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/anon_inodes.h>
  19 #include <linux/component.h>
  20
  21 #include <drm/exynos_drm.h>
  22
  23 #include "exynos_drm_drv.h"
  24 #include "exynos_drm_crtc.h"
  25 #include "exynos_drm_encoder.h"
  26 #include "exynos_drm_fbdev.h"
  27 #include "exynos_drm_fb.h"
  28 #include "exynos_drm_gem.h"
  29 #include "exynos_drm_plane.h"
  30 #include "exynos_drm_vidi.h"
  31 #include "exynos_drm_dmabuf.h"
  32 #include "exynos_drm_g2d.h"
  33 #include "exynos_drm_ipp.h"
  34 #include "exynos_drm_iommu.h"
  35
  36 #define DRIVER_NAME     "exynos"
  37 #define DRIVER_DESC     "Samsung SoC DRM"
  38 #define DRIVER_DATE     "20110530"
  39 #define DRIVER_MAJOR    1
  40 #define DRIVER_MINOR    0
  41
  42 #define VBLANK_OFF_DELAY        50000
  43
  44 static struct platform_device *exynos_drm_pdev;
  45
  46 static DEFINE_MUTEX(drm_component_lock);
  47 static LIST_HEAD(drm_component_list);
  48
  49 struct component_dev {
  50         struct list_head list;
  51         struct device *crtc_dev;
  52         struct device *conn_dev;
  53         enum exynos_drm_output_type out_type;
  54         unsigned int dev_type_flag;
  55 };
  56
  57 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
  58 {
  59         struct exynos_drm_private *private;
  60         int ret;
  61         int nr;
  62
  63         private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
  64         if (!private)
  65                 return -ENOMEM;
  66
  67         INIT_LIST_HEAD(&private->pageflip_event_list);
  68         dev_set_drvdata(dev->dev, dev);
  69         dev->dev_private = (void *)private;
  70
  71         /*
  72          * create mapping to manage iommu table and set a pointer to iommu
  73          * mapping structure to iommu_mapping of private data.
  74          * also this iommu_mapping can be used to check if iommu is supported
  75          * or not.
  76          */
  77         ret = drm_create_iommu_mapping(dev);
  78         if (ret < 0) {
  79                 DRM_ERROR("failed to create iommu mapping.\n");
  80                 goto err_free_private;
  81         }
  82
  83         drm_mode_config_init(dev);
  84
  85         exynos_drm_mode_config_init(dev);
  86
  87         for (nr = 0; nr < MAX_PLANE; nr++) {
  88                 struct drm_plane *plane;
  89                 unsigned long possible_crtcs = (1 << MAX_CRTC) - 1;
  90
  91                 plane = exynos_plane_init(dev, possible_crtcs, false);
  92                 if (!plane)
  93                         goto err_mode_config_cleanup;
  94         }
  95
  96         /* init kms poll for handling hpd */
  97         drm_kms_helper_poll_init(dev);
  98
  99         ret = drm_vblank_init(dev, MAX_CRTC);
 100         if (ret)
 101                 goto err_mode_config_cleanup;
 102
 103         /* setup possible_clones. */
 104         exynos_drm_encoder_setup(dev);
 105
 106         drm_vblank_offdelay = VBLANK_OFF_DELAY;
 107
 108         platform_set_drvdata(dev->platformdev, dev);
 109
 110         /* Try to bind all sub drivers. */
 111         ret = component_bind_all(dev->dev, dev);
 112         if (ret)
 113                 goto err_cleanup_vblank;
 114
 115         /* Probe non kms sub drivers and virtual display driver. */
 116         ret = exynos_drm_device_subdrv_probe(dev);
 117         if (ret)
 118                 goto err_unbind_all;
 119
 120         /* force connectors detection */
 121         drm_helper_hpd_irq_event(dev);
 122
 123         return 0;
 124
 125 err_unbind_all:
 126         component_unbind_all(dev->dev, dev);
 127 err_cleanup_vblank:
 128         drm_vblank_cleanup(dev);
 129 err_mode_config_cleanup:
 130         drm_mode_config_cleanup(dev);
 131         drm_release_iommu_mapping(dev);
 132 err_free_private:
 133         kfree(private);
 134
 135         return ret;
 136 }
 137
 138 static int exynos_drm_unload(struct drm_device *dev)
 139 {
 140         exynos_drm_device_subdrv_remove(dev);
 141
 142         exynos_drm_fbdev_fini(dev);
 143         drm_vblank_cleanup(dev);
 144         drm_kms_helper_poll_fini(dev);
 145         drm_mode_config_cleanup(dev);
 146
 147         drm_release_iommu_mapping(dev);
 148         kfree(dev->dev_private);
 149
 150         component_unbind_all(dev->dev, dev);
 151         dev->dev_private = NULL;
 152
 153         return 0;
 154 }
 155
 156 static const struct file_operations exynos_drm_gem_fops = {
 157         .mmap = exynos_drm_gem_mmap_buffer,
 158 };
 159
 160 static int exynos_drm_suspend(struct drm_device *dev, pm_message_t state)
 161 {
 162         struct drm_connector *connector;
 163
 164         drm_modeset_lock_all(dev);
 165         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 166                 int old_dpms = connector->dpms;
 167
 168                 if (connector->funcs->dpms)
 169                         connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF);
 170
 171                 /* Set the old mode back to the connector for resume */
 172                 connector->dpms = old_dpms;
 173         }
 174         drm_modeset_unlock_all(dev);
 175
 176         return 0;
 177 }
 178
 179 static int exynos_drm_resume(struct drm_device *dev)
 180 {
 181         struct drm_connector *connector;
 182
 183         drm_modeset_lock_all(dev);
 184         list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
 185                 if (connector->funcs->dpms)
 186                         connector->funcs->dpms(connector, connector->dpms);
 187         }
 188         drm_modeset_unlock_all(dev);
 189
 190         drm_helper_resume_force_mode(dev);
 191
 192         return 0;
 193 }
 194
 195 static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
 196 {
 197         struct drm_exynos_file_private *file_priv;
 198         struct file *anon_filp;
 199         int ret;
 200
 201         file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
 202         if (!file_priv)
 203                 return -ENOMEM;
 204
 205         file->driver_priv = file_priv;
 206
 207         ret = exynos_drm_subdrv_open(dev, file);
 208         if (ret)
 209                 goto err_file_priv_free;
 210
 211         anon_filp = anon_inode_getfile("exynos_gem", &exynos_drm_gem_fops,
 212                                         NULL, 0);
 213         if (IS_ERR(anon_filp)) {
 214                 ret = PTR_ERR(anon_filp);
 215                 goto err_subdrv_close;
 216         }
 217
 218         anon_filp->f_mode = FMODE_READ | FMODE_WRITE;
 219         file_priv->anon_filp = anon_filp;
 220
 221         return ret;
 222
 223 err_subdrv_close:
 224         exynos_drm_subdrv_close(dev, file);
 225
 226 err_file_priv_free:
 227         kfree(file_priv);
 228         file->driver_priv = NULL;
 229         return ret;
 230 }
 231
 232 static void exynos_drm_preclose(struct drm_device *dev,
 233                                         struct drm_file *file)
 234 {
 235         exynos_drm_subdrv_close(dev, file);
 236 }
 237
 238 static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
 239 {
 240         struct exynos_drm_private *private = dev->dev_private;
 241         struct drm_exynos_file_private *file_priv;
 242         struct drm_pending_vblank_event *v, *vt;
 243         struct drm_pending_event *e, *et;
 244         unsigned long flags;
 245
 246         if (!file->driver_priv)
 247                 return;
 248
 249         /* Release all events not unhandled by page flip handler. */
 250         spin_lock_irqsave(&dev->event_lock, flags);
 251         list_for_each_entry_safe(v, vt, &private->pageflip_event_list,
 252                         base.link) {
 253                 if (v->base.file_priv == file) {
 254                         list_del(&v->base.link);
 255                         drm_vblank_put(dev, v->pipe);
 256                         v->base.destroy(&v->base);
 257                 }
 258         }
 259
 260         /* Release all events handled by page flip handler but not freed. */
 261         list_for_each_entry_safe(e, et, &file->event_list, link) {
 262                 list_del(&e->link);
 263                 e->destroy(e);
 264         }
 265         spin_unlock_irqrestore(&dev->event_lock, flags);
 266
 267         file_priv = file->driver_priv;
 268         if (file_priv->anon_filp)
 269                 fput(file_priv->anon_filp);
 270
 271         kfree(file->driver_priv);
 272         file->driver_priv = NULL;
 273 }
 274
 275 static void exynos_drm_lastclose(struct drm_device *dev)
 276 {
 277         exynos_drm_fbdev_restore_mode(dev);
 278 }
 279
 280 static const struct vm_operations_struct exynos_drm_gem_vm_ops = {
 281         .fault = exynos_drm_gem_fault,
 282         .open = drm_gem_vm_open,
 283         .close = drm_gem_vm_close,
 284 };
 285
 286 static const struct drm_ioctl_desc exynos_ioctls[] = {
 287         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
 288                         DRM_UNLOCKED | DRM_AUTH),
 289         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP_OFFSET,
 290                         exynos_drm_gem_map_offset_ioctl, DRM_UNLOCKED |
 291                         DRM_AUTH),
 292         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
 293                         exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
 294         DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET,
 295                         exynos_drm_gem_get_ioctl, DRM_UNLOCKED),
 296         DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION,
 297                         vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH),
 298         DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER,
 299                         exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH),
 300         DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST,
 301                         exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH),
 302         DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC,
 303                         exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH),
 304         DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY,
 305                         exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH),
 306         DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY,
 307                         exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH),
 308         DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF,
 309                         exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH),
 310         DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL,
 311                         exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH),
 312 };
 313
 314 static const struct file_operations exynos_drm_driver_fops = {
 315         .owner          = THIS_MODULE,
 316         .open           = drm_open,
 317         .mmap           = exynos_drm_gem_mmap,
 318         .poll           = drm_poll,
 319         .read           = drm_read,
 320         .unlocked_ioctl = drm_ioctl,
 321 #ifdef CONFIG_COMPAT
 322         .compat_ioctl = drm_compat_ioctl,
 323 #endif
 324         .release        = drm_release,
 325 };
 326
 327 static struct drm_driver exynos_drm_driver = {
 328         .driver_features        = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
 329         .load                   = exynos_drm_load,
 330         .unload                 = exynos_drm_unload,
 331         .suspend                = exynos_drm_suspend,
 332         .resume                 = exynos_drm_resume,
 333         .open                   = exynos_drm_open,
 334         .preclose               = exynos_drm_preclose,
 335         .lastclose              = exynos_drm_lastclose,
 336         .postclose              = exynos_drm_postclose,
 337         .get_vblank_counter     = drm_vblank_count,
 338         .enable_vblank          = exynos_drm_crtc_enable_vblank,
 339         .disable_vblank         = exynos_drm_crtc_disable_vblank,
 340         .gem_free_object        = exynos_drm_gem_free_object,
 341         .gem_vm_ops             = &exynos_drm_gem_vm_ops,
 342         .dumb_create            = exynos_drm_gem_dumb_create,
 343         .dumb_map_offset        = exynos_drm_gem_dumb_map_offset,
 344         .dumb_destroy           = drm_gem_dumb_destroy,
 345         .prime_handle_to_fd     = drm_gem_prime_handle_to_fd,
 346         .prime_fd_to_handle     = drm_gem_prime_fd_to_handle,
 347         .gem_prime_export       = exynos_dmabuf_prime_export,
 348         .gem_prime_import       = exynos_dmabuf_prime_import,
 349         .ioctls                 = exynos_ioctls,
 350         .num_ioctls             = ARRAY_SIZE(exynos_ioctls),
 351         .fops                   = &exynos_drm_driver_fops,
 352         .name   = DRIVER_NAME,
 353         .desc   = DRIVER_DESC,
 354         .date   = DRIVER_DATE,
 355         .major  = DRIVER_MAJOR,
 356         .minor  = DRIVER_MINOR,
 357 };
 358
 359 #ifdef CONFIG_PM_SLEEP
 360 static int exynos_drm_sys_suspend(struct device *dev)
 361 {
 362         struct drm_device *drm_dev = dev_get_drvdata(dev);
 363         pm_message_t message;
 364
 365         if (pm_runtime_suspended(dev))
 366                 return 0;
 367
 368         message.event = PM_EVENT_SUSPEND;
 369         return exynos_drm_suspend(drm_dev, message);
 370 }
 371
 372 static int exynos_drm_sys_resume(struct device *dev)
 373 {
 374         struct drm_device *drm_dev = dev_get_drvdata(dev);
 375
 376         if (pm_runtime_suspended(dev))
 377                 return 0;
 378
 379         return exynos_drm_resume(drm_dev);
 380 }
 381 #endif
 382
 383 static const struct dev_pm_ops exynos_drm_pm_ops = {
 384         SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_sys_suspend, exynos_drm_sys_resume)
 385 };
 386
 387 int exynos_drm_component_add(struct device *dev,
 388                                 enum exynos_drm_device_type dev_type,
 389                                 enum exynos_drm_output_type out_type)
 390 {
 391         struct component_dev *cdev;
 392
 393         if (dev_type != EXYNOS_DEVICE_TYPE_CRTC &&
 394                         dev_type != EXYNOS_DEVICE_TYPE_CONNECTOR) {
 395                 DRM_ERROR("invalid device type.\n");
 396                 return -EINVAL;
 397         }
 398
 399         mutex_lock(&drm_component_lock);
 400
 401         /*
 402          * Make sure to check if there is a component which has two device
 403          * objects, for connector and for encoder/connector.
 404          * It should make sure that crtc and encoder/connector drivers are
 405          * ready before exynos drm core binds them.
 406          */
 407         list_for_each_entry(cdev, &drm_component_list, list) {
 408                 if (cdev->out_type == out_type) {
 409                         /*
 410                          * If crtc and encoder/connector device objects are
 411                          * added already just return.
 412                          */
 413                         if (cdev->dev_type_flag == (EXYNOS_DEVICE_TYPE_CRTC |
 414                                                 EXYNOS_DEVICE_TYPE_CONNECTOR)) {
 415                                 mutex_unlock(&drm_component_lock);
 416                                 return 0;
 417                         }
 418
 419                         if (dev_type == EXYNOS_DEVICE_TYPE_CRTC) {
 420                                 cdev->crtc_dev = dev;
 421                                 cdev->dev_type_flag |= dev_type;
 422                         }
 423
 424                         if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR) {
 425                                 cdev->conn_dev = dev;
 426                                 cdev->dev_type_flag |= dev_type;
 427                         }
 428
 429                         mutex_unlock(&drm_component_lock);
 430                         return 0;
 431                 }
 432         }
 433
 434         mutex_unlock(&drm_component_lock);
 435
 436         cdev = kzalloc(sizeof(*cdev), GFP_KERNEL);
 437         if (!cdev)
 438                 return -ENOMEM;
 439
 440         if (dev_type == EXYNOS_DEVICE_TYPE_CRTC)
 441                 cdev->crtc_dev = dev;
 442         if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR)
 443                 cdev->conn_dev = dev;
 444
 445         cdev->out_type = out_type;
 446         cdev->dev_type_flag = dev_type;
 447
 448         mutex_lock(&drm_component_lock);
 449         list_add_tail(&cdev->list, &drm_component_list);
 450         mutex_unlock(&drm_component_lock);
 451
 452         return 0;
 453 }
 454
 455 void exynos_drm_component_del(struct device *dev,
 456                                 enum exynos_drm_device_type dev_type)
 457 {
 458         struct component_dev *cdev, *next;
 459
 460         mutex_lock(&drm_component_lock);
 461
 462         list_for_each_entry_safe(cdev, next, &drm_component_list, list) {
 463                 if (dev_type == EXYNOS_DEVICE_TYPE_CRTC) {
 464                         if (cdev->crtc_dev == dev) {
 465                                 cdev->crtc_dev = NULL;
 466                                 cdev->dev_type_flag &= ~dev_type;
 467                         }
 468                 }
 469
 470                 if (dev_type == EXYNOS_DEVICE_TYPE_CONNECTOR) {
 471                         if (cdev->conn_dev == dev) {
 472                                 cdev->conn_dev = NULL;
 473                                 cdev->dev_type_flag &= ~dev_type;
 474                         }
 475                 }
 476
 477                 /*
 478                  * Release cdev object only in case that both of crtc and
 479                  * encoder/connector device objects are NULL.
 480                  */
 481                 if (!cdev->crtc_dev && !cdev->conn_dev) {
 482                         list_del(&cdev->list);
 483                         kfree(cdev);
 484                 }
 485
 486                 break;
 487         }
 488
 489         mutex_unlock(&drm_component_lock);
 490 }
 491
 492 static int compare_of(struct device *dev, void *data)
 493 {
 494         return dev == (struct device *)data;
 495 }
 496
 497 static int exynos_drm_add_components(struct device *dev, struct master *m)
 498 {
 499         struct component_dev *cdev;
 500         unsigned int attach_cnt = 0;
 501
 502         mutex_lock(&drm_component_lock);
 503
 504         list_for_each_entry(cdev, &drm_component_list, list) {
 505                 int ret;
 506
 507                 /*
 508                  * Add components to master only in case that crtc and
 509                  * encoder/connector device objects exist.
 510                  */
 511                 if (!cdev->crtc_dev || !cdev->conn_dev)
 512                         continue;
 513
 514                 attach_cnt++;
 515
 516                 mutex_unlock(&drm_component_lock);
 517
 518                 /*
 519                  * fimd and dpi modules have same device object so add
 520                  * only crtc device object in this case.
 521                  *
 522                  * TODO. if dpi module follows driver-model driver then
 523                  * below codes can be removed.
 524                  */
 525                 if (cdev->crtc_dev == cdev->conn_dev) {
 526                         ret = component_master_add_child(m, compare_of,
 527                                         cdev->crtc_dev);
 528                         if (ret < 0)
 529                                 return ret;
 530
 531                         goto out_lock;
 532                 }
 533
 534                 /*
 535                  * Do not chage below call order.
 536                  * crtc device first should be added to master because
 537                  * connector/encoder need pipe number of crtc when they
 538                  * are created.
 539                  */
 540                 ret = component_master_add_child(m, compare_of, cdev->crtc_dev);
 541                 ret |= component_master_add_child(m, compare_of,
 542                                                         cdev->conn_dev);
 543                 if (ret < 0)
 544                         return ret;
 545
 546 out_lock:
 547                 mutex_lock(&drm_component_lock);
 548         }
 549
 550         mutex_unlock(&drm_component_lock);
 551
 552         return attach_cnt ? 0 : -ENODEV;
 553 }
 554
 555 static int exynos_drm_bind(struct device *dev)
 556 {
 557         return drm_platform_init(&exynos_drm_driver, to_platform_device(dev));
 558 }
 559
 560 static void exynos_drm_unbind(struct device *dev)
 561 {
 562         drm_put_dev(dev_get_drvdata(dev));
 563 }
 564
 565 static const struct component_master_ops exynos_drm_ops = {
 566         .add_components = exynos_drm_add_components,
 567         .bind           = exynos_drm_bind,
 568         .unbind         = exynos_drm_unbind,
 569 };
 570
 571 static int exynos_drm_platform_probe(struct platform_device *pdev)
 572 {
 573         int ret;
 574
 575         pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 576         exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls);
 577
 578 #ifdef CONFIG_DRM_EXYNOS_FIMD
 579         ret = platform_driver_register(&fimd_driver);
 580         if (ret < 0)
 581                 return ret;
 582 #endif
 583
 584 #ifdef CONFIG_DRM_EXYNOS_DP
 585         ret = platform_driver_register(&dp_driver);
 586         if (ret < 0)
 587                 goto err_unregister_fimd_drv;
 588 #endif
 589
 590 #ifdef CONFIG_DRM_EXYNOS_DSI
 591         ret = platform_driver_register(&dsi_driver);
 592         if (ret < 0)
 593                 goto err_unregister_dp_drv;
 594 #endif
 595
 596 #ifdef CONFIG_DRM_EXYNOS_HDMI
 597         ret = platform_driver_register(&mixer_driver);
 598         if (ret < 0)
 599                 goto err_unregister_dsi_drv;
 600         ret = platform_driver_register(&hdmi_driver);
 601         if (ret < 0)
 602                 goto err_unregister_mixer_drv;
 603 #endif
 604
 605 #ifdef CONFIG_DRM_EXYNOS_G2D
 606         ret = platform_driver_register(&g2d_driver);
 607         if (ret < 0)
 608                 goto err_unregister_hdmi_drv;
 609 #endif
 610
 611 #ifdef CONFIG_DRM_EXYNOS_FIMC
 612         ret = platform_driver_register(&fimc_driver);
 613         if (ret < 0)
 614                 goto err_unregister_g2d_drv;
 615 #endif
 616
 617 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
 618         ret = platform_driver_register(&rotator_driver);
 619         if (ret < 0)
 620                 goto err_unregister_fimc_drv;
 621 #endif
 622
 623 #ifdef CONFIG_DRM_EXYNOS_GSC
 624         ret = platform_driver_register(&gsc_driver);
 625         if (ret < 0)
 626                 goto err_unregister_rotator_drv;
 627 #endif
 628
 629 #ifdef CONFIG_DRM_EXYNOS_IPP
 630         ret = platform_driver_register(&ipp_driver);
 631         if (ret < 0)
 632                 goto err_unregister_gsc_drv;
 633
 634         ret = exynos_platform_device_ipp_register();
 635         if (ret < 0)
 636                 goto err_unregister_ipp_drv;
 637 #endif
 638
 639         ret = component_master_add(&pdev->dev, &exynos_drm_ops);
 640         if (ret < 0)
 641                 DRM_DEBUG_KMS("re-tried by last sub driver probed later.\n");
 642
 643         return 0;
 644
 645 #ifdef CONFIG_DRM_EXYNOS_IPP
 646 err_unregister_ipp_drv:
 647         platform_driver_unregister(&ipp_driver);
 648 err_unregister_gsc_drv:
 649 #endif
 650
 651 #ifdef CONFIG_DRM_EXYNOS_GSC
 652         platform_driver_unregister(&gsc_driver);
 653 err_unregister_rotator_drv:
 654 #endif
 655
 656 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
 657         platform_driver_unregister(&rotator_driver);
 658 err_unregister_fimc_drv:
 659 #endif
 660
 661 #ifdef CONFIG_DRM_EXYNOS_FIMC
 662         platform_driver_unregister(&fimc_driver);
 663 err_unregister_g2d_drv:
 664 #endif
 665
 666 #ifdef CONFIG_DRM_EXYNOS_G2D
 667         platform_driver_unregister(&g2d_driver);
 668 err_unregister_hdmi_drv:
 669 #endif
 670
 671 #ifdef CONFIG_DRM_EXYNOS_HDMI
 672         platform_driver_unregister(&hdmi_driver);
 673 err_unregister_mixer_drv:
 674         platform_driver_unregister(&mixer_driver);
 675 err_unregister_dsi_drv:
 676 #endif
 677
 678 #ifdef CONFIG_DRM_EXYNOS_DSI
 679         platform_driver_unregister(&dsi_driver);
 680 err_unregister_dp_drv:
 681 #endif
 682
 683 #ifdef CONFIG_DRM_EXYNOS_DP
 684         platform_driver_unregister(&dp_driver);
 685 err_unregister_fimd_drv:
 686 #endif
 687
 688 #ifdef CONFIG_DRM_EXYNOS_FIMD
 689         platform_driver_unregister(&fimd_driver);
 690 #endif
 691         return ret;
 692 }
 693
 694 static int exynos_drm_platform_remove(struct platform_device *pdev)
 695 {
 696 #ifdef CONFIG_DRM_EXYNOS_IPP
 697         exynos_platform_device_ipp_unregister();
 698         platform_driver_unregister(&ipp_driver);
 699 #endif
 700
 701 #ifdef CONFIG_DRM_EXYNOS_GSC
 702         platform_driver_unregister(&gsc_driver);
 703 #endif
 704
 705 #ifdef CONFIG_DRM_EXYNOS_ROTATOR
 706         platform_driver_unregister(&rotator_driver);
 707 #endif
 708
 709 #ifdef CONFIG_DRM_EXYNOS_FIMC
 710         platform_driver_unregister(&fimc_driver);
 711 #endif
 712
 713 #ifdef CONFIG_DRM_EXYNOS_G2D
 714         platform_driver_unregister(&g2d_driver);
 715 #endif
 716
 717 #ifdef CONFIG_DRM_EXYNOS_HDMI
 718         platform_driver_unregister(&mixer_driver);
 719         platform_driver_unregister(&hdmi_driver);
 720 #endif
 721
 722 #ifdef CONFIG_DRM_EXYNOS_FIMD
 723         platform_driver_unregister(&fimd_driver);
 724 #endif
 725
 726 #ifdef CONFIG_DRM_EXYNOS_DSI
 727         platform_driver_unregister(&dsi_driver);
 728 #endif
 729
 730 #ifdef CONFIG_DRM_EXYNOS_DP
 731         platform_driver_unregister(&dp_driver);
 732 #endif
 733         component_master_del(&pdev->dev, &exynos_drm_ops);
 734         return 0;
 735 }
 736
 737 static struct platform_driver exynos_drm_platform_driver = {
 738         .probe  = exynos_drm_platform_probe,
 739         .remove = exynos_drm_platform_remove,
 740         .driver = {
 741                 .owner  = THIS_MODULE,
 742                 .name   = "exynos-drm",
 743                 .pm     = &exynos_drm_pm_ops,
 744         },
 745 };
 746
 747 static int exynos_drm_init(void)
 748 {
 749         int ret;
 750
 751         exynos_drm_pdev = platform_device_register_simple("exynos-drm", -1,
 752                                                                 NULL, 0);
 753         if (IS_ERR(exynos_drm_pdev))
 754                 return PTR_ERR(exynos_drm_pdev);
 755
 756 #ifdef CONFIG_DRM_EXYNOS_VIDI
 757         ret = exynos_drm_probe_vidi();
 758         if (ret < 0)
 759                 goto err_unregister_pd;
 760 #endif
 761
 762         ret = platform_driver_register(&exynos_drm_platform_driver);
 763         if (ret)
 764                 goto err_remove_vidi;
 765
 766         return 0;
 767
 768 err_remove_vidi:
 769 #ifdef CONFIG_DRM_EXYNOS_VIDI
 770         exynos_drm_remove_vidi();
 771
 772 err_unregister_pd:
 773 #endif
 774         platform_device_unregister(exynos_drm_pdev);
 775
 776         return ret;
 777 }
 778
 779 static void exynos_drm_exit(void)
 780 {
 781         platform_driver_unregister(&exynos_drm_platform_driver);
 782 #ifdef CONFIG_DRM_EXYNOS_VIDI
 783         exynos_drm_remove_vidi();
 784 #endif
 785         platform_device_unregister(exynos_drm_pdev);
 786 }
 787
 788 module_init(exynos_drm_init);
 789 module_exit(exynos_drm_exit);
 790
 791 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
 792 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
 793 MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
 794 MODULE_DESCRIPTION("Samsung SoC DRM Driver");
 795 MODULE_LICENSE("GPL");