703 lines · c
1// SPDX-License-Identifier: GPL-2.0+2/*3 * Copyright (c) 2019 Theobroma Systems Design und Consulting GmbH4 *5 * base on panel-kingdisplay-kd097d04.c6 * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd7 */8 9#include <linux/backlight.h>10#include <linux/delay.h>11#include <linux/gpio/consumer.h>12#include <linux/module.h>13#include <linux/of.h>14#include <linux/of_device.h>15#include <linux/regulator/consumer.h>16 17#include <video/mipi_display.h>18 19#include <drm/drm_crtc.h>20#include <drm/drm_device.h>21#include <drm/drm_mipi_dsi.h>22#include <drm/drm_modes.h>23#include <drm/drm_panel.h>24 25struct ltk500hd1829_cmd {26 char cmd;27 char data;28};29 30struct ltk500hd1829_desc {31 const struct drm_display_mode *mode;32 const struct ltk500hd1829_cmd *init;33 unsigned int num_init;34};35 36struct ltk500hd1829 {37 struct device *dev;38 struct drm_panel panel;39 struct gpio_desc *reset_gpio;40 struct regulator *vcc;41 struct regulator *iovcc;42 const struct ltk500hd1829_desc *panel_desc;43};44 45static const struct ltk500hd1829_cmd ltk101b4029w_init[] = {46 /* Page0 */47 { 0xE0, 0x00 },48 /* PASSWORD */49 { 0xE1, 0x93 },50 { 0xE2, 0x65 },51 { 0xE3, 0xF8 },52 { 0x80, 0x03 }, /* 0X03:4-LANE; 0X02:3-LANE; 0X01:2-LANE */53 /* Page1 */54 { 0xE0, 0x01 },55 /* Set VCOM */56 { 0x00, 0x00 },57 { 0x01, 0x6F },58 /* Set Gamma Power, VGMP,VGMN,VGSP,VGSN */59 { 0x17, 0x00 },60 { 0x18, 0xAF }, /* 4.3V */61 { 0x19, 0x01 }, /* 0.3V */62 { 0x1A, 0x00 },63 { 0x1B, 0xAF }, /* 4.3V */64 { 0x1C, 0x01 }, /* 0.3V */65 /* Set Gate Power */66 { 0x1F, 0x3E }, /* VGH_R = 15V */67 { 0x20, 0x28 }, /* VGL_R = -12V */68 { 0x21, 0x28 }, /* VGL_R2 = -12V */69 { 0x22, 0x7E },70 /* SETPANEL */71 { 0x35, 0x26 },72 { 0x37, 0x09 },73 /* SET RGBCYC */74 { 0x38, 0x04 },75 { 0x39, 0x00 },76 { 0x3A, 0x01 },77 { 0x3C, 0x7C },78 { 0x3D, 0xFF },79 { 0x3E, 0xFF },80 { 0x3F, 0x7F },81 /* Set TCON */82 { 0x40, 0x06 }, /* RSO = 800 RGB */83 { 0x41, 0xA0 }, /* LN = 640->1280 line */84 { 0x42, 0x81 },85 { 0x43, 0x08 }, /* VFP = 8 */86 { 0x44, 0x0B }, /* VBP = 12 */87 { 0x45, 0x28 }, /* HBP = 40 */88 /* power voltage */89 { 0x55, 0x0F }, /* DCDCM = 0001, JD PWR_IC */90 { 0x57, 0x69 },91 { 0x59, 0x0A }, /* VCL = -2.9V */92 { 0x5A, 0x28 }, /* VGH = 15V */93 { 0x5B, 0x14 }, /* VGL = -11V */94 /* Gamma */95 { 0x5D, 0x7C },96 { 0x5E, 0x65 },97 { 0x5F, 0x55 },98 { 0x60, 0x47 },99 { 0x61, 0x43 },100 { 0x62, 0x32 },101 { 0x63, 0x34 },102 { 0x64, 0x1C },103 { 0x65, 0x33 },104 { 0x66, 0x31 },105 { 0x67, 0x30 },106 { 0x68, 0x4E },107 { 0x69, 0x3C },108 { 0x6A, 0x44 },109 { 0x6B, 0x35 },110 { 0x6C, 0x31 },111 { 0x6D, 0x23 },112 { 0x6E, 0x11 },113 { 0x6F, 0x00 },114 { 0x70, 0x7C },115 { 0x71, 0x65 },116 { 0x72, 0x55 },117 { 0x73, 0x47 },118 { 0x74, 0x43 },119 { 0x75, 0x32 },120 { 0x76, 0x34 },121 { 0x77, 0x1C },122 { 0x78, 0x33 },123 { 0x79, 0x31 },124 { 0x7A, 0x30 },125 { 0x7B, 0x4E },126 { 0x7C, 0x3C },127 { 0x7D, 0x44 },128 { 0x7E, 0x35 },129 { 0x7F, 0x31 },130 { 0x80, 0x23 },131 { 0x81, 0x11 },132 { 0x82, 0x00 },133 /* Page2, for GIP */134 { 0xE0, 0x02 },135 /* GIP_L Pin mapping */136 { 0x00, 0x1E },137 { 0x01, 0x1E },138 { 0x02, 0x41 },139 { 0x03, 0x41 },140 { 0x04, 0x43 },141 { 0x05, 0x43 },142 { 0x06, 0x1F },143 { 0x07, 0x1F },144 { 0x08, 0x35 },145 { 0x09, 0x1F },146 { 0x0A, 0x15 },147 { 0x0B, 0x15 },148 { 0x0C, 0x1F },149 { 0x0D, 0x47 },150 { 0x0E, 0x47 },151 { 0x0F, 0x45 },152 { 0x10, 0x45 },153 { 0x11, 0x4B },154 { 0x12, 0x4B },155 { 0x13, 0x49 },156 { 0x14, 0x49 },157 { 0x15, 0x1F },158 /* GIP_R Pin mapping */159 { 0x16, 0x1E },160 { 0x17, 0x1E },161 { 0x18, 0x40 },162 { 0x19, 0x40 },163 { 0x1A, 0x42 },164 { 0x1B, 0x42 },165 { 0x1C, 0x1F },166 { 0x1D, 0x1F },167 { 0x1E, 0x35 },168 { 0x1F, 0x1F },169 { 0x20, 0x15 },170 { 0x21, 0x15 },171 { 0x22, 0x1f },172 { 0x23, 0x46 },173 { 0x24, 0x46 },174 { 0x25, 0x44 },175 { 0x26, 0x44 },176 { 0x27, 0x4A },177 { 0x28, 0x4A },178 { 0x29, 0x48 },179 { 0x2A, 0x48 },180 { 0x2B, 0x1F },181 /* GIP Timing */182 { 0x58, 0x40 },183 { 0x5B, 0x30 },184 { 0x5C, 0x03 },185 { 0x5D, 0x30 },186 { 0x5E, 0x01 },187 { 0x5F, 0x02 },188 { 0x63, 0x14 },189 { 0x64, 0x6A },190 { 0x67, 0x73 },191 { 0x68, 0x05 },192 { 0x69, 0x14 },193 { 0x6A, 0x6A },194 { 0x6B, 0x08 },195 { 0x6C, 0x00 },196 { 0x6D, 0x00 },197 { 0x6E, 0x00 },198 { 0x6F, 0x88 },199 { 0x77, 0xDD },200 { 0x79, 0x0E },201 { 0x7A, 0x03 },202 { 0x7D, 0x14 },203 { 0x7E, 0x6A },204 /* Page4 */205 { 0xE0, 0x04 },206 { 0x09, 0x11 },207 { 0x0E, 0x48 },208 { 0x2B, 0x2B },209 { 0x2D, 0x03 },210 { 0x2E, 0x44 },211 /* Page0 */212 { 0xE0, 0x00 },213 { 0xE6, 0x02 },214 { 0xE7, 0x0C },215};216 217static const struct drm_display_mode ltk101b4029w_mode = {218 .hdisplay = 800,219 .hsync_start = 800 + 18,220 .hsync_end = 800 + 18 + 18,221 .htotal = 800 + 18 + 18 + 18,222 .vdisplay = 1280,223 .vsync_start = 1280 + 24,224 .vsync_end = 1280 + 24 + 4,225 .vtotal = 1280 + 24 + 4 + 8,226 .clock = 67330,227 .width_mm = 136,228 .height_mm = 218,229};230 231static const struct ltk500hd1829_desc ltk101b4029w_data = {232 .mode = <k101b4029w_mode,233 .init = ltk101b4029w_init,234 .num_init = ARRAY_SIZE(ltk101b4029w_init),235};236 237/*238 * There is no description in the Reference Manual about these commands.239 * We received them from the vendor, so just use them as is.240 */241static const struct ltk500hd1829_cmd ltk500hd1829_init[] = {242 { 0xE0, 0x00 },243 { 0xE1, 0x93 },244 { 0xE2, 0x65 },245 { 0xE3, 0xF8 },246 { 0x80, 0x03 },247 { 0xE0, 0x04 },248 { 0x2D, 0x03 },249 { 0xE0, 0x01 },250 { 0x00, 0x00 },251 { 0x01, 0xB6 },252 { 0x03, 0x00 },253 { 0x04, 0xC5 },254 { 0x17, 0x00 },255 { 0x18, 0xBF },256 { 0x19, 0x01 },257 { 0x1A, 0x00 },258 { 0x1B, 0xBF },259 { 0x1C, 0x01 },260 { 0x1F, 0x7C },261 { 0x20, 0x26 },262 { 0x21, 0x26 },263 { 0x22, 0x4E },264 { 0x37, 0x09 },265 { 0x38, 0x04 },266 { 0x39, 0x08 },267 { 0x3A, 0x1F },268 { 0x3B, 0x1F },269 { 0x3C, 0x78 },270 { 0x3D, 0xFF },271 { 0x3E, 0xFF },272 { 0x3F, 0x00 },273 { 0x40, 0x04 },274 { 0x41, 0xA0 },275 { 0x43, 0x0F },276 { 0x44, 0x0A },277 { 0x45, 0x24 },278 { 0x55, 0x01 },279 { 0x56, 0x01 },280 { 0x57, 0xA5 },281 { 0x58, 0x0A },282 { 0x59, 0x4A },283 { 0x5A, 0x38 },284 { 0x5B, 0x10 },285 { 0x5C, 0x19 },286 { 0x5D, 0x7C },287 { 0x5E, 0x64 },288 { 0x5F, 0x54 },289 { 0x60, 0x48 },290 { 0x61, 0x44 },291 { 0x62, 0x35 },292 { 0x63, 0x3A },293 { 0x64, 0x24 },294 { 0x65, 0x3B },295 { 0x66, 0x39 },296 { 0x67, 0x37 },297 { 0x68, 0x56 },298 { 0x69, 0x41 },299 { 0x6A, 0x47 },300 { 0x6B, 0x2F },301 { 0x6C, 0x23 },302 { 0x6D, 0x13 },303 { 0x6E, 0x02 },304 { 0x6F, 0x08 },305 { 0x70, 0x7C },306 { 0x71, 0x64 },307 { 0x72, 0x54 },308 { 0x73, 0x48 },309 { 0x74, 0x44 },310 { 0x75, 0x35 },311 { 0x76, 0x3A },312 { 0x77, 0x22 },313 { 0x78, 0x3B },314 { 0x79, 0x39 },315 { 0x7A, 0x38 },316 { 0x7B, 0x52 },317 { 0x7C, 0x41 },318 { 0x7D, 0x47 },319 { 0x7E, 0x2F },320 { 0x7F, 0x23 },321 { 0x80, 0x13 },322 { 0x81, 0x02 },323 { 0x82, 0x08 },324 { 0xE0, 0x02 },325 { 0x00, 0x57 },326 { 0x01, 0x77 },327 { 0x02, 0x44 },328 { 0x03, 0x46 },329 { 0x04, 0x48 },330 { 0x05, 0x4A },331 { 0x06, 0x4C },332 { 0x07, 0x4E },333 { 0x08, 0x50 },334 { 0x09, 0x55 },335 { 0x0A, 0x52 },336 { 0x0B, 0x55 },337 { 0x0C, 0x55 },338 { 0x0D, 0x55 },339 { 0x0E, 0x55 },340 { 0x0F, 0x55 },341 { 0x10, 0x55 },342 { 0x11, 0x55 },343 { 0x12, 0x55 },344 { 0x13, 0x40 },345 { 0x14, 0x55 },346 { 0x15, 0x55 },347 { 0x16, 0x57 },348 { 0x17, 0x77 },349 { 0x18, 0x45 },350 { 0x19, 0x47 },351 { 0x1A, 0x49 },352 { 0x1B, 0x4B },353 { 0x1C, 0x4D },354 { 0x1D, 0x4F },355 { 0x1E, 0x51 },356 { 0x1F, 0x55 },357 { 0x20, 0x53 },358 { 0x21, 0x55 },359 { 0x22, 0x55 },360 { 0x23, 0x55 },361 { 0x24, 0x55 },362 { 0x25, 0x55 },363 { 0x26, 0x55 },364 { 0x27, 0x55 },365 { 0x28, 0x55 },366 { 0x29, 0x41 },367 { 0x2A, 0x55 },368 { 0x2B, 0x55 },369 { 0x2C, 0x57 },370 { 0x2D, 0x77 },371 { 0x2E, 0x4F },372 { 0x2F, 0x4D },373 { 0x30, 0x4B },374 { 0x31, 0x49 },375 { 0x32, 0x47 },376 { 0x33, 0x45 },377 { 0x34, 0x41 },378 { 0x35, 0x55 },379 { 0x36, 0x53 },380 { 0x37, 0x55 },381 { 0x38, 0x55 },382 { 0x39, 0x55 },383 { 0x3A, 0x55 },384 { 0x3B, 0x55 },385 { 0x3C, 0x55 },386 { 0x3D, 0x55 },387 { 0x3E, 0x55 },388 { 0x3F, 0x51 },389 { 0x40, 0x55 },390 { 0x41, 0x55 },391 { 0x42, 0x57 },392 { 0x43, 0x77 },393 { 0x44, 0x4E },394 { 0x45, 0x4C },395 { 0x46, 0x4A },396 { 0x47, 0x48 },397 { 0x48, 0x46 },398 { 0x49, 0x44 },399 { 0x4A, 0x40 },400 { 0x4B, 0x55 },401 { 0x4C, 0x52 },402 { 0x4D, 0x55 },403 { 0x4E, 0x55 },404 { 0x4F, 0x55 },405 { 0x50, 0x55 },406 { 0x51, 0x55 },407 { 0x52, 0x55 },408 { 0x53, 0x55 },409 { 0x54, 0x55 },410 { 0x55, 0x50 },411 { 0x56, 0x55 },412 { 0x57, 0x55 },413 { 0x58, 0x40 },414 { 0x59, 0x00 },415 { 0x5A, 0x00 },416 { 0x5B, 0x10 },417 { 0x5C, 0x09 },418 { 0x5D, 0x30 },419 { 0x5E, 0x01 },420 { 0x5F, 0x02 },421 { 0x60, 0x30 },422 { 0x61, 0x03 },423 { 0x62, 0x04 },424 { 0x63, 0x06 },425 { 0x64, 0x6A },426 { 0x65, 0x75 },427 { 0x66, 0x0F },428 { 0x67, 0xB3 },429 { 0x68, 0x0B },430 { 0x69, 0x06 },431 { 0x6A, 0x6A },432 { 0x6B, 0x10 },433 { 0x6C, 0x00 },434 { 0x6D, 0x04 },435 { 0x6E, 0x04 },436 { 0x6F, 0x88 },437 { 0x70, 0x00 },438 { 0x71, 0x00 },439 { 0x72, 0x06 },440 { 0x73, 0x7B },441 { 0x74, 0x00 },442 { 0x75, 0xBC },443 { 0x76, 0x00 },444 { 0x77, 0x05 },445 { 0x78, 0x2E },446 { 0x79, 0x00 },447 { 0x7A, 0x00 },448 { 0x7B, 0x00 },449 { 0x7C, 0x00 },450 { 0x7D, 0x03 },451 { 0x7E, 0x7B },452 { 0xE0, 0x04 },453 { 0x09, 0x10 },454 { 0x2B, 0x2B },455 { 0x2E, 0x44 },456 { 0xE0, 0x00 },457 { 0xE6, 0x02 },458 { 0xE7, 0x02 },459 { 0x35, 0x00 },460};461 462static const struct drm_display_mode ltk500hd1829_mode = {463 .hdisplay = 720,464 .hsync_start = 720 + 50,465 .hsync_end = 720 + 50 + 50,466 .htotal = 720 + 50 + 50 + 50,467 .vdisplay = 1280,468 .vsync_start = 1280 + 30,469 .vsync_end = 1280 + 30 + 4,470 .vtotal = 1280 + 30 + 4 + 12,471 .clock = 69217,472 .width_mm = 62,473 .height_mm = 110,474};475 476static const struct ltk500hd1829_desc ltk500hd1829_data = {477 .mode = <k500hd1829_mode,478 .init = ltk500hd1829_init,479 .num_init = ARRAY_SIZE(ltk500hd1829_init),480};481 482static inline483struct ltk500hd1829 *panel_to_ltk500hd1829(struct drm_panel *panel)484{485 return container_of(panel, struct ltk500hd1829, panel);486}487 488static int ltk500hd1829_unprepare(struct drm_panel *panel)489{490 struct ltk500hd1829 *ctx = panel_to_ltk500hd1829(panel);491 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);492 int ret;493 494 ret = mipi_dsi_dcs_set_display_off(dsi);495 if (ret < 0)496 dev_err(panel->dev, "failed to set display off: %d\n", ret);497 498 ret = mipi_dsi_dcs_enter_sleep_mode(dsi);499 if (ret < 0) {500 dev_err(panel->dev, "failed to enter sleep mode: %d\n", ret);501 }502 503 /* 120ms to enter sleep mode */504 msleep(120);505 506 regulator_disable(ctx->iovcc);507 regulator_disable(ctx->vcc);508 509 return 0;510}511 512static int ltk500hd1829_prepare(struct drm_panel *panel)513{514 struct ltk500hd1829 *ctx = panel_to_ltk500hd1829(panel);515 struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);516 unsigned int i;517 int ret;518 519 ret = regulator_enable(ctx->vcc);520 if (ret < 0) {521 dev_err(ctx->dev, "Failed to enable vci supply: %d\n", ret);522 return ret;523 }524 ret = regulator_enable(ctx->iovcc);525 if (ret < 0) {526 dev_err(ctx->dev, "Failed to enable iovcc supply: %d\n", ret);527 goto disable_vcc;528 }529 530 gpiod_set_value_cansleep(ctx->reset_gpio, 1);531 /* tRW: 10us */532 usleep_range(10, 20);533 gpiod_set_value_cansleep(ctx->reset_gpio, 0);534 535 /* tRT: >= 5ms */536 usleep_range(5000, 6000);537 538 for (i = 0; i < ctx->panel_desc->num_init; i++) {539 ret = mipi_dsi_generic_write(dsi, &ctx->panel_desc->init[i],540 sizeof(struct ltk500hd1829_cmd));541 if (ret < 0) {542 dev_err(panel->dev, "failed to write init cmds: %d\n", ret);543 goto disable_iovcc;544 }545 }546 547 ret = mipi_dsi_dcs_exit_sleep_mode(dsi);548 if (ret < 0) {549 dev_err(panel->dev, "failed to exit sleep mode: %d\n", ret);550 goto disable_iovcc;551 }552 553 /* 120ms to exit sleep mode */554 msleep(120);555 556 ret = mipi_dsi_dcs_set_display_on(dsi);557 if (ret < 0) {558 dev_err(panel->dev, "failed to set display on: %d\n", ret);559 goto disable_iovcc;560 }561 562 return 0;563 564disable_iovcc:565 regulator_disable(ctx->iovcc);566disable_vcc:567 regulator_disable(ctx->vcc);568 return ret;569}570 571static int ltk500hd1829_get_modes(struct drm_panel *panel,572 struct drm_connector *connector)573{574 struct ltk500hd1829 *ctx = panel_to_ltk500hd1829(panel);575 struct drm_display_mode *mode;576 577 mode = drm_mode_duplicate(connector->dev, ctx->panel_desc->mode);578 if (!mode) {579 dev_err(ctx->dev, "failed to add mode %ux%u@%u\n",580 ctx->panel_desc->mode->hdisplay, ctx->panel_desc->mode->vdisplay,581 drm_mode_vrefresh(ctx->panel_desc->mode));582 return -ENOMEM;583 }584 585 drm_mode_set_name(mode);586 587 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;588 connector->display_info.width_mm = mode->width_mm;589 connector->display_info.height_mm = mode->height_mm;590 drm_mode_probed_add(connector, mode);591 592 return 1;593}594 595static const struct drm_panel_funcs ltk500hd1829_funcs = {596 .unprepare = ltk500hd1829_unprepare,597 .prepare = ltk500hd1829_prepare,598 .get_modes = ltk500hd1829_get_modes,599};600 601static int ltk500hd1829_probe(struct mipi_dsi_device *dsi)602{603 struct ltk500hd1829 *ctx;604 struct device *dev = &dsi->dev;605 int ret;606 607 ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL);608 if (!ctx)609 return -ENOMEM;610 611 ctx->panel_desc = of_device_get_match_data(dev);612 if (!ctx->panel_desc)613 return -EINVAL;614 615 ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);616 if (IS_ERR(ctx->reset_gpio)) {617 dev_err(dev, "cannot get reset gpio\n");618 return PTR_ERR(ctx->reset_gpio);619 }620 621 ctx->vcc = devm_regulator_get(dev, "vcc");622 if (IS_ERR(ctx->vcc)) {623 ret = PTR_ERR(ctx->vcc);624 if (ret != -EPROBE_DEFER)625 dev_err(dev, "Failed to request vcc regulator: %d\n", ret);626 return ret;627 }628 629 ctx->iovcc = devm_regulator_get(dev, "iovcc");630 if (IS_ERR(ctx->iovcc)) {631 ret = PTR_ERR(ctx->iovcc);632 if (ret != -EPROBE_DEFER)633 dev_err(dev, "Failed to request iovcc regulator: %d\n", ret);634 return ret;635 }636 637 mipi_dsi_set_drvdata(dsi, ctx);638 639 ctx->dev = dev;640 641 dsi->lanes = 4;642 dsi->format = MIPI_DSI_FMT_RGB888;643 dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |644 MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET;645 646 drm_panel_init(&ctx->panel, &dsi->dev, <k500hd1829_funcs,647 DRM_MODE_CONNECTOR_DSI);648 649 ret = drm_panel_of_backlight(&ctx->panel);650 if (ret)651 return ret;652 653 drm_panel_add(&ctx->panel);654 655 ret = mipi_dsi_attach(dsi);656 if (ret < 0) {657 dev_err(dev, "mipi_dsi_attach failed: %d\n", ret);658 drm_panel_remove(&ctx->panel);659 return ret;660 }661 662 return 0;663}664 665static void ltk500hd1829_remove(struct mipi_dsi_device *dsi)666{667 struct ltk500hd1829 *ctx = mipi_dsi_get_drvdata(dsi);668 int ret;669 670 ret = mipi_dsi_detach(dsi);671 if (ret < 0)672 dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret);673 674 drm_panel_remove(&ctx->panel);675}676 677static const struct of_device_id ltk500hd1829_of_match[] = {678 {679 .compatible = "leadtek,ltk101b4029w",680 .data = <k101b4029w_data,681 },682 {683 .compatible = "leadtek,ltk500hd1829",684 .data = <k500hd1829_data,685 },686 { /* sentinel */ }687};688MODULE_DEVICE_TABLE(of, ltk500hd1829_of_match);689 690static struct mipi_dsi_driver ltk500hd1829_driver = {691 .driver = {692 .name = "panel-leadtek-ltk500hd1829",693 .of_match_table = ltk500hd1829_of_match,694 },695 .probe = ltk500hd1829_probe,696 .remove = ltk500hd1829_remove,697};698module_mipi_dsi_driver(ltk500hd1829_driver);699 700MODULE_AUTHOR("Heiko Stuebner <heiko.stuebner@theobroma-systems.com>");701MODULE_DESCRIPTION("Leadtek LTK500HD1829 panel driver");702MODULE_LICENSE("GPL v2");703