1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2015 MediaTek Inc. 4 * Author: YT SHEN <yt.shen@mediatek.com> 5 */ 6 7 #include <linux/component.h> 8 #include <linux/iommu.h> 9 #include <linux/module.h> 10 #include <linux/of_address.h> 11 #include <linux/of_platform.h> 12 #include <linux/pm_runtime.h> 13 #include <linux/dma-mapping.h> 14 15 #include <drm/drm_atomic.h> 16 #include <drm/drm_atomic_helper.h> 17 #include <drm/drm_drv.h> 18 #include <drm/drm_fb_helper.h> 19 #include <drm/drm_fourcc.h> 20 #include <drm/drm_gem.h> 21 #include <drm/drm_gem_cma_helper.h> 22 #include <drm/drm_gem_framebuffer_helper.h> 23 #include <drm/drm_of.h> 24 #include <drm/drm_probe_helper.h> 25 #include <drm/drm_vblank.h> 26 27 #include "mtk_drm_crtc.h" 28 #include "mtk_drm_ddp_comp.h" 29 #include "mtk_drm_drv.h" 30 #include "mtk_drm_gem.h" 31 32 #define DRIVER_NAME "mediatek" 33 #define DRIVER_DESC "Mediatek SoC DRM" 34 #define DRIVER_DATE "20150513" 35 #define DRIVER_MAJOR 1 36 #define DRIVER_MINOR 0 37 38 static const struct drm_mode_config_helper_funcs mtk_drm_mode_config_helpers = { 39 .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm, 40 }; 41 42 static struct drm_framebuffer * 43 mtk_drm_mode_fb_create(struct drm_device *dev, 44 struct drm_file *file, 45 const struct drm_mode_fb_cmd2 *cmd) 46 { 47 const struct drm_format_info *info = drm_get_format_info(dev, cmd); 48 49 if (info->num_planes != 1) 50 return ERR_PTR(-EINVAL); 51 52 return drm_gem_fb_create(dev, file, cmd); 53 } 54 55 static const struct drm_mode_config_funcs mtk_drm_mode_config_funcs = { 56 .fb_create = mtk_drm_mode_fb_create, 57 .atomic_check = drm_atomic_helper_check, 58 .atomic_commit = drm_atomic_helper_commit, 59 }; 60 61 static const enum mtk_ddp_comp_id mt2701_mtk_ddp_main[] = { 62 DDP_COMPONENT_OVL0, 63 DDP_COMPONENT_RDMA0, 64 DDP_COMPONENT_COLOR0, 65 DDP_COMPONENT_BLS, 66 DDP_COMPONENT_DSI0, 67 }; 68 69 static const enum mtk_ddp_comp_id mt2701_mtk_ddp_ext[] = { 70 DDP_COMPONENT_RDMA1, 71 DDP_COMPONENT_DPI0, 72 }; 73 74 static const enum mtk_ddp_comp_id mt7623_mtk_ddp_main[] = { 75 DDP_COMPONENT_OVL0, 76 DDP_COMPONENT_RDMA0, 77 DDP_COMPONENT_COLOR0, 78 DDP_COMPONENT_BLS, 79 DDP_COMPONENT_DPI0, 80 }; 81 82 static const enum mtk_ddp_comp_id mt7623_mtk_ddp_ext[] = { 83 DDP_COMPONENT_RDMA1, 84 DDP_COMPONENT_DSI0, 85 }; 86 87 static const enum mtk_ddp_comp_id mt2712_mtk_ddp_main[] = { 88 DDP_COMPONENT_OVL0, 89 DDP_COMPONENT_COLOR0, 90 DDP_COMPONENT_AAL0, 91 DDP_COMPONENT_OD0, 92 DDP_COMPONENT_RDMA0, 93 DDP_COMPONENT_DPI0, 94 DDP_COMPONENT_PWM0, 95 }; 96 97 static const enum mtk_ddp_comp_id mt2712_mtk_ddp_ext[] = { 98 DDP_COMPONENT_OVL1, 99 DDP_COMPONENT_COLOR1, 100 DDP_COMPONENT_AAL1, 101 DDP_COMPONENT_OD1, 102 DDP_COMPONENT_RDMA1, 103 DDP_COMPONENT_DPI1, 104 DDP_COMPONENT_PWM1, 105 }; 106 107 static const enum mtk_ddp_comp_id mt2712_mtk_ddp_third[] = { 108 DDP_COMPONENT_RDMA2, 109 DDP_COMPONENT_DSI3, 110 DDP_COMPONENT_PWM2, 111 }; 112 113 static const enum mtk_ddp_comp_id mt8173_mtk_ddp_main[] = { 114 DDP_COMPONENT_OVL0, 115 DDP_COMPONENT_COLOR0, 116 DDP_COMPONENT_AAL0, 117 DDP_COMPONENT_OD0, 118 DDP_COMPONENT_RDMA0, 119 DDP_COMPONENT_UFOE, 120 DDP_COMPONENT_DSI0, 121 DDP_COMPONENT_PWM0, 122 }; 123 124 static const enum mtk_ddp_comp_id mt8173_mtk_ddp_ext[] = { 125 DDP_COMPONENT_OVL1, 126 DDP_COMPONENT_COLOR1, 127 DDP_COMPONENT_GAMMA, 128 DDP_COMPONENT_RDMA1, 129 DDP_COMPONENT_DPI0, 130 }; 131 132 static const enum mtk_ddp_comp_id mt8183_mtk_ddp_main[] = { 133 DDP_COMPONENT_OVL0, 134 DDP_COMPONENT_OVL_2L0, 135 DDP_COMPONENT_RDMA0, 136 DDP_COMPONENT_COLOR0, 137 DDP_COMPONENT_CCORR, 138 DDP_COMPONENT_AAL0, 139 DDP_COMPONENT_GAMMA, 140 DDP_COMPONENT_DITHER, 141 DDP_COMPONENT_DSI0, 142 }; 143 144 static const enum mtk_ddp_comp_id mt8183_mtk_ddp_ext[] = { 145 DDP_COMPONENT_OVL_2L1, 146 DDP_COMPONENT_RDMA1, 147 DDP_COMPONENT_DPI0, 148 }; 149 150 static const struct mtk_mmsys_driver_data mt2701_mmsys_driver_data = { 151 .main_path = mt2701_mtk_ddp_main, 152 .main_len = ARRAY_SIZE(mt2701_mtk_ddp_main), 153 .ext_path = mt2701_mtk_ddp_ext, 154 .ext_len = ARRAY_SIZE(mt2701_mtk_ddp_ext), 155 .shadow_register = true, 156 }; 157 158 static const struct mtk_mmsys_driver_data mt7623_mmsys_driver_data = { 159 .main_path = mt7623_mtk_ddp_main, 160 .main_len = ARRAY_SIZE(mt7623_mtk_ddp_main), 161 .ext_path = mt7623_mtk_ddp_ext, 162 .ext_len = ARRAY_SIZE(mt7623_mtk_ddp_ext), 163 .shadow_register = true, 164 }; 165 166 static const struct mtk_mmsys_driver_data mt2712_mmsys_driver_data = { 167 .main_path = mt2712_mtk_ddp_main, 168 .main_len = ARRAY_SIZE(mt2712_mtk_ddp_main), 169 .ext_path = mt2712_mtk_ddp_ext, 170 .ext_len = ARRAY_SIZE(mt2712_mtk_ddp_ext), 171 .third_path = mt2712_mtk_ddp_third, 172 .third_len = ARRAY_SIZE(mt2712_mtk_ddp_third), 173 }; 174 175 static const struct mtk_mmsys_driver_data mt8173_mmsys_driver_data = { 176 .main_path = mt8173_mtk_ddp_main, 177 .main_len = ARRAY_SIZE(mt8173_mtk_ddp_main), 178 .ext_path = mt8173_mtk_ddp_ext, 179 .ext_len = ARRAY_SIZE(mt8173_mtk_ddp_ext), 180 }; 181 182 static const struct mtk_mmsys_driver_data mt8183_mmsys_driver_data = { 183 .main_path = mt8183_mtk_ddp_main, 184 .main_len = ARRAY_SIZE(mt8183_mtk_ddp_main), 185 .ext_path = mt8183_mtk_ddp_ext, 186 .ext_len = ARRAY_SIZE(mt8183_mtk_ddp_ext), 187 }; 188 189 static int mtk_drm_kms_init(struct drm_device *drm) 190 { 191 struct mtk_drm_private *private = drm->dev_private; 192 struct platform_device *pdev; 193 struct device_node *np; 194 struct device *dma_dev; 195 int ret; 196 197 if (!iommu_present(&platform_bus_type)) 198 return -EPROBE_DEFER; 199 200 pdev = of_find_device_by_node(private->mutex_node); 201 if (!pdev) { 202 dev_err(drm->dev, "Waiting for disp-mutex device %pOF\n", 203 private->mutex_node); 204 of_node_put(private->mutex_node); 205 return -EPROBE_DEFER; 206 } 207 private->mutex_dev = &pdev->dev; 208 209 ret = drmm_mode_config_init(drm); 210 if (ret) 211 goto put_mutex_dev; 212 213 drm->mode_config.min_width = 64; 214 drm->mode_config.min_height = 64; 215 216 /* 217 * set max width and height as default value(4096x4096). 218 * this value would be used to check framebuffer size limitation 219 * at drm_mode_addfb(). 220 */ 221 drm->mode_config.max_width = 4096; 222 drm->mode_config.max_height = 4096; 223 drm->mode_config.funcs = &mtk_drm_mode_config_funcs; 224 drm->mode_config.helper_private = &mtk_drm_mode_config_helpers; 225 226 ret = component_bind_all(drm->dev, drm); 227 if (ret) 228 goto put_mutex_dev; 229 230 /* 231 * We currently support two fixed data streams, each optional, 232 * and each statically assigned to a crtc: 233 * OVL0 -> COLOR0 -> AAL -> OD -> RDMA0 -> UFOE -> DSI0 ... 234 */ 235 ret = mtk_drm_crtc_create(drm, private->data->main_path, 236 private->data->main_len); 237 if (ret < 0) 238 goto err_component_unbind; 239 /* ... and OVL1 -> COLOR1 -> GAMMA -> RDMA1 -> DPI0. */ 240 ret = mtk_drm_crtc_create(drm, private->data->ext_path, 241 private->data->ext_len); 242 if (ret < 0) 243 goto err_component_unbind; 244 245 ret = mtk_drm_crtc_create(drm, private->data->third_path, 246 private->data->third_len); 247 if (ret < 0) 248 goto err_component_unbind; 249 250 /* Use OVL device for all DMA memory allocations */ 251 np = private->comp_node[private->data->main_path[0]] ?: 252 private->comp_node[private->data->ext_path[0]]; 253 pdev = of_find_device_by_node(np); 254 if (!pdev) { 255 ret = -ENODEV; 256 dev_err(drm->dev, "Need at least one OVL device\n"); 257 goto err_component_unbind; 258 } 259 260 dma_dev = &pdev->dev; 261 private->dma_dev = dma_dev; 262 263 /* 264 * Configure the DMA segment size to make sure we get contiguous IOVA 265 * when importing PRIME buffers. 266 */ 267 ret = dma_set_max_seg_size(dma_dev, UINT_MAX); 268 if (ret) { 269 dev_err(dma_dev, "Failed to set DMA segment size\n"); 270 goto err_component_unbind; 271 } 272 273 /* 274 * We don't use the drm_irq_install() helpers provided by the DRM 275 * core, so we need to set this manually in order to allow the 276 * DRM_IOCTL_WAIT_VBLANK to operate correctly. 277 */ 278 drm->irq_enabled = true; 279 ret = drm_vblank_init(drm, MAX_CRTC); 280 if (ret < 0) 281 goto err_component_unbind; 282 283 drm_kms_helper_poll_init(drm); 284 drm_mode_config_reset(drm); 285 286 return 0; 287 288 err_component_unbind: 289 component_unbind_all(drm->dev, drm); 290 put_mutex_dev: 291 put_device(private->mutex_dev); 292 return ret; 293 } 294 295 static void mtk_drm_kms_deinit(struct drm_device *drm) 296 { 297 drm_kms_helper_poll_fini(drm); 298 drm_atomic_helper_shutdown(drm); 299 300 component_unbind_all(drm->dev, drm); 301 } 302 303 static const struct file_operations mtk_drm_fops = { 304 .owner = THIS_MODULE, 305 .open = drm_open, 306 .release = drm_release, 307 .unlocked_ioctl = drm_ioctl, 308 .mmap = mtk_drm_gem_mmap, 309 .poll = drm_poll, 310 .read = drm_read, 311 .compat_ioctl = drm_compat_ioctl, 312 }; 313 314 /* 315 * We need to override this because the device used to import the memory is 316 * not dev->dev, as drm_gem_prime_import() expects. 317 */ 318 static struct drm_gem_object *mtk_drm_gem_prime_import(struct drm_device *dev, 319 struct dma_buf *dma_buf) 320 { 321 struct mtk_drm_private *private = dev->dev_private; 322 323 return drm_gem_prime_import_dev(dev, dma_buf, private->dma_dev); 324 } 325 326 static const struct drm_driver mtk_drm_driver = { 327 .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC, 328 329 .dumb_create = mtk_drm_gem_dumb_create, 330 331 .prime_handle_to_fd = drm_gem_prime_handle_to_fd, 332 .prime_fd_to_handle = drm_gem_prime_fd_to_handle, 333 .gem_prime_import = mtk_drm_gem_prime_import, 334 .gem_prime_import_sg_table = mtk_gem_prime_import_sg_table, 335 .gem_prime_mmap = mtk_drm_gem_mmap_buf, 336 .fops = &mtk_drm_fops, 337 338 .name = DRIVER_NAME, 339 .desc = DRIVER_DESC, 340 .date = DRIVER_DATE, 341 .major = DRIVER_MAJOR, 342 .minor = DRIVER_MINOR, 343 }; 344 345 static int compare_of(struct device *dev, void *data) 346 { 347 return dev->of_node == data; 348 } 349 350 static int mtk_drm_bind(struct device *dev) 351 { 352 struct mtk_drm_private *private = dev_get_drvdata(dev); 353 struct drm_device *drm; 354 int ret; 355 356 drm = drm_dev_alloc(&mtk_drm_driver, dev); 357 if (IS_ERR(drm)) 358 return PTR_ERR(drm); 359 360 drm->dev_private = private; 361 private->drm = drm; 362 363 ret = mtk_drm_kms_init(drm); 364 if (ret < 0) 365 goto err_free; 366 367 ret = drm_dev_register(drm, 0); 368 if (ret < 0) 369 goto err_deinit; 370 371 drm_fbdev_generic_setup(drm, 32); 372 373 return 0; 374 375 err_deinit: 376 mtk_drm_kms_deinit(drm); 377 err_free: 378 drm_dev_put(drm); 379 return ret; 380 } 381 382 static void mtk_drm_unbind(struct device *dev) 383 { 384 struct mtk_drm_private *private = dev_get_drvdata(dev); 385 386 drm_dev_unregister(private->drm); 387 mtk_drm_kms_deinit(private->drm); 388 drm_dev_put(private->drm); 389 private->num_pipes = 0; 390 private->drm = NULL; 391 } 392 393 static const struct component_master_ops mtk_drm_ops = { 394 .bind = mtk_drm_bind, 395 .unbind = mtk_drm_unbind, 396 }; 397 398 static const struct of_device_id mtk_ddp_comp_dt_ids[] = { 399 { .compatible = "mediatek,mt2701-disp-ovl", 400 .data = (void *)MTK_DISP_OVL }, 401 { .compatible = "mediatek,mt8173-disp-ovl", 402 .data = (void *)MTK_DISP_OVL }, 403 { .compatible = "mediatek,mt8183-disp-ovl", 404 .data = (void *)MTK_DISP_OVL }, 405 { .compatible = "mediatek,mt8183-disp-ovl-2l", 406 .data = (void *)MTK_DISP_OVL_2L }, 407 { .compatible = "mediatek,mt2701-disp-rdma", 408 .data = (void *)MTK_DISP_RDMA }, 409 { .compatible = "mediatek,mt8173-disp-rdma", 410 .data = (void *)MTK_DISP_RDMA }, 411 { .compatible = "mediatek,mt8183-disp-rdma", 412 .data = (void *)MTK_DISP_RDMA }, 413 { .compatible = "mediatek,mt8173-disp-wdma", 414 .data = (void *)MTK_DISP_WDMA }, 415 { .compatible = "mediatek,mt8183-disp-ccorr", 416 .data = (void *)MTK_DISP_CCORR }, 417 { .compatible = "mediatek,mt2701-disp-color", 418 .data = (void *)MTK_DISP_COLOR }, 419 { .compatible = "mediatek,mt8173-disp-color", 420 .data = (void *)MTK_DISP_COLOR }, 421 { .compatible = "mediatek,mt8173-disp-aal", 422 .data = (void *)MTK_DISP_AAL}, 423 { .compatible = "mediatek,mt8173-disp-gamma", 424 .data = (void *)MTK_DISP_GAMMA, }, 425 { .compatible = "mediatek,mt8183-disp-gamma", 426 .data = (void *)MTK_DISP_GAMMA, }, 427 { .compatible = "mediatek,mt8183-disp-dither", 428 .data = (void *)MTK_DISP_DITHER }, 429 { .compatible = "mediatek,mt8173-disp-ufoe", 430 .data = (void *)MTK_DISP_UFOE }, 431 { .compatible = "mediatek,mt2701-dsi", 432 .data = (void *)MTK_DSI }, 433 { .compatible = "mediatek,mt8173-dsi", 434 .data = (void *)MTK_DSI }, 435 { .compatible = "mediatek,mt8183-dsi", 436 .data = (void *)MTK_DSI }, 437 { .compatible = "mediatek,mt2701-dpi", 438 .data = (void *)MTK_DPI }, 439 { .compatible = "mediatek,mt8173-dpi", 440 .data = (void *)MTK_DPI }, 441 { .compatible = "mediatek,mt8183-dpi", 442 .data = (void *)MTK_DPI }, 443 { .compatible = "mediatek,mt2701-disp-mutex", 444 .data = (void *)MTK_DISP_MUTEX }, 445 { .compatible = "mediatek,mt2712-disp-mutex", 446 .data = (void *)MTK_DISP_MUTEX }, 447 { .compatible = "mediatek,mt8173-disp-mutex", 448 .data = (void *)MTK_DISP_MUTEX }, 449 { .compatible = "mediatek,mt8183-disp-mutex", 450 .data = (void *)MTK_DISP_MUTEX }, 451 { .compatible = "mediatek,mt2701-disp-pwm", 452 .data = (void *)MTK_DISP_BLS }, 453 { .compatible = "mediatek,mt8173-disp-pwm", 454 .data = (void *)MTK_DISP_PWM }, 455 { .compatible = "mediatek,mt8173-disp-od", 456 .data = (void *)MTK_DISP_OD }, 457 { } 458 }; 459 460 static const struct of_device_id mtk_drm_of_ids[] = { 461 { .compatible = "mediatek,mt2701-mmsys", 462 .data = &mt2701_mmsys_driver_data}, 463 { .compatible = "mediatek,mt7623-mmsys", 464 .data = &mt7623_mmsys_driver_data}, 465 { .compatible = "mediatek,mt2712-mmsys", 466 .data = &mt2712_mmsys_driver_data}, 467 { .compatible = "mediatek,mt8173-mmsys", 468 .data = &mt8173_mmsys_driver_data}, 469 { .compatible = "mediatek,mt8183-mmsys", 470 .data = &mt8183_mmsys_driver_data}, 471 { } 472 }; 473 474 static int mtk_drm_probe(struct platform_device *pdev) 475 { 476 struct device *dev = &pdev->dev; 477 struct device_node *phandle = dev->parent->of_node; 478 const struct of_device_id *of_id; 479 struct mtk_drm_private *private; 480 struct device_node *node; 481 struct component_match *match = NULL; 482 int ret; 483 int i; 484 485 private = devm_kzalloc(dev, sizeof(*private), GFP_KERNEL); 486 if (!private) 487 return -ENOMEM; 488 489 private->mmsys_dev = dev->parent; 490 if (!private->mmsys_dev) { 491 dev_err(dev, "Failed to get MMSYS device\n"); 492 return -ENODEV; 493 } 494 495 of_id = of_match_node(mtk_drm_of_ids, phandle); 496 if (!of_id) 497 return -ENODEV; 498 499 private->data = of_id->data; 500 501 /* Iterate over sibling DISP function blocks */ 502 for_each_child_of_node(phandle->parent, node) { 503 const struct of_device_id *of_id; 504 enum mtk_ddp_comp_type comp_type; 505 int comp_id; 506 507 of_id = of_match_node(mtk_ddp_comp_dt_ids, node); 508 if (!of_id) 509 continue; 510 511 if (!of_device_is_available(node)) { 512 dev_dbg(dev, "Skipping disabled component %pOF\n", 513 node); 514 continue; 515 } 516 517 comp_type = (enum mtk_ddp_comp_type)of_id->data; 518 519 if (comp_type == MTK_DISP_MUTEX) { 520 private->mutex_node = of_node_get(node); 521 continue; 522 } 523 524 comp_id = mtk_ddp_comp_get_id(node, comp_type); 525 if (comp_id < 0) { 526 dev_warn(dev, "Skipping unknown component %pOF\n", 527 node); 528 continue; 529 } 530 531 private->comp_node[comp_id] = of_node_get(node); 532 533 /* 534 * Currently only the CCORR, COLOR, GAMMA, OVL, RDMA, DSI, and DPI 535 * blocks have separate component platform drivers and initialize their own 536 * DDP component structure. The others are initialized here. 537 */ 538 if (comp_type == MTK_DISP_CCORR || 539 comp_type == MTK_DISP_COLOR || 540 comp_type == MTK_DISP_GAMMA || 541 comp_type == MTK_DISP_OVL || 542 comp_type == MTK_DISP_OVL_2L || 543 comp_type == MTK_DISP_RDMA || 544 comp_type == MTK_DSI || 545 comp_type == MTK_DPI) { 546 dev_info(dev, "Adding component match for %pOF\n", 547 node); 548 drm_of_component_match_add(dev, &match, compare_of, 549 node); 550 } 551 552 ret = mtk_ddp_comp_init(node, &private->ddp_comp[comp_id], comp_id); 553 if (ret) { 554 of_node_put(node); 555 goto err_node; 556 } 557 } 558 559 if (!private->mutex_node) { 560 dev_err(dev, "Failed to find disp-mutex node\n"); 561 ret = -ENODEV; 562 goto err_node; 563 } 564 565 pm_runtime_enable(dev); 566 567 platform_set_drvdata(pdev, private); 568 569 ret = component_master_add_with_match(dev, &mtk_drm_ops, match); 570 if (ret) 571 goto err_pm; 572 573 return 0; 574 575 err_pm: 576 pm_runtime_disable(dev); 577 err_node: 578 of_node_put(private->mutex_node); 579 for (i = 0; i < DDP_COMPONENT_ID_MAX; i++) { 580 of_node_put(private->comp_node[i]); 581 if (private->ddp_comp[i].larb_dev) 582 put_device(private->ddp_comp[i].larb_dev); 583 } 584 return ret; 585 } 586 587 static int mtk_drm_remove(struct platform_device *pdev) 588 { 589 struct mtk_drm_private *private = platform_get_drvdata(pdev); 590 int i; 591 592 component_master_del(&pdev->dev, &mtk_drm_ops); 593 pm_runtime_disable(&pdev->dev); 594 of_node_put(private->mutex_node); 595 for (i = 0; i < DDP_COMPONENT_ID_MAX; i++) 596 of_node_put(private->comp_node[i]); 597 598 return 0; 599 } 600 601 #ifdef CONFIG_PM_SLEEP 602 static int mtk_drm_sys_suspend(struct device *dev) 603 { 604 struct mtk_drm_private *private = dev_get_drvdata(dev); 605 struct drm_device *drm = private->drm; 606 int ret; 607 608 ret = drm_mode_config_helper_suspend(drm); 609 610 return ret; 611 } 612 613 static int mtk_drm_sys_resume(struct device *dev) 614 { 615 struct mtk_drm_private *private = dev_get_drvdata(dev); 616 struct drm_device *drm = private->drm; 617 int ret; 618 619 ret = drm_mode_config_helper_resume(drm); 620 621 return ret; 622 } 623 #endif 624 625 static SIMPLE_DEV_PM_OPS(mtk_drm_pm_ops, mtk_drm_sys_suspend, 626 mtk_drm_sys_resume); 627 628 static struct platform_driver mtk_drm_platform_driver = { 629 .probe = mtk_drm_probe, 630 .remove = mtk_drm_remove, 631 .driver = { 632 .name = "mediatek-drm", 633 .pm = &mtk_drm_pm_ops, 634 }, 635 }; 636 637 static struct platform_driver * const mtk_drm_drivers[] = { 638 &mtk_disp_ccorr_driver, 639 &mtk_disp_color_driver, 640 &mtk_disp_gamma_driver, 641 &mtk_disp_ovl_driver, 642 &mtk_disp_rdma_driver, 643 &mtk_dpi_driver, 644 &mtk_drm_platform_driver, 645 &mtk_dsi_driver, 646 }; 647 648 static int __init mtk_drm_init(void) 649 { 650 return platform_register_drivers(mtk_drm_drivers, 651 ARRAY_SIZE(mtk_drm_drivers)); 652 } 653 654 static void __exit mtk_drm_exit(void) 655 { 656 platform_unregister_drivers(mtk_drm_drivers, 657 ARRAY_SIZE(mtk_drm_drivers)); 658 } 659 660 module_init(mtk_drm_init); 661 module_exit(mtk_drm_exit); 662 663 MODULE_AUTHOR("YT SHEN <yt.shen@mediatek.com>"); 664 MODULE_DESCRIPTION("Mediatek SoC DRM driver"); 665 MODULE_LICENSE("GPL v2"); 666