1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2019, Huaqin Telecom Technology Co., Ltd
4 *
5 * Author: Jerry Han <jerry.han.hq@gmail.com>
6 *
7 */
8
9 #include <linux/delay.h>
10 #include <linux/kernel.h>
11 #include <linux/module.h>
12 #include <linux/of.h>
13
14 #include <linux/gpio/consumer.h>
15 #include <linux/regulator/consumer.h>
16
17 #include <drm/drm_device.h>
18 #include <drm/drm_mipi_dsi.h>
19 #include <drm/drm_modes.h>
20 #include <drm/drm_panel.h>
21
22 #include <video/mipi_display.h>
23
24 struct panel_cmd {
25 char cmd;
26 char data;
27 };
28
29 struct panel_desc {
30 const struct drm_display_mode *display_mode;
31 unsigned int bpc;
32 unsigned int width_mm;
33 unsigned int height_mm;
34
35 unsigned long mode_flags;
36 enum mipi_dsi_pixel_format format;
37 unsigned int lanes;
38 const struct panel_cmd *on_cmds;
39 unsigned int on_cmds_num;
40 };
41
42 struct panel_info {
43 struct drm_panel base;
44 struct mipi_dsi_device *link;
45 const struct panel_desc *desc;
46
47 struct gpio_desc *enable_gpio;
48 struct gpio_desc *pp33_gpio;
49 struct gpio_desc *pp18_gpio;
50
51 bool prepared;
52 bool enabled;
53 };
54
to_panel_info(struct drm_panel * panel)55 static inline struct panel_info *to_panel_info(struct drm_panel *panel)
56 {
57 return container_of(panel, struct panel_info, base);
58 }
59
disable_gpios(struct panel_info * pinfo)60 static void disable_gpios(struct panel_info *pinfo)
61 {
62 gpiod_set_value(pinfo->enable_gpio, 0);
63 gpiod_set_value(pinfo->pp33_gpio, 0);
64 gpiod_set_value(pinfo->pp18_gpio, 0);
65 }
66
send_mipi_cmds(struct drm_panel * panel,const struct panel_cmd * cmds)67 static int send_mipi_cmds(struct drm_panel *panel, const struct panel_cmd *cmds)
68 {
69 struct panel_info *pinfo = to_panel_info(panel);
70 unsigned int i = 0;
71 int err;
72
73 for (i = 0; i < pinfo->desc->on_cmds_num; i++) {
74 err = mipi_dsi_dcs_write_buffer(pinfo->link, &cmds[i],
75 sizeof(struct panel_cmd));
76
77 if (err < 0)
78 return err;
79 }
80
81 return 0;
82 }
83
boe_panel_disable(struct drm_panel * panel)84 static int boe_panel_disable(struct drm_panel *panel)
85 {
86 struct panel_info *pinfo = to_panel_info(panel);
87 int err;
88
89 if (!pinfo->enabled)
90 return 0;
91
92 err = mipi_dsi_dcs_set_display_off(pinfo->link);
93 if (err < 0) {
94 dev_err(panel->dev, "failed to set display off: %d\n", err);
95 return err;
96 }
97
98 pinfo->enabled = false;
99
100 return 0;
101 }
102
boe_panel_unprepare(struct drm_panel * panel)103 static int boe_panel_unprepare(struct drm_panel *panel)
104 {
105 struct panel_info *pinfo = to_panel_info(panel);
106 int err;
107
108 if (!pinfo->prepared)
109 return 0;
110
111 err = mipi_dsi_dcs_set_display_off(pinfo->link);
112 if (err < 0)
113 dev_err(panel->dev, "failed to set display off: %d\n", err);
114
115 err = mipi_dsi_dcs_enter_sleep_mode(pinfo->link);
116 if (err < 0)
117 dev_err(panel->dev, "failed to enter sleep mode: %d\n", err);
118
119 /* sleep_mode_delay: 1ms - 2ms */
120 usleep_range(1000, 2000);
121
122 disable_gpios(pinfo);
123
124 pinfo->prepared = false;
125
126 return 0;
127 }
128
boe_panel_prepare(struct drm_panel * panel)129 static int boe_panel_prepare(struct drm_panel *panel)
130 {
131 struct panel_info *pinfo = to_panel_info(panel);
132 int err;
133
134 if (pinfo->prepared)
135 return 0;
136
137 gpiod_set_value(pinfo->pp18_gpio, 1);
138 /* T1: 5ms - 6ms */
139 usleep_range(5000, 6000);
140 gpiod_set_value(pinfo->pp33_gpio, 1);
141
142 /* reset sequence */
143 /* T2: 14ms - 15ms */
144 usleep_range(14000, 15000);
145 gpiod_set_value(pinfo->enable_gpio, 1);
146
147 /* T3: 1ms - 2ms */
148 usleep_range(1000, 2000);
149 gpiod_set_value(pinfo->enable_gpio, 0);
150
151 /* T4: 1ms - 2ms */
152 usleep_range(1000, 2000);
153 gpiod_set_value(pinfo->enable_gpio, 1);
154
155 /* T5: 5ms - 6ms */
156 usleep_range(5000, 6000);
157
158 /* send init code */
159 err = send_mipi_cmds(panel, pinfo->desc->on_cmds);
160 if (err < 0) {
161 dev_err(panel->dev, "failed to send DCS Init Code: %d\n", err);
162 goto poweroff;
163 }
164
165 err = mipi_dsi_dcs_exit_sleep_mode(pinfo->link);
166 if (err < 0) {
167 dev_err(panel->dev, "failed to exit sleep mode: %d\n", err);
168 goto poweroff;
169 }
170
171 /* T6: 120ms - 121ms */
172 usleep_range(120000, 121000);
173
174 err = mipi_dsi_dcs_set_display_on(pinfo->link);
175 if (err < 0) {
176 dev_err(panel->dev, "failed to set display on: %d\n", err);
177 goto poweroff;
178 }
179
180 /* T7: 20ms - 21ms */
181 usleep_range(20000, 21000);
182
183 pinfo->prepared = true;
184
185 return 0;
186
187 poweroff:
188 disable_gpios(pinfo);
189 return err;
190 }
191
boe_panel_enable(struct drm_panel * panel)192 static int boe_panel_enable(struct drm_panel *panel)
193 {
194 struct panel_info *pinfo = to_panel_info(panel);
195 int ret;
196
197 if (pinfo->enabled)
198 return 0;
199
200 usleep_range(120000, 121000);
201
202 ret = mipi_dsi_dcs_set_display_on(pinfo->link);
203 if (ret < 0) {
204 dev_err(panel->dev, "failed to set display on: %d\n", ret);
205 return ret;
206 }
207
208 pinfo->enabled = true;
209
210 return 0;
211 }
212
boe_panel_get_modes(struct drm_panel * panel,struct drm_connector * connector)213 static int boe_panel_get_modes(struct drm_panel *panel,
214 struct drm_connector *connector)
215 {
216 struct panel_info *pinfo = to_panel_info(panel);
217 const struct drm_display_mode *m = pinfo->desc->display_mode;
218 struct drm_display_mode *mode;
219
220 mode = drm_mode_duplicate(connector->dev, m);
221 if (!mode) {
222 dev_err(pinfo->base.dev, "failed to add mode %ux%u@%u\n",
223 m->hdisplay, m->vdisplay, drm_mode_vrefresh(m));
224 return -ENOMEM;
225 }
226
227 drm_mode_set_name(mode);
228
229 drm_mode_probed_add(connector, mode);
230
231 connector->display_info.width_mm = pinfo->desc->width_mm;
232 connector->display_info.height_mm = pinfo->desc->height_mm;
233 connector->display_info.bpc = pinfo->desc->bpc;
234
235 return 1;
236 }
237
238 static const struct drm_panel_funcs panel_funcs = {
239 .disable = boe_panel_disable,
240 .unprepare = boe_panel_unprepare,
241 .prepare = boe_panel_prepare,
242 .enable = boe_panel_enable,
243 .get_modes = boe_panel_get_modes,
244 };
245
246 static const struct drm_display_mode default_display_mode = {
247 .clock = 159420,
248 .hdisplay = 1200,
249 .hsync_start = 1200 + 80,
250 .hsync_end = 1200 + 80 + 60,
251 .htotal = 1200 + 80 + 60 + 24,
252 .vdisplay = 1920,
253 .vsync_start = 1920 + 10,
254 .vsync_end = 1920 + 10 + 14,
255 .vtotal = 1920 + 10 + 14 + 4,
256 };
257
258 /* 8 inch */
259 static const struct panel_cmd boe_himax8279d8p_on_cmds[] = {
260 { 0xB0, 0x05 },
261 { 0xB1, 0xE5 },
262 { 0xB3, 0x52 },
263 { 0xC0, 0x00 },
264 { 0xC2, 0x57 },
265 { 0xD9, 0x85 },
266 { 0xB0, 0x01 },
267 { 0xC8, 0x00 },
268 { 0xC9, 0x00 },
269 { 0xCC, 0x26 },
270 { 0xCD, 0x26 },
271 { 0xDC, 0x00 },
272 { 0xDD, 0x00 },
273 { 0xE0, 0x26 },
274 { 0xE1, 0x26 },
275 { 0xB0, 0x03 },
276 { 0xC3, 0x2A },
277 { 0xE7, 0x2A },
278 { 0xC5, 0x2A },
279 { 0xDE, 0x2A },
280 { 0xBC, 0x02 },
281 { 0xCB, 0x02 },
282 { 0xB0, 0x00 },
283 { 0xB6, 0x03 },
284 { 0xBA, 0x8B },
285 { 0xBF, 0x15 },
286 { 0xC0, 0x18 },
287 { 0xC2, 0x14 },
288 { 0xC3, 0x02 },
289 { 0xC4, 0x14 },
290 { 0xC5, 0x02 },
291 { 0xCC, 0x0A },
292 { 0xB0, 0x06 },
293 { 0xC0, 0xA5 },
294 { 0xD5, 0x20 },
295 { 0xC0, 0x00 },
296 { 0xB0, 0x02 },
297 { 0xC0, 0x00 },
298 { 0xC1, 0x02 },
299 { 0xC2, 0x06 },
300 { 0xC3, 0x16 },
301 { 0xC4, 0x0E },
302 { 0xC5, 0x18 },
303 { 0xC6, 0x26 },
304 { 0xC7, 0x32 },
305 { 0xC8, 0x3F },
306 { 0xC9, 0x3F },
307 { 0xCA, 0x3F },
308 { 0xCB, 0x3F },
309 { 0xCC, 0x3D },
310 { 0xCD, 0x2F },
311 { 0xCE, 0x2F },
312 { 0xCF, 0x2F },
313 { 0xD0, 0x07 },
314 { 0xD2, 0x00 },
315 { 0xD3, 0x02 },
316 { 0xD4, 0x06 },
317 { 0xD5, 0x12 },
318 { 0xD6, 0x0A },
319 { 0xD7, 0x14 },
320 { 0xD8, 0x22 },
321 { 0xD9, 0x2E },
322 { 0xDA, 0x3D },
323 { 0xDB, 0x3F },
324 { 0xDC, 0x3F },
325 { 0xDD, 0x3F },
326 { 0xDE, 0x3D },
327 { 0xDF, 0x2F },
328 { 0xE0, 0x2F },
329 { 0xE1, 0x2F },
330 { 0xE2, 0x07 },
331 { 0xB0, 0x07 },
332 { 0xB1, 0x18 },
333 { 0xB2, 0x19 },
334 { 0xB3, 0x2E },
335 { 0xB4, 0x52 },
336 { 0xB5, 0x72 },
337 { 0xB6, 0x8C },
338 { 0xB7, 0xBD },
339 { 0xB8, 0xEB },
340 { 0xB9, 0x47 },
341 { 0xBA, 0x96 },
342 { 0xBB, 0x1E },
343 { 0xBC, 0x90 },
344 { 0xBD, 0x93 },
345 { 0xBE, 0xFA },
346 { 0xBF, 0x56 },
347 { 0xC0, 0x8C },
348 { 0xC1, 0xB7 },
349 { 0xC2, 0xCC },
350 { 0xC3, 0xDF },
351 { 0xC4, 0xE8 },
352 { 0xC5, 0xF0 },
353 { 0xC6, 0xF8 },
354 { 0xC7, 0xFA },
355 { 0xC8, 0xFC },
356 { 0xC9, 0x00 },
357 { 0xCA, 0x00 },
358 { 0xCB, 0x5A },
359 { 0xCC, 0xAF },
360 { 0xCD, 0xFF },
361 { 0xCE, 0xFF },
362 { 0xB0, 0x08 },
363 { 0xB1, 0x04 },
364 { 0xB2, 0x15 },
365 { 0xB3, 0x2D },
366 { 0xB4, 0x51 },
367 { 0xB5, 0x72 },
368 { 0xB6, 0x8D },
369 { 0xB7, 0xBE },
370 { 0xB8, 0xED },
371 { 0xB9, 0x4A },
372 { 0xBA, 0x9A },
373 { 0xBB, 0x23 },
374 { 0xBC, 0x95 },
375 { 0xBD, 0x98 },
376 { 0xBE, 0xFF },
377 { 0xBF, 0x59 },
378 { 0xC0, 0x8E },
379 { 0xC1, 0xB9 },
380 { 0xC2, 0xCD },
381 { 0xC3, 0xDF },
382 { 0xC4, 0xE8 },
383 { 0xC5, 0xF0 },
384 { 0xC6, 0xF8 },
385 { 0xC7, 0xFA },
386 { 0xC8, 0xFC },
387 { 0xC9, 0x00 },
388 { 0xCA, 0x00 },
389 { 0xCB, 0x5A },
390 { 0xCC, 0xAF },
391 { 0xCD, 0xFF },
392 { 0xCE, 0xFF },
393 { 0xB0, 0x09 },
394 { 0xB1, 0x04 },
395 { 0xB2, 0x2C },
396 { 0xB3, 0x36 },
397 { 0xB4, 0x53 },
398 { 0xB5, 0x73 },
399 { 0xB6, 0x8E },
400 { 0xB7, 0xC0 },
401 { 0xB8, 0xEF },
402 { 0xB9, 0x4C },
403 { 0xBA, 0x9D },
404 { 0xBB, 0x25 },
405 { 0xBC, 0x96 },
406 { 0xBD, 0x9A },
407 { 0xBE, 0x01 },
408 { 0xBF, 0x59 },
409 { 0xC0, 0x8E },
410 { 0xC1, 0xB9 },
411 { 0xC2, 0xCD },
412 { 0xC3, 0xDF },
413 { 0xC4, 0xE8 },
414 { 0xC5, 0xF0 },
415 { 0xC6, 0xF8 },
416 { 0xC7, 0xFA },
417 { 0xC8, 0xFC },
418 { 0xC9, 0x00 },
419 { 0xCA, 0x00 },
420 { 0xCB, 0x5A },
421 { 0xCC, 0xBF },
422 { 0xCD, 0xFF },
423 { 0xCE, 0xFF },
424 { 0xB0, 0x0A },
425 { 0xB1, 0x18 },
426 { 0xB2, 0x19 },
427 { 0xB3, 0x2E },
428 { 0xB4, 0x52 },
429 { 0xB5, 0x72 },
430 { 0xB6, 0x8C },
431 { 0xB7, 0xBD },
432 { 0xB8, 0xEB },
433 { 0xB9, 0x47 },
434 { 0xBA, 0x96 },
435 { 0xBB, 0x1E },
436 { 0xBC, 0x90 },
437 { 0xBD, 0x93 },
438 { 0xBE, 0xFA },
439 { 0xBF, 0x56 },
440 { 0xC0, 0x8C },
441 { 0xC1, 0xB7 },
442 { 0xC2, 0xCC },
443 { 0xC3, 0xDF },
444 { 0xC4, 0xE8 },
445 { 0xC5, 0xF0 },
446 { 0xC6, 0xF8 },
447 { 0xC7, 0xFA },
448 { 0xC8, 0xFC },
449 { 0xC9, 0x00 },
450 { 0xCA, 0x00 },
451 { 0xCB, 0x5A },
452 { 0xCC, 0xAF },
453 { 0xCD, 0xFF },
454 { 0xCE, 0xFF },
455 { 0xB0, 0x0B },
456 { 0xB1, 0x04 },
457 { 0xB2, 0x15 },
458 { 0xB3, 0x2D },
459 { 0xB4, 0x51 },
460 { 0xB5, 0x72 },
461 { 0xB6, 0x8D },
462 { 0xB7, 0xBE },
463 { 0xB8, 0xED },
464 { 0xB9, 0x4A },
465 { 0xBA, 0x9A },
466 { 0xBB, 0x23 },
467 { 0xBC, 0x95 },
468 { 0xBD, 0x98 },
469 { 0xBE, 0xFF },
470 { 0xBF, 0x59 },
471 { 0xC0, 0x8E },
472 { 0xC1, 0xB9 },
473 { 0xC2, 0xCD },
474 { 0xC3, 0xDF },
475 { 0xC4, 0xE8 },
476 { 0xC5, 0xF0 },
477 { 0xC6, 0xF8 },
478 { 0xC7, 0xFA },
479 { 0xC8, 0xFC },
480 { 0xC9, 0x00 },
481 { 0xCA, 0x00 },
482 { 0xCB, 0x5A },
483 { 0xCC, 0xAF },
484 { 0xCD, 0xFF },
485 { 0xCE, 0xFF },
486 { 0xB0, 0x0C },
487 { 0xB1, 0x04 },
488 { 0xB2, 0x2C },
489 { 0xB3, 0x36 },
490 { 0xB4, 0x53 },
491 { 0xB5, 0x73 },
492 { 0xB6, 0x8E },
493 { 0xB7, 0xC0 },
494 { 0xB8, 0xEF },
495 { 0xB9, 0x4C },
496 { 0xBA, 0x9D },
497 { 0xBB, 0x25 },
498 { 0xBC, 0x96 },
499 { 0xBD, 0x9A },
500 { 0xBE, 0x01 },
501 { 0xBF, 0x59 },
502 { 0xC0, 0x8E },
503 { 0xC1, 0xB9 },
504 { 0xC2, 0xCD },
505 { 0xC3, 0xDF },
506 { 0xC4, 0xE8 },
507 { 0xC5, 0xF0 },
508 { 0xC6, 0xF8 },
509 { 0xC7, 0xFA },
510 { 0xC8, 0xFC },
511 { 0xC9, 0x00 },
512 { 0xCA, 0x00 },
513 { 0xCB, 0x5A },
514 { 0xCC, 0xBF },
515 { 0xCD, 0xFF },
516 { 0xCE, 0xFF },
517 { 0xB0, 0x04 },
518 { 0xB5, 0x02 },
519 { 0xB6, 0x01 },
520 };
521
522 static const struct panel_desc boe_himax8279d8p_panel_desc = {
523 .display_mode = &default_display_mode,
524 .bpc = 8,
525 .width_mm = 107,
526 .height_mm = 172,
527 .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
528 MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM,
529 .format = MIPI_DSI_FMT_RGB888,
530 .lanes = 4,
531 .on_cmds = boe_himax8279d8p_on_cmds,
532 .on_cmds_num = 260,
533 };
534
535 /* 10 inch */
536 static const struct panel_cmd boe_himax8279d10p_on_cmds[] = {
537 { 0xB0, 0x05 },
538 { 0xB1, 0xE5 },
539 { 0xB3, 0x52 },
540 { 0xB0, 0x00 },
541 { 0xB6, 0x03 },
542 { 0xBA, 0x8B },
543 { 0xBF, 0x1A },
544 { 0xC0, 0x0F },
545 { 0xC2, 0x0C },
546 { 0xC3, 0x02 },
547 { 0xC4, 0x0C },
548 { 0xC5, 0x02 },
549 { 0xB0, 0x01 },
550 { 0xE0, 0x26 },
551 { 0xE1, 0x26 },
552 { 0xDC, 0x00 },
553 { 0xDD, 0x00 },
554 { 0xCC, 0x26 },
555 { 0xCD, 0x26 },
556 { 0xC8, 0x00 },
557 { 0xC9, 0x00 },
558 { 0xD2, 0x03 },
559 { 0xD3, 0x03 },
560 { 0xE6, 0x04 },
561 { 0xE7, 0x04 },
562 { 0xC4, 0x09 },
563 { 0xC5, 0x09 },
564 { 0xD8, 0x0A },
565 { 0xD9, 0x0A },
566 { 0xC2, 0x0B },
567 { 0xC3, 0x0B },
568 { 0xD6, 0x0C },
569 { 0xD7, 0x0C },
570 { 0xC0, 0x05 },
571 { 0xC1, 0x05 },
572 { 0xD4, 0x06 },
573 { 0xD5, 0x06 },
574 { 0xCA, 0x07 },
575 { 0xCB, 0x07 },
576 { 0xDE, 0x08 },
577 { 0xDF, 0x08 },
578 { 0xB0, 0x02 },
579 { 0xC0, 0x00 },
580 { 0xC1, 0x0D },
581 { 0xC2, 0x17 },
582 { 0xC3, 0x26 },
583 { 0xC4, 0x31 },
584 { 0xC5, 0x1C },
585 { 0xC6, 0x2C },
586 { 0xC7, 0x33 },
587 { 0xC8, 0x31 },
588 { 0xC9, 0x37 },
589 { 0xCA, 0x37 },
590 { 0xCB, 0x37 },
591 { 0xCC, 0x39 },
592 { 0xCD, 0x2E },
593 { 0xCE, 0x2F },
594 { 0xCF, 0x2F },
595 { 0xD0, 0x07 },
596 { 0xD2, 0x00 },
597 { 0xD3, 0x0D },
598 { 0xD4, 0x17 },
599 { 0xD5, 0x26 },
600 { 0xD6, 0x31 },
601 { 0xD7, 0x3F },
602 { 0xD8, 0x3F },
603 { 0xD9, 0x3F },
604 { 0xDA, 0x3F },
605 { 0xDB, 0x37 },
606 { 0xDC, 0x37 },
607 { 0xDD, 0x37 },
608 { 0xDE, 0x39 },
609 { 0xDF, 0x2E },
610 { 0xE0, 0x2F },
611 { 0xE1, 0x2F },
612 { 0xE2, 0x07 },
613 { 0xB0, 0x03 },
614 { 0xC8, 0x0B },
615 { 0xC9, 0x07 },
616 { 0xC3, 0x00 },
617 { 0xE7, 0x00 },
618 { 0xC5, 0x2A },
619 { 0xDE, 0x2A },
620 { 0xCA, 0x43 },
621 { 0xC9, 0x07 },
622 { 0xE4, 0xC0 },
623 { 0xE5, 0x0D },
624 { 0xCB, 0x01 },
625 { 0xBC, 0x01 },
626 { 0xB0, 0x06 },
627 { 0xB8, 0xA5 },
628 { 0xC0, 0xA5 },
629 { 0xC7, 0x0F },
630 { 0xD5, 0x32 },
631 { 0xB8, 0x00 },
632 { 0xC0, 0x00 },
633 { 0xBC, 0x00 },
634 { 0xB0, 0x07 },
635 { 0xB1, 0x00 },
636 { 0xB2, 0x05 },
637 { 0xB3, 0x10 },
638 { 0xB4, 0x22 },
639 { 0xB5, 0x36 },
640 { 0xB6, 0x4A },
641 { 0xB7, 0x6C },
642 { 0xB8, 0x9A },
643 { 0xB9, 0xD7 },
644 { 0xBA, 0x17 },
645 { 0xBB, 0x92 },
646 { 0xBC, 0x15 },
647 { 0xBD, 0x18 },
648 { 0xBE, 0x8C },
649 { 0xBF, 0x00 },
650 { 0xC0, 0x3A },
651 { 0xC1, 0x72 },
652 { 0xC2, 0x8C },
653 { 0xC3, 0xA5 },
654 { 0xC4, 0xB1 },
655 { 0xC5, 0xBE },
656 { 0xC6, 0xCA },
657 { 0xC7, 0xD1 },
658 { 0xC8, 0xD4 },
659 { 0xC9, 0x00 },
660 { 0xCA, 0x00 },
661 { 0xCB, 0x16 },
662 { 0xCC, 0xAF },
663 { 0xCD, 0xFF },
664 { 0xCE, 0xFF },
665 { 0xB0, 0x08 },
666 { 0xB1, 0x04 },
667 { 0xB2, 0x05 },
668 { 0xB3, 0x11 },
669 { 0xB4, 0x24 },
670 { 0xB5, 0x39 },
671 { 0xB6, 0x4E },
672 { 0xB7, 0x72 },
673 { 0xB8, 0xA3 },
674 { 0xB9, 0xE1 },
675 { 0xBA, 0x25 },
676 { 0xBB, 0xA8 },
677 { 0xBC, 0x2E },
678 { 0xBD, 0x32 },
679 { 0xBE, 0xAD },
680 { 0xBF, 0x28 },
681 { 0xC0, 0x63 },
682 { 0xC1, 0x9B },
683 { 0xC2, 0xB5 },
684 { 0xC3, 0xCF },
685 { 0xC4, 0xDB },
686 { 0xC5, 0xE8 },
687 { 0xC6, 0xF5 },
688 { 0xC7, 0xFA },
689 { 0xC8, 0xFC },
690 { 0xC9, 0x00 },
691 { 0xCA, 0x00 },
692 { 0xCB, 0x16 },
693 { 0xCC, 0xAF },
694 { 0xCD, 0xFF },
695 { 0xCE, 0xFF },
696 { 0xB0, 0x09 },
697 { 0xB1, 0x04 },
698 { 0xB2, 0x04 },
699 { 0xB3, 0x0F },
700 { 0xB4, 0x22 },
701 { 0xB5, 0x37 },
702 { 0xB6, 0x4D },
703 { 0xB7, 0x71 },
704 { 0xB8, 0xA2 },
705 { 0xB9, 0xE1 },
706 { 0xBA, 0x26 },
707 { 0xBB, 0xA9 },
708 { 0xBC, 0x2F },
709 { 0xBD, 0x33 },
710 { 0xBE, 0xAC },
711 { 0xBF, 0x24 },
712 { 0xC0, 0x5D },
713 { 0xC1, 0x94 },
714 { 0xC2, 0xAC },
715 { 0xC3, 0xC5 },
716 { 0xC4, 0xD1 },
717 { 0xC5, 0xDC },
718 { 0xC6, 0xE8 },
719 { 0xC7, 0xED },
720 { 0xC8, 0xF0 },
721 { 0xC9, 0x00 },
722 { 0xCA, 0x00 },
723 { 0xCB, 0x16 },
724 { 0xCC, 0xAF },
725 { 0xCD, 0xFF },
726 { 0xCE, 0xFF },
727 { 0xB0, 0x0A },
728 { 0xB1, 0x00 },
729 { 0xB2, 0x05 },
730 { 0xB3, 0x10 },
731 { 0xB4, 0x22 },
732 { 0xB5, 0x36 },
733 { 0xB6, 0x4A },
734 { 0xB7, 0x6C },
735 { 0xB8, 0x9A },
736 { 0xB9, 0xD7 },
737 { 0xBA, 0x17 },
738 { 0xBB, 0x92 },
739 { 0xBC, 0x15 },
740 { 0xBD, 0x18 },
741 { 0xBE, 0x8C },
742 { 0xBF, 0x00 },
743 { 0xC0, 0x3A },
744 { 0xC1, 0x72 },
745 { 0xC2, 0x8C },
746 { 0xC3, 0xA5 },
747 { 0xC4, 0xB1 },
748 { 0xC5, 0xBE },
749 { 0xC6, 0xCA },
750 { 0xC7, 0xD1 },
751 { 0xC8, 0xD4 },
752 { 0xC9, 0x00 },
753 { 0xCA, 0x00 },
754 { 0xCB, 0x16 },
755 { 0xCC, 0xAF },
756 { 0xCD, 0xFF },
757 { 0xCE, 0xFF },
758 { 0xB0, 0x0B },
759 { 0xB1, 0x04 },
760 { 0xB2, 0x05 },
761 { 0xB3, 0x11 },
762 { 0xB4, 0x24 },
763 { 0xB5, 0x39 },
764 { 0xB6, 0x4E },
765 { 0xB7, 0x72 },
766 { 0xB8, 0xA3 },
767 { 0xB9, 0xE1 },
768 { 0xBA, 0x25 },
769 { 0xBB, 0xA8 },
770 { 0xBC, 0x2E },
771 { 0xBD, 0x32 },
772 { 0xBE, 0xAD },
773 { 0xBF, 0x28 },
774 { 0xC0, 0x63 },
775 { 0xC1, 0x9B },
776 { 0xC2, 0xB5 },
777 { 0xC3, 0xCF },
778 { 0xC4, 0xDB },
779 { 0xC5, 0xE8 },
780 { 0xC6, 0xF5 },
781 { 0xC7, 0xFA },
782 { 0xC8, 0xFC },
783 { 0xC9, 0x00 },
784 { 0xCA, 0x00 },
785 { 0xCB, 0x16 },
786 { 0xCC, 0xAF },
787 { 0xCD, 0xFF },
788 { 0xCE, 0xFF },
789 { 0xB0, 0x0C },
790 { 0xB1, 0x04 },
791 { 0xB2, 0x04 },
792 { 0xB3, 0x0F },
793 { 0xB4, 0x22 },
794 { 0xB5, 0x37 },
795 { 0xB6, 0x4D },
796 { 0xB7, 0x71 },
797 { 0xB8, 0xA2 },
798 { 0xB9, 0xE1 },
799 { 0xBA, 0x26 },
800 { 0xBB, 0xA9 },
801 { 0xBC, 0x2F },
802 { 0xBD, 0x33 },
803 { 0xBE, 0xAC },
804 { 0xBF, 0x24 },
805 { 0xC0, 0x5D },
806 { 0xC1, 0x94 },
807 { 0xC2, 0xAC },
808 { 0xC3, 0xC5 },
809 { 0xC4, 0xD1 },
810 { 0xC5, 0xDC },
811 { 0xC6, 0xE8 },
812 { 0xC7, 0xED },
813 { 0xC8, 0xF0 },
814 { 0xC9, 0x00 },
815 { 0xCA, 0x00 },
816 { 0xCB, 0x16 },
817 { 0xCC, 0xAF },
818 { 0xCD, 0xFF },
819 { 0xCE, 0xFF },
820 };
821
822 static const struct panel_desc boe_himax8279d10p_panel_desc = {
823 .display_mode = &default_display_mode,
824 .bpc = 8,
825 .width_mm = 135,
826 .height_mm = 216,
827 .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
828 MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM,
829 .format = MIPI_DSI_FMT_RGB888,
830 .lanes = 4,
831 .on_cmds = boe_himax8279d10p_on_cmds,
832 .on_cmds_num = 283,
833 };
834
835 static const struct of_device_id panel_of_match[] = {
836 {
837 .compatible = "boe,himax8279d8p",
838 .data = &boe_himax8279d8p_panel_desc,
839 },
840 {
841 .compatible = "boe,himax8279d10p",
842 .data = &boe_himax8279d10p_panel_desc,
843 },
844 {
845 /* sentinel */
846 }
847 };
848 MODULE_DEVICE_TABLE(of, panel_of_match);
849
panel_add(struct panel_info * pinfo)850 static int panel_add(struct panel_info *pinfo)
851 {
852 struct device *dev = &pinfo->link->dev;
853 int ret;
854
855 pinfo->pp18_gpio = devm_gpiod_get(dev, "pp18", GPIOD_OUT_HIGH);
856 if (IS_ERR(pinfo->pp18_gpio)) {
857 ret = PTR_ERR(pinfo->pp18_gpio);
858 if (ret != -EPROBE_DEFER)
859 dev_err(dev, "failed to get pp18 gpio: %d\n", ret);
860 return ret;
861 }
862
863 pinfo->pp33_gpio = devm_gpiod_get(dev, "pp33", GPIOD_OUT_HIGH);
864 if (IS_ERR(pinfo->pp33_gpio)) {
865 ret = PTR_ERR(pinfo->pp33_gpio);
866 if (ret != -EPROBE_DEFER)
867 dev_err(dev, "failed to get pp33 gpio: %d\n", ret);
868 return ret;
869 }
870
871 pinfo->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
872 if (IS_ERR(pinfo->enable_gpio)) {
873 ret = PTR_ERR(pinfo->enable_gpio);
874 if (ret != -EPROBE_DEFER)
875 dev_err(dev, "failed to get enable gpio: %d\n", ret);
876 return ret;
877 }
878
879 drm_panel_init(&pinfo->base, dev, &panel_funcs,
880 DRM_MODE_CONNECTOR_DSI);
881
882 ret = drm_panel_of_backlight(&pinfo->base);
883 if (ret)
884 return ret;
885
886 drm_panel_add(&pinfo->base);
887
888 return 0;
889 }
890
panel_probe(struct mipi_dsi_device * dsi)891 static int panel_probe(struct mipi_dsi_device *dsi)
892 {
893 struct panel_info *pinfo;
894 const struct panel_desc *desc;
895 int err;
896
897 pinfo = devm_kzalloc(&dsi->dev, sizeof(*pinfo), GFP_KERNEL);
898 if (!pinfo)
899 return -ENOMEM;
900
901 desc = of_device_get_match_data(&dsi->dev);
902 dsi->mode_flags = desc->mode_flags;
903 dsi->format = desc->format;
904 dsi->lanes = desc->lanes;
905 pinfo->desc = desc;
906
907 pinfo->link = dsi;
908 mipi_dsi_set_drvdata(dsi, pinfo);
909
910 err = panel_add(pinfo);
911 if (err < 0)
912 return err;
913
914 err = mipi_dsi_attach(dsi);
915 if (err < 0)
916 drm_panel_remove(&pinfo->base);
917
918 return err;
919 }
920
panel_remove(struct mipi_dsi_device * dsi)921 static void panel_remove(struct mipi_dsi_device *dsi)
922 {
923 struct panel_info *pinfo = mipi_dsi_get_drvdata(dsi);
924 int err;
925
926 err = boe_panel_disable(&pinfo->base);
927 if (err < 0)
928 dev_err(&dsi->dev, "failed to disable panel: %d\n", err);
929
930 err = boe_panel_unprepare(&pinfo->base);
931 if (err < 0)
932 dev_err(&dsi->dev, "failed to unprepare panel: %d\n", err);
933
934 err = mipi_dsi_detach(dsi);
935 if (err < 0)
936 dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err);
937
938 drm_panel_remove(&pinfo->base);
939 }
940
panel_shutdown(struct mipi_dsi_device * dsi)941 static void panel_shutdown(struct mipi_dsi_device *dsi)
942 {
943 struct panel_info *pinfo = mipi_dsi_get_drvdata(dsi);
944
945 boe_panel_disable(&pinfo->base);
946 boe_panel_unprepare(&pinfo->base);
947 }
948
949 static struct mipi_dsi_driver panel_driver = {
950 .driver = {
951 .name = "panel-boe-himax8279d",
952 .of_match_table = panel_of_match,
953 },
954 .probe = panel_probe,
955 .remove = panel_remove,
956 .shutdown = panel_shutdown,
957 };
958 module_mipi_dsi_driver(panel_driver);
959
960 MODULE_AUTHOR("Jerry Han <jerry.han.hq@gmail.com>");
961 MODULE_DESCRIPTION("Boe Himax8279d driver");
962 MODULE_LICENSE("GPL v2");
963