1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Copyright 2012 Freescale Semiconductor, Inc. 4 * Copyright (C) 2012 Marek Vasut <marex@denx.de> 5 * on behalf of DENX Software Engineering GmbH 6 */ 7 8 #include <linux/module.h> 9 #include <linux/of_platform.h> 10 #include <linux/platform_device.h> 11 #include <linux/pm_runtime.h> 12 #include <linux/usb/chipidea.h> 13 #include <linux/usb/of.h> 14 #include <linux/clk.h> 15 #include <linux/pinctrl/consumer.h> 16 #include <linux/pm_qos.h> 17 18 #include "ci.h" 19 #include "ci_hdrc_imx.h" 20 21 struct ci_hdrc_imx_platform_flag { 22 unsigned int flags; 23 }; 24 25 static const struct ci_hdrc_imx_platform_flag imx23_usb_data = { 26 .flags = CI_HDRC_TURN_VBUS_EARLY_ON | 27 CI_HDRC_DISABLE_STREAMING, 28 }; 29 30 static const struct ci_hdrc_imx_platform_flag imx27_usb_data = { 31 .flags = CI_HDRC_DISABLE_STREAMING, 32 }; 33 34 static const struct ci_hdrc_imx_platform_flag imx28_usb_data = { 35 .flags = CI_HDRC_IMX28_WRITE_FIX | 36 CI_HDRC_TURN_VBUS_EARLY_ON | 37 CI_HDRC_DISABLE_STREAMING, 38 }; 39 40 static const struct ci_hdrc_imx_platform_flag imx6q_usb_data = { 41 .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | 42 CI_HDRC_TURN_VBUS_EARLY_ON | 43 CI_HDRC_DISABLE_STREAMING, 44 }; 45 46 static const struct ci_hdrc_imx_platform_flag imx6sl_usb_data = { 47 .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | 48 CI_HDRC_TURN_VBUS_EARLY_ON | 49 CI_HDRC_DISABLE_HOST_STREAMING, 50 }; 51 52 static const struct ci_hdrc_imx_platform_flag imx6sx_usb_data = { 53 .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | 54 CI_HDRC_TURN_VBUS_EARLY_ON | 55 CI_HDRC_DISABLE_HOST_STREAMING, 56 }; 57 58 static const struct ci_hdrc_imx_platform_flag imx6ul_usb_data = { 59 .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | 60 CI_HDRC_TURN_VBUS_EARLY_ON | 61 CI_HDRC_DISABLE_DEVICE_STREAMING, 62 }; 63 64 static const struct ci_hdrc_imx_platform_flag imx7d_usb_data = { 65 .flags = CI_HDRC_SUPPORTS_RUNTIME_PM, 66 }; 67 68 static const struct ci_hdrc_imx_platform_flag imx7ulp_usb_data = { 69 .flags = CI_HDRC_SUPPORTS_RUNTIME_PM | 70 CI_HDRC_PMQOS, 71 }; 72 73 static const struct of_device_id ci_hdrc_imx_dt_ids[] = { 74 { .compatible = "fsl,imx23-usb", .data = &imx23_usb_data}, 75 { .compatible = "fsl,imx28-usb", .data = &imx28_usb_data}, 76 { .compatible = "fsl,imx27-usb", .data = &imx27_usb_data}, 77 { .compatible = "fsl,imx6q-usb", .data = &imx6q_usb_data}, 78 { .compatible = "fsl,imx6sl-usb", .data = &imx6sl_usb_data}, 79 { .compatible = "fsl,imx6sx-usb", .data = &imx6sx_usb_data}, 80 { .compatible = "fsl,imx6ul-usb", .data = &imx6ul_usb_data}, 81 { .compatible = "fsl,imx7d-usb", .data = &imx7d_usb_data}, 82 { .compatible = "fsl,imx7ulp-usb", .data = &imx7ulp_usb_data}, 83 { /* sentinel */ } 84 }; 85 MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids); 86 87 struct ci_hdrc_imx_data { 88 struct usb_phy *phy; 89 struct platform_device *ci_pdev; 90 struct clk *clk; 91 struct imx_usbmisc_data *usbmisc_data; 92 bool supports_runtime_pm; 93 bool override_phy_control; 94 bool in_lpm; 95 struct pinctrl *pinctrl; 96 struct pinctrl_state *pinctrl_hsic_active; 97 struct regulator *hsic_pad_regulator; 98 /* SoC before i.mx6 (except imx23/imx28) needs three clks */ 99 bool need_three_clks; 100 struct clk *clk_ipg; 101 struct clk *clk_ahb; 102 struct clk *clk_per; 103 /* --------------------------------- */ 104 struct pm_qos_request pm_qos_req; 105 const struct ci_hdrc_imx_platform_flag *plat_data; 106 }; 107 108 /* Common functions shared by usbmisc drivers */ 109 110 static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev) 111 { 112 struct platform_device *misc_pdev; 113 struct device_node *np = dev->of_node; 114 struct of_phandle_args args; 115 struct imx_usbmisc_data *data; 116 int ret; 117 118 /* 119 * In case the fsl,usbmisc property is not present this device doesn't 120 * need usbmisc. Return NULL (which is no error here) 121 */ 122 if (!of_get_property(np, "fsl,usbmisc", NULL)) 123 return NULL; 124 125 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); 126 if (!data) 127 return ERR_PTR(-ENOMEM); 128 129 ret = of_parse_phandle_with_args(np, "fsl,usbmisc", "#index-cells", 130 0, &args); 131 if (ret) { 132 dev_err(dev, "Failed to parse property fsl,usbmisc, errno %d\n", 133 ret); 134 return ERR_PTR(ret); 135 } 136 137 data->index = args.args[0]; 138 139 misc_pdev = of_find_device_by_node(args.np); 140 of_node_put(args.np); 141 142 if (!misc_pdev) 143 return ERR_PTR(-EPROBE_DEFER); 144 145 if (!platform_get_drvdata(misc_pdev)) { 146 put_device(&misc_pdev->dev); 147 return ERR_PTR(-EPROBE_DEFER); 148 } 149 data->dev = &misc_pdev->dev; 150 151 /* 152 * Check the various over current related properties. If over current 153 * detection is disabled we're not interested in the polarity. 154 */ 155 if (of_property_read_bool(np, "disable-over-current")) { 156 data->disable_oc = 1; 157 } else if (of_property_read_bool(np, "over-current-active-high")) { 158 data->oc_pol_active_low = 0; 159 data->oc_pol_configured = 1; 160 } else if (of_property_read_bool(np, "over-current-active-low")) { 161 data->oc_pol_active_low = 1; 162 data->oc_pol_configured = 1; 163 } else { 164 dev_warn(dev, "No over current polarity defined\n"); 165 } 166 167 data->pwr_pol = of_property_read_bool(np, "power-active-high"); 168 data->evdo = of_property_read_bool(np, "external-vbus-divider"); 169 170 if (of_usb_get_phy_mode(np) == USBPHY_INTERFACE_MODE_ULPI) 171 data->ulpi = 1; 172 173 of_property_read_u32(np, "samsung,picophy-pre-emp-curr-control", 174 &data->emp_curr_control); 175 of_property_read_u32(np, "samsung,picophy-dc-vol-level-adjust", 176 &data->dc_vol_level_adjust); 177 178 return data; 179 } 180 181 /* End of common functions shared by usbmisc drivers*/ 182 static int imx_get_clks(struct device *dev) 183 { 184 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 185 int ret = 0; 186 187 data->clk_ipg = devm_clk_get(dev, "ipg"); 188 if (IS_ERR(data->clk_ipg)) { 189 /* If the platform only needs one clocks */ 190 data->clk = devm_clk_get(dev, NULL); 191 if (IS_ERR(data->clk)) { 192 ret = PTR_ERR(data->clk); 193 dev_err(dev, 194 "Failed to get clks, err=%ld,%ld\n", 195 PTR_ERR(data->clk), PTR_ERR(data->clk_ipg)); 196 return ret; 197 } 198 return ret; 199 } 200 201 data->clk_ahb = devm_clk_get(dev, "ahb"); 202 if (IS_ERR(data->clk_ahb)) { 203 ret = PTR_ERR(data->clk_ahb); 204 dev_err(dev, 205 "Failed to get ahb clock, err=%d\n", ret); 206 return ret; 207 } 208 209 data->clk_per = devm_clk_get(dev, "per"); 210 if (IS_ERR(data->clk_per)) { 211 ret = PTR_ERR(data->clk_per); 212 dev_err(dev, 213 "Failed to get per clock, err=%d\n", ret); 214 return ret; 215 } 216 217 data->need_three_clks = true; 218 return ret; 219 } 220 221 static int imx_prepare_enable_clks(struct device *dev) 222 { 223 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 224 int ret = 0; 225 226 if (data->need_three_clks) { 227 ret = clk_prepare_enable(data->clk_ipg); 228 if (ret) { 229 dev_err(dev, 230 "Failed to prepare/enable ipg clk, err=%d\n", 231 ret); 232 return ret; 233 } 234 235 ret = clk_prepare_enable(data->clk_ahb); 236 if (ret) { 237 dev_err(dev, 238 "Failed to prepare/enable ahb clk, err=%d\n", 239 ret); 240 clk_disable_unprepare(data->clk_ipg); 241 return ret; 242 } 243 244 ret = clk_prepare_enable(data->clk_per); 245 if (ret) { 246 dev_err(dev, 247 "Failed to prepare/enable per clk, err=%d\n", 248 ret); 249 clk_disable_unprepare(data->clk_ahb); 250 clk_disable_unprepare(data->clk_ipg); 251 return ret; 252 } 253 } else { 254 ret = clk_prepare_enable(data->clk); 255 if (ret) { 256 dev_err(dev, 257 "Failed to prepare/enable clk, err=%d\n", 258 ret); 259 return ret; 260 } 261 } 262 263 return ret; 264 } 265 266 static void imx_disable_unprepare_clks(struct device *dev) 267 { 268 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 269 270 if (data->need_three_clks) { 271 clk_disable_unprepare(data->clk_per); 272 clk_disable_unprepare(data->clk_ahb); 273 clk_disable_unprepare(data->clk_ipg); 274 } else { 275 clk_disable_unprepare(data->clk); 276 } 277 } 278 279 static int ci_hdrc_imx_notify_event(struct ci_hdrc *ci, unsigned int event) 280 { 281 struct device *dev = ci->dev->parent; 282 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 283 int ret = 0; 284 struct imx_usbmisc_data *mdata = data->usbmisc_data; 285 286 switch (event) { 287 case CI_HDRC_IMX_HSIC_ACTIVE_EVENT: 288 if (data->pinctrl) { 289 ret = pinctrl_select_state(data->pinctrl, 290 data->pinctrl_hsic_active); 291 if (ret) 292 dev_err(dev, 293 "hsic_active select failed, err=%d\n", 294 ret); 295 } 296 break; 297 case CI_HDRC_IMX_HSIC_SUSPEND_EVENT: 298 ret = imx_usbmisc_hsic_set_connect(mdata); 299 if (ret) 300 dev_err(dev, 301 "hsic_set_connect failed, err=%d\n", ret); 302 break; 303 case CI_HDRC_CONTROLLER_VBUS_EVENT: 304 if (ci->vbus_active) 305 ret = imx_usbmisc_charger_detection(mdata, true); 306 else 307 ret = imx_usbmisc_charger_detection(mdata, false); 308 if (ci->usb_phy) 309 schedule_work(&ci->usb_phy->chg_work); 310 break; 311 default: 312 break; 313 } 314 315 return ret; 316 } 317 318 static int ci_hdrc_imx_probe(struct platform_device *pdev) 319 { 320 struct ci_hdrc_imx_data *data; 321 struct ci_hdrc_platform_data pdata = { 322 .name = dev_name(&pdev->dev), 323 .capoffset = DEF_CAPOFFSET, 324 .notify_event = ci_hdrc_imx_notify_event, 325 }; 326 int ret; 327 const struct ci_hdrc_imx_platform_flag *imx_platform_flag; 328 struct device_node *np = pdev->dev.of_node; 329 struct device *dev = &pdev->dev; 330 331 imx_platform_flag = of_device_get_match_data(&pdev->dev); 332 333 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); 334 if (!data) 335 return -ENOMEM; 336 337 data->plat_data = imx_platform_flag; 338 pdata.flags |= imx_platform_flag->flags; 339 platform_set_drvdata(pdev, data); 340 data->usbmisc_data = usbmisc_get_init_data(dev); 341 if (IS_ERR(data->usbmisc_data)) 342 return PTR_ERR(data->usbmisc_data); 343 344 if ((of_usb_get_phy_mode(dev->of_node) == USBPHY_INTERFACE_MODE_HSIC) 345 && data->usbmisc_data) { 346 pdata.flags |= CI_HDRC_IMX_IS_HSIC; 347 data->usbmisc_data->hsic = 1; 348 data->pinctrl = devm_pinctrl_get(dev); 349 if (PTR_ERR(data->pinctrl) == -ENODEV) 350 data->pinctrl = NULL; 351 else if (IS_ERR(data->pinctrl)) 352 return dev_err_probe(dev, PTR_ERR(data->pinctrl), 353 "pinctrl get failed\n"); 354 355 data->hsic_pad_regulator = 356 devm_regulator_get_optional(dev, "hsic"); 357 if (PTR_ERR(data->hsic_pad_regulator) == -ENODEV) { 358 /* no pad regulator is needed */ 359 data->hsic_pad_regulator = NULL; 360 } else if (IS_ERR(data->hsic_pad_regulator)) 361 return dev_err_probe(dev, PTR_ERR(data->hsic_pad_regulator), 362 "Get HSIC pad regulator error\n"); 363 364 if (data->hsic_pad_regulator) { 365 ret = regulator_enable(data->hsic_pad_regulator); 366 if (ret) { 367 dev_err(dev, 368 "Failed to enable HSIC pad regulator\n"); 369 return ret; 370 } 371 } 372 } 373 374 /* HSIC pinctrl handling */ 375 if (data->pinctrl) { 376 struct pinctrl_state *pinctrl_hsic_idle; 377 378 pinctrl_hsic_idle = pinctrl_lookup_state(data->pinctrl, "idle"); 379 if (IS_ERR(pinctrl_hsic_idle)) { 380 dev_err(dev, 381 "pinctrl_hsic_idle lookup failed, err=%ld\n", 382 PTR_ERR(pinctrl_hsic_idle)); 383 return PTR_ERR(pinctrl_hsic_idle); 384 } 385 386 ret = pinctrl_select_state(data->pinctrl, pinctrl_hsic_idle); 387 if (ret) { 388 dev_err(dev, "hsic_idle select failed, err=%d\n", ret); 389 return ret; 390 } 391 392 data->pinctrl_hsic_active = pinctrl_lookup_state(data->pinctrl, 393 "active"); 394 if (IS_ERR(data->pinctrl_hsic_active)) { 395 dev_err(dev, 396 "pinctrl_hsic_active lookup failed, err=%ld\n", 397 PTR_ERR(data->pinctrl_hsic_active)); 398 return PTR_ERR(data->pinctrl_hsic_active); 399 } 400 } 401 402 if (pdata.flags & CI_HDRC_PMQOS) 403 cpu_latency_qos_add_request(&data->pm_qos_req, 0); 404 405 ret = imx_get_clks(dev); 406 if (ret) 407 goto disable_hsic_regulator; 408 409 ret = imx_prepare_enable_clks(dev); 410 if (ret) 411 goto disable_hsic_regulator; 412 413 data->phy = devm_usb_get_phy_by_phandle(dev, "fsl,usbphy", 0); 414 if (IS_ERR(data->phy)) { 415 ret = PTR_ERR(data->phy); 416 if (ret != -ENODEV) { 417 dev_err_probe(dev, ret, "Failed to parse fsl,usbphy\n"); 418 goto err_clk; 419 } 420 data->phy = devm_usb_get_phy_by_phandle(dev, "phys", 0); 421 if (IS_ERR(data->phy)) { 422 ret = PTR_ERR(data->phy); 423 if (ret == -ENODEV) { 424 data->phy = NULL; 425 } else { 426 dev_err_probe(dev, ret, "Failed to parse phys\n"); 427 goto err_clk; 428 } 429 } 430 } 431 432 pdata.usb_phy = data->phy; 433 if (data->usbmisc_data) 434 data->usbmisc_data->usb_phy = data->phy; 435 436 if ((of_device_is_compatible(np, "fsl,imx53-usb") || 437 of_device_is_compatible(np, "fsl,imx51-usb")) && pdata.usb_phy && 438 of_usb_get_phy_mode(np) == USBPHY_INTERFACE_MODE_ULPI) { 439 pdata.flags |= CI_HDRC_OVERRIDE_PHY_CONTROL; 440 data->override_phy_control = true; 441 usb_phy_init(pdata.usb_phy); 442 } 443 444 if (pdata.flags & CI_HDRC_SUPPORTS_RUNTIME_PM) 445 data->supports_runtime_pm = true; 446 447 ret = imx_usbmisc_init(data->usbmisc_data); 448 if (ret) { 449 dev_err(dev, "usbmisc init failed, ret=%d\n", ret); 450 goto err_clk; 451 } 452 453 data->ci_pdev = ci_hdrc_add_device(dev, 454 pdev->resource, pdev->num_resources, 455 &pdata); 456 if (IS_ERR(data->ci_pdev)) { 457 ret = PTR_ERR(data->ci_pdev); 458 dev_err_probe(dev, ret, "ci_hdrc_add_device failed\n"); 459 goto err_clk; 460 } 461 462 if (data->usbmisc_data) { 463 if (!IS_ERR(pdata.id_extcon.edev) || 464 of_property_read_bool(np, "usb-role-switch")) 465 data->usbmisc_data->ext_id = 1; 466 467 if (!IS_ERR(pdata.vbus_extcon.edev) || 468 of_property_read_bool(np, "usb-role-switch")) 469 data->usbmisc_data->ext_vbus = 1; 470 471 /* usbmisc needs to know dr mode to choose wakeup setting */ 472 data->usbmisc_data->available_role = 473 ci_hdrc_query_available_role(data->ci_pdev); 474 } 475 476 ret = imx_usbmisc_init_post(data->usbmisc_data); 477 if (ret) { 478 dev_err(dev, "usbmisc post failed, ret=%d\n", ret); 479 goto disable_device; 480 } 481 482 if (data->supports_runtime_pm) { 483 pm_runtime_set_active(dev); 484 pm_runtime_enable(dev); 485 } 486 487 device_set_wakeup_capable(dev, true); 488 489 return 0; 490 491 disable_device: 492 ci_hdrc_remove_device(data->ci_pdev); 493 err_clk: 494 imx_disable_unprepare_clks(dev); 495 disable_hsic_regulator: 496 if (data->hsic_pad_regulator) 497 /* don't overwrite original ret (cf. EPROBE_DEFER) */ 498 regulator_disable(data->hsic_pad_regulator); 499 if (pdata.flags & CI_HDRC_PMQOS) 500 cpu_latency_qos_remove_request(&data->pm_qos_req); 501 data->ci_pdev = NULL; 502 return ret; 503 } 504 505 static int ci_hdrc_imx_remove(struct platform_device *pdev) 506 { 507 struct ci_hdrc_imx_data *data = platform_get_drvdata(pdev); 508 509 if (data->supports_runtime_pm) { 510 pm_runtime_get_sync(&pdev->dev); 511 pm_runtime_disable(&pdev->dev); 512 pm_runtime_put_noidle(&pdev->dev); 513 } 514 if (data->ci_pdev) 515 ci_hdrc_remove_device(data->ci_pdev); 516 if (data->override_phy_control) 517 usb_phy_shutdown(data->phy); 518 if (data->ci_pdev) { 519 imx_disable_unprepare_clks(&pdev->dev); 520 if (data->plat_data->flags & CI_HDRC_PMQOS) 521 cpu_latency_qos_remove_request(&data->pm_qos_req); 522 if (data->hsic_pad_regulator) 523 regulator_disable(data->hsic_pad_regulator); 524 } 525 526 return 0; 527 } 528 529 static void ci_hdrc_imx_shutdown(struct platform_device *pdev) 530 { 531 ci_hdrc_imx_remove(pdev); 532 } 533 534 static int __maybe_unused imx_controller_suspend(struct device *dev, 535 pm_message_t msg) 536 { 537 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 538 int ret = 0; 539 540 dev_dbg(dev, "at %s\n", __func__); 541 542 ret = imx_usbmisc_suspend(data->usbmisc_data, 543 PMSG_IS_AUTO(msg) || device_may_wakeup(dev)); 544 if (ret) { 545 dev_err(dev, 546 "usbmisc suspend failed, ret=%d\n", ret); 547 return ret; 548 } 549 550 imx_disable_unprepare_clks(dev); 551 if (data->plat_data->flags & CI_HDRC_PMQOS) 552 cpu_latency_qos_remove_request(&data->pm_qos_req); 553 554 data->in_lpm = true; 555 556 return 0; 557 } 558 559 static int __maybe_unused imx_controller_resume(struct device *dev, 560 pm_message_t msg) 561 { 562 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 563 int ret = 0; 564 565 dev_dbg(dev, "at %s\n", __func__); 566 567 if (!data->in_lpm) { 568 WARN_ON(1); 569 return 0; 570 } 571 572 if (data->plat_data->flags & CI_HDRC_PMQOS) 573 cpu_latency_qos_add_request(&data->pm_qos_req, 0); 574 575 ret = imx_prepare_enable_clks(dev); 576 if (ret) 577 return ret; 578 579 data->in_lpm = false; 580 581 ret = imx_usbmisc_resume(data->usbmisc_data, 582 PMSG_IS_AUTO(msg) || device_may_wakeup(dev)); 583 if (ret) { 584 dev_err(dev, "usbmisc resume failed, ret=%d\n", ret); 585 goto clk_disable; 586 } 587 588 return 0; 589 590 clk_disable: 591 imx_disable_unprepare_clks(dev); 592 return ret; 593 } 594 595 static int __maybe_unused ci_hdrc_imx_suspend(struct device *dev) 596 { 597 int ret; 598 599 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 600 601 if (data->in_lpm) 602 /* The core's suspend doesn't run */ 603 return 0; 604 605 ret = imx_controller_suspend(dev, PMSG_SUSPEND); 606 if (ret) 607 return ret; 608 609 pinctrl_pm_select_sleep_state(dev); 610 return ret; 611 } 612 613 static int __maybe_unused ci_hdrc_imx_resume(struct device *dev) 614 { 615 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 616 int ret; 617 618 pinctrl_pm_select_default_state(dev); 619 ret = imx_controller_resume(dev, PMSG_RESUME); 620 if (!ret && data->supports_runtime_pm) { 621 pm_runtime_disable(dev); 622 pm_runtime_set_active(dev); 623 pm_runtime_enable(dev); 624 } 625 626 return ret; 627 } 628 629 static int __maybe_unused ci_hdrc_imx_runtime_suspend(struct device *dev) 630 { 631 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 632 633 if (data->in_lpm) { 634 WARN_ON(1); 635 return 0; 636 } 637 638 return imx_controller_suspend(dev, PMSG_AUTO_SUSPEND); 639 } 640 641 static int __maybe_unused ci_hdrc_imx_runtime_resume(struct device *dev) 642 { 643 return imx_controller_resume(dev, PMSG_AUTO_RESUME); 644 } 645 646 static const struct dev_pm_ops ci_hdrc_imx_pm_ops = { 647 SET_SYSTEM_SLEEP_PM_OPS(ci_hdrc_imx_suspend, ci_hdrc_imx_resume) 648 SET_RUNTIME_PM_OPS(ci_hdrc_imx_runtime_suspend, 649 ci_hdrc_imx_runtime_resume, NULL) 650 }; 651 static struct platform_driver ci_hdrc_imx_driver = { 652 .probe = ci_hdrc_imx_probe, 653 .remove = ci_hdrc_imx_remove, 654 .shutdown = ci_hdrc_imx_shutdown, 655 .driver = { 656 .name = "imx_usb", 657 .of_match_table = ci_hdrc_imx_dt_ids, 658 .pm = &ci_hdrc_imx_pm_ops, 659 }, 660 }; 661 662 module_platform_driver(ci_hdrc_imx_driver); 663 664 MODULE_ALIAS("platform:imx-usb"); 665 MODULE_LICENSE("GPL"); 666 MODULE_DESCRIPTION("CI HDRC i.MX USB binding"); 667 MODULE_AUTHOR("Marek Vasut <marex@denx.de>"); 668 MODULE_AUTHOR("Richard Zhao <richard.zhao@freescale.com>"); 669