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 = clamp_val(val,
 375                                  lm93_vin_val_min[nr], lm93_vin_val_max[nr]);
 376
 377        /* try not to lose too much precision here */
 378        const long uv = mv * 1000;
 379        const long uv_max = lm93_vin_val_max[nr] * 1000;
 380        const long uv_min = lm93_vin_val_min[nr] * 1000;
 381
 382        /* convert */
 383        const long slope = (uv_max - uv_min) /
 384                (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]);
 385        const long intercept = uv_min - slope * lm93_vin_reg_min[nr];
 386
 387        u8 result = ((uv - intercept + (slope/2)) / slope);
 388        result = clamp_val(result,
 389                           lm93_vin_reg_min[nr], lm93_vin_reg_max[nr]);
 390        return result;
 391}
 392
 393/* vid in mV, upper == 0 indicates low limit, otherwise upper limit */
 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 = clamp_val(uv_offset, 12500, 200000);
 415                return (u8)((uv_offset /  12500 - 1) << 4);
 416        } else {
 417                uv_offset = clamp_val(uv_offset, -400000, -25000);
 418                return (u8)((uv_offset / -25000 - 1) << 0);
 419        }
 420}
 421
 422/*
 423 * TEMP: 1/1000 degrees C (-128C to +127C)
 424 * REG: 1C/bit, two's complement
 425 */
 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 = clamp_val(temp, LM93_TEMP_MIN, LM93_TEMP_MAX);
 441        ntemp += (ntemp < 0 ? -500 : 500);
 442        return (u8)(ntemp / 1000);
 443}
 444
 445/* Determine 4-bit temperature offset resolution */
 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 = clamp_val(off, LM93_TEMP_OFFSET_MIN,
 476                mode ? LM93_TEMP_OFFSET_MAX1 : LM93_TEMP_OFFSET_MAX0);
 477        return (u8)((off + factor/2) / factor);
 478}
 479
 480/* 0 <= nr <= 3 */
 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 = clamp_val(rpm, 1, 1000000);
 624                count = clamp_val((1350000 + rpm) / rpm, 1, 0x3ffe);
 625        }
 626
 627        regs = count << 2;
 628        return cpu_to_le16(regs);
 629}
 630
 631/*
 632 * PWM FREQ: HZ
 633 * REG: 0-7 as mapped below
 634 */
 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 = clamp_val(ramp, LM93_RAMP_MIN, LM93_RAMP_MAX);
 696        return (u8)((ramp + 2) / 5);
 697}
 698
 699/*
 700 * PROCHOT: 0-255, 0 => 0%, 255 => > 96.6%
 701 * REG: (same)
 702 */
 703static u8 LM93_PROCHOT_TO_REG(long prochot)
 704{
 705        prochot = clamp_val(prochot, 0, 255);
 706        return (u8)prochot;
 707}
 708
 709/*
 710 * PROCHOT-INTERVAL: 73 - 37200 (1/100 seconds)
 711 * REG: 0-9 as mapped below
 712 */
 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,
 822                                 "lm93: read byte data failed, address 0x%02x.\n",
 823                                 reg);
 824                        mdelay(i + 3);
 825                }
 826
 827        }
 828
 829        /* <TODO> what to return in case of error? */
 830        dev_err(&client->dev, "lm93: All read byte retries failed!!\n");
 831        return 0;
 832}
 833
 834static int lm93_write_byte(struct i2c_client *client, u8 reg, u8 value)
 835{
 836        int result;
 837
 838        /* <TODO> how to handle write errors? */
 839        result = i2c_smbus_write_byte_data(client, reg, value);
 840
 841        if (result < 0)
 842                dev_warn(&client->dev,
 843                         "lm93: write byte data failed, 0x%02x at address 0x%02x.\n",
 844                         value, reg);
 845
 846        return result;
 847}
 848
 849static u16 lm93_read_word(struct i2c_client *client, u8 reg)
 850{
 851        int value, i;
 852
 853        /* retry in case of read errors */
 854        for (i = 1; i <= MAX_RETRIES; i++) {
 855                value = i2c_smbus_read_word_data(client, reg);
 856                if (value >= 0) {
 857                        return value;
 858                } else {
 859                        dev_warn(&client->dev,
 860                                 "lm93: read word data failed, address 0x%02x.\n",
 861                                 reg);
 862                        mdelay(i + 3);
 863                }
 864
 865        }
 866
 867        /* <TODO> what to return in case of error? */
 868        dev_err(&client->dev, "lm93: All read word retries failed!!\n");
 869        return 0;
 870}
 871
 872static int lm93_write_word(struct i2c_client *client, u8 reg, u16 value)
 873{
 874        int result;
 875
 876        /* <TODO> how to handle write errors? */
 877        result = i2c_smbus_write_word_data(client, reg, value);
 878
 879        if (result < 0)
 880                dev_warn(&client->dev,
 881                         "lm93: write word data failed, 0x%04x at address 0x%02x.\n",
 882                         value, reg);
 883
 884        return result;
 885}
 886
 887static u8 lm93_block_buffer[I2C_SMBUS_BLOCK_MAX];
 888
 889/*
 890 * read block data into values, retry if not expected length
 891 * fbn => index to lm93_block_read_cmds table
 892 * (Fixed Block Number - section 14.5.2 of LM93 datasheet)
 893 */
 894static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values)
 895{
 896        int i, result = 0;
 897
 898        for (i = 1; i <= MAX_RETRIES; i++) {
 899                result = i2c_smbus_read_block_data(client,
 900                        lm93_block_read_cmds[fbn].cmd, lm93_block_buffer);
 901
 902                if (result == lm93_block_read_cmds[fbn].len) {
 903                        break;
 904                } else {
 905                        dev_warn(&client->dev,
 906                                 "lm93: block read data failed, command 0x%02x.\n",
 907                                 lm93_block_read_cmds[fbn].cmd);
 908                        mdelay(i + 3);
 909                }
 910        }
 911
 912        if (result == lm93_block_read_cmds[fbn].len) {
 913                memcpy(values, lm93_block_buffer,
 914                       lm93_block_read_cmds[fbn].len);
 915        } else {
 916                /* <TODO> what to do in case of error? */
 917        }
 918}
 919
 920static struct lm93_data *lm93_update_device(struct device *dev)
 921{
 922        struct i2c_client *client = to_i2c_client(dev);
 923        struct lm93_data *data = i2c_get_clientdata(client);
 924        const unsigned long interval = HZ + (HZ / 2);
 925
 926        mutex_lock(&data->update_lock);
 927
 928        if (time_after(jiffies, data->last_updated + interval) ||
 929                !data->valid) {
 930
 931                data->update(data, client);
 932                data->last_updated = jiffies;
 933                data->valid = 1;
 934        }
 935
 936        mutex_unlock(&data->update_lock);
 937        return data;
 938}
 939
 940/* update routine for data that has no corresponding SMBus block command */
 941static void lm93_update_client_common(struct lm93_data *data,
 942                                      struct i2c_client *client)
 943{
 944        int i;
 945        u8 *ptr;
 946
 947        /* temp1 - temp4: limits */
 948        for (i = 0; i < 4; i++) {
 949                data->temp_lim[i].min =
 950                        lm93_read_byte(client, LM93_REG_TEMP_MIN(i));
 951                data->temp_lim[i].max =
 952                        lm93_read_byte(client, LM93_REG_TEMP_MAX(i));
 953        }
 954
 955        /* config register */
 956        data->config = lm93_read_byte(client, LM93_REG_CONFIG);
 957
 958        /* vid1 - vid2: values */
 959        for (i = 0; i < 2; i++)
 960                data->vid[i] = lm93_read_byte(client, LM93_REG_VID(i));
 961
 962        /* prochot1 - prochot2: limits */
 963        for (i = 0; i < 2; i++)
 964                data->prochot_max[i] = lm93_read_byte(client,
 965                                LM93_REG_PROCHOT_MAX(i));
 966
 967        /* vccp1 - vccp2: VID relative limits */
 968        for (i = 0; i < 2; i++)
 969                data->vccp_limits[i] = lm93_read_byte(client,
 970                                LM93_REG_VCCP_LIMIT_OFF(i));
 971
 972        /* GPIO input state */
 973        data->gpi = lm93_read_byte(client, LM93_REG_GPI);
 974
 975        /* #PROCHOT override state */
 976        data->prochot_override = lm93_read_byte(client,
 977                        LM93_REG_PROCHOT_OVERRIDE);
 978
 979        /* #PROCHOT intervals */
 980        data->prochot_interval = lm93_read_byte(client,
 981                        LM93_REG_PROCHOT_INTERVAL);
 982
 983        /* Fan Boost Temperature registers */
 984        for (i = 0; i < 4; i++)
 985                data->boost[i] = lm93_read_byte(client, LM93_REG_BOOST(i));
 986
 987        /* Fan Boost Temperature Hyst. registers */
 988        data->boost_hyst[0] = lm93_read_byte(client, LM93_REG_BOOST_HYST_12);
 989        data->boost_hyst[1] = lm93_read_byte(client, LM93_REG_BOOST_HYST_34);
 990
 991        /* Temperature Zone Min. PWM & Hysteresis registers */
 992        data->auto_pwm_min_hyst[0] =
 993                        lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_12);
 994        data->auto_pwm_min_hyst[1] =
 995                        lm93_read_byte(client, LM93_REG_PWM_MIN_HYST_34);
 996
 997        /* #PROCHOT & #VRDHOT PWM Ramp Control register */
 998        data->pwm_ramp_ctl = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
 999
1000        /* misc setup registers */
1001        data->sfc1 = lm93_read_byte(client, LM93_REG_SFC1);
1002        data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1003        data->sf_tach_to_pwm = lm93_read_byte(client,
1004                        LM93_REG_SF_TACH_TO_PWM);
1005
1006        /* write back alarm values to clear */
1007        for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++)
1008                lm93_write_byte(client, LM93_REG_HOST_ERROR_1 + i, *(ptr + i));
1009}
1010
1011/* update routine which uses SMBus block data commands */
1012static void lm93_update_client_full(struct lm93_data *data,
1013                                    struct i2c_client *client)
1014{
1015        dev_dbg(&client->dev, "starting device update (block data enabled)\n");
1016
1017        /* in1 - in16: values & limits */
1018        lm93_read_block(client, 3, (u8 *)(data->block3));
1019        lm93_read_block(client, 7, (u8 *)(data->block7));
1020
1021        /* temp1 - temp4: values */
1022        lm93_read_block(client, 2, (u8 *)(data->block2));
1023
1024        /* prochot1 - prochot2: values */
1025        lm93_read_block(client, 4, (u8 *)(data->block4));
1026
1027        /* fan1 - fan4: values & limits */
1028        lm93_read_block(client, 5, (u8 *)(data->block5));
1029        lm93_read_block(client, 8, (u8 *)(data->block8));
1030
1031        /* pmw control registers */
1032        lm93_read_block(client, 9, (u8 *)(data->block9));
1033
1034        /* alarm values */
1035        lm93_read_block(client, 1, (u8 *)(&data->block1));
1036
1037        /* auto/pwm registers */
1038        lm93_read_block(client, 10, (u8 *)(&data->block10));
1039
1040        lm93_update_client_common(data, client);
1041}
1042
1043/* update routine which uses SMBus byte/word data commands only */
1044static void lm93_update_client_min(struct lm93_data *data,
1045                                   struct i2c_client *client)
1046{
1047        int i, j;
1048        u8 *ptr;
1049
1050        dev_dbg(&client->dev, "starting device update (block data disabled)\n");
1051
1052        /* in1 - in16: values & limits */
1053        for (i = 0; i < 16; i++) {
1054                data->block3[i] =
1055                        lm93_read_byte(client, LM93_REG_IN(i));
1056                data->block7[i].min =
1057                        lm93_read_byte(client, LM93_REG_IN_MIN(i));
1058                data->block7[i].max =
1059                        lm93_read_byte(client, LM93_REG_IN_MAX(i));
1060        }
1061
1062        /* temp1 - temp4: values */
1063        for (i = 0; i < 4; i++) {
1064                data->block2[i] =
1065                        lm93_read_byte(client, LM93_REG_TEMP(i));
1066        }
1067
1068        /* prochot1 - prochot2: values */
1069        for (i = 0; i < 2; i++) {
1070                data->block4[i].cur =
1071                        lm93_read_byte(client, LM93_REG_PROCHOT_CUR(i));
1072                data->block4[i].avg =
1073                        lm93_read_byte(client, LM93_REG_PROCHOT_AVG(i));
1074        }
1075
1076        /* fan1 - fan4: values & limits */
1077        for (i = 0; i < 4; i++) {
1078                data->block5[i] =
1079                        lm93_read_word(client, LM93_REG_FAN(i));
1080                data->block8[i] =
1081                        lm93_read_word(client, LM93_REG_FAN_MIN(i));
1082        }
1083
1084        /* pwm control registers */
1085        for (i = 0; i < 2; i++) {
1086                for (j = 0; j < 4; j++) {
1087                        data->block9[i][j] =
1088                                lm93_read_byte(client, LM93_REG_PWM_CTL(i, j));
1089                }
1090        }
1091
1092        /* alarm values */
1093        for (i = 0, ptr = (u8 *)(&data->block1); i < 8; i++) {
1094                *(ptr + i) =
1095                        lm93_read_byte(client, LM93_REG_HOST_ERROR_1 + i);
1096        }
1097
1098        /* auto/pwm (base temp) registers */
1099        for (i = 0; i < 4; i++) {
1100                data->block10.base[i] =
1101                        lm93_read_byte(client, LM93_REG_TEMP_BASE(i));
1102        }
1103
1104        /* auto/pwm (offset temp) registers */
1105        for (i = 0; i < 12; i++) {
1106                data->block10.offset[i] =
1107                        lm93_read_byte(client, LM93_REG_TEMP_OFFSET(i));
1108        }
1109
1110        lm93_update_client_common(data, client);
1111}
1112
1113/* following are the sysfs callback functions */
1114static ssize_t show_in(struct device *dev, struct device_attribute *attr,
1115                        char *buf)
1116{
1117        int nr = (to_sensor_dev_attr(attr))->index;
1118
1119        struct lm93_data *data = lm93_update_device(dev);
1120        return sprintf(buf, "%d\n", LM93_IN_FROM_REG(nr, data->block3[nr]));
1121}
1122
1123static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 0);
1124static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 1);
1125static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 2);
1126static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 3);
1127static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 4);
1128static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 5);
1129static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 6);
1130static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 7);
1131static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_in, NULL, 8);
1132static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_in, NULL, 9);
1133static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, show_in, NULL, 10);
1134static SENSOR_DEVICE_ATTR(in12_input, S_IRUGO, show_in, NULL, 11);
1135static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, show_in, NULL, 12);
1136static SENSOR_DEVICE_ATTR(in14_input, S_IRUGO, show_in, NULL, 13);
1137static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, show_in, NULL, 14);
1138static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, show_in, NULL, 15);
1139
1140static ssize_t show_in_min(struct device *dev,
1141                        struct device_attribute *attr, char *buf)
1142{
1143        int nr = (to_sensor_dev_attr(attr))->index;
1144        struct lm93_data *data = lm93_update_device(dev);
1145        int vccp = nr - 6;
1146        long rc, vid;
1147
1148        if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1149                vid = LM93_VID_FROM_REG(data->vid[vccp]);
1150                rc = LM93_IN_MIN_FROM_REG(data->vccp_limits[vccp], vid);
1151        } else {
1152                rc = LM93_IN_FROM_REG(nr, data->block7[nr].min);
1153        }
1154        return sprintf(buf, "%ld\n", rc);
1155}
1156
1157static ssize_t store_in_min(struct device *dev, struct device_attribute *attr,
1158                            const char *buf, size_t count)
1159{
1160        int nr = (to_sensor_dev_attr(attr))->index;
1161        struct i2c_client *client = to_i2c_client(dev);
1162        struct lm93_data *data = i2c_get_clientdata(client);
1163        int vccp = nr - 6;
1164        long vid;
1165        unsigned long val;
1166        int err;
1167
1168        err = kstrtoul(buf, 10, &val);
1169        if (err)
1170                return err;
1171
1172        mutex_lock(&data->update_lock);
1173        if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1174                vid = LM93_VID_FROM_REG(data->vid[vccp]);
1175                data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0xf0) |
1176                                LM93_IN_REL_TO_REG(val, 0, vid);
1177                lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
1178                                data->vccp_limits[vccp]);
1179        } else {
1180                data->block7[nr].min = LM93_IN_TO_REG(nr, val);
1181                lm93_write_byte(client, LM93_REG_IN_MIN(nr),
1182                                data->block7[nr].min);
1183        }
1184        mutex_unlock(&data->update_lock);
1185        return count;
1186}
1187
1188static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
1189                          show_in_min, store_in_min, 0);
1190static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
1191                          show_in_min, store_in_min, 1);
1192static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
1193                          show_in_min, store_in_min, 2);
1194static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
1195                          show_in_min, store_in_min, 3);
1196static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
1197                          show_in_min, store_in_min, 4);
1198static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
1199                          show_in_min, store_in_min, 5);
1200static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
1201                          show_in_min, store_in_min, 6);
1202static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
1203                          show_in_min, store_in_min, 7);
1204static SENSOR_DEVICE_ATTR(in9_min, S_IWUSR | S_IRUGO,
1205                          show_in_min, store_in_min, 8);
1206static SENSOR_DEVICE_ATTR(in10_min, S_IWUSR | S_IRUGO,
1207                          show_in_min, store_in_min, 9);
1208static SENSOR_DEVICE_ATTR(in11_min, S_IWUSR | S_IRUGO,
1209                          show_in_min, store_in_min, 10);
1210static SENSOR_DEVICE_ATTR(in12_min, S_IWUSR | S_IRUGO,
1211                          show_in_min, store_in_min, 11);
1212static SENSOR_DEVICE_ATTR(in13_min, S_IWUSR | S_IRUGO,
1213                          show_in_min, store_in_min, 12);
1214static SENSOR_DEVICE_ATTR(in14_min, S_IWUSR | S_IRUGO,
1215                          show_in_min, store_in_min, 13);
1216static SENSOR_DEVICE_ATTR(in15_min, S_IWUSR | S_IRUGO,
1217                          show_in_min, store_in_min, 14);
1218static SENSOR_DEVICE_ATTR(in16_min, S_IWUSR | S_IRUGO,
1219                          show_in_min, store_in_min, 15);
1220
1221static ssize_t show_in_max(struct device *dev,
1222                           struct device_attribute *attr, char *buf)
1223{
1224        int nr = (to_sensor_dev_attr(attr))->index;
1225        struct lm93_data *data = lm93_update_device(dev);
1226        int vccp = nr - 6;
1227        long rc, vid;
1228
1229        if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1230                vid = LM93_VID_FROM_REG(data->vid[vccp]);
1231                rc = LM93_IN_MAX_FROM_REG(data->vccp_limits[vccp], vid);
1232        } else {
1233                rc = LM93_IN_FROM_REG(nr, data->block7[nr].max);
1234        }
1235        return sprintf(buf, "%ld\n", rc);
1236}
1237
1238static ssize_t store_in_max(struct device *dev, struct device_attribute *attr,
1239                            const char *buf, size_t count)
1240{
1241        int nr = (to_sensor_dev_attr(attr))->index;
1242        struct i2c_client *client = to_i2c_client(dev);
1243        struct lm93_data *data = i2c_get_clientdata(client);
1244        int vccp = nr - 6;
1245        long vid;
1246        unsigned long val;
1247        int err;
1248
1249        err = kstrtoul(buf, 10, &val);
1250        if (err)
1251                return err;
1252
1253        mutex_lock(&data->update_lock);
1254        if ((nr == 6 || nr == 7) && vccp_limit_type[vccp]) {
1255                vid = LM93_VID_FROM_REG(data->vid[vccp]);
1256                data->vccp_limits[vccp] = (data->vccp_limits[vccp] & 0x0f) |
1257                                LM93_IN_REL_TO_REG(val, 1, vid);
1258                lm93_write_byte(client, LM93_REG_VCCP_LIMIT_OFF(vccp),
1259                                data->vccp_limits[vccp]);
1260        } else {
1261                data->block7[nr].max = LM93_IN_TO_REG(nr, val);
1262                lm93_write_byte(client, LM93_REG_IN_MAX(nr),
1263                                data->block7[nr].max);
1264        }
1265        mutex_unlock(&data->update_lock);
1266        return count;
1267}
1268
1269static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
1270                          show_in_max, store_in_max, 0);
1271static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
1272                          show_in_max, store_in_max, 1);
1273static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1274                          show_in_max, store_in_max, 2);
1275static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1276                          show_in_max, store_in_max, 3);
1277static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1278                          show_in_max, store_in_max, 4);
1279static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1280                          show_in_max, store_in_max, 5);
1281static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1282                          show_in_max, store_in_max, 6);
1283static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1284                          show_in_max, store_in_max, 7);
1285static SENSOR_DEVICE_ATTR(in9_max, S_IWUSR | S_IRUGO,
1286                          show_in_max, store_in_max, 8);
1287static SENSOR_DEVICE_ATTR(in10_max, S_IWUSR | S_IRUGO,
1288                          show_in_max, store_in_max, 9);
1289static SENSOR_DEVICE_ATTR(in11_max, S_IWUSR | S_IRUGO,
1290                          show_in_max, store_in_max, 10);
1291static SENSOR_DEVICE_ATTR(in12_max, S_IWUSR | S_IRUGO,
1292                          show_in_max, store_in_max, 11);
1293static SENSOR_DEVICE_ATTR(in13_max, S_IWUSR | S_IRUGO,
1294                          show_in_max, store_in_max, 12);
1295static SENSOR_DEVICE_ATTR(in14_max, S_IWUSR | S_IRUGO,
1296                          show_in_max, store_in_max, 13);
1297static SENSOR_DEVICE_ATTR(in15_max, S_IWUSR | S_IRUGO,
1298                          show_in_max, store_in_max, 14);
1299static SENSOR_DEVICE_ATTR(in16_max, S_IWUSR | S_IRUGO,
1300                          show_in_max, store_in_max, 15);
1301
1302static ssize_t show_temp(struct device *dev,
1303                         struct device_attribute *attr, char *buf)
1304{
1305        int nr = (to_sensor_dev_attr(attr))->index;
1306        struct lm93_data *data = lm93_update_device(dev);
1307        return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->block2[nr]));
1308}
1309
1310static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
1311static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
1312static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
1313
1314static ssize_t show_temp_min(struct device *dev,
1315                                struct device_attribute *attr, char *buf)
1316{
1317        int nr = (to_sensor_dev_attr(attr))->index;
1318        struct lm93_data *data = lm93_update_device(dev);
1319        return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->temp_lim[nr].min));
1320}
1321
1322static ssize_t store_temp_min(struct device *dev, struct device_attribute *attr,
1323                              const char *buf, size_t count)
1324{
1325        int nr = (to_sensor_dev_attr(attr))->index;
1326        struct i2c_client *client = to_i2c_client(dev);
1327        struct lm93_data *data = i2c_get_clientdata(client);
1328        long val;
1329        int err;
1330
1331        err = kstrtol(buf, 10, &val);
1332        if (err)
1333                return err;
1334
1335        mutex_lock(&data->update_lock);
1336        data->temp_lim[nr].min = LM93_TEMP_TO_REG(val);
1337        lm93_write_byte(client, LM93_REG_TEMP_MIN(nr), data->temp_lim[nr].min);
1338        mutex_unlock(&data->update_lock);
1339        return count;
1340}
1341
1342static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO,
1343                          show_temp_min, store_temp_min, 0);
1344static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO,
1345                          show_temp_min, store_temp_min, 1);
1346static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO,
1347                          show_temp_min, store_temp_min, 2);
1348
1349static ssize_t show_temp_max(struct device *dev,
1350                             struct device_attribute *attr, char *buf)
1351{
1352        int nr = (to_sensor_dev_attr(attr))->index;
1353        struct lm93_data *data = lm93_update_device(dev);
1354        return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->temp_lim[nr].max));
1355}
1356
1357static ssize_t store_temp_max(struct device *dev, struct device_attribute *attr,
1358                              const char *buf, size_t count)
1359{
1360        int nr = (to_sensor_dev_attr(attr))->index;
1361        struct i2c_client *client = to_i2c_client(dev);
1362        struct lm93_data *data = i2c_get_clientdata(client);
1363        long val;
1364        int err;
1365
1366        err = kstrtol(buf, 10, &val);
1367        if (err)
1368                return err;
1369
1370        mutex_lock(&data->update_lock);
1371        data->temp_lim[nr].max = LM93_TEMP_TO_REG(val);
1372        lm93_write_byte(client, LM93_REG_TEMP_MAX(nr), data->temp_lim[nr].max);
1373        mutex_unlock(&data->update_lock);
1374        return count;
1375}
1376
1377static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
1378                          show_temp_max, store_temp_max, 0);
1379static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO,
1380                          show_temp_max, store_temp_max, 1);
1381static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO,
1382                          show_temp_max, store_temp_max, 2);
1383
1384static ssize_t show_temp_auto_base(struct device *dev,
1385                                struct device_attribute *attr, char *buf)
1386{
1387        int nr = (to_sensor_dev_attr(attr))->index;
1388        struct lm93_data *data = lm93_update_device(dev);
1389        return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->block10.base[nr]));
1390}
1391
1392static ssize_t store_temp_auto_base(struct device *dev,
1393                                        struct device_attribute *attr,
1394                                        const char *buf, size_t count)
1395{
1396        int nr = (to_sensor_dev_attr(attr))->index;
1397        struct i2c_client *client = to_i2c_client(dev);
1398        struct lm93_data *data = i2c_get_clientdata(client);
1399        long val;
1400        int err;
1401
1402        err = kstrtol(buf, 10, &val);
1403        if (err)
1404                return err;
1405
1406        mutex_lock(&data->update_lock);
1407        data->block10.base[nr] = LM93_TEMP_TO_REG(val);
1408        lm93_write_byte(client, LM93_REG_TEMP_BASE(nr), data->block10.base[nr]);
1409        mutex_unlock(&data->update_lock);
1410        return count;
1411}
1412
1413static SENSOR_DEVICE_ATTR(temp1_auto_base, S_IWUSR | S_IRUGO,
1414                          show_temp_auto_base, store_temp_auto_base, 0);
1415static SENSOR_DEVICE_ATTR(temp2_auto_base, S_IWUSR | S_IRUGO,
1416                          show_temp_auto_base, store_temp_auto_base, 1);
1417static SENSOR_DEVICE_ATTR(temp3_auto_base, S_IWUSR | S_IRUGO,
1418                          show_temp_auto_base, store_temp_auto_base, 2);
1419
1420static ssize_t show_temp_auto_boost(struct device *dev,
1421                                    struct device_attribute *attr, char *buf)
1422{
1423        int nr = (to_sensor_dev_attr(attr))->index;
1424        struct lm93_data *data = lm93_update_device(dev);
1425        return sprintf(buf, "%d\n", LM93_TEMP_FROM_REG(data->boost[nr]));
1426}
1427
1428static ssize_t store_temp_auto_boost(struct device *dev,
1429                                     struct device_attribute *attr,
1430                                     const char *buf, size_t count)
1431{
1432        int nr = (to_sensor_dev_attr(attr))->index;
1433        struct i2c_client *client = to_i2c_client(dev);
1434        struct lm93_data *data = i2c_get_clientdata(client);
1435        long val;
1436        int err;
1437
1438        err = kstrtol(buf, 10, &val);
1439        if (err)
1440                return err;
1441
1442        mutex_lock(&data->update_lock);
1443        data->boost[nr] = LM93_TEMP_TO_REG(val);
1444        lm93_write_byte(client, LM93_REG_BOOST(nr), data->boost[nr]);
1445        mutex_unlock(&data->update_lock);
1446        return count;
1447}
1448
1449static SENSOR_DEVICE_ATTR(temp1_auto_boost, S_IWUSR | S_IRUGO,
1450                          show_temp_auto_boost, store_temp_auto_boost, 0);
1451static SENSOR_DEVICE_ATTR(temp2_auto_boost, S_IWUSR | S_IRUGO,
1452                          show_temp_auto_boost, store_temp_auto_boost, 1);
1453static SENSOR_DEVICE_ATTR(temp3_auto_boost, S_IWUSR | S_IRUGO,
1454                          show_temp_auto_boost, store_temp_auto_boost, 2);
1455
1456static ssize_t show_temp_auto_boost_hyst(struct device *dev,
1457                                         struct device_attribute *attr,
1458                                         char *buf)
1459{
1460        int nr = (to_sensor_dev_attr(attr))->index;
1461        struct lm93_data *data = lm93_update_device(dev);
1462        int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1463        return sprintf(buf, "%d\n",
1464                       LM93_AUTO_BOOST_HYST_FROM_REGS(data, nr, mode));
1465}
1466
1467static ssize_t store_temp_auto_boost_hyst(struct device *dev,
1468                                          struct device_attribute *attr,
1469                                          const char *buf, size_t count)
1470{
1471        int nr = (to_sensor_dev_attr(attr))->index;
1472        struct i2c_client *client = to_i2c_client(dev);
1473        struct lm93_data *data = i2c_get_clientdata(client);
1474        unsigned long val;
1475        int err;
1476
1477        err = kstrtoul(buf, 10, &val);
1478        if (err)
1479                return err;
1480
1481        mutex_lock(&data->update_lock);
1482        /* force 0.5C/bit mode */
1483        data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1484        data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1485        lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1486        data->boost_hyst[nr/2] = LM93_AUTO_BOOST_HYST_TO_REG(data, val, nr, 1);
1487        lm93_write_byte(client, LM93_REG_BOOST_HYST(nr),
1488                        data->boost_hyst[nr/2]);
1489        mutex_unlock(&data->update_lock);
1490        return count;
1491}
1492
1493static SENSOR_DEVICE_ATTR(temp1_auto_boost_hyst, S_IWUSR | S_IRUGO,
1494                          show_temp_auto_boost_hyst,
1495                          store_temp_auto_boost_hyst, 0);
1496static SENSOR_DEVICE_ATTR(temp2_auto_boost_hyst, S_IWUSR | S_IRUGO,
1497                          show_temp_auto_boost_hyst,
1498                          store_temp_auto_boost_hyst, 1);
1499static SENSOR_DEVICE_ATTR(temp3_auto_boost_hyst, S_IWUSR | S_IRUGO,
1500                          show_temp_auto_boost_hyst,
1501                          store_temp_auto_boost_hyst, 2);
1502
1503static ssize_t show_temp_auto_offset(struct device *dev,
1504                                struct device_attribute *attr, char *buf)
1505{
1506        struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
1507        int nr = s_attr->index;
1508        int ofs = s_attr->nr;
1509        struct lm93_data *data = lm93_update_device(dev);
1510        int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1511        return sprintf(buf, "%d\n",
1512               LM93_TEMP_AUTO_OFFSET_FROM_REG(data->block10.offset[ofs],
1513                                              nr, mode));
1514}
1515
1516static ssize_t store_temp_auto_offset(struct device *dev,
1517                                        struct device_attribute *attr,
1518                                        const char *buf, size_t count)
1519{
1520        struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr);
1521        int nr = s_attr->index;
1522        int ofs = s_attr->nr;
1523        struct i2c_client *client = to_i2c_client(dev);
1524        struct lm93_data *data = i2c_get_clientdata(client);
1525        unsigned long val;
1526        int err;
1527
1528        err = kstrtoul(buf, 10, &val);
1529        if (err)
1530                return err;
1531
1532        mutex_lock(&data->update_lock);
1533        /* force 0.5C/bit mode */
1534        data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1535        data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1536        lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1537        data->block10.offset[ofs] = LM93_TEMP_AUTO_OFFSET_TO_REG(
1538                        data->block10.offset[ofs], val, nr, 1);
1539        lm93_write_byte(client, LM93_REG_TEMP_OFFSET(ofs),
1540                        data->block10.offset[ofs]);
1541        mutex_unlock(&data->update_lock);
1542        return count;
1543}
1544
1545static SENSOR_DEVICE_ATTR_2(temp1_auto_offset1, S_IWUSR | S_IRUGO,
1546                          show_temp_auto_offset, store_temp_auto_offset, 0, 0);
1547static SENSOR_DEVICE_ATTR_2(temp1_auto_offset2, S_IWUSR | S_IRUGO,
1548                          show_temp_auto_offset, store_temp_auto_offset, 1, 0);
1549static SENSOR_DEVICE_ATTR_2(temp1_auto_offset3, S_IWUSR | S_IRUGO,
1550                          show_temp_auto_offset, store_temp_auto_offset, 2, 0);
1551static SENSOR_DEVICE_ATTR_2(temp1_auto_offset4, S_IWUSR | S_IRUGO,
1552                          show_temp_auto_offset, store_temp_auto_offset, 3, 0);
1553static SENSOR_DEVICE_ATTR_2(temp1_auto_offset5, S_IWUSR | S_IRUGO,
1554                          show_temp_auto_offset, store_temp_auto_offset, 4, 0);
1555static SENSOR_DEVICE_ATTR_2(temp1_auto_offset6, S_IWUSR | S_IRUGO,
1556                          show_temp_auto_offset, store_temp_auto_offset, 5, 0);
1557static SENSOR_DEVICE_ATTR_2(temp1_auto_offset7, S_IWUSR | S_IRUGO,
1558                          show_temp_auto_offset, store_temp_auto_offset, 6, 0);
1559static SENSOR_DEVICE_ATTR_2(temp1_auto_offset8, S_IWUSR | S_IRUGO,
1560                          show_temp_auto_offset, store_temp_auto_offset, 7, 0);
1561static SENSOR_DEVICE_ATTR_2(temp1_auto_offset9, S_IWUSR | S_IRUGO,
1562                          show_temp_auto_offset, store_temp_auto_offset, 8, 0);
1563static SENSOR_DEVICE_ATTR_2(temp1_auto_offset10, S_IWUSR | S_IRUGO,
1564                          show_temp_auto_offset, store_temp_auto_offset, 9, 0);
1565static SENSOR_DEVICE_ATTR_2(temp1_auto_offset11, S_IWUSR | S_IRUGO,
1566                          show_temp_auto_offset, store_temp_auto_offset, 10, 0);
1567static SENSOR_DEVICE_ATTR_2(temp1_auto_offset12, S_IWUSR | S_IRUGO,
1568                          show_temp_auto_offset, store_temp_auto_offset, 11, 0);
1569static SENSOR_DEVICE_ATTR_2(temp2_auto_offset1, S_IWUSR | S_IRUGO,
1570                          show_temp_auto_offset, store_temp_auto_offset, 0, 1);
1571static SENSOR_DEVICE_ATTR_2(temp2_auto_offset2, S_IWUSR | S_IRUGO,
1572                          show_temp_auto_offset, store_temp_auto_offset, 1, 1);
1573static SENSOR_DEVICE_ATTR_2(temp2_auto_offset3, S_IWUSR | S_IRUGO,
1574                          show_temp_auto_offset, store_temp_auto_offset, 2, 1);
1575static SENSOR_DEVICE_ATTR_2(temp2_auto_offset4, S_IWUSR | S_IRUGO,
1576                          show_temp_auto_offset, store_temp_auto_offset, 3, 1);
1577static SENSOR_DEVICE_ATTR_2(temp2_auto_offset5, S_IWUSR | S_IRUGO,
1578                          show_temp_auto_offset, store_temp_auto_offset, 4, 1);
1579static SENSOR_DEVICE_ATTR_2(temp2_auto_offset6, S_IWUSR | S_IRUGO,
1580                          show_temp_auto_offset, store_temp_auto_offset, 5, 1);
1581static SENSOR_DEVICE_ATTR_2(temp2_auto_offset7, S_IWUSR | S_IRUGO,
1582                          show_temp_auto_offset, store_temp_auto_offset, 6, 1);
1583static SENSOR_DEVICE_ATTR_2(temp2_auto_offset8, S_IWUSR | S_IRUGO,
1584                          show_temp_auto_offset, store_temp_auto_offset, 7, 1);
1585static SENSOR_DEVICE_ATTR_2(temp2_auto_offset9, S_IWUSR | S_IRUGO,
1586                          show_temp_auto_offset, store_temp_auto_offset, 8, 1);
1587static SENSOR_DEVICE_ATTR_2(temp2_auto_offset10, S_IWUSR | S_IRUGO,
1588                          show_temp_auto_offset, store_temp_auto_offset, 9, 1);
1589static SENSOR_DEVICE_ATTR_2(temp2_auto_offset11, S_IWUSR | S_IRUGO,
1590                          show_temp_auto_offset, store_temp_auto_offset, 10, 1);
1591static SENSOR_DEVICE_ATTR_2(temp2_auto_offset12, S_IWUSR | S_IRUGO,
1592                          show_temp_auto_offset, store_temp_auto_offset, 11, 1);
1593static SENSOR_DEVICE_ATTR_2(temp3_auto_offset1, S_IWUSR | S_IRUGO,
1594                          show_temp_auto_offset, store_temp_auto_offset, 0, 2);
1595static SENSOR_DEVICE_ATTR_2(temp3_auto_offset2, S_IWUSR | S_IRUGO,
1596                          show_temp_auto_offset, store_temp_auto_offset, 1, 2);
1597static SENSOR_DEVICE_ATTR_2(temp3_auto_offset3, S_IWUSR | S_IRUGO,
1598                          show_temp_auto_offset, store_temp_auto_offset, 2, 2);
1599static SENSOR_DEVICE_ATTR_2(temp3_auto_offset4, S_IWUSR | S_IRUGO,
1600                          show_temp_auto_offset, store_temp_auto_offset, 3, 2);
1601static SENSOR_DEVICE_ATTR_2(temp3_auto_offset5, S_IWUSR | S_IRUGO,
1602                          show_temp_auto_offset, store_temp_auto_offset, 4, 2);
1603static SENSOR_DEVICE_ATTR_2(temp3_auto_offset6, S_IWUSR | S_IRUGO,
1604                          show_temp_auto_offset, store_temp_auto_offset, 5, 2);
1605static SENSOR_DEVICE_ATTR_2(temp3_auto_offset7, S_IWUSR | S_IRUGO,
1606                          show_temp_auto_offset, store_temp_auto_offset, 6, 2);
1607static SENSOR_DEVICE_ATTR_2(temp3_auto_offset8, S_IWUSR | S_IRUGO,
1608                          show_temp_auto_offset, store_temp_auto_offset, 7, 2);
1609static SENSOR_DEVICE_ATTR_2(temp3_auto_offset9, S_IWUSR | S_IRUGO,
1610                          show_temp_auto_offset, store_temp_auto_offset, 8, 2);
1611static SENSOR_DEVICE_ATTR_2(temp3_auto_offset10, S_IWUSR | S_IRUGO,
1612                          show_temp_auto_offset, store_temp_auto_offset, 9, 2);
1613static SENSOR_DEVICE_ATTR_2(temp3_auto_offset11, S_IWUSR | S_IRUGO,
1614                          show_temp_auto_offset, store_temp_auto_offset, 10, 2);
1615static SENSOR_DEVICE_ATTR_2(temp3_auto_offset12, S_IWUSR | S_IRUGO,
1616                          show_temp_auto_offset, store_temp_auto_offset, 11, 2);
1617
1618static ssize_t show_temp_auto_pwm_min(struct device *dev,
1619                                struct device_attribute *attr, char *buf)
1620{
1621        int nr = (to_sensor_dev_attr(attr))->index;
1622        u8 reg, ctl4;
1623        struct lm93_data *data = lm93_update_device(dev);
1624        reg = data->auto_pwm_min_hyst[nr/2] >> 4 & 0x0f;
1625        ctl4 = data->block9[nr][LM93_PWM_CTL4];
1626        return sprintf(buf, "%d\n", LM93_PWM_FROM_REG(reg, (ctl4 & 0x07) ?
1627                                LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
1628}
1629
1630static ssize_t store_temp_auto_pwm_min(struct device *dev,
1631                                        struct device_attribute *attr,
1632                                        const char *buf, size_t count)
1633{
1634        int nr = (to_sensor_dev_attr(attr))->index;
1635        struct i2c_client *client = to_i2c_client(dev);
1636        struct lm93_data *data = i2c_get_clientdata(client);
1637        u8 reg, ctl4;
1638        unsigned long val;
1639        int err;
1640
1641        err = kstrtoul(buf, 10, &val);
1642        if (err)
1643                return err;
1644
1645        mutex_lock(&data->update_lock);
1646        reg = lm93_read_byte(client, LM93_REG_PWM_MIN_HYST(nr));
1647        ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
1648        reg = (reg & 0x0f) |
1649                LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
1650                                LM93_PWM_MAP_LO_FREQ :
1651                                LM93_PWM_MAP_HI_FREQ) << 4;
1652        data->auto_pwm_min_hyst[nr/2] = reg;
1653        lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
1654        mutex_unlock(&data->update_lock);
1655        return count;
1656}
1657
1658static SENSOR_DEVICE_ATTR(temp1_auto_pwm_min, S_IWUSR | S_IRUGO,
1659                          show_temp_auto_pwm_min,
1660                          store_temp_auto_pwm_min, 0);
1661static SENSOR_DEVICE_ATTR(temp2_auto_pwm_min, S_IWUSR | S_IRUGO,
1662                          show_temp_auto_pwm_min,
1663                          store_temp_auto_pwm_min, 1);
1664static SENSOR_DEVICE_ATTR(temp3_auto_pwm_min, S_IWUSR | S_IRUGO,
1665                          show_temp_auto_pwm_min,
1666                          store_temp_auto_pwm_min, 2);
1667
1668static ssize_t show_temp_auto_offset_hyst(struct device *dev,
1669                                struct device_attribute *attr, char *buf)
1670{
1671        int nr = (to_sensor_dev_attr(attr))->index;
1672        struct lm93_data *data = lm93_update_device(dev);
1673        int mode = LM93_TEMP_OFFSET_MODE_FROM_REG(data->sfc2, nr);
1674        return sprintf(buf, "%d\n", LM93_TEMP_OFFSET_FROM_REG(
1675                                        data->auto_pwm_min_hyst[nr / 2], mode));
1676}
1677
1678static ssize_t store_temp_auto_offset_hyst(struct device *dev,
1679                                                struct device_attribute *attr,
1680                                                const char *buf, size_t count)
1681{
1682        int nr = (to_sensor_dev_attr(attr))->index;
1683        struct i2c_client *client = to_i2c_client(dev);
1684        struct lm93_data *data = i2c_get_clientdata(client);
1685        u8 reg;
1686        unsigned long val;
1687        int err;
1688
1689        err = kstrtoul(buf, 10, &val);
1690        if (err)
1691                return err;
1692
1693        mutex_lock(&data->update_lock);
1694        /* force 0.5C/bit mode */
1695        data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1696        data->sfc2 |= ((nr < 2) ? 0x10 : 0x20);
1697        lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1698        reg = data->auto_pwm_min_hyst[nr/2];
1699        reg = (reg & 0xf0) | (LM93_TEMP_OFFSET_TO_REG(val, 1) & 0x0f);
1700        data->auto_pwm_min_hyst[nr/2] = reg;
1701        lm93_write_byte(client, LM93_REG_PWM_MIN_HYST(nr), reg);
1702        mutex_unlock(&data->update_lock);
1703        return count;
1704}
1705
1706static SENSOR_DEVICE_ATTR(temp1_auto_offset_hyst, S_IWUSR | S_IRUGO,
1707                          show_temp_auto_offset_hyst,
1708                          store_temp_auto_offset_hyst, 0);
1709static SENSOR_DEVICE_ATTR(temp2_auto_offset_hyst, S_IWUSR | S_IRUGO,
1710                          show_temp_auto_offset_hyst,
1711                          store_temp_auto_offset_hyst, 1);
1712static SENSOR_DEVICE_ATTR(temp3_auto_offset_hyst, S_IWUSR | S_IRUGO,
1713                          show_temp_auto_offset_hyst,
1714                          store_temp_auto_offset_hyst, 2);
1715
1716static ssize_t show_fan_input(struct device *dev,
1717                struct device_attribute *attr, char *buf)
1718{
1719        struct sensor_device_attribute *s_attr = to_sensor_dev_attr(attr);
1720        int nr = s_attr->index;
1721        struct lm93_data *data = lm93_update_device(dev);
1722
1723        return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block5[nr]));
1724}
1725
1726static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan_input, NULL, 0);
1727static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan_input, NULL, 1);
1728static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan_input, NULL, 2);
1729static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan_input, NULL, 3);
1730
1731static ssize_t show_fan_min(struct device *dev,
1732                              struct device_attribute *attr, char *buf)
1733{
1734        int nr = (to_sensor_dev_attr(attr))->index;
1735        struct lm93_data *data = lm93_update_device(dev);
1736
1737        return sprintf(buf, "%d\n", LM93_FAN_FROM_REG(data->block8[nr]));
1738}
1739
1740static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr,
1741                                const char *buf, size_t count)
1742{
1743        int nr = (to_sensor_dev_attr(attr))->index;
1744        struct i2c_client *client = to_i2c_client(dev);
1745        struct lm93_data *data = i2c_get_clientdata(client);
1746        unsigned long val;
1747        int err;
1748
1749        err = kstrtoul(buf, 10, &val);
1750        if (err)
1751                return err;
1752
1753        mutex_lock(&data->update_lock);
1754        data->block8[nr] = LM93_FAN_TO_REG(val);
1755        lm93_write_word(client, LM93_REG_FAN_MIN(nr), data->block8[nr]);
1756        mutex_unlock(&data->update_lock);
1757        return count;
1758}
1759
1760static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1761                          show_fan_min, store_fan_min, 0);
1762static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1763                          show_fan_min, store_fan_min, 1);
1764static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1765                          show_fan_min, store_fan_min, 2);
1766static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1767                          show_fan_min, store_fan_min, 3);
1768
1769/*
1770 * some tedious bit-twiddling here to deal with the register format:
1771 *
1772 *      data->sf_tach_to_pwm: (tach to pwm mapping bits)
1773 *
1774 *              bit |  7  |  6  |  5  |  4  |  3  |  2  |  1  |  0
1775 *                   T4:P2 T4:P1 T3:P2 T3:P1 T2:P2 T2:P1 T1:P2 T1:P1
1776 *
1777 *      data->sfc2: (enable bits)
1778 *
1779 *              bit |  3  |  2  |  1  |  0
1780 *                     T4    T3    T2    T1
1781 */
1782
1783static ssize_t show_fan_smart_tach(struct device *dev,
1784                                struct device_attribute *attr, char *buf)
1785{
1786        int nr = (to_sensor_dev_attr(attr))->index;
1787        struct lm93_data *data = lm93_update_device(dev);
1788        long rc = 0;
1789        int mapping;
1790
1791        /* extract the relevant mapping */
1792        mapping = (data->sf_tach_to_pwm >> (nr * 2)) & 0x03;
1793
1794        /* if there's a mapping and it's enabled */
1795        if (mapping && ((data->sfc2 >> nr) & 0x01))
1796                rc = mapping;
1797        return sprintf(buf, "%ld\n", rc);
1798}
1799
1800/*
1801 * helper function - must grab data->update_lock before calling
1802 * fan is 0-3, indicating fan1-fan4
1803 */
1804static void lm93_write_fan_smart_tach(struct i2c_client *client,
1805        struct lm93_data *data, int fan, long value)
1806{
1807        /* insert the new mapping and write it out */
1808        data->sf_tach_to_pwm = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
1809        data->sf_tach_to_pwm &= ~(0x3 << fan * 2);
1810        data->sf_tach_to_pwm |= value << fan * 2;
1811        lm93_write_byte(client, LM93_REG_SF_TACH_TO_PWM, data->sf_tach_to_pwm);
1812
1813        /* insert the enable bit and write it out */
1814        data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
1815        if (value)
1816                data->sfc2 |= 1 << fan;
1817        else
1818                data->sfc2 &= ~(1 << fan);
1819        lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
1820}
1821
1822static ssize_t store_fan_smart_tach(struct device *dev,
1823                                        struct device_attribute *attr,
1824                                        const char *buf, size_t count)
1825{
1826        int nr = (to_sensor_dev_attr(attr))->index;
1827        struct i2c_client *client = to_i2c_client(dev);
1828        struct lm93_data *data = i2c_get_clientdata(client);
1829        unsigned long val;
1830        int err;
1831
1832        err = kstrtoul(buf, 10, &val);
1833        if (err)
1834                return err;
1835
1836        mutex_lock(&data->update_lock);
1837        /* sanity test, ignore the write otherwise */
1838        if (val <= 2) {
1839                /* can't enable if pwm freq is 22.5KHz */
1840                if (val) {
1841                        u8 ctl4 = lm93_read_byte(client,
1842                                LM93_REG_PWM_CTL(val - 1, LM93_PWM_CTL4));
1843                        if ((ctl4 & 0x07) == 0)
1844                                val = 0;
1845                }
1846                lm93_write_fan_smart_tach(client, data, nr, val);
1847        }
1848        mutex_unlock(&data->update_lock);
1849        return count;
1850}
1851
1852static SENSOR_DEVICE_ATTR(fan1_smart_tach, S_IWUSR | S_IRUGO,
1853                          show_fan_smart_tach, store_fan_smart_tach, 0);
1854static SENSOR_DEVICE_ATTR(fan2_smart_tach, S_IWUSR | S_IRUGO,
1855                          show_fan_smart_tach, store_fan_smart_tach, 1);
1856static SENSOR_DEVICE_ATTR(fan3_smart_tach, S_IWUSR | S_IRUGO,
1857                          show_fan_smart_tach, store_fan_smart_tach, 2);
1858static SENSOR_DEVICE_ATTR(fan4_smart_tach, S_IWUSR | S_IRUGO,
1859                          show_fan_smart_tach, store_fan_smart_tach, 3);
1860
1861static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
1862                        char *buf)
1863{
1864        int nr = (to_sensor_dev_attr(attr))->index;
1865        struct lm93_data *data = lm93_update_device(dev);
1866        u8 ctl2, ctl4;
1867        long rc;
1868
1869        ctl2 = data->block9[nr][LM93_PWM_CTL2];
1870        ctl4 = data->block9[nr][LM93_PWM_CTL4];
1871        if (ctl2 & 0x01) /* show user commanded value if enabled */
1872                rc = data->pwm_override[nr];
1873        else /* show present h/w value if manual pwm disabled */
1874                rc = LM93_PWM_FROM_REG(ctl2 >> 4, (ctl4 & 0x07) ?
1875                        LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ);
1876        return sprintf(buf, "%ld\n", rc);
1877}
1878
1879static ssize_t store_pwm(struct device *dev, struct device_attribute *attr,
1880                                const char *buf, size_t count)
1881{
1882        int nr = (to_sensor_dev_attr(attr))->index;
1883        struct i2c_client *client = to_i2c_client(dev);
1884        struct lm93_data *data = i2c_get_clientdata(client);
1885        u8 ctl2, ctl4;
1886        unsigned long val;
1887        int err;
1888
1889        err = kstrtoul(buf, 10, &val);
1890        if (err)
1891                return err;
1892
1893        mutex_lock(&data->update_lock);
1894        ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2));
1895        ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
1896        ctl2 = (ctl2 & 0x0f) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
1897                        LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ) << 4;
1898        /* save user commanded value */
1899        data->pwm_override[nr] = LM93_PWM_FROM_REG(ctl2 >> 4,
1900                        (ctl4 & 0x07) ?  LM93_PWM_MAP_LO_FREQ :
1901                        LM93_PWM_MAP_HI_FREQ);
1902        lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2);
1903        mutex_unlock(&data->update_lock);
1904        return count;
1905}
1906
1907static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1908static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1909
1910static ssize_t show_pwm_enable(struct device *dev,
1911                                struct device_attribute *attr, char *buf)
1912{
1913        int nr = (to_sensor_dev_attr(attr))->index;
1914        struct lm93_data *data = lm93_update_device(dev);
1915        u8 ctl2;
1916        long rc;
1917
1918        ctl2 = data->block9[nr][LM93_PWM_CTL2];
1919        if (ctl2 & 0x01) /* manual override enabled ? */
1920                rc = ((ctl2 & 0xF0) == 0xF0) ? 0 : 1;
1921        else
1922                rc = 2;
1923        return sprintf(buf, "%ld\n", rc);
1924}
1925
1926static ssize_t store_pwm_enable(struct device *dev,
1927                                struct device_attribute *attr,
1928                                const char *buf, size_t count)
1929{
1930        int nr = (to_sensor_dev_attr(attr))->index;
1931        struct i2c_client *client = to_i2c_client(dev);
1932        struct lm93_data *data = i2c_get_clientdata(client);
1933        u8 ctl2;
1934        unsigned long val;
1935        int err;
1936
1937        err = kstrtoul(buf, 10, &val);
1938        if (err)
1939                return err;
1940
1941        mutex_lock(&data->update_lock);
1942        ctl2 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2));
1943
1944        switch (val) {
1945        case 0:
1946                ctl2 |= 0xF1; /* enable manual override, set PWM to max */
1947                break;
1948        case 1:
1949                ctl2 |= 0x01; /* enable manual override */
1950                break;
1951        case 2:
1952                ctl2 &= ~0x01; /* disable manual override */
1953                break;
1954        default:
1955                mutex_unlock(&data->update_lock);
1956                return -EINVAL;
1957        }
1958
1959        lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL2), ctl2);
1960        mutex_unlock(&data->update_lock);
1961        return count;
1962}
1963
1964static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1965                                show_pwm_enable, store_pwm_enable, 0);
1966static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1967                                show_pwm_enable, store_pwm_enable, 1);
1968
1969static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
1970                                char *buf)
1971{
1972        int nr = (to_sensor_dev_attr(attr))->index;
1973        struct lm93_data *data = lm93_update_device(dev);
1974        u8 ctl4;
1975
1976        ctl4 = data->block9[nr][LM93_PWM_CTL4];
1977        return sprintf(buf, "%d\n", LM93_PWM_FREQ_FROM_REG(ctl4));
1978}
1979
1980/*
1981 * helper function - must grab data->update_lock before calling
1982 * pwm is 0-1, indicating pwm1-pwm2
1983 * this disables smart tach for all tach channels bound to the given pwm
1984 */
1985static void lm93_disable_fan_smart_tach(struct i2c_client *client,
1986        struct lm93_data *data, int pwm)
1987{
1988        int mapping = lm93_read_byte(client, LM93_REG_SF_TACH_TO_PWM);
1989        int mask;
1990
1991        /* collapse the mapping into a mask of enable bits */
1992        mapping = (mapping >> pwm) & 0x55;
1993        mask = mapping & 0x01;
1994        mask |= (mapping & 0x04) >> 1;
1995        mask |= (mapping & 0x10) >> 2;
1996        mask |= (mapping & 0x40) >> 3;
1997
1998        /* disable smart tach according to the mask */
1999        data->sfc2 = lm93_read_byte(client, LM93_REG_SFC2);
2000        data->sfc2 &= ~mask;
2001        lm93_write_byte(client, LM93_REG_SFC2, data->sfc2);
2002}
2003
2004static ssize_t store_pwm_freq(struct device *dev,
2005                                struct device_attribute *attr,
2006                                const char *buf, size_t count)
2007{
2008        int nr = (to_sensor_dev_attr(attr))->index;
2009        struct i2c_client *client = to_i2c_client(dev);
2010        struct lm93_data *data = i2c_get_clientdata(client);
2011        u8 ctl4;
2012        unsigned long val;
2013        int err;
2014
2015        err = kstrtoul(buf, 10, &val);
2016        if (err)
2017                return err;
2018
2019        mutex_lock(&data->update_lock);
2020        ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
2021        ctl4 = (ctl4 & 0xf8) | LM93_PWM_FREQ_TO_REG(val);
2022        data->block9[nr][LM93_PWM_CTL4] = ctl4;
2023        /* ctl4 == 0 -> 22.5KHz -> disable smart tach */
2024        if (!ctl4)
2025                lm93_disable_fan_smart_tach(client, data, nr);
2026        lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4), ctl4);
2027        mutex_unlock(&data->update_lock);
2028        return count;
2029}
2030
2031static SENSOR_DEVICE_ATTR(pwm1_freq, S_IWUSR | S_IRUGO,
2032                          show_pwm_freq, store_pwm_freq, 0);
2033static SENSOR_DEVICE_ATTR(pwm2_freq, S_IWUSR | S_IRUGO,
2034                          show_pwm_freq, store_pwm_freq, 1);
2035
2036static ssize_t show_pwm_auto_channels(struct device *dev,
2037                                struct device_attribute *attr, char *buf)
2038{
2039        int nr = (to_sensor_dev_attr(attr))->index;
2040        struct lm93_data *data = lm93_update_device(dev);
2041        return sprintf(buf, "%d\n", data->block9[nr][LM93_PWM_CTL1]);
2042}
2043
2044static ssize_t store_pwm_auto_channels(struct device *dev,
2045                                        struct device_attribute *attr,
2046                                        const char *buf, size_t count)
2047{
2048        int nr = (to_sensor_dev_attr(attr))->index;
2049        struct i2c_client *client = to_i2c_client(dev);
2050        struct lm93_data *data = i2c_get_clientdata(client);
2051        unsigned long val;
2052        int err;
2053
2054        err = kstrtoul(buf, 10, &val);
2055        if (err)
2056                return err;
2057
2058        mutex_lock(&data->update_lock);
2059        data->block9[nr][LM93_PWM_CTL1] = clamp_val(val, 0, 255);
2060        lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL1),
2061                                data->block9[nr][LM93_PWM_CTL1]);
2062        mutex_unlock(&data->update_lock);
2063        return count;
2064}
2065
2066static SENSOR_DEVICE_ATTR(pwm1_auto_channels, S_IWUSR | S_IRUGO,
2067                          show_pwm_auto_channels, store_pwm_auto_channels, 0);
2068static SENSOR_DEVICE_ATTR(pwm2_auto_channels, S_IWUSR | S_IRUGO,
2069                          show_pwm_auto_channels, store_pwm_auto_channels, 1);
2070
2071static ssize_t show_pwm_auto_spinup_min(struct device *dev,
2072                                struct device_attribute *attr, char *buf)
2073{
2074        int nr = (to_sensor_dev_attr(attr))->index;
2075        struct lm93_data *data = lm93_update_device(dev);
2076        u8 ctl3, ctl4;
2077
2078        ctl3 = data->block9[nr][LM93_PWM_CTL3];
2079        ctl4 = data->block9[nr][LM93_PWM_CTL4];
2080        return sprintf(buf, "%d\n",
2081                       LM93_PWM_FROM_REG(ctl3 & 0x0f, (ctl4 & 0x07) ?
2082                        LM93_PWM_MAP_LO_FREQ : LM93_PWM_MAP_HI_FREQ));
2083}
2084
2085static ssize_t store_pwm_auto_spinup_min(struct device *dev,
2086                                                struct device_attribute *attr,
2087                                                const char *buf, size_t count)
2088{
2089        int nr = (to_sensor_dev_attr(attr))->index;
2090        struct i2c_client *client = to_i2c_client(dev);
2091        struct lm93_data *data = i2c_get_clientdata(client);
2092        u8 ctl3, ctl4;
2093        unsigned long val;
2094        int err;
2095
2096        err = kstrtoul(buf, 10, &val);
2097        if (err)
2098                return err;
2099
2100        mutex_lock(&data->update_lock);
2101        ctl3 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
2102        ctl4 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL4));
2103        ctl3 = (ctl3 & 0xf0) | LM93_PWM_TO_REG(val, (ctl4 & 0x07) ?
2104                        LM93_PWM_MAP_LO_FREQ :
2105                        LM93_PWM_MAP_HI_FREQ);
2106        data->block9[nr][LM93_PWM_CTL3] = ctl3;
2107        lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
2108        mutex_unlock(&data->update_lock);
2109        return count;
2110}
2111
2112static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_min, S_IWUSR | S_IRUGO,
2113                          show_pwm_auto_spinup_min,
2114                          store_pwm_auto_spinup_min, 0);
2115static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_min, S_IWUSR | S_IRUGO,
2116                          show_pwm_auto_spinup_min,
2117                          store_pwm_auto_spinup_min, 1);
2118
2119static ssize_t show_pwm_auto_spinup_time(struct device *dev,
2120                                struct device_attribute *attr, char *buf)
2121{
2122        int nr = (to_sensor_dev_attr(attr))->index;
2123        struct lm93_data *data = lm93_update_device(dev);
2124        return sprintf(buf, "%d\n", LM93_SPINUP_TIME_FROM_REG(
2125                                data->block9[nr][LM93_PWM_CTL3]));
2126}
2127
2128static ssize_t store_pwm_auto_spinup_time(struct device *dev,
2129                                                struct device_attribute *attr,
2130                                                const char *buf, size_t count)
2131{
2132        int nr = (to_sensor_dev_attr(attr))->index;
2133        struct i2c_client *client = to_i2c_client(dev);
2134        struct lm93_data *data = i2c_get_clientdata(client);
2135        u8 ctl3;
2136        unsigned long val;
2137        int err;
2138
2139        err = kstrtoul(buf, 10, &val);
2140        if (err)
2141                return err;
2142
2143        mutex_lock(&data->update_lock);
2144        ctl3 = lm93_read_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3));
2145        ctl3 = (ctl3 & 0x1f) | (LM93_SPINUP_TIME_TO_REG(val) << 5 & 0xe0);
2146        data->block9[nr][LM93_PWM_CTL3] = ctl3;
2147        lm93_write_byte(client, LM93_REG_PWM_CTL(nr, LM93_PWM_CTL3), ctl3);
2148        mutex_unlock(&data->update_lock);
2149        return count;
2150}
2151
2152static SENSOR_DEVICE_ATTR(pwm1_auto_spinup_time, S_IWUSR | S_IRUGO,
2153                          show_pwm_auto_spinup_time,
2154                          store_pwm_auto_spinup_time, 0);
2155static SENSOR_DEVICE_ATTR(pwm2_auto_spinup_time, S_IWUSR | S_IRUGO,
2156                          show_pwm_auto_spinup_time,
2157                          store_pwm_auto_spinup_time, 1);
2158
2159static ssize_t show_pwm_auto_prochot_ramp(struct device *dev,
2160                                struct device_attribute *attr, char *buf)
2161{
2162        struct lm93_data *data = lm93_update_device(dev);
2163        return sprintf(buf, "%d\n",
2164                       LM93_RAMP_FROM_REG(data->pwm_ramp_ctl >> 4 & 0x0f));
2165}
2166
2167static ssize_t store_pwm_auto_prochot_ramp(struct device *dev,
2168                                                struct device_attribute *attr,
2169                                                const char *buf, size_t count)
2170{
2171        struct i2c_client *client = to_i2c_client(dev);
2172        struct lm93_data *data = i2c_get_clientdata(client);
2173        u8 ramp;
2174        unsigned long val;
2175        int err;
2176
2177        err = kstrtoul(buf, 10, &val);
2178        if (err)
2179                return err;
2180
2181        mutex_lock(&data->update_lock);
2182        ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
2183        ramp = (ramp & 0x0f) | (LM93_RAMP_TO_REG(val) << 4 & 0xf0);
2184        lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
2185        mutex_unlock(&data->update_lock);
2186        return count;
2187}
2188
2189static DEVICE_ATTR(pwm_auto_prochot_ramp, S_IRUGO | S_IWUSR,
2190                        show_pwm_auto_prochot_ramp,
2191                        store_pwm_auto_prochot_ramp);
2192
2193static ssize_t show_pwm_auto_vrdhot_ramp(struct device *dev,
2194                                struct device_attribute *attr, char *buf)
2195{
2196        struct lm93_data *data = lm93_update_device(dev);
2197        return sprintf(buf, "%d\n",
2198                       LM93_RAMP_FROM_REG(data->pwm_ramp_ctl & 0x0f));
2199}
2200
2201static ssize_t store_pwm_auto_vrdhot_ramp(struct device *dev,
2202                                                struct device_attribute *attr,
2203                                                const char *buf, size_t count)
2204{
2205        struct i2c_client *client = to_i2c_client(dev);
2206        struct lm93_data *data = i2c_get_clientdata(client);
2207        u8 ramp;
2208        unsigned long val;
2209        int err;
2210
2211        err = kstrtoul(buf, 10, &val);
2212        if (err)
2213                return err;
2214
2215        mutex_lock(&data->update_lock);
2216        ramp = lm93_read_byte(client, LM93_REG_PWM_RAMP_CTL);
2217        ramp = (ramp & 0xf0) | (LM93_RAMP_TO_REG(val) & 0x0f);
2218        lm93_write_byte(client, LM93_REG_PWM_RAMP_CTL, ramp);
2219        mutex_unlock(&data->update_lock);
2220        return 0;
2221}
2222
2223static DEVICE_ATTR(pwm_auto_vrdhot_ramp, S_IRUGO | S_IWUSR,
2224                        show_pwm_auto_vrdhot_ramp,
2225                        store_pwm_auto_vrdhot_ramp);
2226
2227static ssize_t show_vid(struct device *dev, struct device_attribute *attr,
2228                        char *buf)
2229{
2230        int nr = (to_sensor_dev_attr(attr))->index;
2231        struct lm93_data *data = lm93_update_device(dev);
2232        return sprintf(buf, "%d\n", LM93_VID_FROM_REG(data->vid[nr]));
2233}
2234
2235static SENSOR_DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL, 0);
2236static SENSOR_DEVICE_ATTR(cpu1_vid, S_IRUGO, show_vid, NULL, 1);
2237
2238static ssize_t show_prochot(struct device *dev, struct device_attribute *attr,
2239                                char *buf)
2240{
2241        int nr = (to_sensor_dev_attr(attr))->index;
2242        struct lm93_data *data = lm93_update_device(dev);
2243        return sprintf(buf, "%d\n", data->block4[nr].cur);
2244}
2245
2246static SENSOR_DEVICE_ATTR(prochot1, S_IRUGO, show_prochot, NULL, 0);
2247static SENSOR_DEVICE_ATTR(prochot2, S_IRUGO, show_prochot, NULL, 1);
2248
2249static ssize_t show_prochot_avg(struct device *dev,
2250                                struct device_attribute *attr, char *buf)
2251{
2252        int nr = (to_sensor_dev_attr(attr))->index;
2253        struct lm93_data *data = lm93_update_device(dev);
2254        return sprintf(buf, "%d\n", data->block4[nr].avg);
2255}
2256
2257static SENSOR_DEVICE_ATTR(prochot1_avg, S_IRUGO, show_prochot_avg, NULL, 0);
2258static SENSOR_DEVICE_ATTR(prochot2_avg, S_IRUGO, show_prochot_avg, NULL, 1);
2259
2260static ssize_t show_prochot_max(struct device *dev,
2261                                struct device_attribute *attr, char *buf)
2262{
2263        int nr = (to_sensor_dev_attr(attr))->index;
2264        struct lm93_data *data = lm93_update_device(dev);
2265        return sprintf(buf, "%d\n", data->prochot_max[nr]);
2266}
2267
2268static ssize_t store_prochot_max(struct device *dev,
2269                                        struct device_attribute *attr,
2270                                        const char *buf, size_t count)
2271{
2272        int nr = (to_sensor_dev_attr(attr))->index;
2273        struct i2c_client *client = to_i2c_client(dev);
2274        struct lm93_data *data = i2c_get_clientdata(client);
2275        unsigned long val;
2276        int err;
2277
2278        err = kstrtoul(buf, 10, &val);
2279        if (err)
2280                return err;
2281
2282        mutex_lock(&data->update_lock);
2283        data->prochot_max[nr] = LM93_PROCHOT_TO_REG(val);
2284        lm93_write_byte(client, LM93_REG_PROCHOT_MAX(nr),
2285                        data->prochot_max[nr]);
2286        mutex_unlock(&data->update_lock);
2287        return count;
2288}
2289
2290static SENSOR_DEVICE_ATTR(prochot1_max, S_IWUSR | S_IRUGO,
2291                          show_prochot_max, store_prochot_max, 0);
2292static SENSOR_DEVICE_ATTR(prochot2_max, S_IWUSR | S_IRUGO,
2293                          show_prochot_max, store_prochot_max, 1);
2294
2295static const u8 prochot_override_mask[] = { 0x80, 0x40 };
2296
2297static ssize_t show_prochot_override(struct device *dev,
2298                                struct device_attribute *attr, char *buf)
2299{
2300        int nr = (to_sensor_dev_attr(attr))->index;
2301        struct lm93_data *data = lm93_update_device(dev);
2302        return sprintf(buf, "%d\n",
2303                (data->prochot_override & prochot_override_mask[nr]) ? 1 : 0);
2304}
2305
2306static ssize_t store_prochot_override(struct device *dev,
2307                                        struct device_attribute *attr,
2308                                        const char *buf, size_t count)
2309{
2310        int nr = (to_sensor_dev_attr(attr))->index;
2311        struct i2c_client *client = to_i2c_client(dev);
2312        struct lm93_data *data = i2c_get_clientdata(client);
2313        unsigned long val;
2314        int err;
2315
2316        err = kstrtoul(buf, 10, &val);
2317        if (err)
2318                return err;
2319
2320        mutex_lock(&data->update_lock);
2321        if (val)
2322                data->prochot_override |= prochot_override_mask[nr];
2323        else
2324                data->prochot_override &= (~prochot_override_mask[nr]);
2325        lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
2326                        data->prochot_override);
2327        mutex_unlock(&data->update_lock);
2328        return count;
2329}
2330
2331static SENSOR_DEVICE_ATTR(prochot1_override, S_IWUSR | S_IRUGO,
2332                          show_prochot_override, store_prochot_override, 0);
2333static SENSOR_DEVICE_ATTR(prochot2_override, S_IWUSR | S_IRUGO,
2334                          show_prochot_override, store_prochot_override, 1);
2335
2336static ssize_t show_prochot_interval(struct device *dev,
2337                                struct device_attribute *attr, char *buf)
2338{
2339        int nr = (to_sensor_dev_attr(attr))->index;
2340        struct lm93_data *data = lm93_update_device(dev);
2341        u8 tmp;
2342        if (nr == 1)
2343                tmp = (data->prochot_interval & 0xf0) >> 4;
2344        else
2345                tmp = data->prochot_interval & 0x0f;
2346        return sprintf(buf, "%d\n", LM93_INTERVAL_FROM_REG(tmp));
2347}
2348
2349static ssize_t store_prochot_interval(struct device *dev,
2350                                        struct device_attribute *attr,
2351                                        const char *buf, size_t count)
2352{
2353        int nr = (to_sensor_dev_attr(attr))->index;
2354        struct i2c_client *client = to_i2c_client(dev);
2355        struct lm93_data *data = i2c_get_clientdata(client);
2356        u8 tmp;
2357        unsigned long val;
2358        int err;
2359
2360        err = kstrtoul(buf, 10, &val);
2361        if (err)
2362                return err;
2363
2364        mutex_lock(&data->update_lock);
2365        tmp = lm93_read_byte(client, LM93_REG_PROCHOT_INTERVAL);
2366        if (nr == 1)
2367                tmp = (tmp & 0x0f) | (LM93_INTERVAL_TO_REG(val) << 4);
2368        else
2369                tmp = (tmp & 0xf0) | LM93_INTERVAL_TO_REG(val);
2370        data->prochot_interval = tmp;
2371        lm93_write_byte(client, LM93_REG_PROCHOT_INTERVAL, tmp);
2372        mutex_unlock(&data->update_lock);
2373        return count;
2374}
2375
2376static SENSOR_DEVICE_ATTR(prochot1_interval, S_IWUSR | S_IRUGO,
2377                          show_prochot_interval, store_prochot_interval, 0);
2378static SENSOR_DEVICE_ATTR(prochot2_interval, S_IWUSR | S_IRUGO,
2379                          show_prochot_interval, store_prochot_interval, 1);
2380
2381static ssize_t show_prochot_override_duty_cycle(struct device *dev,
2382                                                struct device_attribute *attr,
2383                                                char *buf)
2384{
2385        struct lm93_data *data = lm93_update_device(dev);
2386        return sprintf(buf, "%d\n", data->prochot_override & 0x0f);
2387}
2388
2389static ssize_t store_prochot_override_duty_cycle(struct device *dev,
2390                                                struct device_attribute *attr,
2391                                                const char *buf, size_t count)
2392{
2393        struct i2c_client *client = to_i2c_client(dev);
2394        struct lm93_data *data = i2c_get_clientdata(client);
2395        unsigned long val;
2396        int err;
2397
2398        err = kstrtoul(buf, 10, &val);
2399        if (err)
2400                return err;
2401
2402        mutex_lock(&data->update_lock);
2403        data->prochot_override = (data->prochot_override & 0xf0) |
2404                                        clamp_val(val, 0, 15);
2405        lm93_write_byte(client, LM93_REG_PROCHOT_OVERRIDE,
2406                        data->prochot_override);
2407        mutex_unlock(&data->update_lock);
2408        return count;
2409}
2410
2411static DEVICE_ATTR(prochot_override_duty_cycle, S_IRUGO | S_IWUSR,
2412                        show_prochot_override_duty_cycle,
2413                        store_prochot_override_duty_cycle);
2414
2415static ssize_t show_prochot_short(struct device *dev,
2416                                struct device_attribute *attr, char *buf)
2417{
2418        struct lm93_data *data = lm93_update_device(dev);
2419        return sprintf(buf, "%d\n", (data->config & 0x10) ? 1 : 0);
2420}
2421
2422static ssize_t store_prochot_short(struct device *dev,
2423                                        struct device_attribute *attr,
2424                                        const char *buf, size_t count)
2425{
2426        struct i2c_client *client = to_i2c_client(dev);
2427        struct lm93_data *data = i2c_get_clientdata(client);
2428        unsigned long val;
2429        int err;
2430
2431        err = kstrtoul(buf, 10, &val);
2432        if (err)
2433                return err;
2434
2435        mutex_lock(&data->update_lock);
2436        if (val)
2437                data->config |= 0x10;
2438        else
2439                data->config &= ~0x10;
2440        lm93_write_byte(client, LM93_REG_CONFIG, data->config);
2441        mutex_unlock(&data->update_lock);
2442        return count;
2443}
2444
2445static DEVICE_ATTR(prochot_short, S_IRUGO | S_IWUSR,
2446                   show_prochot_short, store_prochot_short);
2447
2448static ssize_t show_vrdhot(struct device *dev, struct device_attribute *attr,
2449                                char *buf)
2450{
2451        int nr = (to_sensor_dev_attr(attr))->index;
2452        struct lm93_data *data = lm93_update_device(dev);
2453        return sprintf(buf, "%d\n",
2454                       data->block1.host_status_1 & (1 << (nr + 4)) ? 1 : 0);
2455}
2456
2457static SENSOR_DEVICE_ATTR(vrdhot1, S_IRUGO, show_vrdhot, NULL, 0);
2458static SENSOR_DEVICE_ATTR(vrdhot2, S_IRUGO, show_vrdhot, NULL, 1);
2459
2460static ssize_t show_gpio(struct device *dev, struct device_attribute *attr,
2461                                char *buf)
2462{
2463        struct lm93_data *data = lm93_update_device(dev);
2464        return sprintf(buf, "%d\n", LM93_GPI_FROM_REG(data->gpi));
2465}
2466
2467static DEVICE_ATTR(gpio, S_IRUGO, show_gpio, NULL);
2468
2469static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
2470                                char *buf)
2471{
2472        struct lm93_data *data = lm93_update_device(dev);
2473        return sprintf(buf, "%d\n", LM93_ALARMS_FROM_REG(data->block1));
2474}
2475
2476static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
2477
2478static struct attribute *lm93_attrs[] = {
2479        &sensor_dev_attr_in1_input.dev_attr.attr,
2480        &sensor_dev_attr_in2_input.dev_attr.attr,
2481        &sensor_dev_attr_in3_input.dev_attr.attr,
2482        &sensor_dev_attr_in4_input.dev_attr.attr,
2483        &sensor_dev_attr_in5_input.dev_attr.attr,
2484        &sensor_dev_attr_in6_input.dev_attr.attr,
2485        &sensor_dev_attr_in7_input.dev_attr.attr,
2486        &sensor_dev_attr_in8_input.dev_attr.attr,
2487        &sensor_dev_attr_in9_input.dev_attr.attr,
2488        &sensor_dev_attr_in10_input.dev_attr.attr,
2489        &sensor_dev_attr_in11_input.dev_attr.attr,
2490        &sensor_dev_attr_in12_input.dev_attr.attr,
2491        &sensor_dev_attr_in13_input.dev_attr.attr,
2492        &sensor_dev_attr_in14_input.dev_attr.attr,
2493        &sensor_dev_attr_in15_input.dev_attr.attr,
2494        &sensor_dev_attr_in16_input.dev_attr.attr,
2495        &sensor_dev_attr_in1_min.dev_attr.attr,
2496        &sensor_dev_attr_in2_min.dev_attr.attr,
2497        &sensor_dev_attr_in3_min.dev_attr.attr,
2498        &sensor_dev_attr_in4_min.dev_attr.attr,
2499        &sensor_dev_attr_in5_min.dev_attr.attr,
2500        &sensor_dev_attr_in6_min.dev_attr.attr,
2501        &sensor_dev_attr_in7_min.dev_attr.attr,
2502        &sensor_dev_attr_in8_min.dev_attr.attr,
2503        &sensor_dev_attr_in9_min.dev_attr.attr,
2504        &sensor_dev_attr_in10_min.dev_attr.attr,
2505        &sensor_dev_attr_in11_min.dev_attr.attr,
2506        &sensor_dev_attr_in12_min.dev_attr.attr,
2507        &sensor_dev_attr_in13_min.dev_attr.attr,
2508        &sensor_dev_attr_in14_min.dev_attr.attr,
2509        &sensor_dev_attr_in15_min.dev_attr.attr,
2510        &sensor_dev_attr_in16_min.dev_attr.attr,
2511        &sensor_dev_attr_in1_max.dev_attr.attr,
2512        &sensor_dev_attr_in2_max.dev_attr.attr,
2513        &sensor_dev_attr_in3_max.dev_attr.attr,
2514        &sensor_dev_attr_in4_max.dev_attr.attr,
2515        &sensor_dev_attr_in5_max.dev_attr.attr,
2516        &sensor_dev_attr_in6_max.dev_attr.attr,
2517        &sensor_dev_attr_in7_max.dev_attr.attr,
2518        &sensor_dev_attr_in8_max.dev_attr.attr,
2519        &sensor_dev_attr_in9_max.dev_attr.attr,
2520        &sensor_dev_attr_in10_max.dev_attr.attr,
2521        &sensor_dev_attr_in11_max.dev_attr.attr,
2522        &sensor_dev_attr_in12_max.dev_attr.attr,
2523        &sensor_dev_attr_in13_max.dev_attr.attr,
2524        &sensor_dev_attr_in14_max.dev_attr.attr,
2525        &sensor_dev_attr_in15_max.dev_attr.attr,
2526        &sensor_dev_attr_in16_max.dev_attr.attr,
2527        &sensor_dev_attr_temp1_input.dev_attr.attr,
2528        &sensor_dev_attr_temp2_input.dev_attr.attr,
2529        &sensor_dev_attr_temp3_input.dev_attr.attr,
2530        &sensor_dev_attr_temp1_min.dev_attr.attr,
2531        &sensor_dev_attr_temp2_min.dev_attr.attr,
2532        &sensor_dev_attr_temp3_min.dev_attr.attr,
2533        &sensor_dev_attr_temp1_max.dev_attr.attr,
2534        &sensor_dev_attr_temp2_max.dev_attr.attr,
2535        &sensor_dev_attr_temp3_max.dev_attr.attr,
2536        &sensor_dev_attr_temp1_auto_base.dev_attr.attr,
2537        &sensor_dev_attr_temp2_auto_base.dev_attr.attr,
2538        &sensor_dev_attr_temp3_auto_base.dev_attr.attr,
2539        &sensor_dev_attr_temp1_auto_boost.dev_attr.attr,
2540        &sensor_dev_attr_temp2_auto_boost.dev_attr.attr,
2541        &sensor_dev_attr_temp3_auto_boost.dev_attr.attr,
2542        &sensor_dev_attr_temp1_auto_boost_hyst.dev_attr.attr,
2543        &sensor_dev_attr_temp2_auto_boost_hyst.dev_attr.attr,
2544        &sensor_dev_attr_temp3_auto_boost_hyst.dev_attr.attr,
2545        &sensor_dev_attr_temp1_auto_offset1.dev_attr.attr,
2546        &sensor_dev_attr_temp1_auto_offset2.dev_attr.attr,
2547        &sensor_dev_attr_temp1_auto_offset3.dev_attr.attr,
2548        &sensor_dev_attr_temp1_auto_offset4.dev_attr.attr,
2549        &sensor_dev_attr_temp1_auto_offset5.dev_attr.attr,
2550        &sensor_dev_attr_temp1_auto_offset6.dev_attr.attr,
2551        &sensor_dev_attr_temp1_auto_offset7.dev_attr.attr,
2552        &sensor_dev_attr_temp1_auto_offset8.dev_attr.attr,
2553        &sensor_dev_attr_temp1_auto_offset9.dev_attr.attr,
2554        &sensor_dev_attr_temp1_auto_offset10.dev_attr.attr,
2555        &sensor_dev_attr_temp1_auto_offset11.dev_attr.attr,
2556        &sensor_dev_attr_temp1_auto_offset12.dev_attr.attr,
2557        &sensor_dev_attr_temp2_auto_offset1.dev_attr.attr,
2558        &sensor_dev_attr_temp2_auto_offset2.dev_attr.attr,
2559        &sensor_dev_attr_temp2_auto_offset3.dev_attr.attr,
2560        &sensor_dev_attr_temp2_auto_offset4.dev_attr.attr,
2561        &sensor_dev_attr_temp2_auto_offset5.dev_attr.attr,
2562        &sensor_dev_attr_temp2_auto_offset6.dev_attr.attr,
2563        &sensor_dev_attr_temp2_auto_offset7.dev_attr.attr,
2564        &sensor_dev_attr_temp2_auto_offset8.dev_attr.attr,
2565        &sensor_dev_attr_temp2_auto_offset9.dev_attr.attr,
2566        &sensor_dev_attr_temp2_auto_offset10.dev_attr.attr,
2567        &sensor_dev_attr_temp2_auto_offset11.dev_attr.attr,
2568        &sensor_dev_attr_temp2_auto_offset12.dev_attr.attr,
2569        &sensor_dev_attr_temp3_auto_offset1.dev_attr.attr,
2570        &sensor_dev_attr_temp3_auto_offset2.dev_attr.attr,
2571        &sensor_dev_attr_temp3_auto_offset3.dev_attr.attr,
2572        &sensor_dev_attr_temp3_auto_offset4.dev_attr.attr,
2573        &sensor_dev_attr_temp3_auto_offset5.dev_attr.attr,
2574        &sensor_dev_attr_temp3_auto_offset6.dev_attr.attr,
2575        &sensor_dev_attr_temp3_auto_offset7.dev_attr.attr,
2576        &sensor_dev_attr_temp3_auto_offset8.dev_attr.attr,
2577        &sensor_dev_attr_temp3_auto_offset9.dev_attr.attr,
2578        &sensor_dev_attr_temp3_auto_offset10.dev_attr.attr,
2579        &sensor_dev_attr_temp3_auto_offset11.dev_attr.attr,
2580        &sensor_dev_attr_temp3_auto_offset12.dev_attr.attr,
2581        &sensor_dev_attr_temp1_auto_pwm_min.dev_attr.attr,
2582        &sensor_dev_attr_temp2_auto_pwm_min.dev_attr.attr,
2583        &sensor_dev_attr_temp3_auto_pwm_min.dev_attr.attr,
2584        &sensor_dev_attr_temp1_auto_offset_hyst.dev_attr.attr,
2585        &sensor_dev_attr_temp2_auto_offset_hyst.dev_attr.attr,
2586        &sensor_dev_attr_temp3_auto_offset_hyst.dev_attr.attr,
2587        &sensor_dev_attr_fan1_input.dev_attr.attr,
2588        &sensor_dev_attr_fan2_input.dev_attr.attr,
2589        &sensor_dev_attr_fan3_input.dev_attr.attr,
2590        &sensor_dev_attr_fan4_input.dev_attr.attr,
2591        &sensor_dev_attr_fan1_min.dev_attr.attr,
2592        &sensor_dev_attr_fan2_min.dev_attr.attr,
2593        &sensor_dev_attr_fan3_min.dev_attr.attr,
2594        &sensor_dev_attr_fan4_min.dev_attr.attr,
2595        &sensor_dev_attr_fan1_smart_tach.dev_attr.attr,
2596        &sensor_dev_attr_fan2_smart_tach.dev_attr.attr,
2597        &sensor_dev_attr_fan3_smart_tach.dev_attr.attr,
2598        &sensor_dev_attr_fan4_smart_tach.dev_attr.attr,
2599        &sensor_dev_attr_pwm1.dev_attr.attr,
2600        &sensor_dev_attr_pwm2.dev_attr.attr,
2601        &sensor_dev_attr_pwm1_enable.dev_attr.attr,
2602        &sensor_dev_attr_pwm2_enable.dev_attr.attr,
2603        &sensor_dev_attr_pwm1_freq.dev_attr.attr,
2604        &sensor_dev_attr_pwm2_freq.dev_attr.attr,
2605        &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
2606        &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
2607        &sensor_dev_attr_pwm1_auto_spinup_min.dev_attr.attr,
2608        &sensor_dev_attr_pwm2_auto_spinup_min.dev_attr.attr,
2609        &sensor_dev_attr_pwm1_auto_spinup_time.dev_attr.attr,
2610        &sensor_dev_attr_pwm2_auto_spinup_time.dev_attr.attr,
2611        &dev_attr_pwm_auto_prochot_ramp.attr,
2612        &dev_attr_pwm_auto_vrdhot_ramp.attr,
2613        &sensor_dev_attr_cpu0_vid.dev_attr.attr,
2614        &sensor_dev_attr_cpu1_vid.dev_attr.attr,
2615        &sensor_dev_attr_prochot1.dev_attr.attr,
2616        &sensor_dev_attr_prochot2.dev_attr.attr,
2617        &sensor_dev_attr_prochot1_avg.dev_attr.attr,
2618        &sensor_dev_attr_prochot2_avg.dev_attr.attr,
2619        &sensor_dev_attr_prochot1_max.dev_attr.attr,
2620        &sensor_dev_attr_prochot2_max.dev_attr.attr,
2621        &sensor_dev_attr_prochot1_override.dev_attr.attr,
2622        &sensor_dev_attr_prochot2_override.dev_attr.attr,
2623        &sensor_dev_attr_prochot1_interval.dev_attr.attr,
2624        &sensor_dev_attr_prochot2_interval.dev_attr.attr,
2625        &dev_attr_prochot_override_duty_cycle.attr,
2626        &dev_attr_prochot_short.attr,
2627        &sensor_dev_attr_vrdhot1.dev_attr.attr,
2628        &sensor_dev_attr_vrdhot2.dev_attr.attr,
2629        &dev_attr_gpio.attr,
2630        &dev_attr_alarms.attr,
2631        NULL
2632};
2633
2634static struct attribute_group lm93_attr_grp = {
2635        .attrs = lm93_attrs,
2636};
2637
2638static void lm93_init_client(struct i2c_client *client)
2639{
2640        int i;
2641        u8 reg;
2642
2643        /* configure VID pin input thresholds */
2644        reg = lm93_read_byte(client, LM93_REG_GPI_VID_CTL);
2645        lm93_write_byte(client, LM93_REG_GPI_VID_CTL,
2646                        reg | (vid_agtl ? 0x03 : 0x00));
2647
2648        if (init) {
2649                /* enable #ALERT pin */
2650                reg = lm93_read_byte(client, LM93_REG_CONFIG);
2651                lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x08);
2652
2653                /* enable ASF mode for BMC status registers */
2654                reg = lm93_read_byte(client, LM93_REG_STATUS_CONTROL);
2655                lm93_write_byte(client, LM93_REG_STATUS_CONTROL, reg | 0x02);
2656
2657                /* set sleep state to S0 */
2658                lm93_write_byte(client, LM93_REG_SLEEP_CONTROL, 0);
2659
2660                /* unmask #VRDHOT and dynamic VCCP (if nec) error events */
2661                reg = lm93_read_byte(client, LM93_REG_MISC_ERR_MASK);
2662                reg &= ~0x03;
2663                reg &= ~(vccp_limit_type[0] ? 0x10 : 0);
2664                reg &= ~(vccp_limit_type[1] ? 0x20 : 0);
2665                lm93_write_byte(client, LM93_REG_MISC_ERR_MASK, reg);
2666        }
2667
2668        /* start monitoring */
2669        reg = lm93_read_byte(client, LM93_REG_CONFIG);
2670        lm93_write_byte(client, LM93_REG_CONFIG, reg | 0x01);
2671
2672        /* spin until ready */
2673        for (i = 0; i < 20; i++) {
2674                msleep(10);
2675                if ((lm93_read_byte(client, LM93_REG_CONFIG) & 0x80) == 0x80)
2676                        return;
2677        }
2678
2679        dev_warn(&client->dev,
2680                 "timed out waiting for sensor chip to signal ready!\n");
2681}
2682
2683/* Return 0 if detection is successful, -ENODEV otherwise */
2684static int lm93_detect(struct i2c_client *client, struct i2c_board_info *info)
2685{
2686        struct i2c_adapter *adapter = client->adapter;
2687        int mfr, ver;
2688        const char *name;
2689
2690        if (!i2c_check_functionality(adapter, LM93_SMBUS_FUNC_MIN))
2691                return -ENODEV;
2692
2693        /* detection */
2694        mfr = lm93_read_byte(client, LM93_REG_MFR_ID);
2695        if (mfr != 0x01) {
2696                dev_dbg(&adapter->dev,
2697                        "detect failed, bad manufacturer id 0x%02x!\n", mfr);
2698                return -ENODEV;
2699        }
2700
2701        ver = lm93_read_byte(client, LM93_REG_VER);
2702        switch (ver) {
2703        case LM93_MFR_ID:
2704        case LM93_MFR_ID_PROTOTYPE:
2705                name = "lm93";
2706                break;
2707        case LM94_MFR_ID_2:
2708        case LM94_MFR_ID:
2709        case LM94_MFR_ID_PROTOTYPE:
2710                name = "lm94";
2711                break;
2712        default:
2713                dev_dbg(&adapter->dev,
2714                        "detect failed, bad version id 0x%02x!\n", ver);
2715                return -ENODEV;
2716        }
2717
2718        strlcpy(info->type, name, I2C_NAME_SIZE);
2719        dev_dbg(&adapter->dev, "loading %s at %d, 0x%02x\n",
2720                client->name, i2c_adapter_id(client->adapter),
2721                client->addr);
2722
2723        return 0;
2724}
2725
2726static int lm93_probe(struct i2c_client *client,
2727                      const struct i2c_device_id *id)
2728{
2729        struct lm93_data *data;
2730        int err, func;
2731        void (*update)(struct lm93_data *, struct i2c_client *);
2732
2733        /* choose update routine based on bus capabilities */
2734        func = i2c_get_functionality(client->adapter);
2735        if (((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) &&
2736                        (!disable_block)) {
2737                dev_dbg(&client->dev, "using SMBus block data transactions\n");
2738                update = lm93_update_client_full;
2739        } else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) {
2740                dev_dbg(&client->dev,
2741                        "disabled SMBus block data transactions\n");
2742                update = lm93_update_client_min;
2743        } else {
2744                dev_dbg(&client->dev,
2745                        "detect failed, smbus byte and/or word data not supported!\n");
2746                return -ENODEV;
2747        }
2748
2749        data = devm_kzalloc(&client->dev, sizeof(struct lm93_data), GFP_KERNEL);
2750        if (!data) {
2751                dev_dbg(&client->dev, "out of memory!\n");
2752                return -ENOMEM;
2753        }
2754        i2c_set_clientdata(client, data);
2755
2756        /* housekeeping */
2757        data->valid = 0;
2758        data->update = update;
2759        mutex_init(&data->update_lock);
2760
2761        /* initialize the chip */
2762        lm93_init_client(client);
2763
2764        err = sysfs_create_group(&client->dev.kobj, &lm93_attr_grp);
2765        if (err)
2766                return err;
2767
2768        /* Register hwmon driver class */
2769        data->hwmon_dev = hwmon_device_register(&client->dev);
2770        if (!IS_ERR(data->hwmon_dev))
2771                return 0;
2772
2773        err = PTR_ERR(data->hwmon_dev);
2774        dev_err(&client->dev, "error registering hwmon device.\n");
2775        sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
2776        return err;
2777}
2778
2779static int lm93_remove(struct i2c_client *client)
2780{
2781        struct lm93_data *data = i2c_get_clientdata(client);
2782
2783        hwmon_device_unregister(data->hwmon_dev);
2784        sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp);
2785
2786        return 0;
2787}
2788
2789static const struct i2c_device_id lm93_id[] = {
2790        { "lm93", 0 },
2791        { "lm94", 0 },
2792        { }
2793};
2794MODULE_DEVICE_TABLE(i2c, lm93_id);
2795
2796static struct i2c_driver lm93_driver = {
2797        .class          = I2C_CLASS_HWMON,
2798        .driver = {
2799                .name   = "lm93",
2800        },
2801        .probe          = lm93_probe,
2802        .remove         = lm93_remove,
2803        .id_table       = lm93_id,
2804        .detect         = lm93_detect,
2805        .address_list   = normal_i2c,
2806};
2807
2808module_i2c_driver(lm93_driver);
2809
2810MODULE_AUTHOR("Mark M. Hoffman <mhoffman@lightlink.com>, "
2811                "Hans J. Koch <hjk@hansjkoch.de>");
2812MODULE_DESCRIPTION("LM93 driver");
2813MODULE_LICENSE("GPL");
2814
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