1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2020, The Linux Foundation. All rights reserved. 4 */ 5 6 #include <linux/clk.h> 7 #include <linux/delay.h> 8 #include <linux/err.h> 9 #include <linux/io.h> 10 #include <linux/kernel.h> 11 #include <linux/module.h> 12 #include <linux/of.h> 13 #include <linux/of_device.h> 14 #include <linux/phy/phy.h> 15 #include <linux/platform_device.h> 16 #include <linux/regmap.h> 17 #include <linux/regulator/consumer.h> 18 #include <linux/reset.h> 19 #include <linux/slab.h> 20 21 #define USB2_PHY_USB_PHY_UTMI_CTRL0 (0x3c) 22 #define SLEEPM BIT(0) 23 #define OPMODE_MASK GENMASK(4, 3) 24 #define OPMODE_NORMAL (0x00) 25 #define OPMODE_NONDRIVING BIT(3) 26 #define TERMSEL BIT(5) 27 28 #define USB2_PHY_USB_PHY_UTMI_CTRL1 (0x40) 29 #define XCVRSEL BIT(0) 30 31 #define USB2_PHY_USB_PHY_UTMI_CTRL5 (0x50) 32 #define POR BIT(1) 33 34 #define USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON0 (0x54) 35 #define SIDDQ BIT(2) 36 #define RETENABLEN BIT(3) 37 #define FSEL_MASK GENMASK(6, 4) 38 #define FSEL_DEFAULT (0x3 << 4) 39 40 #define USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON1 (0x58) 41 #define VBUSVLDEXTSEL0 BIT(4) 42 #define PLLBTUNE BIT(5) 43 44 #define USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON2 (0x5c) 45 #define VREGBYPASS BIT(0) 46 47 #define USB2_PHY_USB_PHY_HS_PHY_CTRL1 (0x60) 48 #define VBUSVLDEXT0 BIT(0) 49 50 #define USB2_PHY_USB_PHY_HS_PHY_CTRL2 (0x64) 51 #define USB2_AUTO_RESUME BIT(0) 52 #define USB2_SUSPEND_N BIT(2) 53 #define USB2_SUSPEND_N_SEL BIT(3) 54 55 #define USB2_PHY_USB_PHY_HS_PHY_OVERRIDE_X0 (0x6c) 56 #define USB2_PHY_USB_PHY_HS_PHY_OVERRIDE_X1 (0x70) 57 #define USB2_PHY_USB_PHY_HS_PHY_OVERRIDE_X2 (0x74) 58 #define USB2_PHY_USB_PHY_HS_PHY_OVERRIDE_X3 (0x78) 59 #define PARAM_OVRD_MASK 0xFF 60 61 #define USB2_PHY_USB_PHY_CFG0 (0x94) 62 #define UTMI_PHY_DATAPATH_CTRL_OVERRIDE_EN BIT(0) 63 #define UTMI_PHY_CMN_CTRL_OVERRIDE_EN BIT(1) 64 65 #define USB2_PHY_USB_PHY_REFCLK_CTRL (0xa0) 66 #define REFCLK_SEL_MASK GENMASK(1, 0) 67 #define REFCLK_SEL_DEFAULT (0x2 << 0) 68 69 #define HS_DISCONNECT_MASK GENMASK(2, 0) 70 #define SQUELCH_DETECTOR_MASK GENMASK(7, 5) 71 72 #define HS_AMPLITUDE_MASK GENMASK(3, 0) 73 #define PREEMPHASIS_DURATION_MASK BIT(5) 74 #define PREEMPHASIS_AMPLITUDE_MASK GENMASK(7, 6) 75 76 #define HS_RISE_FALL_MASK GENMASK(1, 0) 77 #define HS_CROSSOVER_VOLTAGE_MASK GENMASK(3, 2) 78 #define HS_OUTPUT_IMPEDANCE_MASK GENMASK(5, 4) 79 80 #define LS_FS_OUTPUT_IMPEDANCE_MASK GENMASK(3, 0) 81 82 static const char * const qcom_snps_hsphy_vreg_names[] = { 83 "vdda-pll", "vdda33", "vdda18", 84 }; 85 86 #define SNPS_HS_NUM_VREGS ARRAY_SIZE(qcom_snps_hsphy_vreg_names) 87 88 struct override_param { 89 s32 value; 90 u8 reg_val; 91 }; 92 93 struct override_param_map { 94 const char *prop_name; 95 const struct override_param *param_table; 96 u8 table_size; 97 u8 reg_offset; 98 u8 param_mask; 99 }; 100 101 struct phy_override_seq { 102 bool need_update; 103 u8 offset; 104 u8 value; 105 u8 mask; 106 }; 107 108 #define NUM_HSPHY_TUNING_PARAMS (9) 109 110 /** 111 * struct qcom_snps_hsphy - snps hs phy attributes 112 * 113 * @phy: generic phy 114 * @base: iomapped memory space for snps hs phy 115 * 116 * @cfg_ahb_clk: AHB2PHY interface clock 117 * @ref_clk: phy reference clock 118 * @phy_reset: phy reset control 119 * @vregs: regulator supplies bulk data 120 * @phy_initialized: if PHY has been initialized correctly 121 * @mode: contains the current mode the PHY is in 122 * @update_seq_cfg: tuning parameters for phy init 123 */ 124 struct qcom_snps_hsphy { 125 struct phy *phy; 126 void __iomem *base; 127 128 struct clk *cfg_ahb_clk; 129 struct clk *ref_clk; 130 struct reset_control *phy_reset; 131 struct regulator_bulk_data vregs[SNPS_HS_NUM_VREGS]; 132 133 bool phy_initialized; 134 enum phy_mode mode; 135 struct phy_override_seq update_seq_cfg[NUM_HSPHY_TUNING_PARAMS]; 136 }; 137 138 static inline void qcom_snps_hsphy_write_mask(void __iomem *base, u32 offset, 139 u32 mask, u32 val) 140 { 141 u32 reg; 142 143 reg = readl_relaxed(base + offset); 144 reg &= ~mask; 145 reg |= val & mask; 146 writel_relaxed(reg, base + offset); 147 148 /* Ensure above write is completed */ 149 readl_relaxed(base + offset); 150 } 151 152 static int qcom_snps_hsphy_suspend(struct qcom_snps_hsphy *hsphy) 153 { 154 dev_dbg(&hsphy->phy->dev, "Suspend QCOM SNPS PHY\n"); 155 156 if (hsphy->mode == PHY_MODE_USB_HOST) { 157 /* Enable auto-resume to meet remote wakeup timing */ 158 qcom_snps_hsphy_write_mask(hsphy->base, 159 USB2_PHY_USB_PHY_HS_PHY_CTRL2, 160 USB2_AUTO_RESUME, 161 USB2_AUTO_RESUME); 162 usleep_range(500, 1000); 163 qcom_snps_hsphy_write_mask(hsphy->base, 164 USB2_PHY_USB_PHY_HS_PHY_CTRL2, 165 0, USB2_AUTO_RESUME); 166 } 167 168 clk_disable_unprepare(hsphy->cfg_ahb_clk); 169 return 0; 170 } 171 172 static int qcom_snps_hsphy_resume(struct qcom_snps_hsphy *hsphy) 173 { 174 int ret; 175 176 dev_dbg(&hsphy->phy->dev, "Resume QCOM SNPS PHY, mode\n"); 177 178 ret = clk_prepare_enable(hsphy->cfg_ahb_clk); 179 if (ret) { 180 dev_err(&hsphy->phy->dev, "failed to enable cfg ahb clock\n"); 181 return ret; 182 } 183 184 return 0; 185 } 186 187 static int __maybe_unused qcom_snps_hsphy_runtime_suspend(struct device *dev) 188 { 189 struct qcom_snps_hsphy *hsphy = dev_get_drvdata(dev); 190 191 if (!hsphy->phy_initialized) 192 return 0; 193 194 qcom_snps_hsphy_suspend(hsphy); 195 return 0; 196 } 197 198 static int __maybe_unused qcom_snps_hsphy_runtime_resume(struct device *dev) 199 { 200 struct qcom_snps_hsphy *hsphy = dev_get_drvdata(dev); 201 202 if (!hsphy->phy_initialized) 203 return 0; 204 205 qcom_snps_hsphy_resume(hsphy); 206 return 0; 207 } 208 209 static int qcom_snps_hsphy_set_mode(struct phy *phy, enum phy_mode mode, 210 int submode) 211 { 212 struct qcom_snps_hsphy *hsphy = phy_get_drvdata(phy); 213 214 hsphy->mode = mode; 215 return 0; 216 } 217 218 static const struct override_param hs_disconnect_sc7280[] = { 219 { -272, 0 }, 220 { 0, 1 }, 221 { 317, 2 }, 222 { 630, 3 }, 223 { 973, 4 }, 224 { 1332, 5 }, 225 { 1743, 6 }, 226 { 2156, 7 }, 227 }; 228 229 static const struct override_param squelch_det_threshold_sc7280[] = { 230 { -2090, 7 }, 231 { -1560, 6 }, 232 { -1030, 5 }, 233 { -530, 4 }, 234 { 0, 3 }, 235 { 530, 2 }, 236 { 1060, 1 }, 237 { 1590, 0 }, 238 }; 239 240 static const struct override_param hs_amplitude_sc7280[] = { 241 { -660, 0 }, 242 { -440, 1 }, 243 { -220, 2 }, 244 { 0, 3 }, 245 { 230, 4 }, 246 { 440, 5 }, 247 { 650, 6 }, 248 { 890, 7 }, 249 { 1110, 8 }, 250 { 1330, 9 }, 251 { 1560, 10 }, 252 { 1780, 11 }, 253 { 2000, 12 }, 254 { 2220, 13 }, 255 { 2430, 14 }, 256 { 2670, 15 }, 257 }; 258 259 static const struct override_param preemphasis_duration_sc7280[] = { 260 { 10000, 1 }, 261 { 20000, 0 }, 262 }; 263 264 static const struct override_param preemphasis_amplitude_sc7280[] = { 265 { 10000, 1 }, 266 { 20000, 2 }, 267 { 30000, 3 }, 268 { 40000, 0 }, 269 }; 270 271 static const struct override_param hs_rise_fall_time_sc7280[] = { 272 { -4100, 3 }, 273 { 0, 2 }, 274 { 2810, 1 }, 275 { 5430, 0 }, 276 }; 277 278 static const struct override_param hs_crossover_voltage_sc7280[] = { 279 { -31000, 1 }, 280 { 0, 3 }, 281 { 28000, 2 }, 282 }; 283 284 static const struct override_param hs_output_impedance_sc7280[] = { 285 { -2300000, 3 }, 286 { 0, 2 }, 287 { 2600000, 1 }, 288 { 6100000, 0 }, 289 }; 290 291 static const struct override_param ls_fs_output_impedance_sc7280[] = { 292 { -1053, 15 }, 293 { -557, 7 }, 294 { 0, 3 }, 295 { 612, 1 }, 296 { 1310, 0 }, 297 }; 298 299 static const struct override_param_map sc7280_snps_7nm_phy[] = { 300 { 301 "qcom,hs-disconnect-bp", 302 hs_disconnect_sc7280, 303 ARRAY_SIZE(hs_disconnect_sc7280), 304 USB2_PHY_USB_PHY_HS_PHY_OVERRIDE_X0, 305 HS_DISCONNECT_MASK 306 }, 307 { 308 "qcom,squelch-detector-bp", 309 squelch_det_threshold_sc7280, 310 ARRAY_SIZE(squelch_det_threshold_sc7280), 311 USB2_PHY_USB_PHY_HS_PHY_OVERRIDE_X0, 312 SQUELCH_DETECTOR_MASK 313 }, 314 { 315 "qcom,hs-amplitude-bp", 316 hs_amplitude_sc7280, 317 ARRAY_SIZE(hs_amplitude_sc7280), 318 USB2_PHY_USB_PHY_HS_PHY_OVERRIDE_X1, 319 HS_AMPLITUDE_MASK 320 }, 321 { 322 "qcom,pre-emphasis-duration-bp", 323 preemphasis_duration_sc7280, 324 ARRAY_SIZE(preemphasis_duration_sc7280), 325 USB2_PHY_USB_PHY_HS_PHY_OVERRIDE_X1, 326 PREEMPHASIS_DURATION_MASK, 327 }, 328 { 329 "qcom,pre-emphasis-amplitude-bp", 330 preemphasis_amplitude_sc7280, 331 ARRAY_SIZE(preemphasis_amplitude_sc7280), 332 USB2_PHY_USB_PHY_HS_PHY_OVERRIDE_X1, 333 PREEMPHASIS_AMPLITUDE_MASK, 334 }, 335 { 336 "qcom,hs-rise-fall-time-bp", 337 hs_rise_fall_time_sc7280, 338 ARRAY_SIZE(hs_rise_fall_time_sc7280), 339 USB2_PHY_USB_PHY_HS_PHY_OVERRIDE_X2, 340 HS_RISE_FALL_MASK 341 }, 342 { 343 "qcom,hs-crossover-voltage-microvolt", 344 hs_crossover_voltage_sc7280, 345 ARRAY_SIZE(hs_crossover_voltage_sc7280), 346 USB2_PHY_USB_PHY_HS_PHY_OVERRIDE_X2, 347 HS_CROSSOVER_VOLTAGE_MASK 348 }, 349 { 350 "qcom,hs-output-impedance-micro-ohms", 351 hs_output_impedance_sc7280, 352 ARRAY_SIZE(hs_output_impedance_sc7280), 353 USB2_PHY_USB_PHY_HS_PHY_OVERRIDE_X2, 354 HS_OUTPUT_IMPEDANCE_MASK, 355 }, 356 { 357 "qcom,ls-fs-output-impedance-bp", 358 ls_fs_output_impedance_sc7280, 359 ARRAY_SIZE(ls_fs_output_impedance_sc7280), 360 USB2_PHY_USB_PHY_HS_PHY_OVERRIDE_X3, 361 LS_FS_OUTPUT_IMPEDANCE_MASK, 362 }, 363 {}, 364 }; 365 366 static int qcom_snps_hsphy_init(struct phy *phy) 367 { 368 struct qcom_snps_hsphy *hsphy = phy_get_drvdata(phy); 369 int ret, i; 370 371 dev_vdbg(&phy->dev, "%s(): Initializing SNPS HS phy\n", __func__); 372 373 ret = regulator_bulk_enable(ARRAY_SIZE(hsphy->vregs), hsphy->vregs); 374 if (ret) 375 return ret; 376 377 ret = clk_prepare_enable(hsphy->cfg_ahb_clk); 378 if (ret) { 379 dev_err(&phy->dev, "failed to enable cfg ahb clock, %d\n", ret); 380 goto poweroff_phy; 381 } 382 383 ret = reset_control_assert(hsphy->phy_reset); 384 if (ret) { 385 dev_err(&phy->dev, "failed to assert phy_reset, %d\n", ret); 386 goto disable_ahb_clk; 387 } 388 389 usleep_range(100, 150); 390 391 ret = reset_control_deassert(hsphy->phy_reset); 392 if (ret) { 393 dev_err(&phy->dev, "failed to de-assert phy_reset, %d\n", ret); 394 goto disable_ahb_clk; 395 } 396 397 qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_CFG0, 398 UTMI_PHY_CMN_CTRL_OVERRIDE_EN, 399 UTMI_PHY_CMN_CTRL_OVERRIDE_EN); 400 qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_UTMI_CTRL5, 401 POR, POR); 402 qcom_snps_hsphy_write_mask(hsphy->base, 403 USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON0, 404 FSEL_MASK, 0); 405 qcom_snps_hsphy_write_mask(hsphy->base, 406 USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON1, 407 PLLBTUNE, PLLBTUNE); 408 qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_REFCLK_CTRL, 409 REFCLK_SEL_DEFAULT, REFCLK_SEL_MASK); 410 qcom_snps_hsphy_write_mask(hsphy->base, 411 USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON1, 412 VBUSVLDEXTSEL0, VBUSVLDEXTSEL0); 413 qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_HS_PHY_CTRL1, 414 VBUSVLDEXT0, VBUSVLDEXT0); 415 416 for (i = 0; i < ARRAY_SIZE(hsphy->update_seq_cfg); i++) { 417 if (hsphy->update_seq_cfg[i].need_update) 418 qcom_snps_hsphy_write_mask(hsphy->base, 419 hsphy->update_seq_cfg[i].offset, 420 hsphy->update_seq_cfg[i].mask, 421 hsphy->update_seq_cfg[i].value); 422 } 423 424 qcom_snps_hsphy_write_mask(hsphy->base, 425 USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON2, 426 VREGBYPASS, VREGBYPASS); 427 428 qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_HS_PHY_CTRL2, 429 USB2_SUSPEND_N_SEL | USB2_SUSPEND_N, 430 USB2_SUSPEND_N_SEL | USB2_SUSPEND_N); 431 432 qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_UTMI_CTRL0, 433 SLEEPM, SLEEPM); 434 435 qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_HS_PHY_CTRL_COMMON0, 436 SIDDQ, 0); 437 438 qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_UTMI_CTRL5, 439 POR, 0); 440 441 qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_HS_PHY_CTRL2, 442 USB2_SUSPEND_N_SEL, 0); 443 444 qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_CFG0, 445 UTMI_PHY_CMN_CTRL_OVERRIDE_EN, 0); 446 447 hsphy->phy_initialized = true; 448 449 return 0; 450 451 disable_ahb_clk: 452 clk_disable_unprepare(hsphy->cfg_ahb_clk); 453 poweroff_phy: 454 regulator_bulk_disable(ARRAY_SIZE(hsphy->vregs), hsphy->vregs); 455 456 return ret; 457 } 458 459 static int qcom_snps_hsphy_exit(struct phy *phy) 460 { 461 struct qcom_snps_hsphy *hsphy = phy_get_drvdata(phy); 462 463 reset_control_assert(hsphy->phy_reset); 464 clk_disable_unprepare(hsphy->cfg_ahb_clk); 465 regulator_bulk_disable(ARRAY_SIZE(hsphy->vregs), hsphy->vregs); 466 hsphy->phy_initialized = false; 467 468 return 0; 469 } 470 471 static const struct phy_ops qcom_snps_hsphy_gen_ops = { 472 .init = qcom_snps_hsphy_init, 473 .exit = qcom_snps_hsphy_exit, 474 .set_mode = qcom_snps_hsphy_set_mode, 475 .owner = THIS_MODULE, 476 }; 477 478 static const struct of_device_id qcom_snps_hsphy_of_match_table[] = { 479 { .compatible = "qcom,sm8150-usb-hs-phy", }, 480 { .compatible = "qcom,usb-snps-hs-5nm-phy", }, 481 { 482 .compatible = "qcom,usb-snps-hs-7nm-phy", 483 .data = &sc7280_snps_7nm_phy, 484 }, 485 { .compatible = "qcom,usb-snps-femto-v2-phy", }, 486 { } 487 }; 488 MODULE_DEVICE_TABLE(of, qcom_snps_hsphy_of_match_table); 489 490 static const struct dev_pm_ops qcom_snps_hsphy_pm_ops = { 491 SET_RUNTIME_PM_OPS(qcom_snps_hsphy_runtime_suspend, 492 qcom_snps_hsphy_runtime_resume, NULL) 493 }; 494 495 static void qcom_snps_hsphy_override_param_update_val( 496 const struct override_param_map map, 497 s32 dt_val, struct phy_override_seq *seq_entry) 498 { 499 int i; 500 501 /* 502 * Param table for each param is in increasing order 503 * of dt values. We need to iterate over the list to 504 * select the entry that matches the dt value and pick 505 * up the corresponding register value. 506 */ 507 for (i = 0; i < map.table_size - 1; i++) { 508 if (map.param_table[i].value == dt_val) 509 break; 510 } 511 512 seq_entry->need_update = true; 513 seq_entry->offset = map.reg_offset; 514 seq_entry->mask = map.param_mask; 515 seq_entry->value = map.param_table[i].reg_val << __ffs(map.param_mask); 516 } 517 518 static void qcom_snps_hsphy_read_override_param_seq(struct device *dev) 519 { 520 struct device_node *node = dev->of_node; 521 s32 val; 522 int ret, i; 523 struct qcom_snps_hsphy *hsphy; 524 const struct override_param_map *cfg = of_device_get_match_data(dev); 525 526 if (!cfg) 527 return; 528 529 hsphy = dev_get_drvdata(dev); 530 531 for (i = 0; cfg[i].prop_name != NULL; i++) { 532 ret = of_property_read_s32(node, cfg[i].prop_name, &val); 533 if (ret) 534 continue; 535 536 qcom_snps_hsphy_override_param_update_val(cfg[i], val, 537 &hsphy->update_seq_cfg[i]); 538 dev_dbg(&hsphy->phy->dev, "Read param: %s dt_val: %d reg_val: 0x%x\n", 539 cfg[i].prop_name, val, hsphy->update_seq_cfg[i].value); 540 541 } 542 } 543 544 static int qcom_snps_hsphy_probe(struct platform_device *pdev) 545 { 546 struct device *dev = &pdev->dev; 547 struct qcom_snps_hsphy *hsphy; 548 struct phy_provider *phy_provider; 549 struct phy *generic_phy; 550 int ret, i; 551 int num; 552 553 hsphy = devm_kzalloc(dev, sizeof(*hsphy), GFP_KERNEL); 554 if (!hsphy) 555 return -ENOMEM; 556 557 hsphy->base = devm_platform_ioremap_resource(pdev, 0); 558 if (IS_ERR(hsphy->base)) 559 return PTR_ERR(hsphy->base); 560 561 hsphy->ref_clk = devm_clk_get(dev, "ref"); 562 if (IS_ERR(hsphy->ref_clk)) 563 return dev_err_probe(dev, PTR_ERR(hsphy->ref_clk), 564 "failed to get ref clk\n"); 565 566 hsphy->phy_reset = devm_reset_control_get_exclusive(&pdev->dev, NULL); 567 if (IS_ERR(hsphy->phy_reset)) { 568 dev_err(dev, "failed to get phy core reset\n"); 569 return PTR_ERR(hsphy->phy_reset); 570 } 571 572 num = ARRAY_SIZE(hsphy->vregs); 573 for (i = 0; i < num; i++) 574 hsphy->vregs[i].supply = qcom_snps_hsphy_vreg_names[i]; 575 576 ret = devm_regulator_bulk_get(dev, num, hsphy->vregs); 577 if (ret) 578 return dev_err_probe(dev, ret, 579 "failed to get regulator supplies\n"); 580 581 pm_runtime_set_active(dev); 582 pm_runtime_enable(dev); 583 /* 584 * Prevent runtime pm from being ON by default. Users can enable 585 * it using power/control in sysfs. 586 */ 587 pm_runtime_forbid(dev); 588 589 generic_phy = devm_phy_create(dev, NULL, &qcom_snps_hsphy_gen_ops); 590 if (IS_ERR(generic_phy)) { 591 ret = PTR_ERR(generic_phy); 592 dev_err(dev, "failed to create phy, %d\n", ret); 593 return ret; 594 } 595 hsphy->phy = generic_phy; 596 597 dev_set_drvdata(dev, hsphy); 598 phy_set_drvdata(generic_phy, hsphy); 599 qcom_snps_hsphy_read_override_param_seq(dev); 600 601 phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate); 602 if (!IS_ERR(phy_provider)) 603 dev_dbg(dev, "Registered Qcom-SNPS HS phy\n"); 604 else 605 pm_runtime_disable(dev); 606 607 return PTR_ERR_OR_ZERO(phy_provider); 608 } 609 610 static struct platform_driver qcom_snps_hsphy_driver = { 611 .probe = qcom_snps_hsphy_probe, 612 .driver = { 613 .name = "qcom-snps-hs-femto-v2-phy", 614 .pm = &qcom_snps_hsphy_pm_ops, 615 .of_match_table = qcom_snps_hsphy_of_match_table, 616 }, 617 }; 618 619 module_platform_driver(qcom_snps_hsphy_driver); 620 621 MODULE_DESCRIPTION("Qualcomm SNPS FEMTO USB HS PHY V2 driver"); 622 MODULE_LICENSE("GPL v2"); 623