1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Novatek NT35950 DriverIC panels driver 4 * 5 * Copyright (c) 2021 AngeloGioacchino Del Regno 6 * <angelogioacchino.delregno@somainline.org> 7 */ 8 #include <linux/delay.h> 9 #include <linux/gpio/consumer.h> 10 #include <linux/module.h> 11 #include <linux/of.h> 12 #include <linux/of_graph.h> 13 #include <linux/regulator/consumer.h> 14 15 #include <drm/drm_connector.h> 16 #include <drm/drm_crtc.h> 17 #include <drm/drm_mipi_dsi.h> 18 #include <drm/drm_modes.h> 19 #include <drm/drm_panel.h> 20 21 #define MCS_CMD_MAUCCTR 0xf0 /* Manufacturer command enable */ 22 #define MCS_PARAM_SCALER_FUNCTION 0x58 /* Scale-up function */ 23 #define MCS_PARAM_SCALEUP_MODE 0xc9 24 #define MCS_SCALEUP_SIMPLE 0x0 25 #define MCS_SCALEUP_BILINEAR BIT(0) 26 #define MCS_SCALEUP_DUPLICATE (BIT(0) | BIT(4)) 27 28 /* VESA Display Stream Compression param */ 29 #define MCS_PARAM_VESA_DSC_ON 0x03 30 31 /* Data Compression mode */ 32 #define MCS_PARAM_DATA_COMPRESSION 0x90 33 #define MCS_DATA_COMPRESSION_NONE 0x00 34 #define MCS_DATA_COMPRESSION_FBC 0x02 35 #define MCS_DATA_COMPRESSION_DSC 0x03 36 37 /* Display Output control */ 38 #define MCS_PARAM_DISP_OUTPUT_CTRL 0xb4 39 #define MCS_DISP_OUT_SRAM_EN BIT(0) 40 #define MCS_DISP_OUT_VIDEO_MODE BIT(4) 41 42 /* VESA Display Stream Compression setting */ 43 #define MCS_PARAM_VESA_DSC_SETTING 0xc0 44 45 /* SubPixel Rendering (SPR) */ 46 #define MCS_PARAM_SPR_EN 0xe3 47 #define MCS_PARAM_SPR_MODE 0xef 48 #define MCS_SPR_MODE_YYG_RAINBOW_RGB 0x01 49 50 #define NT35950_VREG_MAX 4 51 52 struct nt35950 { 53 struct drm_panel panel; 54 struct drm_connector *connector; 55 struct mipi_dsi_device *dsi[2]; 56 struct regulator_bulk_data vregs[NT35950_VREG_MAX]; 57 struct gpio_desc *reset_gpio; 58 const struct nt35950_panel_desc *desc; 59 60 int cur_mode; 61 u8 last_page; 62 bool prepared; 63 }; 64 65 struct nt35950_panel_mode { 66 const struct drm_display_mode mode; 67 68 bool enable_sram; 69 bool is_video_mode; 70 u8 scaler_on; 71 u8 scaler_mode; 72 u8 compression; 73 u8 spr_en; 74 u8 spr_mode; 75 }; 76 77 struct nt35950_panel_desc { 78 const char *model_name; 79 const struct mipi_dsi_device_info dsi_info; 80 const struct nt35950_panel_mode *mode_data; 81 82 bool is_dual_dsi; 83 u8 num_lanes; 84 u8 num_modes; 85 }; 86 87 static inline struct nt35950 *to_nt35950(struct drm_panel *panel) 88 { 89 return container_of(panel, struct nt35950, panel); 90 } 91 92 static void nt35950_reset(struct nt35950 *nt) 93 { 94 gpiod_set_value_cansleep(nt->reset_gpio, 1); 95 usleep_range(12000, 13000); 96 gpiod_set_value_cansleep(nt->reset_gpio, 0); 97 usleep_range(300, 400); 98 gpiod_set_value_cansleep(nt->reset_gpio, 1); 99 usleep_range(12000, 13000); 100 } 101 102 /* 103 * nt35950_set_cmd2_page - Select manufacturer control (CMD2) page 104 * @nt: Main driver structure 105 * @page: Page number (0-7) 106 * 107 * Return: Number of transferred bytes or negative number on error 108 */ 109 static int nt35950_set_cmd2_page(struct nt35950 *nt, u8 page) 110 { 111 const u8 mauc_cmd2_page[] = { MCS_CMD_MAUCCTR, 0x55, 0xaa, 0x52, 112 0x08, page }; 113 int ret; 114 115 ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], mauc_cmd2_page, 116 ARRAY_SIZE(mauc_cmd2_page)); 117 if (ret < 0) 118 return ret; 119 120 nt->last_page = page; 121 return 0; 122 } 123 124 /* 125 * nt35950_set_data_compression - Set data compression mode 126 * @nt: Main driver structure 127 * @comp_mode: Compression mode 128 * 129 * Return: Number of transferred bytes or negative number on error 130 */ 131 static int nt35950_set_data_compression(struct nt35950 *nt, u8 comp_mode) 132 { 133 u8 cmd_data_compression[] = { MCS_PARAM_DATA_COMPRESSION, comp_mode }; 134 u8 cmd_vesa_dsc_on[] = { MCS_PARAM_VESA_DSC_ON, !!comp_mode }; 135 u8 cmd_vesa_dsc_setting[] = { MCS_PARAM_VESA_DSC_SETTING, 0x03 }; 136 u8 last_page = nt->last_page; 137 int ret; 138 139 /* Set CMD2 Page 0 if we're not there yet */ 140 if (last_page != 0) { 141 ret = nt35950_set_cmd2_page(nt, 0); 142 if (ret < 0) 143 return ret; 144 } 145 146 ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_data_compression, 147 ARRAY_SIZE(cmd_data_compression)); 148 if (ret < 0) 149 return ret; 150 151 ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_vesa_dsc_on, 152 ARRAY_SIZE(cmd_vesa_dsc_on)); 153 if (ret < 0) 154 return ret; 155 156 /* Set the vesa dsc setting on Page 4 */ 157 ret = nt35950_set_cmd2_page(nt, 4); 158 if (ret < 0) 159 return ret; 160 161 /* Display Stream Compression setting, always 0x03 */ 162 ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_vesa_dsc_setting, 163 ARRAY_SIZE(cmd_vesa_dsc_setting)); 164 if (ret < 0) 165 return ret; 166 167 /* Get back to the previously set page */ 168 return nt35950_set_cmd2_page(nt, last_page); 169 } 170 171 /* 172 * nt35950_set_scaler - Enable/disable resolution upscaling 173 * @nt: Main driver structure 174 * @scale_up: Scale up function control 175 * 176 * Return: Number of transferred bytes or negative number on error 177 */ 178 static int nt35950_set_scaler(struct nt35950 *nt, u8 scale_up) 179 { 180 u8 cmd_scaler[] = { MCS_PARAM_SCALER_FUNCTION, scale_up }; 181 182 return mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_scaler, 183 ARRAY_SIZE(cmd_scaler)); 184 } 185 186 /* 187 * nt35950_set_scale_mode - Resolution upscaling mode 188 * @nt: Main driver structure 189 * @mode: Scaler mode (MCS_DATA_COMPRESSION_*) 190 * 191 * Return: Number of transferred bytes or negative number on error 192 */ 193 static int nt35950_set_scale_mode(struct nt35950 *nt, u8 mode) 194 { 195 u8 cmd_scaler[] = { MCS_PARAM_SCALEUP_MODE, mode }; 196 197 return mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_scaler, 198 ARRAY_SIZE(cmd_scaler)); 199 } 200 201 /* 202 * nt35950_inject_black_image - Display a completely black image 203 * @nt: Main driver structure 204 * 205 * After IC setup, the attached panel may show random data 206 * due to driveric behavior changes (resolution, compression, 207 * scaling, etc). This function, called after parameters setup, 208 * makes the driver ic to output a completely black image to 209 * the display. 210 * It makes sense to push a black image before sending the sleep-out 211 * and display-on commands. 212 * 213 * Return: Number of transferred bytes or negative number on error 214 */ 215 static int nt35950_inject_black_image(struct nt35950 *nt) 216 { 217 const u8 cmd0_black_img[] = { 0x6f, 0x01 }; 218 const u8 cmd1_black_img[] = { 0xf3, 0x10 }; 219 u8 cmd_test[] = { 0xff, 0xaa, 0x55, 0xa5, 0x80 }; 220 int ret; 221 222 /* Enable test command */ 223 ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_test, ARRAY_SIZE(cmd_test)); 224 if (ret < 0) 225 return ret; 226 227 /* Send a black image */ 228 ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd0_black_img, 229 ARRAY_SIZE(cmd0_black_img)); 230 if (ret < 0) 231 return ret; 232 ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd1_black_img, 233 ARRAY_SIZE(cmd1_black_img)); 234 if (ret < 0) 235 return ret; 236 237 /* Disable test command */ 238 cmd_test[ARRAY_SIZE(cmd_test) - 1] = 0x00; 239 return mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_test, ARRAY_SIZE(cmd_test)); 240 } 241 242 /* 243 * nt35950_set_dispout - Set Display Output register parameters 244 * @nt: Main driver structure 245 * 246 * Return: Number of transferred bytes or negative number on error 247 */ 248 static int nt35950_set_dispout(struct nt35950 *nt) 249 { 250 u8 cmd_dispout[] = { MCS_PARAM_DISP_OUTPUT_CTRL, 0x00 }; 251 const struct nt35950_panel_mode *mode_data = nt->desc->mode_data; 252 253 if (mode_data[nt->cur_mode].is_video_mode) 254 cmd_dispout[1] |= MCS_DISP_OUT_VIDEO_MODE; 255 if (mode_data[nt->cur_mode].enable_sram) 256 cmd_dispout[1] |= MCS_DISP_OUT_SRAM_EN; 257 258 return mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_dispout, 259 ARRAY_SIZE(cmd_dispout)); 260 } 261 262 static int nt35950_get_current_mode(struct nt35950 *nt) 263 { 264 struct drm_connector *connector = nt->connector; 265 struct drm_crtc_state *crtc_state; 266 int i; 267 268 /* Return the default (first) mode if no info available yet */ 269 if (!connector->state || !connector->state->crtc) 270 return 0; 271 272 crtc_state = connector->state->crtc->state; 273 274 for (i = 0; i < nt->desc->num_modes; i++) { 275 if (drm_mode_match(&crtc_state->mode, 276 &nt->desc->mode_data[i].mode, 277 DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_CLOCK)) 278 return i; 279 } 280 281 return 0; 282 } 283 284 static int nt35950_on(struct nt35950 *nt) 285 { 286 const struct nt35950_panel_mode *mode_data = nt->desc->mode_data; 287 struct mipi_dsi_device *dsi = nt->dsi[0]; 288 struct device *dev = &dsi->dev; 289 int ret; 290 291 nt->cur_mode = nt35950_get_current_mode(nt); 292 nt->dsi[0]->mode_flags |= MIPI_DSI_MODE_LPM; 293 nt->dsi[1]->mode_flags |= MIPI_DSI_MODE_LPM; 294 295 ret = nt35950_set_cmd2_page(nt, 0); 296 if (ret < 0) 297 return ret; 298 299 ret = nt35950_set_data_compression(nt, mode_data[nt->cur_mode].compression); 300 if (ret < 0) 301 return ret; 302 303 ret = nt35950_set_scale_mode(nt, mode_data[nt->cur_mode].scaler_mode); 304 if (ret < 0) 305 return ret; 306 307 ret = nt35950_set_scaler(nt, mode_data[nt->cur_mode].scaler_on); 308 if (ret < 0) 309 return ret; 310 311 ret = nt35950_set_dispout(nt); 312 if (ret < 0) 313 return ret; 314 315 ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK); 316 if (ret < 0) { 317 dev_err(dev, "Failed to set tear on: %d\n", ret); 318 return ret; 319 } 320 321 ret = mipi_dsi_dcs_set_tear_scanline(dsi, 0); 322 if (ret < 0) { 323 dev_err(dev, "Failed to set tear scanline: %d\n", ret); 324 return ret; 325 } 326 327 /* CMD2 Page 1 */ 328 ret = nt35950_set_cmd2_page(nt, 1); 329 if (ret < 0) 330 return ret; 331 332 /* Unknown command */ 333 mipi_dsi_dcs_write_seq(dsi, 0xd4, 0x88, 0x88); 334 335 /* CMD2 Page 7 */ 336 ret = nt35950_set_cmd2_page(nt, 7); 337 if (ret < 0) 338 return ret; 339 340 /* Enable SubPixel Rendering */ 341 mipi_dsi_dcs_write_seq(dsi, MCS_PARAM_SPR_EN, 0x01); 342 343 /* SPR Mode: YYG Rainbow-RGB */ 344 mipi_dsi_dcs_write_seq(dsi, MCS_PARAM_SPR_MODE, MCS_SPR_MODE_YYG_RAINBOW_RGB); 345 346 /* CMD3 */ 347 ret = nt35950_inject_black_image(nt); 348 if (ret < 0) 349 return ret; 350 351 ret = mipi_dsi_dcs_exit_sleep_mode(dsi); 352 if (ret < 0) 353 return ret; 354 msleep(120); 355 356 ret = mipi_dsi_dcs_set_display_on(dsi); 357 if (ret < 0) 358 return ret; 359 msleep(120); 360 361 nt->dsi[0]->mode_flags &= ~MIPI_DSI_MODE_LPM; 362 nt->dsi[1]->mode_flags &= ~MIPI_DSI_MODE_LPM; 363 364 return 0; 365 } 366 367 static int nt35950_off(struct nt35950 *nt) 368 { 369 struct device *dev = &nt->dsi[0]->dev; 370 int ret; 371 372 ret = mipi_dsi_dcs_set_display_off(nt->dsi[0]); 373 if (ret < 0) { 374 dev_err(dev, "Failed to set display off: %d\n", ret); 375 goto set_lpm; 376 } 377 usleep_range(10000, 11000); 378 379 ret = mipi_dsi_dcs_enter_sleep_mode(nt->dsi[0]); 380 if (ret < 0) { 381 dev_err(dev, "Failed to enter sleep mode: %d\n", ret); 382 goto set_lpm; 383 } 384 msleep(150); 385 386 set_lpm: 387 nt->dsi[0]->mode_flags |= MIPI_DSI_MODE_LPM; 388 nt->dsi[1]->mode_flags |= MIPI_DSI_MODE_LPM; 389 390 return 0; 391 } 392 393 static int nt35950_sharp_init_vregs(struct nt35950 *nt, struct device *dev) 394 { 395 int ret; 396 397 nt->vregs[0].supply = "vddio"; 398 nt->vregs[1].supply = "avdd"; 399 nt->vregs[2].supply = "avee"; 400 nt->vregs[3].supply = "dvdd"; 401 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(nt->vregs), 402 nt->vregs); 403 if (ret < 0) 404 return ret; 405 406 ret = regulator_is_supported_voltage(nt->vregs[0].consumer, 407 1750000, 1950000); 408 if (!ret) 409 return -EINVAL; 410 ret = regulator_is_supported_voltage(nt->vregs[1].consumer, 411 5200000, 5900000); 412 if (!ret) 413 return -EINVAL; 414 /* AVEE is negative: -5.90V to -5.20V */ 415 ret = regulator_is_supported_voltage(nt->vregs[2].consumer, 416 5200000, 5900000); 417 if (!ret) 418 return -EINVAL; 419 420 ret = regulator_is_supported_voltage(nt->vregs[3].consumer, 421 1300000, 1400000); 422 if (!ret) 423 return -EINVAL; 424 425 return 0; 426 } 427 428 static int nt35950_prepare(struct drm_panel *panel) 429 { 430 struct nt35950 *nt = to_nt35950(panel); 431 struct device *dev = &nt->dsi[0]->dev; 432 int ret; 433 434 if (nt->prepared) 435 return 0; 436 437 ret = regulator_enable(nt->vregs[0].consumer); 438 if (ret) 439 return ret; 440 usleep_range(2000, 5000); 441 442 ret = regulator_enable(nt->vregs[3].consumer); 443 if (ret) 444 goto end; 445 usleep_range(15000, 18000); 446 447 ret = regulator_enable(nt->vregs[1].consumer); 448 if (ret) 449 goto end; 450 451 ret = regulator_enable(nt->vregs[2].consumer); 452 if (ret) 453 goto end; 454 usleep_range(12000, 13000); 455 456 nt35950_reset(nt); 457 458 ret = nt35950_on(nt); 459 if (ret < 0) { 460 dev_err(dev, "Failed to initialize panel: %d\n", ret); 461 goto end; 462 } 463 nt->prepared = true; 464 465 end: 466 if (ret < 0) { 467 regulator_bulk_disable(ARRAY_SIZE(nt->vregs), nt->vregs); 468 return ret; 469 } 470 471 return 0; 472 } 473 474 static int nt35950_unprepare(struct drm_panel *panel) 475 { 476 struct nt35950 *nt = to_nt35950(panel); 477 struct device *dev = &nt->dsi[0]->dev; 478 int ret; 479 480 if (!nt->prepared) 481 return 0; 482 483 ret = nt35950_off(nt); 484 if (ret < 0) 485 dev_err(dev, "Failed to deinitialize panel: %d\n", ret); 486 487 gpiod_set_value_cansleep(nt->reset_gpio, 0); 488 regulator_bulk_disable(ARRAY_SIZE(nt->vregs), nt->vregs); 489 490 nt->prepared = false; 491 return 0; 492 } 493 494 static int nt35950_get_modes(struct drm_panel *panel, 495 struct drm_connector *connector) 496 { 497 struct nt35950 *nt = to_nt35950(panel); 498 int i; 499 500 for (i = 0; i < nt->desc->num_modes; i++) { 501 struct drm_display_mode *mode; 502 503 mode = drm_mode_duplicate(connector->dev, 504 &nt->desc->mode_data[i].mode); 505 if (!mode) 506 return -ENOMEM; 507 508 drm_mode_set_name(mode); 509 510 mode->type |= DRM_MODE_TYPE_DRIVER; 511 if (nt->desc->num_modes == 1) 512 mode->type |= DRM_MODE_TYPE_PREFERRED; 513 514 drm_mode_probed_add(connector, mode); 515 } 516 517 connector->display_info.bpc = 8; 518 connector->display_info.height_mm = nt->desc->mode_data[0].mode.height_mm; 519 connector->display_info.width_mm = nt->desc->mode_data[0].mode.width_mm; 520 nt->connector = connector; 521 522 return nt->desc->num_modes; 523 } 524 525 static const struct drm_panel_funcs nt35950_panel_funcs = { 526 .prepare = nt35950_prepare, 527 .unprepare = nt35950_unprepare, 528 .get_modes = nt35950_get_modes, 529 }; 530 531 static int nt35950_probe(struct mipi_dsi_device *dsi) 532 { 533 struct device *dev = &dsi->dev; 534 struct device_node *dsi_r; 535 struct mipi_dsi_host *dsi_r_host; 536 struct nt35950 *nt; 537 const struct mipi_dsi_device_info *info; 538 int i, num_dsis = 1, ret; 539 540 nt = devm_kzalloc(dev, sizeof(*nt), GFP_KERNEL); 541 if (!nt) 542 return -ENOMEM; 543 544 ret = nt35950_sharp_init_vregs(nt, dev); 545 if (ret) 546 return dev_err_probe(dev, ret, "Regulator init failure.\n"); 547 548 nt->desc = of_device_get_match_data(dev); 549 if (!nt->desc) 550 return -ENODEV; 551 552 nt->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_ASIS); 553 if (IS_ERR(nt->reset_gpio)) { 554 return dev_err_probe(dev, PTR_ERR(nt->reset_gpio), 555 "Failed to get reset gpio\n"); 556 } 557 558 /* If the panel is connected on two DSIs then DSI0 left, DSI1 right */ 559 if (nt->desc->is_dual_dsi) { 560 info = &nt->desc->dsi_info; 561 dsi_r = of_graph_get_remote_node(dsi->dev.of_node, 1, -1); 562 if (!dsi_r) { 563 dev_err(dev, "Cannot get secondary DSI node.\n"); 564 return -ENODEV; 565 } 566 dsi_r_host = of_find_mipi_dsi_host_by_node(dsi_r); 567 of_node_put(dsi_r); 568 if (!dsi_r_host) 569 return dev_err_probe(dev, -EPROBE_DEFER, "Cannot get secondary DSI host\n"); 570 571 nt->dsi[1] = mipi_dsi_device_register_full(dsi_r_host, info); 572 if (!nt->dsi[1]) { 573 dev_err(dev, "Cannot get secondary DSI node\n"); 574 return -ENODEV; 575 } 576 num_dsis++; 577 } 578 579 nt->dsi[0] = dsi; 580 mipi_dsi_set_drvdata(dsi, nt); 581 582 drm_panel_init(&nt->panel, dev, &nt35950_panel_funcs, 583 DRM_MODE_CONNECTOR_DSI); 584 585 ret = drm_panel_of_backlight(&nt->panel); 586 if (ret) { 587 if (num_dsis == 2) 588 mipi_dsi_device_unregister(nt->dsi[1]); 589 590 return dev_err_probe(dev, ret, "Failed to get backlight\n"); 591 } 592 593 drm_panel_add(&nt->panel); 594 595 for (i = 0; i < num_dsis; i++) { 596 nt->dsi[i]->lanes = nt->desc->num_lanes; 597 nt->dsi[i]->format = MIPI_DSI_FMT_RGB888; 598 599 nt->dsi[i]->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS | 600 MIPI_DSI_MODE_LPM; 601 602 if (nt->desc->mode_data[0].is_video_mode) 603 nt->dsi[i]->mode_flags |= MIPI_DSI_MODE_VIDEO; 604 605 ret = mipi_dsi_attach(nt->dsi[i]); 606 if (ret < 0) { 607 /* If we fail to attach to either host, we're done */ 608 if (num_dsis == 2) 609 mipi_dsi_device_unregister(nt->dsi[1]); 610 611 return dev_err_probe(dev, ret, 612 "Cannot attach to DSI%d host.\n", i); 613 } 614 } 615 616 /* Make sure to set RESX LOW before starting the power-on sequence */ 617 gpiod_set_value_cansleep(nt->reset_gpio, 0); 618 return 0; 619 } 620 621 static void nt35950_remove(struct mipi_dsi_device *dsi) 622 { 623 struct nt35950 *nt = mipi_dsi_get_drvdata(dsi); 624 int ret; 625 626 ret = mipi_dsi_detach(nt->dsi[0]); 627 if (ret < 0) 628 dev_err(&dsi->dev, 629 "Failed to detach from DSI0 host: %d\n", ret); 630 631 if (nt->dsi[1]) { 632 ret = mipi_dsi_detach(nt->dsi[1]); 633 if (ret < 0) 634 dev_err(&dsi->dev, 635 "Failed to detach from DSI1 host: %d\n", ret); 636 mipi_dsi_device_unregister(nt->dsi[1]); 637 } 638 639 drm_panel_remove(&nt->panel); 640 } 641 642 static const struct nt35950_panel_mode sharp_ls055d1sx04_modes[] = { 643 { 644 /* 1920x1080 60Hz no compression */ 645 .mode = { 646 .clock = 214537, 647 .hdisplay = 1080, 648 .hsync_start = 1080 + 400, 649 .hsync_end = 1080 + 400 + 40, 650 .htotal = 1080 + 400 + 40 + 300, 651 .vdisplay = 1920, 652 .vsync_start = 1920 + 12, 653 .vsync_end = 1920 + 12 + 2, 654 .vtotal = 1920 + 12 + 2 + 10, 655 .width_mm = 68, 656 .height_mm = 121, 657 }, 658 .compression = MCS_DATA_COMPRESSION_NONE, 659 .enable_sram = true, 660 .is_video_mode = false, 661 .scaler_on = 1, 662 .scaler_mode = MCS_SCALEUP_DUPLICATE, 663 }, 664 /* TODO: Add 2160x3840 60Hz when DSC is supported */ 665 }; 666 667 static const struct nt35950_panel_desc sharp_ls055d1sx04 = { 668 .model_name = "Sharp LS055D1SX04", 669 .dsi_info = { 670 .type = "LS055D1SX04", 671 .channel = 0, 672 .node = NULL, 673 }, 674 .mode_data = sharp_ls055d1sx04_modes, 675 .num_modes = ARRAY_SIZE(sharp_ls055d1sx04_modes), 676 .is_dual_dsi = true, 677 .num_lanes = 4, 678 }; 679 680 static const struct of_device_id nt35950_of_match[] = { 681 { .compatible = "sharp,ls055d1sx04", .data = &sharp_ls055d1sx04 }, 682 { } 683 }; 684 MODULE_DEVICE_TABLE(of, nt35950_of_match); 685 686 static struct mipi_dsi_driver nt35950_driver = { 687 .probe = nt35950_probe, 688 .remove = nt35950_remove, 689 .driver = { 690 .name = "panel-novatek-nt35950", 691 .of_match_table = nt35950_of_match, 692 }, 693 }; 694 module_mipi_dsi_driver(nt35950_driver); 695 696 MODULE_AUTHOR("AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>"); 697 MODULE_DESCRIPTION("Novatek NT35950 DriverIC panels driver"); 698 MODULE_LICENSE("GPL v2"); 699