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_device.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
to_nt35950(struct drm_panel * panel)87 static inline struct nt35950 *to_nt35950(struct drm_panel *panel)
88 {
89 return container_of(panel, struct nt35950, panel);
90 }
91
92 #define dsi_dcs_write_seq(dsi, seq...) do { \
93 static const u8 d[] = { seq }; \
94 int ret; \
95 ret = mipi_dsi_dcs_write_buffer(dsi, d, ARRAY_SIZE(d)); \
96 if (ret < 0) \
97 return ret; \
98 } while (0)
99
nt35950_reset(struct nt35950 * nt)100 static void nt35950_reset(struct nt35950 *nt)
101 {
102 gpiod_set_value_cansleep(nt->reset_gpio, 1);
103 usleep_range(12000, 13000);
104 gpiod_set_value_cansleep(nt->reset_gpio, 0);
105 usleep_range(300, 400);
106 gpiod_set_value_cansleep(nt->reset_gpio, 1);
107 usleep_range(12000, 13000);
108 }
109
110 /*
111 * nt35950_set_cmd2_page - Select manufacturer control (CMD2) page
112 * @nt: Main driver structure
113 * @page: Page number (0-7)
114 *
115 * Return: Number of transferred bytes or negative number on error
116 */
nt35950_set_cmd2_page(struct nt35950 * nt,u8 page)117 static int nt35950_set_cmd2_page(struct nt35950 *nt, u8 page)
118 {
119 const u8 mauc_cmd2_page[] = { MCS_CMD_MAUCCTR, 0x55, 0xaa, 0x52,
120 0x08, page };
121 int ret;
122
123 ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], mauc_cmd2_page,
124 ARRAY_SIZE(mauc_cmd2_page));
125 if (ret < 0)
126 return ret;
127
128 nt->last_page = page;
129 return 0;
130 }
131
132 /*
133 * nt35950_set_data_compression - Set data compression mode
134 * @nt: Main driver structure
135 * @comp_mode: Compression mode
136 *
137 * Return: Number of transferred bytes or negative number on error
138 */
nt35950_set_data_compression(struct nt35950 * nt,u8 comp_mode)139 static int nt35950_set_data_compression(struct nt35950 *nt, u8 comp_mode)
140 {
141 u8 cmd_data_compression[] = { MCS_PARAM_DATA_COMPRESSION, comp_mode };
142 u8 cmd_vesa_dsc_on[] = { MCS_PARAM_VESA_DSC_ON, !!comp_mode };
143 u8 cmd_vesa_dsc_setting[] = { MCS_PARAM_VESA_DSC_SETTING, 0x03 };
144 u8 last_page = nt->last_page;
145 int ret;
146
147 /* Set CMD2 Page 0 if we're not there yet */
148 if (last_page != 0) {
149 ret = nt35950_set_cmd2_page(nt, 0);
150 if (ret < 0)
151 return ret;
152 }
153
154 ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_data_compression,
155 ARRAY_SIZE(cmd_data_compression));
156 if (ret < 0)
157 return ret;
158
159 ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_vesa_dsc_on,
160 ARRAY_SIZE(cmd_vesa_dsc_on));
161 if (ret < 0)
162 return ret;
163
164 /* Set the vesa dsc setting on Page 4 */
165 ret = nt35950_set_cmd2_page(nt, 4);
166 if (ret < 0)
167 return ret;
168
169 /* Display Stream Compression setting, always 0x03 */
170 ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_vesa_dsc_setting,
171 ARRAY_SIZE(cmd_vesa_dsc_setting));
172 if (ret < 0)
173 return ret;
174
175 /* Get back to the previously set page */
176 return nt35950_set_cmd2_page(nt, last_page);
177 }
178
179 /*
180 * nt35950_set_scaler - Enable/disable resolution upscaling
181 * @nt: Main driver structure
182 * @scale_up: Scale up function control
183 *
184 * Return: Number of transferred bytes or negative number on error
185 */
nt35950_set_scaler(struct nt35950 * nt,u8 scale_up)186 static int nt35950_set_scaler(struct nt35950 *nt, u8 scale_up)
187 {
188 u8 cmd_scaler[] = { MCS_PARAM_SCALER_FUNCTION, scale_up };
189
190 return mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_scaler,
191 ARRAY_SIZE(cmd_scaler));
192 }
193
194 /*
195 * nt35950_set_scale_mode - Resolution upscaling mode
196 * @nt: Main driver structure
197 * @mode: Scaler mode (MCS_DATA_COMPRESSION_*)
198 *
199 * Return: Number of transferred bytes or negative number on error
200 */
nt35950_set_scale_mode(struct nt35950 * nt,u8 mode)201 static int nt35950_set_scale_mode(struct nt35950 *nt, u8 mode)
202 {
203 u8 cmd_scaler[] = { MCS_PARAM_SCALEUP_MODE, mode };
204
205 return mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_scaler,
206 ARRAY_SIZE(cmd_scaler));
207 }
208
209 /*
210 * nt35950_inject_black_image - Display a completely black image
211 * @nt: Main driver structure
212 *
213 * After IC setup, the attached panel may show random data
214 * due to driveric behavior changes (resolution, compression,
215 * scaling, etc). This function, called after parameters setup,
216 * makes the driver ic to output a completely black image to
217 * the display.
218 * It makes sense to push a black image before sending the sleep-out
219 * and display-on commands.
220 *
221 * Return: Number of transferred bytes or negative number on error
222 */
nt35950_inject_black_image(struct nt35950 * nt)223 static int nt35950_inject_black_image(struct nt35950 *nt)
224 {
225 const u8 cmd0_black_img[] = { 0x6f, 0x01 };
226 const u8 cmd1_black_img[] = { 0xf3, 0x10 };
227 u8 cmd_test[] = { 0xff, 0xaa, 0x55, 0xa5, 0x80 };
228 int ret;
229
230 /* Enable test command */
231 ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_test, ARRAY_SIZE(cmd_test));
232 if (ret < 0)
233 return ret;
234
235 /* Send a black image */
236 ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd0_black_img,
237 ARRAY_SIZE(cmd0_black_img));
238 if (ret < 0)
239 return ret;
240 ret = mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd1_black_img,
241 ARRAY_SIZE(cmd1_black_img));
242 if (ret < 0)
243 return ret;
244
245 /* Disable test command */
246 cmd_test[ARRAY_SIZE(cmd_test) - 1] = 0x00;
247 return mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_test, ARRAY_SIZE(cmd_test));
248 }
249
250 /*
251 * nt35950_set_dispout - Set Display Output register parameters
252 * @nt: Main driver structure
253 *
254 * Return: Number of transferred bytes or negative number on error
255 */
nt35950_set_dispout(struct nt35950 * nt)256 static int nt35950_set_dispout(struct nt35950 *nt)
257 {
258 u8 cmd_dispout[] = { MCS_PARAM_DISP_OUTPUT_CTRL, 0x00 };
259 const struct nt35950_panel_mode *mode_data = nt->desc->mode_data;
260
261 if (mode_data[nt->cur_mode].is_video_mode)
262 cmd_dispout[1] |= MCS_DISP_OUT_VIDEO_MODE;
263 if (mode_data[nt->cur_mode].enable_sram)
264 cmd_dispout[1] |= MCS_DISP_OUT_SRAM_EN;
265
266 return mipi_dsi_dcs_write_buffer(nt->dsi[0], cmd_dispout,
267 ARRAY_SIZE(cmd_dispout));
268 }
269
nt35950_get_current_mode(struct nt35950 * nt)270 static int nt35950_get_current_mode(struct nt35950 *nt)
271 {
272 struct drm_connector *connector = nt->connector;
273 struct drm_crtc_state *crtc_state;
274 int i;
275
276 /* Return the default (first) mode if no info available yet */
277 if (!connector->state || !connector->state->crtc)
278 return 0;
279
280 crtc_state = connector->state->crtc->state;
281
282 for (i = 0; i < nt->desc->num_modes; i++) {
283 if (drm_mode_match(&crtc_state->mode,
284 &nt->desc->mode_data[i].mode,
285 DRM_MODE_MATCH_TIMINGS | DRM_MODE_MATCH_CLOCK))
286 return i;
287 }
288
289 return 0;
290 }
291
nt35950_on(struct nt35950 * nt)292 static int nt35950_on(struct nt35950 *nt)
293 {
294 const struct nt35950_panel_mode *mode_data = nt->desc->mode_data;
295 struct mipi_dsi_device *dsi = nt->dsi[0];
296 struct device *dev = &dsi->dev;
297 int ret;
298
299 nt->cur_mode = nt35950_get_current_mode(nt);
300 nt->dsi[0]->mode_flags |= MIPI_DSI_MODE_LPM;
301 nt->dsi[1]->mode_flags |= MIPI_DSI_MODE_LPM;
302
303 ret = nt35950_set_cmd2_page(nt, 0);
304 if (ret < 0)
305 return ret;
306
307 ret = nt35950_set_data_compression(nt, mode_data[nt->cur_mode].compression);
308 if (ret < 0)
309 return ret;
310
311 ret = nt35950_set_scale_mode(nt, mode_data[nt->cur_mode].scaler_mode);
312 if (ret < 0)
313 return ret;
314
315 ret = nt35950_set_scaler(nt, mode_data[nt->cur_mode].scaler_on);
316 if (ret < 0)
317 return ret;
318
319 ret = nt35950_set_dispout(nt);
320 if (ret < 0)
321 return ret;
322
323 ret = mipi_dsi_dcs_set_tear_on(dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
324 if (ret < 0) {
325 dev_err(dev, "Failed to set tear on: %d\n", ret);
326 return ret;
327 }
328
329 ret = mipi_dsi_dcs_set_tear_scanline(dsi, 0);
330 if (ret < 0) {
331 dev_err(dev, "Failed to set tear scanline: %d\n", ret);
332 return ret;
333 }
334
335 /* CMD2 Page 1 */
336 ret = nt35950_set_cmd2_page(nt, 1);
337 if (ret < 0)
338 return ret;
339
340 /* Unknown command */
341 dsi_dcs_write_seq(dsi, 0xd4, 0x88, 0x88);
342
343 /* CMD2 Page 7 */
344 ret = nt35950_set_cmd2_page(nt, 7);
345 if (ret < 0)
346 return ret;
347
348 /* Enable SubPixel Rendering */
349 dsi_dcs_write_seq(dsi, MCS_PARAM_SPR_EN, 0x01);
350
351 /* SPR Mode: YYG Rainbow-RGB */
352 dsi_dcs_write_seq(dsi, MCS_PARAM_SPR_MODE, MCS_SPR_MODE_YYG_RAINBOW_RGB);
353
354 /* CMD3 */
355 ret = nt35950_inject_black_image(nt);
356 if (ret < 0)
357 return ret;
358
359 ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
360 if (ret < 0)
361 return ret;
362 msleep(120);
363
364 ret = mipi_dsi_dcs_set_display_on(dsi);
365 if (ret < 0)
366 return ret;
367 msleep(120);
368
369 nt->dsi[0]->mode_flags &= ~MIPI_DSI_MODE_LPM;
370 nt->dsi[1]->mode_flags &= ~MIPI_DSI_MODE_LPM;
371
372 return 0;
373 }
374
nt35950_off(struct nt35950 * nt)375 static int nt35950_off(struct nt35950 *nt)
376 {
377 struct device *dev = &nt->dsi[0]->dev;
378 int ret;
379
380 ret = mipi_dsi_dcs_set_display_off(nt->dsi[0]);
381 if (ret < 0) {
382 dev_err(dev, "Failed to set display off: %d\n", ret);
383 goto set_lpm;
384 }
385 usleep_range(10000, 11000);
386
387 ret = mipi_dsi_dcs_enter_sleep_mode(nt->dsi[0]);
388 if (ret < 0) {
389 dev_err(dev, "Failed to enter sleep mode: %d\n", ret);
390 goto set_lpm;
391 }
392 msleep(150);
393
394 set_lpm:
395 nt->dsi[0]->mode_flags |= MIPI_DSI_MODE_LPM;
396 nt->dsi[1]->mode_flags |= MIPI_DSI_MODE_LPM;
397
398 return 0;
399 }
400
nt35950_sharp_init_vregs(struct nt35950 * nt,struct device * dev)401 static int nt35950_sharp_init_vregs(struct nt35950 *nt, struct device *dev)
402 {
403 int ret;
404
405 nt->vregs[0].supply = "vddio";
406 nt->vregs[1].supply = "avdd";
407 nt->vregs[2].supply = "avee";
408 nt->vregs[3].supply = "dvdd";
409 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(nt->vregs),
410 nt->vregs);
411 if (ret < 0)
412 return ret;
413
414 ret = regulator_is_supported_voltage(nt->vregs[0].consumer,
415 1750000, 1950000);
416 if (!ret)
417 return -EINVAL;
418 ret = regulator_is_supported_voltage(nt->vregs[1].consumer,
419 5200000, 5900000);
420 if (!ret)
421 return -EINVAL;
422 /* AVEE is negative: -5.90V to -5.20V */
423 ret = regulator_is_supported_voltage(nt->vregs[2].consumer,
424 5200000, 5900000);
425 if (!ret)
426 return -EINVAL;
427
428 ret = regulator_is_supported_voltage(nt->vregs[3].consumer,
429 1300000, 1400000);
430 if (!ret)
431 return -EINVAL;
432
433 return 0;
434 }
435
nt35950_prepare(struct drm_panel * panel)436 static int nt35950_prepare(struct drm_panel *panel)
437 {
438 struct nt35950 *nt = to_nt35950(panel);
439 struct device *dev = &nt->dsi[0]->dev;
440 int ret;
441
442 if (nt->prepared)
443 return 0;
444
445 ret = regulator_enable(nt->vregs[0].consumer);
446 if (ret)
447 return ret;
448 usleep_range(2000, 5000);
449
450 ret = regulator_enable(nt->vregs[3].consumer);
451 if (ret)
452 goto end;
453 usleep_range(15000, 18000);
454
455 ret = regulator_enable(nt->vregs[1].consumer);
456 if (ret)
457 goto end;
458
459 ret = regulator_enable(nt->vregs[2].consumer);
460 if (ret)
461 goto end;
462 usleep_range(12000, 13000);
463
464 nt35950_reset(nt);
465
466 ret = nt35950_on(nt);
467 if (ret < 0) {
468 dev_err(dev, "Failed to initialize panel: %d\n", ret);
469 goto end;
470 }
471 nt->prepared = true;
472
473 end:
474 if (ret < 0) {
475 regulator_bulk_disable(ARRAY_SIZE(nt->vregs), nt->vregs);
476 return ret;
477 }
478
479 return 0;
480 }
481
nt35950_unprepare(struct drm_panel * panel)482 static int nt35950_unprepare(struct drm_panel *panel)
483 {
484 struct nt35950 *nt = to_nt35950(panel);
485 struct device *dev = &nt->dsi[0]->dev;
486 int ret;
487
488 if (!nt->prepared)
489 return 0;
490
491 ret = nt35950_off(nt);
492 if (ret < 0)
493 dev_err(dev, "Failed to deinitialize panel: %d\n", ret);
494
495 gpiod_set_value_cansleep(nt->reset_gpio, 0);
496 regulator_bulk_disable(ARRAY_SIZE(nt->vregs), nt->vregs);
497
498 nt->prepared = false;
499 return 0;
500 }
501
nt35950_get_modes(struct drm_panel * panel,struct drm_connector * connector)502 static int nt35950_get_modes(struct drm_panel *panel,
503 struct drm_connector *connector)
504 {
505 struct nt35950 *nt = to_nt35950(panel);
506 int i;
507
508 for (i = 0; i < nt->desc->num_modes; i++) {
509 struct drm_display_mode *mode;
510
511 mode = drm_mode_duplicate(connector->dev,
512 &nt->desc->mode_data[i].mode);
513 if (!mode)
514 return -ENOMEM;
515
516 drm_mode_set_name(mode);
517
518 mode->type |= DRM_MODE_TYPE_DRIVER;
519 if (nt->desc->num_modes == 1)
520 mode->type |= DRM_MODE_TYPE_PREFERRED;
521
522 drm_mode_probed_add(connector, mode);
523 }
524
525 connector->display_info.bpc = 8;
526 connector->display_info.height_mm = nt->desc->mode_data[0].mode.height_mm;
527 connector->display_info.width_mm = nt->desc->mode_data[0].mode.width_mm;
528 nt->connector = connector;
529
530 return nt->desc->num_modes;
531 }
532
533 static const struct drm_panel_funcs nt35950_panel_funcs = {
534 .prepare = nt35950_prepare,
535 .unprepare = nt35950_unprepare,
536 .get_modes = nt35950_get_modes,
537 };
538
nt35950_probe(struct mipi_dsi_device * dsi)539 static int nt35950_probe(struct mipi_dsi_device *dsi)
540 {
541 struct device *dev = &dsi->dev;
542 struct device_node *dsi_r;
543 struct mipi_dsi_host *dsi_r_host;
544 struct nt35950 *nt;
545 const struct mipi_dsi_device_info *info;
546 int i, num_dsis = 1, ret;
547
548 nt = devm_kzalloc(dev, sizeof(*nt), GFP_KERNEL);
549 if (!nt)
550 return -ENOMEM;
551
552 ret = nt35950_sharp_init_vregs(nt, dev);
553 if (ret)
554 return dev_err_probe(dev, ret, "Regulator init failure.\n");
555
556 nt->desc = of_device_get_match_data(dev);
557 if (!nt->desc)
558 return -ENODEV;
559
560 nt->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_ASIS);
561 if (IS_ERR(nt->reset_gpio)) {
562 return dev_err_probe(dev, PTR_ERR(nt->reset_gpio),
563 "Failed to get reset gpio\n");
564 }
565
566 /* If the panel is connected on two DSIs then DSI0 left, DSI1 right */
567 if (nt->desc->is_dual_dsi) {
568 info = &nt->desc->dsi_info;
569 dsi_r = of_graph_get_remote_node(dsi->dev.of_node, 1, -1);
570 if (!dsi_r) {
571 dev_err(dev, "Cannot get secondary DSI node.\n");
572 return -ENODEV;
573 }
574 dsi_r_host = of_find_mipi_dsi_host_by_node(dsi_r);
575 of_node_put(dsi_r);
576 if (!dsi_r_host) {
577 dev_err(dev, "Cannot get secondary DSI host\n");
578 return -EPROBE_DEFER;
579 }
580
581 nt->dsi[1] = mipi_dsi_device_register_full(dsi_r_host, info);
582 if (!nt->dsi[1]) {
583 dev_err(dev, "Cannot get secondary DSI node\n");
584 return -ENODEV;
585 }
586 num_dsis++;
587 }
588
589 nt->dsi[0] = dsi;
590 mipi_dsi_set_drvdata(dsi, nt);
591
592 drm_panel_init(&nt->panel, dev, &nt35950_panel_funcs,
593 DRM_MODE_CONNECTOR_DSI);
594
595 ret = drm_panel_of_backlight(&nt->panel);
596 if (ret)
597 return dev_err_probe(dev, ret, "Failed to get backlight\n");
598
599 drm_panel_add(&nt->panel);
600
601 for (i = 0; i < num_dsis; i++) {
602 nt->dsi[i]->lanes = nt->desc->num_lanes;
603 nt->dsi[i]->format = MIPI_DSI_FMT_RGB888;
604
605 nt->dsi[i]->mode_flags = MIPI_DSI_CLOCK_NON_CONTINUOUS |
606 MIPI_DSI_MODE_LPM;
607
608 if (nt->desc->mode_data[0].is_video_mode)
609 nt->dsi[i]->mode_flags |= MIPI_DSI_MODE_VIDEO;
610
611 ret = mipi_dsi_attach(nt->dsi[i]);
612 if (ret < 0) {
613 return dev_err_probe(dev, ret,
614 "Cannot attach to DSI%d host.\n", i);
615 }
616 }
617
618 /* Make sure to set RESX LOW before starting the power-on sequence */
619 gpiod_set_value_cansleep(nt->reset_gpio, 0);
620 return 0;
621 }
622
nt35950_remove(struct mipi_dsi_device * dsi)623 static int nt35950_remove(struct mipi_dsi_device *dsi)
624 {
625 struct nt35950 *nt = mipi_dsi_get_drvdata(dsi);
626 int ret;
627
628 ret = mipi_dsi_detach(nt->dsi[0]);
629 if (ret < 0)
630 dev_err(&dsi->dev,
631 "Failed to detach from DSI0 host: %d\n", ret);
632
633 if (nt->dsi[1]) {
634 ret = mipi_dsi_detach(nt->dsi[1]);
635 if (ret < 0)
636 dev_err(&dsi->dev,
637 "Failed to detach from DSI1 host: %d\n", ret);
638 mipi_dsi_device_unregister(nt->dsi[1]);
639 }
640
641 drm_panel_remove(&nt->panel);
642
643 return 0;
644 }
645
646 static const struct nt35950_panel_mode sharp_ls055d1sx04_modes[] = {
647 {
648 /* 1920x1080 60Hz no compression */
649 .mode = {
650 .clock = 214537,
651 .hdisplay = 1080,
652 .hsync_start = 1080 + 400,
653 .hsync_end = 1080 + 400 + 40,
654 .htotal = 1080 + 400 + 40 + 300,
655 .vdisplay = 1920,
656 .vsync_start = 1920 + 12,
657 .vsync_end = 1920 + 12 + 2,
658 .vtotal = 1920 + 12 + 2 + 10,
659 .width_mm = 68,
660 .height_mm = 121,
661 },
662 .compression = MCS_DATA_COMPRESSION_NONE,
663 .enable_sram = true,
664 .is_video_mode = false,
665 .scaler_on = 1,
666 .scaler_mode = MCS_SCALEUP_DUPLICATE,
667 },
668 /* TODO: Add 2160x3840 60Hz when DSC is supported */
669 };
670
671 static const struct nt35950_panel_desc sharp_ls055d1sx04 = {
672 .model_name = "Sharp LS055D1SX04",
673 .dsi_info = {
674 .type = "LS055D1SX04",
675 .channel = 0,
676 .node = NULL,
677 },
678 .mode_data = sharp_ls055d1sx04_modes,
679 .num_modes = ARRAY_SIZE(sharp_ls055d1sx04_modes),
680 .is_dual_dsi = true,
681 .num_lanes = 4,
682 };
683
684 static const struct of_device_id nt35950_of_match[] = {
685 { .compatible = "sharp,ls055d1sx04", .data = &sharp_ls055d1sx04 },
686 { }
687 };
688 MODULE_DEVICE_TABLE(of, nt35950_of_match);
689
690 static struct mipi_dsi_driver nt35950_driver = {
691 .probe = nt35950_probe,
692 .remove = nt35950_remove,
693 .driver = {
694 .name = "panel-novatek-nt35950",
695 .of_match_table = nt35950_of_match,
696 },
697 };
698 module_mipi_dsi_driver(nt35950_driver);
699
700 MODULE_AUTHOR("AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>");
701 MODULE_DESCRIPTION("Novatek NT35950 DriverIC panels driver");
702 MODULE_LICENSE("GPL v2");
703