93_IN_FROM_REG(nr, data->block7[nr].min);
1149        }
1150        return sprintf(buf, "%ld\n", rc);
1151}
1152
1153static ssize_t store_in_min(struct device *dev, struct device_attribute *attr,
1154                            const char *buf, size_t count)
1155{
1156        int nr = (to_sensor_dev_attr(attr))->index;
1157        struct i2c_client *client = to_i2c_client(dev);
1158        struct lm93_data *data = i2c_get_clientdata(client);
1159        int vccp = nr - 6;
1160        long vid;
1161        unsigned long val;
1162        int err;
1163
1164        err = kstrtoul(buf, 10, &val);
1165        if (err)
1166                return err;
1167
1168        mutex_lock(&data->update_lock);
1169        if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1170                vid = LM93_VID_FROM_REG(data->vid[vccp]);
1171                data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0xf0) |
1172                                LM93_IN_REL_TO_REG(val, 0, vid);
1173                lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
1174                                data->vccp_limits[vccp]);
1175        } else {
1176                data->block7[nr].min = LM93_IN_TO_REG(nr, val);
1177                lm93_write_byte(client, LM93_REG_IN_MIN(nr),
1178                                data->block7[nr].min);
1179        }
1180        mutex_unlock(&data->update_lock);
1181        return count;
1182}
1183
1184static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
1185                          show_in_min, store_in_min, 0);
1186static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
1187                          show_in_min, store_in_min, 1);
1188static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
1189                          show_in_min, store_in_min, 2);
1190static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
1191                          show_in_min, store_in_min, 3);
1192static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
1193                          show_in_min, store_in_min, 4);
1194static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
1195                          show_in_min, store_in_min, 5);
1196static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
1197                          show_in_min, store_in_min, 6);
1198static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
1199                          show_in_min, store_in_min, 7);
1200static SENSOR_DEVICE_ATTR(in9_min, S_IWUSR | S_IRUGO,
1201                          show_in_min, store_in_min, 8);
1202static SENSOR_DEVICE_ATTR(in10_min, S_IWUSR | S_IRUGO,
1203                          show_in_min, store_in_min, 9);
1204static SENSOR_DEVICE_ATTR(in11_min, S_IWUSR | S_IRUGO,
1205                          show_in_min, store_in_min, 10);
1206static SENSOR_DEVICE_ATTR(in12_min, S_IWUSR | S_IRUGO,
1207                          show_in_min, store_in_min, 11);
1208static SENSOR_DEVICE_ATTR(in13_min, S_IWUSR | S_IRUGO,
1209                          show_in_min, store_in_min, 12);
1210static SENSOR_DEVICE_ATTR(in14_min, S_IWUSR | S_IRUGO,
1211                          show_in_min, store_in_min, 13);
1212static SENSOR_DEVICE_ATTR(in15_min, S_IWUSR | S_IRUGO,
1213                          show_in_min, store_in_min, 14);
1214static SENSOR_DEVICE_ATTR(in16_min, S_IWUSR | S_IRUGO,
1215                          show_in_min, store_in_min, 15);
1216
1217static ssize_t show_in_max(struct device *dev,
1218                           struct device_attribute *attr, char *buf)
1219{
1220        int nr = (to_sensor_dev_attr(attr))->index;
1221        struct lm93_data *data = lm93_update_device(dev);
1222        int vccp = nr - 6;
1223        long rc, vid;
1224
1225        if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1226                vid = LM93_VID_FROM_REG(data->vid[vccp]);
1227                rc = LM93_IN_MAX_FROM_REG(data->vccp_limits[vccp], vid);
1228        } else {
1229                rc = LM93_IN_FROM_REG(nr, data->block7[nr].max);
1230        }
1231        return sprintf(buf, "%ld\n", rc);
1232}
1233
1234static ssize_t store_in_max(struct device *dev, struct device_attribute *attr,
1235                            const char *buf, size_t count)
1236{
1237        int nr = (to_sensor_dev_attr(attr))->index;
1238        struct i2c_client *client = to_i2c_client(dev);
1239        struct lm93_data *data = i2c_get_clientdata(client);
1240        int vccp = nr - 6;
1241        long vid;
1242        unsigned long val;
1243        int err;
1244
1245        err = kstrtoul(buf, 10, &val);
1246        if (err)
1247                return err;
1248
1249        mutex_lock(&data->update_lock);
1250        if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1251                vid = LM93_VID_FROM_REG(data->vid[vccp]);
1252                data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0x0f) |
1253                                LM93_IN_REL_TO_REG(val, 1, vid);
1254                lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
1255                                data->vccp_limits[vccp]);
1256        } else {
1257                data->block7[nr].max = LM93_IN_TO_REG(nr, val);
1258                lm93_write_byte(client, LM93_REG_IN_MAX(nr),
1259                                data->block7[nr].max);
1260        }
1261        mutex_unlock(&data->update_lock);
1262        return count;
1263}
1264
1265static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
1266                          show_in_max, store_in_max, 0);
1267static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
1268                          show_in_max, store_in_max, 1);
1269static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1270                          show_in_max, store_in_max, 2);
1271static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1272                          show_in_max, store_in_max, 3);
1273static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1274                          show_in_max, store_in_max, 4);
1275static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1276                          show_in_max, store_in_max, 5);
1277static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1278                          show_in_max, store_in_max, 6);
1279static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1280                          show_in_max, store_in_max, 7);
1281static SENSOR_DEVICE_ATTR(in9_max, S_IWUSR | S_IRUGO,
1282                          show_in_max, store_in_max, 8);
1283static SENSOR_DEVICE_ATTR(in10_max, S_IWUSR | S_IRUGO,
1284                          show_in_max, store_in_max, 9);
1285static SENSOR_DEVICE_ATTR(in11_max, S_IWUSR | S_IRUGO,
1286                          show_in_max, store_in_max, 10);
1287static SENSOR_DEVICE_ATTR(in12_max, S_IWUSR | S_IRUGO,
1288                          show_in_max, store_in_max, 11);
1289static SENSOR_DEVICE_ATTR(in13_max, S_IWUSR | S_IRUGO,
1290                          show_in_max, store_in_max, 12);
1291static SENSOR_DEVICE_ATTR(in14_max, S_IWUSR | S_IRUGO,
1292                          show_in_max, store_in_max, 13);
1293static SENSOR_DEVICE_ATTR(in15_max, S_IWUSR | S_IRUGO,
1294                          show_in_max, store_in_max, 14);
1295static SENSOR_DEVICE_ATTR(in16_max, S_IWUSR | S_IRUGO,
1296                          show_in_max, store_in_max, 15);
1297
1298static ssize_t show_temp(struct device *dev,
1299                         struct device_attribute *attr, char *buf)
1300{
1301        int nr = (to_sensor_dev_attr(attr))->index;
1302        struct lm93_data *data = lm93_update_device(dev);
1303        return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->block2[nr]));
1304}
1305
1306static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
1307static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
1308static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
1309
1310static ssize_t show_temp_min(struct device *dev,
1311                                struct device_attribute *attr, char *buf)
1312{
1313        int nr = (to_sensor_dev_attr(attr))->index;
1314        struct lm93_data *data = lm93_update_device(dev);
1315        return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->temp_lim[nr].min));
1316}
1317
1318static ssize_t store_temp_min(struct device *dev, struct device_attribute *attr,
1319                              const char *buf, size_t count)
1320{
1321        int nr = (to_sensor_dev_attr(attr))->index;
1322        struct i2c_client *client = to_i2c_client(dev);
1323        struct lm93_data *data = i2c_get_clientdata(client);
1324        long val;
1325        int err;
1326
1327        err = kstrtol(buf, 10, &val);
1328        if (err)
1329                return err;
1330
1331        mutex_lock(&data->update_lock);
1332        data->temp_lim[nr].min = LM93_TEMP_TO_REG(val);
1333        lm93_write_byte(client, LM93_REG_TEMP_MIN(nr), data->temp_lim[nr].min);
1334        mutex_unlock(&data->update_lock);
1335        return count;
1336}
1337
1338static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
1339                          show_temp_min, store_temp_min, 0);
1340static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO,
1341                          show_temp_min, store_temp_min, 1);
1342static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO,
1343                          show_temp_min, store_temp_min, 2);
1344
1345static ssize_t show_temp_max(struct device *dev,
1346                             struct device_attribute *attr, char *buf)
1347{
1348        int nr = (to_sensor_dev_attr(attr))->index;
1349        struct lm93_data *data = lm93_update_device(dev);
1350        return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->temp_lim[nr].max));
1351}
1352
1353static ssize_t store_temp_max(struct device *dev, struct device_attribute *attr,
1354                              const char *buf, size_t count)
1355{
1356        int nr = (to_sensor_dev_attr(attr))->index;
1357        struct i2c_client *client = to_i2c_client(dev);
1358        struct lm93_data *data = i2c_get_clientdata(client);
1359        long val;
1360        int err;
1361
1362        err = kstrtol(buf, 10, &val);
1363        if (err)
1364                return err;
1365
1366        mutex_lock(&data->update_lock);
1367        data->temp_lim[nr].max = LM93_TEMP_TO_REG(val);
1368        lm93_write_byte(client, LM93_REG_TEMP_MAX(nr), data->temp_lim[nr].max);
1369        mutex_unlock(&data->update_lock);
1370        return count;
1371}
1372
1373static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
1374                          show_temp_max, store_temp_max, 0);
1375static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO,
1376                          show_temp_max, store_temp_max, 1);
1377static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO,
1378                          show_temp_max, store_temp_max, 2);
1379
1380static ssize_t show_temp_auto_base(struct device *dev,
1381                                struct device_attribute *attr, char *buf)
1382{
1383        int nr = (to_sensor_dev_attr(attr))->index;
1384        struct lm93_data *data = lm93_update_device(dev);
1385        return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->block10.base[nr]));
1386}
1387
1388static ssize_t store_temp_auto_base(struct device *dev,
1389                                        struct device_attribute *attr,
1390                                        const char *buf, size_t count)
1391{
1392        int nr = (to_sensor_dev_attr(attr))->index;
1393        struct i2c_client *client = to_i2c_client(dev);
1394        struct lm93_data *data = i2c_get_clientdata(client);
1395        long val;
1396        int err;
1397
1398        err = kstrtol(buf, 10, &val);
1399        if (err)
1400                return err;
1401
1402        mutex_lock(&data->update_lock);
1403        data->block10.base[nr] = LM93_TEMP_TO_REG(val);
1404        lm93_write_byte(client, LM93_REG_TEMP_BASE(nr), data->block10.base[nr]);
1405        mutex_unlock(&data->update_lock);
1406        return count;
1407}
1408
1409static SENSOR_DEVICE_ATTR(temp1_auto_base, S_IWUSR | S_IRUGO,
1410                          show_temp_auto_base, store_temp_auto_base, 0);
1411static SENSOR_DEVICE_ATTR(temp2_auto_base, S_IWUSR | S_IRUGO,
1412                          show_temp_auto_base, store_temp_auto_base, 1);
1413static SENSOR_DEVICE_ATTR(temp3_auto_base, S_IWUSR | S_IRUGO,
1414                          show_temp_auto_base, store_temp_auto_base, 2);
1415
1416static ssize_t show_temp_auto_boost(struct device *dev,
1417                                    struct device_attribute *attr, char *buf)
1418{
1419        int nr = (to_sensor_dev_attr(attr))->index;
1420        struct lm93_data *data = lm93_update_device(dev);
1421        return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->boost[nr]));
1422}
1423
1424static ssize_t store_temp_auto_boost(struct device *dev,
1425                                     struct device_attribute *attr,
1426                                     const char *buf, size_t count)
1427{
1428        int nr = (to_sensor_dev_attr(attr))->index;
1429        struct i2c_client *client = to_i2c_client(dev);
1430        struct lm93_data *data = i2c_get_clientdata(client);
1431        long val;
1432        int err;
1433
1434        err = kstrtol(buf, 10, &val);
1435        if (err)
1436                return err;
1437
1438        mutex_lock(&data->update_lock);
1439        data->boost[nr] = LM93_TEMP_TO_REG(val);
1440        lm93_write_byte(client, LM93_REG_BOOST(nr), data->boost[nr]);
1441        mutex_unlock(&data->update_lock);
1442        return count;
1443}
1444
1445static SENSOR_DEVICE_ATTR(temp1_auto_boost, S_IWUSR | S_IRUGO,
1446                          show_temp_auto_boost, store_temp_auto_boost, 0);
1447static SENSOR_DEVICE_ATTR(temp2_auto_boost, S_IWUSR | S_IRUGO,
1448                          show_temp_auto_boost, store_temp_auto_boost, 1);
1449static SENSOR_DEVICE_ATTR(temp3_auto_boost, S_IWUSR | S_IRUGO,
1450                          show_temp_auto_boost, store_temp_auto_boost, 2);
1451
1452static ssize_t show_temp_auto_boost_hyst(struct device *dev,
1453                                         struct device_attribute *attr,
1454                                         char *buf)
1455{
1456        int nr = (to_sensor_dev_attr(attr))->index;
1457        struct lm93_data *data = lm93_update_device(dev);
1458        int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1459        return sprintf(buf, "%d\n",
1460                       LM93_AUTO_BOOST_HYST_FROM_REGS(data, nr, mode));
1461}
1462
1463static ssize_t store_temp_auto_boost_hyst(struct device *dev,
1464                                          struct device_attribute *attr,
1465                                          const char *buf, size_t count)
1466{
1467        int nr = (to_sensor_dev_attr(attr))->index;
1468        struct i2c_client *client = to_i2c_client(dev);
1469        struct lm93_data *data = i2c_get_clientdata(client);
1470        unsigned long val;
1471        int err;
1472
1473        err = kstrtoul(buf, 10, &val);
1474        if (err)
1475                return err;
1476
1477        mutex_lock(&data->update_lock);
1478        /* force 0.5C/bit mode */
1479        data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1480        data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1481        lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1482        data->boost_hyst[nr/2] = LM93_AUTO_BOOST_HYST_TO_REG(data, val, nr, 1);
1483        lm93_write_byte(client, LM93_REG_BOOST_HYST(nr),
1484                        data->boost_hyst[nr/2]);
1485        mutex_unlock(&data->update_lock);
1486        return count;
1487}
1488
1489static SENSOR_DEVICE_ATTR(temp1_auto_boost_hyst, S_IWUSR | S_IRUGO,
1490                          show_temp_auto_boost_hyst,
1491                          store_temp_auto_boost_hyst, 0);
1492static SENSOR_DEVICE_ATTR(temp2_auto_boost_hyst, S_IWUSR | S_IRUGO,
1493                          show_temp_auto_boost_hyst,
1494                          store_temp_auto_boost_hyst, 1);
1495static SENSOR_DEVICE_ATTR(temp3_auto_boost_hyst, S_IWUSR | S_IRUGO,
1496                          show_temp_auto_boost_hyst,
1497                          store_temp_auto_boost_hyst, 2);
1498
1499static ssize_t show_temp_auto_offset(struct device *dev,
1500                                struct device_attribute *attr, char *buf)
1501{
1502        struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
1503        int nr = s_attr->index;
1504        int ofs = s_attr->nr;
1505        struct lm93_data *data = lm93_update_device(dev);
1506        int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1507        return sprintf(buf, "%d\n",
1508               LM93_TEMP_AUTO_OFFSET_FROM_REG(data->block10.offset[ofs],
1509                                              nr, mode));
1510}
1511
1512static ssize_t store_temp_auto_offset(struct device *dev,
1513                                        struct device_attribute *attr,
1514                                        const char *buf, size_t count)
1515{
1516        struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
1517        int nr = s_attr->index;
1518        int ofs = s_attr->nr;
1519        struct i2c_client *client = to_i2c_client(dev);
1520        struct lm93_data *data = i2c_get_clientdata(client);
1521        unsigned long val;
1522        int err;
1523
1524        err = kstrtoul(buf, 10, &val);
1525        if (err)
1526                return err;
1527
1528        mutex_lock(&data->update_lock);
1529        /* force 0.5C/bit mode */
1530        data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1531        data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1532        lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1533        data->block10.offset[ofs] = LM93_TEMP_AUTO_OFFSET_TO_REG(
1534                        data->block10.offset[ofs], val, nr, 1);
1535        lm93_write_byte(client, LM93_REG_TEMP_OFFSET(ofs),
1536                        data->block10.offset[ofs]);
1537        mutex_unlock(&data->update_lock);
1538        return count;
1539}
1540
1541static SENSOR_DEVICE_ATTR_2(temp1_auto_offset1, S_IWUSR | S_IRUGO,
1542                          show_temp_auto_offset, store_temp_auto_offset, 0, 0);
1543static SENSOR_DEVICE_ATTR_2(temp1_auto_offset2, S_IWUSR | S_IRUGO,
1544                          show_temp_auto_offset, store_temp_auto_offset, 1, 0);
1545static SENSOR_DEVICE_ATTR_2(temp1_auto_offset3, S_IWUSR | S_IRUGO,
1546                          show_temp_auto_offset, store_temp_auto_offset, 2, 0);
1547static SENSOR_DEVICE_ATTR_2(temp1_auto_offset4, S_IWUSR | S_IRUGO,
1548                          show_temp_auto_offset, store_temp_auto_offset, 3, 0);
1549static SENSOR_DEVICE_ATTR_2(temp1_auto_offset5, S_IWUSR | S_IRUGO,
1550                          show_temp_auto_offset, store_temp_auto_offset, 4, 0);
1551static SENSOR_DEVICE_ATTR_2(temp1_auto_offset6, S_IWUSR | S_IRUGO,
1552                          show_temp_auto_offset, store_temp_auto_offset, 5, 0);
1553static SENSOR_DEVICE_ATTR_2(temp1_auto_offset7, S_IWUSR | S_IRUGO,
1554                          show_temp_auto_offset, store_temp_auto_offset, 6, 0);
1555static SENSOR_DEVICE_ATTR_2(temp1_auto_offset8, S_IWUSR | S_IRUGO,
1556                          show_temp_auto_offset, store_temp_auto_offset, 7, 0);
1557static SENSOR_DEVICE_ATTR_2(temp1_auto_offset9, S_IWUSR | S_IRUGO,
1558                          show_temp_auto_offset, store_temp_auto_offset, 8, 0);
1559static SENSOR_DEVICE_ATTR_2(temp1_auto_offset10, S_IWUSR | S_IRUGO,
1560                          show_temp_auto_offset, store_temp_auto_offset, 9, 0);
1561static SENSOR_DEVICE_ATTR_2(temp1_auto_offset11, S_IWUSR | S_IRUGO,
1562                          show_temp_auto_offset, store_temp_auto_offset, 10, 0);
1563static SENSOR_DEVICE_ATTR_2(temp1_auto_offset12, S_IWUSR | S_IRUGO,
1564                          show_temp_auto_offset, store_temp_auto_offset, 11, 0);
1565static SENSOR_DEVICE_ATTR_2(temp2_auto_offset1, S_IWUSR | S_IRUGO,
1566                          show_temp_auto_offset, store_temp_auto_offset, 0, 1);
1567static SENSOR_DEVICE_ATTR_2(temp2_auto_offset2, S_IWUSR | S_IRUGO,
1568                          show_temp_auto_offset, store_temp_auto_offset, 1, 1);
1569static SENSOR_DEVICE_ATTR_2(temp2_auto_offset3, S_IWUSR | S_IRUGO,
1570                          show_temp_auto_offset, store_temp_auto_offset, 2, 1);
1571static SENSOR_DEVICE_ATTR_2(temp2_auto_offset4, S_IWUSR | S_IRUGO,
1572                          show_temp_auto_offset, store_temp_auto_offset, 3, 1);
1573static SENSOR_DEVICE_ATTR_2(temp2_auto_offset5, S_IWUSR | S_IRUGO,
1574                          show_temp_auto_offset, store_temp_auto_offset, 4, 1);
1575static SENSOR_DEVICE_ATTR_2(temp2_auto_offset6, S_IWUSR | S_IRUGO,
1576                          show_temp_auto_offset, store_temp_auto_offset, 5, 1);
1577static SENSOR_DEVICE_ATTR_2(temp2_auto_offset7, S_IWUSR | S_IRUGO,
1578                          show_temp_auto_offset, store_temp_auto_offset, 6, 1);
1579static SENSOR_DEVICE_ATTR_2(temp2_auto_offset8, S_IWUSR | S_IRUGO,
1580                          show_temp_auto_offset, store_temp_auto_offset, 7, 1);
1581static SENSOR_DEVICE_ATTR_2(temp2_auto_offset9, S_IWUSR | S_IRUGO,
1582                          show_temp_auto_offset, store_temp_auto_offset, 8, 1);
1583static SENSOR_DEVICE_ATTR_2(temp2_auto_offset10, S_IWUSR | S_IRUGO,
1584                          show_temp_auto_offset, store_temp_auto_offset, 9, 1);
1585static SENSOR_DEVICE_ATTR_2(temp2_auto_offset11, S_IWUSR | S_IRUGO,
1586                          show_temp_auto_offset, store_temp_auto_offset, 10, 1);
1587static SENSOR_DEVICE_ATTR_2(temp2_auto_offset12, S_IWUSR | S_IRUGO,
1588                          show_temp_auto_offset, store_temp_auto_offset, 11, 1);
1589static SENSOR_DEVICE_ATTR_2(temp3_auto_offset1, S_IWUSR | S_IRUGO,
1590                          show_temp_auto_offset, store_temp_auto_offset, 0, 2);
1591static SENSOR_DEVICE_ATTR_2(temp3_auto_offset2, S_IWUSR | S_IRUGO,
1592                          show_temp_auto_offset, store_temp_auto_offset, 1, 2);
1593static SENSOR_DEVICE_ATTR_2(temp3_auto_offset3, S_IWUSR | S_IRUGO,
1594                          show_temp_auto_offset, store_temp_auto_offset, 2, 2);
1595static SENSOR_DEVICE_ATTR_2(temp3_auto_offset4, S_IWUSR | S_IRUGO,
1596                          show_temp_auto_offset, store_temp_auto_offset, 3, 2);
1597static SENSOR_DEVICE_ATTR_2(temp3_auto_offset5, S_IWUSR | S_IRUGO,
1598                          show_temp_auto_offset, store_temp_auto_offset, 4, 2);
1599static SENSOR_DEVICE_ATTR_2(temp3_auto_offset6, S_IWUSR | S_IRUGO,
1600                          show_temp_auto_offset, store_temp_auto_offset, 5, 2);
1601static SENSOR_DEVICE_ATTR_2(temp3_auto_offset7, S_IWUSR | S_IRUGO,
1602                          show_temp_auto_offset, store_temp_auto_offset, 6, 2);
1603static SENSOR_DEVICE_ATTR_2(temp3_auto_offset8, S_IWUSR | S_IRUGO,
1604                          show_temp_auto_offset, store_temp_auto_offset, 7, 2);
1605static SENSOR_DEVICE_ATTR_2(temp3_auto_offset9, S_IWUSR | S_IRUGO,
1606                          show_temp_auto_offset, store_temp_auto_offset, 8, 2);
1607static SENSOR_DEVICE_ATTR_2(temp3_auto_offset10, S_IWUSR | S_IRUGO,
1608                          show_temp_auto_offset, store_temp_auto_offset, 9, 2);
1609static SENSOR_DEVICE_ATTR_2(temp3_auto_offset11, S_IWUSR | S_IRUGO,
1610                          show_temp_auto_offset, store_temp_auto_offset, 10, 2);
1611static SENSOR_DEVICE_ATTR_2(temp3_auto_offset12, S_IWUSR | S_IRUGO,
1612                          show_temp_auto_offset, store_temp_auto_offset, 11, 2);
1613
1614static ssize_t show_temp_auto_pwm_min(struct device *dev,
1615                                struct device_attribute *attr, char *buf)
1616{
1617        int nr = (to_sensor_dev_attr(attr))->index;
1618        u8 reg, ctl4;
1619        struct lm93_data *data = lm93_update_device(dev);
1620        reg = data->auto_pwm_min_hyst[nr/2] >> 4 & 0x0f;
1621        ctl4 = data->block9[nr][LM93_PWM_CTL4];
1622        return sprintf(buf, "%d\n", LM93_PWM_FROM_REG(reg, (ctl4 & 0x07) ?
1623                                LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
1624}
1625
1626static ssize_t store_temp_auto_pwm_min(struct device *dev,
1627                                        struct device_attribute *attr,
1628                                        const char *buf, size_t count)
1629{
1630        int nr = (to_sensor_dev_attr(attr))->index;
1631        struct i2c_client *client = to_i2c_client(dev);
1632        struct lm93_data *data = i2c_get_clientdata(client);
1633        u8 reg, ctl4;
1634        unsigned long val;
1635        int err;
1636
1637        err = kstrtoul(buf, 10, &val);
1638        if (err)
1639                return err;
1640
1641        mutex_lock(&data->update_lock);
1642        reg = lm93_read_byte(client, LM93_REG_PWM_MIN_HYST(nr));
1643        ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
1644        reg = (reg & 0x0f) |
1645                LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
1646                                LM93_PWM_MAP_LO_FREQ :
1647                                LM93_PWM_MAP_HI_FREQ) << 4;
1648        data->auto_pwm_min_hyst[nr/2] = reg;
1649        lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
1650        mutex_unlock(&data->update_lock);
1651        return count;
1652}
1653
1654static SENSOR_DEVICE_ATTR(temp1_auto_pwm_min, S_IWUSR | S_IRUGO,
1655                          show_temp_auto_pwm_min,
1656                          store_temp_auto_pwm_min, 0);
1657static SENSOR_DEVICE_ATTR(temp2_auto_pwm_min, S_IWUSR | S_IRUGO,
1658                          show_temp_auto_pwm_min,
1659                          store_temp_auto_pwm_min, 1);
1660static SENSOR_DEVICE_ATTR(temp3_auto_pwm_min, S_IWUSR | S_IRUGO,
1661                          show_temp_auto_pwm_min,
1662                          store_temp_auto_pwm_min, 2);
1663
1664static ssize_t show_temp_auto_offset_hyst(struct device *dev,
1665                                struct device_attribute *attr, char *buf)
1666{
1667        int nr = (to_sensor_dev_attr(attr))->index;
1668        struct lm93_data *data = lm93_update_device(dev);
1669        int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1670        return sprintf(buf, "%d\n", LM93_TEMP_OFFSET_FROM_REG(
1671                                        data->auto_pwm_min_hyst[nr / 2], mode));
1672}
1673
1674static ssize_t store_temp_auto_offset_hyst(struct device *dev,
1675                                                struct device_attribute *attr,
1676                                                const char *buf, size_t count)
1677{
1678        int nr = (to_sensor_dev_attr(attr))->index;
1679        struct i2c_client *client = to_i2c_client(dev);
1680        struct lm93_data *data = i2c_get_clientdata(client);
1681        u8 reg;
1682        unsigned long val;
1683        int err;
1684
1685        err = kstrtoul(buf, 10, &val);
1686        if (err)
1687                return err;
1688
1689        mutex_lock(&data->update_lock);
1690        /* force 0.5C/bit mode */
1691        data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1692        data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1693        lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1694        reg = data->auto_pwm_min_hyst[nr/2];
1695        reg = (reg & 0xf0) | (LM93_TEMP_OFFSET_TO_REG(val, 1) & 0x0f);
1696        data->auto_pwm_min_hyst[nr/2] = reg;
1697        lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
1698        mutex_unlock(&data->update_lock);
1699        return count;
1700}
1701
1702static SENSOR_DEVICE_ATTR(temp1_auto_offset_hyst, S_IWUSR | S_IRUGO,
1703                          show_temp_auto_offset_hyst,
1704                          store_temp_auto_offset_hyst, 0);
1705static SENSOR_DEVICE_ATTR(temp2_auto_offset_hyst, S_IWUSR | S_IRUGO,
1706                          show_temp_auto_offset_hyst,
1707                          store_temp_auto_offset_hyst, 1);
1708static SENSOR_DEVICE_ATTR(temp3_auto_offset_hyst, S_IWUSR | S_IRUGO,
1709                          show_temp_auto_offset_hyst,
1710                          store_temp_auto_offset_hyst, 2);
1711
1712static ssize_t show_fan_input(struct device *dev,
1713                struct device_attribute *attr, char *buf)
1714{
1715        struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
1716        int nr = s_attr->index;
1717        struct lm93_data *data = lm93_update_device(dev);
1718
1719        return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block5[nr]));
1720}
1721
1722static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
1723static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
1724static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2);
1725static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan_input, NULL, 3);
1726
1727static ssize_t show_fan_min(struct device *dev,
1728                              struct device_attribute *attr, char *buf)
1729{
1730        int nr = (to_sensor_dev_attr(attr))->index;
1731        struct lm93_data *data = lm93_update_device(dev);
1732
1733        return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block8[nr]));
1734}
1735
1736static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr,
1737                                const char *buf, size_t count)
1738{
1739        int nr = (to_sensor_dev_attr(attr))->index;
1740        struct i2c_client *client = to_i2c_client(dev);
1741        struct lm93_data *data = i2c_get_clientdata(client);
1742        unsigned long val;
1743        int err;
1744
1745        err = kstrtoul(buf, 10, &val);
1746        if (err)
1747                return err;
1748
1749        mutex_lock(&data->update_lock);
1750        data->block8[nr] = LM93_FAN_TO_REG(val);
1751        lm93_write_word(client, LM93_REG_FAN_MIN(nr), data->block8[nr]);
1752        mutex_unlock(&data->update_lock);
1753        return count;
1754}
1755
1756static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1757                          show_fan_min, store_fan_min, 0);
1758static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1759                          show_fan_min, store_fan_min, 1);
1760static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1761                          show_fan_min, store_fan_min, 2);
1762static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1763                          show_fan_min, store_fan_min, 3);
1764
1765/*
1766 * some tedious bit-twiddling here to deal with the register format:
1767 *
1768 *      data->sf_tach_to_pwm: (tach to pwm mapping bits)
1769 *
1770 *              bit |  7  |  6  |  5  |  4  |  3  |  2  |  1  |  0
1771 *                   T4:P2 T4:P1 T3:P2 T3:P1 T2:P2 T2:P1 T1:P2 T1:P1
1772 *
1773 *      data->sfc2: (enable bits)
1774 *
1775 *              bit |  3  |  2  |  1  |  0
1776 *                     T4    T3    T2    T1
1777 */
1778
1779static ssize_t show_fan_smart_tach(struct device *dev,
1780                                struct device_attribute *attr, char *buf)
1781{
1782        int nr = (to_sensor_dev_attr(attr))->index;
1783        struct lm93_data *data = lm93_update_device(dev);
1784        long rc = 0;
1785        int mapping;
1786
1787        /* extract the relevant mapping */
1788        mapping = (data->sf_tach_to_pwm >> (nr * 2)) & 0x03;
1789
1790        /* if there's a mapping and it's enabled */
1791        if (mapping && ((data->sfc2 >> nr) & 0x01))
1792                rc = mapping;
1793        return sprintf(buf, "%ld\n", rc);
1794}
1795
1796/*
1797 * helper function - must grab data->update_lock before calling
1798 * fan is 0-3, indicating fan1-fan4
1799 */
1800static void lm93_write_fan_smart_tach(struct i2c_client *client,
1801        struct lm93_data *data, int fan, long value)
1802{
1803        /* insert the new mapping and write it out */
1804        data->sf_tach_to_pwm = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
1805        data->sf_tach_to_pwm &= ~(0x3 << fan * 2);
1806        data->sf_tach_to_pwm |= value << fan * 2;
1807        lm93_write_byte(client, LM93_REG_SF_TACH_TO_PWM, data->sf_tach_to_pwm);
1808
1809        /* insert the enable bit and write it out */
1810        data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1811        if (value)
1812                data->sfc2 |= 1 << fan;
1813        else
1814                data->sfc2 &= ~(1 << fan);
1815        lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1816}
1817
1818static ssize_t store_fan_smart_tach(struct device *dev,
1819                                        struct device_attribute *attr,
1820                                        const char *buf, size_t count)
1821{
1822        int nr = (to_sensor_dev_attr(attr))->index;
1823        struct i2c_client *client = to_i2c_client(dev);
1824        struct lm93_data *data = i2c_get_clientdata(client);
1825        unsigned long val;
1826        int err;
1827
1828        err = kstrtoul(buf, 10, &val);
1829        if (err)
1830                return err;
1831
1832        mutex_lock(&data->update_lock);
1833        /* sanity test, ignore the write otherwise */
1834        if (val <= 2) {
1835                /* can't enable if pwm freq is 22.5KHz */
1836                if (val) {
1837                        u8 ctl4 = lm93_read_byte(client,
1838                                LM93_REG_PWM_CTL(val - 1, LM93_PWM_CTL4));
1839                        if ((ctl4 & 0x07) == 0)
1840                                val = 0;
1841                }
1842                lm93_write_fan_smart_tach(client, data, nr, val);
1843        }
1844        mutex_unlock(&data->update_lock);
1845        return count;
1846}
1847
1848static SENSOR_DEVICE_ATTR(fan1_smart_tach, S_IWUSR | S_IRUGO,
1849                          show_fan_smart_tach, store_fan_smart_tach, 0);
1850static SENSOR_DEVICE_ATTR(fan2_smart_tach, S_IWUSR | S_IRUGO,
1851                          show_fan_smart_tach, store_fan_smart_tach, 1);
1852static SENSOR_DEVICE_ATTR(fan3_smart_tach, S_IWUSR | S_IRUGO,
1853                          show_fan_smart_tach, store_fan_smart_tach, 2);
1854static SENSOR_DEVICE_ATTR(fan4_smart_tach, S_IWUSR | S_IRUGO,
1855                          show_fan_smart_tach, store_fan_smart_tach, 3);
1856
1857static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
1858                        char *buf)
1859{
1860        int nr = (to_sensor_dev_attr(attr))->index;
1861        struct lm93_data *data = lm93_update_device(dev);
1862        u8 ctl2, ctl4;
1863        long rc;
1864
1865        ctl2 = data->block9[nr][LM93_PWM_CTL2];
1866        ctl4 = data->block9[nr][LM93_PWM_CTL4];
1867        if (ctl2 & 0x01) /* show user commanded value if enabled */
1868                rc = data->pwm_override[nr];
1869        else /* show present h/w value if manual pwm disabled */
1870                rc = LM93_PWM_FROM_REG(ctl2 >> 4, (ctl4 & 0x07) ?
1871                        LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ);
1872        return sprintf(buf, "%ld\n", rc);
1873}
1874
1875static ssize_t store_pwm(struct device *dev, struct device_attribute *attr,
1876                                const char *buf, size_t count)
1877{
1878        int nr = (to_sensor_dev_attr(attr))->index;
1879        struct i2c_client *client = to_i2c_client(dev);
1880        struct lm93_data *data = i2c_get_clientdata(client);
1881        u8 ctl2, ctl4;
1882        unsigned long val;
1883        int err;
1884
1885        err = kstrtoul(buf, 10, &val);
1886        if (err)
1887                return err;
1888
1889        mutex_lock(&data->update_lock);
1890        ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2));
1891        ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
1892        ctl2 = (ctl2 & 0x0f) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
1893                        LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ) << 4;
1894        /* save user commanded value */
1895        data->pwm_override[nr] = LM93_PWM_FROM_REG(ctl2 >> 4,
1896                        (ctl4 & 0x07) ?  LM93_PWM_MAP_LO_FREQ :
1897                        LM93_PWM_MAP_HI_FREQ);
1898        lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2);
1899        mutex_unlock(&data->update_lock);
1900        return count;
1901}
1902
1903static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1904static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1905
1906static ssize_t show_pwm_enable(struct device *dev,
1907                                struct device_attribute *attr, char *buf)
1908{
1909        int nr = (to_sensor_dev_attr(attr))->index;
1910        struct lm93_data *data = lm93_update_device(dev);
1911        u8 ctl2;
1912        long rc;
1913
1914        ctl2 = data->block9[nr][LM93_PWM_CTL2];
1915        if (ctl2 & 0x01) /* manual override enabled ? */
1916                rc = ((ctl2 & 0xF0) == 0xF0) ? 0 : 1;
1917        else
1918                rc = 2;
1919        return sprintf(buf, "%ld\n", rc);
1920}
1921
1922static ssize_t store_pwm_enable(struct device *dev,
1923                                struct device_attribute *attr,
1924                                const char *buf, size_t count)
1925{
1926        int nr = (to_sensor_dev_attr(attr))->index;
1927        struct i2c_client *client = to_i2c_client(dev);
1928        struct lm93_data *data = i2c_get_clientdata(client);
1929        u8 ctl2;
1930        unsigned long val;
1931        int err;
1932
1933        err = kstrtoul(buf, 10, &val);
1934        if (err)
1935                return err;
1936
1937        mutex_lock(&data->update_lock);
1938        ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2));
1939
1940        switch (val) {
1941        case 0:
1942                ctl2 |= 0xF1; /* enable manual override, set PWM to max */
1943                break;
1944        case 1:
1945                ctl2 |= 0x01; /* enable manual override */
1946                break;
1947        case 2:
1948                ctl2 &= ~0x01; /* disable manual override */
1949                break;
1950        default:
1951                mutex_unlock(&data->update_lock);
1952                return -EINVAL;
1953        }
1954
1955        lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2);
1956        mutex_unlock(&data->update_lock);
1957        return count;
1958}
1959
1960static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1961                                show_pwm_enable, store_pwm_enable, 0);
1962static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1963                                show_pwm_enable, store_pwm_enable, 1);
1964
1965static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
1966                                char *buf)
1967{
1968        int nr = (to_sensor_dev_attr(attr))->index;
1969        struct lm93_data *data = lm93_update_device(dev);
1970        u8 ctl4;
1971
1972        ctl4 = data->block9[nr][LM93_PWM_CTL4];
1973        return sprintf(buf, "%d\n", LM93_PWM_FREQ_FROM_REG(ctl4));
1974}
1975
1976/*
1977 * helper function - must grab data->update_lock before calling
1978 * pwm is 0-1, indicating pwm1-pwm2
1979 * this disables smart tach for all tach channels bound to the given pwm
1980 */
1981static void lm93_disable_fan_smart_tach(struct i2c_client *client,
1982        struct lm93_data *data, int pwm)
1983{
1984        int mapping = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
1985        int mask;
1986
1987        /* collapse the mapping into a mask of enable bits */
1988        mapping = (mapping >> pwm) & 0x55;
1989        mask = mapping & 0x01;
1990        mask |= (mapping & 0x04) >> 1;
1991        mask |= (mapping & 0x10) >> 2;
1992        mask |= (mapping & 0x40) >> 3;
1993
1994        /* disable smart tach according to the mask */
1995        data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1996        data->sfc2 &= ~mask;
1997        lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1998}
1999
2000static ssize_t store_pwm_freq(struct device *dev,
2001                                struct device_attribute *attr,
2002                                const char *buf, size_t count)
2003{
2004        int nr = (to_sensor_dev_attr(attr))->index;
2005        struct i2c_client *client = to_i2c_client(dev);
2006        struct lm93_data *data = i2c_get_clientdata(client);
2007        u8 ctl4;
2008        unsigned long val;
2009        int err;
2010
2011        err = kstrtoul(buf, 10, &val);
2012        if (err)
2013                return err;
2014
2015        mutex_lock(&data->update_lock);
2016        ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
2017        ctl4 = (ctl4 & 0xf8) | LM93_PWM_FREQ_TO_REG(val);
2018        data->block9[nr][LM93_PWM_CTL4] = ctl4;
2019        /* ctl4 == 0 -> 22.5KHz -> disable smart tach */
2020        if (!ctl4)
2021                lm93_disable_fan_smart_tach(client, data, nr);
2022        lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4), ctl4);
2023        mutex_unlock(&data->update_lock);
2024        return count;
2025}
2026
2027static SENSOR_DEVICE_ATTR(pwm1_freq, S_IWUSR | S_IRUGO,
2028                          show_pwm_freq, store_pwm_freq, 0);
2029static SENSOR_DEVICE_ATTR(pwm2_freq, S_IWUSR | S_IRUGO,
2030                          show_pwm_freq, store_pwm_freq, 1);
2031
2032static ssize_t show_pwm_auto_channels(struct device *dev,
2033                                struct device_attribute *attr, char *buf)
2034{
2035        int nr = (to_sensor_dev_attr(attr))->index;
2036        struct lm93_data *data = lm93_update_device(dev);
2037        return sprintf(buf, "%d\n", data->block9[nr][LM93_PWM_CTL1]);
2038}
2039
2040static ssize_t store_pwm_auto_channels(struct device *dev,
2041                                        struct device_attribute *attr,
2042                                        const char *buf, size_t count)
2043{
2044        int nr = (to_sensor_dev_attr(attr))->index;
2045        struct i2c_client *client = to_i2c_client(dev);
2046        struct lm93_data *data = i2c_get_clientdata(client);
2047        unsigned long val;
2048        int err;
2049
2050        err = kstrtoul(buf, 10, &val);
2051        if (err)
2052                return err;
2053
2054        mutex_lock(&data->update_lock);
2055        data->block9[nr][LM93_PWM_CTL1] = SENSORS_LIMIT(val, 0, 255);
2056        lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL1),
2057                                data->block9[nr][LM93_PWM_CTL1]);
2058        mutex_unlock(&data->update_lock);
2059        return count;
2060}
2061
2062static SENSOR_DEVICE_ATTR(pwm1_auto_channels, S_IWUSR | S_IRUGO,
2063                          show_pwm_auto_channels, store_pwm_auto_channels, 0);
2064static SENSOR_DEVICE_ATTR(pwm2_auto_channels, S_IWUSR | S_IRUGO,
2065                          show_pwm_auto_channels, store_pwm_auto_channels, 1);
2066
2067static ssize_t show_pwm_auto_spinup_min(struct device *dev,
2068                                struct device_attribute *attr, char *buf)
2069{
2070        int nr = (to_sensor_dev_attr(attr))->index;
2071        struct lm93_data *data = lm93_update_device(dev);
2072        u8 ctl3, ctl4;
2073
2074        ctl3 = data->block9[nr][LM93_PWM_CTL3];
2075        ctl4 = data->block9[nr][LM93_PWM_CTL4];
2076        return sprintf(buf, "%d\n",
2077                       LM93_PWM_FROM_REG(ctl3 & 0x0f, (ctl4 & 0x07) ?
2078                        LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
2079}
2080
2081static ssize_t store_pwm_auto_spinup_min(struct device *dev,
2082                                                struct device_attribute *attr,
2083                                                const char *buf, size_t count)
2084{
2085        int nr = (to_sensor_dev_attr(attr))->index;
2086        struct i2c_client *client = to_i2c_client(dev);
2087        struct lm93_data *data = i2c_get_clientdata(client);
2088        u8 ctl3, ctl4;
2089        unsigned long val;
2090        int err;
2091
2092        err = kstrtoul(buf, 10, &val);
2093        if (err)
2094                return err;
2095
2096        mutex_lock(&data->update_lock);
2097        ctl3 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
2098        ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
2099        ctl3 = (ctl3 & 0xf0) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
2100                        LM93_PWM_MAP_LO_FREQ :
2101                        LM93_PWM_MAP_HI_FREQ);
2102        data->block9[nr][LM93_PWM_CTL3] = ctl3;
2103        lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
2104        mutex_unlock(&data->update_lock);
2105        return count;
2106}
2107
2108static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_min, S_IWUSR | S_IRUGO,
2109                          show_pwm_auto_spinup_min,
2110                          store_pwm_auto_spinup_min, 0);
2111static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_min, S_IWUSR | S_IRUGO,
2112                          show_pwm_auto_spinup_min,
2113                          store_pwm_auto_spinup_min, 1);
2114
2115static ssize_t show_pwm_auto_spinup_time(struct device *dev,
2116                                struct device_attribute *attr, char *buf)
2117{
2118        int nr = (to_sensor_dev_attr(attr))->index;
2119        struct lm93_data *data = lm93_update_device(dev);
2120        return sprintf(buf, "%d\n", LM93_SPINUP_TIME_FROM_REG(
2121                                data->block9[nr][LM93_PWM_CTL3]));
2122}
2123
2124static ssize_t store_pwm_auto_spinup_time(struct device *dev,
2125                                                struct device_attribute *attr,
2126                                                const char *buf, size_t count)
2127{
2128        int nr = (to_sensor_dev_attr(attr))->index;
2129        struct i2c_client *client = to_i2c_client(dev);
2130        struct lm93_data *data = i2c_get_clientdata(client);
2131        u8 ctl3;
2132        unsigned long val;
2133        int err;
2134
2135        err = kstrtoul(buf, 10, &val);
2136        if (err)
2137                return err;
2138
2139        mutex_lock(&data->update_lock);
2140        ctl3 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
2141        ctl3 = (ctl3 & 0x1f) | (LM93_SPINUP_TIME_TO_REG(val) << 5 & 0xe0);
2142        data->block9[nr][LM93_PWM_CTL3] = ctl3;
2143        lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
2144        mutex_unlock(&data->update_lock);
2145        return count;
2146}
2147
2148static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_time, S_IWUSR | S_IRUGO,
2149                          show_pwm_auto_spinup_time,
2150                          store_pwm_auto_spinup_time, 0);
2151static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_time, S_IWUSR | S_IRUGO,
2152                          show_pwm_auto_spinup_time,
2153                          store_pwm_auto_spinup_time, 1);
2154
2155static ssize_t show_pwm_auto_prochot_ramp(struct device *dev,
2156                                struct device_attribute *attr, char *buf)
2157{
2158        struct lm93_data *data = lm93_update_device(dev);
2159        return sprintf(buf, "%d\n",
2160                       LM93_RAMP_FROM_REG(data->pwm_ramp_ctl >> 4 & 0x0f));
2161}
2162
2163static ssize_t store_pwm_auto_prochot_ramp(struct device *dev,
2164                                                struct device_attribute *attr,
2165                                                const char *buf, size_t count)
2166{
2167        struct i2c_client *client = to_i2c_client(dev);
2168        struct lm93_data *data = i2c_get_clientdata(client);
2169        u8 ramp;
2170        unsigned long val;
2171        int err;
2172
2173        err = kstrtoul(buf, 10, &val);
2174        if (err)
2175                return err;
2176
2177        mutex_lock(&data->update_lock);
2178        ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
2179        ramp = (ramp & 0x0f) | (LM93_RAMP_TO_REG(val) << 4 & 0xf0);
2180        lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
2181        mutex_unlock(&data->update_lock);
2182        return count;
2183}
2184
2185static DEVICE_ATTR(pwm_auto_prochot_ramp, S_IRUGO | S_IWUSR,
2186                        show_pwm_auto_prochot_ramp,
2187                        store_pwm_auto_prochot_ramp);
2188
2189static ssize_t show_pwm_auto_vrdhot_ramp(struct device *dev,
2190                                struct device_attribute *attr, char *buf)
2191{
2192        struct lm93_data *data = lm93_update_device(dev);
2193        return sprintf(buf, "%d\n",
2194                       LM93_RAMP_FROM_REG(data->pwm_ramp_ctl & 0x0f));
2195}
2196
2197static ssize_t store_pwm_auto_vrdhot_ramp(struct device *dev,
2198                                                struct device_attribute *attr,
2199                                                const char *buf, size_t count)
2200{
2201        struct i2c_client *client = to_i2c_client(dev);
2202        struct lm93_data *data = i2c_get_clientdata(client);
2203        u8 ramp;
2204        unsigned long val;
2205        int err;
2206
2207        err = kstrtoul(buf, 10, &val);
2208        if (err)
2209                return err;
2210
2211        mutex_lock(&data->update_lock);
2212        ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
2213        ramp = (ramp & 0xf0) | (LM93_RAMP_TO_REG(val) & 0x0f);
2214        lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
2215        mutex_unlock(&data->update_lock);
2216        return 0;
2217}
2218
2219static DEVICE_ATTR(pwm_auto_vrdhot_ramp, S_IRUGO | S_IWUSR,
2220                        show_pwm_auto_vrdhot_ramp,
2221                        store_pwm_auto_vrdhot_ramp);
2222
2223static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
2224                        char *buf)
2225{
2226        int nr = (to_sensor_dev_attr(attr))->index;
2227        struct lm93_data *data = lm93_update_device(dev);
2228        return sprintf(buf, "%d\n", LM93_VID_FROM_REG(data->vid[nr]));
2229}
2230
2231static SENSOR_DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL, 0);
2232static SENSOR_DEVICE_ATTR(cpu1_vid, S_IRUGO, show_vid, NULL, 1);
2233
2234static ssize_t show_prochot(struct device *dev, struct device_attribute *attr,
2235                                char *buf)
2236{
2237        int nr = (to_sensor_dev_attr(attr))->index;
2238        struct lm93_data *data = lm93_update_device(dev);
2239        return sprintf(buf, "%d\n", data->block4[nr].cur);
2240}
2241
2242static SENSOR_DEVICE_ATTR(prochot1, S_IRUGO, show_prochot, NULL, 0);
2243static SENSOR_DEVICE_ATTR(prochot2, S_IRUGO, show_prochot, NULL, 1);
2244
2245static ssize_t show_prochot_avg(struct device *dev,
2246                                struct device_attribute *attr, char *buf)
2247{
2248        int nr = (to_sensor_dev_attr(attr))->index;
2249        struct lm93_data *data = lm93_update_device(dev);
2250        return sprintf(buf, "%d\n", data->block4[nr].avg);
2251}
2252
2253static SENSOR_DEVICE_ATTR(prochot1_avg, S_IRUGO, show_prochot_avg, NULL, 0);
2254static SENSOR_DEVICE_ATTR(prochot2_avg, S_IRUGO, show_prochot_avg, NULL, 1);
2255
2256static ssize_t show_prochot_max(struct device *dev,
2257                                struct device_attribute *attr, char *buf)
2258{
2259        int nr = (to_sensor_dev_attr(attr))->index;
2260        struct lm93_data *data = lm93_update_device(dev);
2261        return sprintf(buf, "%d\n", data->prochot_max[nr]);
2262}
2263
2264static ssize_t store_prochot_max(struct device *dev,
2265                                        struct device_attribute *attr,
2266                                        const char *buf, size_t count)
2267{
2268        int nr = (to_sensor_dev_attr(attr))->index;
2269        struct i2c_client *client = to_i2c_client(dev);
2270        struct lm93_data *data = i2c_get_clientdata(client);
2271        unsigned long val;
2272        int err;
2273
2274        err = kstrtoul(buf, 10, &val);
2275        if (err)
2276                return err;
2277
2278        mutex_lock(&data->update_lock);
2279        data->prochot_max[nr] = LM93_PROCHOT_TO_REG(val);
2280        lm93_write_byte(client, LM93_REG_PROCHOT_MAX(nr),
2281                        data->prochot_max[nr]);
2282        mutex_unlock(&data->update_lock);
2283        return count;
2284}
2285
2286static SENSOR_DEVICE_ATTR(prochot1_max, S_IWUSR | S_IRUGO,
2287                          show_prochot_max, store_prochot_max, 0);
2288static SENSOR_DEVICE_ATTR(prochot2_max, S_IWUSR | S_IRUGO,
2289                          show_prochot_max, store_prochot_max, 1);
2290
2291static const u8 prochot_override_mask[] = { 0x80, 0x40 };
2292
2293static ssize_t show_prochot_override(struct device *dev,
2294                                struct device_attribute *attr, char *buf)
2295{
2296        int nr = (to_sensor_dev_attr(attr))->index;
2297        struct lm93_data *data = lm93_update_device(dev);
2298        return sprintf(buf, "%d\n",
2299                (data->prochot_override & prochot_override_mask[nr]) ? 1 : 0);
2300}
2301
2302static ssize_t store_prochot_override(struct device *dev,
2303                                        struct device_attribute *attr,
2304                                        const char *buf, size_t count)
2305{
2306        int nr = (to_sensor_dev_attr(attr))->index;
2307        struct i2c_client *client = to_i2c_client(dev);
2308        struct lm93_data *data = i2c_get_clientdata(client);
2309        unsigned long val;
2310        int err;
2311
2312        err = kstrtoul(buf, 10, &val);
2313        if (err)
2314                return err;
2315
2316        mutex_lock(&data->update_lock);
2317        if (val)
2318                data->prochot_override |= prochot_override_mask[nr];
2319        else
2320                data->prochot_override &= (~prochot_override_mask[nr]);
2321        lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
2322                        data->prochot_override);
2323        mutex_unlock(&data->update_lock);
2324        return count;
2325}
2326
2327static SENSOR_DEVICE_ATTR(prochot1_override, S_IWUSR | S_IRUGO,
2328                          show_prochot_override, store_prochot_override, 0);
2329static SENSOR_DEVICE_ATTR(prochot2_override, S_IWUSR | S_IRUGO,
2330                          show_prochot_override, store_prochot_override, 1);
2331
2332static ssize_t show_prochot_interval(struct device *dev,
2333                                struct device_attribute *attr, char *buf)
2334{
2335        int nr = (to_sensor_dev_attr(attr))->index;
2336        struct lm93_data *data = lm93_update_device(dev);
2337        u8 tmp;
2338        if (nr == 1)
2339                tmp = (data->prochot_interval & 0xf0) >> 4;
2340        else
2341                tmp = data->prochot_interval & 0x0f;
2342        return sprintf(buf, "%d\n", LM93_INTERVAL_FROM_REG(tmp));
2343}
2344
2345static ssize_t store_prochot_interval(struct device *dev,
2346                                        struct device_attribute *attr,
2347                                        const char *buf, size_t count)
2348{
2349        int nr = (to_sensor_dev_attr(attr))->index;
2350        struct i2c_client *client = to_i2c_client(dev);
2351        struct lm93_data *data = i2c_get_clientdata(client);
2352        u8 tmp;
2353        unsigned long val;
2354        int err;
2355
2356        err = kstrtoul(buf, 10, &val);
2357        if (err)
2358                return err;
2359
2360        mutex_lock(&data->update_lock);
2361        tmp = lm93_read_byte(client, LM93_REG_PROCHOT_INTERVAL);
2362        if (nr == 1)
2363                tmp = (tmp & 0x0f) | (LM93_INTERVAL_TO_REG(val) << 4);
2364        else
2365                tmp = (tmp & 0xf0) | LM93_INTERVAL_TO_REG(val);
2366        data->prochot_interval = tmp;
2367        lm93_write_byte(client, LM93_REG_PROCHOT_INTERVAL, tmp);
2368        mutex_unlock(&data->update_lock);
2369        return count;
2370}
2371
2372static SENSOR_DEVICE_ATTR(prochot1_interval, S_IWUSR | S_IRUGO,
2373                          show_prochot_interval, store_prochot_interval, 0);
2374static SENSOR_DEVICE_ATTR(prochot2_interval, S_IWUSR | S_IRUGO,
2375                          show_prochot_interval, store_prochot_interval, 1);
2376
2377static ssize_t show_prochot_override_duty_cycle(struct device *dev,
2378                                                struct device_attribute *attr,
2379                                                char *buf)
2380{
2381        struct lm93_data *data = lm93_update_device(dev);
2382        return sprintf(buf, "%d\n", data->prochot_override & 0x0f);
2383}
2384
2385static ssize_t store_prochot_override_duty_cycle(struct device *dev,
2386                                                struct device_attribute *attr,
2387                                                const char *buf, size_t count)
2388{
2389        struct i2c_client *client = to_i2c_client(dev);
2390        struct lm93_data *data = i2c_get_clientdata(client);
2391        unsigned long val;
2392        int err;
2393
2394        err = kstrtoul(buf, 10, &val);
2395        if (err)
2396                return err;
2397
2398        mutex_lock(&data->update_lock);
2399        data->prochot_override = (data->prochot_override & 0xf0) |
2400                                        SENSORS_LIMIT(val, 0, 15);
2401        lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
2402                        data->prochot_override);
2403        mutex_unlock(&data->update_lock);
2404        return count;
2405}
2406
2407static DEVICE_ATTR(prochot_override_duty_cycle, S_IRUGO | S_IWUSR,
2408                        show_prochot_override_duty_cycle,
2409                        store_prochot_override_duty_cycle);
2410
2411static ssize_t show_prochot_short(struct device *dev,
2412                                struct device_attribute *attr, char *buf)
2413{
2414        struct lm93_data *data = lm93_update_device(dev);
2415        return sprintf(buf, "%d\n", (data->config & 0x10) ? 1 : 0);
2416}
2417
2418static ssize_t store_prochot_short(struct device *dev,
2419                                        struct device_attribute *attr,
2420                                        const char *buf, size_t count)
2421{
2422        struct i2c_client *client = to_i2c_client(dev);
2423        struct lm93_data *data = i2c_get_clientdata(client);
2424        unsigned long val;
2425        int err;
2426
2427        err = kstrtoul(buf, 10, &val);
2428        if (err)
2429                return err;
2430
2431        mutex_lock(&data->update_lock);
2432        if (val)
2433                data->config |= 0x10;
2434        else
2435                data->config &= ~0x10;
2436        lm93_write_byte(client, LM93_REG_CONFIG, data->config);
2437        mutex_unlock(&data->update_lock);
2438        return count;
2439}
2440
2441static DEVICE_ATTR(prochot_short, S_IRUGO | S_IWUSR,
2442                   show_prochot_short, store_prochot_short);
2443
2444static ssize_t show_vrdhot(struct device *dev, struct device_attribute *attr,
2445                                char *buf)
2446{
2447        int nr = (to_sensor_dev_attr(attr))->index;
2448        struct lm93_data *data = lm93_update_device(dev);
2449        return sprintf(buf, "%d\n",
2450                       data->block1.host_status_1 & (1 << (nr + 4)) ? 1 : 0);
2451}
2452
2453static SENSOR_DEVICE_ATTR(vrdhot1, S_IRUGO, show_vrdhot, NULL, 0);
2454static SENSOR_DEVICE_ATTR(vrdhot2, S_IRUGO, show_vrdhot, NULL, 1);
2455
2456static ssize_t show_gpio(struct device *dev, struct device_attribute *attr,
2457                                char *buf)
2458{
2459        struct lm93_data *data = lm93_update_device(dev);
2460        return sprintf(buf, "%d\n", LM93_GPI_FROM_REG(data->gpi));
2461}
2462
2463static DEVICE_ATTR(gpio, S_IRUGO, show_gpio, NULL);
2464
2465static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
2466                                char *buf)
2467{
2468        struct lm93_data *data = lm93_update_device(dev);
2469        return sprintf(buf, "%d\n", LM93_ALARMS_FROM_REG(data->block1));
2470}
2471
2472static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
2473
2474static struct attribute *lm93_attrs[] = {
2475        &sensor_dev_attr_in1_input.dev_attr.attr,
2476        &sensor_dev_attr_in2_input.dev_attr.attr,
2477        &sensor_dev_attr_in3_input.dev_attr.attr,
2478        &sensor_dev_attr_in4_input.dev_attr.attr,
2479        &sensor_dev_attr_in5_input.dev_attr.attr,
2480        &sensor_dev_attr_in6_input.dev_attr.attr,
2481        &sensor_dev_attr_in7_input.dev_attr.attr,
2482        &sensor_dev_attr_in8_input.dev_attr.attr,
2483        &sensor_dev_attr_in9_input.dev_attr.attr,
2484        &sensor_dev_attr_in10_input.dev_attr.attr,
2485        &sensor_dev_attr_in11_input.dev_attr.attr,
2486        &sensor_dev_attr_in12_input.dev_attr.attr,
2487        &sensor_dev_attr_in13_input.dev_attr.attr,
2488        &sensor_dev_attr_in14_input.dev_attr.attr,
2489        &sensor_dev_attr_in15_input.dev_attr.attr,
2490        &sensor_dev_attr_in16_input.dev_attr.attr,
2491        &sensor_dev_attr_in1_min.dev_attr.attr,
2492        &sensor_dev_attr_in2_min.dev_attr.attr,
2493        &sensor_dev_attr_in3_min.dev_attr.attr,
2494        &sensor_dev_attr_in4_min.dev_attr.attr,
2495        &sensor_dev_attr_in5_min.dev_attr.attr,
2496        &sensor_dev_attr_in6_min.dev_attr.attr,
2497        &sensor_dev_attr_in7_min.dev_attr.attr,
2498        &sensor_dev_attr_in8_min.dev_attr.attr,
2499        &sensor_dev_attr_in9_min.dev_attr.attr,
2500        &sensor_dev_attr_in10_min.dev_attr.attr,
2501        &sensor_dev_attr_in11_min.dev_attr.attr,
2502        &sensor_dev_attr_in12_min.dev_attr.attr,
2503        &sensor_dev_attr_in13_min.dev_attr.attr,
2504        &sensor_dev_attr_in14_min.dev_attr.attr,
2505        &sensor_dev_attr_in15_min.dev_attr.attr,
2506        &sensor_dev_attr_in16_min.dev_attr.attr,
2507        &sensor_dev_attr_in1_max.dev_attr.attr,
2508        &sensor_dev_attr_in2_max.dev_attr.attr,
2509        &sensor_dev_attr_in3_max.dev_attr.attr,
2510        &sensor_dev_attr_in4_max.dev_attr.attr,
2511        &sensor_dev_attr_in5_max.dev_attr.attr,
2512        &sensor_dev_attr_in6_max.dev_attr.attr,
2513        &sensor_dev_attr_in7_max.dev_attr.attr,
2514        &sensor_dev_attr_in8_max.dev_attr.attr,
2515        &sensor_dev_attr_in9_max.dev_attr.attr,
2516        &sensor_dev_attr_in10_max.dev_attr.attr,
2517        &sensor_dev_attr_in11_max.dev_attr.attr,
2518        &sensor_dev_attr_in12_max.dev_attr.attr,
2519        &sensor_dev_attr_in13_max.dev_attr.attr,
2520        &sensor_dev_attr_in14_max.dev_attr.attr,
2521        &sensor_dev_attr_in15_max.dev_attr.attr,
2522        &sensor_dev_attr_in16_max.dev_attr.attr,
2523        &sensor_dev_attr_temp1_input.dev_attr.attr,
2524        &sensor_dev_attr_temp2_input.dev_attr.attr,
2525        &sensor_dev_attr_temp3_input.dev_attr.attr,
2526        &sensor_dev_attr_temp1_min.dev_attr.attr,
2527        &sensor_dev_attr_temp2_min.dev_attr.attr,
2528        &sensor_dev_attr_temp3_min.dev_attr.attr,
2529        &sensor_dev_attr_temp1_max.dev_attr.attr,
2530        &sensor_dev_attr_temp2_max.dev_attr.attr,
2531        &sensor_dev_attr_temp3_max.dev_attr.attr,
2532        &sensor_dev_attr_temp1_auto_base.dev_attr.attr,
2533        &sensor_dev_attr_temp2_auto_base.dev_attr.attr,
2534        &sensor_dev_attr_temp3_auto_base.dev_attr.attr,
2535        &sensor_dev_attr_temp1_auto_boost.dev_attr.attr,
2536        &sensor_dev_attr_temp2_auto_boost.dev_attr.attr,
2537        &sensor_dev_attr_temp3_auto_boost.dev_attr.attr,
2538        &sensor_dev_attr_temp1_auto_boost_hyst.dev_attr.attr,
2539        &sensor_dev_attr_temp2_auto_boost_hyst.dev_attr.attr,
2540        &sensor_dev_attr_temp3_auto_boost_hyst.dev_attr.attr,
2541        &sensor_dev_attr_temp1_auto_offset1.dev_attr.attr,
2542        &sensor_dev_attr_temp1_auto_offset2.dev_attr.attr,
2543        &sensor_dev_attr_temp1_auto_offset3.dev_attr.attr,
2544        &sensor_dev_attr_temp1_auto_offset4.dev_attr.attr,
2545        &sensor_dev_attr_temp1_auto_offset5.dev_attr.attr,
2546        &sensor_dev_attr_temp1_auto_offset6.dev_attr.attr,
2547        &sensor_dev_attr_temp1_auto_offset7.dev_attr.attr,
2548        &sensor_dev_attr_temp1_auto_offset8.dev_attr.attr,
2549        &sensor_dev_attr_temp1_auto_offset9.dev_attr.attr,
2550        &sensor_dev_attr_temp1_auto_offset10.dev_attr.attr,
2551        &sensor_dev_attr_temp1_auto_offset11.dev_attr.attr,
2552        &sensor_dev_attr_temp1_auto_offset12.dev_attr.attr,
2553        &sensor_dev_attr_temp2_auto_offset1.dev_attr.attr,
2554        &sensor_dev_attr_temp2_auto_offset2.dev_attr.attr,
2555        &sensor_dev_attr_temp2_auto_offset3.dev_attr.attr,
2556        &sensor_dev_attr_temp2_auto_offset4.dev_attr.attr,
2557        &sensor_dev_attr_temp2_auto_offset5.dev_attr.attr,
2558        &sensor_dev_attr_temp2_auto_offset6.dev_attr.attr,
2559        &sensor_dev_attr_temp2_auto_offset7.dev_attr.attr,
2560        &sensor_dev_attr_temp2_auto_offset8.dev_attr.attr,
2561        &sensor_dev_attr_temp2_auto_offset9.dev_attr.attr,
2562        &sensor_dev_attr_temp2_auto_offset10.dev_attr.attr,
2563        &sensor_dev_attr_temp2_auto_offset11.dev_attr.attr,
2564        &sensor_dev_attr_temp2_auto_offset12.dev_attr.attr,
2565        &sensor_dev_attr_temp3_auto_offset1.dev_attr.attr,
2566        &sensor_dev_attr_temp3_auto_offset2.dev_attr.attr,
2567        &sensor_dev_attr_temp3_auto_offset3.dev_attr.attr,
2568        &sensor_dev_attr_temp3_auto_offset4.dev_attr.attr,
2569        &sensor_dev_attr_temp3_auto_offset5.dev_attr.attr,
2570        &sensor_dev_attr_temp3_auto_offset6.dev_attr.attr,
2571        &sensor_dev_attr_temp3_auto_offset7.dev_attr.attr,
2572        &sensor_dev_attr_temp3_auto_offset8.dev_attr.attr,
2573        &sensor_dev_attr_temp3_auto_offset9.dev_attr.attr,
2574        &sensor_dev_attr_temp3_auto_offset10.dev_attr.attr,
2575        &sensor_dev_attr_temp3_auto_offset11.dev_attr.attr,
2576        &sensor_dev_attr_temp3_auto_offset12.dev_attr.attr,
2577        &sensor_dev_attr_temp1_auto_pwm_min.dev_attr.attr,
2578        &sensor_dev_attr_temp2_auto_pwm_min.dev_attr.attr,
2579        &sensor_dev_attr_temp3_auto_pwm_min.dev_attr.attr,
2580        &sensor_dev_attr_temp1_auto_offset_hyst.dev_attr.attr,
2581        &sensor_dev_attr_temp2_auto_offset_hyst.dev_attr.attr,
2582        &sensor_dev_attr_temp3_auto_offset_hyst.dev_attr.attr,
2583        &sensor_dev_attr_fan1_input.dev_attr.attr,
2584        &sensor_dev_attr_fan2_input.dev_attr.attr,
2585        &sensor_dev_attr_fan3_input.dev_attr.attr,
2586        &sensor_dev_attr_fan4_input.dev_attr.attr,
2587        &sensor_dev_attr_fan1_min.dev_attr.attr,
2588        &sensor_dev_attr_fan2_min.dev_attr.attr,
2589        &sensor_dev_attr_fan3_min.dev_attr.attr,
2590        &sensor_dev_attr_fan4_min.dev_attr.attr,
2591        &sensor_dev_attr_fan1_smart_tach.dev_attr.attr,
2592        &sensor_dev_attr_fan2_smart_tach.dev_attr.attr,
2593        &sensor_dev_attr_fan3_smart_tach.dev_attr.attr,
2594        &sensor_dev_attr_fan4_smart_tach.dev_attr.attr,
2595        &sensor_dev_attr_pwm1.dev_attr.attr,
2596        &sensor_dev_attr_pwm2.dev_attr.attr,
2597        &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2598        &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2599        &sensor_dev_attr_pwm1_freq.dev_attr.attr,
2600        &sensor_dev_attr_pwm2_freq.dev_attr.attr,
2601        &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
2602        &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
2603        &sensor_dev_attr_pwm1_auto_spinup_min.dev_attr.attr,
2604        &sensor_dev_attr_pwm2_auto_spinup_min.dev_attr.attr,
2605        &sensor_dev_attr_pwm1_auto_spinup_time.dev_attr.attr,
2606        &sensor_dev_attr_pwm2_auto_spinup_time.dev_attr.attr,
2607        &dev_attr_pwm_auto_prochot_ramp.attr,
2608        &dev_attr_pwm_auto_vrdhot_ramp.attr,
2609        &sensor_dev_attr_cpu0_vid.dev_attr.attr,
2610        &sensor_dev_attr_cpu1_vid.dev_attr.attr,
2611        &sensor_dev_attr_prochot1.dev_attr.attr,
2612        &sensor_dev_attr_prochot2.dev_attr.attr,
2613        &sensor_dev_attr_prochot1_avg.dev_attr.attr,
2614        &sensor_dev_attr_prochot2_avg.dev_attr.attr,
2615        &sensor_dev_attr_prochot1_max.dev_attr.attr,
2616        &sensor_dev_attr_prochot2_max.dev_attr.attr,
2617        &sensor_dev_attr_prochot1_override.dev_attr.attr,
2618        &sensor_dev_attr_prochot2_override.dev_attr.attr,
2619        &sensor_dev_attr_prochot1_interval.dev_attr.attr,
2620        &sensor_dev_attr_prochot2_interval.dev_attr.attr,
2621        &dev_attr_prochot_override_duty_cycle.attr,
2622        &dev_attr_prochot_short.attr,
2623        &sensor_dev_attr_vrdhot1.dev_attr.attr,
2624        &sensor_dev_attr_vrdhot2.dev_attr.attr,
2625        &dev_attr_gpio.attr,
2626        &dev_attr_alarms.attr,
2627        NULL
2628};
2629
2630static struct attribute_group lm93_attr_grp = {
2631        .attrs = lm93_attrs,
2632};
2633
2634static void lm93_init_client(struct i2c_client *client)
2635{
2636        int i;
2637        u8 reg;
2638
2639        /* configure VID pin input thresholds */
2640        reg = lm93_read_byte(client, LM93_REG_GPI_VID_CTL);
2641        lm93_write_byte(client, LM93_REG_GPI_VID_CTL,
2642                        reg | (vid_agtl ? 0x03 : 0x00));
2643
2644        if (init) {
2645                /* enable #ALERT pin */
2646                reg = lm93_read_byte(client, LM93_REG_CONFIG);
2647                lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x08);
2648
2649                /* enable ASF mode for BMC status registers */
2650                reg = lm93_read_byte(client, LM93_REG_STATUS_CONTROL);
2651                lm93_write_byte(client, LM93_REG_STATUS_CONTROL, reg | 0x02);
2652
2653                /* set sleep state to S0 */
2654                lm93_write_byte(client, LM93_REG_SLEEP_CONTROL, 0);
2655
2656                /* unmask #VRDHOT and dynamic VCCP (if nec) error events */
2657                reg = lm93_read_byte(client, LM93_REG_MISC_ERR_MASK);
2658                reg &= ~0x03;
2659                reg &= ~(vccp_limit_type[0] ? 0x10 : 0);
2660                reg &= ~(vccp_limit_type[1] ? 0x20 : 0);
2661                lm93_write_byte(client, LM93_REG_MISC_ERR_MASK, reg);
2662        }
2663
2664        /* start monitoring */
2665        reg = lm93_read_byte(client, LM93_REG_CONFIG);
2666        lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x01);
2667
2668        /* spin until ready */
2669        for (i = 0; i < 20; i++) {
2670                msleep(10);
2671                if ((lm93_read_byte(client, LM93_REG_CONFIG) & 0x80) == 0x80)
2672                        return;
2673        }
2674
2675        dev_warn(&client->dev, "timed out waiting for sensor "
2676                 "chip to signal ready!\n");
2677}
2678
2679/* Return 0 if detection is successful, -ENODEV otherwise */
2680static int lm93_detect(struct i2c_client *client, struct i2c_board_info *info)
2681{
2682        struct i2c_adapter *adapter = client->adapter;
2683        int mfr, ver;
2684        const char *name;
2685
2686        if (!i2c_check_functionality(adapter, LM93_SMBUS_FUNC_MIN))
2687                return -ENODEV;
2688
2689        /* detection */
2690        mfr = lm93_read_byte(client, LM93_REG_MFR_ID);
2691        if (mfr != 0x01) {
2692                dev_dbg(&adapter->dev,
2693                        "detect failed, bad manufacturer id 0x%02x!\n", mfr);
2694                return -ENODEV;
2695        }
2696
2697        ver = lm93_read_byte(client, LM93_REG_VER);
2698        switch (ver) {
2699        case LM93_MFR_ID:
2700        case LM93_MFR_ID_PROTOTYPE:
2701                name = "lm93";
2702                break;
2703        case LM94_MFR_ID_2:
2704        case LM94_MFR_ID:
2705        case LM94_MFR_ID_PROTOTYPE:
2706                name = "lm94";
2707                break;
2708        default:
2709                dev_dbg(&adapter->dev,
2710                        "detect failed, bad version id 0x%02x!\n", ver);
2711                return -ENODEV;
2712        }
2713
2714        strlcpy(info->type, name, I2C_NAME_SIZE);
2715        dev_dbg(&adapter->dev, "loading %s at %d, 0x%02x\n",
2716                client->name, i2c_adapter_id(client->adapter),
2717                client->addr);
2718
2719        return 0;
2720}
2721
2722static int lm93_probe(struct i2c_client *client,
2723                      const struct i2c_device_id *id)
2724{
2725        struct lm93_data *data;
2726        int err, func;
2727        void (*update)(struct lm93_data *, struct i2c_client *);
2728
2729        /* choose update routine based on bus capabilities */
2730        func = i2c_get_functionality(client->adapter);
2731        if (((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) &&
2732                        (!disable_block)) {
2733                dev_dbg(&client->dev, "using SMBus block data transactions\n");
2734                update = lm93_update_client_full;
2735        } else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) {
2736                dev_dbg(&client->dev, "disabled SMBus block data "
2737                        "transactions\n");
2738                update = lm93_update_client_min;
2739        } else {
2740                dev_dbg(&client->dev, "detect failed, "
2741                        "smbus byte and/or word data not supported!\n");
2742                return -ENODEV;
2743        }
2744
2745        data = devm_kzalloc(&client->dev, sizeof(struct lm93_data), GFP_KERNEL);
2746        if (!data) {
2747                dev_dbg(&client->dev, "out of memory!\n");
2748                return -ENOMEM;
2749        }
2750        i2c_set_clientdata(client, data);
2751
2752        /* housekeeping */
2753        data->valid = 0;
2754        data->update = update;
2755        mutex_init(&data->update_lock);
2756
2757        /* initialize the chip */
2758        lm93_init_client(client);
2759
2760        err = sysfs_create_group(&client->dev.kobj, &lm93_attr_grp);
2761        if (err)
2762                return err;
2763
2764        /* Register hwmon driver class */
2765        data->hwmon_dev = hwmon_device_register(&client->dev);
2766        if (!IS_ERR(data->hwmon_dev))
2767                return 0;
2768
2769        err = PTR_ERR(data->hwmon_dev);
2770        dev_err(&client->dev, "error registering hwmon device.\n");
2771        sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
2772        return err;
2773}
2774
2775static int lm93_remove(struct i2c_client *client)
2776{
2777        struct lm93_data *data = i2c_get_clientdata(client);
2778
2779        hwmon_device_unregister(data->hwmon_dev);
2780        sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
2781
2782        return 0;
2783}
2784
2785static const struct i2c_device_id lm93_id[] = {
2786        { "lm93", 0 },
2787        { "lm94", 0 },
2788        { }
2789};
2790MODULE_DEVICE_TABLE(i2c, lm93_id);
2791
2792static struct i2c_driver lm93_driver = {
2793        .class          = I2C_CLASS_HWMON,
2794        .driver = {
2795                .name   = "lm93",
2796        },
2797        .probe          = lm93_probe,
2798        .remove         = lm93_remove,
2799        .id_table       = lm93_id,
2800        .detect         = lm93_detect,
2801        .address_list   = normal_i2c,
2802};
2803
2804module_i2c_driver(lm93_driver);
2805
2806MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>, "
2807                "Hans J. Koch <hjk@hansjkoch.de>");
2808MODULE_DESCRIPTION("LM93 driver");
2809MODULE_LICENSE("GPL");
2810
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