1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Magnachip d53e6ea8966 MIPI-DSI panel driver
4  * Copyright (C) 2023 Chris Morgan
5  */
6 
7 #include <drm/drm_mipi_dbi.h>
8 #include <drm/drm_mipi_dsi.h>
9 #include <drm/drm_modes.h>
10 #include <drm/drm_of.h>
11 #include <drm/drm_panel.h>
12 
13 #include <linux/backlight.h>
14 #include <linux/delay.h>
15 #include <linux/gpio/consumer.h>
16 #include <linux/init.h>
17 #include <linux/kernel.h>
18 #include <linux/media-bus-format.h>
19 #include <linux/module.h>
20 #include <linux/of.h>
21 #include <linux/regulator/consumer.h>
22 #include <linux/spi/spi.h>
23 
24 #include <video/mipi_display.h>
25 
26 /* Forward declaration for use in backlight function */
27 struct d53e6ea8966;
28 
29 /* Panel info, unique to each panel */
30 struct d53e6ea8966_panel_info {
31 	/** @display_modes: the supported display modes */
32 	const struct drm_display_mode *display_modes;
33 	/** @num_modes: the number of supported display modes */
34 	unsigned int num_modes;
35 	/** @width_mm: panel width in mm */
36 	u16 width_mm;
37 	/** @height_mm: panel height in mm */
38 	u16 height_mm;
39 	/** @bus_flags: drm bus flags for panel */
40 	u32 bus_flags;
41 	/** @panel_init_seq: panel specific init sequence */
42 	void (*panel_init_seq)(struct d53e6ea8966 *db);
43 	/** @backlight_register: panel backlight registration or NULL */
44 	int (*backlight_register)(struct d53e6ea8966 *db);
45 };
46 
47 struct d53e6ea8966 {
48 	/** @dev: the container device */
49 	struct device *dev;
50 	/** @dbi: the DBI bus abstraction handle */
51 	struct mipi_dbi dbi;
52 	/** @panel: the DRM panel instance for this device */
53 	struct drm_panel panel;
54 	/** @reset: reset GPIO line */
55 	struct gpio_desc *reset;
56 	/** @enable: enable GPIO line */
57 	struct gpio_desc *enable;
58 	/** @reg_vdd: VDD supply regulator for panel logic */
59 	struct regulator *reg_vdd;
60 	/** @reg_elvdd: ELVDD supply regulator for panel display */
61 	struct regulator *reg_elvdd;
62 	/** @dsi_dev: DSI child device (panel) */
63 	struct mipi_dsi_device *dsi_dev;
64 	/** @bl_dev: pseudo-backlight device for oled panel */
65 	struct backlight_device *bl_dev;
66 	/** @panel_info: struct containing panel timing and info */
67 	const struct d53e6ea8966_panel_info *panel_info;
68 };
69 
70 #define NUM_GAMMA_LEVELS	16
71 #define GAMMA_TABLE_COUNT	23
72 #define MAX_BRIGHTNESS		(NUM_GAMMA_LEVELS - 1)
73 
74 #define MCS_ELVSS_ON			0xb1
75 #define MCS_TEMP_SWIRE			0xb2
76 #define MCS_PASSWORD_0			0xf0
77 #define MCS_PASSWORD_1			0xf1
78 #define MCS_ANALOG_PWR_CTL_0		0xf4
79 #define MCS_ANALOG_PWR_CTL_1		0xf5
80 #define MCS_GTCON_SET			0xf7
81 #define MCS_GATELESS_SIGNAL_SET		0xf8
82 #define MCS_SET_GAMMA			0xf9
83 
84 static inline struct d53e6ea8966 *to_d53e6ea8966(struct drm_panel *panel)
85 {
86 	return container_of(panel, struct d53e6ea8966, panel);
87 }
88 
89 /* Table of gamma values provided in datasheet */
90 static u8 ams495qa01_gamma[NUM_GAMMA_LEVELS][GAMMA_TABLE_COUNT] = {
91 	{0x01, 0x79, 0x78, 0x8d, 0xd9, 0xdf, 0xd5, 0xcb, 0xcf, 0xc5,
92 	 0xe5, 0xe0, 0xe4, 0xdc, 0xb8, 0xd4, 0xfa, 0xed, 0xe6, 0x2f,
93 	 0x00, 0x2f},
94 	{0x01, 0x7d, 0x7c, 0x92, 0xd7, 0xdd, 0xd2, 0xcb, 0xd0, 0xc6,
95 	 0xe5, 0xe1, 0xe3, 0xda, 0xbd, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
96 	 0x00, 0x2f},
97 	{0x01, 0x7f, 0x7e, 0x95, 0xd7, 0xde, 0xd2, 0xcb, 0xcf, 0xc5,
98 	 0xe5, 0xe3, 0xe3, 0xda, 0xbf, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
99 	 0x00, 0x2f},
100 	{0x01, 0x82, 0x81, 0x99, 0xd6, 0xdd, 0xd1, 0xca, 0xcf, 0xc3,
101 	 0xe4, 0xe3, 0xe3, 0xda, 0xc2, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
102 	 0x00, 0x2f},
103 	{0x01, 0x84, 0x83, 0x9b, 0xd7, 0xde, 0xd2, 0xc8, 0xce, 0xc2,
104 	 0xe4, 0xe3, 0xe2, 0xd9, 0xc3, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
105 	 0x00, 0x2f},
106 	{0x01, 0x87, 0x86, 0x9f, 0xd6, 0xdd, 0xd1, 0xc7, 0xce, 0xc1,
107 	 0xe4, 0xe3, 0xe2, 0xd9, 0xc6, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
108 	 0x00, 0x2f},
109 	{0x01, 0x89, 0x89, 0xa2, 0xd5, 0xdb, 0xcf, 0xc8, 0xcf, 0xc2,
110 	 0xe3, 0xe3, 0xe1, 0xd9, 0xc7, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
111 	 0x00, 0x2f},
112 	{0x01, 0x8b, 0x8b, 0xa5, 0xd5, 0xdb, 0xcf, 0xc7, 0xce, 0xc0,
113 	 0xe3, 0xe3, 0xe1, 0xd8, 0xc7, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
114 	 0x00, 0x2f},
115 	{0x01, 0x8d, 0x8d, 0xa7, 0xd5, 0xdb, 0xcf, 0xc6, 0xce, 0xc0,
116 	 0xe4, 0xe4, 0xe1, 0xd7, 0xc8, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
117 	 0x00, 0x2f},
118 	{0x01, 0x8f, 0x8f, 0xaa, 0xd4, 0xdb, 0xce, 0xc6, 0xcd, 0xbf,
119 	 0xe3, 0xe3, 0xe1, 0xd7, 0xca, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
120 	 0x00, 0x2f},
121 	{0x01, 0x91, 0x91, 0xac, 0xd3, 0xda, 0xce, 0xc5, 0xcd, 0xbe,
122 	 0xe3, 0xe3, 0xe0, 0xd7, 0xca, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
123 	 0x00, 0x2f},
124 	{0x01, 0x93, 0x93, 0xaf, 0xd3, 0xda, 0xcd, 0xc5, 0xcd, 0xbe,
125 	 0xe2, 0xe3, 0xdf, 0xd6, 0xca, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
126 	 0x00, 0x2f},
127 	{0x01, 0x95, 0x95, 0xb1, 0xd2, 0xd9, 0xcc, 0xc4, 0xcd, 0xbe,
128 	 0xe2, 0xe3, 0xdf, 0xd7, 0xcc, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
129 	 0x00, 0x2f},
130 	{0x01, 0x99, 0x99, 0xb6, 0xd1, 0xd9, 0xcc, 0xc3, 0xcb, 0xbc,
131 	 0xe2, 0xe4, 0xdf, 0xd6, 0xcc, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
132 	 0x00, 0x2f},
133 	{0x01, 0x9c, 0x9c, 0xba, 0xd0, 0xd8, 0xcb, 0xc3, 0xcb, 0xbb,
134 	 0xe2, 0xe4, 0xdf, 0xd6, 0xce, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
135 	 0x00, 0x2f},
136 	{0x01, 0x9f, 0x9f, 0xbe, 0xcf, 0xd7, 0xc9, 0xc2, 0xcb, 0xbb,
137 	 0xe1, 0xe3, 0xde, 0xd6, 0xd0, 0xd3, 0xfa, 0xed, 0xe6, 0x2f,
138 	 0x00, 0x2f},
139 };
140 
141 /*
142  * Table of elvss values provided in datasheet and corresponds to
143  * gamma values.
144  */
145 static u8 ams495qa01_elvss[NUM_GAMMA_LEVELS] = {
146 	0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15, 0x15,
147 	0x15, 0x15, 0x14, 0x14, 0x13, 0x12,
148 };
149 
150 static int ams495qa01_update_gamma(struct mipi_dbi *dbi, int brightness)
151 {
152 	int tmp = brightness;
153 
154 	mipi_dbi_command_buf(dbi, MCS_SET_GAMMA, ams495qa01_gamma[tmp],
155 			     ARRAY_SIZE(ams495qa01_gamma[tmp]));
156 	mipi_dbi_command(dbi, MCS_SET_GAMMA, 0x00);
157 
158 	/* Undocumented command */
159 	mipi_dbi_command(dbi, 0x26, 0x00);
160 
161 	mipi_dbi_command(dbi, MCS_TEMP_SWIRE, ams495qa01_elvss[tmp]);
162 
163 	return 0;
164 }
165 
166 static void ams495qa01_panel_init(struct d53e6ea8966 *db)
167 {
168 	struct mipi_dbi *dbi = &db->dbi;
169 
170 	mipi_dbi_command(dbi, MCS_PASSWORD_0, 0x5a, 0x5a);
171 	mipi_dbi_command(dbi, MCS_PASSWORD_1, 0x5a, 0x5a);
172 
173 	/* Undocumented commands */
174 	mipi_dbi_command(dbi, 0xb0, 0x02);
175 	mipi_dbi_command(dbi, 0xf3, 0x3b);
176 
177 	mipi_dbi_command(dbi, MCS_ANALOG_PWR_CTL_0, 0x33, 0x42, 0x00, 0x08);
178 	mipi_dbi_command(dbi, MCS_ANALOG_PWR_CTL_1, 0x00, 0x06, 0x26, 0x35, 0x03);
179 
180 	/* Undocumented commands */
181 	mipi_dbi_command(dbi, 0xf6, 0x02);
182 	mipi_dbi_command(dbi, 0xc6, 0x0b, 0x00, 0x00, 0x3c, 0x00, 0x22,
183 			 0x00, 0x00, 0x00, 0x00);
184 
185 	mipi_dbi_command(dbi, MCS_GTCON_SET, 0x20);
186 	mipi_dbi_command(dbi, MCS_TEMP_SWIRE, 0x06, 0x06, 0x06, 0x06);
187 	mipi_dbi_command(dbi, MCS_ELVSS_ON, 0x07, 0x00, 0x10);
188 	mipi_dbi_command(dbi, MCS_GATELESS_SIGNAL_SET, 0x7f, 0x7a,
189 			 0x89, 0x67, 0x26, 0x38, 0x00, 0x00, 0x09,
190 			 0x67, 0x70, 0x88, 0x7a, 0x76, 0x05, 0x09,
191 			 0x23, 0x23, 0x23);
192 
193 	/* Undocumented commands */
194 	mipi_dbi_command(dbi, 0xb5, 0xff, 0xef, 0x35, 0x42, 0x0d, 0xd7,
195 			 0xff, 0x07, 0xff, 0xff, 0xfd, 0x00, 0x01,
196 			 0xff, 0x05, 0x12, 0x0f, 0xff, 0xff, 0xff,
197 			 0xff);
198 	mipi_dbi_command(dbi, 0xb4, 0x15);
199 	mipi_dbi_command(dbi, 0xb3, 0x00);
200 
201 	ams495qa01_update_gamma(dbi, MAX_BRIGHTNESS);
202 }
203 
204 static int d53e6ea8966_prepare(struct drm_panel *panel)
205 {
206 	struct d53e6ea8966 *db = to_d53e6ea8966(panel);
207 	int ret;
208 
209 	/* Power up */
210 	ret = regulator_enable(db->reg_vdd);
211 	if (ret) {
212 		dev_err(db->dev, "failed to enable vdd regulator: %d\n", ret);
213 		return ret;
214 	}
215 
216 	if (db->reg_elvdd) {
217 		ret = regulator_enable(db->reg_elvdd);
218 		if (ret) {
219 			dev_err(db->dev,
220 				"failed to enable elvdd regulator: %d\n", ret);
221 			regulator_disable(db->reg_vdd);
222 			return ret;
223 		}
224 	}
225 
226 	/* Enable */
227 	if (db->enable)
228 		gpiod_set_value_cansleep(db->enable, 1);
229 
230 	msleep(50);
231 
232 	/* Reset */
233 	gpiod_set_value_cansleep(db->reset, 1);
234 	usleep_range(1000, 5000);
235 	gpiod_set_value_cansleep(db->reset, 0);
236 	msleep(20);
237 
238 	db->panel_info->panel_init_seq(db);
239 
240 	return 0;
241 }
242 
243 static int d53e6ea8966_enable(struct drm_panel *panel)
244 {
245 	struct d53e6ea8966 *db = to_d53e6ea8966(panel);
246 	struct mipi_dbi *dbi = &db->dbi;
247 
248 	mipi_dbi_command(dbi, MIPI_DCS_EXIT_SLEEP_MODE);
249 	msleep(200);
250 	mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_ON);
251 	usleep_range(10000, 15000);
252 
253 	return 0;
254 }
255 
256 static int d53e6ea8966_disable(struct drm_panel *panel)
257 {
258 	struct d53e6ea8966 *db = to_d53e6ea8966(panel);
259 	struct mipi_dbi *dbi = &db->dbi;
260 
261 	mipi_dbi_command(dbi, MIPI_DCS_SET_DISPLAY_OFF);
262 	msleep(20);
263 	mipi_dbi_command(dbi, MIPI_DCS_ENTER_SLEEP_MODE);
264 	msleep(100);
265 
266 	return 0;
267 }
268 
269 static int d53e6ea8966_unprepare(struct drm_panel *panel)
270 {
271 	struct d53e6ea8966 *db = to_d53e6ea8966(panel);
272 
273 	if (db->enable)
274 		gpiod_set_value_cansleep(db->enable, 0);
275 
276 	gpiod_set_value_cansleep(db->reset, 1);
277 
278 	if (db->reg_elvdd)
279 		regulator_disable(db->reg_elvdd);
280 
281 	regulator_disable(db->reg_vdd);
282 	msleep(100);
283 
284 	return 0;
285 }
286 
287 static int d53e6ea8966_get_modes(struct drm_panel *panel,
288 				 struct drm_connector *connector)
289 {
290 	struct d53e6ea8966 *db = to_d53e6ea8966(panel);
291 	const struct d53e6ea8966_panel_info *panel_info = db->panel_info;
292 	struct drm_display_mode *mode;
293 	static const u32 bus_format = MEDIA_BUS_FMT_RGB888_1X24;
294 	unsigned int i;
295 
296 	for (i = 0; i < panel_info->num_modes; i++) {
297 		mode = drm_mode_duplicate(connector->dev,
298 					  &panel_info->display_modes[i]);
299 		if (!mode)
300 			return -ENOMEM;
301 
302 		drm_mode_set_name(mode);
303 		drm_mode_probed_add(connector, mode);
304 	}
305 
306 	connector->display_info.bpc = 8;
307 	connector->display_info.width_mm = panel_info->width_mm;
308 	connector->display_info.height_mm = panel_info->height_mm;
309 	connector->display_info.bus_flags = panel_info->bus_flags;
310 
311 	drm_display_info_set_bus_formats(&connector->display_info,
312 					 &bus_format, 1);
313 
314 	return 1;
315 }
316 
317 static const struct drm_panel_funcs d53e6ea8966_panel_funcs = {
318 	.disable = d53e6ea8966_disable,
319 	.enable = d53e6ea8966_enable,
320 	.get_modes = d53e6ea8966_get_modes,
321 	.prepare = d53e6ea8966_prepare,
322 	.unprepare = d53e6ea8966_unprepare,
323 };
324 
325 static int ams495qa01_set_brightness(struct backlight_device *bd)
326 {
327 	struct d53e6ea8966 *db = bl_get_data(bd);
328 	struct mipi_dbi *dbi = &db->dbi;
329 	int brightness = backlight_get_brightness(bd);
330 
331 	ams495qa01_update_gamma(dbi, brightness);
332 
333 	return 0;
334 }
335 
336 static const struct backlight_ops ams495qa01_backlight_ops = {
337 	.update_status	= ams495qa01_set_brightness,
338 };
339 
340 static int ams495qa01_backlight_register(struct d53e6ea8966 *db)
341 {
342 	struct backlight_properties props = {
343 		.type		= BACKLIGHT_RAW,
344 		.brightness	= MAX_BRIGHTNESS,
345 		.max_brightness = MAX_BRIGHTNESS,
346 	};
347 	struct device *dev = db->dev;
348 	int ret = 0;
349 
350 	db->bl_dev = devm_backlight_device_register(dev, "panel", dev, db,
351 						    &ams495qa01_backlight_ops,
352 						    &props);
353 	if (IS_ERR(db->bl_dev)) {
354 		ret = PTR_ERR(db->bl_dev);
355 		dev_err(dev, "error registering backlight device (%d)\n", ret);
356 	}
357 
358 	return ret;
359 }
360 
361 static int d53e6ea8966_probe(struct spi_device *spi)
362 {
363 	struct device *dev = &spi->dev;
364 	struct mipi_dsi_host *dsi_host;
365 	struct d53e6ea8966 *db;
366 	int ret;
367 	struct mipi_dsi_device_info info = {
368 		.type = "d53e6ea8966",
369 		.channel = 0,
370 		.node = NULL,
371 	};
372 
373 	db = devm_kzalloc(dev, sizeof(*db), GFP_KERNEL);
374 	if (!db)
375 		return -ENOMEM;
376 
377 	spi_set_drvdata(spi, db);
378 
379 	db->dev = dev;
380 
381 	db->panel_info = of_device_get_match_data(dev);
382 	if (!db->panel_info)
383 		return -EINVAL;
384 
385 	db->reg_vdd = devm_regulator_get(dev, "vdd");
386 	if (IS_ERR(db->reg_vdd))
387 		return dev_err_probe(dev, PTR_ERR(db->reg_vdd),
388 				     "Failed to get vdd supply\n");
389 
390 	db->reg_elvdd = devm_regulator_get_optional(dev, "elvdd");
391 	if (IS_ERR(db->reg_elvdd))
392 		db->reg_elvdd = NULL;
393 
394 	db->reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
395 	if (IS_ERR(db->reset)) {
396 		ret = PTR_ERR(db->reset);
397 		return dev_err_probe(dev, ret, "no RESET GPIO\n");
398 	}
399 
400 	db->enable = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_LOW);
401 	if (IS_ERR(db->enable)) {
402 		ret = PTR_ERR(db->enable);
403 		return dev_err_probe(dev, ret, "cannot get ENABLE GPIO\n");
404 	}
405 
406 	ret = mipi_dbi_spi_init(spi, &db->dbi, NULL);
407 	if (ret)
408 		return dev_err_probe(dev, ret, "MIPI DBI init failed\n");
409 
410 	dsi_host = drm_of_get_dsi_bus(dev);
411 	if (IS_ERR(dsi_host)) {
412 		ret = PTR_ERR(dsi_host);
413 		return dev_err_probe(dev, ret, "Error attaching DSI bus\n");
414 	}
415 
416 	db->dsi_dev = devm_mipi_dsi_device_register_full(dev, dsi_host, &info);
417 	if (IS_ERR(db->dsi_dev)) {
418 		dev_err(dev, "failed to register dsi device: %ld\n",
419 			PTR_ERR(db->dsi_dev));
420 		return PTR_ERR(db->dsi_dev);
421 	}
422 
423 	db->dsi_dev->lanes = 2;
424 	db->dsi_dev->format = MIPI_DSI_FMT_RGB888;
425 	db->dsi_dev->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
426 			  MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET;
427 
428 	drm_panel_init(&db->panel, dev, &d53e6ea8966_panel_funcs,
429 		       DRM_MODE_CONNECTOR_DSI);
430 
431 	if (db->panel_info->backlight_register) {
432 		ret = db->panel_info->backlight_register(db);
433 		if (ret < 0)
434 			return ret;
435 		db->panel.backlight = db->bl_dev;
436 	}
437 
438 	drm_panel_add(&db->panel);
439 
440 	ret = devm_mipi_dsi_attach(dev, db->dsi_dev);
441 	if (ret < 0) {
442 		dev_err(dev, "mipi_dsi_attach failed: %d\n", ret);
443 		drm_panel_remove(&db->panel);
444 		return ret;
445 	}
446 
447 	return 0;
448 }
449 
450 static void d53e6ea8966_remove(struct spi_device *spi)
451 {
452 	struct d53e6ea8966 *db = spi_get_drvdata(spi);
453 
454 	drm_panel_remove(&db->panel);
455 }
456 
457 static const struct drm_display_mode ams495qa01_modes[] = {
458 	{ /* 60hz */
459 		.clock = 33500,
460 		.hdisplay = 960,
461 		.hsync_start = 960 + 10,
462 		.hsync_end = 960 + 10 + 2,
463 		.htotal = 960 + 10 + 2 + 10,
464 		.vdisplay = 544,
465 		.vsync_start = 544 + 10,
466 		.vsync_end = 544 + 10 + 2,
467 		.vtotal = 544 + 10 + 2 + 10,
468 		.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
469 		.type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
470 		},
471 	{ /* 50hz */
472 		.clock = 27800,
473 		.hdisplay = 960,
474 		.hsync_start = 960 + 10,
475 		.hsync_end = 960 + 10 + 2,
476 		.htotal = 960 + 10 + 2 + 10,
477 		.vdisplay = 544,
478 		.vsync_start = 544 + 10,
479 		.vsync_end = 544 + 10 + 2,
480 		.vtotal = 544 + 10 + 2 + 10,
481 		.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
482 		.type = DRM_MODE_TYPE_DRIVER,
483 	},
484 };
485 
486 static const struct d53e6ea8966_panel_info ams495qa01_info = {
487 	.display_modes = ams495qa01_modes,
488 	.num_modes = ARRAY_SIZE(ams495qa01_modes),
489 	.width_mm = 117,
490 	.height_mm = 74,
491 	.bus_flags = DRM_BUS_FLAG_DE_LOW | DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE,
492 	.panel_init_seq = ams495qa01_panel_init,
493 	.backlight_register = ams495qa01_backlight_register,
494 };
495 
496 static const struct of_device_id d53e6ea8966_match[] = {
497 	{ .compatible = "samsung,ams495qa01", .data = &ams495qa01_info },
498 	{ /* sentinel */ },
499 };
500 MODULE_DEVICE_TABLE(of, d53e6ea8966_match);
501 
502 static const struct spi_device_id d53e6ea8966_ids[] = {
503 	{ "ams495qa01", 0 },
504 	{ /* sentinel */ },
505 };
506 MODULE_DEVICE_TABLE(spi, d53e6ea8966_ids);
507 
508 static struct spi_driver d53e6ea8966_driver = {
509 	.driver		= {
510 		.name	= "d53e6ea8966-panel",
511 		.of_match_table = d53e6ea8966_match,
512 	},
513 	.id_table	= d53e6ea8966_ids,
514 	.probe		= d53e6ea8966_probe,
515 	.remove		= d53e6ea8966_remove,
516 };
517 module_spi_driver(d53e6ea8966_driver);
518 
519 MODULE_AUTHOR("Chris Morgan <macromorgan@hotmail.com>");
520 MODULE_DESCRIPTION("Magnachip d53e6ea8966 panel driver");
521 MODULE_LICENSE("GPL");
522