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 const 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 const 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 const 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 }; 401