drivers/gpu/drm/mediatek/mtk_drm_drv.c

   1 /*
   2  * Copyright (c) 2015 MediaTek Inc.
   3  * Author: YT SHEN <yt.shen@mediatek.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #include <drm/drmP.h>
  16 #include <drm/drm_atomic.h>
  17 #include <drm/drm_atomic_helper.h>
  18 #include <drm/drm_fb_helper.h>
  19 #include <drm/drm_gem.h>
  20 #include <drm/drm_gem_cma_helper.h>
  21 #include <drm/drm_of.h>
  22 #include <drm/drm_probe_helper.h>
  23 #include <linux/component.h>
  24 #include <linux/iommu.h>
  25 #include <linux/of_address.h>
  26 #include <linux/of_platform.h>
  27 #include <linux/pm_runtime.h>
  28
  29 #include "mtk_drm_crtc.h"
  30 #include "mtk_drm_ddp.h"
  31 #include "mtk_drm_ddp_comp.h"
  32 #include "mtk_drm_drv.h"
  33 #include "mtk_drm_fb.h"
  34 #include "mtk_drm_gem.h"
  35
  36 #define DRIVER_NAME "mediatek"
  37 #define DRIVER_DESC "Mediatek SoC DRM"
  38 #define DRIVER_DATE "20150513"
  39 #define DRIVER_MAJOR 1
  40 #define DRIVER_MINOR 0
  41
  42 static void mtk_atomic_schedule(struct mtk_drm_private *private,
  43                                 struct drm_atomic_state *state)
  44 {
  45         private->commit.state = state;
  46         schedule_work(&private->commit.work);
  47 }
  48
  49 static void mtk_atomic_wait_for_fences(struct drm_atomic_state *state)
  50 {
  51         struct drm_plane *plane;
  52         struct drm_plane_state *new_plane_state;
  53         int i;
  54
  55         for_each_new_plane_in_state(state, plane, new_plane_state, i)
  56                 mtk_fb_wait(new_plane_state->fb);
  57 }
  58
  59 static void mtk_atomic_complete(struct mtk_drm_private *private,
  60                                 struct drm_atomic_state *state)
  61 {
  62         struct drm_device *drm = private->drm;
  63
  64         mtk_atomic_wait_for_fences(state);
  65
  66         /*
  67          * Mediatek drm supports runtime PM, so plane registers cannot be
  68          * written when their crtc is disabled.
  69          *
  70          * The comment for drm_atomic_helper_commit states:
  71          *     For drivers supporting runtime PM the recommended sequence is
  72          *
  73          *     drm_atomic_helper_commit_modeset_disables(dev, state);
  74          *     drm_atomic_helper_commit_modeset_enables(dev, state);
  75          *     drm_atomic_helper_commit_planes(dev, state,
  76          *                                     DRM_PLANE_COMMIT_ACTIVE_ONLY);
  77          *
  78          * See the kerneldoc entries for these three functions for more details.
  79          */
  80         drm_atomic_helper_commit_modeset_disables(drm, state);
  81         drm_atomic_helper_commit_modeset_enables(drm, state);
  82         drm_atomic_helper_commit_planes(drm, state,
  83                                         DRM_PLANE_COMMIT_ACTIVE_ONLY);
  84
  85         drm_atomic_helper_wait_for_vblanks(drm, state);
  86
  87         drm_atomic_helper_cleanup_planes(drm, state);
  88         drm_atomic_state_put(state);
  89 }
  90
  91 static void mtk_atomic_work(struct work_struct *work)
  92 {
  93         struct mtk_drm_private *private = container_of(work,
  94                         struct mtk_drm_private, commit.work);
  95
  96         mtk_atomic_complete(private, private->commit.state);
  97 }
  98
  99 static int mtk_atomic_commit(struct drm_device *drm,
 100                              struct drm_atomic_state *state,
 101                              bool async)
 102 {
 103         struct mtk_drm_private *private = drm->dev_private;
 104         int ret;
 105
 106         ret = drm_atomic_helper_prepare_planes(drm, state);
 107         if (ret)
 108                 return ret;
 109
 110         mutex_lock(&private->commit.lock);
 111         flush_work(&private->commit.work);
 112
 113         ret = drm_atomic_helper_swap_state(state, true);
 114         if (ret) {
 115                 mutex_unlock(&private->commit.lock);
 116                 drm_atomic_helper_cleanup_planes(drm, state);
 117                 return ret;
 118         }
 119
 120         drm_atomic_state_get(state);
 121         if (async)
 122                 mtk_atomic_schedule(private, state);
 123         else
 124                 mtk_atomic_complete(private, state);
 125
 126         mutex_unlock(&private->commit.lock);
 127
 128         return 0;
 129 }
 130
 131 static const struct drm_mode_config_funcs mtk_drm_mode_config_funcs = {
 132         .fb_create = mtk_drm_mode_fb_create,
 133         .atomic_check = drm_atomic_helper_check,
 134         .atomic_commit = mtk_atomic_commit,
 135 };
 136
 137 static const enum mtk_ddp_comp_id mt2701_mtk_ddp_main[] = {
 138         DDP_COMPONENT_OVL0,
 139         DDP_COMPONENT_RDMA0,
 140         DDP_COMPONENT_COLOR0,
 141         DDP_COMPONENT_BLS,
 142         DDP_COMPONENT_DSI0,
 143 };
 144
 145 static const enum mtk_ddp_comp_id mt2701_mtk_ddp_ext[] = {
 146         DDP_COMPONENT_RDMA1,
 147         DDP_COMPONENT_DPI0,
 148 };
 149
 150 static const enum mtk_ddp_comp_id mt2712_mtk_ddp_main[] = {
 151         DDP_COMPONENT_OVL0,
 152         DDP_COMPONENT_COLOR0,
 153         DDP_COMPONENT_AAL0,
 154         DDP_COMPONENT_OD0,
 155         DDP_COMPONENT_RDMA0,
 156         DDP_COMPONENT_DPI0,
 157         DDP_COMPONENT_PWM0,
 158 };
 159
 160 static const enum mtk_ddp_comp_id mt2712_mtk_ddp_ext[] = {
 161         DDP_COMPONENT_OVL1,
 162         DDP_COMPONENT_COLOR1,
 163         DDP_COMPONENT_AAL1,
 164         DDP_COMPONENT_OD1,
 165         DDP_COMPONENT_RDMA1,
 166         DDP_COMPONENT_DPI1,
 167         DDP_COMPONENT_PWM1,
 168 };
 169
 170 static const enum mtk_ddp_comp_id mt2712_mtk_ddp_third[] = {
 171         DDP_COMPONENT_RDMA2,
 172         DDP_COMPONENT_DSI3,
 173         DDP_COMPONENT_PWM2,
 174 };
 175
 176 static const enum mtk_ddp_comp_id mt8173_mtk_ddp_main[] = {
 177         DDP_COMPONENT_OVL0,
 178         DDP_COMPONENT_COLOR0,
 179         DDP_COMPONENT_AAL0,
 180         DDP_COMPONENT_OD0,
 181         DDP_COMPONENT_RDMA0,
 182         DDP_COMPONENT_UFOE,
 183         DDP_COMPONENT_DSI0,
 184         DDP_COMPONENT_PWM0,
 185 };
 186
 187 static const enum mtk_ddp_comp_id mt8173_mtk_ddp_ext[] = {
 188         DDP_COMPONENT_OVL1,
 189         DDP_COMPONENT_COLOR1,
 190         DDP_COMPONENT_GAMMA,
 191         DDP_COMPONENT_RDMA1,
 192         DDP_COMPONENT_DPI0,
 193 };
 194
 195 static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = {
 196         .main_path = mt2701_mtk_ddp_main,
 197         .main_len = ARRAY_SIZE(mt2701_mtk_ddp_main),
 198         .ext_path = mt2701_mtk_ddp_ext,
 199         .ext_len = ARRAY_SIZE(mt2701_mtk_ddp_ext),
 200         .shadow_register = true,
 201 };
 202
 203 static const struct mtk_mmsys_driver_data mt2712_mmsys_driver_data = {
 204         .main_path = mt2712_mtk_ddp_main,
 205         .main_len = ARRAY_SIZE(mt2712_mtk_ddp_main),
 206         .ext_path = mt2712_mtk_ddp_ext,
 207         .ext_len = ARRAY_SIZE(mt2712_mtk_ddp_ext),
 208         .third_path = mt2712_mtk_ddp_third,
 209         .third_len = ARRAY_SIZE(mt2712_mtk_ddp_third),
 210 };
 211
 212 static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = {
 213         .main_path = mt8173_mtk_ddp_main,
 214         .main_len = ARRAY_SIZE(mt8173_mtk_ddp_main),
 215         .ext_path = mt8173_mtk_ddp_ext,
 216         .ext_len = ARRAY_SIZE(mt8173_mtk_ddp_ext),
 217 };
 218
 219 static int mtk_drm_kms_init(struct drm_device *drm)
 220 {
 221         struct mtk_drm_private *private = drm->dev_private;
 222         struct platform_device *pdev;
 223         struct device_node *np;
 224         int ret;
 225
 226         if (!iommu_present(&platform_bus_type))
 227                 return -EPROBE_DEFER;
 228
 229         pdev = of_find_device_by_node(private->mutex_node);
 230         if (!pdev) {
 231                 dev_err(drm->dev, "Waiting for disp-mutex device %pOF\n",
 232                         private->mutex_node);
 233                 of_node_put(private->mutex_node);
 234                 return -EPROBE_DEFER;
 235         }
 236         private->mutex_dev = &pdev->dev;
 237
 238         drm_mode_config_init(drm);
 239
 240         drm->mode_config.min_width = 64;
 241         drm->mode_config.min_height = 64;
 242
 243         /*
 244          * set max width and height as default value(4096x4096).
 245          * this value would be used to check framebuffer size limitation
 246          * at drm_mode_addfb().
 247          */
 248         drm->mode_config.max_width = 4096;
 249         drm->mode_config.max_height = 4096;
 250         drm->mode_config.funcs = &mtk_drm_mode_config_funcs;
 251
 252         ret = component_bind_all(drm->dev, drm);
 253         if (ret)
 254                 goto err_config_cleanup;
 255
 256         /*
 257          * We currently support two fixed data streams, each optional,
 258          * and each statically assigned to a crtc:
 259          * OVL0 -> COLOR0 -> AAL -> OD -> RDMA0 -> UFOE -> DSI0 ...
 260          */
 261         ret = mtk_drm_crtc_create(drm, private->data->main_path,
 262                                   private->data->main_len);
 263         if (ret < 0)
 264                 goto err_component_unbind;
 265         /* ... and OVL1 -> COLOR1 -> GAMMA -> RDMA1 -> DPI0. */
 266         ret = mtk_drm_crtc_create(drm, private->data->ext_path,
 267                                   private->data->ext_len);
 268         if (ret < 0)
 269                 goto err_component_unbind;
 270
 271         ret = mtk_drm_crtc_create(drm, private->data->third_path,
 272                                   private->data->third_len);
 273         if (ret < 0)
 274                 goto err_component_unbind;
 275
 276         /* Use OVL device for all DMA memory allocations */
 277         np = private->comp_node[private->data->main_path[0]] ?:
 278              private->comp_node[private->data->ext_path[0]];
 279         pdev = of_find_device_by_node(np);
 280         if (!pdev) {
 281                 ret = -ENODEV;
 282                 dev_err(drm->dev, "Need at least one OVL device\n");
 283                 goto err_component_unbind;
 284         }
 285
 286         private->dma_dev = &pdev->dev;
 287
 288         /*
 289          * We don't use the drm_irq_install() helpers provided by the DRM
 290          * core, so we need to set this manually in order to allow the
 291          * DRM_IOCTL_WAIT_VBLANK to operate correctly.
 292          */
 293         drm->irq_enabled = true;
 294         ret = drm_vblank_init(drm, MAX_CRTC);
 295         if (ret < 0)
 296                 goto err_component_unbind;
 297
 298         drm_kms_helper_poll_init(drm);
 299         drm_mode_config_reset(drm);
 300
 301         return 0;
 302
 303 err_component_unbind:
 304         component_unbind_all(drm->dev, drm);
 305 err_config_cleanup:
 306         drm_mode_config_cleanup(drm);
 307
 308         return ret;
 309 }
 310
 311 static void mtk_drm_kms_deinit(struct drm_device *drm)
 312 {
 313         drm_kms_helper_poll_fini(drm);
 314
 315         component_unbind_all(drm->dev, drm);
 316         drm_mode_config_cleanup(drm);
 317 }
 318
 319 static const struct file_operations mtk_drm_fops = {
 320         .owner = THIS_MODULE,
 321         .open = drm_open,
 322         .release = drm_release,
 323         .unlocked_ioctl = drm_ioctl,
 324         .mmap = mtk_drm_gem_mmap,
 325         .poll = drm_poll,
 326         .read = drm_read,
 327         .compat_ioctl = drm_compat_ioctl,
 328 };
 329
 330 static struct drm_driver mtk_drm_driver = {
 331         .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME |
 332                            DRIVER_ATOMIC,
 333
 334         .gem_free_object_unlocked = mtk_drm_gem_free_object,
 335         .gem_vm_ops = &drm_gem_cma_vm_ops,
 336         .dumb_create = mtk_drm_gem_dumb_create,
 337
 338         .prime_handle_to_fd = drm_gem_prime_handle_to_fd,
 339         .prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 340         .gem_prime_export = drm_gem_prime_export,
 341         .gem_prime_import = drm_gem_prime_import,
 342         .gem_prime_get_sg_table = mtk_gem_prime_get_sg_table,
 343         .gem_prime_import_sg_table = mtk_gem_prime_import_sg_table,
 344         .gem_prime_mmap = mtk_drm_gem_mmap_buf,
 345         .gem_prime_vmap = mtk_drm_gem_prime_vmap,
 346         .gem_prime_vunmap = mtk_drm_gem_prime_vunmap,
 347         .fops = &mtk_drm_fops,
 348
 349         .name = DRIVER_NAME,
 350         .desc = DRIVER_DESC,
 351         .date = DRIVER_DATE,
 352         .major = DRIVER_MAJOR,
 353         .minor = DRIVER_MINOR,
 354 };
 355
 356 static int compare_of(struct device *dev, void *data)
 357 {
 358         return dev->of_node == data;
 359 }
 360
 361 static int mtk_drm_bind(struct device *dev)
 362 {
 363         struct mtk_drm_private *private = dev_get_drvdata(dev);
 364         struct drm_device *drm;
 365         int ret;
 366
 367         drm = drm_dev_alloc(&mtk_drm_driver, dev);
 368         if (IS_ERR(drm))
 369                 return PTR_ERR(drm);
 370
 371         drm->dev_private = private;
 372         private->drm = drm;
 373
 374         ret = mtk_drm_kms_init(drm);
 375         if (ret < 0)
 376                 goto err_free;
 377
 378         ret = drm_dev_register(drm, 0);
 379         if (ret < 0)
 380                 goto err_deinit;
 381
 382         ret = drm_fbdev_generic_setup(drm, 32);
 383         if (ret)
 384                 DRM_ERROR("Failed to initialize fbdev: %d\n", ret);
 385
 386         return 0;
 387
 388 err_deinit:
 389         mtk_drm_kms_deinit(drm);
 390 err_free:
 391         drm_dev_put(drm);
 392         return ret;
 393 }
 394
 395 static void mtk_drm_unbind(struct device *dev)
 396 {
 397         struct mtk_drm_private *private = dev_get_drvdata(dev);
 398
 399         drm_dev_unregister(private->drm);
 400         drm_dev_put(private->drm);
 401         private->drm = NULL;
 402 }
 403
 404 static const struct component_master_ops mtk_drm_ops = {
 405         .bind           = mtk_drm_bind,
 406         .unbind         = mtk_drm_unbind,
 407 };
 408
 409 static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
 410         { .compatible = "mediatek,mt2701-disp-ovl",
 411           .data = (void *)MTK_DISP_OVL },
 412         { .compatible = "mediatek,mt8173-disp-ovl",
 413           .data = (void *)MTK_DISP_OVL },
 414         { .compatible = "mediatek,mt2701-disp-rdma",
 415           .data = (void *)MTK_DISP_RDMA },
 416         { .compatible = "mediatek,mt8173-disp-rdma",
 417           .data = (void *)MTK_DISP_RDMA },
 418         { .compatible = "mediatek,mt8173-disp-wdma",
 419           .data = (void *)MTK_DISP_WDMA },
 420         { .compatible = "mediatek,mt2701-disp-color",
 421           .data = (void *)MTK_DISP_COLOR },
 422         { .compatible = "mediatek,mt8173-disp-color",
 423           .data = (void *)MTK_DISP_COLOR },
 424         { .compatible = "mediatek,mt8173-disp-aal",
 425           .data = (void *)MTK_DISP_AAL},
 426         { .compatible = "mediatek,mt8173-disp-gamma",
 427           .data = (void *)MTK_DISP_GAMMA, },
 428         { .compatible = "mediatek,mt8173-disp-ufoe",
 429           .data = (void *)MTK_DISP_UFOE },
 430         { .compatible = "mediatek,mt2701-dsi",
 431           .data = (void *)MTK_DSI },
 432         { .compatible = "mediatek,mt8173-dsi",
 433           .data = (void *)MTK_DSI },
 434         { .compatible = "mediatek,mt2701-dpi",
 435           .data = (void *)MTK_DPI },
 436         { .compatible = "mediatek,mt8173-dpi",
 437           .data = (void *)MTK_DPI },
 438         { .compatible = "mediatek,mt2701-disp-mutex",
 439           .data = (void *)MTK_DISP_MUTEX },
 440         { .compatible = "mediatek,mt2712-disp-mutex",
 441           .data = (void *)MTK_DISP_MUTEX },
 442         { .compatible = "mediatek,mt8173-disp-mutex",
 443           .data = (void *)MTK_DISP_MUTEX },
 444         { .compatible = "mediatek,mt2701-disp-pwm",
 445           .data = (void *)MTK_DISP_BLS },
 446         { .compatible = "mediatek,mt8173-disp-pwm",
 447           .data = (void *)MTK_DISP_PWM },
 448         { .compatible = "mediatek,mt8173-disp-od",
 449           .data = (void *)MTK_DISP_OD },
 450         { }
 451 };
 452
 453 static int mtk_drm_probe(struct platform_device *pdev)
 454 {
 455         struct device *dev = &pdev->dev;
 456         struct mtk_drm_private *private;
 457         struct resource *mem;
 458         struct device_node *node;
 459         struct component_match *match = NULL;
 460         int ret;
 461         int i;
 462
 463         private = devm_kzalloc(dev, sizeof(*private), GFP_KERNEL);
 464         if (!private)
 465                 return -ENOMEM;
 466
 467         mutex_init(&private->commit.lock);
 468         INIT_WORK(&private->commit.work, mtk_atomic_work);
 469         private->data = of_device_get_match_data(dev);
 470
 471         mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 472         private->config_regs = devm_ioremap_resource(dev, mem);
 473         if (IS_ERR(private->config_regs)) {
 474                 ret = PTR_ERR(private->config_regs);
 475                 dev_err(dev, "Failed to ioremap mmsys-config resource: %d\n",
 476                         ret);
 477                 return ret;
 478         }
 479
 480         /* Iterate over sibling DISP function blocks */
 481         for_each_child_of_node(dev->of_node->parent, node) {
 482                 const struct of_device_id *of_id;
 483                 enum mtk_ddp_comp_type comp_type;
 484                 int comp_id;
 485
 486                 of_id = of_match_node(mtk_ddp_comp_dt_ids, node);
 487                 if (!of_id)
 488                         continue;
 489
 490                 if (!of_device_is_available(node)) {
 491                         dev_dbg(dev, "Skipping disabled component %pOF\n",
 492                                 node);
 493                         continue;
 494                 }
 495
 496                 comp_type = (enum mtk_ddp_comp_type)of_id->data;
 497
 498                 if (comp_type == MTK_DISP_MUTEX) {
 499                         private->mutex_node = of_node_get(node);
 500                         continue;
 501                 }
 502
 503                 comp_id = mtk_ddp_comp_get_id(node, comp_type);
 504                 if (comp_id < 0) {
 505                         dev_warn(dev, "Skipping unknown component %pOF\n",
 506                                  node);
 507                         continue;
 508                 }
 509
 510                 private->comp_node[comp_id] = of_node_get(node);
 511
 512                 /*
 513                  * Currently only the COLOR, OVL, RDMA, DSI, and DPI blocks have
 514                  * separate component platform drivers and initialize their own
 515                  * DDP component structure. The others are initialized here.
 516                  */
 517                 if (comp_type == MTK_DISP_COLOR ||
 518                     comp_type == MTK_DISP_OVL ||
 519                     comp_type == MTK_DISP_RDMA ||
 520                     comp_type == MTK_DSI ||
 521                     comp_type == MTK_DPI) {
 522                         dev_info(dev, "Adding component match for %pOF\n",
 523                                  node);
 524                         drm_of_component_match_add(dev, &match, compare_of,
 525                                                    node);
 526                 } else {
 527                         struct mtk_ddp_comp *comp;
 528
 529                         comp = devm_kzalloc(dev, sizeof(*comp), GFP_KERNEL);
 530                         if (!comp) {
 531                                 ret = -ENOMEM;
 532                                 goto err_node;
 533                         }
 534
 535                         ret = mtk_ddp_comp_init(dev, node, comp, comp_id, NULL);
 536                         if (ret)
 537                                 goto err_node;
 538
 539                         private->ddp_comp[comp_id] = comp;
 540                 }
 541         }
 542
 543         if (!private->mutex_node) {
 544                 dev_err(dev, "Failed to find disp-mutex node\n");
 545                 ret = -ENODEV;
 546                 goto err_node;
 547         }
 548
 549         pm_runtime_enable(dev);
 550
 551         platform_set_drvdata(pdev, private);
 552
 553         ret = component_master_add_with_match(dev, &mtk_drm_ops, match);
 554         if (ret)
 555                 goto err_pm;
 556
 557         return 0;
 558
 559 err_pm:
 560         pm_runtime_disable(dev);
 561 err_node:
 562         of_node_put(private->mutex_node);
 563         for (i = 0; i < DDP_COMPONENT_ID_MAX; i++)
 564                 of_node_put(private->comp_node[i]);
 565         return ret;
 566 }
 567
 568 static int mtk_drm_remove(struct platform_device *pdev)
 569 {
 570         struct mtk_drm_private *private = platform_get_drvdata(pdev);
 571         struct drm_device *drm = private->drm;
 572         int i;
 573
 574         drm_dev_unregister(drm);
 575         mtk_drm_kms_deinit(drm);
 576         drm_dev_put(drm);
 577
 578         component_master_del(&pdev->dev, &mtk_drm_ops);
 579         pm_runtime_disable(&pdev->dev);
 580         of_node_put(private->mutex_node);
 581         for (i = 0; i < DDP_COMPONENT_ID_MAX; i++)
 582                 of_node_put(private->comp_node[i]);
 583
 584         return 0;
 585 }
 586
 587 #ifdef CONFIG_PM_SLEEP
 588 static int mtk_drm_sys_suspend(struct device *dev)
 589 {
 590         struct mtk_drm_private *private = dev_get_drvdata(dev);
 591         struct drm_device *drm = private->drm;
 592         int ret;
 593
 594         ret = drm_mode_config_helper_suspend(drm);
 595         DRM_DEBUG_DRIVER("mtk_drm_sys_suspend\n");
 596
 597         return ret;
 598 }
 599
 600 static int mtk_drm_sys_resume(struct device *dev)
 601 {
 602         struct mtk_drm_private *private = dev_get_drvdata(dev);
 603         struct drm_device *drm = private->drm;
 604         int ret;
 605
 606         ret = drm_mode_config_helper_resume(drm);
 607         DRM_DEBUG_DRIVER("mtk_drm_sys_resume\n");
 608
 609         return ret;
 610 }
 611 #endif
 612
 613 static SIMPLE_DEV_PM_OPS(mtk_drm_pm_ops, mtk_drm_sys_suspend,
 614                          mtk_drm_sys_resume);
 615
 616 static const struct of_device_id mtk_drm_of_ids[] = {
 617         { .compatible = "mediatek,mt2701-mmsys",
 618           .data = &mt2701_mmsys_driver_data},
 619         { .compatible = "mediatek,mt2712-mmsys",
 620           .data = &mt2712_mmsys_driver_data},
 621         { .compatible = "mediatek,mt8173-mmsys",
 622           .data = &mt8173_mmsys_driver_data},
 623         { }
 624 };
 625
 626 static struct platform_driver mtk_drm_platform_driver = {
 627         .probe  = mtk_drm_probe,
 628         .remove = mtk_drm_remove,
 629         .driver = {
 630                 .name   = "mediatek-drm",
 631                 .of_match_table = mtk_drm_of_ids,
 632                 .pm     = &mtk_drm_pm_ops,
 633         },
 634 };
 635
 636 static struct platform_driver * const mtk_drm_drivers[] = {
 637         &mtk_ddp_driver,
 638         &mtk_disp_color_driver,
 639         &mtk_disp_ovl_driver,
 640         &mtk_disp_rdma_driver,
 641         &mtk_dpi_driver,
 642         &mtk_drm_platform_driver,
 643         &mtk_dsi_driver,
 644         &mtk_mipi_tx_driver,
 645 };
 646
 647 static int __init mtk_drm_init(void)
 648 {
 649         return platform_register_drivers(mtk_drm_drivers,
 650                                          ARRAY_SIZE(mtk_drm_drivers));
 651 }
 652
 653 static void __exit mtk_drm_exit(void)
 654 {
 655         platform_unregister_drivers(mtk_drm_drivers,
 656                                     ARRAY_SIZE(mtk_drm_drivers));
 657 }
 658
 659 module_init(mtk_drm_init);
 660 module_exit(mtk_drm_exit);
 661
 662 MODULE_AUTHOR("YT SHEN <yt.shen@mediatek.com>");
 663 MODULE_DESCRIPTION("Mediatek SoC DRM driver");
 664 MODULE_LICENSE("GPL v2");