drivers/usb/chipidea/ci_hdrc_imx.c

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