1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Tegra124 DFLL FCPU clock source driver 4 * 5 * Copyright (C) 2012-2019 NVIDIA Corporation. All rights reserved. 6 * 7 * Aleksandr Frid <afrid@nvidia.com> 8 * Paul Walmsley <pwalmsley@nvidia.com> 9 */ 10 11 #include <linux/cpu.h> 12 #include <linux/err.h> 13 #include <linux/kernel.h> 14 #include <linux/init.h> 15 #include <linux/of.h> 16 #include <linux/platform_device.h> 17 #include <linux/regulator/consumer.h> 18 #include <soc/tegra/fuse.h> 19 20 #include "clk.h" 21 #include "clk-dfll.h" 22 #include "cvb.h" 23 24 struct dfll_fcpu_data { 25 const unsigned long *cpu_max_freq_table; 26 unsigned int cpu_max_freq_table_size; 27 const struct cvb_table *cpu_cvb_tables; 28 unsigned int cpu_cvb_tables_size; 29 }; 30 31 /* Maximum CPU frequency, indexed by CPU speedo id */ 32 static const unsigned long tegra124_cpu_max_freq_table[] = { 33 [0] = 2014500000UL, 34 [1] = 2320500000UL, 35 [2] = 2116500000UL, 36 [3] = 2524500000UL, 37 }; 38 39 static const struct cvb_table tegra124_cpu_cvb_tables[] = { 40 { 41 .speedo_id = -1, 42 .process_id = -1, 43 .min_millivolts = 900, 44 .max_millivolts = 1260, 45 .speedo_scale = 100, 46 .voltage_scale = 1000, 47 .entries = { 48 { 204000000UL, { 1112619, -29295, 402 } }, 49 { 306000000UL, { 1150460, -30585, 402 } }, 50 { 408000000UL, { 1190122, -31865, 402 } }, 51 { 510000000UL, { 1231606, -33155, 402 } }, 52 { 612000000UL, { 1274912, -34435, 402 } }, 53 { 714000000UL, { 1320040, -35725, 402 } }, 54 { 816000000UL, { 1366990, -37005, 402 } }, 55 { 918000000UL, { 1415762, -38295, 402 } }, 56 { 1020000000UL, { 1466355, -39575, 402 } }, 57 { 1122000000UL, { 1518771, -40865, 402 } }, 58 { 1224000000UL, { 1573009, -42145, 402 } }, 59 { 1326000000UL, { 1629068, -43435, 402 } }, 60 { 1428000000UL, { 1686950, -44715, 402 } }, 61 { 1530000000UL, { 1746653, -46005, 402 } }, 62 { 1632000000UL, { 1808179, -47285, 402 } }, 63 { 1734000000UL, { 1871526, -48575, 402 } }, 64 { 1836000000UL, { 1936696, -49855, 402 } }, 65 { 1938000000UL, { 2003687, -51145, 402 } }, 66 { 2014500000UL, { 2054787, -52095, 402 } }, 67 { 2116500000UL, { 2124957, -53385, 402 } }, 68 { 2218500000UL, { 2196950, -54665, 402 } }, 69 { 2320500000UL, { 2270765, -55955, 402 } }, 70 { 2422500000UL, { 2346401, -57235, 402 } }, 71 { 2524500000UL, { 2437299, -58535, 402 } }, 72 { 0UL, { 0, 0, 0 } }, 73 }, 74 .cpu_dfll_data = { 75 .tune0_low = 0x005020ff, 76 .tune0_high = 0x005040ff, 77 .tune1 = 0x00000060, 78 } 79 }, 80 }; 81 82 static const unsigned long tegra210_cpu_max_freq_table[] = { 83 [0] = 1912500000UL, 84 [1] = 1912500000UL, 85 [2] = 2218500000UL, 86 [3] = 1785000000UL, 87 [4] = 1632000000UL, 88 [5] = 1912500000UL, 89 [6] = 2014500000UL, 90 [7] = 1734000000UL, 91 [8] = 1683000000UL, 92 [9] = 1555500000UL, 93 [10] = 1504500000UL, 94 }; 95 96 #define CPU_CVB_TABLE \ 97 .speedo_scale = 100, \ 98 .voltage_scale = 1000, \ 99 .entries = { \ 100 { 204000000UL, { 1007452, -23865, 370 } }, \ 101 { 306000000UL, { 1052709, -24875, 370 } }, \ 102 { 408000000UL, { 1099069, -25895, 370 } }, \ 103 { 510000000UL, { 1146534, -26905, 370 } }, \ 104 { 612000000UL, { 1195102, -27915, 370 } }, \ 105 { 714000000UL, { 1244773, -28925, 370 } }, \ 106 { 816000000UL, { 1295549, -29935, 370 } }, \ 107 { 918000000UL, { 1347428, -30955, 370 } }, \ 108 { 1020000000UL, { 1400411, -31965, 370 } }, \ 109 { 1122000000UL, { 1454497, -32975, 370 } }, \ 110 { 1224000000UL, { 1509687, -33985, 370 } }, \ 111 { 1326000000UL, { 1565981, -35005, 370 } }, \ 112 { 1428000000UL, { 1623379, -36015, 370 } }, \ 113 { 1530000000UL, { 1681880, -37025, 370 } }, \ 114 { 1632000000UL, { 1741485, -38035, 370 } }, \ 115 { 1734000000UL, { 1802194, -39055, 370 } }, \ 116 { 1836000000UL, { 1864006, -40065, 370 } }, \ 117 { 1912500000UL, { 1910780, -40815, 370 } }, \ 118 { 2014500000UL, { 1227000, 0, 0 } }, \ 119 { 2218500000UL, { 1227000, 0, 0 } }, \ 120 { 0UL, { 0, 0, 0 } }, \ 121 } 122 123 #define CPU_CVB_TABLE_XA \ 124 .speedo_scale = 100, \ 125 .voltage_scale = 1000, \ 126 .entries = { \ 127 { 204000000UL, { 1250024, -39785, 565 } }, \ 128 { 306000000UL, { 1297556, -41145, 565 } }, \ 129 { 408000000UL, { 1346718, -42505, 565 } }, \ 130 { 510000000UL, { 1397511, -43855, 565 } }, \ 131 { 612000000UL, { 1449933, -45215, 565 } }, \ 132 { 714000000UL, { 1503986, -46575, 565 } }, \ 133 { 816000000UL, { 1559669, -47935, 565 } }, \ 134 { 918000000UL, { 1616982, -49295, 565 } }, \ 135 { 1020000000UL, { 1675926, -50645, 565 } }, \ 136 { 1122000000UL, { 1736500, -52005, 565 } }, \ 137 { 1224000000UL, { 1798704, -53365, 565 } }, \ 138 { 1326000000UL, { 1862538, -54725, 565 } }, \ 139 { 1428000000UL, { 1928003, -56085, 565 } }, \ 140 { 1530000000UL, { 1995097, -57435, 565 } }, \ 141 { 1606500000UL, { 2046149, -58445, 565 } }, \ 142 { 1632000000UL, { 2063822, -58795, 565 } }, \ 143 { 0UL, { 0, 0, 0 } }, \ 144 } 145 146 #define CPU_CVB_TABLE_EUCM1 \ 147 .speedo_scale = 100, \ 148 .voltage_scale = 1000, \ 149 .entries = { \ 150 { 204000000UL, { 734429, 0, 0 } }, \ 151 { 306000000UL, { 768191, 0, 0 } }, \ 152 { 408000000UL, { 801953, 0, 0 } }, \ 153 { 510000000UL, { 835715, 0, 0 } }, \ 154 { 612000000UL, { 869477, 0, 0 } }, \ 155 { 714000000UL, { 903239, 0, 0 } }, \ 156 { 816000000UL, { 937001, 0, 0 } }, \ 157 { 918000000UL, { 970763, 0, 0 } }, \ 158 { 1020000000UL, { 1004525, 0, 0 } }, \ 159 { 1122000000UL, { 1038287, 0, 0 } }, \ 160 { 1224000000UL, { 1072049, 0, 0 } }, \ 161 { 1326000000UL, { 1105811, 0, 0 } }, \ 162 { 1428000000UL, { 1130000, 0, 0 } }, \ 163 { 1555500000UL, { 1130000, 0, 0 } }, \ 164 { 1632000000UL, { 1170000, 0, 0 } }, \ 165 { 1734000000UL, { 1227500, 0, 0 } }, \ 166 { 0UL, { 0, 0, 0 } }, \ 167 } 168 169 #define CPU_CVB_TABLE_EUCM2 \ 170 .speedo_scale = 100, \ 171 .voltage_scale = 1000, \ 172 .entries = { \ 173 { 204000000UL, { 742283, 0, 0 } }, \ 174 { 306000000UL, { 776249, 0, 0 } }, \ 175 { 408000000UL, { 810215, 0, 0 } }, \ 176 { 510000000UL, { 844181, 0, 0 } }, \ 177 { 612000000UL, { 878147, 0, 0 } }, \ 178 { 714000000UL, { 912113, 0, 0 } }, \ 179 { 816000000UL, { 946079, 0, 0 } }, \ 180 { 918000000UL, { 980045, 0, 0 } }, \ 181 { 1020000000UL, { 1014011, 0, 0 } }, \ 182 { 1122000000UL, { 1047977, 0, 0 } }, \ 183 { 1224000000UL, { 1081943, 0, 0 } }, \ 184 { 1326000000UL, { 1090000, 0, 0 } }, \ 185 { 1479000000UL, { 1090000, 0, 0 } }, \ 186 { 1555500000UL, { 1162000, 0, 0 } }, \ 187 { 1683000000UL, { 1195000, 0, 0 } }, \ 188 { 0UL, { 0, 0, 0 } }, \ 189 } 190 191 #define CPU_CVB_TABLE_EUCM2_JOINT_RAIL \ 192 .speedo_scale = 100, \ 193 .voltage_scale = 1000, \ 194 .entries = { \ 195 { 204000000UL, { 742283, 0, 0 } }, \ 196 { 306000000UL, { 776249, 0, 0 } }, \ 197 { 408000000UL, { 810215, 0, 0 } }, \ 198 { 510000000UL, { 844181, 0, 0 } }, \ 199 { 612000000UL, { 878147, 0, 0 } }, \ 200 { 714000000UL, { 912113, 0, 0 } }, \ 201 { 816000000UL, { 946079, 0, 0 } }, \ 202 { 918000000UL, { 980045, 0, 0 } }, \ 203 { 1020000000UL, { 1014011, 0, 0 } }, \ 204 { 1122000000UL, { 1047977, 0, 0 } }, \ 205 { 1224000000UL, { 1081943, 0, 0 } }, \ 206 { 1326000000UL, { 1090000, 0, 0 } }, \ 207 { 1479000000UL, { 1090000, 0, 0 } }, \ 208 { 1504500000UL, { 1120000, 0, 0 } }, \ 209 { 0UL, { 0, 0, 0 } }, \ 210 } 211 212 #define CPU_CVB_TABLE_ODN \ 213 .speedo_scale = 100, \ 214 .voltage_scale = 1000, \ 215 .entries = { \ 216 { 204000000UL, { 721094, 0, 0 } }, \ 217 { 306000000UL, { 754040, 0, 0 } }, \ 218 { 408000000UL, { 786986, 0, 0 } }, \ 219 { 510000000UL, { 819932, 0, 0 } }, \ 220 { 612000000UL, { 852878, 0, 0 } }, \ 221 { 714000000UL, { 885824, 0, 0 } }, \ 222 { 816000000UL, { 918770, 0, 0 } }, \ 223 { 918000000UL, { 915716, 0, 0 } }, \ 224 { 1020000000UL, { 984662, 0, 0 } }, \ 225 { 1122000000UL, { 1017608, 0, 0 } }, \ 226 { 1224000000UL, { 1050554, 0, 0 } }, \ 227 { 1326000000UL, { 1083500, 0, 0 } }, \ 228 { 1428000000UL, { 1116446, 0, 0 } }, \ 229 { 1581000000UL, { 1130000, 0, 0 } }, \ 230 { 1683000000UL, { 1168000, 0, 0 } }, \ 231 { 1785000000UL, { 1227500, 0, 0 } }, \ 232 { 0UL, { 0, 0, 0 } }, \ 233 } 234 235 static struct cvb_table tegra210_cpu_cvb_tables[] = { 236 { 237 .speedo_id = 10, 238 .process_id = 0, 239 .min_millivolts = 840, 240 .max_millivolts = 1120, 241 CPU_CVB_TABLE_EUCM2_JOINT_RAIL, 242 .cpu_dfll_data = { 243 .tune0_low = 0xffead0ff, 244 .tune0_high = 0xffead0ff, 245 .tune1 = 0x20091d9, 246 .tune_high_min_millivolts = 864, 247 } 248 }, 249 { 250 .speedo_id = 10, 251 .process_id = 1, 252 .min_millivolts = 840, 253 .max_millivolts = 1120, 254 CPU_CVB_TABLE_EUCM2_JOINT_RAIL, 255 .cpu_dfll_data = { 256 .tune0_low = 0xffead0ff, 257 .tune0_high = 0xffead0ff, 258 .tune1 = 0x20091d9, 259 .tune_high_min_millivolts = 864, 260 } 261 }, 262 { 263 .speedo_id = 9, 264 .process_id = 0, 265 .min_millivolts = 900, 266 .max_millivolts = 1162, 267 CPU_CVB_TABLE_EUCM2, 268 .cpu_dfll_data = { 269 .tune0_low = 0xffead0ff, 270 .tune0_high = 0xffead0ff, 271 .tune1 = 0x20091d9, 272 } 273 }, 274 { 275 .speedo_id = 9, 276 .process_id = 1, 277 .min_millivolts = 900, 278 .max_millivolts = 1162, 279 CPU_CVB_TABLE_EUCM2, 280 .cpu_dfll_data = { 281 .tune0_low = 0xffead0ff, 282 .tune0_high = 0xffead0ff, 283 .tune1 = 0x20091d9, 284 } 285 }, 286 { 287 .speedo_id = 8, 288 .process_id = 0, 289 .min_millivolts = 900, 290 .max_millivolts = 1195, 291 CPU_CVB_TABLE_EUCM2, 292 .cpu_dfll_data = { 293 .tune0_low = 0xffead0ff, 294 .tune0_high = 0xffead0ff, 295 .tune1 = 0x20091d9, 296 } 297 }, 298 { 299 .speedo_id = 8, 300 .process_id = 1, 301 .min_millivolts = 900, 302 .max_millivolts = 1195, 303 CPU_CVB_TABLE_EUCM2, 304 .cpu_dfll_data = { 305 .tune0_low = 0xffead0ff, 306 .tune0_high = 0xffead0ff, 307 .tune1 = 0x20091d9, 308 } 309 }, 310 { 311 .speedo_id = 7, 312 .process_id = 0, 313 .min_millivolts = 841, 314 .max_millivolts = 1227, 315 CPU_CVB_TABLE_EUCM1, 316 .cpu_dfll_data = { 317 .tune0_low = 0xffead0ff, 318 .tune0_high = 0xffead0ff, 319 .tune1 = 0x20091d9, 320 .tune_high_min_millivolts = 864, 321 } 322 }, 323 { 324 .speedo_id = 7, 325 .process_id = 1, 326 .min_millivolts = 841, 327 .max_millivolts = 1227, 328 CPU_CVB_TABLE_EUCM1, 329 .cpu_dfll_data = { 330 .tune0_low = 0xffead0ff, 331 .tune0_high = 0xffead0ff, 332 .tune1 = 0x20091d9, 333 .tune_high_min_millivolts = 864, 334 } 335 }, 336 { 337 .speedo_id = 6, 338 .process_id = 0, 339 .min_millivolts = 870, 340 .max_millivolts = 1150, 341 CPU_CVB_TABLE, 342 .cpu_dfll_data = { 343 .tune0_low = 0xffead0ff, 344 .tune1 = 0x20091d9, 345 } 346 }, 347 { 348 .speedo_id = 6, 349 .process_id = 1, 350 .min_millivolts = 870, 351 .max_millivolts = 1150, 352 CPU_CVB_TABLE, 353 .cpu_dfll_data = { 354 .tune0_low = 0xffead0ff, 355 .tune1 = 0x25501d0, 356 } 357 }, 358 { 359 .speedo_id = 5, 360 .process_id = 0, 361 .min_millivolts = 818, 362 .max_millivolts = 1227, 363 CPU_CVB_TABLE, 364 .cpu_dfll_data = { 365 .tune0_low = 0xffead0ff, 366 .tune0_high = 0xffead0ff, 367 .tune1 = 0x20091d9, 368 .tune_high_min_millivolts = 864, 369 } 370 }, 371 { 372 .speedo_id = 5, 373 .process_id = 1, 374 .min_millivolts = 818, 375 .max_millivolts = 1227, 376 CPU_CVB_TABLE, 377 .cpu_dfll_data = { 378 .tune0_low = 0xffead0ff, 379 .tune0_high = 0xffead0ff, 380 .tune1 = 0x25501d0, 381 .tune_high_min_millivolts = 864, 382 } 383 }, 384 { 385 .speedo_id = 4, 386 .process_id = -1, 387 .min_millivolts = 918, 388 .max_millivolts = 1113, 389 CPU_CVB_TABLE_XA, 390 .cpu_dfll_data = { 391 .tune0_low = 0xffead0ff, 392 .tune1 = 0x17711BD, 393 } 394 }, 395 { 396 .speedo_id = 3, 397 .process_id = 0, 398 .min_millivolts = 825, 399 .max_millivolts = 1227, 400 CPU_CVB_TABLE_ODN, 401 .cpu_dfll_data = { 402 .tune0_low = 0xffead0ff, 403 .tune0_high = 0xffead0ff, 404 .tune1 = 0x20091d9, 405 .tune_high_min_millivolts = 864, 406 } 407 }, 408 { 409 .speedo_id = 3, 410 .process_id = 1, 411 .min_millivolts = 825, 412 .max_millivolts = 1227, 413 CPU_CVB_TABLE_ODN, 414 .cpu_dfll_data = { 415 .tune0_low = 0xffead0ff, 416 .tune0_high = 0xffead0ff, 417 .tune1 = 0x25501d0, 418 .tune_high_min_millivolts = 864, 419 } 420 }, 421 { 422 .speedo_id = 2, 423 .process_id = 0, 424 .min_millivolts = 870, 425 .max_millivolts = 1227, 426 CPU_CVB_TABLE, 427 .cpu_dfll_data = { 428 .tune0_low = 0xffead0ff, 429 .tune1 = 0x20091d9, 430 } 431 }, 432 { 433 .speedo_id = 2, 434 .process_id = 1, 435 .min_millivolts = 870, 436 .max_millivolts = 1227, 437 CPU_CVB_TABLE, 438 .cpu_dfll_data = { 439 .tune0_low = 0xffead0ff, 440 .tune1 = 0x25501d0, 441 } 442 }, 443 { 444 .speedo_id = 1, 445 .process_id = 0, 446 .min_millivolts = 837, 447 .max_millivolts = 1227, 448 CPU_CVB_TABLE, 449 .cpu_dfll_data = { 450 .tune0_low = 0xffead0ff, 451 .tune0_high = 0xffead0ff, 452 .tune1 = 0x20091d9, 453 .tune_high_min_millivolts = 864, 454 } 455 }, 456 { 457 .speedo_id = 1, 458 .process_id = 1, 459 .min_millivolts = 837, 460 .max_millivolts = 1227, 461 CPU_CVB_TABLE, 462 .cpu_dfll_data = { 463 .tune0_low = 0xffead0ff, 464 .tune0_high = 0xffead0ff, 465 .tune1 = 0x25501d0, 466 .tune_high_min_millivolts = 864, 467 } 468 }, 469 { 470 .speedo_id = 0, 471 .process_id = 0, 472 .min_millivolts = 850, 473 .max_millivolts = 1170, 474 CPU_CVB_TABLE, 475 .cpu_dfll_data = { 476 .tune0_low = 0xffead0ff, 477 .tune0_high = 0xffead0ff, 478 .tune1 = 0x20091d9, 479 .tune_high_min_millivolts = 864, 480 } 481 }, 482 { 483 .speedo_id = 0, 484 .process_id = 1, 485 .min_millivolts = 850, 486 .max_millivolts = 1170, 487 CPU_CVB_TABLE, 488 .cpu_dfll_data = { 489 .tune0_low = 0xffead0ff, 490 .tune0_high = 0xffead0ff, 491 .tune1 = 0x25501d0, 492 .tune_high_min_millivolts = 864, 493 } 494 }, 495 }; 496 497 static const struct dfll_fcpu_data tegra124_dfll_fcpu_data = { 498 .cpu_max_freq_table = tegra124_cpu_max_freq_table, 499 .cpu_max_freq_table_size = ARRAY_SIZE(tegra124_cpu_max_freq_table), 500 .cpu_cvb_tables = tegra124_cpu_cvb_tables, 501 .cpu_cvb_tables_size = ARRAY_SIZE(tegra124_cpu_cvb_tables) 502 }; 503 504 static const struct dfll_fcpu_data tegra210_dfll_fcpu_data = { 505 .cpu_max_freq_table = tegra210_cpu_max_freq_table, 506 .cpu_max_freq_table_size = ARRAY_SIZE(tegra210_cpu_max_freq_table), 507 .cpu_cvb_tables = tegra210_cpu_cvb_tables, 508 .cpu_cvb_tables_size = ARRAY_SIZE(tegra210_cpu_cvb_tables), 509 }; 510 511 static const struct of_device_id tegra124_dfll_fcpu_of_match[] = { 512 { 513 .compatible = "nvidia,tegra124-dfll", 514 .data = &tegra124_dfll_fcpu_data, 515 }, 516 { 517 .compatible = "nvidia,tegra210-dfll", 518 .data = &tegra210_dfll_fcpu_data 519 }, 520 { }, 521 }; 522 523 static void get_alignment_from_dt(struct device *dev, 524 struct rail_alignment *align) 525 { 526 if (of_property_read_u32(dev->of_node, 527 "nvidia,pwm-voltage-step-microvolts", 528 &align->step_uv)) 529 align->step_uv = 0; 530 531 if (of_property_read_u32(dev->of_node, 532 "nvidia,pwm-min-microvolts", 533 &align->offset_uv)) 534 align->offset_uv = 0; 535 } 536 537 static int get_alignment_from_regulator(struct device *dev, 538 struct rail_alignment *align) 539 { 540 struct regulator *reg = regulator_get(dev, "vdd-cpu"); 541 542 if (IS_ERR(reg)) 543 return PTR_ERR(reg); 544 545 align->offset_uv = regulator_list_voltage(reg, 0); 546 align->step_uv = regulator_get_linear_step(reg); 547 548 regulator_put(reg); 549 550 return 0; 551 } 552 553 static int tegra124_dfll_fcpu_probe(struct platform_device *pdev) 554 { 555 int process_id, speedo_id, speedo_value, err; 556 struct tegra_dfll_soc_data *soc; 557 const struct dfll_fcpu_data *fcpu_data; 558 struct rail_alignment align; 559 560 fcpu_data = of_device_get_match_data(&pdev->dev); 561 if (!fcpu_data) 562 return -ENODEV; 563 564 process_id = tegra_sku_info.cpu_process_id; 565 speedo_id = tegra_sku_info.cpu_speedo_id; 566 speedo_value = tegra_sku_info.cpu_speedo_value; 567 568 if (speedo_id >= fcpu_data->cpu_max_freq_table_size) { 569 dev_err(&pdev->dev, "unknown max CPU freq for speedo_id=%d\n", 570 speedo_id); 571 return -ENODEV; 572 } 573 574 soc = devm_kzalloc(&pdev->dev, sizeof(*soc), GFP_KERNEL); 575 if (!soc) 576 return -ENOMEM; 577 578 soc->dev = get_cpu_device(0); 579 if (!soc->dev) { 580 dev_err(&pdev->dev, "no CPU0 device\n"); 581 return -ENODEV; 582 } 583 584 if (of_property_read_bool(pdev->dev.of_node, "nvidia,pwm-to-pmic")) { 585 get_alignment_from_dt(&pdev->dev, &align); 586 } else { 587 err = get_alignment_from_regulator(&pdev->dev, &align); 588 if (err) 589 return err; 590 } 591 592 soc->max_freq = fcpu_data->cpu_max_freq_table[speedo_id]; 593 594 soc->cvb = tegra_cvb_add_opp_table(soc->dev, fcpu_data->cpu_cvb_tables, 595 fcpu_data->cpu_cvb_tables_size, 596 &align, process_id, speedo_id, 597 speedo_value, soc->max_freq); 598 soc->alignment = align; 599 600 if (IS_ERR(soc->cvb)) { 601 dev_err(&pdev->dev, "couldn't add OPP table: %ld\n", 602 PTR_ERR(soc->cvb)); 603 return PTR_ERR(soc->cvb); 604 } 605 606 err = tegra_dfll_register(pdev, soc); 607 if (err < 0) { 608 tegra_cvb_remove_opp_table(soc->dev, soc->cvb, soc->max_freq); 609 return err; 610 } 611 612 return 0; 613 } 614 615 static void tegra124_dfll_fcpu_remove(struct platform_device *pdev) 616 { 617 struct tegra_dfll_soc_data *soc; 618 619 /* 620 * Note that exiting early here is dangerous as after this function 621 * returns *soc is freed. 622 */ 623 soc = tegra_dfll_unregister(pdev); 624 if (IS_ERR(soc)) 625 return; 626 627 tegra_cvb_remove_opp_table(soc->dev, soc->cvb, soc->max_freq); 628 } 629 630 static const struct dev_pm_ops tegra124_dfll_pm_ops = { 631 SET_RUNTIME_PM_OPS(tegra_dfll_runtime_suspend, 632 tegra_dfll_runtime_resume, NULL) 633 SET_SYSTEM_SLEEP_PM_OPS(tegra_dfll_suspend, tegra_dfll_resume) 634 }; 635 636 static struct platform_driver tegra124_dfll_fcpu_driver = { 637 .probe = tegra124_dfll_fcpu_probe, 638 .remove_new = tegra124_dfll_fcpu_remove, 639 .driver = { 640 .name = "tegra124-dfll", 641 .of_match_table = tegra124_dfll_fcpu_of_match, 642 .pm = &tegra124_dfll_pm_ops, 643 }, 644 }; 645 builtin_platform_driver(tegra124_dfll_fcpu_driver); 646