1 | // SPDX-License-Identifier: GPL-2.0 |
2 | /* |
3 | * Panels based on the Ilitek ILI9882T display controller. |
4 | */ |
5 | #include <linux/delay.h> |
6 | #include <linux/gpio/consumer.h> |
7 | #include <linux/module.h> |
8 | #include <linux/of.h> |
9 | #include <linux/regulator/consumer.h> |
10 | |
11 | #include <drm/drm_connector.h> |
12 | #include <drm/drm_crtc.h> |
13 | #include <drm/drm_mipi_dsi.h> |
14 | #include <drm/drm_panel.h> |
15 | |
16 | #include <video/mipi_display.h> |
17 | |
18 | /* |
19 | * Use this descriptor struct to describe different panels using the |
20 | * Ilitek ILI9882T display controller. |
21 | */ |
22 | struct panel_desc { |
23 | const struct drm_display_mode *modes; |
24 | unsigned int bpc; |
25 | |
26 | /** |
27 | * @width_mm: width of the panel's active display area |
28 | * @height_mm: height of the panel's active display area |
29 | */ |
30 | struct { |
31 | unsigned int width_mm; |
32 | unsigned int height_mm; |
33 | } size; |
34 | |
35 | unsigned long mode_flags; |
36 | enum mipi_dsi_pixel_format format; |
37 | const struct panel_init_cmd *init_cmds; |
38 | unsigned int lanes; |
39 | }; |
40 | |
41 | struct ili9882t { |
42 | struct drm_panel base; |
43 | struct mipi_dsi_device *dsi; |
44 | |
45 | const struct panel_desc *desc; |
46 | |
47 | enum drm_panel_orientation orientation; |
48 | struct regulator *pp3300; |
49 | struct regulator *pp1800; |
50 | struct regulator *avee; |
51 | struct regulator *avdd; |
52 | struct gpio_desc *enable_gpio; |
53 | }; |
54 | |
55 | enum dsi_cmd_type { |
56 | INIT_DCS_CMD, |
57 | DELAY_CMD, |
58 | }; |
59 | |
60 | struct panel_init_cmd { |
61 | enum dsi_cmd_type type; |
62 | size_t len; |
63 | const char *data; |
64 | }; |
65 | |
66 | #define _INIT_DCS_CMD(...) { \ |
67 | .type = INIT_DCS_CMD, \ |
68 | .len = sizeof((char[]){__VA_ARGS__}), \ |
69 | .data = (char[]){__VA_ARGS__} } |
70 | |
71 | #define _INIT_DELAY_CMD(...) { \ |
72 | .type = DELAY_CMD,\ |
73 | .len = sizeof((char[]){__VA_ARGS__}), \ |
74 | .data = (char[]){__VA_ARGS__} } |
75 | |
76 | /* ILI9882-specific commands, add new commands as you decode them */ |
77 | #define ILI9882T_DCS_SWITCH_PAGE 0xFF |
78 | |
79 | #define _INIT_SWITCH_PAGE_CMD(page) \ |
80 | _INIT_DCS_CMD(ILI9882T_DCS_SWITCH_PAGE, 0x98, 0x82, (page)) |
81 | |
82 | static const struct panel_init_cmd starry_ili9882t_init_cmd[] = { |
83 | _INIT_DELAY_CMD(5), |
84 | _INIT_SWITCH_PAGE_CMD(0x01), |
85 | _INIT_DCS_CMD(0x00, 0x42), |
86 | _INIT_DCS_CMD(0x01, 0x11), |
87 | _INIT_DCS_CMD(0x02, 0x00), |
88 | _INIT_DCS_CMD(0x03, 0x00), |
89 | |
90 | _INIT_DCS_CMD(0x04, 0x01), |
91 | _INIT_DCS_CMD(0x05, 0x11), |
92 | _INIT_DCS_CMD(0x06, 0x00), |
93 | _INIT_DCS_CMD(0x07, 0x00), |
94 | |
95 | _INIT_DCS_CMD(0x08, 0x80), |
96 | _INIT_DCS_CMD(0x09, 0x81), |
97 | _INIT_DCS_CMD(0x0A, 0x71), |
98 | _INIT_DCS_CMD(0x0B, 0x00), |
99 | |
100 | _INIT_DCS_CMD(0x0C, 0x00), |
101 | _INIT_DCS_CMD(0x0E, 0x1A), |
102 | |
103 | _INIT_DCS_CMD(0x24, 0x00), |
104 | _INIT_DCS_CMD(0x25, 0x00), |
105 | _INIT_DCS_CMD(0x26, 0x00), |
106 | _INIT_DCS_CMD(0x27, 0x00), |
107 | |
108 | _INIT_DCS_CMD(0x2C, 0xD4), |
109 | _INIT_DCS_CMD(0xB9, 0x40), |
110 | |
111 | _INIT_DCS_CMD(0xB0, 0x11), |
112 | |
113 | _INIT_DCS_CMD(0xE6, 0x32), |
114 | _INIT_DCS_CMD(0xD1, 0x30), |
115 | |
116 | _INIT_DCS_CMD(0xD6, 0x55), |
117 | |
118 | _INIT_DCS_CMD(0xD0, 0x01), |
119 | _INIT_DCS_CMD(0xE3, 0x93), |
120 | _INIT_DCS_CMD(0xE4, 0x00), |
121 | _INIT_DCS_CMD(0xE5, 0x80), |
122 | |
123 | _INIT_DCS_CMD(0x31, 0x07), |
124 | _INIT_DCS_CMD(0x32, 0x07), |
125 | _INIT_DCS_CMD(0x33, 0x07), |
126 | _INIT_DCS_CMD(0x34, 0x07), |
127 | _INIT_DCS_CMD(0x35, 0x07), |
128 | _INIT_DCS_CMD(0x36, 0x01), |
129 | _INIT_DCS_CMD(0x37, 0x00), |
130 | _INIT_DCS_CMD(0x38, 0x28), |
131 | _INIT_DCS_CMD(0x39, 0x29), |
132 | _INIT_DCS_CMD(0x3A, 0x11), |
133 | _INIT_DCS_CMD(0x3B, 0x13), |
134 | _INIT_DCS_CMD(0x3C, 0x15), |
135 | _INIT_DCS_CMD(0x3D, 0x17), |
136 | _INIT_DCS_CMD(0x3E, 0x09), |
137 | _INIT_DCS_CMD(0x3F, 0x0D), |
138 | _INIT_DCS_CMD(0x40, 0x02), |
139 | _INIT_DCS_CMD(0x41, 0x02), |
140 | _INIT_DCS_CMD(0x42, 0x02), |
141 | _INIT_DCS_CMD(0x43, 0x02), |
142 | _INIT_DCS_CMD(0x44, 0x02), |
143 | _INIT_DCS_CMD(0x45, 0x02), |
144 | _INIT_DCS_CMD(0x46, 0x02), |
145 | |
146 | _INIT_DCS_CMD(0x47, 0x07), |
147 | _INIT_DCS_CMD(0x48, 0x07), |
148 | _INIT_DCS_CMD(0x49, 0x07), |
149 | _INIT_DCS_CMD(0x4A, 0x07), |
150 | _INIT_DCS_CMD(0x4B, 0x07), |
151 | _INIT_DCS_CMD(0x4C, 0x01), |
152 | _INIT_DCS_CMD(0x4D, 0x00), |
153 | _INIT_DCS_CMD(0x4E, 0x28), |
154 | _INIT_DCS_CMD(0x4F, 0x29), |
155 | _INIT_DCS_CMD(0x50, 0x10), |
156 | _INIT_DCS_CMD(0x51, 0x12), |
157 | _INIT_DCS_CMD(0x52, 0x14), |
158 | _INIT_DCS_CMD(0x53, 0x16), |
159 | _INIT_DCS_CMD(0x54, 0x08), |
160 | _INIT_DCS_CMD(0x55, 0x0C), |
161 | _INIT_DCS_CMD(0x56, 0x02), |
162 | _INIT_DCS_CMD(0x57, 0x02), |
163 | _INIT_DCS_CMD(0x58, 0x02), |
164 | _INIT_DCS_CMD(0x59, 0x02), |
165 | _INIT_DCS_CMD(0x5A, 0x02), |
166 | _INIT_DCS_CMD(0x5B, 0x02), |
167 | _INIT_DCS_CMD(0x5C, 0x02), |
168 | |
169 | _INIT_DCS_CMD(0x61, 0x07), |
170 | _INIT_DCS_CMD(0x62, 0x07), |
171 | _INIT_DCS_CMD(0x63, 0x07), |
172 | _INIT_DCS_CMD(0x64, 0x07), |
173 | _INIT_DCS_CMD(0x65, 0x07), |
174 | _INIT_DCS_CMD(0x66, 0x01), |
175 | _INIT_DCS_CMD(0x67, 0x00), |
176 | _INIT_DCS_CMD(0x68, 0x28), |
177 | _INIT_DCS_CMD(0x69, 0x29), |
178 | _INIT_DCS_CMD(0x6A, 0x16), |
179 | _INIT_DCS_CMD(0x6B, 0x14), |
180 | _INIT_DCS_CMD(0x6C, 0x12), |
181 | _INIT_DCS_CMD(0x6D, 0x10), |
182 | _INIT_DCS_CMD(0x6E, 0x0C), |
183 | _INIT_DCS_CMD(0x6F, 0x08), |
184 | _INIT_DCS_CMD(0x70, 0x02), |
185 | _INIT_DCS_CMD(0x71, 0x02), |
186 | _INIT_DCS_CMD(0x72, 0x02), |
187 | _INIT_DCS_CMD(0x73, 0x02), |
188 | _INIT_DCS_CMD(0x74, 0x02), |
189 | _INIT_DCS_CMD(0x75, 0x02), |
190 | _INIT_DCS_CMD(0x76, 0x02), |
191 | |
192 | _INIT_DCS_CMD(0x77, 0x07), |
193 | _INIT_DCS_CMD(0x78, 0x07), |
194 | _INIT_DCS_CMD(0x79, 0x07), |
195 | _INIT_DCS_CMD(0x7A, 0x07), |
196 | _INIT_DCS_CMD(0x7B, 0x07), |
197 | _INIT_DCS_CMD(0x7C, 0x01), |
198 | _INIT_DCS_CMD(0x7D, 0x00), |
199 | _INIT_DCS_CMD(0x7E, 0x28), |
200 | _INIT_DCS_CMD(0x7F, 0x29), |
201 | _INIT_DCS_CMD(0x80, 0x17), |
202 | _INIT_DCS_CMD(0x81, 0x15), |
203 | _INIT_DCS_CMD(0x82, 0x13), |
204 | _INIT_DCS_CMD(0x83, 0x11), |
205 | _INIT_DCS_CMD(0x84, 0x0D), |
206 | _INIT_DCS_CMD(0x85, 0x09), |
207 | _INIT_DCS_CMD(0x86, 0x02), |
208 | _INIT_DCS_CMD(0x87, 0x07), |
209 | _INIT_DCS_CMD(0x88, 0x07), |
210 | _INIT_DCS_CMD(0x89, 0x07), |
211 | _INIT_DCS_CMD(0x8A, 0x07), |
212 | _INIT_DCS_CMD(0x8B, 0x07), |
213 | _INIT_DCS_CMD(0x8C, 0x07), |
214 | |
215 | _INIT_SWITCH_PAGE_CMD(0x02), |
216 | _INIT_DCS_CMD(0x29, 0x3A), |
217 | _INIT_DCS_CMD(0x2A, 0x3B), |
218 | |
219 | _INIT_DCS_CMD(0x06, 0x01), |
220 | _INIT_DCS_CMD(0x07, 0x01), |
221 | _INIT_DCS_CMD(0x08, 0x0C), |
222 | _INIT_DCS_CMD(0x09, 0x44), |
223 | |
224 | _INIT_DCS_CMD(0x3C, 0x0A), |
225 | _INIT_DCS_CMD(0x39, 0x11), |
226 | _INIT_DCS_CMD(0x3D, 0x00), |
227 | _INIT_DCS_CMD(0x3A, 0x0C), |
228 | _INIT_DCS_CMD(0x3B, 0x44), |
229 | |
230 | _INIT_DCS_CMD(0x53, 0x1F), |
231 | _INIT_DCS_CMD(0x5E, 0x40), |
232 | _INIT_DCS_CMD(0x84, 0x00), |
233 | |
234 | _INIT_SWITCH_PAGE_CMD(0x03), |
235 | _INIT_DCS_CMD(0x20, 0x01), |
236 | _INIT_DCS_CMD(0x21, 0x3C), |
237 | _INIT_DCS_CMD(0x22, 0xFA), |
238 | |
239 | _INIT_SWITCH_PAGE_CMD(0x0A), |
240 | _INIT_DCS_CMD(0xE0, 0x01), |
241 | _INIT_DCS_CMD(0xE2, 0x01), |
242 | _INIT_DCS_CMD(0xE5, 0x91), |
243 | _INIT_DCS_CMD(0xE6, 0x3C), |
244 | _INIT_DCS_CMD(0xE7, 0x00), |
245 | _INIT_DCS_CMD(0xE8, 0xFA), |
246 | |
247 | _INIT_SWITCH_PAGE_CMD(0x12), |
248 | _INIT_DCS_CMD(0x87, 0x2C), |
249 | |
250 | _INIT_SWITCH_PAGE_CMD(0x05), |
251 | _INIT_DCS_CMD(0x73, 0xE5), |
252 | _INIT_DCS_CMD(0x7F, 0x6B), |
253 | _INIT_DCS_CMD(0x6D, 0xA4), |
254 | _INIT_DCS_CMD(0x79, 0x54), |
255 | _INIT_DCS_CMD(0x69, 0x97), |
256 | _INIT_DCS_CMD(0x6A, 0x97), |
257 | _INIT_DCS_CMD(0xA5, 0x3F), |
258 | _INIT_DCS_CMD(0x61, 0xDA), |
259 | _INIT_DCS_CMD(0xA7, 0xF1), |
260 | _INIT_DCS_CMD(0x5F, 0x01), |
261 | _INIT_DCS_CMD(0x62, 0x3F), |
262 | _INIT_DCS_CMD(0x1D, 0x90), |
263 | _INIT_DCS_CMD(0x86, 0x87), |
264 | |
265 | _INIT_SWITCH_PAGE_CMD(0x06), |
266 | _INIT_DCS_CMD(0xC0, 0x80), |
267 | _INIT_DCS_CMD(0xC1, 0x07), |
268 | _INIT_DCS_CMD(0xCA, 0x58), |
269 | _INIT_DCS_CMD(0xCB, 0x02), |
270 | _INIT_DCS_CMD(0xCE, 0x58), |
271 | _INIT_DCS_CMD(0xCF, 0x02), |
272 | _INIT_DCS_CMD(0x67, 0x60), |
273 | _INIT_DCS_CMD(0x10, 0x00), |
274 | _INIT_DCS_CMD(0x92, 0x22), |
275 | _INIT_DCS_CMD(0xD3, 0x08), |
276 | _INIT_DCS_CMD(0xD6, 0x55), |
277 | _INIT_DCS_CMD(0xDC, 0x38), |
278 | |
279 | _INIT_SWITCH_PAGE_CMD(0x08), |
280 | _INIT_DCS_CMD(0xE0, 0x00, 0x10, 0x2A, 0x4D, 0x61, 0x56, 0x6A, 0x6E, 0x79, 0x76, 0x8F, 0x95, 0x98, 0xAE, 0xAA, 0xB2, 0xBB, 0xCE, 0xC6, 0xBD, 0xD5, 0xE2, 0xE8), |
281 | _INIT_DCS_CMD(0xE1, 0x00, 0x10, 0x2A, 0x4D, 0x61, 0x56, 0x6A, 0x6E, 0x79, 0x76, 0x8F, 0x95, 0x98, 0xAE, 0xAA, 0xB2, 0xBB, 0xCE, 0xC6, 0xBD, 0xD5, 0xE2, 0xE8), |
282 | |
283 | _INIT_SWITCH_PAGE_CMD(0x04), |
284 | _INIT_DCS_CMD(0xBA, 0x81), |
285 | |
286 | _INIT_SWITCH_PAGE_CMD(0x0C), |
287 | _INIT_DCS_CMD(0x00, 0x02), |
288 | _INIT_DCS_CMD(0x01, 0x00), |
289 | _INIT_DCS_CMD(0x02, 0x03), |
290 | _INIT_DCS_CMD(0x03, 0x01), |
291 | _INIT_DCS_CMD(0x04, 0x03), |
292 | _INIT_DCS_CMD(0x05, 0x02), |
293 | _INIT_DCS_CMD(0x06, 0x04), |
294 | _INIT_DCS_CMD(0x07, 0x03), |
295 | _INIT_DCS_CMD(0x08, 0x03), |
296 | _INIT_DCS_CMD(0x09, 0x04), |
297 | _INIT_DCS_CMD(0x0A, 0x04), |
298 | _INIT_DCS_CMD(0x0B, 0x05), |
299 | _INIT_DCS_CMD(0x0C, 0x04), |
300 | _INIT_DCS_CMD(0x0D, 0x06), |
301 | _INIT_DCS_CMD(0x0E, 0x05), |
302 | _INIT_DCS_CMD(0x0F, 0x07), |
303 | _INIT_DCS_CMD(0x10, 0x04), |
304 | _INIT_DCS_CMD(0x11, 0x08), |
305 | _INIT_DCS_CMD(0x12, 0x05), |
306 | _INIT_DCS_CMD(0x13, 0x09), |
307 | _INIT_DCS_CMD(0x14, 0x05), |
308 | _INIT_DCS_CMD(0x15, 0x0A), |
309 | _INIT_DCS_CMD(0x16, 0x06), |
310 | _INIT_DCS_CMD(0x17, 0x0B), |
311 | _INIT_DCS_CMD(0x18, 0x05), |
312 | _INIT_DCS_CMD(0x19, 0x0C), |
313 | _INIT_DCS_CMD(0x1A, 0x06), |
314 | _INIT_DCS_CMD(0x1B, 0x0D), |
315 | _INIT_DCS_CMD(0x1C, 0x06), |
316 | _INIT_DCS_CMD(0x1D, 0x0E), |
317 | _INIT_DCS_CMD(0x1E, 0x07), |
318 | _INIT_DCS_CMD(0x1F, 0x0F), |
319 | _INIT_DCS_CMD(0x20, 0x06), |
320 | _INIT_DCS_CMD(0x21, 0x10), |
321 | _INIT_DCS_CMD(0x22, 0x07), |
322 | _INIT_DCS_CMD(0x23, 0x11), |
323 | _INIT_DCS_CMD(0x24, 0x07), |
324 | _INIT_DCS_CMD(0x25, 0x12), |
325 | _INIT_DCS_CMD(0x26, 0x08), |
326 | _INIT_DCS_CMD(0x27, 0x13), |
327 | _INIT_DCS_CMD(0x28, 0x07), |
328 | _INIT_DCS_CMD(0x29, 0x14), |
329 | _INIT_DCS_CMD(0x2A, 0x08), |
330 | _INIT_DCS_CMD(0x2B, 0x15), |
331 | _INIT_DCS_CMD(0x2C, 0x08), |
332 | _INIT_DCS_CMD(0x2D, 0x16), |
333 | _INIT_DCS_CMD(0x2E, 0x09), |
334 | _INIT_DCS_CMD(0x2F, 0x17), |
335 | _INIT_DCS_CMD(0x30, 0x08), |
336 | _INIT_DCS_CMD(0x31, 0x18), |
337 | _INIT_DCS_CMD(0x32, 0x09), |
338 | _INIT_DCS_CMD(0x33, 0x19), |
339 | _INIT_DCS_CMD(0x34, 0x09), |
340 | _INIT_DCS_CMD(0x35, 0x1A), |
341 | _INIT_DCS_CMD(0x36, 0x0A), |
342 | _INIT_DCS_CMD(0x37, 0x1B), |
343 | _INIT_DCS_CMD(0x38, 0x0A), |
344 | _INIT_DCS_CMD(0x39, 0x1C), |
345 | _INIT_DCS_CMD(0x3A, 0x0A), |
346 | _INIT_DCS_CMD(0x3B, 0x1D), |
347 | _INIT_DCS_CMD(0x3C, 0x0A), |
348 | _INIT_DCS_CMD(0x3D, 0x1E), |
349 | _INIT_DCS_CMD(0x3E, 0x0A), |
350 | _INIT_DCS_CMD(0x3F, 0x1F), |
351 | |
352 | _INIT_SWITCH_PAGE_CMD(0x04), |
353 | _INIT_DCS_CMD(0xBA, 0x01), |
354 | |
355 | _INIT_SWITCH_PAGE_CMD(0x0E), |
356 | _INIT_DCS_CMD(0x02, 0x0C), |
357 | _INIT_DCS_CMD(0x20, 0x10), |
358 | _INIT_DCS_CMD(0x25, 0x16), |
359 | _INIT_DCS_CMD(0x26, 0xE0), |
360 | _INIT_DCS_CMD(0x27, 0x00), |
361 | _INIT_DCS_CMD(0x29, 0x71), |
362 | _INIT_DCS_CMD(0x2A, 0x46), |
363 | _INIT_DCS_CMD(0x2B, 0x1F), |
364 | _INIT_DCS_CMD(0x2D, 0xC7), |
365 | _INIT_DCS_CMD(0x31, 0x02), |
366 | _INIT_DCS_CMD(0x32, 0xDF), |
367 | _INIT_DCS_CMD(0x33, 0x5A), |
368 | _INIT_DCS_CMD(0x34, 0xC0), |
369 | _INIT_DCS_CMD(0x35, 0x5A), |
370 | _INIT_DCS_CMD(0x36, 0xC0), |
371 | _INIT_DCS_CMD(0x38, 0x65), |
372 | _INIT_DCS_CMD(0x80, 0x3E), |
373 | _INIT_DCS_CMD(0x81, 0xA0), |
374 | _INIT_DCS_CMD(0xB0, 0x01), |
375 | _INIT_DCS_CMD(0xB1, 0xCC), |
376 | _INIT_DCS_CMD(0xC0, 0x12), |
377 | _INIT_DCS_CMD(0xC2, 0xCC), |
378 | _INIT_DCS_CMD(0xC3, 0xCC), |
379 | _INIT_DCS_CMD(0xC4, 0xCC), |
380 | _INIT_DCS_CMD(0xC5, 0xCC), |
381 | _INIT_DCS_CMD(0xC6, 0xCC), |
382 | _INIT_DCS_CMD(0xC7, 0xCC), |
383 | _INIT_DCS_CMD(0xC8, 0xCC), |
384 | _INIT_DCS_CMD(0xC9, 0xCC), |
385 | _INIT_DCS_CMD(0x30, 0x00), |
386 | _INIT_DCS_CMD(0x00, 0x81), |
387 | _INIT_DCS_CMD(0x08, 0x02), |
388 | _INIT_DCS_CMD(0x09, 0x00), |
389 | _INIT_DCS_CMD(0x07, 0x21), |
390 | _INIT_DCS_CMD(0x04, 0x10), |
391 | |
392 | _INIT_SWITCH_PAGE_CMD(0x1E), |
393 | _INIT_DCS_CMD(0x60, 0x00), |
394 | _INIT_DCS_CMD(0x64, 0x00), |
395 | _INIT_DCS_CMD(0x6D, 0x00), |
396 | |
397 | _INIT_SWITCH_PAGE_CMD(0x0B), |
398 | _INIT_DCS_CMD(0xA6, 0x44), |
399 | _INIT_DCS_CMD(0xA7, 0xB6), |
400 | _INIT_DCS_CMD(0xA8, 0x03), |
401 | _INIT_DCS_CMD(0xA9, 0x03), |
402 | _INIT_DCS_CMD(0xAA, 0x51), |
403 | _INIT_DCS_CMD(0xAB, 0x51), |
404 | _INIT_DCS_CMD(0xAC, 0x04), |
405 | _INIT_DCS_CMD(0xBD, 0x92), |
406 | _INIT_DCS_CMD(0xBE, 0xA1), |
407 | |
408 | _INIT_SWITCH_PAGE_CMD(0x05), |
409 | _INIT_DCS_CMD(0x86, 0x87), |
410 | |
411 | _INIT_SWITCH_PAGE_CMD(0x06), |
412 | _INIT_DCS_CMD(0x92, 0x22), |
413 | |
414 | _INIT_SWITCH_PAGE_CMD(0x00), |
415 | _INIT_DCS_CMD(MIPI_DCS_EXIT_SLEEP_MODE), |
416 | _INIT_DELAY_CMD(120), |
417 | _INIT_DCS_CMD(MIPI_DCS_SET_DISPLAY_ON), |
418 | _INIT_DELAY_CMD(20), |
419 | {}, |
420 | }; |
421 | |
422 | static inline struct ili9882t *to_ili9882t(struct drm_panel *panel) |
423 | { |
424 | return container_of(panel, struct ili9882t, base); |
425 | } |
426 | |
427 | static int ili9882t_init_dcs_cmd(struct ili9882t *ili) |
428 | { |
429 | struct mipi_dsi_device *dsi = ili->dsi; |
430 | struct drm_panel *panel = &ili->base; |
431 | int i, err = 0; |
432 | |
433 | if (ili->desc->init_cmds) { |
434 | const struct panel_init_cmd *init_cmds = ili->desc->init_cmds; |
435 | |
436 | for (i = 0; init_cmds[i].len != 0; i++) { |
437 | const struct panel_init_cmd *cmd = &init_cmds[i]; |
438 | |
439 | switch (cmd->type) { |
440 | case DELAY_CMD: |
441 | msleep(msecs: cmd->data[0]); |
442 | err = 0; |
443 | break; |
444 | |
445 | case INIT_DCS_CMD: |
446 | err = mipi_dsi_dcs_write(dsi, cmd: cmd->data[0], |
447 | data: cmd->len <= 1 ? NULL : |
448 | &cmd->data[1], |
449 | len: cmd->len - 1); |
450 | break; |
451 | |
452 | default: |
453 | err = -EINVAL; |
454 | } |
455 | |
456 | if (err < 0) { |
457 | dev_err(panel->dev, |
458 | "failed to write command %u\n" , i); |
459 | return err; |
460 | } |
461 | } |
462 | } |
463 | return 0; |
464 | } |
465 | |
466 | static int ili9882t_switch_page(struct mipi_dsi_device *dsi, u8 page) |
467 | { |
468 | int ret; |
469 | const struct panel_init_cmd cmd = _INIT_SWITCH_PAGE_CMD(page); |
470 | |
471 | ret = mipi_dsi_dcs_write(dsi, cmd: cmd.data[0], |
472 | data: cmd.len <= 1 ? NULL : |
473 | &cmd.data[1], |
474 | len: cmd.len - 1); |
475 | if (ret) { |
476 | dev_err(&dsi->dev, |
477 | "error switching panel controller page (%d)\n" , ret); |
478 | return ret; |
479 | } |
480 | |
481 | return 0; |
482 | } |
483 | |
484 | static int ili9882t_enter_sleep_mode(struct ili9882t *ili) |
485 | { |
486 | struct mipi_dsi_device *dsi = ili->dsi; |
487 | int ret; |
488 | |
489 | dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; |
490 | |
491 | ret = mipi_dsi_dcs_set_display_off(dsi); |
492 | if (ret < 0) |
493 | return ret; |
494 | |
495 | ret = mipi_dsi_dcs_enter_sleep_mode(dsi); |
496 | if (ret < 0) |
497 | return ret; |
498 | |
499 | return 0; |
500 | } |
501 | |
502 | static int ili9882t_disable(struct drm_panel *panel) |
503 | { |
504 | struct ili9882t *ili = to_ili9882t(panel); |
505 | struct mipi_dsi_device *dsi = ili->dsi; |
506 | int ret; |
507 | |
508 | ili9882t_switch_page(dsi, page: 0x00); |
509 | ret = ili9882t_enter_sleep_mode(ili); |
510 | if (ret < 0) { |
511 | dev_err(panel->dev, "failed to set panel off: %d\n" , ret); |
512 | return ret; |
513 | } |
514 | |
515 | msleep(msecs: 150); |
516 | |
517 | return 0; |
518 | } |
519 | |
520 | static int ili9882t_unprepare(struct drm_panel *panel) |
521 | { |
522 | struct ili9882t *ili = to_ili9882t(panel); |
523 | |
524 | gpiod_set_value(desc: ili->enable_gpio, value: 0); |
525 | usleep_range(min: 1000, max: 2000); |
526 | regulator_disable(regulator: ili->avee); |
527 | regulator_disable(regulator: ili->avdd); |
528 | usleep_range(min: 5000, max: 7000); |
529 | regulator_disable(regulator: ili->pp1800); |
530 | regulator_disable(regulator: ili->pp3300); |
531 | |
532 | return 0; |
533 | } |
534 | |
535 | static int ili9882t_prepare(struct drm_panel *panel) |
536 | { |
537 | struct ili9882t *ili = to_ili9882t(panel); |
538 | int ret; |
539 | |
540 | gpiod_set_value(desc: ili->enable_gpio, value: 0); |
541 | usleep_range(min: 1000, max: 1500); |
542 | |
543 | ret = regulator_enable(regulator: ili->pp3300); |
544 | if (ret < 0) |
545 | return ret; |
546 | |
547 | ret = regulator_enable(regulator: ili->pp1800); |
548 | if (ret < 0) |
549 | return ret; |
550 | |
551 | usleep_range(min: 3000, max: 5000); |
552 | |
553 | ret = regulator_enable(regulator: ili->avdd); |
554 | if (ret < 0) |
555 | goto poweroff1v8; |
556 | ret = regulator_enable(regulator: ili->avee); |
557 | if (ret < 0) |
558 | goto poweroffavdd; |
559 | |
560 | usleep_range(min: 10000, max: 11000); |
561 | |
562 | // MIPI needs to keep the LP11 state before the lcm_reset pin is pulled high |
563 | mipi_dsi_dcs_nop(dsi: ili->dsi); |
564 | usleep_range(min: 1000, max: 2000); |
565 | |
566 | gpiod_set_value(desc: ili->enable_gpio, value: 1); |
567 | usleep_range(min: 1000, max: 2000); |
568 | gpiod_set_value(desc: ili->enable_gpio, value: 0); |
569 | msleep(msecs: 50); |
570 | gpiod_set_value(desc: ili->enable_gpio, value: 1); |
571 | usleep_range(min: 6000, max: 10000); |
572 | |
573 | ret = ili9882t_init_dcs_cmd(ili); |
574 | if (ret < 0) { |
575 | dev_err(panel->dev, "failed to init panel: %d\n" , ret); |
576 | goto poweroff; |
577 | } |
578 | |
579 | return 0; |
580 | |
581 | poweroff: |
582 | regulator_disable(regulator: ili->avee); |
583 | poweroffavdd: |
584 | regulator_disable(regulator: ili->avdd); |
585 | poweroff1v8: |
586 | usleep_range(min: 5000, max: 7000); |
587 | regulator_disable(regulator: ili->pp1800); |
588 | gpiod_set_value(desc: ili->enable_gpio, value: 0); |
589 | |
590 | return ret; |
591 | } |
592 | |
593 | static int ili9882t_enable(struct drm_panel *panel) |
594 | { |
595 | msleep(msecs: 130); |
596 | return 0; |
597 | } |
598 | |
599 | static const struct drm_display_mode starry_ili9882t_default_mode = { |
600 | .clock = 165280, |
601 | .hdisplay = 1200, |
602 | .hsync_start = 1200 + 72, |
603 | .hsync_end = 1200 + 72 + 30, |
604 | .htotal = 1200 + 72 + 30 + 72, |
605 | .vdisplay = 1920, |
606 | .vsync_start = 1920 + 68, |
607 | .vsync_end = 1920 + 68 + 2, |
608 | .vtotal = 1920 + 68 + 2 + 10, |
609 | .type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED, |
610 | }; |
611 | |
612 | static const struct panel_desc starry_ili9882t_desc = { |
613 | .modes = &starry_ili9882t_default_mode, |
614 | .bpc = 8, |
615 | .size = { |
616 | .width_mm = 141, |
617 | .height_mm = 226, |
618 | }, |
619 | .lanes = 4, |
620 | .format = MIPI_DSI_FMT_RGB888, |
621 | .mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE | |
622 | MIPI_DSI_MODE_LPM, |
623 | .init_cmds = starry_ili9882t_init_cmd, |
624 | }; |
625 | |
626 | static int ili9882t_get_modes(struct drm_panel *panel, |
627 | struct drm_connector *connector) |
628 | { |
629 | struct ili9882t *ili = to_ili9882t(panel); |
630 | const struct drm_display_mode *m = ili->desc->modes; |
631 | struct drm_display_mode *mode; |
632 | |
633 | mode = drm_mode_duplicate(dev: connector->dev, mode: m); |
634 | if (!mode) { |
635 | dev_err(panel->dev, "failed to add mode %ux%u@%u\n" , |
636 | m->hdisplay, m->vdisplay, drm_mode_vrefresh(m)); |
637 | return -ENOMEM; |
638 | } |
639 | |
640 | mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; |
641 | drm_mode_set_name(mode); |
642 | drm_mode_probed_add(connector, mode); |
643 | |
644 | connector->display_info.width_mm = ili->desc->size.width_mm; |
645 | connector->display_info.height_mm = ili->desc->size.height_mm; |
646 | connector->display_info.bpc = ili->desc->bpc; |
647 | |
648 | return 1; |
649 | } |
650 | |
651 | static enum drm_panel_orientation ili9882t_get_orientation(struct drm_panel *panel) |
652 | { |
653 | struct ili9882t *ili = to_ili9882t(panel); |
654 | |
655 | return ili->orientation; |
656 | } |
657 | |
658 | static const struct drm_panel_funcs ili9882t_funcs = { |
659 | .disable = ili9882t_disable, |
660 | .unprepare = ili9882t_unprepare, |
661 | .prepare = ili9882t_prepare, |
662 | .enable = ili9882t_enable, |
663 | .get_modes = ili9882t_get_modes, |
664 | .get_orientation = ili9882t_get_orientation, |
665 | }; |
666 | |
667 | static int ili9882t_add(struct ili9882t *ili) |
668 | { |
669 | struct device *dev = &ili->dsi->dev; |
670 | int err; |
671 | |
672 | ili->avdd = devm_regulator_get(dev, id: "avdd" ); |
673 | if (IS_ERR(ptr: ili->avdd)) |
674 | return PTR_ERR(ptr: ili->avdd); |
675 | |
676 | ili->avee = devm_regulator_get(dev, id: "avee" ); |
677 | if (IS_ERR(ptr: ili->avee)) |
678 | return PTR_ERR(ptr: ili->avee); |
679 | |
680 | ili->pp3300 = devm_regulator_get(dev, id: "pp3300" ); |
681 | if (IS_ERR(ptr: ili->pp3300)) |
682 | return PTR_ERR(ptr: ili->pp3300); |
683 | |
684 | ili->pp1800 = devm_regulator_get(dev, id: "pp1800" ); |
685 | if (IS_ERR(ptr: ili->pp1800)) |
686 | return PTR_ERR(ptr: ili->pp1800); |
687 | |
688 | ili->enable_gpio = devm_gpiod_get(dev, con_id: "enable" , flags: GPIOD_OUT_LOW); |
689 | if (IS_ERR(ptr: ili->enable_gpio)) { |
690 | dev_err(dev, "cannot get reset-gpios %ld\n" , |
691 | PTR_ERR(ili->enable_gpio)); |
692 | return PTR_ERR(ptr: ili->enable_gpio); |
693 | } |
694 | |
695 | gpiod_set_value(desc: ili->enable_gpio, value: 0); |
696 | |
697 | drm_panel_init(panel: &ili->base, dev, funcs: &ili9882t_funcs, |
698 | DRM_MODE_CONNECTOR_DSI); |
699 | err = of_drm_get_panel_orientation(np: dev->of_node, orientation: &ili->orientation); |
700 | if (err < 0) { |
701 | dev_err(dev, "%pOF: failed to get orientation %d\n" , dev->of_node, err); |
702 | return err; |
703 | } |
704 | |
705 | err = drm_panel_of_backlight(panel: &ili->base); |
706 | if (err) |
707 | return err; |
708 | |
709 | ili->base.funcs = &ili9882t_funcs; |
710 | ili->base.dev = &ili->dsi->dev; |
711 | |
712 | drm_panel_add(panel: &ili->base); |
713 | |
714 | return 0; |
715 | } |
716 | |
717 | static int ili9882t_probe(struct mipi_dsi_device *dsi) |
718 | { |
719 | struct ili9882t *ili; |
720 | int ret; |
721 | const struct panel_desc *desc; |
722 | |
723 | ili = devm_kzalloc(dev: &dsi->dev, size: sizeof(*ili), GFP_KERNEL); |
724 | if (!ili) |
725 | return -ENOMEM; |
726 | |
727 | desc = of_device_get_match_data(dev: &dsi->dev); |
728 | dsi->lanes = desc->lanes; |
729 | dsi->format = desc->format; |
730 | dsi->mode_flags = desc->mode_flags; |
731 | ili->desc = desc; |
732 | ili->dsi = dsi; |
733 | ret = ili9882t_add(ili); |
734 | if (ret < 0) |
735 | return ret; |
736 | |
737 | mipi_dsi_set_drvdata(dsi, data: ili); |
738 | |
739 | ret = mipi_dsi_attach(dsi); |
740 | if (ret) |
741 | drm_panel_remove(panel: &ili->base); |
742 | |
743 | return ret; |
744 | } |
745 | |
746 | static void ili9882t_remove(struct mipi_dsi_device *dsi) |
747 | { |
748 | struct ili9882t *ili = mipi_dsi_get_drvdata(dsi); |
749 | int ret; |
750 | |
751 | ret = mipi_dsi_detach(dsi); |
752 | if (ret < 0) |
753 | dev_err(&dsi->dev, "failed to detach from DSI host: %d\n" , ret); |
754 | |
755 | if (ili->base.dev) |
756 | drm_panel_remove(panel: &ili->base); |
757 | } |
758 | |
759 | static const struct of_device_id ili9882t_of_match[] = { |
760 | { .compatible = "starry,ili9882t" , |
761 | .data = &starry_ili9882t_desc |
762 | }, |
763 | { /* sentinel */ } |
764 | }; |
765 | MODULE_DEVICE_TABLE(of, ili9882t_of_match); |
766 | |
767 | static struct mipi_dsi_driver ili9882t_driver = { |
768 | .driver = { |
769 | .name = "panel-ili9882t" , |
770 | .of_match_table = ili9882t_of_match, |
771 | }, |
772 | .probe = ili9882t_probe, |
773 | .remove = ili9882t_remove, |
774 | }; |
775 | module_mipi_dsi_driver(ili9882t_driver); |
776 | |
777 | MODULE_AUTHOR("Linus Walleij <linus.walleij@linaro.org>" ); |
778 | MODULE_DESCRIPTION("Ilitek ILI9882T-based panels driver" ); |
779 | MODULE_LICENSE("GPL" ); |
780 | |