drivers/thermal/qcom/tsens-v0_1.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (c) 2015, The Linux Foundation. All rights reserved.
   4  */
   5
   6 #include <linux/platform_device.h>
   7 #include "tsens.h"
   8
   9 /* ----- SROT ------ */
  10 #define SROT_CTRL_OFF 0x0000
  11
  12 /* ----- TM ------ */
  13 #define TM_INT_EN_OFF                           0x0000
  14 #define TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF       0x0004
  15 #define TM_Sn_STATUS_OFF                        0x0030
  16 #define TM_TRDY_OFF                             0x005c
  17
  18 /* eeprom layout data for 8916 */
  19 #define MSM8916_BASE0_MASK      0x0000007f
  20 #define MSM8916_BASE1_MASK      0xfe000000
  21 #define MSM8916_BASE0_SHIFT     0
  22 #define MSM8916_BASE1_SHIFT     25
  23
  24 #define MSM8916_S0_P1_MASK      0x00000f80
  25 #define MSM8916_S1_P1_MASK      0x003e0000
  26 #define MSM8916_S2_P1_MASK      0xf8000000
  27 #define MSM8916_S3_P1_MASK      0x000003e0
  28 #define MSM8916_S4_P1_MASK      0x000f8000
  29
  30 #define MSM8916_S0_P2_MASK      0x0001f000
  31 #define MSM8916_S1_P2_MASK      0x07c00000
  32 #define MSM8916_S2_P2_MASK      0x0000001f
  33 #define MSM8916_S3_P2_MASK      0x00007c00
  34 #define MSM8916_S4_P2_MASK      0x01f00000
  35
  36 #define MSM8916_S0_P1_SHIFT     7
  37 #define MSM8916_S1_P1_SHIFT     17
  38 #define MSM8916_S2_P1_SHIFT     27
  39 #define MSM8916_S3_P1_SHIFT     5
  40 #define MSM8916_S4_P1_SHIFT     15
  41
  42 #define MSM8916_S0_P2_SHIFT     12
  43 #define MSM8916_S1_P2_SHIFT     22
  44 #define MSM8916_S2_P2_SHIFT     0
  45 #define MSM8916_S3_P2_SHIFT     10
  46 #define MSM8916_S4_P2_SHIFT     20
  47
  48 #define MSM8916_CAL_SEL_MASK    0xe0000000
  49 #define MSM8916_CAL_SEL_SHIFT   29
  50
  51 /* eeprom layout data for 8974 */
  52 #define BASE1_MASK              0xff
  53 #define S0_P1_MASK              0x3f00
  54 #define S1_P1_MASK              0xfc000
  55 #define S2_P1_MASK              0x3f00000
  56 #define S3_P1_MASK              0xfc000000
  57 #define S4_P1_MASK              0x3f
  58 #define S5_P1_MASK              0xfc0
  59 #define S6_P1_MASK              0x3f000
  60 #define S7_P1_MASK              0xfc0000
  61 #define S8_P1_MASK              0x3f000000
  62 #define S8_P1_MASK_BKP          0x3f
  63 #define S9_P1_MASK              0x3f
  64 #define S9_P1_MASK_BKP          0xfc0
  65 #define S10_P1_MASK             0xfc0
  66 #define S10_P1_MASK_BKP         0x3f000
  67 #define CAL_SEL_0_1             0xc0000000
  68 #define CAL_SEL_2               0x40000000
  69 #define CAL_SEL_SHIFT           30
  70 #define CAL_SEL_SHIFT_2         28
  71
  72 #define S0_P1_SHIFT             8
  73 #define S1_P1_SHIFT             14
  74 #define S2_P1_SHIFT             20
  75 #define S3_P1_SHIFT             26
  76 #define S5_P1_SHIFT             6
  77 #define S6_P1_SHIFT             12
  78 #define S7_P1_SHIFT             18
  79 #define S8_P1_SHIFT             24
  80 #define S9_P1_BKP_SHIFT         6
  81 #define S10_P1_SHIFT            6
  82 #define S10_P1_BKP_SHIFT        12
  83
  84 #define BASE2_SHIFT             12
  85 #define BASE2_BKP_SHIFT         18
  86 #define S0_P2_SHIFT             20
  87 #define S0_P2_BKP_SHIFT         26
  88 #define S1_P2_SHIFT             26
  89 #define S2_P2_BKP_SHIFT         6
  90 #define S3_P2_SHIFT             6
  91 #define S3_P2_BKP_SHIFT         12
  92 #define S4_P2_SHIFT             12
  93 #define S4_P2_BKP_SHIFT         18
  94 #define S5_P2_SHIFT             18
  95 #define S5_P2_BKP_SHIFT         24
  96 #define S6_P2_SHIFT             24
  97 #define S7_P2_BKP_SHIFT         6
  98 #define S8_P2_SHIFT             6
  99 #define S8_P2_BKP_SHIFT         12
 100 #define S9_P2_SHIFT             12
 101 #define S9_P2_BKP_SHIFT         18
 102 #define S10_P2_SHIFT            18
 103 #define S10_P2_BKP_SHIFT        24
 104
 105 #define BASE2_MASK              0xff000
 106 #define BASE2_BKP_MASK          0xfc0000
 107 #define S0_P2_MASK              0x3f00000
 108 #define S0_P2_BKP_MASK          0xfc000000
 109 #define S1_P2_MASK              0xfc000000
 110 #define S1_P2_BKP_MASK          0x3f
 111 #define S2_P2_MASK              0x3f
 112 #define S2_P2_BKP_MASK          0xfc0
 113 #define S3_P2_MASK              0xfc0
 114 #define S3_P2_BKP_MASK          0x3f000
 115 #define S4_P2_MASK              0x3f000
 116 #define S4_P2_BKP_MASK          0xfc0000
 117 #define S5_P2_MASK              0xfc0000
 118 #define S5_P2_BKP_MASK          0x3f000000
 119 #define S6_P2_MASK              0x3f000000
 120 #define S6_P2_BKP_MASK          0x3f
 121 #define S7_P2_MASK              0x3f
 122 #define S7_P2_BKP_MASK          0xfc0
 123 #define S8_P2_MASK              0xfc0
 124 #define S8_P2_BKP_MASK          0x3f000
 125 #define S9_P2_MASK              0x3f000
 126 #define S9_P2_BKP_MASK          0xfc0000
 127 #define S10_P2_MASK             0xfc0000
 128 #define S10_P2_BKP_MASK         0x3f000000
 129
 130 #define BKP_SEL                 0x3
 131 #define BKP_REDUN_SEL           0xe0000000
 132 #define BKP_REDUN_SHIFT         29
 133
 134 #define BIT_APPEND              0x3
 135
 136 static int calibrate_8916(struct tsens_priv *priv)
 137 {
 138         int base0 = 0, base1 = 0, i;
 139         u32 p1[5], p2[5];
 140         int mode = 0;
 141         u32 *qfprom_cdata, *qfprom_csel;
 142
 143         qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
 144         if (IS_ERR(qfprom_cdata))
 145                 return PTR_ERR(qfprom_cdata);
 146
 147         qfprom_csel = (u32 *)qfprom_read(priv->dev, "calib_sel");
 148         if (IS_ERR(qfprom_csel)) {
 149                 kfree(qfprom_cdata);
 150                 return PTR_ERR(qfprom_csel);
 151         }
 152
 153         mode = (qfprom_csel[0] & MSM8916_CAL_SEL_MASK) >> MSM8916_CAL_SEL_SHIFT;
 154         dev_dbg(priv->dev, "calibration mode is %d\n", mode);
 155
 156         switch (mode) {
 157         case TWO_PT_CALIB:
 158                 base1 = (qfprom_cdata[1] & MSM8916_BASE1_MASK) >> MSM8916_BASE1_SHIFT;
 159                 p2[0] = (qfprom_cdata[0] & MSM8916_S0_P2_MASK) >> MSM8916_S0_P2_SHIFT;
 160                 p2[1] = (qfprom_cdata[0] & MSM8916_S1_P2_MASK) >> MSM8916_S1_P2_SHIFT;
 161                 p2[2] = (qfprom_cdata[1] & MSM8916_S2_P2_MASK) >> MSM8916_S2_P2_SHIFT;
 162                 p2[3] = (qfprom_cdata[1] & MSM8916_S3_P2_MASK) >> MSM8916_S3_P2_SHIFT;
 163                 p2[4] = (qfprom_cdata[1] & MSM8916_S4_P2_MASK) >> MSM8916_S4_P2_SHIFT;
 164                 for (i = 0; i < priv->num_sensors; i++)
 165                         p2[i] = ((base1 + p2[i]) << 3);
 166                 /* Fall through */
 167         case ONE_PT_CALIB2:
 168                 base0 = (qfprom_cdata[0] & MSM8916_BASE0_MASK);
 169                 p1[0] = (qfprom_cdata[0] & MSM8916_S0_P1_MASK) >> MSM8916_S0_P1_SHIFT;
 170                 p1[1] = (qfprom_cdata[0] & MSM8916_S1_P1_MASK) >> MSM8916_S1_P1_SHIFT;
 171                 p1[2] = (qfprom_cdata[0] & MSM8916_S2_P1_MASK) >> MSM8916_S2_P1_SHIFT;
 172                 p1[3] = (qfprom_cdata[1] & MSM8916_S3_P1_MASK) >> MSM8916_S3_P1_SHIFT;
 173                 p1[4] = (qfprom_cdata[1] & MSM8916_S4_P1_MASK) >> MSM8916_S4_P1_SHIFT;
 174                 for (i = 0; i < priv->num_sensors; i++)
 175                         p1[i] = (((base0) + p1[i]) << 3);
 176                 break;
 177         default:
 178                 for (i = 0; i < priv->num_sensors; i++) {
 179                         p1[i] = 500;
 180                         p2[i] = 780;
 181                 }
 182                 break;
 183         }
 184
 185         compute_intercept_slope(priv, p1, p2, mode);
 186         kfree(qfprom_cdata);
 187         kfree(qfprom_csel);
 188
 189         return 0;
 190 }
 191
 192 static int calibrate_8974(struct tsens_priv *priv)
 193 {
 194         int base1 = 0, base2 = 0, i;
 195         u32 p1[11], p2[11];
 196         int mode = 0;
 197         u32 *calib, *bkp;
 198         u32 calib_redun_sel;
 199
 200         calib = (u32 *)qfprom_read(priv->dev, "calib");
 201         if (IS_ERR(calib))
 202                 return PTR_ERR(calib);
 203
 204         bkp = (u32 *)qfprom_read(priv->dev, "calib_backup");
 205         if (IS_ERR(bkp)) {
 206                 kfree(calib);
 207                 return PTR_ERR(bkp);
 208         }
 209
 210         calib_redun_sel =  bkp[1] & BKP_REDUN_SEL;
 211         calib_redun_sel >>= BKP_REDUN_SHIFT;
 212
 213         if (calib_redun_sel == BKP_SEL) {
 214                 mode = (calib[4] & CAL_SEL_0_1) >> CAL_SEL_SHIFT;
 215                 mode |= (calib[5] & CAL_SEL_2) >> CAL_SEL_SHIFT_2;
 216
 217                 switch (mode) {
 218                 case TWO_PT_CALIB:
 219                         base2 = (bkp[2] & BASE2_BKP_MASK) >> BASE2_BKP_SHIFT;
 220                         p2[0] = (bkp[2] & S0_P2_BKP_MASK) >> S0_P2_BKP_SHIFT;
 221                         p2[1] = (bkp[3] & S1_P2_BKP_MASK);
 222                         p2[2] = (bkp[3] & S2_P2_BKP_MASK) >> S2_P2_BKP_SHIFT;
 223                         p2[3] = (bkp[3] & S3_P2_BKP_MASK) >> S3_P2_BKP_SHIFT;
 224                         p2[4] = (bkp[3] & S4_P2_BKP_MASK) >> S4_P2_BKP_SHIFT;
 225                         p2[5] = (calib[4] & S5_P2_BKP_MASK) >> S5_P2_BKP_SHIFT;
 226                         p2[6] = (calib[5] & S6_P2_BKP_MASK);
 227                         p2[7] = (calib[5] & S7_P2_BKP_MASK) >> S7_P2_BKP_SHIFT;
 228                         p2[8] = (calib[5] & S8_P2_BKP_MASK) >> S8_P2_BKP_SHIFT;
 229                         p2[9] = (calib[5] & S9_P2_BKP_MASK) >> S9_P2_BKP_SHIFT;
 230                         p2[10] = (calib[5] & S10_P2_BKP_MASK) >> S10_P2_BKP_SHIFT;
 231                         /* Fall through */
 232                 case ONE_PT_CALIB:
 233                 case ONE_PT_CALIB2:
 234                         base1 = bkp[0] & BASE1_MASK;
 235                         p1[0] = (bkp[0] & S0_P1_MASK) >> S0_P1_SHIFT;
 236                         p1[1] = (bkp[0] & S1_P1_MASK) >> S1_P1_SHIFT;
 237                         p1[2] = (bkp[0] & S2_P1_MASK) >> S2_P1_SHIFT;
 238                         p1[3] = (bkp[0] & S3_P1_MASK) >> S3_P1_SHIFT;
 239                         p1[4] = (bkp[1] & S4_P1_MASK);
 240                         p1[5] = (bkp[1] & S5_P1_MASK) >> S5_P1_SHIFT;
 241                         p1[6] = (bkp[1] & S6_P1_MASK) >> S6_P1_SHIFT;
 242                         p1[7] = (bkp[1] & S7_P1_MASK) >> S7_P1_SHIFT;
 243                         p1[8] = (bkp[2] & S8_P1_MASK_BKP) >> S8_P1_SHIFT;
 244                         p1[9] = (bkp[2] & S9_P1_MASK_BKP) >> S9_P1_BKP_SHIFT;
 245                         p1[10] = (bkp[2] & S10_P1_MASK_BKP) >> S10_P1_BKP_SHIFT;
 246                         break;
 247                 }
 248         } else {
 249                 mode = (calib[1] & CAL_SEL_0_1) >> CAL_SEL_SHIFT;
 250                 mode |= (calib[3] & CAL_SEL_2) >> CAL_SEL_SHIFT_2;
 251
 252                 switch (mode) {
 253                 case TWO_PT_CALIB:
 254                         base2 = (calib[2] & BASE2_MASK) >> BASE2_SHIFT;
 255                         p2[0] = (calib[2] & S0_P2_MASK) >> S0_P2_SHIFT;
 256                         p2[1] = (calib[2] & S1_P2_MASK) >> S1_P2_SHIFT;
 257                         p2[2] = (calib[3] & S2_P2_MASK);
 258                         p2[3] = (calib[3] & S3_P2_MASK) >> S3_P2_SHIFT;
 259                         p2[4] = (calib[3] & S4_P2_MASK) >> S4_P2_SHIFT;
 260                         p2[5] = (calib[3] & S5_P2_MASK) >> S5_P2_SHIFT;
 261                         p2[6] = (calib[3] & S6_P2_MASK) >> S6_P2_SHIFT;
 262                         p2[7] = (calib[4] & S7_P2_MASK);
 263                         p2[8] = (calib[4] & S8_P2_MASK) >> S8_P2_SHIFT;
 264                         p2[9] = (calib[4] & S9_P2_MASK) >> S9_P2_SHIFT;
 265                         p2[10] = (calib[4] & S10_P2_MASK) >> S10_P2_SHIFT;
 266                         /* Fall through */
 267                 case ONE_PT_CALIB:
 268                 case ONE_PT_CALIB2:
 269                         base1 = calib[0] & BASE1_MASK;
 270                         p1[0] = (calib[0] & S0_P1_MASK) >> S0_P1_SHIFT;
 271                         p1[1] = (calib[0] & S1_P1_MASK) >> S1_P1_SHIFT;
 272                         p1[2] = (calib[0] & S2_P1_MASK) >> S2_P1_SHIFT;
 273                         p1[3] = (calib[0] & S3_P1_MASK) >> S3_P1_SHIFT;
 274                         p1[4] = (calib[1] & S4_P1_MASK);
 275                         p1[5] = (calib[1] & S5_P1_MASK) >> S5_P1_SHIFT;
 276                         p1[6] = (calib[1] & S6_P1_MASK) >> S6_P1_SHIFT;
 277                         p1[7] = (calib[1] & S7_P1_MASK) >> S7_P1_SHIFT;
 278                         p1[8] = (calib[1] & S8_P1_MASK) >> S8_P1_SHIFT;
 279                         p1[9] = (calib[2] & S9_P1_MASK);
 280                         p1[10] = (calib[2] & S10_P1_MASK) >> S10_P1_SHIFT;
 281                         break;
 282                 }
 283         }
 284
 285         switch (mode) {
 286         case ONE_PT_CALIB:
 287                 for (i = 0; i < priv->num_sensors; i++)
 288                         p1[i] += (base1 << 2) | BIT_APPEND;
 289                 break;
 290         case TWO_PT_CALIB:
 291                 for (i = 0; i < priv->num_sensors; i++) {
 292                         p2[i] += base2;
 293                         p2[i] <<= 2;
 294                         p2[i] |= BIT_APPEND;
 295                 }
 296                 /* Fall through */
 297         case ONE_PT_CALIB2:
 298                 for (i = 0; i < priv->num_sensors; i++) {
 299                         p1[i] += base1;
 300                         p1[i] <<= 2;
 301                         p1[i] |= BIT_APPEND;
 302                 }
 303                 break;
 304         default:
 305                 for (i = 0; i < priv->num_sensors; i++)
 306                         p2[i] = 780;
 307                 p1[0] = 502;
 308                 p1[1] = 509;
 309                 p1[2] = 503;
 310                 p1[3] = 509;
 311                 p1[4] = 505;
 312                 p1[5] = 509;
 313                 p1[6] = 507;
 314                 p1[7] = 510;
 315                 p1[8] = 508;
 316                 p1[9] = 509;
 317                 p1[10] = 508;
 318                 break;
 319         }
 320
 321         compute_intercept_slope(priv, p1, p2, mode);
 322         kfree(calib);
 323         kfree(bkp);
 324
 325         return 0;
 326 }
 327
 328 /* v0.1: 8916, 8974 */
 329
 330 static struct tsens_features tsens_v0_1_feat = {
 331         .ver_major      = VER_0_1,
 332         .crit_int       = 0,
 333         .adc            = 1,
 334         .srot_split     = 1,
 335         .max_sensors    = 11,
 336 };
 337
 338 static const struct reg_field tsens_v0_1_regfields[MAX_REGFIELDS] = {
 339         /* ----- SROT ------ */
 340         /* No VERSION information */
 341
 342         /* CTRL_OFFSET */
 343         [TSENS_EN]     = REG_FIELD(SROT_CTRL_OFF, 0,  0),
 344         [TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1,  1),
 345
 346         /* ----- TM ------ */
 347         /* INTERRUPT ENABLE */
 348         [INT_EN] = REG_FIELD(TM_INT_EN_OFF, 0, 0),
 349
 350         /* UPPER/LOWER TEMPERATURE THRESHOLDS */
 351         REG_FIELD_FOR_EACH_SENSOR11(LOW_THRESH,    TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF,  0,  9),
 352         REG_FIELD_FOR_EACH_SENSOR11(UP_THRESH,     TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 10, 19),
 353
 354         /* UPPER/LOWER INTERRUPTS [CLEAR/STATUS] */
 355         REG_FIELD_FOR_EACH_SENSOR11(LOW_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 20, 20),
 356         REG_FIELD_FOR_EACH_SENSOR11(UP_INT_CLEAR,  TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 21, 21),
 357
 358         /* NO CRITICAL INTERRUPT SUPPORT on v0.1 */
 359
 360         /* Sn_STATUS */
 361         REG_FIELD_FOR_EACH_SENSOR11(LAST_TEMP,    TM_Sn_STATUS_OFF,  0,  9),
 362         /* No VALID field on v0.1 */
 363         /* xxx_STATUS bits: 1 == threshold violated */
 364         REG_FIELD_FOR_EACH_SENSOR11(MIN_STATUS,   TM_Sn_STATUS_OFF, 10, 10),
 365         REG_FIELD_FOR_EACH_SENSOR11(LOWER_STATUS, TM_Sn_STATUS_OFF, 11, 11),
 366         REG_FIELD_FOR_EACH_SENSOR11(UPPER_STATUS, TM_Sn_STATUS_OFF, 12, 12),
 367         /* No CRITICAL field on v0.1 */
 368         REG_FIELD_FOR_EACH_SENSOR11(MAX_STATUS,   TM_Sn_STATUS_OFF, 13, 13),
 369
 370         /* TRDY: 1=ready, 0=in progress */
 371         [TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0),
 372 };
 373
 374 static const struct tsens_ops ops_8916 = {
 375         .init           = init_common,
 376         .calibrate      = calibrate_8916,
 377         .get_temp       = get_temp_common,
 378 };
 379
 380 struct tsens_plat_data data_8916 = {
 381         .num_sensors    = 5,
 382         .ops            = &ops_8916,
 383         .hw_ids         = (unsigned int []){0, 1, 2, 4, 5 },
 384
 385         .feat           = &tsens_v0_1_feat,
 386         .fields = tsens_v0_1_regfields,
 387 };
 388
 389 static const struct tsens_ops ops_8974 = {
 390         .init           = init_common,
 391         .calibrate      = calibrate_8974,
 392         .get_temp       = get_temp_common,
 393 };
 394
 395 struct tsens_plat_data data_8974 = {
 396         .num_sensors    = 11,
 397         .ops            = &ops_8974,
 398         .feat           = &tsens_v0_1_feat,
 399         .fields = tsens_v0_1_regfields,
 400 };