| 1 | /* |
| 2 | * Freescale i.MX drm driver |
| 3 | * |
| 4 | * Copyright (C) 2011 Sascha Hauer, Pengutronix |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version 2 |
| 9 | * of the License, or (at your option) any later version. |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | */ |
| 16 | #include <linux/component.h> |
| 17 | #include <linux/device.h> |
| 18 | #include <linux/fb.h> |
| 19 | #include <linux/module.h> |
| 20 | #include <linux/platform_device.h> |
| 21 | #include <drm/drmP.h> |
| 22 | #include <drm/drm_fb_helper.h> |
| 23 | #include <drm/drm_crtc_helper.h> |
| 24 | #include <drm/drm_gem_cma_helper.h> |
| 25 | #include <drm/drm_fb_cma_helper.h> |
| 26 | #include <drm/drm_plane_helper.h> |
| 27 | #include <drm/drm_of.h> |
| 28 | |
| 29 | #include "imx-drm.h" |
| 30 | |
| 31 | #define MAX_CRTC 4 |
| 32 | |
| 33 | struct imx_drm_component { |
| 34 | struct device_node *of_node; |
| 35 | struct list_head list; |
| 36 | }; |
| 37 | |
| 38 | struct imx_drm_device { |
| 39 | struct drm_device *drm; |
| 40 | struct imx_drm_crtc *crtc[MAX_CRTC]; |
| 41 | unsigned int pipes; |
| 42 | struct drm_fbdev_cma *fbhelper; |
| 43 | }; |
| 44 | |
| 45 | struct imx_drm_crtc { |
| 46 | struct drm_crtc *crtc; |
| 47 | struct imx_drm_crtc_helper_funcs imx_drm_helper_funcs; |
| 48 | }; |
| 49 | |
| 50 | #if IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) |
| 51 | static int legacyfb_depth = 16; |
| 52 | module_param(legacyfb_depth, int, 0444); |
| 53 | #endif |
| 54 | |
| 55 | unsigned int imx_drm_crtc_id(struct imx_drm_crtc *crtc) |
| 56 | { |
| 57 | return drm_crtc_index(crtc->crtc); |
| 58 | } |
| 59 | EXPORT_SYMBOL_GPL(imx_drm_crtc_id); |
| 60 | |
| 61 | static void imx_drm_driver_lastclose(struct drm_device *drm) |
| 62 | { |
| 63 | struct imx_drm_device *imxdrm = drm->dev_private; |
| 64 | |
| 65 | drm_fbdev_cma_restore_mode(imxdrm->fbhelper); |
| 66 | } |
| 67 | |
| 68 | static int imx_drm_driver_unload(struct drm_device *drm) |
| 69 | { |
| 70 | struct imx_drm_device *imxdrm = drm->dev_private; |
| 71 | |
| 72 | drm_kms_helper_poll_fini(drm); |
| 73 | |
| 74 | if (imxdrm->fbhelper) |
| 75 | drm_fbdev_cma_fini(imxdrm->fbhelper); |
| 76 | |
| 77 | component_unbind_all(drm->dev, drm); |
| 78 | |
| 79 | drm_vblank_cleanup(drm); |
| 80 | drm_mode_config_cleanup(drm); |
| 81 | |
| 82 | platform_set_drvdata(drm->platformdev, NULL); |
| 83 | |
| 84 | return 0; |
| 85 | } |
| 86 | |
| 87 | static struct imx_drm_crtc *imx_drm_find_crtc(struct drm_crtc *crtc) |
| 88 | { |
| 89 | struct imx_drm_device *imxdrm = crtc->dev->dev_private; |
| 90 | unsigned i; |
| 91 | |
| 92 | for (i = 0; i < MAX_CRTC; i++) |
| 93 | if (imxdrm->crtc[i] && imxdrm->crtc[i]->crtc == crtc) |
| 94 | return imxdrm->crtc[i]; |
| 95 | |
| 96 | return NULL; |
| 97 | } |
| 98 | |
| 99 | int imx_drm_set_bus_format_pins(struct drm_encoder *encoder, u32 bus_format, |
| 100 | int hsync_pin, int vsync_pin) |
| 101 | { |
| 102 | struct imx_drm_crtc_helper_funcs *helper; |
| 103 | struct imx_drm_crtc *imx_crtc; |
| 104 | |
| 105 | imx_crtc = imx_drm_find_crtc(encoder->crtc); |
| 106 | if (!imx_crtc) |
| 107 | return -EINVAL; |
| 108 | |
| 109 | helper = &imx_crtc->imx_drm_helper_funcs; |
| 110 | if (helper->set_interface_pix_fmt) |
| 111 | return helper->set_interface_pix_fmt(encoder->crtc, |
| 112 | bus_format, hsync_pin, vsync_pin); |
| 113 | return 0; |
| 114 | } |
| 115 | EXPORT_SYMBOL_GPL(imx_drm_set_bus_format_pins); |
| 116 | |
| 117 | int imx_drm_set_bus_format(struct drm_encoder *encoder, u32 bus_format) |
| 118 | { |
| 119 | return imx_drm_set_bus_format_pins(encoder, bus_format, 2, 3); |
| 120 | } |
| 121 | EXPORT_SYMBOL_GPL(imx_drm_set_bus_format); |
| 122 | |
| 123 | int imx_drm_crtc_vblank_get(struct imx_drm_crtc *imx_drm_crtc) |
| 124 | { |
| 125 | return drm_crtc_vblank_get(imx_drm_crtc->crtc); |
| 126 | } |
| 127 | EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_get); |
| 128 | |
| 129 | void imx_drm_crtc_vblank_put(struct imx_drm_crtc *imx_drm_crtc) |
| 130 | { |
| 131 | drm_crtc_vblank_put(imx_drm_crtc->crtc); |
| 132 | } |
| 133 | EXPORT_SYMBOL_GPL(imx_drm_crtc_vblank_put); |
| 134 | |
| 135 | void imx_drm_handle_vblank(struct imx_drm_crtc *imx_drm_crtc) |
| 136 | { |
| 137 | drm_crtc_handle_vblank(imx_drm_crtc->crtc); |
| 138 | } |
| 139 | EXPORT_SYMBOL_GPL(imx_drm_handle_vblank); |
| 140 | |
| 141 | static int imx_drm_enable_vblank(struct drm_device *drm, unsigned int pipe) |
| 142 | { |
| 143 | struct imx_drm_device *imxdrm = drm->dev_private; |
| 144 | struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[pipe]; |
| 145 | int ret; |
| 146 | |
| 147 | if (!imx_drm_crtc) |
| 148 | return -EINVAL; |
| 149 | |
| 150 | if (!imx_drm_crtc->imx_drm_helper_funcs.enable_vblank) |
| 151 | return -ENOSYS; |
| 152 | |
| 153 | ret = imx_drm_crtc->imx_drm_helper_funcs.enable_vblank( |
| 154 | imx_drm_crtc->crtc); |
| 155 | |
| 156 | return ret; |
| 157 | } |
| 158 | |
| 159 | static void imx_drm_disable_vblank(struct drm_device *drm, unsigned int pipe) |
| 160 | { |
| 161 | struct imx_drm_device *imxdrm = drm->dev_private; |
| 162 | struct imx_drm_crtc *imx_drm_crtc = imxdrm->crtc[pipe]; |
| 163 | |
| 164 | if (!imx_drm_crtc) |
| 165 | return; |
| 166 | |
| 167 | if (!imx_drm_crtc->imx_drm_helper_funcs.disable_vblank) |
| 168 | return; |
| 169 | |
| 170 | imx_drm_crtc->imx_drm_helper_funcs.disable_vblank(imx_drm_crtc->crtc); |
| 171 | } |
| 172 | |
| 173 | static const struct file_operations imx_drm_driver_fops = { |
| 174 | .owner = THIS_MODULE, |
| 175 | .open = drm_open, |
| 176 | .release = drm_release, |
| 177 | .unlocked_ioctl = drm_ioctl, |
| 178 | .mmap = drm_gem_cma_mmap, |
| 179 | .poll = drm_poll, |
| 180 | .read = drm_read, |
| 181 | .llseek = noop_llseek, |
| 182 | }; |
| 183 | |
| 184 | void imx_drm_connector_destroy(struct drm_connector *connector) |
| 185 | { |
| 186 | drm_connector_unregister(connector); |
| 187 | drm_connector_cleanup(connector); |
| 188 | } |
| 189 | EXPORT_SYMBOL_GPL(imx_drm_connector_destroy); |
| 190 | |
| 191 | void imx_drm_encoder_destroy(struct drm_encoder *encoder) |
| 192 | { |
| 193 | drm_encoder_cleanup(encoder); |
| 194 | } |
| 195 | EXPORT_SYMBOL_GPL(imx_drm_encoder_destroy); |
| 196 | |
| 197 | static void imx_drm_output_poll_changed(struct drm_device *drm) |
| 198 | { |
| 199 | struct imx_drm_device *imxdrm = drm->dev_private; |
| 200 | |
| 201 | drm_fbdev_cma_hotplug_event(imxdrm->fbhelper); |
| 202 | } |
| 203 | |
| 204 | static const struct drm_mode_config_funcs imx_drm_mode_config_funcs = { |
| 205 | .fb_create = drm_fb_cma_create, |
| 206 | .output_poll_changed = imx_drm_output_poll_changed, |
| 207 | }; |
| 208 | |
| 209 | /* |
| 210 | * Main DRM initialisation. This binds, initialises and registers |
| 211 | * with DRM the subcomponents of the driver. |
| 212 | */ |
| 213 | static int imx_drm_driver_load(struct drm_device *drm, unsigned long flags) |
| 214 | { |
| 215 | struct imx_drm_device *imxdrm; |
| 216 | struct drm_connector *connector; |
| 217 | int ret; |
| 218 | |
| 219 | imxdrm = devm_kzalloc(drm->dev, sizeof(*imxdrm), GFP_KERNEL); |
| 220 | if (!imxdrm) |
| 221 | return -ENOMEM; |
| 222 | |
| 223 | imxdrm->drm = drm; |
| 224 | |
| 225 | drm->dev_private = imxdrm; |
| 226 | |
| 227 | /* |
| 228 | * enable drm irq mode. |
| 229 | * - with irq_enabled = true, we can use the vblank feature. |
| 230 | * |
| 231 | * P.S. note that we wouldn't use drm irq handler but |
| 232 | * just specific driver own one instead because |
| 233 | * drm framework supports only one irq handler and |
| 234 | * drivers can well take care of their interrupts |
| 235 | */ |
| 236 | drm->irq_enabled = true; |
| 237 | |
| 238 | /* |
| 239 | * set max width and height as default value(4096x4096). |
| 240 | * this value would be used to check framebuffer size limitation |
| 241 | * at drm_mode_addfb(). |
| 242 | */ |
| 243 | drm->mode_config.min_width = 64; |
| 244 | drm->mode_config.min_height = 64; |
| 245 | drm->mode_config.max_width = 4096; |
| 246 | drm->mode_config.max_height = 4096; |
| 247 | drm->mode_config.funcs = &imx_drm_mode_config_funcs; |
| 248 | |
| 249 | drm_mode_config_init(drm); |
| 250 | |
| 251 | ret = drm_vblank_init(drm, MAX_CRTC); |
| 252 | if (ret) |
| 253 | goto err_kms; |
| 254 | |
| 255 | /* |
| 256 | * with vblank_disable_allowed = true, vblank interrupt will be |
| 257 | * disabled by drm timer once a current process gives up ownership |
| 258 | * of vblank event. (after drm_vblank_put function is called) |
| 259 | */ |
| 260 | drm->vblank_disable_allowed = true; |
| 261 | |
| 262 | platform_set_drvdata(drm->platformdev, drm); |
| 263 | |
| 264 | /* Now try and bind all our sub-components */ |
| 265 | ret = component_bind_all(drm->dev, drm); |
| 266 | if (ret) |
| 267 | goto err_vblank; |
| 268 | |
| 269 | /* |
| 270 | * All components are now added, we can publish the connector sysfs |
| 271 | * entries to userspace. This will generate hotplug events and so |
| 272 | * userspace will expect to be able to access DRM at this point. |
| 273 | */ |
| 274 | list_for_each_entry(connector, &drm->mode_config.connector_list, head) { |
| 275 | ret = drm_connector_register(connector); |
| 276 | if (ret) { |
| 277 | dev_err(drm->dev, |
| 278 | "[CONNECTOR:%d:%s] drm_connector_register failed: %d\n", |
| 279 | connector->base.id, |
| 280 | connector->name, ret); |
| 281 | goto err_unbind; |
| 282 | } |
| 283 | } |
| 284 | |
| 285 | /* |
| 286 | * All components are now initialised, so setup the fb helper. |
| 287 | * The fb helper takes copies of key hardware information, so the |
| 288 | * crtcs/connectors/encoders must not change after this point. |
| 289 | */ |
| 290 | #if IS_ENABLED(CONFIG_DRM_FBDEV_EMULATION) |
| 291 | if (legacyfb_depth != 16 && legacyfb_depth != 32) { |
| 292 | dev_warn(drm->dev, "Invalid legacyfb_depth. Defaulting to 16bpp\n"); |
| 293 | legacyfb_depth = 16; |
| 294 | } |
| 295 | drm_helper_disable_unused_functions(drm); |
| 296 | imxdrm->fbhelper = drm_fbdev_cma_init(drm, legacyfb_depth, |
| 297 | drm->mode_config.num_crtc, MAX_CRTC); |
| 298 | if (IS_ERR(imxdrm->fbhelper)) { |
| 299 | ret = PTR_ERR(imxdrm->fbhelper); |
| 300 | imxdrm->fbhelper = NULL; |
| 301 | goto err_unbind; |
| 302 | } |
| 303 | #endif |
| 304 | |
| 305 | drm_kms_helper_poll_init(drm); |
| 306 | |
| 307 | return 0; |
| 308 | |
| 309 | err_unbind: |
| 310 | component_unbind_all(drm->dev, drm); |
| 311 | err_vblank: |
| 312 | drm_vblank_cleanup(drm); |
| 313 | err_kms: |
| 314 | drm_mode_config_cleanup(drm); |
| 315 | |
| 316 | return ret; |
| 317 | } |
| 318 | |
| 319 | /* |
| 320 | * imx_drm_add_crtc - add a new crtc |
| 321 | */ |
| 322 | int imx_drm_add_crtc(struct drm_device *drm, struct drm_crtc *crtc, |
| 323 | struct imx_drm_crtc **new_crtc, struct drm_plane *primary_plane, |
| 324 | const struct imx_drm_crtc_helper_funcs *imx_drm_helper_funcs, |
| 325 | struct device_node *port) |
| 326 | { |
| 327 | struct imx_drm_device *imxdrm = drm->dev_private; |
| 328 | struct imx_drm_crtc *imx_drm_crtc; |
| 329 | |
| 330 | /* |
| 331 | * The vblank arrays are dimensioned by MAX_CRTC - we can't |
| 332 | * pass IDs greater than this to those functions. |
| 333 | */ |
| 334 | if (imxdrm->pipes >= MAX_CRTC) |
| 335 | return -EINVAL; |
| 336 | |
| 337 | if (imxdrm->drm->open_count) |
| 338 | return -EBUSY; |
| 339 | |
| 340 | imx_drm_crtc = kzalloc(sizeof(*imx_drm_crtc), GFP_KERNEL); |
| 341 | if (!imx_drm_crtc) |
| 342 | return -ENOMEM; |
| 343 | |
| 344 | imx_drm_crtc->imx_drm_helper_funcs = *imx_drm_helper_funcs; |
| 345 | imx_drm_crtc->crtc = crtc; |
| 346 | |
| 347 | crtc->port = port; |
| 348 | |
| 349 | imxdrm->crtc[imxdrm->pipes++] = imx_drm_crtc; |
| 350 | |
| 351 | *new_crtc = imx_drm_crtc; |
| 352 | |
| 353 | drm_crtc_helper_add(crtc, |
| 354 | imx_drm_crtc->imx_drm_helper_funcs.crtc_helper_funcs); |
| 355 | |
| 356 | drm_crtc_init_with_planes(drm, crtc, primary_plane, NULL, |
| 357 | imx_drm_crtc->imx_drm_helper_funcs.crtc_funcs, NULL); |
| 358 | |
| 359 | return 0; |
| 360 | } |
| 361 | EXPORT_SYMBOL_GPL(imx_drm_add_crtc); |
| 362 | |
| 363 | /* |
| 364 | * imx_drm_remove_crtc - remove a crtc |
| 365 | */ |
| 366 | int imx_drm_remove_crtc(struct imx_drm_crtc *imx_drm_crtc) |
| 367 | { |
| 368 | struct imx_drm_device *imxdrm = imx_drm_crtc->crtc->dev->dev_private; |
| 369 | unsigned int pipe = drm_crtc_index(imx_drm_crtc->crtc); |
| 370 | |
| 371 | drm_crtc_cleanup(imx_drm_crtc->crtc); |
| 372 | |
| 373 | imxdrm->crtc[pipe] = NULL; |
| 374 | |
| 375 | kfree(imx_drm_crtc); |
| 376 | |
| 377 | return 0; |
| 378 | } |
| 379 | EXPORT_SYMBOL_GPL(imx_drm_remove_crtc); |
| 380 | |
| 381 | int imx_drm_encoder_parse_of(struct drm_device *drm, |
| 382 | struct drm_encoder *encoder, struct device_node *np) |
| 383 | { |
| 384 | uint32_t crtc_mask = drm_of_find_possible_crtcs(drm, np); |
| 385 | |
| 386 | /* |
| 387 | * If we failed to find the CRTC(s) which this encoder is |
| 388 | * supposed to be connected to, it's because the CRTC has |
| 389 | * not been registered yet. Defer probing, and hope that |
| 390 | * the required CRTC is added later. |
| 391 | */ |
| 392 | if (crtc_mask == 0) |
| 393 | return -EPROBE_DEFER; |
| 394 | |
| 395 | encoder->possible_crtcs = crtc_mask; |
| 396 | |
| 397 | /* FIXME: this is the mask of outputs which can clone this output. */ |
| 398 | encoder->possible_clones = ~0; |
| 399 | |
| 400 | return 0; |
| 401 | } |
| 402 | EXPORT_SYMBOL_GPL(imx_drm_encoder_parse_of); |
| 403 | |
| 404 | static const struct drm_ioctl_desc imx_drm_ioctls[] = { |
| 405 | /* none so far */ |
| 406 | }; |
| 407 | |
| 408 | static struct drm_driver imx_drm_driver = { |
| 409 | .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, |
| 410 | .load = imx_drm_driver_load, |
| 411 | .unload = imx_drm_driver_unload, |
| 412 | .lastclose = imx_drm_driver_lastclose, |
| 413 | .set_busid = drm_platform_set_busid, |
| 414 | .gem_free_object = drm_gem_cma_free_object, |
| 415 | .gem_vm_ops = &drm_gem_cma_vm_ops, |
| 416 | .dumb_create = drm_gem_cma_dumb_create, |
| 417 | .dumb_map_offset = drm_gem_cma_dumb_map_offset, |
| 418 | .dumb_destroy = drm_gem_dumb_destroy, |
| 419 | |
| 420 | .prime_handle_to_fd = drm_gem_prime_handle_to_fd, |
| 421 | .prime_fd_to_handle = drm_gem_prime_fd_to_handle, |
| 422 | .gem_prime_import = drm_gem_prime_import, |
| 423 | .gem_prime_export = drm_gem_prime_export, |
| 424 | .gem_prime_get_sg_table = drm_gem_cma_prime_get_sg_table, |
| 425 | .gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table, |
| 426 | .gem_prime_vmap = drm_gem_cma_prime_vmap, |
| 427 | .gem_prime_vunmap = drm_gem_cma_prime_vunmap, |
| 428 | .gem_prime_mmap = drm_gem_cma_prime_mmap, |
| 429 | .get_vblank_counter = drm_vblank_no_hw_counter, |
| 430 | .enable_vblank = imx_drm_enable_vblank, |
| 431 | .disable_vblank = imx_drm_disable_vblank, |
| 432 | .ioctls = imx_drm_ioctls, |
| 433 | .num_ioctls = ARRAY_SIZE(imx_drm_ioctls), |
| 434 | .fops = &imx_drm_driver_fops, |
| 435 | .name = "imx-drm", |
| 436 | .desc = "i.MX DRM graphics", |
| 437 | .date = "20120507", |
| 438 | .major = 1, |
| 439 | .minor = 0, |
| 440 | .patchlevel = 0, |
| 441 | }; |
| 442 | |
| 443 | static int compare_of(struct device *dev, void *data) |
| 444 | { |
| 445 | struct device_node *np = data; |
| 446 | |
| 447 | /* Special case for LDB, one device for two channels */ |
| 448 | if (of_node_cmp(np->name, "lvds-channel") == 0) { |
| 449 | np = of_get_parent(np); |
| 450 | of_node_put(np); |
| 451 | } |
| 452 | |
| 453 | return dev->of_node == np; |
| 454 | } |
| 455 | |
| 456 | static int imx_drm_bind(struct device *dev) |
| 457 | { |
| 458 | return drm_platform_init(&imx_drm_driver, to_platform_device(dev)); |
| 459 | } |
| 460 | |
| 461 | static void imx_drm_unbind(struct device *dev) |
| 462 | { |
| 463 | drm_put_dev(dev_get_drvdata(dev)); |
| 464 | } |
| 465 | |
| 466 | static const struct component_master_ops imx_drm_ops = { |
| 467 | .bind = imx_drm_bind, |
| 468 | .unbind = imx_drm_unbind, |
| 469 | }; |
| 470 | |
| 471 | static int imx_drm_platform_probe(struct platform_device *pdev) |
| 472 | { |
| 473 | int ret = drm_of_component_probe(&pdev->dev, compare_of, &imx_drm_ops); |
| 474 | |
| 475 | if (!ret) |
| 476 | ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); |
| 477 | |
| 478 | return ret; |
| 479 | } |
| 480 | |
| 481 | static int imx_drm_platform_remove(struct platform_device *pdev) |
| 482 | { |
| 483 | component_master_del(&pdev->dev, &imx_drm_ops); |
| 484 | return 0; |
| 485 | } |
| 486 | |
| 487 | #ifdef CONFIG_PM_SLEEP |
| 488 | static int imx_drm_suspend(struct device *dev) |
| 489 | { |
| 490 | struct drm_device *drm_dev = dev_get_drvdata(dev); |
| 491 | |
| 492 | /* The drm_dev is NULL before .load hook is called */ |
| 493 | if (drm_dev == NULL) |
| 494 | return 0; |
| 495 | |
| 496 | drm_kms_helper_poll_disable(drm_dev); |
| 497 | |
| 498 | return 0; |
| 499 | } |
| 500 | |
| 501 | static int imx_drm_resume(struct device *dev) |
| 502 | { |
| 503 | struct drm_device *drm_dev = dev_get_drvdata(dev); |
| 504 | |
| 505 | if (drm_dev == NULL) |
| 506 | return 0; |
| 507 | |
| 508 | drm_helper_resume_force_mode(drm_dev); |
| 509 | drm_kms_helper_poll_enable(drm_dev); |
| 510 | |
| 511 | return 0; |
| 512 | } |
| 513 | #endif |
| 514 | |
| 515 | static SIMPLE_DEV_PM_OPS(imx_drm_pm_ops, imx_drm_suspend, imx_drm_resume); |
| 516 | |
| 517 | static const struct of_device_id imx_drm_dt_ids[] = { |
| 518 | { .compatible = "fsl,imx-display-subsystem", }, |
| 519 | { /* sentinel */ }, |
| 520 | }; |
| 521 | MODULE_DEVICE_TABLE(of, imx_drm_dt_ids); |
| 522 | |
| 523 | static struct platform_driver imx_drm_pdrv = { |
| 524 | .probe = imx_drm_platform_probe, |
| 525 | .remove = imx_drm_platform_remove, |
| 526 | .driver = { |
| 527 | .name = "imx-drm", |
| 528 | .pm = &imx_drm_pm_ops, |
| 529 | .of_match_table = imx_drm_dt_ids, |
| 530 | }, |
| 531 | }; |
| 532 | module_platform_driver(imx_drm_pdrv); |
| 533 | |
| 534 | MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>"); |
| 535 | MODULE_DESCRIPTION("i.MX drm driver core"); |
| 536 | MODULE_LICENSE("GPL"); |