1 /*
2  * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  */
9 
10 #include <linux/backlight.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 <drm/drmP.h>
18 #include <drm/drm_crtc.h>
19 #include <drm/drm_mipi_dsi.h>
20 #include <drm/drm_panel.h>
21 
22 #include <video/mipi_display.h>
23 
24 struct panel_init_cmd {
25 	size_t len;
26 	const char *data;
27 };
28 
29 #define _INIT_CMD(...) { \
30 	.len = sizeof((char[]){__VA_ARGS__}), \
31 	.data = (char[]){__VA_ARGS__} }
32 
33 struct panel_desc {
34 	const struct drm_display_mode *mode;
35 	unsigned int bpc;
36 	struct {
37 		unsigned int width;
38 		unsigned int height;
39 	} size;
40 
41 	unsigned long flags;
42 	enum mipi_dsi_pixel_format format;
43 	const struct panel_init_cmd *init_cmds;
44 	unsigned int lanes;
45 	const char * const *supply_names;
46 	unsigned int num_supplies;
47 	unsigned int sleep_mode_delay;
48 	unsigned int power_down_delay;
49 };
50 
51 struct innolux_panel {
52 	struct drm_panel base;
53 	struct mipi_dsi_device *link;
54 	const struct panel_desc *desc;
55 
56 	struct backlight_device *backlight;
57 	struct regulator_bulk_data *supplies;
58 	unsigned int num_supplies;
59 	struct gpio_desc *enable_gpio;
60 
61 	bool prepared;
62 	bool enabled;
63 };
64 
65 static inline struct innolux_panel *to_innolux_panel(struct drm_panel *panel)
66 {
67 	return container_of(panel, struct innolux_panel, base);
68 }
69 
70 static int innolux_panel_disable(struct drm_panel *panel)
71 {
72 	struct innolux_panel *innolux = to_innolux_panel(panel);
73 
74 	if (!innolux->enabled)
75 		return 0;
76 
77 	backlight_disable(innolux->backlight);
78 
79 	innolux->enabled = false;
80 
81 	return 0;
82 }
83 
84 static int innolux_panel_unprepare(struct drm_panel *panel)
85 {
86 	struct innolux_panel *innolux = to_innolux_panel(panel);
87 	int err;
88 
89 	if (!innolux->prepared)
90 		return 0;
91 
92 	err = mipi_dsi_dcs_set_display_off(innolux->link);
93 	if (err < 0)
94 		DRM_DEV_ERROR(panel->dev, "failed to set display off: %d\n",
95 			      err);
96 
97 	err = mipi_dsi_dcs_enter_sleep_mode(innolux->link);
98 	if (err < 0) {
99 		DRM_DEV_ERROR(panel->dev, "failed to enter sleep mode: %d\n",
100 			      err);
101 		return err;
102 	}
103 
104 	if (innolux->desc->sleep_mode_delay)
105 		msleep(innolux->desc->sleep_mode_delay);
106 
107 	gpiod_set_value_cansleep(innolux->enable_gpio, 0);
108 
109 	if (innolux->desc->power_down_delay)
110 		msleep(innolux->desc->power_down_delay);
111 
112 	err = regulator_bulk_disable(innolux->desc->num_supplies,
113 				     innolux->supplies);
114 	if (err < 0)
115 		return err;
116 
117 	innolux->prepared = false;
118 
119 	return 0;
120 }
121 
122 static int innolux_panel_prepare(struct drm_panel *panel)
123 {
124 	struct innolux_panel *innolux = to_innolux_panel(panel);
125 	int err;
126 
127 	if (innolux->prepared)
128 		return 0;
129 
130 	gpiod_set_value_cansleep(innolux->enable_gpio, 0);
131 
132 	err = regulator_bulk_enable(innolux->desc->num_supplies,
133 				    innolux->supplies);
134 	if (err < 0)
135 		return err;
136 
137 	/* p079zca: t2 (20ms), p097pfg: t4 (15ms) */
138 	usleep_range(20000, 21000);
139 
140 	gpiod_set_value_cansleep(innolux->enable_gpio, 1);
141 
142 	/* p079zca: t4, p097pfg: t5 */
143 	usleep_range(20000, 21000);
144 
145 	if (innolux->desc->init_cmds) {
146 		const struct panel_init_cmd *cmds =
147 					innolux->desc->init_cmds;
148 		unsigned int i;
149 
150 		for (i = 0; cmds[i].len != 0; i++) {
151 			const struct panel_init_cmd *cmd = &cmds[i];
152 
153 			err = mipi_dsi_generic_write(innolux->link, cmd->data,
154 						     cmd->len);
155 			if (err < 0) {
156 				dev_err(panel->dev,
157 					"failed to write command %u\n", i);
158 				goto poweroff;
159 			}
160 
161 			/*
162 			 * Included by random guessing, because without this
163 			 * (or at least, some delay), the panel sometimes
164 			 * didn't appear to pick up the command sequence.
165 			 */
166 			err = mipi_dsi_dcs_nop(innolux->link);
167 			if (err < 0) {
168 				dev_err(panel->dev,
169 					"failed to send DCS nop: %d\n", err);
170 				goto poweroff;
171 			}
172 		}
173 	}
174 
175 	err = mipi_dsi_dcs_exit_sleep_mode(innolux->link);
176 	if (err < 0) {
177 		DRM_DEV_ERROR(panel->dev, "failed to exit sleep mode: %d\n",
178 			      err);
179 		goto poweroff;
180 	}
181 
182 	/* T6: 120ms - 1000ms*/
183 	msleep(120);
184 
185 	err = mipi_dsi_dcs_set_display_on(innolux->link);
186 	if (err < 0) {
187 		DRM_DEV_ERROR(panel->dev, "failed to set display on: %d\n",
188 			      err);
189 		goto poweroff;
190 	}
191 
192 	/* T7: 5ms */
193 	usleep_range(5000, 6000);
194 
195 	innolux->prepared = true;
196 
197 	return 0;
198 
199 poweroff:
200 	gpiod_set_value_cansleep(innolux->enable_gpio, 0);
201 	regulator_bulk_disable(innolux->desc->num_supplies, innolux->supplies);
202 
203 	return err;
204 }
205 
206 static int innolux_panel_enable(struct drm_panel *panel)
207 {
208 	struct innolux_panel *innolux = to_innolux_panel(panel);
209 	int ret;
210 
211 	if (innolux->enabled)
212 		return 0;
213 
214 	ret = backlight_enable(innolux->backlight);
215 	if (ret) {
216 		DRM_DEV_ERROR(panel->drm->dev,
217 			      "Failed to enable backlight %d\n", ret);
218 		return ret;
219 	}
220 
221 	innolux->enabled = true;
222 
223 	return 0;
224 }
225 
226 static const char * const innolux_p079zca_supply_names[] = {
227 	"power",
228 };
229 
230 static const struct drm_display_mode innolux_p079zca_mode = {
231 	.clock = 56900,
232 	.hdisplay = 768,
233 	.hsync_start = 768 + 40,
234 	.hsync_end = 768 + 40 + 40,
235 	.htotal = 768 + 40 + 40 + 40,
236 	.vdisplay = 1024,
237 	.vsync_start = 1024 + 20,
238 	.vsync_end = 1024 + 20 + 4,
239 	.vtotal = 1024 + 20 + 4 + 20,
240 	.vrefresh = 60,
241 };
242 
243 static const struct panel_desc innolux_p079zca_panel_desc = {
244 	.mode = &innolux_p079zca_mode,
245 	.bpc = 8,
246 	.size = {
247 		.width = 120,
248 		.height = 160,
249 	},
250 	.flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
251 		 MIPI_DSI_MODE_LPM,
252 	.format = MIPI_DSI_FMT_RGB888,
253 	.lanes = 4,
254 	.supply_names = innolux_p079zca_supply_names,
255 	.num_supplies = ARRAY_SIZE(innolux_p079zca_supply_names),
256 	.power_down_delay = 80, /* T8: 80ms - 1000ms */
257 };
258 
259 static const char * const innolux_p097pfg_supply_names[] = {
260 	"avdd",
261 	"avee",
262 };
263 
264 static const struct drm_display_mode innolux_p097pfg_mode = {
265 	.clock = 229000,
266 	.hdisplay = 1536,
267 	.hsync_start = 1536 + 100,
268 	.hsync_end = 1536 + 100 + 24,
269 	.htotal = 1536 + 100 + 24 + 100,
270 	.vdisplay = 2048,
271 	.vsync_start = 2048 + 100,
272 	.vsync_end = 2048 + 100 + 2,
273 	.vtotal = 2048 + 100 + 2 + 18,
274 	.vrefresh = 60,
275 };
276 
277 /*
278  * Display manufacturer failed to provide init sequencing according to
279  * https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/892065/
280  * so the init sequence stems from a register dump of a working panel.
281  */
282 static const struct panel_init_cmd innolux_p097pfg_init_cmds[] = {
283 	/* page 0 */
284 	_INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x00),
285 	_INIT_CMD(0xB1, 0xE8, 0x11),
286 	_INIT_CMD(0xB2, 0x25, 0x02),
287 	_INIT_CMD(0xB5, 0x08, 0x00),
288 	_INIT_CMD(0xBC, 0x0F, 0x00),
289 	_INIT_CMD(0xB8, 0x03, 0x06, 0x00, 0x00),
290 	_INIT_CMD(0xBD, 0x01, 0x90, 0x14, 0x14),
291 	_INIT_CMD(0x6F, 0x01),
292 	_INIT_CMD(0xC0, 0x03),
293 	_INIT_CMD(0x6F, 0x02),
294 	_INIT_CMD(0xC1, 0x0D),
295 	_INIT_CMD(0xD9, 0x01, 0x09, 0x70),
296 	_INIT_CMD(0xC5, 0x12, 0x21, 0x00),
297 	_INIT_CMD(0xBB, 0x93, 0x93),
298 
299 	/* page 1 */
300 	_INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x01),
301 	_INIT_CMD(0xB3, 0x3C, 0x3C),
302 	_INIT_CMD(0xB4, 0x0F, 0x0F),
303 	_INIT_CMD(0xB9, 0x45, 0x45),
304 	_INIT_CMD(0xBA, 0x14, 0x14),
305 	_INIT_CMD(0xCA, 0x02),
306 	_INIT_CMD(0xCE, 0x04),
307 	_INIT_CMD(0xC3, 0x9B, 0x9B),
308 	_INIT_CMD(0xD8, 0xC0, 0x03),
309 	_INIT_CMD(0xBC, 0x82, 0x01),
310 	_INIT_CMD(0xBD, 0x9E, 0x01),
311 
312 	/* page 2 */
313 	_INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x02),
314 	_INIT_CMD(0xB0, 0x82),
315 	_INIT_CMD(0xD1, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x82, 0x00, 0xA5,
316 		  0x00, 0xC1, 0x00, 0xEA, 0x01, 0x0D, 0x01, 0x40),
317 	_INIT_CMD(0xD2, 0x01, 0x6A, 0x01, 0xA8, 0x01, 0xDC, 0x02, 0x29,
318 		  0x02, 0x67, 0x02, 0x68, 0x02, 0xA8, 0x02, 0xF0),
319 	_INIT_CMD(0xD3, 0x03, 0x19, 0x03, 0x49, 0x03, 0x67, 0x03, 0x8C,
320 		  0x03, 0xA6, 0x03, 0xC7, 0x03, 0xDE, 0x03, 0xEC),
321 	_INIT_CMD(0xD4, 0x03, 0xFF, 0x03, 0xFF),
322 	_INIT_CMD(0xE0, 0x00, 0x00, 0x00, 0x86, 0x00, 0xC5, 0x00, 0xE5,
323 		  0x00, 0xFF, 0x01, 0x26, 0x01, 0x45, 0x01, 0x75),
324 	_INIT_CMD(0xE1, 0x01, 0x9C, 0x01, 0xD5, 0x02, 0x05, 0x02, 0x4D,
325 		  0x02, 0x86, 0x02, 0x87, 0x02, 0xC3, 0x03, 0x03),
326 	_INIT_CMD(0xE2, 0x03, 0x2A, 0x03, 0x56, 0x03, 0x72, 0x03, 0x94,
327 		  0x03, 0xAC, 0x03, 0xCB, 0x03, 0xE0, 0x03, 0xED),
328 	_INIT_CMD(0xE3, 0x03, 0xFF, 0x03, 0xFF),
329 
330 	/* page 3 */
331 	_INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x03),
332 	_INIT_CMD(0xB0, 0x00, 0x00, 0x00, 0x00),
333 	_INIT_CMD(0xB1, 0x00, 0x00, 0x00, 0x00),
334 	_INIT_CMD(0xB2, 0x00, 0x00, 0x06, 0x04, 0x01, 0x40, 0x85),
335 	_INIT_CMD(0xB3, 0x10, 0x07, 0xFC, 0x04, 0x01, 0x40, 0x80),
336 	_INIT_CMD(0xB6, 0xF0, 0x08, 0x00, 0x04, 0x00, 0x00, 0x00, 0x01,
337 		  0x40, 0x80),
338 	_INIT_CMD(0xBA, 0xC5, 0x07, 0x00, 0x04, 0x11, 0x25, 0x8C),
339 	_INIT_CMD(0xBB, 0xC5, 0x07, 0x00, 0x03, 0x11, 0x25, 0x8C),
340 	_INIT_CMD(0xC0, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x80, 0x80),
341 	_INIT_CMD(0xC1, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x80, 0x80),
342 	_INIT_CMD(0xC4, 0x00, 0x00),
343 	_INIT_CMD(0xEF, 0x41),
344 
345 	/* page 4 */
346 	_INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x04),
347 	_INIT_CMD(0xEC, 0x4C),
348 
349 	/* page 5 */
350 	_INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x05),
351 	_INIT_CMD(0xB0, 0x13, 0x03, 0x03, 0x01),
352 	_INIT_CMD(0xB1, 0x30, 0x00),
353 	_INIT_CMD(0xB2, 0x02, 0x02, 0x00),
354 	_INIT_CMD(0xB3, 0x82, 0x23, 0x82, 0x9D),
355 	_INIT_CMD(0xB4, 0xC5, 0x75, 0x24, 0x57),
356 	_INIT_CMD(0xB5, 0x00, 0xD4, 0x72, 0x11, 0x11, 0xAB, 0x0A),
357 	_INIT_CMD(0xB6, 0x00, 0x00, 0xD5, 0x72, 0x24, 0x56),
358 	_INIT_CMD(0xB7, 0x5C, 0xDC, 0x5C, 0x5C),
359 	_INIT_CMD(0xB9, 0x0C, 0x00, 0x00, 0x01, 0x00),
360 	_INIT_CMD(0xC0, 0x75, 0x11, 0x11, 0x54, 0x05),
361 	_INIT_CMD(0xC6, 0x00, 0x00, 0x00, 0x00),
362 	_INIT_CMD(0xD0, 0x00, 0x48, 0x08, 0x00, 0x00),
363 	_INIT_CMD(0xD1, 0x00, 0x48, 0x09, 0x00, 0x00),
364 
365 	/* page 6 */
366 	_INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x06),
367 	_INIT_CMD(0xB0, 0x02, 0x32, 0x32, 0x08, 0x2F),
368 	_INIT_CMD(0xB1, 0x2E, 0x15, 0x14, 0x13, 0x12),
369 	_INIT_CMD(0xB2, 0x11, 0x10, 0x00, 0x3D, 0x3D),
370 	_INIT_CMD(0xB3, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
371 	_INIT_CMD(0xB4, 0x3D, 0x32),
372 	_INIT_CMD(0xB5, 0x03, 0x32, 0x32, 0x09, 0x2F),
373 	_INIT_CMD(0xB6, 0x2E, 0x1B, 0x1A, 0x19, 0x18),
374 	_INIT_CMD(0xB7, 0x17, 0x16, 0x01, 0x3D, 0x3D),
375 	_INIT_CMD(0xB8, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
376 	_INIT_CMD(0xB9, 0x3D, 0x32),
377 	_INIT_CMD(0xC0, 0x01, 0x32, 0x32, 0x09, 0x2F),
378 	_INIT_CMD(0xC1, 0x2E, 0x1A, 0x1B, 0x16, 0x17),
379 	_INIT_CMD(0xC2, 0x18, 0x19, 0x03, 0x3D, 0x3D),
380 	_INIT_CMD(0xC3, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
381 	_INIT_CMD(0xC4, 0x3D, 0x32),
382 	_INIT_CMD(0xC5, 0x00, 0x32, 0x32, 0x08, 0x2F),
383 	_INIT_CMD(0xC6, 0x2E, 0x14, 0x15, 0x10, 0x11),
384 	_INIT_CMD(0xC7, 0x12, 0x13, 0x02, 0x3D, 0x3D),
385 	_INIT_CMD(0xC8, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D),
386 	_INIT_CMD(0xC9, 0x3D, 0x32),
387 
388 	{},
389 };
390 
391 static const struct panel_desc innolux_p097pfg_panel_desc = {
392 	.mode = &innolux_p097pfg_mode,
393 	.bpc = 8,
394 	.size = {
395 		.width = 147,
396 		.height = 196,
397 	},
398 	.flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
399 		 MIPI_DSI_MODE_LPM,
400 	.format = MIPI_DSI_FMT_RGB888,
401 	.init_cmds = innolux_p097pfg_init_cmds,
402 	.lanes = 4,
403 	.supply_names = innolux_p097pfg_supply_names,
404 	.num_supplies = ARRAY_SIZE(innolux_p097pfg_supply_names),
405 	.sleep_mode_delay = 100, /* T15 */
406 };
407 
408 static int innolux_panel_get_modes(struct drm_panel *panel)
409 {
410 	struct innolux_panel *innolux = to_innolux_panel(panel);
411 	const struct drm_display_mode *m = innolux->desc->mode;
412 	struct drm_display_mode *mode;
413 
414 	mode = drm_mode_duplicate(panel->drm, m);
415 	if (!mode) {
416 		DRM_DEV_ERROR(panel->drm->dev, "failed to add mode %ux%ux@%u\n",
417 			      m->hdisplay, m->vdisplay, m->vrefresh);
418 		return -ENOMEM;
419 	}
420 
421 	drm_mode_set_name(mode);
422 
423 	drm_mode_probed_add(panel->connector, mode);
424 
425 	panel->connector->display_info.width_mm =
426 			innolux->desc->size.width;
427 	panel->connector->display_info.height_mm =
428 			innolux->desc->size.height;
429 	panel->connector->display_info.bpc = innolux->desc->bpc;
430 
431 	return 1;
432 }
433 
434 static const struct drm_panel_funcs innolux_panel_funcs = {
435 	.disable = innolux_panel_disable,
436 	.unprepare = innolux_panel_unprepare,
437 	.prepare = innolux_panel_prepare,
438 	.enable = innolux_panel_enable,
439 	.get_modes = innolux_panel_get_modes,
440 };
441 
442 static const struct of_device_id innolux_of_match[] = {
443 	{ .compatible = "innolux,p079zca",
444 	  .data = &innolux_p079zca_panel_desc
445 	},
446 	{ .compatible = "innolux,p097pfg",
447 	  .data = &innolux_p097pfg_panel_desc
448 	},
449 	{ }
450 };
451 MODULE_DEVICE_TABLE(of, innolux_of_match);
452 
453 static int innolux_panel_add(struct mipi_dsi_device *dsi,
454 			     const struct panel_desc *desc)
455 {
456 	struct innolux_panel *innolux;
457 	struct device *dev = &dsi->dev;
458 	int err, i;
459 
460 	innolux = devm_kzalloc(dev, sizeof(*innolux), GFP_KERNEL);
461 	if (!innolux)
462 		return -ENOMEM;
463 
464 	innolux->desc = desc;
465 
466 	innolux->supplies = devm_kcalloc(dev, desc->num_supplies,
467 					 sizeof(*innolux->supplies),
468 					 GFP_KERNEL);
469 	if (!innolux->supplies)
470 		return -ENOMEM;
471 
472 	for (i = 0; i < desc->num_supplies; i++)
473 		innolux->supplies[i].supply = desc->supply_names[i];
474 
475 	err = devm_regulator_bulk_get(dev, desc->num_supplies,
476 				      innolux->supplies);
477 	if (err < 0)
478 		return err;
479 
480 	innolux->enable_gpio = devm_gpiod_get_optional(dev, "enable",
481 						       GPIOD_OUT_HIGH);
482 	if (IS_ERR(innolux->enable_gpio)) {
483 		err = PTR_ERR(innolux->enable_gpio);
484 		dev_dbg(dev, "failed to get enable gpio: %d\n", err);
485 		innolux->enable_gpio = NULL;
486 	}
487 
488 	innolux->backlight = devm_of_find_backlight(dev);
489 	if (IS_ERR(innolux->backlight))
490 		return PTR_ERR(innolux->backlight);
491 
492 	drm_panel_init(&innolux->base);
493 	innolux->base.funcs = &innolux_panel_funcs;
494 	innolux->base.dev = dev;
495 
496 	err = drm_panel_add(&innolux->base);
497 	if (err < 0)
498 		return err;
499 
500 	mipi_dsi_set_drvdata(dsi, innolux);
501 	innolux->link = dsi;
502 
503 	return 0;
504 }
505 
506 static void innolux_panel_del(struct innolux_panel *innolux)
507 {
508 	drm_panel_remove(&innolux->base);
509 }
510 
511 static int innolux_panel_probe(struct mipi_dsi_device *dsi)
512 {
513 	const struct panel_desc *desc;
514 	int err;
515 
516 	desc = of_device_get_match_data(&dsi->dev);
517 	dsi->mode_flags = desc->flags;
518 	dsi->format = desc->format;
519 	dsi->lanes = desc->lanes;
520 
521 	err = innolux_panel_add(dsi, desc);
522 	if (err < 0)
523 		return err;
524 
525 	return mipi_dsi_attach(dsi);
526 }
527 
528 static int innolux_panel_remove(struct mipi_dsi_device *dsi)
529 {
530 	struct innolux_panel *innolux = mipi_dsi_get_drvdata(dsi);
531 	int err;
532 
533 	err = innolux_panel_unprepare(&innolux->base);
534 	if (err < 0)
535 		DRM_DEV_ERROR(&dsi->dev, "failed to unprepare panel: %d\n",
536 			      err);
537 
538 	err = innolux_panel_disable(&innolux->base);
539 	if (err < 0)
540 		DRM_DEV_ERROR(&dsi->dev, "failed to disable panel: %d\n", err);
541 
542 	err = mipi_dsi_detach(dsi);
543 	if (err < 0)
544 		DRM_DEV_ERROR(&dsi->dev, "failed to detach from DSI host: %d\n",
545 			      err);
546 
547 	innolux_panel_del(innolux);
548 
549 	return 0;
550 }
551 
552 static void innolux_panel_shutdown(struct mipi_dsi_device *dsi)
553 {
554 	struct innolux_panel *innolux = mipi_dsi_get_drvdata(dsi);
555 
556 	innolux_panel_unprepare(&innolux->base);
557 	innolux_panel_disable(&innolux->base);
558 }
559 
560 static struct mipi_dsi_driver innolux_panel_driver = {
561 	.driver = {
562 		.name = "panel-innolux-p079zca",
563 		.of_match_table = innolux_of_match,
564 	},
565 	.probe = innolux_panel_probe,
566 	.remove = innolux_panel_remove,
567 	.shutdown = innolux_panel_shutdown,
568 };
569 module_mipi_dsi_driver(innolux_panel_driver);
570 
571 MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
572 MODULE_AUTHOR("Lin Huang <hl@rock-chips.com>");
573 MODULE_DESCRIPTION("Innolux P079ZCA panel driver");
574 MODULE_LICENSE("GPL v2");
575