1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (C) 2017-2018, Bootlin
4 */
5
6 #include <linux/delay.h>
7 #include <linux/device.h>
8 #include <linux/err.h>
9 #include <linux/errno.h>
10 #include <linux/fb.h>
11 #include <linux/kernel.h>
12 #include <linux/module.h>
13 #include <linux/of_device.h>
14
15 #include <linux/gpio/consumer.h>
16 #include <linux/regulator/consumer.h>
17
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 enum ili9881c_op {
25 ILI9881C_SWITCH_PAGE,
26 ILI9881C_COMMAND,
27 };
28
29 struct ili9881c_instr {
30 enum ili9881c_op op;
31
32 union arg {
33 struct cmd {
34 u8 cmd;
35 u8 data;
36 } cmd;
37 u8 page;
38 } arg;
39 };
40
41 struct ili9881c_desc {
42 const struct ili9881c_instr *init;
43 const size_t init_length;
44 const struct drm_display_mode *mode;
45 };
46
47 struct ili9881c {
48 struct drm_panel panel;
49 struct mipi_dsi_device *dsi;
50 const struct ili9881c_desc *desc;
51
52 struct regulator *power;
53 struct gpio_desc *reset;
54 };
55
56 #define ILI9881C_SWITCH_PAGE_INSTR(_page) \
57 { \
58 .op = ILI9881C_SWITCH_PAGE, \
59 .arg = { \
60 .page = (_page), \
61 }, \
62 }
63
64 #define ILI9881C_COMMAND_INSTR(_cmd, _data) \
65 { \
66 .op = ILI9881C_COMMAND, \
67 .arg = { \
68 .cmd = { \
69 .cmd = (_cmd), \
70 .data = (_data), \
71 }, \
72 }, \
73 }
74
75 static const struct ili9881c_instr lhr050h41_init[] = {
76 ILI9881C_SWITCH_PAGE_INSTR(3),
77 ILI9881C_COMMAND_INSTR(0x01, 0x00),
78 ILI9881C_COMMAND_INSTR(0x02, 0x00),
79 ILI9881C_COMMAND_INSTR(0x03, 0x73),
80 ILI9881C_COMMAND_INSTR(0x04, 0x03),
81 ILI9881C_COMMAND_INSTR(0x05, 0x00),
82 ILI9881C_COMMAND_INSTR(0x06, 0x06),
83 ILI9881C_COMMAND_INSTR(0x07, 0x06),
84 ILI9881C_COMMAND_INSTR(0x08, 0x00),
85 ILI9881C_COMMAND_INSTR(0x09, 0x18),
86 ILI9881C_COMMAND_INSTR(0x0a, 0x04),
87 ILI9881C_COMMAND_INSTR(0x0b, 0x00),
88 ILI9881C_COMMAND_INSTR(0x0c, 0x02),
89 ILI9881C_COMMAND_INSTR(0x0d, 0x03),
90 ILI9881C_COMMAND_INSTR(0x0e, 0x00),
91 ILI9881C_COMMAND_INSTR(0x0f, 0x25),
92 ILI9881C_COMMAND_INSTR(0x10, 0x25),
93 ILI9881C_COMMAND_INSTR(0x11, 0x00),
94 ILI9881C_COMMAND_INSTR(0x12, 0x00),
95 ILI9881C_COMMAND_INSTR(0x13, 0x00),
96 ILI9881C_COMMAND_INSTR(0x14, 0x00),
97 ILI9881C_COMMAND_INSTR(0x15, 0x00),
98 ILI9881C_COMMAND_INSTR(0x16, 0x0C),
99 ILI9881C_COMMAND_INSTR(0x17, 0x00),
100 ILI9881C_COMMAND_INSTR(0x18, 0x00),
101 ILI9881C_COMMAND_INSTR(0x19, 0x00),
102 ILI9881C_COMMAND_INSTR(0x1a, 0x00),
103 ILI9881C_COMMAND_INSTR(0x1b, 0x00),
104 ILI9881C_COMMAND_INSTR(0x1c, 0x00),
105 ILI9881C_COMMAND_INSTR(0x1d, 0x00),
106 ILI9881C_COMMAND_INSTR(0x1e, 0xC0),
107 ILI9881C_COMMAND_INSTR(0x1f, 0x80),
108 ILI9881C_COMMAND_INSTR(0x20, 0x04),
109 ILI9881C_COMMAND_INSTR(0x21, 0x01),
110 ILI9881C_COMMAND_INSTR(0x22, 0x00),
111 ILI9881C_COMMAND_INSTR(0x23, 0x00),
112 ILI9881C_COMMAND_INSTR(0x24, 0x00),
113 ILI9881C_COMMAND_INSTR(0x25, 0x00),
114 ILI9881C_COMMAND_INSTR(0x26, 0x00),
115 ILI9881C_COMMAND_INSTR(0x27, 0x00),
116 ILI9881C_COMMAND_INSTR(0x28, 0x33),
117 ILI9881C_COMMAND_INSTR(0x29, 0x03),
118 ILI9881C_COMMAND_INSTR(0x2a, 0x00),
119 ILI9881C_COMMAND_INSTR(0x2b, 0x00),
120 ILI9881C_COMMAND_INSTR(0x2c, 0x00),
121 ILI9881C_COMMAND_INSTR(0x2d, 0x00),
122 ILI9881C_COMMAND_INSTR(0x2e, 0x00),
123 ILI9881C_COMMAND_INSTR(0x2f, 0x00),
124 ILI9881C_COMMAND_INSTR(0x30, 0x00),
125 ILI9881C_COMMAND_INSTR(0x31, 0x00),
126 ILI9881C_COMMAND_INSTR(0x32, 0x00),
127 ILI9881C_COMMAND_INSTR(0x33, 0x00),
128 ILI9881C_COMMAND_INSTR(0x34, 0x04),
129 ILI9881C_COMMAND_INSTR(0x35, 0x00),
130 ILI9881C_COMMAND_INSTR(0x36, 0x00),
131 ILI9881C_COMMAND_INSTR(0x37, 0x00),
132 ILI9881C_COMMAND_INSTR(0x38, 0x3C),
133 ILI9881C_COMMAND_INSTR(0x39, 0x00),
134 ILI9881C_COMMAND_INSTR(0x3a, 0x00),
135 ILI9881C_COMMAND_INSTR(0x3b, 0x00),
136 ILI9881C_COMMAND_INSTR(0x3c, 0x00),
137 ILI9881C_COMMAND_INSTR(0x3d, 0x00),
138 ILI9881C_COMMAND_INSTR(0x3e, 0x00),
139 ILI9881C_COMMAND_INSTR(0x3f, 0x00),
140 ILI9881C_COMMAND_INSTR(0x40, 0x00),
141 ILI9881C_COMMAND_INSTR(0x41, 0x00),
142 ILI9881C_COMMAND_INSTR(0x42, 0x00),
143 ILI9881C_COMMAND_INSTR(0x43, 0x00),
144 ILI9881C_COMMAND_INSTR(0x44, 0x00),
145 ILI9881C_COMMAND_INSTR(0x50, 0x01),
146 ILI9881C_COMMAND_INSTR(0x51, 0x23),
147 ILI9881C_COMMAND_INSTR(0x52, 0x45),
148 ILI9881C_COMMAND_INSTR(0x53, 0x67),
149 ILI9881C_COMMAND_INSTR(0x54, 0x89),
150 ILI9881C_COMMAND_INSTR(0x55, 0xab),
151 ILI9881C_COMMAND_INSTR(0x56, 0x01),
152 ILI9881C_COMMAND_INSTR(0x57, 0x23),
153 ILI9881C_COMMAND_INSTR(0x58, 0x45),
154 ILI9881C_COMMAND_INSTR(0x59, 0x67),
155 ILI9881C_COMMAND_INSTR(0x5a, 0x89),
156 ILI9881C_COMMAND_INSTR(0x5b, 0xab),
157 ILI9881C_COMMAND_INSTR(0x5c, 0xcd),
158 ILI9881C_COMMAND_INSTR(0x5d, 0xef),
159 ILI9881C_COMMAND_INSTR(0x5e, 0x11),
160 ILI9881C_COMMAND_INSTR(0x5f, 0x02),
161 ILI9881C_COMMAND_INSTR(0x60, 0x02),
162 ILI9881C_COMMAND_INSTR(0x61, 0x02),
163 ILI9881C_COMMAND_INSTR(0x62, 0x02),
164 ILI9881C_COMMAND_INSTR(0x63, 0x02),
165 ILI9881C_COMMAND_INSTR(0x64, 0x02),
166 ILI9881C_COMMAND_INSTR(0x65, 0x02),
167 ILI9881C_COMMAND_INSTR(0x66, 0x02),
168 ILI9881C_COMMAND_INSTR(0x67, 0x02),
169 ILI9881C_COMMAND_INSTR(0x68, 0x02),
170 ILI9881C_COMMAND_INSTR(0x69, 0x02),
171 ILI9881C_COMMAND_INSTR(0x6a, 0x0C),
172 ILI9881C_COMMAND_INSTR(0x6b, 0x02),
173 ILI9881C_COMMAND_INSTR(0x6c, 0x0F),
174 ILI9881C_COMMAND_INSTR(0x6d, 0x0E),
175 ILI9881C_COMMAND_INSTR(0x6e, 0x0D),
176 ILI9881C_COMMAND_INSTR(0x6f, 0x06),
177 ILI9881C_COMMAND_INSTR(0x70, 0x07),
178 ILI9881C_COMMAND_INSTR(0x71, 0x02),
179 ILI9881C_COMMAND_INSTR(0x72, 0x02),
180 ILI9881C_COMMAND_INSTR(0x73, 0x02),
181 ILI9881C_COMMAND_INSTR(0x74, 0x02),
182 ILI9881C_COMMAND_INSTR(0x75, 0x02),
183 ILI9881C_COMMAND_INSTR(0x76, 0x02),
184 ILI9881C_COMMAND_INSTR(0x77, 0x02),
185 ILI9881C_COMMAND_INSTR(0x78, 0x02),
186 ILI9881C_COMMAND_INSTR(0x79, 0x02),
187 ILI9881C_COMMAND_INSTR(0x7a, 0x02),
188 ILI9881C_COMMAND_INSTR(0x7b, 0x02),
189 ILI9881C_COMMAND_INSTR(0x7c, 0x02),
190 ILI9881C_COMMAND_INSTR(0x7d, 0x02),
191 ILI9881C_COMMAND_INSTR(0x7e, 0x02),
192 ILI9881C_COMMAND_INSTR(0x7f, 0x02),
193 ILI9881C_COMMAND_INSTR(0x80, 0x0C),
194 ILI9881C_COMMAND_INSTR(0x81, 0x02),
195 ILI9881C_COMMAND_INSTR(0x82, 0x0F),
196 ILI9881C_COMMAND_INSTR(0x83, 0x0E),
197 ILI9881C_COMMAND_INSTR(0x84, 0x0D),
198 ILI9881C_COMMAND_INSTR(0x85, 0x06),
199 ILI9881C_COMMAND_INSTR(0x86, 0x07),
200 ILI9881C_COMMAND_INSTR(0x87, 0x02),
201 ILI9881C_COMMAND_INSTR(0x88, 0x02),
202 ILI9881C_COMMAND_INSTR(0x89, 0x02),
203 ILI9881C_COMMAND_INSTR(0x8A, 0x02),
204 ILI9881C_SWITCH_PAGE_INSTR(4),
205 ILI9881C_COMMAND_INSTR(0x6C, 0x15),
206 ILI9881C_COMMAND_INSTR(0x6E, 0x22),
207 ILI9881C_COMMAND_INSTR(0x6F, 0x33),
208 ILI9881C_COMMAND_INSTR(0x3A, 0xA4),
209 ILI9881C_COMMAND_INSTR(0x8D, 0x0D),
210 ILI9881C_COMMAND_INSTR(0x87, 0xBA),
211 ILI9881C_COMMAND_INSTR(0x26, 0x76),
212 ILI9881C_COMMAND_INSTR(0xB2, 0xD1),
213 ILI9881C_SWITCH_PAGE_INSTR(1),
214 ILI9881C_COMMAND_INSTR(0x22, 0x0A),
215 ILI9881C_COMMAND_INSTR(0x53, 0xDC),
216 ILI9881C_COMMAND_INSTR(0x55, 0xA7),
217 ILI9881C_COMMAND_INSTR(0x50, 0x78),
218 ILI9881C_COMMAND_INSTR(0x51, 0x78),
219 ILI9881C_COMMAND_INSTR(0x31, 0x02),
220 ILI9881C_COMMAND_INSTR(0x60, 0x14),
221 ILI9881C_COMMAND_INSTR(0xA0, 0x2A),
222 ILI9881C_COMMAND_INSTR(0xA1, 0x39),
223 ILI9881C_COMMAND_INSTR(0xA2, 0x46),
224 ILI9881C_COMMAND_INSTR(0xA3, 0x0e),
225 ILI9881C_COMMAND_INSTR(0xA4, 0x12),
226 ILI9881C_COMMAND_INSTR(0xA5, 0x25),
227 ILI9881C_COMMAND_INSTR(0xA6, 0x19),
228 ILI9881C_COMMAND_INSTR(0xA7, 0x1d),
229 ILI9881C_COMMAND_INSTR(0xA8, 0xa6),
230 ILI9881C_COMMAND_INSTR(0xA9, 0x1C),
231 ILI9881C_COMMAND_INSTR(0xAA, 0x29),
232 ILI9881C_COMMAND_INSTR(0xAB, 0x85),
233 ILI9881C_COMMAND_INSTR(0xAC, 0x1C),
234 ILI9881C_COMMAND_INSTR(0xAD, 0x1B),
235 ILI9881C_COMMAND_INSTR(0xAE, 0x51),
236 ILI9881C_COMMAND_INSTR(0xAF, 0x22),
237 ILI9881C_COMMAND_INSTR(0xB0, 0x2d),
238 ILI9881C_COMMAND_INSTR(0xB1, 0x4f),
239 ILI9881C_COMMAND_INSTR(0xB2, 0x59),
240 ILI9881C_COMMAND_INSTR(0xB3, 0x3F),
241 ILI9881C_COMMAND_INSTR(0xC0, 0x2A),
242 ILI9881C_COMMAND_INSTR(0xC1, 0x3a),
243 ILI9881C_COMMAND_INSTR(0xC2, 0x45),
244 ILI9881C_COMMAND_INSTR(0xC3, 0x0e),
245 ILI9881C_COMMAND_INSTR(0xC4, 0x11),
246 ILI9881C_COMMAND_INSTR(0xC5, 0x24),
247 ILI9881C_COMMAND_INSTR(0xC6, 0x1a),
248 ILI9881C_COMMAND_INSTR(0xC7, 0x1c),
249 ILI9881C_COMMAND_INSTR(0xC8, 0xaa),
250 ILI9881C_COMMAND_INSTR(0xC9, 0x1C),
251 ILI9881C_COMMAND_INSTR(0xCA, 0x29),
252 ILI9881C_COMMAND_INSTR(0xCB, 0x96),
253 ILI9881C_COMMAND_INSTR(0xCC, 0x1C),
254 ILI9881C_COMMAND_INSTR(0xCD, 0x1B),
255 ILI9881C_COMMAND_INSTR(0xCE, 0x51),
256 ILI9881C_COMMAND_INSTR(0xCF, 0x22),
257 ILI9881C_COMMAND_INSTR(0xD0, 0x2b),
258 ILI9881C_COMMAND_INSTR(0xD1, 0x4b),
259 ILI9881C_COMMAND_INSTR(0xD2, 0x59),
260 ILI9881C_COMMAND_INSTR(0xD3, 0x3F),
261 };
262
263 static const struct ili9881c_instr k101_im2byl02_init[] = {
264 ILI9881C_SWITCH_PAGE_INSTR(3),
265 ILI9881C_COMMAND_INSTR(0x01, 0x00),
266 ILI9881C_COMMAND_INSTR(0x02, 0x00),
267 ILI9881C_COMMAND_INSTR(0x03, 0x73),
268 ILI9881C_COMMAND_INSTR(0x04, 0x00),
269 ILI9881C_COMMAND_INSTR(0x05, 0x00),
270 ILI9881C_COMMAND_INSTR(0x06, 0x08),
271 ILI9881C_COMMAND_INSTR(0x07, 0x00),
272 ILI9881C_COMMAND_INSTR(0x08, 0x00),
273 ILI9881C_COMMAND_INSTR(0x09, 0x00),
274 ILI9881C_COMMAND_INSTR(0x0A, 0x01),
275 ILI9881C_COMMAND_INSTR(0x0B, 0x01),
276 ILI9881C_COMMAND_INSTR(0x0C, 0x00),
277 ILI9881C_COMMAND_INSTR(0x0D, 0x01),
278 ILI9881C_COMMAND_INSTR(0x0E, 0x01),
279 ILI9881C_COMMAND_INSTR(0x0F, 0x00),
280 ILI9881C_COMMAND_INSTR(0x10, 0x00),
281 ILI9881C_COMMAND_INSTR(0x11, 0x00),
282 ILI9881C_COMMAND_INSTR(0x12, 0x00),
283 ILI9881C_COMMAND_INSTR(0x13, 0x00),
284 ILI9881C_COMMAND_INSTR(0x14, 0x00),
285 ILI9881C_COMMAND_INSTR(0x15, 0x00),
286 ILI9881C_COMMAND_INSTR(0x16, 0x00),
287 ILI9881C_COMMAND_INSTR(0x17, 0x00),
288 ILI9881C_COMMAND_INSTR(0x18, 0x00),
289 ILI9881C_COMMAND_INSTR(0x19, 0x00),
290 ILI9881C_COMMAND_INSTR(0x1A, 0x00),
291 ILI9881C_COMMAND_INSTR(0x1B, 0x00),
292 ILI9881C_COMMAND_INSTR(0x1C, 0x00),
293 ILI9881C_COMMAND_INSTR(0x1D, 0x00),
294 ILI9881C_COMMAND_INSTR(0x1E, 0x40),
295 ILI9881C_COMMAND_INSTR(0x1F, 0xC0),
296 ILI9881C_COMMAND_INSTR(0x20, 0x06),
297 ILI9881C_COMMAND_INSTR(0x21, 0x01),
298 ILI9881C_COMMAND_INSTR(0x22, 0x06),
299 ILI9881C_COMMAND_INSTR(0x23, 0x01),
300 ILI9881C_COMMAND_INSTR(0x24, 0x88),
301 ILI9881C_COMMAND_INSTR(0x25, 0x88),
302 ILI9881C_COMMAND_INSTR(0x26, 0x00),
303 ILI9881C_COMMAND_INSTR(0x27, 0x00),
304 ILI9881C_COMMAND_INSTR(0x28, 0x3B),
305 ILI9881C_COMMAND_INSTR(0x29, 0x03),
306 ILI9881C_COMMAND_INSTR(0x2A, 0x00),
307 ILI9881C_COMMAND_INSTR(0x2B, 0x00),
308 ILI9881C_COMMAND_INSTR(0x2C, 0x00),
309 ILI9881C_COMMAND_INSTR(0x2D, 0x00),
310 ILI9881C_COMMAND_INSTR(0x2E, 0x00),
311 ILI9881C_COMMAND_INSTR(0x2F, 0x00),
312 ILI9881C_COMMAND_INSTR(0x30, 0x00),
313 ILI9881C_COMMAND_INSTR(0x31, 0x00),
314 ILI9881C_COMMAND_INSTR(0x32, 0x00),
315 ILI9881C_COMMAND_INSTR(0x33, 0x00),
316 ILI9881C_COMMAND_INSTR(0x34, 0x00), /* GPWR1/2 non overlap time 2.62us */
317 ILI9881C_COMMAND_INSTR(0x35, 0x00),
318 ILI9881C_COMMAND_INSTR(0x36, 0x00),
319 ILI9881C_COMMAND_INSTR(0x37, 0x00),
320 ILI9881C_COMMAND_INSTR(0x38, 0x00),
321 ILI9881C_COMMAND_INSTR(0x39, 0x00),
322 ILI9881C_COMMAND_INSTR(0x3A, 0x00),
323 ILI9881C_COMMAND_INSTR(0x3B, 0x00),
324 ILI9881C_COMMAND_INSTR(0x3C, 0x00),
325 ILI9881C_COMMAND_INSTR(0x3D, 0x00),
326 ILI9881C_COMMAND_INSTR(0x3E, 0x00),
327 ILI9881C_COMMAND_INSTR(0x3F, 0x00),
328 ILI9881C_COMMAND_INSTR(0x40, 0x00),
329 ILI9881C_COMMAND_INSTR(0x41, 0x00),
330 ILI9881C_COMMAND_INSTR(0x42, 0x00),
331 ILI9881C_COMMAND_INSTR(0x43, 0x00),
332 ILI9881C_COMMAND_INSTR(0x44, 0x00),
333 ILI9881C_COMMAND_INSTR(0x50, 0x01),
334 ILI9881C_COMMAND_INSTR(0x51, 0x23),
335 ILI9881C_COMMAND_INSTR(0x52, 0x45),
336 ILI9881C_COMMAND_INSTR(0x53, 0x67),
337 ILI9881C_COMMAND_INSTR(0x54, 0x89),
338 ILI9881C_COMMAND_INSTR(0x55, 0xAB),
339 ILI9881C_COMMAND_INSTR(0x56, 0x01),
340 ILI9881C_COMMAND_INSTR(0x57, 0x23),
341 ILI9881C_COMMAND_INSTR(0x58, 0x45),
342 ILI9881C_COMMAND_INSTR(0x59, 0x67),
343 ILI9881C_COMMAND_INSTR(0x5A, 0x89),
344 ILI9881C_COMMAND_INSTR(0x5B, 0xAB),
345 ILI9881C_COMMAND_INSTR(0x5C, 0xCD),
346 ILI9881C_COMMAND_INSTR(0x5D, 0xEF),
347 ILI9881C_COMMAND_INSTR(0x5E, 0x00),
348 ILI9881C_COMMAND_INSTR(0x5F, 0x01),
349 ILI9881C_COMMAND_INSTR(0x60, 0x01),
350 ILI9881C_COMMAND_INSTR(0x61, 0x06),
351 ILI9881C_COMMAND_INSTR(0x62, 0x06),
352 ILI9881C_COMMAND_INSTR(0x63, 0x07),
353 ILI9881C_COMMAND_INSTR(0x64, 0x07),
354 ILI9881C_COMMAND_INSTR(0x65, 0x00),
355 ILI9881C_COMMAND_INSTR(0x66, 0x00),
356 ILI9881C_COMMAND_INSTR(0x67, 0x02),
357 ILI9881C_COMMAND_INSTR(0x68, 0x02),
358 ILI9881C_COMMAND_INSTR(0x69, 0x05),
359 ILI9881C_COMMAND_INSTR(0x6A, 0x05),
360 ILI9881C_COMMAND_INSTR(0x6B, 0x02),
361 ILI9881C_COMMAND_INSTR(0x6C, 0x0D),
362 ILI9881C_COMMAND_INSTR(0x6D, 0x0D),
363 ILI9881C_COMMAND_INSTR(0x6E, 0x0C),
364 ILI9881C_COMMAND_INSTR(0x6F, 0x0C),
365 ILI9881C_COMMAND_INSTR(0x70, 0x0F),
366 ILI9881C_COMMAND_INSTR(0x71, 0x0F),
367 ILI9881C_COMMAND_INSTR(0x72, 0x0E),
368 ILI9881C_COMMAND_INSTR(0x73, 0x0E),
369 ILI9881C_COMMAND_INSTR(0x74, 0x02),
370 ILI9881C_COMMAND_INSTR(0x75, 0x01),
371 ILI9881C_COMMAND_INSTR(0x76, 0x01),
372 ILI9881C_COMMAND_INSTR(0x77, 0x06),
373 ILI9881C_COMMAND_INSTR(0x78, 0x06),
374 ILI9881C_COMMAND_INSTR(0x79, 0x07),
375 ILI9881C_COMMAND_INSTR(0x7A, 0x07),
376 ILI9881C_COMMAND_INSTR(0x7B, 0x00),
377 ILI9881C_COMMAND_INSTR(0x7C, 0x00),
378 ILI9881C_COMMAND_INSTR(0x7D, 0x02),
379 ILI9881C_COMMAND_INSTR(0x7E, 0x02),
380 ILI9881C_COMMAND_INSTR(0x7F, 0x05),
381 ILI9881C_COMMAND_INSTR(0x80, 0x05),
382 ILI9881C_COMMAND_INSTR(0x81, 0x02),
383 ILI9881C_COMMAND_INSTR(0x82, 0x0D),
384 ILI9881C_COMMAND_INSTR(0x83, 0x0D),
385 ILI9881C_COMMAND_INSTR(0x84, 0x0C),
386 ILI9881C_COMMAND_INSTR(0x85, 0x0C),
387 ILI9881C_COMMAND_INSTR(0x86, 0x0F),
388 ILI9881C_COMMAND_INSTR(0x87, 0x0F),
389 ILI9881C_COMMAND_INSTR(0x88, 0x0E),
390 ILI9881C_COMMAND_INSTR(0x89, 0x0E),
391 ILI9881C_COMMAND_INSTR(0x8A, 0x02),
392 ILI9881C_SWITCH_PAGE_INSTR(4),
393 ILI9881C_COMMAND_INSTR(0x3B, 0xC0), /* ILI4003D sel */
394 ILI9881C_COMMAND_INSTR(0x6C, 0x15), /* Set VCORE voltage = 1.5V */
395 ILI9881C_COMMAND_INSTR(0x6E, 0x2A), /* di_pwr_reg=0 for power mode 2A, VGH clamp 18V */
396 ILI9881C_COMMAND_INSTR(0x6F, 0x33), /* pumping ratio VGH=5x VGL=-3x */
397 ILI9881C_COMMAND_INSTR(0x8D, 0x1B), /* VGL clamp -10V */
398 ILI9881C_COMMAND_INSTR(0x87, 0xBA), /* ESD */
399 ILI9881C_COMMAND_INSTR(0x3A, 0x24), /* POWER SAVING */
400 ILI9881C_COMMAND_INSTR(0x26, 0x76),
401 ILI9881C_COMMAND_INSTR(0xB2, 0xD1),
402 ILI9881C_SWITCH_PAGE_INSTR(1),
403 ILI9881C_COMMAND_INSTR(0x22, 0x0A), /* BGR, SS */
404 ILI9881C_COMMAND_INSTR(0x31, 0x00), /* Zigzag type3 inversion */
405 ILI9881C_COMMAND_INSTR(0x40, 0x53), /* ILI4003D sel */
406 ILI9881C_COMMAND_INSTR(0x43, 0x66),
407 ILI9881C_COMMAND_INSTR(0x53, 0x4C),
408 ILI9881C_COMMAND_INSTR(0x50, 0x87),
409 ILI9881C_COMMAND_INSTR(0x51, 0x82),
410 ILI9881C_COMMAND_INSTR(0x60, 0x15),
411 ILI9881C_COMMAND_INSTR(0x61, 0x01),
412 ILI9881C_COMMAND_INSTR(0x62, 0x0C),
413 ILI9881C_COMMAND_INSTR(0x63, 0x00),
414 ILI9881C_COMMAND_INSTR(0xA0, 0x00),
415 ILI9881C_COMMAND_INSTR(0xA1, 0x13), /* VP251 */
416 ILI9881C_COMMAND_INSTR(0xA2, 0x23), /* VP247 */
417 ILI9881C_COMMAND_INSTR(0xA3, 0x14), /* VP243 */
418 ILI9881C_COMMAND_INSTR(0xA4, 0x16), /* VP239 */
419 ILI9881C_COMMAND_INSTR(0xA5, 0x29), /* VP231 */
420 ILI9881C_COMMAND_INSTR(0xA6, 0x1E), /* VP219 */
421 ILI9881C_COMMAND_INSTR(0xA7, 0x1D), /* VP203 */
422 ILI9881C_COMMAND_INSTR(0xA8, 0x86), /* VP175 */
423 ILI9881C_COMMAND_INSTR(0xA9, 0x1E), /* VP144 */
424 ILI9881C_COMMAND_INSTR(0xAA, 0x29), /* VP111 */
425 ILI9881C_COMMAND_INSTR(0xAB, 0x74), /* VP80 */
426 ILI9881C_COMMAND_INSTR(0xAC, 0x19), /* VP52 */
427 ILI9881C_COMMAND_INSTR(0xAD, 0x17), /* VP36 */
428 ILI9881C_COMMAND_INSTR(0xAE, 0x4B), /* VP24 */
429 ILI9881C_COMMAND_INSTR(0xAF, 0x20), /* VP16 */
430 ILI9881C_COMMAND_INSTR(0xB0, 0x26), /* VP12 */
431 ILI9881C_COMMAND_INSTR(0xB1, 0x4C), /* VP8 */
432 ILI9881C_COMMAND_INSTR(0xB2, 0x5D), /* VP4 */
433 ILI9881C_COMMAND_INSTR(0xB3, 0x3F), /* VP0 */
434 ILI9881C_COMMAND_INSTR(0xC0, 0x00), /* VN255 GAMMA N */
435 ILI9881C_COMMAND_INSTR(0xC1, 0x13), /* VN251 */
436 ILI9881C_COMMAND_INSTR(0xC2, 0x23), /* VN247 */
437 ILI9881C_COMMAND_INSTR(0xC3, 0x14), /* VN243 */
438 ILI9881C_COMMAND_INSTR(0xC4, 0x16), /* VN239 */
439 ILI9881C_COMMAND_INSTR(0xC5, 0x29), /* VN231 */
440 ILI9881C_COMMAND_INSTR(0xC6, 0x1E), /* VN219 */
441 ILI9881C_COMMAND_INSTR(0xC7, 0x1D), /* VN203 */
442 ILI9881C_COMMAND_INSTR(0xC8, 0x86), /* VN175 */
443 ILI9881C_COMMAND_INSTR(0xC9, 0x1E), /* VN144 */
444 ILI9881C_COMMAND_INSTR(0xCA, 0x29), /* VN111 */
445 ILI9881C_COMMAND_INSTR(0xCB, 0x74), /* VN80 */
446 ILI9881C_COMMAND_INSTR(0xCC, 0x19), /* VN52 */
447 ILI9881C_COMMAND_INSTR(0xCD, 0x17), /* VN36 */
448 ILI9881C_COMMAND_INSTR(0xCE, 0x4B), /* VN24 */
449 ILI9881C_COMMAND_INSTR(0xCF, 0x20), /* VN16 */
450 ILI9881C_COMMAND_INSTR(0xD0, 0x26), /* VN12 */
451 ILI9881C_COMMAND_INSTR(0xD1, 0x4C), /* VN8 */
452 ILI9881C_COMMAND_INSTR(0xD2, 0x5D), /* VN4 */
453 ILI9881C_COMMAND_INSTR(0xD3, 0x3F), /* VN0 */
454 };
455
panel_to_ili9881c(struct drm_panel * panel)456 static inline struct ili9881c *panel_to_ili9881c(struct drm_panel *panel)
457 {
458 return container_of(panel, struct ili9881c, panel);
459 }
460
461 /*
462 * The panel seems to accept some private DCS commands that map
463 * directly to registers.
464 *
465 * It is organised by page, with each page having its own set of
466 * registers, and the first page looks like it's holding the standard
467 * DCS commands.
468 *
469 * So before any attempt at sending a command or data, we have to be
470 * sure if we're in the right page or not.
471 */
ili9881c_switch_page(struct ili9881c * ctx,u8 page)472 static int ili9881c_switch_page(struct ili9881c *ctx, u8 page)
473 {
474 u8 buf[4] = { 0xff, 0x98, 0x81, page };
475 int ret;
476
477 ret = mipi_dsi_dcs_write_buffer(ctx->dsi, buf, sizeof(buf));
478 if (ret < 0)
479 return ret;
480
481 return 0;
482 }
483
ili9881c_send_cmd_data(struct ili9881c * ctx,u8 cmd,u8 data)484 static int ili9881c_send_cmd_data(struct ili9881c *ctx, u8 cmd, u8 data)
485 {
486 u8 buf[2] = { cmd, data };
487 int ret;
488
489 ret = mipi_dsi_dcs_write_buffer(ctx->dsi, buf, sizeof(buf));
490 if (ret < 0)
491 return ret;
492
493 return 0;
494 }
495
ili9881c_prepare(struct drm_panel * panel)496 static int ili9881c_prepare(struct drm_panel *panel)
497 {
498 struct ili9881c *ctx = panel_to_ili9881c(panel);
499 unsigned int i;
500 int ret;
501
502 /* Power the panel */
503 ret = regulator_enable(ctx->power);
504 if (ret)
505 return ret;
506 msleep(5);
507
508 /* And reset it */
509 gpiod_set_value(ctx->reset, 1);
510 msleep(20);
511
512 gpiod_set_value(ctx->reset, 0);
513 msleep(20);
514
515 for (i = 0; i < ctx->desc->init_length; i++) {
516 const struct ili9881c_instr *instr = &ctx->desc->init[i];
517
518 if (instr->op == ILI9881C_SWITCH_PAGE)
519 ret = ili9881c_switch_page(ctx, instr->arg.page);
520 else if (instr->op == ILI9881C_COMMAND)
521 ret = ili9881c_send_cmd_data(ctx, instr->arg.cmd.cmd,
522 instr->arg.cmd.data);
523
524 if (ret)
525 return ret;
526 }
527
528 ret = ili9881c_switch_page(ctx, 0);
529 if (ret)
530 return ret;
531
532 ret = mipi_dsi_dcs_set_tear_on(ctx->dsi, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
533 if (ret)
534 return ret;
535
536 ret = mipi_dsi_dcs_exit_sleep_mode(ctx->dsi);
537 if (ret)
538 return ret;
539
540 return 0;
541 }
542
ili9881c_enable(struct drm_panel * panel)543 static int ili9881c_enable(struct drm_panel *panel)
544 {
545 struct ili9881c *ctx = panel_to_ili9881c(panel);
546
547 msleep(120);
548
549 mipi_dsi_dcs_set_display_on(ctx->dsi);
550
551 return 0;
552 }
553
ili9881c_disable(struct drm_panel * panel)554 static int ili9881c_disable(struct drm_panel *panel)
555 {
556 struct ili9881c *ctx = panel_to_ili9881c(panel);
557
558 return mipi_dsi_dcs_set_display_off(ctx->dsi);
559 }
560
ili9881c_unprepare(struct drm_panel * panel)561 static int ili9881c_unprepare(struct drm_panel *panel)
562 {
563 struct ili9881c *ctx = panel_to_ili9881c(panel);
564
565 mipi_dsi_dcs_enter_sleep_mode(ctx->dsi);
566 regulator_disable(ctx->power);
567 gpiod_set_value(ctx->reset, 1);
568
569 return 0;
570 }
571
572 static const struct drm_display_mode lhr050h41_default_mode = {
573 .clock = 62000,
574
575 .hdisplay = 720,
576 .hsync_start = 720 + 10,
577 .hsync_end = 720 + 10 + 20,
578 .htotal = 720 + 10 + 20 + 30,
579
580 .vdisplay = 1280,
581 .vsync_start = 1280 + 10,
582 .vsync_end = 1280 + 10 + 10,
583 .vtotal = 1280 + 10 + 10 + 20,
584
585 .width_mm = 62,
586 .height_mm = 110,
587 };
588
589 static const struct drm_display_mode k101_im2byl02_default_mode = {
590 .clock = 69700,
591
592 .hdisplay = 800,
593 .hsync_start = 800 + 6,
594 .hsync_end = 800 + 6 + 15,
595 .htotal = 800 + 6 + 15 + 16,
596
597 .vdisplay = 1280,
598 .vsync_start = 1280 + 8,
599 .vsync_end = 1280 + 8 + 48,
600 .vtotal = 1280 + 8 + 48 + 52,
601
602 .width_mm = 135,
603 .height_mm = 217,
604 };
605
ili9881c_get_modes(struct drm_panel * panel,struct drm_connector * connector)606 static int ili9881c_get_modes(struct drm_panel *panel,
607 struct drm_connector *connector)
608 {
609 struct ili9881c *ctx = panel_to_ili9881c(panel);
610 struct drm_display_mode *mode;
611
612 mode = drm_mode_duplicate(connector->dev, ctx->desc->mode);
613 if (!mode) {
614 dev_err(&ctx->dsi->dev, "failed to add mode %ux%ux@%u\n",
615 ctx->desc->mode->hdisplay,
616 ctx->desc->mode->vdisplay,
617 drm_mode_vrefresh(ctx->desc->mode));
618 return -ENOMEM;
619 }
620
621 drm_mode_set_name(mode);
622
623 mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
624 drm_mode_probed_add(connector, mode);
625
626 connector->display_info.width_mm = mode->width_mm;
627 connector->display_info.height_mm = mode->height_mm;
628
629 return 1;
630 }
631
632 static const struct drm_panel_funcs ili9881c_funcs = {
633 .prepare = ili9881c_prepare,
634 .unprepare = ili9881c_unprepare,
635 .enable = ili9881c_enable,
636 .disable = ili9881c_disable,
637 .get_modes = ili9881c_get_modes,
638 };
639
ili9881c_dsi_probe(struct mipi_dsi_device * dsi)640 static int ili9881c_dsi_probe(struct mipi_dsi_device *dsi)
641 {
642 struct ili9881c *ctx;
643 int ret;
644
645 ctx = devm_kzalloc(&dsi->dev, sizeof(*ctx), GFP_KERNEL);
646 if (!ctx)
647 return -ENOMEM;
648 mipi_dsi_set_drvdata(dsi, ctx);
649 ctx->dsi = dsi;
650 ctx->desc = of_device_get_match_data(&dsi->dev);
651
652 drm_panel_init(&ctx->panel, &dsi->dev, &ili9881c_funcs,
653 DRM_MODE_CONNECTOR_DSI);
654
655 ctx->power = devm_regulator_get(&dsi->dev, "power");
656 if (IS_ERR(ctx->power)) {
657 dev_err(&dsi->dev, "Couldn't get our power regulator\n");
658 return PTR_ERR(ctx->power);
659 }
660
661 ctx->reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW);
662 if (IS_ERR(ctx->reset)) {
663 dev_err(&dsi->dev, "Couldn't get our reset GPIO\n");
664 return PTR_ERR(ctx->reset);
665 }
666
667 ret = drm_panel_of_backlight(&ctx->panel);
668 if (ret)
669 return ret;
670
671 drm_panel_add(&ctx->panel);
672
673 dsi->mode_flags = MIPI_DSI_MODE_VIDEO_SYNC_PULSE;
674 dsi->format = MIPI_DSI_FMT_RGB888;
675 dsi->lanes = 4;
676
677 return mipi_dsi_attach(dsi);
678 }
679
ili9881c_dsi_remove(struct mipi_dsi_device * dsi)680 static int ili9881c_dsi_remove(struct mipi_dsi_device *dsi)
681 {
682 struct ili9881c *ctx = mipi_dsi_get_drvdata(dsi);
683
684 mipi_dsi_detach(dsi);
685 drm_panel_remove(&ctx->panel);
686
687 return 0;
688 }
689
690 static const struct ili9881c_desc lhr050h41_desc = {
691 .init = lhr050h41_init,
692 .init_length = ARRAY_SIZE(lhr050h41_init),
693 .mode = &lhr050h41_default_mode,
694 };
695
696 static const struct ili9881c_desc k101_im2byl02_desc = {
697 .init = k101_im2byl02_init,
698 .init_length = ARRAY_SIZE(k101_im2byl02_init),
699 .mode = &k101_im2byl02_default_mode,
700 };
701
702 static const struct of_device_id ili9881c_of_match[] = {
703 { .compatible = "bananapi,lhr050h41", .data = &lhr050h41_desc },
704 { .compatible = "feixin,k101-im2byl02", .data = &k101_im2byl02_desc },
705 { }
706 };
707 MODULE_DEVICE_TABLE(of, ili9881c_of_match);
708
709 static struct mipi_dsi_driver ili9881c_dsi_driver = {
710 .probe = ili9881c_dsi_probe,
711 .remove = ili9881c_dsi_remove,
712 .driver = {
713 .name = "ili9881c-dsi",
714 .of_match_table = ili9881c_of_match,
715 },
716 };
717 module_mipi_dsi_driver(ili9881c_dsi_driver);
718
719 MODULE_AUTHOR("Maxime Ripard <maxime.ripard@free-electrons.com>");
720 MODULE_DESCRIPTION("Ilitek ILI9881C Controller Driver");
721 MODULE_LICENSE("GPL v2");
722