drivers/gpu/drm/omapdrm/omap_drv.c

   1 /*
   2  * drivers/gpu/drm/omapdrm/omap_drv.c
   3  *
   4  * Copyright (C) 2011 Texas Instruments
   5  * Author: Rob Clark <rob@ti.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License version 2 as published by
   9  * the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along with
  17  * this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include "omap_drv.h"
  21
  22 #include "drm_crtc_helper.h"
  23 #include "drm_fb_helper.h"
  24 #include "omap_dmm_tiler.h"
  25
  26 #define DRIVER_NAME             MODULE_NAME
  27 #define DRIVER_DESC             "OMAP DRM"
  28 #define DRIVER_DATE             "20110917"
  29 #define DRIVER_MAJOR            1
  30 #define DRIVER_MINOR            0
  31 #define DRIVER_PATCHLEVEL       0
  32
  33 static int num_crtc = CONFIG_DRM_OMAP_NUM_CRTCS;
  34
  35 MODULE_PARM_DESC(num_crtc, "Number of overlays to use as CRTCs");
  36 module_param(num_crtc, int, 0600);
  37
  38 /*
  39  * mode config funcs
  40  */
  41
  42 /* Notes about mapping DSS and DRM entities:
  43  *    CRTC:        overlay
  44  *    encoder:     manager.. with some extension to allow one primary CRTC
  45  *                 and zero or more video CRTC's to be mapped to one encoder?
  46  *    connector:   dssdev.. manager can be attached/detached from different
  47  *                 devices
  48  */
  49
  50 static void omap_fb_output_poll_changed(struct drm_device *dev)
  51 {
  52         struct omap_drm_private *priv = dev->dev_private;
  53         DBG("dev=%p", dev);
  54         if (priv->fbdev)
  55                 drm_fb_helper_hotplug_event(priv->fbdev);
  56 }
  57
  58 static const struct drm_mode_config_funcs omap_mode_config_funcs = {
  59         .fb_create = omap_framebuffer_create,
  60         .output_poll_changed = omap_fb_output_poll_changed,
  61 };
  62
  63 static int get_connector_type(struct omap_dss_device *dssdev)
  64 {
  65         switch (dssdev->type) {
  66         case OMAP_DISPLAY_TYPE_HDMI:
  67                 return DRM_MODE_CONNECTOR_HDMIA;
  68         case OMAP_DISPLAY_TYPE_DVI:
  69                 return DRM_MODE_CONNECTOR_DVID;
  70         default:
  71                 return DRM_MODE_CONNECTOR_Unknown;
  72         }
  73 }
  74
  75 static bool channel_used(struct drm_device *dev, enum omap_channel channel)
  76 {
  77         struct omap_drm_private *priv = dev->dev_private;
  78         int i;
  79
  80         for (i = 0; i < priv->num_crtcs; i++) {
  81                 struct drm_crtc *crtc = priv->crtcs[i];
  82
  83                 if (omap_crtc_channel(crtc) == channel)
  84                         return true;
  85         }
  86
  87         return false;
  88 }
  89 static void omap_disconnect_dssdevs(void)
  90 {
  91         struct omap_dss_device *dssdev = NULL;
  92
  93         for_each_dss_dev(dssdev)
  94                 dssdev->driver->disconnect(dssdev);
  95 }
  96
  97 static int omap_connect_dssdevs(void)
  98 {
  99         int r;
 100         struct omap_dss_device *dssdev = NULL;
 101         bool no_displays = true;
 102
 103         for_each_dss_dev(dssdev) {
 104                 r = dssdev->driver->connect(dssdev);
 105                 if (r == -EPROBE_DEFER) {
 106                         omap_dss_put_device(dssdev);
 107                         goto cleanup;
 108                 } else if (r) {
 109                         dev_warn(dssdev->dev, "could not connect display: %s\n",
 110                                 dssdev->name);
 111                 } else {
 112                         no_displays = false;
 113                 }
 114         }
 115
 116         if (no_displays)
 117                 return -EPROBE_DEFER;
 118
 119         return 0;
 120
 121 cleanup:
 122         /*
 123          * if we are deferring probe, we disconnect the devices we previously
 124          * connected
 125          */
 126         omap_disconnect_dssdevs();
 127
 128         return r;
 129 }
 130
 131 static int omap_modeset_create_crtc(struct drm_device *dev, int id,
 132                                     enum omap_channel channel)
 133 {
 134         struct omap_drm_private *priv = dev->dev_private;
 135         struct drm_plane *plane;
 136         struct drm_crtc *crtc;
 137
 138         plane = omap_plane_init(dev, id, DRM_PLANE_TYPE_PRIMARY);
 139         if (IS_ERR(plane))
 140                 return PTR_ERR(plane);
 141
 142         crtc = omap_crtc_init(dev, plane, channel, id);
 143
 144         BUG_ON(priv->num_crtcs >= ARRAY_SIZE(priv->crtcs));
 145         priv->crtcs[id] = crtc;
 146         priv->num_crtcs++;
 147
 148         priv->planes[id] = plane;
 149         priv->num_planes++;
 150
 151         return 0;
 152 }
 153
 154 static int omap_modeset_init_properties(struct drm_device *dev)
 155 {
 156         struct omap_drm_private *priv = dev->dev_private;
 157
 158         if (priv->has_dmm) {
 159                 dev->mode_config.rotation_property =
 160                         drm_mode_create_rotation_property(dev,
 161                                 BIT(DRM_ROTATE_0) | BIT(DRM_ROTATE_90) |
 162                                 BIT(DRM_ROTATE_180) | BIT(DRM_ROTATE_270) |
 163                                 BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y));
 164                 if (!dev->mode_config.rotation_property)
 165                         return -ENOMEM;
 166         }
 167
 168         priv->zorder_prop = drm_property_create_range(dev, 0, "zorder", 0, 3);
 169         if (!priv->zorder_prop)
 170                 return -ENOMEM;
 171
 172         return 0;
 173 }
 174
 175 static int omap_modeset_init(struct drm_device *dev)
 176 {
 177         struct omap_drm_private *priv = dev->dev_private;
 178         struct omap_dss_device *dssdev = NULL;
 179         int num_ovls = dss_feat_get_num_ovls();
 180         int num_mgrs = dss_feat_get_num_mgrs();
 181         int num_crtcs;
 182         int i, id = 0;
 183         int ret;
 184
 185         drm_mode_config_init(dev);
 186
 187         omap_drm_irq_install(dev);
 188
 189         ret = omap_modeset_init_properties(dev);
 190         if (ret < 0)
 191                 return ret;
 192
 193         /*
 194          * We usually don't want to create a CRTC for each manager, at least
 195          * not until we have a way to expose private planes to userspace.
 196          * Otherwise there would not be enough video pipes left for drm planes.
 197          * We use the num_crtc argument to limit the number of crtcs we create.
 198          */
 199         num_crtcs = min3(num_crtc, num_mgrs, num_ovls);
 200
 201         dssdev = NULL;
 202
 203         for_each_dss_dev(dssdev) {
 204                 struct drm_connector *connector;
 205                 struct drm_encoder *encoder;
 206                 enum omap_channel channel;
 207                 struct omap_overlay_manager *mgr;
 208
 209                 if (!omapdss_device_is_connected(dssdev))
 210                         continue;
 211
 212                 encoder = omap_encoder_init(dev, dssdev);
 213
 214                 if (!encoder) {
 215                         dev_err(dev->dev, "could not create encoder: %s\n",
 216                                         dssdev->name);
 217                         return -ENOMEM;
 218                 }
 219
 220                 connector = omap_connector_init(dev,
 221                                 get_connector_type(dssdev), dssdev, encoder);
 222
 223                 if (!connector) {
 224                         dev_err(dev->dev, "could not create connector: %s\n",
 225                                         dssdev->name);
 226                         return -ENOMEM;
 227                 }
 228
 229                 BUG_ON(priv->num_encoders >= ARRAY_SIZE(priv->encoders));
 230                 BUG_ON(priv->num_connectors >= ARRAY_SIZE(priv->connectors));
 231
 232                 priv->encoders[priv->num_encoders++] = encoder;
 233                 priv->connectors[priv->num_connectors++] = connector;
 234
 235                 drm_mode_connector_attach_encoder(connector, encoder);
 236
 237                 /*
 238                  * if we have reached the limit of the crtcs we are allowed to
 239                  * create, let's not try to look for a crtc for this
 240                  * panel/encoder and onwards, we will, of course, populate the
 241                  * the possible_crtcs field for all the encoders with the final
 242                  * set of crtcs we create
 243                  */
 244                 if (id == num_crtcs)
 245                         continue;
 246
 247                 /*
 248                  * get the recommended DISPC channel for this encoder. For now,
 249                  * we only try to get create a crtc out of the recommended, the
 250                  * other possible channels to which the encoder can connect are
 251                  * not considered.
 252                  */
 253
 254                 mgr = omapdss_find_mgr_from_display(dssdev);
 255                 channel = mgr->id;
 256                 /*
 257                  * if this channel hasn't already been taken by a previously
 258                  * allocated crtc, we create a new crtc for it
 259                  */
 260                 if (!channel_used(dev, channel)) {
 261                         ret = omap_modeset_create_crtc(dev, id, channel);
 262                         if (ret < 0) {
 263                                 dev_err(dev->dev,
 264                                         "could not create CRTC (channel %u)\n",
 265                                         channel);
 266                                 return ret;
 267                         }
 268
 269                         id++;
 270                 }
 271         }
 272
 273         /*
 274          * we have allocated crtcs according to the need of the panels/encoders,
 275          * adding more crtcs here if needed
 276          */
 277         for (; id < num_crtcs; id++) {
 278
 279                 /* find a free manager for this crtc */
 280                 for (i = 0; i < num_mgrs; i++) {
 281                         if (!channel_used(dev, i))
 282                                 break;
 283                 }
 284
 285                 if (i == num_mgrs) {
 286                         /* this shouldn't really happen */
 287                         dev_err(dev->dev, "no managers left for crtc\n");
 288                         return -ENOMEM;
 289                 }
 290
 291                 ret = omap_modeset_create_crtc(dev, id, i);
 292                 if (ret < 0) {
 293                         dev_err(dev->dev,
 294                                 "could not create CRTC (channel %u)\n", i);
 295                         return ret;
 296                 }
 297         }
 298
 299         /*
 300          * Create normal planes for the remaining overlays:
 301          */
 302         for (; id < num_ovls; id++) {
 303                 struct drm_plane *plane;
 304
 305                 plane = omap_plane_init(dev, id, DRM_PLANE_TYPE_OVERLAY);
 306                 if (IS_ERR(plane))
 307                         return PTR_ERR(plane);
 308
 309                 BUG_ON(priv->num_planes >= ARRAY_SIZE(priv->planes));
 310                 priv->planes[priv->num_planes++] = plane;
 311         }
 312
 313         for (i = 0; i < priv->num_encoders; i++) {
 314                 struct drm_encoder *encoder = priv->encoders[i];
 315                 struct omap_dss_device *dssdev =
 316                                         omap_encoder_get_dssdev(encoder);
 317                 struct omap_dss_device *output;
 318
 319                 output = omapdss_find_output_from_display(dssdev);
 320
 321                 /* figure out which crtc's we can connect the encoder to: */
 322                 encoder->possible_crtcs = 0;
 323                 for (id = 0; id < priv->num_crtcs; id++) {
 324                         struct drm_crtc *crtc = priv->crtcs[id];
 325                         enum omap_channel crtc_channel;
 326
 327                         crtc_channel = omap_crtc_channel(crtc);
 328
 329                         if (output->dispc_channel == crtc_channel) {
 330                                 encoder->possible_crtcs |= (1 << id);
 331                                 break;
 332                         }
 333                 }
 334
 335                 omap_dss_put_device(output);
 336         }
 337
 338         DBG("registered %d planes, %d crtcs, %d encoders and %d connectors\n",
 339                 priv->num_planes, priv->num_crtcs, priv->num_encoders,
 340                 priv->num_connectors);
 341
 342         dev->mode_config.min_width = 32;
 343         dev->mode_config.min_height = 32;
 344
 345         /* note: eventually will need some cpu_is_omapXYZ() type stuff here
 346          * to fill in these limits properly on different OMAP generations..
 347          */
 348         dev->mode_config.max_width = 2048;
 349         dev->mode_config.max_height = 2048;
 350
 351         dev->mode_config.funcs = &omap_mode_config_funcs;
 352
 353         return 0;
 354 }
 355
 356 static void omap_modeset_free(struct drm_device *dev)
 357 {
 358         drm_mode_config_cleanup(dev);
 359 }
 360
 361 /*
 362  * drm ioctl funcs
 363  */
 364
 365
 366 static int ioctl_get_param(struct drm_device *dev, void *data,
 367                 struct drm_file *file_priv)
 368 {
 369         struct omap_drm_private *priv = dev->dev_private;
 370         struct drm_omap_param *args = data;
 371
 372         DBG("%p: param=%llu", dev, args->param);
 373
 374         switch (args->param) {
 375         case OMAP_PARAM_CHIPSET_ID:
 376                 args->value = priv->omaprev;
 377                 break;
 378         default:
 379                 DBG("unknown parameter %lld", args->param);
 380                 return -EINVAL;
 381         }
 382
 383         return 0;
 384 }
 385
 386 static int ioctl_set_param(struct drm_device *dev, void *data,
 387                 struct drm_file *file_priv)
 388 {
 389         struct drm_omap_param *args = data;
 390
 391         switch (args->param) {
 392         default:
 393                 DBG("unknown parameter %lld", args->param);
 394                 return -EINVAL;
 395         }
 396
 397         return 0;
 398 }
 399
 400 static int ioctl_gem_new(struct drm_device *dev, void *data,
 401                 struct drm_file *file_priv)
 402 {
 403         struct drm_omap_gem_new *args = data;
 404         VERB("%p:%p: size=0x%08x, flags=%08x", dev, file_priv,
 405                         args->size.bytes, args->flags);
 406         return omap_gem_new_handle(dev, file_priv, args->size,
 407                         args->flags, &args->handle);
 408 }
 409
 410 static int ioctl_gem_cpu_prep(struct drm_device *dev, void *data,
 411                 struct drm_file *file_priv)
 412 {
 413         struct drm_omap_gem_cpu_prep *args = data;
 414         struct drm_gem_object *obj;
 415         int ret;
 416
 417         VERB("%p:%p: handle=%d, op=%x", dev, file_priv, args->handle, args->op);
 418
 419         obj = drm_gem_object_lookup(dev, file_priv, args->handle);
 420         if (!obj)
 421                 return -ENOENT;
 422
 423         ret = omap_gem_op_sync(obj, args->op);
 424
 425         if (!ret)
 426                 ret = omap_gem_op_start(obj, args->op);
 427
 428         drm_gem_object_unreference_unlocked(obj);
 429
 430         return ret;
 431 }
 432
 433 static int ioctl_gem_cpu_fini(struct drm_device *dev, void *data,
 434                 struct drm_file *file_priv)
 435 {
 436         struct drm_omap_gem_cpu_fini *args = data;
 437         struct drm_gem_object *obj;
 438         int ret;
 439
 440         VERB("%p:%p: handle=%d", dev, file_priv, args->handle);
 441
 442         obj = drm_gem_object_lookup(dev, file_priv, args->handle);
 443         if (!obj)
 444                 return -ENOENT;
 445
 446         /* XXX flushy, flushy */
 447         ret = 0;
 448
 449         if (!ret)
 450                 ret = omap_gem_op_finish(obj, args->op);
 451
 452         drm_gem_object_unreference_unlocked(obj);
 453
 454         return ret;
 455 }
 456
 457 static int ioctl_gem_info(struct drm_device *dev, void *data,
 458                 struct drm_file *file_priv)
 459 {
 460         struct drm_omap_gem_info *args = data;
 461         struct drm_gem_object *obj;
 462         int ret = 0;
 463
 464         VERB("%p:%p: handle=%d", dev, file_priv, args->handle);
 465
 466         obj = drm_gem_object_lookup(dev, file_priv, args->handle);
 467         if (!obj)
 468                 return -ENOENT;
 469
 470         args->size = omap_gem_mmap_size(obj);
 471         args->offset = omap_gem_mmap_offset(obj);
 472
 473         drm_gem_object_unreference_unlocked(obj);
 474
 475         return ret;
 476 }
 477
 478 static const struct drm_ioctl_desc ioctls[DRM_COMMAND_END - DRM_COMMAND_BASE] = {
 479         DRM_IOCTL_DEF_DRV(OMAP_GET_PARAM, ioctl_get_param, DRM_UNLOCKED|DRM_AUTH),
 480         DRM_IOCTL_DEF_DRV(OMAP_SET_PARAM, ioctl_set_param, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
 481         DRM_IOCTL_DEF_DRV(OMAP_GEM_NEW, ioctl_gem_new, DRM_UNLOCKED|DRM_AUTH),
 482         DRM_IOCTL_DEF_DRV(OMAP_GEM_CPU_PREP, ioctl_gem_cpu_prep, DRM_UNLOCKED|DRM_AUTH),
 483         DRM_IOCTL_DEF_DRV(OMAP_GEM_CPU_FINI, ioctl_gem_cpu_fini, DRM_UNLOCKED|DRM_AUTH),
 484         DRM_IOCTL_DEF_DRV(OMAP_GEM_INFO, ioctl_gem_info, DRM_UNLOCKED|DRM_AUTH),
 485 };
 486
 487 /*
 488  * drm driver funcs
 489  */
 490
 491 /**
 492  * load - setup chip and create an initial config
 493  * @dev: DRM device
 494  * @flags: startup flags
 495  *
 496  * The driver load routine has to do several things:
 497  *   - initialize the memory manager
 498  *   - allocate initial config memory
 499  *   - setup the DRM framebuffer with the allocated memory
 500  */
 501 static int dev_load(struct drm_device *dev, unsigned long flags)
 502 {
 503         struct omap_drm_platform_data *pdata = dev->dev->platform_data;
 504         struct omap_drm_private *priv;
 505         unsigned int i;
 506         int ret;
 507
 508         DBG("load: dev=%p", dev);
 509
 510         priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 511         if (!priv)
 512                 return -ENOMEM;
 513
 514         priv->omaprev = pdata->omaprev;
 515
 516         dev->dev_private = priv;
 517
 518         priv->wq = alloc_ordered_workqueue("omapdrm", 0);
 519
 520         spin_lock_init(&priv->list_lock);
 521         INIT_LIST_HEAD(&priv->obj_list);
 522
 523         omap_gem_init(dev);
 524
 525         ret = omap_modeset_init(dev);
 526         if (ret) {
 527                 dev_err(dev->dev, "omap_modeset_init failed: ret=%d\n", ret);
 528                 dev->dev_private = NULL;
 529                 kfree(priv);
 530                 return ret;
 531         }
 532
 533         /* Initialize vblank handling, start with all CRTCs disabled. */
 534         ret = drm_vblank_init(dev, priv->num_crtcs);
 535         if (ret)
 536                 dev_warn(dev->dev, "could not init vblank\n");
 537
 538         for (i = 0; i < priv->num_crtcs; i++)
 539                 drm_crtc_vblank_off(priv->crtcs[i]);
 540
 541         priv->fbdev = omap_fbdev_init(dev);
 542         if (!priv->fbdev) {
 543                 dev_warn(dev->dev, "omap_fbdev_init failed\n");
 544                 /* well, limp along without an fbdev.. maybe X11 will work? */
 545         }
 546
 547         /* store off drm_device for use in pm ops */
 548         dev_set_drvdata(dev->dev, dev);
 549
 550         drm_kms_helper_poll_init(dev);
 551
 552         return 0;
 553 }
 554
 555 static int dev_unload(struct drm_device *dev)
 556 {
 557         struct omap_drm_private *priv = dev->dev_private;
 558
 559         DBG("unload: dev=%p", dev);
 560
 561         drm_kms_helper_poll_fini(dev);
 562
 563         if (priv->fbdev)
 564                 omap_fbdev_free(dev);
 565
 566         omap_modeset_free(dev);
 567         omap_gem_deinit(dev);
 568
 569         destroy_workqueue(priv->wq);
 570
 571         drm_vblank_cleanup(dev);
 572         omap_drm_irq_uninstall(dev);
 573
 574         kfree(dev->dev_private);
 575         dev->dev_private = NULL;
 576
 577         dev_set_drvdata(dev->dev, NULL);
 578
 579         return 0;
 580 }
 581
 582 static int dev_open(struct drm_device *dev, struct drm_file *file)
 583 {
 584         file->driver_priv = NULL;
 585
 586         DBG("open: dev=%p, file=%p", dev, file);
 587
 588         return 0;
 589 }
 590
 591 /**
 592  * lastclose - clean up after all DRM clients have exited
 593  * @dev: DRM device
 594  *
 595  * Take care of cleaning up after all DRM clients have exited.  In the
 596  * mode setting case, we want to restore the kernel's initial mode (just
 597  * in case the last client left us in a bad state).
 598  */
 599 static void dev_lastclose(struct drm_device *dev)
 600 {
 601         int i;
 602
 603         /* we don't support vga-switcheroo.. so just make sure the fbdev
 604          * mode is active
 605          */
 606         struct omap_drm_private *priv = dev->dev_private;
 607         int ret;
 608
 609         DBG("lastclose: dev=%p", dev);
 610
 611         if (dev->mode_config.rotation_property) {
 612                 /* need to restore default rotation state.. not sure
 613                  * if there is a cleaner way to restore properties to
 614                  * default state?  Maybe a flag that properties should
 615                  * automatically be restored to default state on
 616                  * lastclose?
 617                  */
 618                 for (i = 0; i < priv->num_crtcs; i++) {
 619                         drm_object_property_set_value(&priv->crtcs[i]->base,
 620                                         dev->mode_config.rotation_property, 0);
 621                 }
 622
 623                 for (i = 0; i < priv->num_planes; i++) {
 624                         drm_object_property_set_value(&priv->planes[i]->base,
 625                                         dev->mode_config.rotation_property, 0);
 626                 }
 627         }
 628
 629         if (priv->fbdev) {
 630                 ret = drm_fb_helper_restore_fbdev_mode_unlocked(priv->fbdev);
 631                 if (ret)
 632                         DBG("failed to restore crtc mode");
 633         }
 634 }
 635
 636 static void dev_preclose(struct drm_device *dev, struct drm_file *file)
 637 {
 638         struct omap_drm_private *priv = dev->dev_private;
 639         unsigned int i;
 640
 641         DBG("preclose: dev=%p", dev);
 642
 643         for (i = 0; i < priv->num_crtcs; ++i)
 644                 omap_crtc_cancel_page_flip(priv->crtcs[i], file);
 645 }
 646
 647 static void dev_postclose(struct drm_device *dev, struct drm_file *file)
 648 {
 649         DBG("postclose: dev=%p, file=%p", dev, file);
 650 }
 651
 652 static const struct vm_operations_struct omap_gem_vm_ops = {
 653         .fault = omap_gem_fault,
 654         .open = drm_gem_vm_open,
 655         .close = drm_gem_vm_close,
 656 };
 657
 658 static const struct file_operations omapdriver_fops = {
 659         .owner = THIS_MODULE,
 660         .open = drm_open,
 661         .unlocked_ioctl = drm_ioctl,
 662         .release = drm_release,
 663         .mmap = omap_gem_mmap,
 664         .poll = drm_poll,
 665         .read = drm_read,
 666         .llseek = noop_llseek,
 667 };
 668
 669 static struct drm_driver omap_drm_driver = {
 670         .driver_features = DRIVER_MODESET | DRIVER_GEM  | DRIVER_PRIME,
 671         .load = dev_load,
 672         .unload = dev_unload,
 673         .open = dev_open,
 674         .lastclose = dev_lastclose,
 675         .preclose = dev_preclose,
 676         .postclose = dev_postclose,
 677         .set_busid = drm_platform_set_busid,
 678         .get_vblank_counter = drm_vblank_count,
 679         .enable_vblank = omap_irq_enable_vblank,
 680         .disable_vblank = omap_irq_disable_vblank,
 681 #ifdef CONFIG_DEBUG_FS
 682         .debugfs_init = omap_debugfs_init,
 683         .debugfs_cleanup = omap_debugfs_cleanup,
 684 #endif
 685         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 686         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 687         .gem_prime_export = omap_gem_prime_export,
 688         .gem_prime_import = omap_gem_prime_import,
 689         .gem_free_object = omap_gem_free_object,
 690         .gem_vm_ops = &omap_gem_vm_ops,
 691         .dumb_create = omap_gem_dumb_create,
 692         .dumb_map_offset = omap_gem_dumb_map_offset,
 693         .dumb_destroy = drm_gem_dumb_destroy,
 694         .ioctls = ioctls,
 695         .num_ioctls = DRM_OMAP_NUM_IOCTLS,
 696         .fops = &omapdriver_fops,
 697         .name = DRIVER_NAME,
 698         .desc = DRIVER_DESC,
 699         .date = DRIVER_DATE,
 700         .major = DRIVER_MAJOR,
 701         .minor = DRIVER_MINOR,
 702         .patchlevel = DRIVER_PATCHLEVEL,
 703 };
 704
 705 static int pdev_probe(struct platform_device *device)
 706 {
 707         int r;
 708
 709         if (omapdss_is_initialized() == false)
 710                 return -EPROBE_DEFER;
 711
 712         omap_crtc_pre_init();
 713
 714         r = omap_connect_dssdevs();
 715         if (r) {
 716                 omap_crtc_pre_uninit();
 717                 return r;
 718         }
 719
 720         DBG("%s", device->name);
 721         return drm_platform_init(&omap_drm_driver, device);
 722 }
 723
 724 static int pdev_remove(struct platform_device *device)
 725 {
 726         DBG("");
 727
 728         drm_put_dev(platform_get_drvdata(device));
 729
 730         omap_disconnect_dssdevs();
 731         omap_crtc_pre_uninit();
 732
 733         return 0;
 734 }
 735
 736 #ifdef CONFIG_PM_SLEEP
 737 static int omap_drm_suspend(struct device *dev)
 738 {
 739         struct drm_device *drm_dev = dev_get_drvdata(dev);
 740
 741         drm_kms_helper_poll_disable(drm_dev);
 742
 743         return 0;
 744 }
 745
 746 static int omap_drm_resume(struct device *dev)
 747 {
 748         struct drm_device *drm_dev = dev_get_drvdata(dev);
 749
 750         drm_kms_helper_poll_enable(drm_dev);
 751
 752         return omap_gem_resume(dev);
 753 }
 754 #endif
 755
 756 static SIMPLE_DEV_PM_OPS(omapdrm_pm_ops, omap_drm_suspend, omap_drm_resume);
 757
 758 static struct platform_driver pdev = {
 759         .driver = {
 760                 .name = DRIVER_NAME,
 761                 .pm = &omapdrm_pm_ops,
 762         },
 763         .probe = pdev_probe,
 764         .remove = pdev_remove,
 765 };
 766
 767 static int __init omap_drm_init(void)
 768 {
 769         int r;
 770
 771         DBG("init");
 772
 773         r = platform_driver_register(&omap_dmm_driver);
 774         if (r) {
 775                 pr_err("DMM driver registration failed\n");
 776                 return r;
 777         }
 778
 779         r = platform_driver_register(&pdev);
 780         if (r) {
 781                 pr_err("omapdrm driver registration failed\n");
 782                 platform_driver_unregister(&omap_dmm_driver);
 783                 return r;
 784         }
 785
 786         return 0;
 787 }
 788
 789 static void __exit omap_drm_fini(void)
 790 {
 791         DBG("fini");
 792
 793         platform_driver_unregister(&pdev);
 794
 795         platform_driver_unregister(&omap_dmm_driver);
 796 }
 797
 798 /* need late_initcall() so we load after dss_driver's are loaded */
 799 late_initcall(omap_drm_init);
 800 module_exit(omap_drm_fini);
 801
 802 MODULE_AUTHOR("Rob Clark <rob@ti.com>");
 803 MODULE_DESCRIPTION("OMAP DRM Display Driver");
 804 MODULE_ALIAS("platform:" DRIVER_NAME);
 805 MODULE_LICENSE("GPL v2");