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