drivers/gpu/drm/exynos/exynos_drm_drv.c

   1 /*
   2  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
   3  * Authors:
   4  *      Inki Dae <inki.dae@samsung.com>
   5  *      Joonyoung Shim <jy0922.shim@samsung.com>
   6  *      Seung-Woo Kim <sw0312.kim@samsung.com>
   7  *
   8  * This program is free software; you can redistribute  it and/or modify it
   9  * under  the terms of  the GNU General  Public License as published by the
  10  * Free Software Foundation;  either version 2 of the  License, or (at your
  11  * option) any later version.
  12  */
  13
  14 #include <linux/pm_runtime.h>
  15 #include <drm/drmP.h>
  16 #include <drm/drm_crtc_helper.h>
  17
  18 #include <linux/component.h>
  19
  20 #include <drm/exynos_drm.h>
  21
  22 #include "exynos_drm_drv.h"
  23 #include "exynos_drm_crtc.h"
  24 #include "exynos_drm_encoder.h"
  25 #include "exynos_drm_fbdev.h"
  26 #include "exynos_drm_fb.h"
  27 #include "exynos_drm_gem.h"
  28 #include "exynos_drm_plane.h"
  29 #include "exynos_drm_vidi.h"
  30 #include "exynos_drm_dmabuf.h"
  31 #include "exynos_drm_g2d.h"
  32 #include "exynos_drm_ipp.h"
  33 #include "exynos_drm_iommu.h"
  34
  35 #define DRIVER_NAME     "exynos"
  36 #define DRIVER_DESC     "Samsung SoC DRM"
  37 #define DRIVER_DATE     "20110530"
  38 #define DRIVER_MAJOR    1
  39 #define DRIVER_MINOR    0
  40
  41 static struct platform_device *exynos_drm_pdev;
  42
  43 static DEFINE_MUTEX(drm_component_lock);
  44 static LIST_HEAD(drm_component_list);
  45
  46 struct component_dev {
  47         struct list_head list;
  48         struct device *crtc_dev;
  49         struct device *conn_dev;
  50         enum exynos_drm_output_type out_type;
  51         unsigned int dev_type_flag;
  52 };
  53
  54 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
  55 {
  56         struct exynos_drm_private *private;
  57         int ret;
  58         int nr;
  59
  60         private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
  61         if (!private)
  62                 return -ENOMEM;
  63
  64         INIT_LIST_HEAD(&private->pageflip_event_list);
  65         dev_set_drvdata(dev->dev, dev);
  66         dev->dev_private = (void *)private;
  67
  68         /*
  69          * create mapping to manage iommu table and set a pointer to iommu
  70          * mapping structure to iommu_mapping of private data.
  71          * also this iommu_mapping can be used to check if iommu is supported
  72          * or not.
  73          */
  74         ret = drm_create_iommu_mapping(dev);
  75         if (ret < 0) {
  76                 DRM_ERROR("failed to create iommu mapping.\n");
  77                 goto err_free_private;
  78         }
  79
  80         drm_mode_config_init(dev);
  81
  82         exynos_drm_mode_config_init(dev);
  83
  84         for (nr = 0; nr < MAX_PLANE; nr++) {
  85                 struct drm_plane *plane;
  86                 unsigned long possible_crtcs = (1 << MAX_CRTC) - 1;
  87
  88                 plane = exynos_plane_init(dev, possible_crtcs,
  89                                           DRM_PLANE_TYPE_OVERLAY);
  90                 if (IS_ERR(plane))
  91                         goto err_mode_config_cleanup;
  92         }
  93
  94         /* init kms poll for handling hpd */
  95         drm_kms_helper_poll_init(dev);
  96
  97         ret = drm_vblank_init(dev, MAX_CRTC);
  98         if (ret)
  99                 goto err_mode_config_cleanup;
 100
 101         /* setup possible_clones. */
 102         exynos_drm_encoder_setup(dev);
 103
 104         platform_set_drvdata(dev->platformdev, dev);
 105
 106         /* Try to bind all sub drivers. */
 107         ret = component_bind_all(dev->dev, dev);
 108         if (ret)
 109                 goto err_cleanup_vblank;
 110
 111         /* Probe non kms sub drivers and virtual display driver. */
 112         ret = exynos_drm_device_subdrv_probe(dev);
 113         if (ret)
 114                 goto err_unbind_all;
 115
 116         /* force connectors detection */
 117         drm_helper_hpd_irq_event(dev);
 118
 119         /*
 120          * enable drm irq mode.
 121          * - with irq_enabled = true, we can use the vblank feature.
 122          *
 123          * P.S. note that we wouldn't use drm irq handler but
 124          *      just specific driver own one instead because
 125          *      drm framework supports only one irq handler.
 126          */
 127         dev->irq_enabled = true;
 128
 129         /*
 130          * with vblank_disable_allowed = true, vblank interrupt will be disabled
 131          * by drm timer once a current process gives up ownership of
 132          * vblank event.(after drm_vblank_put function is called)
 133          */
 134         dev->vblank_disable_allowed = true;
 135
 136         return 0;
 137
 138 err_unbind_all:
 139         component_unbind_all(dev->dev, dev);
 140 err_cleanup_vblank:
 141         drm_vblank_cleanup(dev);
 142 err_mode_config_cleanup:
 143         drm_mode_config_cleanup(dev);
 144         drm_release_iommu_mapping(dev);
 145 err_free_private:
 146         kfree(private);
 147
 148         return ret;
 149 }
 150
 151 static int exynos_drm_unload(struct drm_device *dev)
 152 {
 153         exynos_drm_device_subdrv_remove(dev);
 154
 155         exynos_drm_fbdev_fini(dev);
 156         drm_kms_helper_poll_fini(dev);
 157
 158         component_unbind_all(dev->dev, dev);
 159         drm_vblank_cleanup(dev);
 160         drm_mode_config_cleanup(dev);
 161         drm_release_iommu_mapping(dev);
 162
 163         kfree(dev->dev_private);
 164         dev->dev_private = NULL;
 165
 166         return 0;
 167 }
 168
 169 static int exynos_drm_suspend(struct drm_device *dev, pm_message_t state)
 170 {
 171         struct drm_connector *connector;
 172
 173         drm_modeset_lock_all(dev);
 174         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 175                 int old_dpms = connector->dpms;
 176
 177                 if (connector->funcs->dpms)
 178                         connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF);
 179
 180                 /* Set the old mode back to the connector for resume */
 181                 connector->dpms = old_dpms;
 182         }
 183         drm_modeset_unlock_all(dev);
 184
 185         return 0;
 186 }
 187
 188 static int exynos_drm_resume(struct drm_device *dev)
 189 {
 190         struct drm_connector *connector;
 191
 192         drm_modeset_lock_all(dev);
 193         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 194                 if (connector->funcs->dpms)
 195                         connector->funcs->dpms(connector, connector->dpms);
 196         }
 197         drm_modeset_unlock_all(dev);
 198
 199         drm_helper_resume_force_mode(dev);
 200
 201         return 0;
 202 }
 203
 204 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
 205 {
 206         struct drm_exynos_file_private *file_priv;
 207         int ret;
 208
 209         file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
 210         if (!file_priv)
 211                 return -ENOMEM;
 212
 213         file->driver_priv = file_priv;
 214
 215         ret = exynos_drm_subdrv_open(dev, file);
 216         if (ret)
 217                 goto err_file_priv_free;
 218
 219         return ret;
 220
 221 err_file_priv_free:
 222         kfree(file_priv);
 223         file->driver_priv = NULL;
 224         return ret;
 225 }
 226
 227 static void exynos_drm_preclose(struct drm_device *dev,
 228                                         struct drm_file *file)
 229 {
 230         exynos_drm_subdrv_close(dev, file);
 231 }
 232
 233 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
 234 {
 235         struct exynos_drm_private *private = dev->dev_private;
 236         struct drm_pending_vblank_event *v, *vt;
 237         struct drm_pending_event *e, *et;
 238         unsigned long flags;
 239
 240         if (!file->driver_priv)
 241                 return;
 242
 243         /* Release all events not unhandled by page flip handler. */
 244         spin_lock_irqsave(&dev->event_lock, flags);
 245         list_for_each_entry_safe(v, vt, &private->pageflip_event_list,
 246                         base.link) {
 247                 if (v->base.file_priv == file) {
 248                         list_del(&v->base.link);
 249                         drm_vblank_put(dev, v->pipe);
 250                         v->base.destroy(&v->base);
 251                 }
 252         }
 253
 254         /* Release all events handled by page flip handler but not freed. */
 255         list_for_each_entry_safe(e, et, &file->event_list, link) {
 256                 list_del(&e->link);
 257                 e->destroy(e);
 258         }
 259         spin_unlock_irqrestore(&dev->event_lock, flags);
 260
 261         kfree(file->driver_priv);
 262         file->driver_priv = NULL;
 263 }
 264
 265 static void exynos_drm_lastclose(struct drm_device *dev)
 266 {
 267         exynos_drm_fbdev_restore_mode(dev);
 268 }
 269
 270 static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
 271         .fault = exynos_drm_gem_fault,
 272         .open = drm_gem_vm_open,
 273         .close = drm_gem_vm_close,
 274 };
 275
 276 static const struct drm_ioctl_desc exynos_ioctls[] = {
 277         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
 278                         DRM_UNLOCKED | DRM_AUTH),
 279         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
 280                         exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
 281         DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
 282                         vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
 283         DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
 284                         exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
 285         DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
 286                         exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
 287         DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
 288                         exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
 289         DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
 290                         exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH),
 291         DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
 292                         exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH),
 293         DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
 294                         exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH),
 295         DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
 296                         exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH),
 297 };
 298
 299 static const struct file_operations exynos_drm_driver_fops = {
 300         .owner          = THIS_MODULE,
 301         .open           = drm_open,
 302         .mmap           = exynos_drm_gem_mmap,
 303         .poll           = drm_poll,
 304         .read           = drm_read,
 305         .unlocked_ioctl = drm_ioctl,
 306 #ifdef CONFIG_COMPAT
 307         .compat_ioctl = drm_compat_ioctl,
 308 #endif
 309         .release        = drm_release,
 310 };
 311
 312 static struct drm_driver exynos_drm_driver = {
 313         .driver_features        = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
 314         .load                   = exynos_drm_load,
 315         .unload                 = exynos_drm_unload,
 316         .suspend                = exynos_drm_suspend,
 317         .resume                 = exynos_drm_resume,
 318         .open                   = exynos_drm_open,
 319         .preclose               = exynos_drm_preclose,
 320         .lastclose              = exynos_drm_lastclose,
 321         .postclose              = exynos_drm_postclose,
 322         .set_busid              = drm_platform_set_busid,
 323         .get_vblank_counter     = drm_vblank_count,
 324         .enable_vblank          = exynos_drm_crtc_enable_vblank,
 325         .disable_vblank         = exynos_drm_crtc_disable_vblank,
 326         .gem_free_object        = exynos_drm_gem_free_object,
 327         .gem_vm_ops             = &exynos_drm_gem_vm_ops,
 328         .dumb_create            = exynos_drm_gem_dumb_create,
 329         .dumb_map_offset        = exynos_drm_gem_dumb_map_offset,
 330         .dumb_destroy           = drm_gem_dumb_destroy,
 331         .prime_handle_to_fd     = drm_gem_prime_handle_to_fd,
 332         .prime_fd_to_handle     = drm_gem_prime_fd_to_handle,
 333         .gem_prime_export       = exynos_dmabuf_prime_export,
 334         .gem_prime_import       = exynos_dmabuf_prime_import,
 335         .ioctls                 = exynos_ioctls,
 336         .num_ioctls             = ARRAY_SIZE(exynos_ioctls),
 337         .fops                   = &exynos_drm_driver_fops,
 338         .name   = DRIVER_NAME,
 339         .desc   = DRIVER_DESC,
 340         .date   = DRIVER_DATE,
 341         .major  = DRIVER_MAJOR,
 342         .minor  = DRIVER_MINOR,
 343 };
 344
 345 #ifdef CONFIG_PM_SLEEP
 346 static int exynos_drm_sys_suspend(struct device *dev)
 347 {
 348         struct drm_device *drm_dev = dev_get_drvdata(dev);
 349         pm_message_t message;
 350
 351         if (pm_runtime_suspended(dev) || !drm_dev)
 352                 return 0;
 353
 354         message.event = PM_EVENT_SUSPEND;
 355         return exynos_drm_suspend(drm_dev, message);
 356 }
 357
 358 static int exynos_drm_sys_resume(struct device *dev)
 359 {
 360         struct drm_device *drm_dev = dev_get_drvdata(dev);
 361
 362         if (pm_runtime_suspended(dev) || !drm_dev)
 363                 return 0;
 364
 365         return exynos_drm_resume(drm_dev);
 366 }
 367 #endif
 368
 369 static const struct dev_pm_ops exynos_drm_pm_ops = {
 370         SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_sys_suspend, exynos_drm_sys_resume)
 371 };
 372
 373 int exynos_drm_component_add(struct device *dev,
 374                                 enum exynos_drm_device_type dev_type,
 375                                 enum exynos_drm_output_type out_type)
 376 {
 377         struct component_dev *cdev;
 378
 379         if (dev_type != EXYNOS_DEVICE_TYPE_CRTC &&
 380                         dev_type != EXYNOS_DEVICE_TYPE_CONNECTOR) {
 381                 DRM_ERROR("invalid device type.\n");
 382                 return -EINVAL;
 383         }
 384
 385         mutex_lock(&drm_component_lock);
 386
 387         /*
 388          * Make sure to check if there is a component which has two device
 389          * objects, for connector and for encoder/connector.
 390          * It should make sure that crtc and encoder/connector drivers are
 391          * ready before exynos drm core binds them.
 392          */
 393         list_for_each_entry(cdev, &drm_component_list, list) {
 394                 if (cdev->out_type == out_type) {
 395                         /*
 396                          * If crtc and encoder/connector device objects are
 397                          * added already just return.
 398                          */
 399                         if (cdev->dev_type_flag == (EXYNOS_DEVICE_TYPE_CRTC |
 400                                                 EXYNOS_DEVICE_TYPE_CONNECTOR)) {
 401                                 mutex_unlock(&drm_component_lock);
 402                                 return 0;
 403                         }
 404
 405                         if (dev_type == EXYNOS_DEVICE_TYPE_CRTC) {
 406                                 cdev->crtc_dev = dev;
 407                                 cdev->dev_type_flag |= dev_type;
 408                         }
 409
 410                         if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR) {
 411                                 cdev->conn_dev = dev;
 412                                 cdev->dev_type_flag |= dev_type;
 413                         }
 414
 415                         mutex_unlock(&drm_component_lock);
 416                         return 0;
 417                 }
 418         }
 419
 420         mutex_unlock(&drm_component_lock);
 421
 422         cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
 423         if (!cdev)
 424                 return -ENOMEM;
 425
 426         if (dev_type == EXYNOS_DEVICE_TYPE_CRTC)
 427                 cdev->crtc_dev = dev;
 428         if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR)
 429                 cdev->conn_dev = dev;
 430
 431         cdev->out_type = out_type;
 432         cdev->dev_type_flag = dev_type;
 433
 434         mutex_lock(&drm_component_lock);
 435         list_add_tail(&cdev->list, &drm_component_list);
 436         mutex_unlock(&drm_component_lock);
 437
 438         return 0;
 439 }
 440
 441 void exynos_drm_component_del(struct device *dev,
 442                                 enum exynos_drm_device_type dev_type)
 443 {
 444         struct component_dev *cdev, *next;
 445
 446         mutex_lock(&drm_component_lock);
 447
 448         list_for_each_entry_safe(cdev, next, &drm_component_list, list) {
 449                 if (dev_type == EXYNOS_DEVICE_TYPE_CRTC) {
 450                         if (cdev->crtc_dev == dev) {
 451                                 cdev->crtc_dev = NULL;
 452                                 cdev->dev_type_flag &= ~dev_type;
 453                         }
 454                 }
 455
 456                 if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR) {
 457                         if (cdev->conn_dev == dev) {
 458                                 cdev->conn_dev = NULL;
 459                                 cdev->dev_type_flag &= ~dev_type;
 460                         }
 461                 }
 462
 463                 /*
 464                  * Release cdev object only in case that both of crtc and
 465                  * encoder/connector device objects are NULL.
 466                  */
 467                 if (!cdev->crtc_dev && !cdev->conn_dev) {
 468                         list_del(&cdev->list);
 469                         kfree(cdev);
 470                 }
 471
 472                 break;
 473         }
 474
 475         mutex_unlock(&drm_component_lock);
 476 }
 477
 478 static int compare_dev(struct device *dev, void *data)
 479 {
 480         return dev == (struct device *)data;
 481 }
 482
 483 static struct component_match *exynos_drm_match_add(struct device *dev)
 484 {
 485         struct component_match *match = NULL;
 486         struct component_dev *cdev;
 487         unsigned int attach_cnt = 0;
 488
 489         mutex_lock(&drm_component_lock);
 490
 491         list_for_each_entry(cdev, &drm_component_list, list) {
 492                 /*
 493                  * Add components to master only in case that crtc and
 494                  * encoder/connector device objects exist.
 495                  */
 496                 if (!cdev->crtc_dev || !cdev->conn_dev)
 497                         continue;
 498
 499                 attach_cnt++;
 500
 501                 mutex_unlock(&drm_component_lock);
 502
 503                 /*
 504                  * fimd and dpi modules have same device object so add
 505                  * only crtc device object in this case.
 506                  */
 507                 if (cdev->crtc_dev == cdev->conn_dev) {
 508                         component_match_add(dev, &match, compare_dev,
 509                                                 cdev->crtc_dev);
 510                         goto out_lock;
 511                 }
 512
 513                 /*
 514                  * Do not chage below call order.
 515                  * crtc device first should be added to master because
 516                  * connector/encoder need pipe number of crtc when they
 517                  * are created.
 518                  */
 519                 component_match_add(dev, &match, compare_dev, cdev->crtc_dev);
 520                 component_match_add(dev, &match, compare_dev, cdev->conn_dev);
 521
 522 out_lock:
 523                 mutex_lock(&drm_component_lock);
 524         }
 525
 526         mutex_unlock(&drm_component_lock);
 527
 528         return attach_cnt ? match : ERR_PTR(-EPROBE_DEFER);
 529 }
 530
 531 static int exynos_drm_bind(struct device *dev)
 532 {
 533         return drm_platform_init(&exynos_drm_driver, to_platform_device(dev));
 534 }
 535
 536 static void exynos_drm_unbind(struct device *dev)
 537 {
 538         drm_put_dev(dev_get_drvdata(dev));
 539 }
 540
 541 static const struct component_master_ops exynos_drm_ops = {
 542         .bind           = exynos_drm_bind,
 543         .unbind         = exynos_drm_unbind,
 544 };
 545
 546 static int exynos_drm_platform_probe(struct platform_device *pdev)
 547 {
 548         struct component_match *match;
 549         int ret;
 550
 551         pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 552         exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls);
 553
 554 #ifdef CONFIG_DRM_EXYNOS_FIMD
 555         ret = platform_driver_register(&fimd_driver);
 556         if (ret < 0)
 557                 return ret;
 558 #endif
 559
 560 #ifdef CONFIG_DRM_EXYNOS_DP
 561         ret = platform_driver_register(&dp_driver);
 562         if (ret < 0)
 563                 goto err_unregister_fimd_drv;
 564 #endif
 565
 566 #ifdef CONFIG_DRM_EXYNOS_DSI
 567         ret = platform_driver_register(&dsi_driver);
 568         if (ret < 0)
 569                 goto err_unregister_dp_drv;
 570 #endif
 571
 572 #ifdef CONFIG_DRM_EXYNOS_HDMI
 573         ret = platform_driver_register(&mixer_driver);
 574         if (ret < 0)
 575                 goto err_unregister_dsi_drv;
 576         ret = platform_driver_register(&hdmi_driver);
 577         if (ret < 0)
 578                 goto err_unregister_mixer_drv;
 579 #endif
 580
 581 #ifdef CONFIG_DRM_EXYNOS_G2D
 582         ret = platform_driver_register(&g2d_driver);
 583         if (ret < 0)
 584                 goto err_unregister_hdmi_drv;
 585 #endif
 586
 587 #ifdef CONFIG_DRM_EXYNOS_FIMC
 588         ret = platform_driver_register(&fimc_driver);
 589         if (ret < 0)
 590                 goto err_unregister_g2d_drv;
 591 #endif
 592
 593 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
 594         ret = platform_driver_register(&rotator_driver);
 595         if (ret < 0)
 596                 goto err_unregister_fimc_drv;
 597 #endif
 598
 599 #ifdef CONFIG_DRM_EXYNOS_GSC
 600         ret = platform_driver_register(&gsc_driver);
 601         if (ret < 0)
 602                 goto err_unregister_rotator_drv;
 603 #endif
 604
 605 #ifdef CONFIG_DRM_EXYNOS_IPP
 606         ret = platform_driver_register(&ipp_driver);
 607         if (ret < 0)
 608                 goto err_unregister_gsc_drv;
 609
 610         ret = exynos_platform_device_ipp_register();
 611         if (ret < 0)
 612                 goto err_unregister_ipp_drv;
 613 #endif
 614
 615         match = exynos_drm_match_add(&pdev->dev);
 616         if (IS_ERR(match)) {
 617                 ret = PTR_ERR(match);
 618                 goto err_unregister_resources;
 619         }
 620
 621         ret = component_master_add_with_match(&pdev->dev, &exynos_drm_ops,
 622                                                 match);
 623         if (ret < 0)
 624                 goto err_unregister_resources;
 625
 626         return ret;
 627
 628 err_unregister_resources:
 629
 630 #ifdef CONFIG_DRM_EXYNOS_IPP
 631         exynos_platform_device_ipp_unregister();
 632 err_unregister_ipp_drv:
 633         platform_driver_unregister(&ipp_driver);
 634 err_unregister_gsc_drv:
 635 #endif
 636
 637 #ifdef CONFIG_DRM_EXYNOS_GSC
 638         platform_driver_unregister(&gsc_driver);
 639 err_unregister_rotator_drv:
 640 #endif
 641
 642 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
 643         platform_driver_unregister(&rotator_driver);
 644 err_unregister_fimc_drv:
 645 #endif
 646
 647 #ifdef CONFIG_DRM_EXYNOS_FIMC
 648         platform_driver_unregister(&fimc_driver);
 649 err_unregister_g2d_drv:
 650 #endif
 651
 652 #ifdef CONFIG_DRM_EXYNOS_G2D
 653         platform_driver_unregister(&g2d_driver);
 654 err_unregister_hdmi_drv:
 655 #endif
 656
 657 #ifdef CONFIG_DRM_EXYNOS_HDMI
 658         platform_driver_unregister(&hdmi_driver);
 659 err_unregister_mixer_drv:
 660         platform_driver_unregister(&mixer_driver);
 661 err_unregister_dsi_drv:
 662 #endif
 663
 664 #ifdef CONFIG_DRM_EXYNOS_DSI
 665         platform_driver_unregister(&dsi_driver);
 666 err_unregister_dp_drv:
 667 #endif
 668
 669 #ifdef CONFIG_DRM_EXYNOS_DP
 670         platform_driver_unregister(&dp_driver);
 671 err_unregister_fimd_drv:
 672 #endif
 673
 674 #ifdef CONFIG_DRM_EXYNOS_FIMD
 675         platform_driver_unregister(&fimd_driver);
 676 #endif
 677         return ret;
 678 }
 679
 680 static int exynos_drm_platform_remove(struct platform_device *pdev)
 681 {
 682 #ifdef CONFIG_DRM_EXYNOS_IPP
 683         exynos_platform_device_ipp_unregister();
 684         platform_driver_unregister(&ipp_driver);
 685 #endif
 686
 687 #ifdef CONFIG_DRM_EXYNOS_GSC
 688         platform_driver_unregister(&gsc_driver);
 689 #endif
 690
 691 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
 692         platform_driver_unregister(&rotator_driver);
 693 #endif
 694
 695 #ifdef CONFIG_DRM_EXYNOS_FIMC
 696         platform_driver_unregister(&fimc_driver);
 697 #endif
 698
 699 #ifdef CONFIG_DRM_EXYNOS_G2D
 700         platform_driver_unregister(&g2d_driver);
 701 #endif
 702
 703 #ifdef CONFIG_DRM_EXYNOS_HDMI
 704         platform_driver_unregister(&mixer_driver);
 705         platform_driver_unregister(&hdmi_driver);
 706 #endif
 707
 708 #ifdef CONFIG_DRM_EXYNOS_FIMD
 709         platform_driver_unregister(&fimd_driver);
 710 #endif
 711
 712 #ifdef CONFIG_DRM_EXYNOS_DSI
 713         platform_driver_unregister(&dsi_driver);
 714 #endif
 715
 716 #ifdef CONFIG_DRM_EXYNOS_DP
 717         platform_driver_unregister(&dp_driver);
 718 #endif
 719         component_master_del(&pdev->dev, &exynos_drm_ops);
 720         return 0;
 721 }
 722
 723 static struct platform_driver exynos_drm_platform_driver = {
 724         .probe  = exynos_drm_platform_probe,
 725         .remove = exynos_drm_platform_remove,
 726         .driver = {
 727                 .owner  = THIS_MODULE,
 728                 .name   = "exynos-drm",
 729                 .pm     = &exynos_drm_pm_ops,
 730         },
 731 };
 732
 733 static int exynos_drm_init(void)
 734 {
 735         int ret;
 736
 737         exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
 738                                                                 NULL, 0);
 739         if (IS_ERR(exynos_drm_pdev))
 740                 return PTR_ERR(exynos_drm_pdev);
 741
 742 #ifdef CONFIG_DRM_EXYNOS_VIDI
 743         ret = exynos_drm_probe_vidi();
 744         if (ret < 0)
 745                 goto err_unregister_pd;
 746 #endif
 747
 748         ret = platform_driver_register(&exynos_drm_platform_driver);
 749         if (ret)
 750                 goto err_remove_vidi;
 751
 752         return 0;
 753
 754 err_remove_vidi:
 755 #ifdef CONFIG_DRM_EXYNOS_VIDI
 756         exynos_drm_remove_vidi();
 757
 758 err_unregister_pd:
 759 #endif
 760         platform_device_unregister(exynos_drm_pdev);
 761
 762         return ret;
 763 }
 764
 765 static void exynos_drm_exit(void)
 766 {
 767         platform_driver_unregister(&exynos_drm_platform_driver);
 768 #ifdef CONFIG_DRM_EXYNOS_VIDI
 769         exynos_drm_remove_vidi();
 770 #endif
 771         platform_device_unregister(exynos_drm_pdev);
 772 }
 773
 774 module_init(exynos_drm_init);
 775 module_exit(exynos_drm_exit);
 776
 777 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
 778 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
 779 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
 780 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
 781 MODULE_LICENSE("GPL");