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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Samsung AMS427AP24 panel with S6E88A0 controller
4 * Copyright (c) 2024 Jakob Hauser <jahau@rocketmail.com>
5 */
6
7#include <linux/backlight.h>
8#include <linux/delay.h>
9#include <linux/gpio/consumer.h>
10#include <linux/module.h>
11#include <linux/regulator/consumer.h>
12
13#include <video/mipi_display.h>
14
15#include <drm/drm_mipi_dsi.h>
16#include <drm/drm_modes.h>
17#include <drm/drm_panel.h>
18#include <drm/drm_probe_helper.h>
19
20#define NUM_STEPS_CANDELA 54
21#define NUM_STEPS_AID 39
22#define NUM_STEPS_ELVSS 17
23
24/* length of the payload data, thereof fixed and variable */
25#define FIX_LEN_AID 4
26#define FIX_LEN_ELVSS 2
27#define FIX_LEN_GAMMA 1
28#define VAR_LEN_AID 2
29#define VAR_LEN_ELVSS 1
30#define VAR_LEN_GAMMA 33
31#define LEN_AID (FIX_LEN_AID + VAR_LEN_AID)
32#define LEN_ELVSS (FIX_LEN_ELVSS + VAR_LEN_ELVSS)
33#define LEN_GAMMA (FIX_LEN_GAMMA + VAR_LEN_GAMMA)
34
35struct s6e88a0_ams427ap24 {
36 struct drm_panel panel;
37 struct backlight_device *bl_dev;
38 struct mipi_dsi_device *dsi;
39 struct regulator_bulk_data *supplies;
40 struct gpio_desc *reset_gpio;
41 bool flip_horizontal;
42};
43
44static const struct regulator_bulk_data s6e88a0_ams427ap24_supplies[] = {
45 { .supply = "vdd3" },
46 { .supply = "vci" },
47};
48
49static inline
50struct s6e88a0_ams427ap24 *to_s6e88a0_ams427ap24(struct drm_panel *panel)
51{
52 return container_of(panel, struct s6e88a0_ams427ap24, panel);
53}
54
55enum candela {
56 CANDELA_10CD, /* 0 */
57 CANDELA_11CD,
58 CANDELA_12CD,
59 CANDELA_13CD,
60 CANDELA_14CD,
61 CANDELA_15CD,
62 CANDELA_16CD,
63 CANDELA_17CD,
64 CANDELA_19CD,
65 CANDELA_20CD,
66 CANDELA_21CD,
67 CANDELA_22CD,
68 CANDELA_24CD,
69 CANDELA_25CD,
70 CANDELA_27CD,
71 CANDELA_29CD,
72 CANDELA_30CD,
73 CANDELA_32CD,
74 CANDELA_34CD,
75 CANDELA_37CD,
76 CANDELA_39CD,
77 CANDELA_41CD,
78 CANDELA_44CD,
79 CANDELA_47CD,
80 CANDELA_50CD,
81 CANDELA_53CD,
82 CANDELA_56CD,
83 CANDELA_60CD,
84 CANDELA_64CD,
85 CANDELA_68CD,
86 CANDELA_72CD,
87 CANDELA_77CD,
88 CANDELA_82CD,
89 CANDELA_87CD,
90 CANDELA_93CD,
91 CANDELA_98CD,
92 CANDELA_105CD,
93 CANDELA_111CD,
94 CANDELA_119CD,
95 CANDELA_126CD,
96 CANDELA_134CD,
97 CANDELA_143CD,
98 CANDELA_152CD,
99 CANDELA_162CD,
100 CANDELA_172CD,
101 CANDELA_183CD,
102 CANDELA_195CD,
103 CANDELA_207CD,
104 CANDELA_220CD,
105 CANDELA_234CD,
106 CANDELA_249CD,
107 CANDELA_265CD,
108 CANDELA_282CD,
109 CANDELA_300CD, /* 53 */
110};
111
112static const int s6e88a0_ams427ap24_br_to_cd[NUM_STEPS_CANDELA] = {
113 /* columns: brightness from, brightness till, candela */
114 /* 0 */ 10, /* 10CD */
115 /* 11 */ 11, /* 11CD */
116 /* 12 */ 12, /* 12CD */
117 /* 13 */ 13, /* 13CD */
118 /* 14 */ 14, /* 14CD */
119 /* 15 */ 15, /* 15CD */
120 /* 16 */ 16, /* 16CD */
121 /* 17 */ 17, /* 17CD */
122 /* 18 */ 18, /* 19CD */
123 /* 19 */ 19, /* 20CD */
124 /* 20 */ 20, /* 21CD */
125 /* 21 */ 21, /* 22CD */
126 /* 22 */ 22, /* 24CD */
127 /* 23 */ 23, /* 25CD */
128 /* 24 */ 24, /* 27CD */
129 /* 25 */ 25, /* 29CD */
130 /* 26 */ 26, /* 30CD */
131 /* 27 */ 27, /* 32CD */
132 /* 28 */ 28, /* 34CD */
133 /* 29 */ 29, /* 37CD */
134 /* 30 */ 30, /* 39CD */
135 /* 31 */ 32, /* 41CD */
136 /* 33 */ 34, /* 44CD */
137 /* 35 */ 36, /* 47CD */
138 /* 37 */ 38, /* 50CD */
139 /* 39 */ 40, /* 53CD */
140 /* 41 */ 43, /* 56CD */
141 /* 44 */ 46, /* 60CD */
142 /* 47 */ 49, /* 64CD */
143 /* 50 */ 52, /* 68CD */
144 /* 53 */ 56, /* 72CD */
145 /* 57 */ 59, /* 77CD */
146 /* 60 */ 63, /* 82CD */
147 /* 64 */ 67, /* 87CD */
148 /* 68 */ 71, /* 93CD */
149 /* 72 */ 76, /* 98CD */
150 /* 77 */ 80, /* 105CD */
151 /* 81 */ 86, /* 111CD */
152 /* 87 */ 91, /* 119CD */
153 /* 92 */ 97, /* 126CD */
154 /* 98 */ 104, /* 134CD */
155 /* 105 */ 110, /* 143CD */
156 /* 111 */ 118, /* 152CD */
157 /* 119 */ 125, /* 162CD */
158 /* 126 */ 133, /* 172CD */
159 /* 134 */ 142, /* 183CD */
160 /* 143 */ 150, /* 195CD */
161 /* 151 */ 160, /* 207CD */
162 /* 161 */ 170, /* 220CD */
163 /* 171 */ 181, /* 234CD */
164 /* 182 */ 205, /* 249CD */
165 /* 206 */ 234, /* 265CD */
166 /* 235 */ 254, /* 282CD */
167 /* 255 */ 255, /* 300CD */
168};
169
170static const u8 s6e88a0_ams427ap24_aid[NUM_STEPS_AID][VAR_LEN_AID] = {
171 { 0x03, 0x77 }, /* AOR 90.9%, 10CD */
172 { 0x03, 0x73 }, /* AOR 90.5%, 11CD */
173 { 0x03, 0x69 }, /* AOR 89.4%, 12CD */
174 { 0x03, 0x65 }, /* AOR 89.0%, 13CD */
175 { 0x03, 0x61 }, /* AOR 88.6%, 14CD */
176 { 0x03, 0x55 }, /* AOR 87.4%, 15CD */
177 { 0x03, 0x50 }, /* AOR 86.9%, 16CD */
178 { 0x03, 0x45 }, /* AOR 85.8%, 17CD */
179 { 0x03, 0x35 }, /* AOR 84.1%, 19CD */
180 { 0x03, 0x27 }, /* AOR 82.7%, 20CD */
181 { 0x03, 0x23 }, /* AOR 82.3%, 21CD */
182 { 0x03, 0x17 }, /* AOR 81.0%, 22CD */
183 { 0x03, 0x11 }, /* AOR 80.4%, 24CD */
184 { 0x03, 0x04 }, /* AOR 79.1%, 25CD */
185 { 0x02, 0xf4 }, /* AOR 77.5%, 27CD */
186 { 0x02, 0xe3 }, /* AOR 75.7%, 29CD */
187 { 0x02, 0xd7 }, /* AOR 74.5%, 30CD */
188 { 0x02, 0xc6 }, /* AOR 72.7%, 32CD */
189 { 0x02, 0xb7 }, /* AOR 71.2%, 34CD */
190 { 0x02, 0xa1 }, /* AOR 69.0%, 37CD */
191 { 0x02, 0x91 }, /* AOR 67.3%, 39CD */
192 { 0x02, 0x78 }, /* AOR 64.8%, 41CD */
193 { 0x02, 0x62 }, /* AOR 62.5%, 44CD */
194 { 0x02, 0x45 }, /* AOR 59.5%, 47CD */
195 { 0x02, 0x30 }, /* AOR 57.4%, 50CD */
196 { 0x02, 0x13 }, /* AOR 54.4%, 53CD */
197 { 0x01, 0xf5 }, /* AOR 51.3%, 56CD */
198 { 0x01, 0xd3 }, /* AOR 47.8%, 60CD */
199 { 0x01, 0xb1 }, /* AOR 44.4%, 64CD */
200 { 0x01, 0x87 }, /* AOR 40.1%, 68CD */
201 { 0x01, 0x63 }, /* AOR 36.6%, 72CD */
202 { 0x01, 0x35 }, /* AOR 31.7%, 77CD */
203 { 0x01, 0x05 }, /* AOR 26.9%, 82CD */
204 { 0x00, 0xd5 }, /* AOR 21.8%, 87CD */
205 { 0x00, 0xa1 }, /* AOR 16.5%, 93CD */
206 { 0x00, 0x6f }, /* AOR 11.4%, 98CD */
207 { 0x00, 0x31 }, /* AOR 5.0%, 105CD */
208 { 0x01, 0x86 }, /* AOR 40.0%, 111CD ~ 172CD */
209 { 0x00, 0x08 }, /* AOR 0.6%, 183CD ~ 300CD */
210};
211
212static const u8 s6e88a0_ams427ap24_elvss[NUM_STEPS_ELVSS][VAR_LEN_ELVSS] = {
213 { 0x14 }, /* 10CD ~ 111CD */
214 { 0x13 }, /* 119CD */
215 { 0x12 }, /* 126CD */
216 { 0x12 }, /* 134CD */
217 { 0x11 }, /* 143CD */
218 { 0x10 }, /* 152CD */
219 { 0x0f }, /* 162CD */
220 { 0x0e }, /* 172CD */
221 { 0x11 }, /* 183CD */
222 { 0x11 }, /* 195CD */
223 { 0x10 }, /* 207CD */
224 { 0x0f }, /* 220CD */
225 { 0x0f }, /* 234CD */
226 { 0x0e }, /* 249CD */
227 { 0x0d }, /* 265CD */
228 { 0x0c }, /* 282CD */
229 { 0x0b }, /* 300CD */
230};
231
232static const u8 s6e88a0_ams427ap24_gamma[NUM_STEPS_CANDELA][VAR_LEN_GAMMA] = {
233 /* 10CD */
234 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x8a, 0x8c, 0x8b,
235 0x8c, 0x87, 0x89, 0x89, 0x88, 0x87, 0x8c, 0x80, 0x82, 0x88, 0x7b,
236 0x72, 0x8c, 0x60, 0x68, 0x8c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
237 /* 11CD */
238 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x8a, 0x8c, 0x8b,
239 0x8c, 0x87, 0x89, 0x89, 0x88, 0x87, 0x8c, 0x80, 0x82, 0x88, 0x7b,
240 0x72, 0x8c, 0x60, 0x68, 0x8c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
241 /* 12CD */
242 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x8a, 0x8b, 0x8b,
243 0x8c, 0x88, 0x89, 0x8a, 0x88, 0x87, 0x8c, 0x81, 0x82, 0x87, 0x7a,
244 0x72, 0x8b, 0x60, 0x68, 0x8c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
245 /* 13CD */
246 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x8a, 0x8b, 0x8b,
247 0x8c, 0x88, 0x89, 0x8a, 0x88, 0x87, 0x8c, 0x81, 0x82, 0x87, 0x7a,
248 0x72, 0x8b, 0x61, 0x69, 0x8c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
249 /* 14CD */
250 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x89, 0x8c, 0x8b,
251 0x8c, 0x88, 0x89, 0x8a, 0x87, 0x86, 0x8a, 0x82, 0x82, 0x87, 0x79,
252 0x71, 0x89, 0x63, 0x6c, 0x8e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
253 /* 15CD */
254 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x8a, 0x8c, 0x8c,
255 0x8c, 0x86, 0x87, 0x88, 0x85, 0x85, 0x8a, 0x83, 0x83, 0x88, 0x78,
256 0x72, 0x89, 0x64, 0x6c, 0x8e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
257 /* 16CD */
258 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x89, 0x8c, 0x8b,
259 0x8c, 0x86, 0x88, 0x88, 0x86, 0x86, 0x8a, 0x84, 0x84, 0x88, 0x78,
260 0x72, 0x89, 0x5d, 0x67, 0x8b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
261 /* 17CD */
262 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x89, 0x8b, 0x8b,
263 0x8b, 0x87, 0x89, 0x89, 0x86, 0x86, 0x8a, 0x84, 0x83, 0x87, 0x78,
264 0x73, 0x89, 0x64, 0x6e, 0x8e, 0x38, 0x32, 0x24, 0x00, 0x00, 0x00 },
265 /* 19CD */
266 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x89, 0x8b, 0x8b,
267 0x8b, 0x87, 0x89, 0x89, 0x86, 0x86, 0x89, 0x84, 0x84, 0x87, 0x77,
268 0x72, 0x88, 0x65, 0x6f, 0x8e, 0x38, 0x32, 0x24, 0x00, 0x00, 0x00 },
269 /* 20CD */
270 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x89, 0x8b, 0x8b,
271 0x8b, 0x88, 0x89, 0x89, 0x85, 0x85, 0x88, 0x82, 0x83, 0x85, 0x79,
272 0x73, 0x88, 0x65, 0x6f, 0x8e, 0x38, 0x32, 0x24, 0x00, 0x00, 0x00 },
273 /* 21CD */
274 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x89, 0x8b, 0x8b,
275 0x8b, 0x88, 0x89, 0x89, 0x85, 0x85, 0x88, 0x82, 0x83, 0x85, 0x79,
276 0x74, 0x88, 0x65, 0x6f, 0x8e, 0x38, 0x32, 0x24, 0x00, 0x00, 0x00 },
277 /* 22CD */
278 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x89, 0x8c, 0x8b,
279 0x8c, 0x86, 0x88, 0x87, 0x86, 0x86, 0x89, 0x82, 0x83, 0x85, 0x7c,
280 0x75, 0x87, 0x65, 0x6f, 0x8e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
281 /* 24CD */
282 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x89, 0x8c, 0x8b,
283 0x8c, 0x86, 0x88, 0x87, 0x86, 0x86, 0x89, 0x82, 0x83, 0x85, 0x7c,
284 0x76, 0x86, 0x66, 0x6f, 0x8e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
285 /* 25CD */
286 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x89, 0x8b, 0x8b,
287 0x8b, 0x86, 0x89, 0x88, 0x87, 0x87, 0x89, 0x82, 0x82, 0x84, 0x7f,
288 0x7a, 0x89, 0x6b, 0x73, 0x8f, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
289 /* 27CD */
290 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x89, 0x8b, 0x8b,
291 0x8b, 0x86, 0x89, 0x88, 0x87, 0x87, 0x89, 0x82, 0x82, 0x84, 0x7f,
292 0x7a, 0x89, 0x6b, 0x73, 0x8f, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
293 /* 29CD */
294 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x89, 0x8b, 0x8b,
295 0x8b, 0x86, 0x89, 0x88, 0x85, 0x84, 0x87, 0x84, 0x85, 0x86, 0x80,
296 0x7b, 0x88, 0x6a, 0x73, 0x8f, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
297 /* 30CD */
298 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x89, 0x8b, 0x8b,
299 0x8b, 0x86, 0x89, 0x88, 0x85, 0x84, 0x87, 0x84, 0x85, 0x86, 0x80,
300 0x7b, 0x88, 0x6a, 0x73, 0x8f, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
301 /* 32CD */
302 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x89, 0x8b, 0x8b,
303 0x8b, 0x86, 0x89, 0x88, 0x85, 0x84, 0x87, 0x84, 0x85, 0x86, 0x80,
304 0x7b, 0x88, 0x6a, 0x73, 0x8f, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
305 /* 34CD */
306 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8c, 0x8a, 0x89, 0x8b, 0x8b,
307 0x8b, 0x86, 0x89, 0x88, 0x85, 0x84, 0x87, 0x83, 0x84, 0x84, 0x7f,
308 0x79, 0x86, 0x6c, 0x76, 0x91, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
309 /* 37CD */
310 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8b, 0x89, 0x89, 0x8b, 0x8b,
311 0x8b, 0x86, 0x88, 0x88, 0x87, 0x86, 0x87, 0x83, 0x84, 0x84, 0x7f,
312 0x79, 0x86, 0x6c, 0x76, 0x90, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
313 /* 39CD */
314 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8b, 0x89, 0x89, 0x8b, 0x8b,
315 0x8b, 0x86, 0x88, 0x87, 0x84, 0x84, 0x86, 0x83, 0x85, 0x85, 0x80,
316 0x79, 0x85, 0x6c, 0x76, 0x90, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
317 /* 41CD */
318 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8b, 0x89, 0x89, 0x8b, 0x8b,
319 0x8b, 0x86, 0x88, 0x87, 0x84, 0x84, 0x86, 0x81, 0x84, 0x83, 0x7f,
320 0x79, 0x84, 0x6e, 0x79, 0x93, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
321 /* 44CD */
322 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8b, 0x89, 0x89, 0x8b, 0x8b,
323 0x8b, 0x86, 0x88, 0x87, 0x84, 0x84, 0x86, 0x81, 0x84, 0x83, 0x7f,
324 0x79, 0x84, 0x6e, 0x79, 0x92, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
325 /* 47CD */
326 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8b, 0x89, 0x89, 0x8b, 0x8b,
327 0x8b, 0x86, 0x88, 0x87, 0x84, 0x85, 0x86, 0x81, 0x84, 0x83, 0x7f,
328 0x79, 0x83, 0x6f, 0x79, 0x91, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
329 /* 50CD */
330 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8b, 0x89, 0x89, 0x8b, 0x8b,
331 0x8b, 0x86, 0x88, 0x87, 0x84, 0x85, 0x86, 0x82, 0x84, 0x83, 0x7f,
332 0x79, 0x83, 0x6f, 0x79, 0x90, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
333 /* 53CD */
334 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8b, 0x89, 0x89, 0x8b, 0x8b,
335 0x8b, 0x86, 0x88, 0x87, 0x83, 0x83, 0x85, 0x84, 0x85, 0x85, 0x7f,
336 0x79, 0x83, 0x70, 0x79, 0x8f, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
337 /* 56CD */
338 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8b, 0x89, 0x89, 0x8b, 0x8a,
339 0x8a, 0x87, 0x89, 0x87, 0x83, 0x83, 0x85, 0x84, 0x85, 0x84, 0x7f,
340 0x79, 0x82, 0x70, 0x7a, 0x8e, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
341 /* 60CD */
342 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8b, 0x89, 0x89, 0x8b, 0x8a,
343 0x8a, 0x87, 0x89, 0x87, 0x83, 0x83, 0x85, 0x84, 0x85, 0x84, 0x7e,
344 0x79, 0x82, 0x71, 0x7a, 0x8d, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
345 /* 64CD */
346 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8b, 0x89, 0x89, 0x8b, 0x8a,
347 0x8a, 0x86, 0x88, 0x86, 0x84, 0x84, 0x86, 0x82, 0x83, 0x82, 0x80,
348 0x7a, 0x84, 0x71, 0x7a, 0x8c, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
349 /* 68CD */
350 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8a, 0x89, 0x89, 0x8c, 0x8a,
351 0x8a, 0x86, 0x88, 0x86, 0x84, 0x84, 0x86, 0x82, 0x84, 0x82, 0x81,
352 0x7b, 0x83, 0x72, 0x7b, 0x8b, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
353 /* 72CD */
354 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8a, 0x89, 0x89, 0x8c, 0x8a,
355 0x8a, 0x86, 0x88, 0x86, 0x85, 0x85, 0x86, 0x82, 0x84, 0x82, 0x81,
356 0x7b, 0x83, 0x72, 0x7c, 0x8a, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
357 /* 77CD */
358 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8a, 0x89, 0x89, 0x8c, 0x8a,
359 0x8a, 0x85, 0x87, 0x85, 0x85, 0x87, 0x87, 0x82, 0x84, 0x82, 0x81,
360 0x7c, 0x82, 0x72, 0x7c, 0x89, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
361 /* 82CD */
362 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8a, 0x89, 0x89, 0x8c, 0x8a,
363 0x8a, 0x85, 0x87, 0x85, 0x85, 0x87, 0x87, 0x82, 0x84, 0x82, 0x81,
364 0x7c, 0x82, 0x73, 0x7c, 0x88, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
365 /* 87CD */
366 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8a, 0x89, 0x89, 0x8c, 0x8a,
367 0x8a, 0x85, 0x87, 0x85, 0x84, 0x84, 0x86, 0x80, 0x84, 0x81, 0x80,
368 0x7a, 0x82, 0x76, 0x7f, 0x89, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
369 /* 93CD */
370 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8a, 0x89, 0x89, 0x8b, 0x8a,
371 0x8a, 0x86, 0x87, 0x85, 0x84, 0x85, 0x86, 0x80, 0x84, 0x80, 0x80,
372 0x7a, 0x82, 0x76, 0x80, 0x88, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
373 /* 98CD */
374 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x8a, 0x89, 0x89, 0x8b, 0x8a,
375 0x8a, 0x86, 0x87, 0x85, 0x85, 0x85, 0x86, 0x80, 0x84, 0x80, 0x80,
376 0x7a, 0x82, 0x76, 0x80, 0x88, 0x33, 0x2f, 0x22, 0x00, 0x00, 0x00 },
377 /* 105CD */
378 { 0x00, 0xc8, 0x00, 0xc4, 0x00, 0xc5, 0x89, 0x88, 0x88, 0x8b, 0x8a,
379 0x8a, 0x84, 0x87, 0x85, 0x85, 0x85, 0x85, 0x80, 0x84, 0x80, 0x7f,
380 0x79, 0x81, 0x71, 0x7d, 0x87, 0x38, 0x32, 0x24, 0x00, 0x00, 0x00 },
381 /* 111CD */
382 { 0x00, 0xdf, 0x00, 0xde, 0x00, 0xde, 0x85, 0x85, 0x84, 0x87, 0x86,
383 0x87, 0x85, 0x86, 0x85, 0x83, 0x83, 0x83, 0x81, 0x82, 0x82, 0x80,
384 0x7d, 0x82, 0x75, 0x7f, 0x86, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
385 /* 119CD */
386 { 0x00, 0xe3, 0x00, 0xe1, 0x00, 0xe2, 0x85, 0x85, 0x84, 0x86, 0x85,
387 0x85, 0x84, 0x85, 0x84, 0x83, 0x83, 0x83, 0x82, 0x82, 0x82, 0x7e,
388 0x7b, 0x81, 0x75, 0x7f, 0x86, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
389 /* 126CD */
390 { 0x00, 0xe6, 0x00, 0xe5, 0x00, 0xe5, 0x85, 0x84, 0x84, 0x85, 0x85,
391 0x85, 0x84, 0x84, 0x84, 0x82, 0x83, 0x83, 0x80, 0x81, 0x81, 0x80,
392 0x7f, 0x83, 0x73, 0x7c, 0x84, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
393 /* 134CD */
394 { 0x00, 0xe9, 0x00, 0xe8, 0x00, 0xe8, 0x84, 0x84, 0x83, 0x85, 0x85,
395 0x85, 0x84, 0x84, 0x83, 0x81, 0x82, 0x82, 0x81, 0x81, 0x81, 0x7f,
396 0x7d, 0x81, 0x73, 0x7c, 0x83, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
397 /* 143CD */
398 { 0x00, 0xed, 0x00, 0xec, 0x00, 0xec, 0x84, 0x83, 0x83, 0x84, 0x84,
399 0x84, 0x84, 0x84, 0x83, 0x82, 0x83, 0x83, 0x81, 0x80, 0x81, 0x7f,
400 0x7e, 0x81, 0x70, 0x79, 0x81, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
401 /* 152CD */
402 { 0x00, 0xf0, 0x00, 0xf0, 0x00, 0xf0, 0x83, 0x83, 0x83, 0x83, 0x83,
403 0x83, 0x84, 0x84, 0x83, 0x81, 0x81, 0x81, 0x80, 0x80, 0x81, 0x80,
404 0x80, 0x82, 0x6f, 0x78, 0x7f, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
405 /* 162CD */
406 { 0x00, 0xf4, 0x00, 0xf3, 0x00, 0xf4, 0x83, 0x83, 0x83, 0x83, 0x83,
407 0x83, 0x82, 0x81, 0x81, 0x81, 0x81, 0x81, 0x80, 0x80, 0x81, 0x80,
408 0x7f, 0x82, 0x6f, 0x78, 0x7f, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
409 /* 172CD */
410 { 0x00, 0xf8, 0x00, 0xf8, 0x00, 0xf8, 0x82, 0x82, 0x82, 0x82, 0x82,
411 0x82, 0x82, 0x81, 0x81, 0x80, 0x81, 0x80, 0x80, 0x80, 0x81, 0x81,
412 0x80, 0x83, 0x6d, 0x76, 0x7d, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
413 /* 183CD */
414 { 0x00, 0xe0, 0x00, 0xdf, 0x00, 0xdf, 0x84, 0x84, 0x83, 0x86, 0x86,
415 0x86, 0x83, 0x84, 0x83, 0x82, 0x82, 0x82, 0x81, 0x83, 0x81, 0x81,
416 0x7e, 0x81, 0x80, 0x82, 0x84, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
417 /* 195CD */
418 { 0x00, 0xe4, 0x00, 0xe3, 0x00, 0xe3, 0x84, 0x83, 0x83, 0x85, 0x85,
419 0x85, 0x83, 0x84, 0x83, 0x81, 0x82, 0x82, 0x82, 0x83, 0x81, 0x81,
420 0x80, 0x82, 0x7d, 0x7f, 0x81, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
421 /* 207CD */
422 { 0x00, 0xe7, 0x00, 0xe6, 0x00, 0xe6, 0x83, 0x82, 0x82, 0x85, 0x85,
423 0x85, 0x82, 0x83, 0x83, 0x82, 0x82, 0x82, 0x80, 0x81, 0x80, 0x81,
424 0x80, 0x82, 0x7d, 0x7f, 0x81, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
425 /* 220CD */
426 { 0x00, 0xeb, 0x00, 0xea, 0x00, 0xea, 0x83, 0x83, 0x82, 0x84, 0x84,
427 0x84, 0x82, 0x83, 0x82, 0x81, 0x81, 0x82, 0x81, 0x82, 0x81, 0x80,
428 0x7e, 0x80, 0x7d, 0x7f, 0x81, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
429 /* 234CD */
430 { 0x00, 0xef, 0x00, 0xee, 0x00, 0xee, 0x83, 0x82, 0x82, 0x83, 0x83,
431 0x83, 0x82, 0x82, 0x82, 0x81, 0x81, 0x81, 0x80, 0x80, 0x80, 0x80,
432 0x80, 0x81, 0x7b, 0x7c, 0x7f, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
433 /* 249CD */
434 { 0x00, 0xf3, 0x00, 0xf2, 0x00, 0xf2, 0x82, 0x81, 0x81, 0x83, 0x83,
435 0x83, 0x82, 0x82, 0x82, 0x81, 0x81, 0x81, 0x80, 0x81, 0x80, 0x7f,
436 0x7e, 0x7f, 0x7b, 0x7c, 0x7f, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
437 /* 265CD */
438 { 0x00, 0xf7, 0x00, 0xf7, 0x00, 0xf7, 0x81, 0x81, 0x80, 0x82, 0x82,
439 0x82, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x81, 0x80, 0x7f,
440 0x7e, 0x7f, 0x7b, 0x7c, 0x7f, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
441 /* 282CD */
442 { 0x00, 0xfb, 0x00, 0xfb, 0x00, 0xfb, 0x80, 0x80, 0x80, 0x81, 0x81,
443 0x81, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x7f, 0x7f, 0x7f, 0x7f,
444 0x7f, 0x7f, 0x78, 0x79, 0x7d, 0x85, 0x85, 0x82, 0x00, 0x00, 0x00 },
445 /* 300CD */
446 { 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80,
447 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
448 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00 },
449};
450
451static int s6e88a0_ams427ap24_set_brightness(struct backlight_device *bd)
452{
453 struct s6e88a0_ams427ap24 *ctx = bl_get_data(bd);
454 struct mipi_dsi_device *dsi = ctx->dsi;
455 struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
456 struct device *dev = &dsi->dev;
457 int brightness = bd->props.brightness;
458 int candela_enum;
459 u8 b2[LEN_AID] = { 0xb2, 0x40, 0x08, 0x20, 0x00, 0x00 };
460 u8 b6[LEN_ELVSS] = { 0xb6, 0x28, 0x00 };
461 u8 ca[LEN_GAMMA];
462
463 /* get candela enum from brightness */
464 for (candela_enum = 0; candela_enum < NUM_STEPS_CANDELA; candela_enum++)
465 if (brightness <= s6e88a0_ams427ap24_br_to_cd[candela_enum])
466 break;
467
468 /* get aid */
469 switch (candela_enum) {
470 case CANDELA_10CD ... CANDELA_105CD:
471 memcpy(&b2[FIX_LEN_AID],
472 s6e88a0_ams427ap24_aid[candela_enum],
473 VAR_LEN_AID);
474 break;
475 case CANDELA_111CD ... CANDELA_172CD:
476 memcpy(&b2[FIX_LEN_AID],
477 s6e88a0_ams427ap24_aid[CANDELA_111CD],
478 VAR_LEN_AID);
479 break;
480 case CANDELA_183CD ... CANDELA_300CD:
481 memcpy(&b2[FIX_LEN_AID],
482 s6e88a0_ams427ap24_aid[CANDELA_111CD + 1],
483 VAR_LEN_AID);
484 break;
485 default:
486 dev_err(dev, "Failed to get aid data\n");
487 return -EINVAL;
488 }
489
490 /* get elvss */
491 if (candela_enum <= CANDELA_111CD) {
492 memcpy(&b6[FIX_LEN_ELVSS],
493 s6e88a0_ams427ap24_elvss[0],
494 VAR_LEN_ELVSS);
495 } else {
496 memcpy(&b6[FIX_LEN_ELVSS],
497 s6e88a0_ams427ap24_elvss[candela_enum - CANDELA_111CD],
498 VAR_LEN_ELVSS);
499 }
500
501 /* get gamma */
502 ca[0] = 0xca;
503 memcpy(&ca[FIX_LEN_GAMMA],
504 s6e88a0_ams427ap24_gamma[candela_enum],
505 VAR_LEN_GAMMA);
506
507 /* write data */
508 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x5a, 0x5a); // level 1 key on
509 mipi_dsi_dcs_write_buffer_multi(&dsi_ctx, b2, ARRAY_SIZE(b2)); // set aid
510 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0x55, 0x00); // acl off
511 mipi_dsi_dcs_write_buffer_multi(&dsi_ctx, b6, ARRAY_SIZE(b6)); // set elvss
512 mipi_dsi_dcs_write_buffer_multi(&dsi_ctx, ca, ARRAY_SIZE(ca)); // set gamma
513 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf7, 0x03); // gamma update
514 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5); // level 1 key off
515
516 return dsi_ctx.accum_err;
517}
518
519static void s6e88a0_ams427ap24_reset(struct s6e88a0_ams427ap24 *ctx)
520{
521 gpiod_set_value_cansleep(ctx->reset_gpio, 0);
522 usleep_range(5000, 6000);
523 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
524 usleep_range(1000, 2000);
525 gpiod_set_value_cansleep(ctx->reset_gpio, 0);
526 usleep_range(18000, 19000);
527}
528
529static int s6e88a0_ams427ap24_on(struct s6e88a0_ams427ap24 *ctx)
530{
531 struct mipi_dsi_device *dsi = ctx->dsi;
532 struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
533 struct device *dev = &dsi->dev;
534 int ret;
535
536 dsi->mode_flags |= MIPI_DSI_MODE_LPM;
537
538 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0x5a, 0x5a); // level 1 key on
539 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfc, 0x5a, 0x5a); // level 2 key on
540 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x11); // src latch set global 1
541 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfd, 0x11); // src latch set 1
542 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x13); // src latch set global 2
543 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfd, 0x18); // src latch set 2
544 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb0, 0x02); // avdd set 1
545 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xb8, 0x30); // avdd set 2
546
547 mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
548 mipi_dsi_msleep(&dsi_ctx, 20);
549
550 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf1, 0x5a, 0x5a); // level 3 key on
551 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xcc, 0x4c); // pixel clock divider pol.
552 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf2, 0x03, 0x0d); // unknown
553 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf1, 0xa5, 0xa5); // level 3 key off
554
555 if (ctx->flip_horizontal)
556 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xcb, 0x0e); // flip display
557
558 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf0, 0xa5, 0xa5); // level 1 key off
559 mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xfc, 0xa5, 0xa5); // level 2 key off
560
561 ret = s6e88a0_ams427ap24_set_brightness(ctx->bl_dev);
562 if (ret < 0) {
563 dev_err(dev, "Failed to set brightness: %d\n", ret);
564 return ret;
565 }
566
567 mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
568
569 return dsi_ctx.accum_err;
570}
571
572static int s6e88a0_ams427ap24_off(struct s6e88a0_ams427ap24 *ctx)
573{
574 struct mipi_dsi_device *dsi = ctx->dsi;
575 struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
576
577 dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
578
579 mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
580 mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
581 mipi_dsi_msleep(&dsi_ctx, 120);
582
583 return dsi_ctx.accum_err;
584}
585
586static int s6e88a0_ams427ap24_prepare(struct drm_panel *panel)
587{
588 struct s6e88a0_ams427ap24 *ctx = to_s6e88a0_ams427ap24(panel);
589 struct device *dev = &ctx->dsi->dev;
590 int ret;
591
592 ret = regulator_bulk_enable(ARRAY_SIZE(s6e88a0_ams427ap24_supplies),
593 ctx->supplies);
594 if (ret < 0) {
595 dev_err(dev, "Failed to enable regulators: %d\n", ret);
596 return ret;
597 }
598
599 s6e88a0_ams427ap24_reset(ctx);
600
601 ret = s6e88a0_ams427ap24_on(ctx);
602 if (ret < 0) {
603 dev_err(dev, "Failed to initialize panel: %d\n", ret);
604 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
605 regulator_bulk_disable(ARRAY_SIZE(s6e88a0_ams427ap24_supplies),
606 ctx->supplies);
607 return ret;
608 }
609
610 return 0;
611}
612
613static int s6e88a0_ams427ap24_unprepare(struct drm_panel *panel)
614{
615 struct s6e88a0_ams427ap24 *ctx = to_s6e88a0_ams427ap24(panel);
616 struct device *dev = &ctx->dsi->dev;
617 int ret;
618
619 ret = s6e88a0_ams427ap24_off(ctx);
620 if (ret < 0)
621 dev_err(dev, "Failed to un-initialize panel: %d\n", ret);
622
623 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
624 regulator_bulk_disable(ARRAY_SIZE(s6e88a0_ams427ap24_supplies),
625 ctx->supplies);
626
627 return 0;
628}
629
630static const struct drm_display_mode s6e88a0_ams427ap24_mode = {
631 .clock = (540 + 94 + 4 + 18) * (960 + 12 + 1 + 3) * 60 / 1000,
632 .hdisplay = 540,
633 .hsync_start = 540 + 94,
634 .hsync_end = 540 + 94 + 4,
635 .htotal = 540 + 94 + 4 + 18,
636 .vdisplay = 960,
637 .vsync_start = 960 + 12,
638 .vsync_end = 960 + 12 + 1,
639 .vtotal = 960 + 12 + 1 + 3,
640 .width_mm = 55,
641 .height_mm = 95,
642 .type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED,
643};
644
645static int s6e88a0_ams427ap24_get_modes(struct drm_panel *panel,
646 struct drm_connector *connector)
647{
648 return drm_connector_helper_get_modes_fixed(connector,
649 &s6e88a0_ams427ap24_mode);
650}
651
652static const struct drm_panel_funcs s6e88a0_ams427ap24_panel_funcs = {
653 .prepare = s6e88a0_ams427ap24_prepare,
654 .unprepare = s6e88a0_ams427ap24_unprepare,
655 .get_modes = s6e88a0_ams427ap24_get_modes,
656};
657
658static const struct backlight_ops s6e88a0_ams427ap24_bl_ops = {
659 .update_status = s6e88a0_ams427ap24_set_brightness,
660};
661
662static int s6e88a0_ams427ap24_register_backlight(struct s6e88a0_ams427ap24 *ctx)
663{
664 struct backlight_properties props = {
665 .type = BACKLIGHT_RAW,
666 .brightness = 180,
667 .max_brightness = 255,
668 };
669 struct mipi_dsi_device *dsi = ctx->dsi;
670 struct device *dev = &dsi->dev;
671 int ret = 0;
672
673 ctx->bl_dev = devm_backlight_device_register(dev, dev_name(dev), dev, ctx,
674 &s6e88a0_ams427ap24_bl_ops,
675 &props);
676 if (IS_ERR(ctx->bl_dev)) {
677 ret = PTR_ERR(ctx->bl_dev);
678 dev_err(dev, "error registering backlight device (%d)\n", ret);
679 }
680
681 return ret;
682}
683
684static int s6e88a0_ams427ap24_probe(struct mipi_dsi_device *dsi)
685{
686 struct device *dev = &dsi->dev;
687 struct s6e88a0_ams427ap24 *ctx;
688 int ret;
689
690 ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
691 if (!ctx)
692 return -ENOMEM;
693
694 ret = devm_regulator_bulk_get_const(dev,
695 ARRAY_SIZE(s6e88a0_ams427ap24_supplies),
696 s6e88a0_ams427ap24_supplies,
697 &ctx->supplies);
698 if (ret < 0)
699 return ret;
700
701 ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
702 if (IS_ERR(ctx->reset_gpio))
703 return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
704 "Failed to get reset-gpios\n");
705
706 ctx->dsi = dsi;
707 mipi_dsi_set_drvdata(dsi, ctx);
708
709 dsi->lanes = 2;
710 dsi->format = MIPI_DSI_FMT_RGB888;
711 dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
712 MIPI_DSI_MODE_NO_EOT_PACKET | MIPI_DSI_MODE_VIDEO_NO_HFP;
713
714 drm_panel_init(&ctx->panel, dev, &s6e88a0_ams427ap24_panel_funcs,
715 DRM_MODE_CONNECTOR_DSI);
716 ctx->panel.prepare_prev_first = true;
717
718 ctx->flip_horizontal = device_property_read_bool(dev, "flip-horizontal");
719
720 ret = s6e88a0_ams427ap24_register_backlight(ctx);
721 if (ret < 0)
722 return ret;
723
724 drm_panel_add(&ctx->panel);
725
726 ret = mipi_dsi_attach(dsi);
727 if (ret < 0) {
728 dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
729 drm_panel_remove(&ctx->panel);
730 return ret;
731 }
732
733 return 0;
734}
735
736static void s6e88a0_ams427ap24_remove(struct mipi_dsi_device *dsi)
737{
738 struct s6e88a0_ams427ap24 *ctx = mipi_dsi_get_drvdata(dsi);
739 int ret;
740
741 ret = mipi_dsi_detach(dsi);
742 if (ret < 0)
743 dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret);
744
745 drm_panel_remove(&ctx->panel);
746}
747
748static const struct of_device_id s6e88a0_ams427ap24_of_match[] = {
749 { .compatible = "samsung,s6e88a0-ams427ap24" },
750 { /* sentinel */ },
751};
752MODULE_DEVICE_TABLE(of, s6e88a0_ams427ap24_of_match);
753
754static struct mipi_dsi_driver s6e88a0_ams427ap24_driver = {
755 .probe = s6e88a0_ams427ap24_probe,
756 .remove = s6e88a0_ams427ap24_remove,
757 .driver = {
758 .name = "panel-s6e88a0-ams427ap24",
759 .of_match_table = s6e88a0_ams427ap24_of_match,
760 },
761};
762module_mipi_dsi_driver(s6e88a0_ams427ap24_driver);
763
764MODULE_AUTHOR("Jakob Hauser <jahau@rocketmail.com>");
765MODULE_DESCRIPTION("Samsung AMS427AP24 panel with S6E88A0 controller");
766MODULE_LICENSE("GPL v2");