1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
6 #include <linux/delay.h>
7 #include <linux/gpio/consumer.h>
8 #include <linux/module.h>
10 #include <linux/of_device.h>
11 #include <linux/regulator/consumer.h>
13 #include <video/mipi_display.h>
15 #include <drm/drm_crtc.h>
16 #include <drm/drm_device.h>
17 #include <drm/drm_mipi_dsi.h>
18 #include <drm/drm_modes.h>
19 #include <drm/drm_panel.h>
20 #include <drm/drm_print.h>
22 struct panel_init_cmd
{
27 #define _INIT_CMD(...) { \
28 .len = sizeof((char[]){__VA_ARGS__}), \
29 .data = (char[]){__VA_ARGS__} }
32 const struct drm_display_mode
*mode
;
40 enum mipi_dsi_pixel_format format
;
41 const struct panel_init_cmd
*init_cmds
;
43 const char * const *supply_names
;
44 unsigned int num_supplies
;
45 unsigned int sleep_mode_delay
;
46 unsigned int power_down_delay
;
49 struct innolux_panel
{
50 struct drm_panel base
;
51 struct mipi_dsi_device
*link
;
52 const struct panel_desc
*desc
;
54 struct regulator_bulk_data
*supplies
;
55 struct gpio_desc
*enable_gpio
;
61 static inline struct innolux_panel
*to_innolux_panel(struct drm_panel
*panel
)
63 return container_of(panel
, struct innolux_panel
, base
);
66 static int innolux_panel_disable(struct drm_panel
*panel
)
68 struct innolux_panel
*innolux
= to_innolux_panel(panel
);
70 if (!innolux
->enabled
)
73 innolux
->enabled
= false;
78 static int innolux_panel_unprepare(struct drm_panel
*panel
)
80 struct innolux_panel
*innolux
= to_innolux_panel(panel
);
83 if (!innolux
->prepared
)
86 err
= mipi_dsi_dcs_set_display_off(innolux
->link
);
88 DRM_DEV_ERROR(panel
->dev
, "failed to set display off: %d\n",
91 err
= mipi_dsi_dcs_enter_sleep_mode(innolux
->link
);
93 DRM_DEV_ERROR(panel
->dev
, "failed to enter sleep mode: %d\n",
98 if (innolux
->desc
->sleep_mode_delay
)
99 msleep(innolux
->desc
->sleep_mode_delay
);
101 gpiod_set_value_cansleep(innolux
->enable_gpio
, 0);
103 if (innolux
->desc
->power_down_delay
)
104 msleep(innolux
->desc
->power_down_delay
);
106 err
= regulator_bulk_disable(innolux
->desc
->num_supplies
,
111 innolux
->prepared
= false;
116 static int innolux_panel_prepare(struct drm_panel
*panel
)
118 struct innolux_panel
*innolux
= to_innolux_panel(panel
);
121 if (innolux
->prepared
)
124 gpiod_set_value_cansleep(innolux
->enable_gpio
, 0);
126 err
= regulator_bulk_enable(innolux
->desc
->num_supplies
,
131 /* p079zca: t2 (20ms), p097pfg: t4 (15ms) */
132 usleep_range(20000, 21000);
134 gpiod_set_value_cansleep(innolux
->enable_gpio
, 1);
136 /* p079zca: t4, p097pfg: t5 */
137 usleep_range(20000, 21000);
139 if (innolux
->desc
->init_cmds
) {
140 const struct panel_init_cmd
*cmds
=
141 innolux
->desc
->init_cmds
;
144 for (i
= 0; cmds
[i
].len
!= 0; i
++) {
145 const struct panel_init_cmd
*cmd
= &cmds
[i
];
147 err
= mipi_dsi_generic_write(innolux
->link
, cmd
->data
,
151 "failed to write command %u\n", i
);
156 * Included by random guessing, because without this
157 * (or at least, some delay), the panel sometimes
158 * didn't appear to pick up the command sequence.
160 err
= mipi_dsi_dcs_nop(innolux
->link
);
163 "failed to send DCS nop: %d\n", err
);
169 err
= mipi_dsi_dcs_exit_sleep_mode(innolux
->link
);
171 DRM_DEV_ERROR(panel
->dev
, "failed to exit sleep mode: %d\n",
176 /* T6: 120ms - 1000ms*/
179 err
= mipi_dsi_dcs_set_display_on(innolux
->link
);
181 DRM_DEV_ERROR(panel
->dev
, "failed to set display on: %d\n",
187 usleep_range(5000, 6000);
189 innolux
->prepared
= true;
194 gpiod_set_value_cansleep(innolux
->enable_gpio
, 0);
195 regulator_bulk_disable(innolux
->desc
->num_supplies
, innolux
->supplies
);
200 static int innolux_panel_enable(struct drm_panel
*panel
)
202 struct innolux_panel
*innolux
= to_innolux_panel(panel
);
204 if (innolux
->enabled
)
207 innolux
->enabled
= true;
212 static const char * const innolux_p079zca_supply_names
[] = {
216 static const struct drm_display_mode innolux_p079zca_mode
= {
219 .hsync_start
= 768 + 40,
220 .hsync_end
= 768 + 40 + 40,
221 .htotal
= 768 + 40 + 40 + 40,
223 .vsync_start
= 1024 + 20,
224 .vsync_end
= 1024 + 20 + 4,
225 .vtotal
= 1024 + 20 + 4 + 20,
229 static const struct panel_desc innolux_p079zca_panel_desc
= {
230 .mode
= &innolux_p079zca_mode
,
236 .flags
= MIPI_DSI_MODE_VIDEO
| MIPI_DSI_MODE_VIDEO_SYNC_PULSE
|
238 .format
= MIPI_DSI_FMT_RGB888
,
240 .supply_names
= innolux_p079zca_supply_names
,
241 .num_supplies
= ARRAY_SIZE(innolux_p079zca_supply_names
),
242 .power_down_delay
= 80, /* T8: 80ms - 1000ms */
245 static const char * const innolux_p097pfg_supply_names
[] = {
250 static const struct drm_display_mode innolux_p097pfg_mode
= {
253 .hsync_start
= 1536 + 100,
254 .hsync_end
= 1536 + 100 + 24,
255 .htotal
= 1536 + 100 + 24 + 100,
257 .vsync_start
= 2048 + 100,
258 .vsync_end
= 2048 + 100 + 2,
259 .vtotal
= 2048 + 100 + 2 + 18,
264 * Display manufacturer failed to provide init sequencing according to
265 * https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/892065/
266 * so the init sequence stems from a register dump of a working panel.
268 static const struct panel_init_cmd innolux_p097pfg_init_cmds
[] = {
270 _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x00),
271 _INIT_CMD(0xB1, 0xE8, 0x11),
272 _INIT_CMD(0xB2, 0x25, 0x02),
273 _INIT_CMD(0xB5, 0x08, 0x00),
274 _INIT_CMD(0xBC, 0x0F, 0x00),
275 _INIT_CMD(0xB8, 0x03, 0x06, 0x00, 0x00),
276 _INIT_CMD(0xBD, 0x01, 0x90, 0x14, 0x14),
277 _INIT_CMD(0x6F, 0x01),
278 _INIT_CMD(0xC0, 0x03),
279 _INIT_CMD(0x6F, 0x02),
280 _INIT_CMD(0xC1, 0x0D),
281 _INIT_CMD(0xD9, 0x01, 0x09, 0x70),
282 _INIT_CMD(0xC5, 0x12, 0x21, 0x00),
283 _INIT_CMD(0xBB, 0x93, 0x93),
286 _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x01),
287 _INIT_CMD(0xB3, 0x3C, 0x3C),
288 _INIT_CMD(0xB4, 0x0F, 0x0F),
289 _INIT_CMD(0xB9, 0x45, 0x45),
290 _INIT_CMD(0xBA, 0x14, 0x14),
291 _INIT_CMD(0xCA, 0x02),
292 _INIT_CMD(0xCE, 0x04),
293 _INIT_CMD(0xC3, 0x9B, 0x9B),
294 _INIT_CMD(0xD8, 0xC0, 0x03),
295 _INIT_CMD(0xBC, 0x82, 0x01),
296 _INIT_CMD(0xBD, 0x9E, 0x01),
299 _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x02),
300 _INIT_CMD(0xB0, 0x82),
301 _INIT_CMD(0xD1, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x82, 0x00, 0xA5,
302 0x00, 0xC1, 0x00, 0xEA, 0x01, 0x0D, 0x01, 0x40),
303 _INIT_CMD(0xD2, 0x01, 0x6A, 0x01, 0xA8, 0x01, 0xDC, 0x02, 0x29,
304 0x02, 0x67, 0x02, 0x68, 0x02, 0xA8, 0x02, 0xF0),
305 _INIT_CMD(0xD3, 0x03, 0x19, 0x03, 0x49, 0x03, 0x67, 0x03, 0x8C,
306 0x03, 0xA6, 0x03, 0xC7, 0x03, 0xDE, 0x03, 0xEC),
307 _INIT_CMD(0xD4, 0x03, 0xFF, 0x03, 0xFF),
308 _INIT_CMD(0xE0, 0x00, 0x00, 0x00, 0x86, 0x00, 0xC5, 0x00, 0xE5,
309 0x00, 0xFF, 0x01, 0x26, 0x01, 0x45, 0x01, 0x75),
310 _INIT_CMD(0xE1, 0x01, 0x9C, 0x01, 0xD5, 0x02, 0x05, 0x02, 0x4D,
311 0x02, 0x86, 0x02, 0x87, 0x02, 0xC3, 0x03, 0x03),
312 _INIT_CMD(0xE2, 0x03, 0x2A, 0x03, 0x56, 0x03, 0x72, 0x03, 0x94,
313 0x03, 0xAC, 0x03, 0xCB, 0x03, 0xE0, 0x03, 0xED),
314 _INIT_CMD(0xE3, 0x03, 0xFF, 0x03, 0xFF),
317 _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x03),
318 _INIT_CMD(0xB0, 0x00, 0x00, 0x00, 0x00),
319 _INIT_CMD(0xB1, 0x00, 0x00, 0x00, 0x00),
320 _INIT_CMD(0xB2, 0x00, 0x00, 0x06, 0x04, 0x01, 0x40, 0x85),
321 _INIT_CMD(0xB3, 0x10, 0x07, 0xFC, 0x04, 0x01, 0x40, 0x80),
322 _INIT_CMD(0xB6, 0xF0, 0x08, 0x00, 0x04, 0x00, 0x00, 0x00, 0x01,
324 _INIT_CMD(0xBA, 0xC5, 0x07, 0x00, 0x04, 0x11, 0x25, 0x8C),
325 _INIT_CMD(0xBB, 0xC5, 0x07, 0x00, 0x03, 0x11, 0x25, 0x8C),
326 _INIT_CMD(0xC0, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x80, 0x80),
327 _INIT_CMD(0xC1, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x80, 0x80),
328 _INIT_CMD(0xC4, 0x00, 0x00),
329 _INIT_CMD(0xEF, 0x41),
332 _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x04),
333 _INIT_CMD(0xEC, 0x4C),
336 _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x05),
337 _INIT_CMD(0xB0, 0x13, 0x03, 0x03, 0x01),
338 _INIT_CMD(0xB1, 0x30, 0x00),
339 _INIT_CMD(0xB2, 0x02, 0x02, 0x00),
340 _INIT_CMD(0xB3, 0x82, 0x23, 0x82, 0x9D),
341 _INIT_CMD(0xB4, 0xC5, 0x75, 0x24, 0x57),
342 _INIT_CMD(0xB5, 0x00, 0xD4, 0x72, 0x11, 0x11, 0xAB, 0x0A),
343 _INIT_CMD(0xB6, 0x00, 0x00, 0xD5, 0x72, 0x24, 0x56),
344 _INIT_CMD(0xB7, 0x5C, 0xDC, 0x5C, 0x5C),
345 _INIT_CMD(0xB9, 0x0C, 0x00, 0x00, 0x01, 0x00),
346 _INIT_CMD(0xC0, 0x75, 0x11, 0x11, 0x54, 0x05),
347 _INIT_CMD(0xC6, 0x00, 0x00, 0x00, 0x00),
348 _INIT_CMD(0xD0, 0x00, 0x48, 0x08, 0x00, 0x00),
349 _INIT_CMD(0xD1, 0x00, 0x48, 0x09, 0x00, 0x00),
352 _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x06),
353 _INIT_CMD(0xB0, 0x02, 0x32, 0x32, 0x08, 0x2F),
354 _INIT_CMD(0xB1, 0x2E, 0x15, 0x14, 0x13, 0x12),
355 _INIT_CMD(0xB2, 0x11, 0x10, 0x00, 0x3D, 0x3D),
356 _INIT_CMD(0xB3, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
357 _INIT_CMD(0xB4, 0x3D, 0x32),
358 _INIT_CMD(0xB5, 0x03, 0x32, 0x32, 0x09, 0x2F),
359 _INIT_CMD(0xB6, 0x2E, 0x1B, 0x1A, 0x19, 0x18),
360 _INIT_CMD(0xB7, 0x17, 0x16, 0x01, 0x3D, 0x3D),
361 _INIT_CMD(0xB8, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
362 _INIT_CMD(0xB9, 0x3D, 0x32),
363 _INIT_CMD(0xC0, 0x01, 0x32, 0x32, 0x09, 0x2F),
364 _INIT_CMD(0xC1, 0x2E, 0x1A, 0x1B, 0x16, 0x17),
365 _INIT_CMD(0xC2, 0x18, 0x19, 0x03, 0x3D, 0x3D),
366 _INIT_CMD(0xC3, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
367 _INIT_CMD(0xC4, 0x3D, 0x32),
368 _INIT_CMD(0xC5, 0x00, 0x32, 0x32, 0x08, 0x2F),
369 _INIT_CMD(0xC6, 0x2E, 0x14, 0x15, 0x10, 0x11),
370 _INIT_CMD(0xC7, 0x12, 0x13, 0x02, 0x3D, 0x3D),
371 _INIT_CMD(0xC8, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
372 _INIT_CMD(0xC9, 0x3D, 0x32),
377 static const struct panel_desc innolux_p097pfg_panel_desc
= {
378 .mode
= &innolux_p097pfg_mode
,
384 .flags
= MIPI_DSI_MODE_VIDEO
| MIPI_DSI_MODE_VIDEO_SYNC_PULSE
|
386 .format
= MIPI_DSI_FMT_RGB888
,
387 .init_cmds
= innolux_p097pfg_init_cmds
,
389 .supply_names
= innolux_p097pfg_supply_names
,
390 .num_supplies
= ARRAY_SIZE(innolux_p097pfg_supply_names
),
391 .sleep_mode_delay
= 100, /* T15 */
394 static int innolux_panel_get_modes(struct drm_panel
*panel
,
395 struct drm_connector
*connector
)
397 struct innolux_panel
*innolux
= to_innolux_panel(panel
);
398 const struct drm_display_mode
*m
= innolux
->desc
->mode
;
399 struct drm_display_mode
*mode
;
401 mode
= drm_mode_duplicate(connector
->dev
, m
);
403 DRM_DEV_ERROR(panel
->dev
, "failed to add mode %ux%ux@%u\n",
404 m
->hdisplay
, m
->vdisplay
, m
->vrefresh
);
408 drm_mode_set_name(mode
);
410 drm_mode_probed_add(connector
, mode
);
412 connector
->display_info
.width_mm
= innolux
->desc
->size
.width
;
413 connector
->display_info
.height_mm
= innolux
->desc
->size
.height
;
414 connector
->display_info
.bpc
= innolux
->desc
->bpc
;
419 static const struct drm_panel_funcs innolux_panel_funcs
= {
420 .disable
= innolux_panel_disable
,
421 .unprepare
= innolux_panel_unprepare
,
422 .prepare
= innolux_panel_prepare
,
423 .enable
= innolux_panel_enable
,
424 .get_modes
= innolux_panel_get_modes
,
427 static const struct of_device_id innolux_of_match
[] = {
428 { .compatible
= "innolux,p079zca",
429 .data
= &innolux_p079zca_panel_desc
431 { .compatible
= "innolux,p097pfg",
432 .data
= &innolux_p097pfg_panel_desc
436 MODULE_DEVICE_TABLE(of
, innolux_of_match
);
438 static int innolux_panel_add(struct mipi_dsi_device
*dsi
,
439 const struct panel_desc
*desc
)
441 struct innolux_panel
*innolux
;
442 struct device
*dev
= &dsi
->dev
;
445 innolux
= devm_kzalloc(dev
, sizeof(*innolux
), GFP_KERNEL
);
449 innolux
->desc
= desc
;
451 innolux
->supplies
= devm_kcalloc(dev
, desc
->num_supplies
,
452 sizeof(*innolux
->supplies
),
454 if (!innolux
->supplies
)
457 for (i
= 0; i
< desc
->num_supplies
; i
++)
458 innolux
->supplies
[i
].supply
= desc
->supply_names
[i
];
460 err
= devm_regulator_bulk_get(dev
, desc
->num_supplies
,
465 innolux
->enable_gpio
= devm_gpiod_get_optional(dev
, "enable",
467 if (IS_ERR(innolux
->enable_gpio
)) {
468 err
= PTR_ERR(innolux
->enable_gpio
);
469 dev_dbg(dev
, "failed to get enable gpio: %d\n", err
);
470 innolux
->enable_gpio
= NULL
;
473 drm_panel_init(&innolux
->base
, dev
, &innolux_panel_funcs
,
474 DRM_MODE_CONNECTOR_DSI
);
476 err
= drm_panel_of_backlight(&innolux
->base
);
480 err
= drm_panel_add(&innolux
->base
);
484 mipi_dsi_set_drvdata(dsi
, innolux
);
490 static void innolux_panel_del(struct innolux_panel
*innolux
)
492 drm_panel_remove(&innolux
->base
);
495 static int innolux_panel_probe(struct mipi_dsi_device
*dsi
)
497 const struct panel_desc
*desc
;
500 desc
= of_device_get_match_data(&dsi
->dev
);
501 dsi
->mode_flags
= desc
->flags
;
502 dsi
->format
= desc
->format
;
503 dsi
->lanes
= desc
->lanes
;
505 err
= innolux_panel_add(dsi
, desc
);
509 return mipi_dsi_attach(dsi
);
512 static int innolux_panel_remove(struct mipi_dsi_device
*dsi
)
514 struct innolux_panel
*innolux
= mipi_dsi_get_drvdata(dsi
);
517 err
= drm_panel_unprepare(&innolux
->base
);
519 DRM_DEV_ERROR(&dsi
->dev
, "failed to unprepare panel: %d\n",
522 err
= drm_panel_disable(&innolux
->base
);
524 DRM_DEV_ERROR(&dsi
->dev
, "failed to disable panel: %d\n", err
);
526 err
= mipi_dsi_detach(dsi
);
528 DRM_DEV_ERROR(&dsi
->dev
, "failed to detach from DSI host: %d\n",
531 innolux_panel_del(innolux
);
536 static void innolux_panel_shutdown(struct mipi_dsi_device
*dsi
)
538 struct innolux_panel
*innolux
= mipi_dsi_get_drvdata(dsi
);
540 drm_panel_unprepare(&innolux
->base
);
541 drm_panel_disable(&innolux
->base
);
544 static struct mipi_dsi_driver innolux_panel_driver
= {
546 .name
= "panel-innolux-p079zca",
547 .of_match_table
= innolux_of_match
,
549 .probe
= innolux_panel_probe
,
550 .remove
= innolux_panel_remove
,
551 .shutdown
= innolux_panel_shutdown
,
553 module_mipi_dsi_driver(innolux_panel_driver
);
555 MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
556 MODULE_AUTHOR("Lin Huang <hl@rock-chips.com>");
557 MODULE_DESCRIPTION("Innolux P079ZCA panel driver");
558 MODULE_LICENSE("GPL v2");