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 ci_hdrc_imx_platform_flag imx8ulp_usb_data = { 74 .flags = CI_HDRC_SUPPORTS_RUNTIME_PM, 75 }; 76 77 static const struct of_device_id ci_hdrc_imx_dt_ids[] = { 78 { .compatible = "fsl,imx23-usb", .data = &imx23_usb_data}, 79 { .compatible = "fsl,imx28-usb", .data = &imx28_usb_data}, 80 { .compatible = "fsl,imx27-usb", .data = &imx27_usb_data}, 81 { .compatible = "fsl,imx6q-usb", .data = &imx6q_usb_data}, 82 { .compatible = "fsl,imx6sl-usb", .data = &imx6sl_usb_data}, 83 { .compatible = "fsl,imx6sx-usb", .data = &imx6sx_usb_data}, 84 { .compatible = "fsl,imx6ul-usb", .data = &imx6ul_usb_data}, 85 { .compatible = "fsl,imx7d-usb", .data = &imx7d_usb_data}, 86 { .compatible = "fsl,imx7ulp-usb", .data = &imx7ulp_usb_data}, 87 { .compatible = "fsl,imx8ulp-usb", .data = &imx8ulp_usb_data}, 88 { /* sentinel */ } 89 }; 90 MODULE_DEVICE_TABLE(of, ci_hdrc_imx_dt_ids); 91 92 struct ci_hdrc_imx_data { 93 struct usb_phy *phy; 94 struct platform_device *ci_pdev; 95 struct clk *clk; 96 struct imx_usbmisc_data *usbmisc_data; 97 bool supports_runtime_pm; 98 bool override_phy_control; 99 bool in_lpm; 100 struct pinctrl *pinctrl; 101 struct pinctrl_state *pinctrl_hsic_active; 102 struct regulator *hsic_pad_regulator; 103 /* SoC before i.mx6 (except imx23/imx28) needs three clks */ 104 bool need_three_clks; 105 struct clk *clk_ipg; 106 struct clk *clk_ahb; 107 struct clk *clk_per; 108 /* --------------------------------- */ 109 struct pm_qos_request pm_qos_req; 110 const struct ci_hdrc_imx_platform_flag *plat_data; 111 }; 112 113 /* Common functions shared by usbmisc drivers */ 114 115 static struct imx_usbmisc_data *usbmisc_get_init_data(struct device *dev) 116 { 117 struct platform_device *misc_pdev; 118 struct device_node *np = dev->of_node; 119 struct of_phandle_args args; 120 struct imx_usbmisc_data *data; 121 int ret; 122 123 /* 124 * In case the fsl,usbmisc property is not present this device doesn't 125 * need usbmisc. Return NULL (which is no error here) 126 */ 127 if (!of_get_property(np, "fsl,usbmisc", NULL)) 128 return NULL; 129 130 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); 131 if (!data) 132 return ERR_PTR(-ENOMEM); 133 134 ret = of_parse_phandle_with_args(np, "fsl,usbmisc", "#index-cells", 135 0, &args); 136 if (ret) { 137 dev_err(dev, "Failed to parse property fsl,usbmisc, errno %d\n", 138 ret); 139 return ERR_PTR(ret); 140 } 141 142 data->index = args.args[0]; 143 144 misc_pdev = of_find_device_by_node(args.np); 145 of_node_put(args.np); 146 147 if (!misc_pdev) 148 return ERR_PTR(-EPROBE_DEFER); 149 150 if (!platform_get_drvdata(misc_pdev)) { 151 put_device(&misc_pdev->dev); 152 return ERR_PTR(-EPROBE_DEFER); 153 } 154 data->dev = &misc_pdev->dev; 155 156 /* 157 * Check the various over current related properties. If over current 158 * detection is disabled we're not interested in the polarity. 159 */ 160 if (of_property_read_bool(np, "disable-over-current")) { 161 data->disable_oc = 1; 162 } else if (of_property_read_bool(np, "over-current-active-high")) { 163 data->oc_pol_active_low = 0; 164 data->oc_pol_configured = 1; 165 } else if (of_property_read_bool(np, "over-current-active-low")) { 166 data->oc_pol_active_low = 1; 167 data->oc_pol_configured = 1; 168 } else { 169 dev_warn(dev, "No over current polarity defined\n"); 170 } 171 172 data->pwr_pol = of_property_read_bool(np, "power-active-high"); 173 data->evdo = of_property_read_bool(np, "external-vbus-divider"); 174 175 if (of_usb_get_phy_mode(np) == USBPHY_INTERFACE_MODE_ULPI) 176 data->ulpi = 1; 177 178 of_property_read_u32(np, "samsung,picophy-pre-emp-curr-control", 179 &data->emp_curr_control); 180 of_property_read_u32(np, "samsung,picophy-dc-vol-level-adjust", 181 &data->dc_vol_level_adjust); 182 183 return data; 184 } 185 186 /* End of common functions shared by usbmisc drivers*/ 187 static int imx_get_clks(struct device *dev) 188 { 189 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 190 int ret = 0; 191 192 data->clk_ipg = devm_clk_get(dev, "ipg"); 193 if (IS_ERR(data->clk_ipg)) { 194 /* If the platform only needs one clocks */ 195 data->clk = devm_clk_get(dev, NULL); 196 if (IS_ERR(data->clk)) { 197 ret = PTR_ERR(data->clk); 198 dev_err(dev, 199 "Failed to get clks, err=%ld,%ld\n", 200 PTR_ERR(data->clk), PTR_ERR(data->clk_ipg)); 201 return ret; 202 } 203 return ret; 204 } 205 206 data->clk_ahb = devm_clk_get(dev, "ahb"); 207 if (IS_ERR(data->clk_ahb)) { 208 ret = PTR_ERR(data->clk_ahb); 209 dev_err(dev, 210 "Failed to get ahb clock, err=%d\n", ret); 211 return ret; 212 } 213 214 data->clk_per = devm_clk_get(dev, "per"); 215 if (IS_ERR(data->clk_per)) { 216 ret = PTR_ERR(data->clk_per); 217 dev_err(dev, 218 "Failed to get per clock, err=%d\n", ret); 219 return ret; 220 } 221 222 data->need_three_clks = true; 223 return ret; 224 } 225 226 static int imx_prepare_enable_clks(struct device *dev) 227 { 228 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 229 int ret = 0; 230 231 if (data->need_three_clks) { 232 ret = clk_prepare_enable(data->clk_ipg); 233 if (ret) { 234 dev_err(dev, 235 "Failed to prepare/enable ipg clk, err=%d\n", 236 ret); 237 return ret; 238 } 239 240 ret = clk_prepare_enable(data->clk_ahb); 241 if (ret) { 242 dev_err(dev, 243 "Failed to prepare/enable ahb clk, err=%d\n", 244 ret); 245 clk_disable_unprepare(data->clk_ipg); 246 return ret; 247 } 248 249 ret = clk_prepare_enable(data->clk_per); 250 if (ret) { 251 dev_err(dev, 252 "Failed to prepare/enable per clk, err=%d\n", 253 ret); 254 clk_disable_unprepare(data->clk_ahb); 255 clk_disable_unprepare(data->clk_ipg); 256 return ret; 257 } 258 } else { 259 ret = clk_prepare_enable(data->clk); 260 if (ret) { 261 dev_err(dev, 262 "Failed to prepare/enable clk, err=%d\n", 263 ret); 264 return ret; 265 } 266 } 267 268 return ret; 269 } 270 271 static void imx_disable_unprepare_clks(struct device *dev) 272 { 273 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 274 275 if (data->need_three_clks) { 276 clk_disable_unprepare(data->clk_per); 277 clk_disable_unprepare(data->clk_ahb); 278 clk_disable_unprepare(data->clk_ipg); 279 } else { 280 clk_disable_unprepare(data->clk); 281 } 282 } 283 284 static int ci_hdrc_imx_notify_event(struct ci_hdrc *ci, unsigned int event) 285 { 286 struct device *dev = ci->dev->parent; 287 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 288 int ret = 0; 289 struct imx_usbmisc_data *mdata = data->usbmisc_data; 290 291 switch (event) { 292 case CI_HDRC_IMX_HSIC_ACTIVE_EVENT: 293 if (data->pinctrl) { 294 ret = pinctrl_select_state(data->pinctrl, 295 data->pinctrl_hsic_active); 296 if (ret) 297 dev_err(dev, 298 "hsic_active select failed, err=%d\n", 299 ret); 300 } 301 break; 302 case CI_HDRC_IMX_HSIC_SUSPEND_EVENT: 303 ret = imx_usbmisc_hsic_set_connect(mdata); 304 if (ret) 305 dev_err(dev, 306 "hsic_set_connect failed, err=%d\n", ret); 307 break; 308 case CI_HDRC_CONTROLLER_VBUS_EVENT: 309 if (ci->vbus_active) 310 ret = imx_usbmisc_charger_detection(mdata, true); 311 else 312 ret = imx_usbmisc_charger_detection(mdata, false); 313 if (ci->usb_phy) 314 schedule_work(&ci->usb_phy->chg_work); 315 break; 316 default: 317 break; 318 } 319 320 return ret; 321 } 322 323 static int ci_hdrc_imx_probe(struct platform_device *pdev) 324 { 325 struct ci_hdrc_imx_data *data; 326 struct ci_hdrc_platform_data pdata = { 327 .name = dev_name(&pdev->dev), 328 .capoffset = DEF_CAPOFFSET, 329 .notify_event = ci_hdrc_imx_notify_event, 330 }; 331 int ret; 332 const struct ci_hdrc_imx_platform_flag *imx_platform_flag; 333 struct device_node *np = pdev->dev.of_node; 334 struct device *dev = &pdev->dev; 335 336 imx_platform_flag = of_device_get_match_data(&pdev->dev); 337 338 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); 339 if (!data) 340 return -ENOMEM; 341 342 data->plat_data = imx_platform_flag; 343 pdata.flags |= imx_platform_flag->flags; 344 platform_set_drvdata(pdev, data); 345 data->usbmisc_data = usbmisc_get_init_data(dev); 346 if (IS_ERR(data->usbmisc_data)) 347 return PTR_ERR(data->usbmisc_data); 348 349 if ((of_usb_get_phy_mode(dev->of_node) == USBPHY_INTERFACE_MODE_HSIC) 350 && data->usbmisc_data) { 351 pdata.flags |= CI_HDRC_IMX_IS_HSIC; 352 data->usbmisc_data->hsic = 1; 353 data->pinctrl = devm_pinctrl_get(dev); 354 if (PTR_ERR(data->pinctrl) == -ENODEV) 355 data->pinctrl = NULL; 356 else if (IS_ERR(data->pinctrl)) 357 return dev_err_probe(dev, PTR_ERR(data->pinctrl), 358 "pinctrl get failed\n"); 359 360 data->hsic_pad_regulator = 361 devm_regulator_get_optional(dev, "hsic"); 362 if (PTR_ERR(data->hsic_pad_regulator) == -ENODEV) { 363 /* no pad regulator is needed */ 364 data->hsic_pad_regulator = NULL; 365 } else if (IS_ERR(data->hsic_pad_regulator)) 366 return dev_err_probe(dev, PTR_ERR(data->hsic_pad_regulator), 367 "Get HSIC pad regulator error\n"); 368 369 if (data->hsic_pad_regulator) { 370 ret = regulator_enable(data->hsic_pad_regulator); 371 if (ret) { 372 dev_err(dev, 373 "Failed to enable HSIC pad regulator\n"); 374 return ret; 375 } 376 } 377 } 378 379 /* HSIC pinctrl handling */ 380 if (data->pinctrl) { 381 struct pinctrl_state *pinctrl_hsic_idle; 382 383 pinctrl_hsic_idle = pinctrl_lookup_state(data->pinctrl, "idle"); 384 if (IS_ERR(pinctrl_hsic_idle)) { 385 dev_err(dev, 386 "pinctrl_hsic_idle lookup failed, err=%ld\n", 387 PTR_ERR(pinctrl_hsic_idle)); 388 return PTR_ERR(pinctrl_hsic_idle); 389 } 390 391 ret = pinctrl_select_state(data->pinctrl, pinctrl_hsic_idle); 392 if (ret) { 393 dev_err(dev, "hsic_idle select failed, err=%d\n", ret); 394 return ret; 395 } 396 397 data->pinctrl_hsic_active = pinctrl_lookup_state(data->pinctrl, 398 "active"); 399 if (IS_ERR(data->pinctrl_hsic_active)) { 400 dev_err(dev, 401 "pinctrl_hsic_active lookup failed, err=%ld\n", 402 PTR_ERR(data->pinctrl_hsic_active)); 403 return PTR_ERR(data->pinctrl_hsic_active); 404 } 405 } 406 407 if (pdata.flags & CI_HDRC_PMQOS) 408 cpu_latency_qos_add_request(&data->pm_qos_req, 0); 409 410 ret = imx_get_clks(dev); 411 if (ret) 412 goto disable_hsic_regulator; 413 414 ret = imx_prepare_enable_clks(dev); 415 if (ret) 416 goto disable_hsic_regulator; 417 418 data->phy = devm_usb_get_phy_by_phandle(dev, "fsl,usbphy", 0); 419 if (IS_ERR(data->phy)) { 420 ret = PTR_ERR(data->phy); 421 if (ret != -ENODEV) { 422 dev_err_probe(dev, ret, "Failed to parse fsl,usbphy\n"); 423 goto err_clk; 424 } 425 data->phy = devm_usb_get_phy_by_phandle(dev, "phys", 0); 426 if (IS_ERR(data->phy)) { 427 ret = PTR_ERR(data->phy); 428 if (ret == -ENODEV) { 429 data->phy = NULL; 430 } else { 431 dev_err_probe(dev, ret, "Failed to parse phys\n"); 432 goto err_clk; 433 } 434 } 435 } 436 437 pdata.usb_phy = data->phy; 438 if (data->usbmisc_data) 439 data->usbmisc_data->usb_phy = data->phy; 440 441 if ((of_device_is_compatible(np, "fsl,imx53-usb") || 442 of_device_is_compatible(np, "fsl,imx51-usb")) && pdata.usb_phy && 443 of_usb_get_phy_mode(np) == USBPHY_INTERFACE_MODE_ULPI) { 444 pdata.flags |= CI_HDRC_OVERRIDE_PHY_CONTROL; 445 data->override_phy_control = true; 446 usb_phy_init(pdata.usb_phy); 447 } 448 449 if (pdata.flags & CI_HDRC_SUPPORTS_RUNTIME_PM) 450 data->supports_runtime_pm = true; 451 452 ret = imx_usbmisc_init(data->usbmisc_data); 453 if (ret) { 454 dev_err(dev, "usbmisc init failed, ret=%d\n", ret); 455 goto err_clk; 456 } 457 458 data->ci_pdev = ci_hdrc_add_device(dev, 459 pdev->resource, pdev->num_resources, 460 &pdata); 461 if (IS_ERR(data->ci_pdev)) { 462 ret = PTR_ERR(data->ci_pdev); 463 dev_err_probe(dev, ret, "ci_hdrc_add_device failed\n"); 464 goto err_clk; 465 } 466 467 if (data->usbmisc_data) { 468 if (!IS_ERR(pdata.id_extcon.edev) || 469 of_property_read_bool(np, "usb-role-switch")) 470 data->usbmisc_data->ext_id = 1; 471 472 if (!IS_ERR(pdata.vbus_extcon.edev) || 473 of_property_read_bool(np, "usb-role-switch")) 474 data->usbmisc_data->ext_vbus = 1; 475 476 /* usbmisc needs to know dr mode to choose wakeup setting */ 477 data->usbmisc_data->available_role = 478 ci_hdrc_query_available_role(data->ci_pdev); 479 } 480 481 ret = imx_usbmisc_init_post(data->usbmisc_data); 482 if (ret) { 483 dev_err(dev, "usbmisc post failed, ret=%d\n", ret); 484 goto disable_device; 485 } 486 487 if (data->supports_runtime_pm) { 488 pm_runtime_set_active(dev); 489 pm_runtime_enable(dev); 490 } 491 492 device_set_wakeup_capable(dev, true); 493 494 return 0; 495 496 disable_device: 497 ci_hdrc_remove_device(data->ci_pdev); 498 err_clk: 499 imx_disable_unprepare_clks(dev); 500 disable_hsic_regulator: 501 if (data->hsic_pad_regulator) 502 /* don't overwrite original ret (cf. EPROBE_DEFER) */ 503 regulator_disable(data->hsic_pad_regulator); 504 if (pdata.flags & CI_HDRC_PMQOS) 505 cpu_latency_qos_remove_request(&data->pm_qos_req); 506 data->ci_pdev = NULL; 507 return ret; 508 } 509 510 static void ci_hdrc_imx_remove(struct platform_device *pdev) 511 { 512 struct ci_hdrc_imx_data *data = platform_get_drvdata(pdev); 513 514 if (data->supports_runtime_pm) { 515 pm_runtime_get_sync(&pdev->dev); 516 pm_runtime_disable(&pdev->dev); 517 pm_runtime_put_noidle(&pdev->dev); 518 } 519 if (data->ci_pdev) 520 ci_hdrc_remove_device(data->ci_pdev); 521 if (data->override_phy_control) 522 usb_phy_shutdown(data->phy); 523 if (data->ci_pdev) { 524 imx_disable_unprepare_clks(&pdev->dev); 525 if (data->plat_data->flags & CI_HDRC_PMQOS) 526 cpu_latency_qos_remove_request(&data->pm_qos_req); 527 if (data->hsic_pad_regulator) 528 regulator_disable(data->hsic_pad_regulator); 529 } 530 } 531 532 static void ci_hdrc_imx_shutdown(struct platform_device *pdev) 533 { 534 ci_hdrc_imx_remove(pdev); 535 } 536 537 static int __maybe_unused imx_controller_suspend(struct device *dev, 538 pm_message_t msg) 539 { 540 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 541 int ret = 0; 542 543 dev_dbg(dev, "at %s\n", __func__); 544 545 ret = imx_usbmisc_suspend(data->usbmisc_data, 546 PMSG_IS_AUTO(msg) || device_may_wakeup(dev)); 547 if (ret) { 548 dev_err(dev, 549 "usbmisc suspend failed, ret=%d\n", ret); 550 return ret; 551 } 552 553 imx_disable_unprepare_clks(dev); 554 if (data->plat_data->flags & CI_HDRC_PMQOS) 555 cpu_latency_qos_remove_request(&data->pm_qos_req); 556 557 data->in_lpm = true; 558 559 return 0; 560 } 561 562 static int __maybe_unused imx_controller_resume(struct device *dev, 563 pm_message_t msg) 564 { 565 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 566 int ret = 0; 567 568 dev_dbg(dev, "at %s\n", __func__); 569 570 if (!data->in_lpm) { 571 WARN_ON(1); 572 return 0; 573 } 574 575 if (data->plat_data->flags & CI_HDRC_PMQOS) 576 cpu_latency_qos_add_request(&data->pm_qos_req, 0); 577 578 ret = imx_prepare_enable_clks(dev); 579 if (ret) 580 return ret; 581 582 data->in_lpm = false; 583 584 ret = imx_usbmisc_resume(data->usbmisc_data, 585 PMSG_IS_AUTO(msg) || device_may_wakeup(dev)); 586 if (ret) { 587 dev_err(dev, "usbmisc resume failed, ret=%d\n", ret); 588 goto clk_disable; 589 } 590 591 return 0; 592 593 clk_disable: 594 imx_disable_unprepare_clks(dev); 595 return ret; 596 } 597 598 static int __maybe_unused ci_hdrc_imx_suspend(struct device *dev) 599 { 600 int ret; 601 602 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 603 604 if (data->in_lpm) 605 /* The core's suspend doesn't run */ 606 return 0; 607 608 ret = imx_controller_suspend(dev, PMSG_SUSPEND); 609 if (ret) 610 return ret; 611 612 pinctrl_pm_select_sleep_state(dev); 613 return ret; 614 } 615 616 static int __maybe_unused ci_hdrc_imx_resume(struct device *dev) 617 { 618 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 619 int ret; 620 621 pinctrl_pm_select_default_state(dev); 622 ret = imx_controller_resume(dev, PMSG_RESUME); 623 if (!ret && data->supports_runtime_pm) { 624 pm_runtime_disable(dev); 625 pm_runtime_set_active(dev); 626 pm_runtime_enable(dev); 627 } 628 629 return ret; 630 } 631 632 static int __maybe_unused ci_hdrc_imx_runtime_suspend(struct device *dev) 633 { 634 struct ci_hdrc_imx_data *data = dev_get_drvdata(dev); 635 636 if (data->in_lpm) { 637 WARN_ON(1); 638 return 0; 639 } 640 641 return imx_controller_suspend(dev, PMSG_AUTO_SUSPEND); 642 } 643 644 static int __maybe_unused ci_hdrc_imx_runtime_resume(struct device *dev) 645 { 646 return imx_controller_resume(dev, PMSG_AUTO_RESUME); 647 } 648 649 static const struct dev_pm_ops ci_hdrc_imx_pm_ops = { 650 SET_SYSTEM_SLEEP_PM_OPS(ci_hdrc_imx_suspend, ci_hdrc_imx_resume) 651 SET_RUNTIME_PM_OPS(ci_hdrc_imx_runtime_suspend, 652 ci_hdrc_imx_runtime_resume, NULL) 653 }; 654 static struct platform_driver ci_hdrc_imx_driver = { 655 .probe = ci_hdrc_imx_probe, 656 .remove_new = ci_hdrc_imx_remove, 657 .shutdown = ci_hdrc_imx_shutdown, 658 .driver = { 659 .name = "imx_usb", 660 .of_match_table = ci_hdrc_imx_dt_ids, 661 .pm = &ci_hdrc_imx_pm_ops, 662 }, 663 }; 664 665 module_platform_driver(ci_hdrc_imx_driver); 666 667 MODULE_ALIAS("platform:imx-usb"); 668 MODULE_LICENSE("GPL"); 669 MODULE_DESCRIPTION("CI HDRC i.MX USB binding"); 670 MODULE_AUTHOR("Marek Vasut <marex@denx.de>"); 671 MODULE_AUTHOR("Richard Zhao <richard.zhao@freescale.com>"); 672