1 // SPDX-License-Identifier: GPL-2.0-only
2 // Copyright (c) 2024 Collabora
3
4 #include <linux/delay.h>
5 #include <linux/gpio/consumer.h>
6 #include <linux/module.h>
7 #include <linux/property.h>
8 #include <linux/regulator/consumer.h>
9
10 #include <drm/drm_mipi_dsi.h>
11 #include <drm/drm_probe_helper.h>
12 #include <drm/drm_modes.h>
13 #include <drm/drm_panel.h>
14
15 struct raydium_rm67200_panel_info {
16 struct drm_display_mode mode;
17 const struct regulator_bulk_data *regulators;
18 int num_regulators;
19 void (*panel_setup)(struct mipi_dsi_multi_context *ctx);
20 };
21
22 struct raydium_rm67200 {
23 struct drm_panel panel;
24 const struct raydium_rm67200_panel_info *panel_info;
25 struct mipi_dsi_device *dsi;
26 struct gpio_desc *reset_gpio;
27 struct regulator_bulk_data *supplies;
28 int num_supplies;
29 };
30
to_raydium_rm67200(struct drm_panel * panel)31 static inline struct raydium_rm67200 *to_raydium_rm67200(struct drm_panel *panel)
32 {
33 return container_of(panel, struct raydium_rm67200, panel);
34 }
35
raydium_rm67200_reset(struct raydium_rm67200 * ctx)36 static void raydium_rm67200_reset(struct raydium_rm67200 *ctx)
37 {
38 if (ctx->reset_gpio) {
39 gpiod_set_value_cansleep(ctx->reset_gpio, 0);
40 msleep(60);
41 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
42 msleep(60);
43 gpiod_set_value_cansleep(ctx->reset_gpio, 0);
44 msleep(60);
45 }
46 }
47
raydium_rm67200_write(struct mipi_dsi_multi_context * ctx,u8 arg1,u8 arg2)48 static void raydium_rm67200_write(struct mipi_dsi_multi_context *ctx,
49 u8 arg1, u8 arg2)
50 {
51 u8 d[] = { arg1, arg2 };
52
53 mipi_dsi_generic_write_multi(ctx, d, ARRAY_SIZE(d));
54 }
55
w552793baa_setup(struct mipi_dsi_multi_context * ctx)56 static void w552793baa_setup(struct mipi_dsi_multi_context *ctx)
57 {
58 raydium_rm67200_write(ctx, 0xfe, 0x21);
59 raydium_rm67200_write(ctx, 0x04, 0x00);
60 raydium_rm67200_write(ctx, 0x00, 0x64);
61 raydium_rm67200_write(ctx, 0x2a, 0x00);
62 raydium_rm67200_write(ctx, 0x26, 0x64);
63 raydium_rm67200_write(ctx, 0x54, 0x00);
64 raydium_rm67200_write(ctx, 0x50, 0x64);
65 raydium_rm67200_write(ctx, 0x7b, 0x00);
66 raydium_rm67200_write(ctx, 0x77, 0x64);
67 raydium_rm67200_write(ctx, 0xa2, 0x00);
68 raydium_rm67200_write(ctx, 0x9d, 0x64);
69 raydium_rm67200_write(ctx, 0xc9, 0x00);
70 raydium_rm67200_write(ctx, 0xc5, 0x64);
71 raydium_rm67200_write(ctx, 0x01, 0x71);
72 raydium_rm67200_write(ctx, 0x27, 0x71);
73 raydium_rm67200_write(ctx, 0x51, 0x71);
74 raydium_rm67200_write(ctx, 0x78, 0x71);
75 raydium_rm67200_write(ctx, 0x9e, 0x71);
76 raydium_rm67200_write(ctx, 0xc6, 0x71);
77 raydium_rm67200_write(ctx, 0x02, 0x89);
78 raydium_rm67200_write(ctx, 0x28, 0x89);
79 raydium_rm67200_write(ctx, 0x52, 0x89);
80 raydium_rm67200_write(ctx, 0x79, 0x89);
81 raydium_rm67200_write(ctx, 0x9f, 0x89);
82 raydium_rm67200_write(ctx, 0xc7, 0x89);
83 raydium_rm67200_write(ctx, 0x03, 0x9e);
84 raydium_rm67200_write(ctx, 0x29, 0x9e);
85 raydium_rm67200_write(ctx, 0x53, 0x9e);
86 raydium_rm67200_write(ctx, 0x7a, 0x9e);
87 raydium_rm67200_write(ctx, 0xa0, 0x9e);
88 raydium_rm67200_write(ctx, 0xc8, 0x9e);
89 raydium_rm67200_write(ctx, 0x09, 0x00);
90 raydium_rm67200_write(ctx, 0x05, 0xb0);
91 raydium_rm67200_write(ctx, 0x31, 0x00);
92 raydium_rm67200_write(ctx, 0x2b, 0xb0);
93 raydium_rm67200_write(ctx, 0x5a, 0x00);
94 raydium_rm67200_write(ctx, 0x55, 0xb0);
95 raydium_rm67200_write(ctx, 0x80, 0x00);
96 raydium_rm67200_write(ctx, 0x7c, 0xb0);
97 raydium_rm67200_write(ctx, 0xa7, 0x00);
98 raydium_rm67200_write(ctx, 0xa3, 0xb0);
99 raydium_rm67200_write(ctx, 0xce, 0x00);
100 raydium_rm67200_write(ctx, 0xca, 0xb0);
101 raydium_rm67200_write(ctx, 0x06, 0xc0);
102 raydium_rm67200_write(ctx, 0x2d, 0xc0);
103 raydium_rm67200_write(ctx, 0x56, 0xc0);
104 raydium_rm67200_write(ctx, 0x7d, 0xc0);
105 raydium_rm67200_write(ctx, 0xa4, 0xc0);
106 raydium_rm67200_write(ctx, 0xcb, 0xc0);
107 raydium_rm67200_write(ctx, 0x07, 0xcf);
108 raydium_rm67200_write(ctx, 0x2f, 0xcf);
109 raydium_rm67200_write(ctx, 0x58, 0xcf);
110 raydium_rm67200_write(ctx, 0x7e, 0xcf);
111 raydium_rm67200_write(ctx, 0xa5, 0xcf);
112 raydium_rm67200_write(ctx, 0xcc, 0xcf);
113 raydium_rm67200_write(ctx, 0x08, 0xdd);
114 raydium_rm67200_write(ctx, 0x30, 0xdd);
115 raydium_rm67200_write(ctx, 0x59, 0xdd);
116 raydium_rm67200_write(ctx, 0x7f, 0xdd);
117 raydium_rm67200_write(ctx, 0xa6, 0xdd);
118 raydium_rm67200_write(ctx, 0xcd, 0xdd);
119 raydium_rm67200_write(ctx, 0x0e, 0x15);
120 raydium_rm67200_write(ctx, 0x0a, 0xe9);
121 raydium_rm67200_write(ctx, 0x36, 0x15);
122 raydium_rm67200_write(ctx, 0x32, 0xe9);
123 raydium_rm67200_write(ctx, 0x5f, 0x15);
124 raydium_rm67200_write(ctx, 0x5b, 0xe9);
125 raydium_rm67200_write(ctx, 0x85, 0x15);
126 raydium_rm67200_write(ctx, 0x81, 0xe9);
127 raydium_rm67200_write(ctx, 0xad, 0x15);
128 raydium_rm67200_write(ctx, 0xa9, 0xe9);
129 raydium_rm67200_write(ctx, 0xd3, 0x15);
130 raydium_rm67200_write(ctx, 0xcf, 0xe9);
131 raydium_rm67200_write(ctx, 0x0b, 0x14);
132 raydium_rm67200_write(ctx, 0x33, 0x14);
133 raydium_rm67200_write(ctx, 0x5c, 0x14);
134 raydium_rm67200_write(ctx, 0x82, 0x14);
135 raydium_rm67200_write(ctx, 0xaa, 0x14);
136 raydium_rm67200_write(ctx, 0xd0, 0x14);
137 raydium_rm67200_write(ctx, 0x0c, 0x36);
138 raydium_rm67200_write(ctx, 0x34, 0x36);
139 raydium_rm67200_write(ctx, 0x5d, 0x36);
140 raydium_rm67200_write(ctx, 0x83, 0x36);
141 raydium_rm67200_write(ctx, 0xab, 0x36);
142 raydium_rm67200_write(ctx, 0xd1, 0x36);
143 raydium_rm67200_write(ctx, 0x0d, 0x6b);
144 raydium_rm67200_write(ctx, 0x35, 0x6b);
145 raydium_rm67200_write(ctx, 0x5e, 0x6b);
146 raydium_rm67200_write(ctx, 0x84, 0x6b);
147 raydium_rm67200_write(ctx, 0xac, 0x6b);
148 raydium_rm67200_write(ctx, 0xd2, 0x6b);
149 raydium_rm67200_write(ctx, 0x13, 0x5a);
150 raydium_rm67200_write(ctx, 0x0f, 0x94);
151 raydium_rm67200_write(ctx, 0x3b, 0x5a);
152 raydium_rm67200_write(ctx, 0x37, 0x94);
153 raydium_rm67200_write(ctx, 0x64, 0x5a);
154 raydium_rm67200_write(ctx, 0x60, 0x94);
155 raydium_rm67200_write(ctx, 0x8a, 0x5a);
156 raydium_rm67200_write(ctx, 0x86, 0x94);
157 raydium_rm67200_write(ctx, 0xb2, 0x5a);
158 raydium_rm67200_write(ctx, 0xae, 0x94);
159 raydium_rm67200_write(ctx, 0xd8, 0x5a);
160 raydium_rm67200_write(ctx, 0xd4, 0x94);
161 raydium_rm67200_write(ctx, 0x10, 0xd1);
162 raydium_rm67200_write(ctx, 0x38, 0xd1);
163 raydium_rm67200_write(ctx, 0x61, 0xd1);
164 raydium_rm67200_write(ctx, 0x87, 0xd1);
165 raydium_rm67200_write(ctx, 0xaf, 0xd1);
166 raydium_rm67200_write(ctx, 0xd5, 0xd1);
167 raydium_rm67200_write(ctx, 0x11, 0x04);
168 raydium_rm67200_write(ctx, 0x39, 0x04);
169 raydium_rm67200_write(ctx, 0x62, 0x04);
170 raydium_rm67200_write(ctx, 0x88, 0x04);
171 raydium_rm67200_write(ctx, 0xb0, 0x04);
172 raydium_rm67200_write(ctx, 0xd6, 0x04);
173 raydium_rm67200_write(ctx, 0x12, 0x05);
174 raydium_rm67200_write(ctx, 0x3a, 0x05);
175 raydium_rm67200_write(ctx, 0x63, 0x05);
176 raydium_rm67200_write(ctx, 0x89, 0x05);
177 raydium_rm67200_write(ctx, 0xb1, 0x05);
178 raydium_rm67200_write(ctx, 0xd7, 0x05);
179 raydium_rm67200_write(ctx, 0x18, 0xaa);
180 raydium_rm67200_write(ctx, 0x14, 0x36);
181 raydium_rm67200_write(ctx, 0x42, 0xaa);
182 raydium_rm67200_write(ctx, 0x3d, 0x36);
183 raydium_rm67200_write(ctx, 0x69, 0xaa);
184 raydium_rm67200_write(ctx, 0x65, 0x36);
185 raydium_rm67200_write(ctx, 0x8f, 0xaa);
186 raydium_rm67200_write(ctx, 0x8b, 0x36);
187 raydium_rm67200_write(ctx, 0xb7, 0xaa);
188 raydium_rm67200_write(ctx, 0xb3, 0x36);
189 raydium_rm67200_write(ctx, 0xdd, 0xaa);
190 raydium_rm67200_write(ctx, 0xd9, 0x36);
191 raydium_rm67200_write(ctx, 0x15, 0x74);
192 raydium_rm67200_write(ctx, 0x3f, 0x74);
193 raydium_rm67200_write(ctx, 0x66, 0x74);
194 raydium_rm67200_write(ctx, 0x8c, 0x74);
195 raydium_rm67200_write(ctx, 0xb4, 0x74);
196 raydium_rm67200_write(ctx, 0xda, 0x74);
197 raydium_rm67200_write(ctx, 0x16, 0x9f);
198 raydium_rm67200_write(ctx, 0x40, 0x9f);
199 raydium_rm67200_write(ctx, 0x67, 0x9f);
200 raydium_rm67200_write(ctx, 0x8d, 0x9f);
201 raydium_rm67200_write(ctx, 0xb5, 0x9f);
202 raydium_rm67200_write(ctx, 0xdb, 0x9f);
203 raydium_rm67200_write(ctx, 0x17, 0xdc);
204 raydium_rm67200_write(ctx, 0x41, 0xdc);
205 raydium_rm67200_write(ctx, 0x68, 0xdc);
206 raydium_rm67200_write(ctx, 0x8e, 0xdc);
207 raydium_rm67200_write(ctx, 0xb6, 0xdc);
208 raydium_rm67200_write(ctx, 0xdc, 0xdc);
209 raydium_rm67200_write(ctx, 0x1d, 0xff);
210 raydium_rm67200_write(ctx, 0x19, 0x03);
211 raydium_rm67200_write(ctx, 0x47, 0xff);
212 raydium_rm67200_write(ctx, 0x43, 0x03);
213 raydium_rm67200_write(ctx, 0x6e, 0xff);
214 raydium_rm67200_write(ctx, 0x6a, 0x03);
215 raydium_rm67200_write(ctx, 0x94, 0xff);
216 raydium_rm67200_write(ctx, 0x90, 0x03);
217 raydium_rm67200_write(ctx, 0xbc, 0xff);
218 raydium_rm67200_write(ctx, 0xb8, 0x03);
219 raydium_rm67200_write(ctx, 0xe2, 0xff);
220 raydium_rm67200_write(ctx, 0xde, 0x03);
221 raydium_rm67200_write(ctx, 0x1a, 0x35);
222 raydium_rm67200_write(ctx, 0x44, 0x35);
223 raydium_rm67200_write(ctx, 0x6b, 0x35);
224 raydium_rm67200_write(ctx, 0x91, 0x35);
225 raydium_rm67200_write(ctx, 0xb9, 0x35);
226 raydium_rm67200_write(ctx, 0xdf, 0x35);
227 raydium_rm67200_write(ctx, 0x1b, 0x45);
228 raydium_rm67200_write(ctx, 0x45, 0x45);
229 raydium_rm67200_write(ctx, 0x6c, 0x45);
230 raydium_rm67200_write(ctx, 0x92, 0x45);
231 raydium_rm67200_write(ctx, 0xba, 0x45);
232 raydium_rm67200_write(ctx, 0xe0, 0x45);
233 raydium_rm67200_write(ctx, 0x1c, 0x55);
234 raydium_rm67200_write(ctx, 0x46, 0x55);
235 raydium_rm67200_write(ctx, 0x6d, 0x55);
236 raydium_rm67200_write(ctx, 0x93, 0x55);
237 raydium_rm67200_write(ctx, 0xbb, 0x55);
238 raydium_rm67200_write(ctx, 0xe1, 0x55);
239 raydium_rm67200_write(ctx, 0x22, 0xff);
240 raydium_rm67200_write(ctx, 0x1e, 0x68);
241 raydium_rm67200_write(ctx, 0x4c, 0xff);
242 raydium_rm67200_write(ctx, 0x48, 0x68);
243 raydium_rm67200_write(ctx, 0x73, 0xff);
244 raydium_rm67200_write(ctx, 0x6f, 0x68);
245 raydium_rm67200_write(ctx, 0x99, 0xff);
246 raydium_rm67200_write(ctx, 0x95, 0x68);
247 raydium_rm67200_write(ctx, 0xc1, 0xff);
248 raydium_rm67200_write(ctx, 0xbd, 0x68);
249 raydium_rm67200_write(ctx, 0xe7, 0xff);
250 raydium_rm67200_write(ctx, 0xe3, 0x68);
251 raydium_rm67200_write(ctx, 0x1f, 0x7e);
252 raydium_rm67200_write(ctx, 0x49, 0x7e);
253 raydium_rm67200_write(ctx, 0x70, 0x7e);
254 raydium_rm67200_write(ctx, 0x96, 0x7e);
255 raydium_rm67200_write(ctx, 0xbe, 0x7e);
256 raydium_rm67200_write(ctx, 0xe4, 0x7e);
257 raydium_rm67200_write(ctx, 0x20, 0x97);
258 raydium_rm67200_write(ctx, 0x4a, 0x97);
259 raydium_rm67200_write(ctx, 0x71, 0x97);
260 raydium_rm67200_write(ctx, 0x97, 0x97);
261 raydium_rm67200_write(ctx, 0xbf, 0x97);
262 raydium_rm67200_write(ctx, 0xe5, 0x97);
263 raydium_rm67200_write(ctx, 0x21, 0xb5);
264 raydium_rm67200_write(ctx, 0x4b, 0xb5);
265 raydium_rm67200_write(ctx, 0x72, 0xb5);
266 raydium_rm67200_write(ctx, 0x98, 0xb5);
267 raydium_rm67200_write(ctx, 0xc0, 0xb5);
268 raydium_rm67200_write(ctx, 0xe6, 0xb5);
269 raydium_rm67200_write(ctx, 0x25, 0xf0);
270 raydium_rm67200_write(ctx, 0x23, 0xe8);
271 raydium_rm67200_write(ctx, 0x4f, 0xf0);
272 raydium_rm67200_write(ctx, 0x4d, 0xe8);
273 raydium_rm67200_write(ctx, 0x76, 0xf0);
274 raydium_rm67200_write(ctx, 0x74, 0xe8);
275 raydium_rm67200_write(ctx, 0x9c, 0xf0);
276 raydium_rm67200_write(ctx, 0x9a, 0xe8);
277 raydium_rm67200_write(ctx, 0xc4, 0xf0);
278 raydium_rm67200_write(ctx, 0xc2, 0xe8);
279 raydium_rm67200_write(ctx, 0xea, 0xf0);
280 raydium_rm67200_write(ctx, 0xe8, 0xe8);
281 raydium_rm67200_write(ctx, 0x24, 0xff);
282 raydium_rm67200_write(ctx, 0x4e, 0xff);
283 raydium_rm67200_write(ctx, 0x75, 0xff);
284 raydium_rm67200_write(ctx, 0x9b, 0xff);
285 raydium_rm67200_write(ctx, 0xc3, 0xff);
286 raydium_rm67200_write(ctx, 0xe9, 0xff);
287 raydium_rm67200_write(ctx, 0xfe, 0x3d);
288 raydium_rm67200_write(ctx, 0x00, 0x04);
289 raydium_rm67200_write(ctx, 0xfe, 0x23);
290 raydium_rm67200_write(ctx, 0x08, 0x82);
291 raydium_rm67200_write(ctx, 0x0a, 0x00);
292 raydium_rm67200_write(ctx, 0x0b, 0x00);
293 raydium_rm67200_write(ctx, 0x0c, 0x01);
294 raydium_rm67200_write(ctx, 0x16, 0x00);
295 raydium_rm67200_write(ctx, 0x18, 0x02);
296 raydium_rm67200_write(ctx, 0x1b, 0x04);
297 raydium_rm67200_write(ctx, 0x19, 0x04);
298 raydium_rm67200_write(ctx, 0x1c, 0x81);
299 raydium_rm67200_write(ctx, 0x1f, 0x00);
300 raydium_rm67200_write(ctx, 0x20, 0x03);
301 raydium_rm67200_write(ctx, 0x23, 0x04);
302 raydium_rm67200_write(ctx, 0x21, 0x01);
303 raydium_rm67200_write(ctx, 0x54, 0x63);
304 raydium_rm67200_write(ctx, 0x55, 0x54);
305 raydium_rm67200_write(ctx, 0x6e, 0x45);
306 raydium_rm67200_write(ctx, 0x6d, 0x36);
307 raydium_rm67200_write(ctx, 0xfe, 0x3d);
308 raydium_rm67200_write(ctx, 0x55, 0x78);
309 raydium_rm67200_write(ctx, 0xfe, 0x20);
310 raydium_rm67200_write(ctx, 0x26, 0x30);
311 raydium_rm67200_write(ctx, 0xfe, 0x3d);
312 raydium_rm67200_write(ctx, 0x20, 0x71);
313 raydium_rm67200_write(ctx, 0x50, 0x8f);
314 raydium_rm67200_write(ctx, 0x51, 0x8f);
315 raydium_rm67200_write(ctx, 0xfe, 0x00);
316 raydium_rm67200_write(ctx, 0x35, 0x00);
317 }
318
raydium_rm67200_prepare(struct drm_panel * panel)319 static int raydium_rm67200_prepare(struct drm_panel *panel)
320 {
321 struct raydium_rm67200 *ctx = to_raydium_rm67200(panel);
322 struct mipi_dsi_multi_context mctx = { .dsi = ctx->dsi };
323 int ret;
324
325 ret = regulator_bulk_enable(ctx->num_supplies, ctx->supplies);
326 if (ret < 0)
327 return ret;
328
329 raydium_rm67200_reset(ctx);
330
331 msleep(60);
332
333 ctx->panel_info->panel_setup(&mctx);
334 mipi_dsi_dcs_exit_sleep_mode_multi(&mctx);
335 mipi_dsi_msleep(&mctx, 120);
336 mipi_dsi_dcs_set_display_on_multi(&mctx);
337 mipi_dsi_msleep(&mctx, 30);
338
339 return 0;
340 }
341
raydium_rm67200_unprepare(struct drm_panel * panel)342 static int raydium_rm67200_unprepare(struct drm_panel *panel)
343 {
344 struct raydium_rm67200 *ctx = to_raydium_rm67200(panel);
345
346 gpiod_set_value_cansleep(ctx->reset_gpio, 1);
347 regulator_bulk_disable(ctx->num_supplies, ctx->supplies);
348
349 msleep(60);
350
351 return 0;
352 }
353
raydium_rm67200_disable(struct drm_panel * panel)354 static int raydium_rm67200_disable(struct drm_panel *panel)
355 {
356 struct raydium_rm67200 *rm67200 = to_raydium_rm67200(panel);
357 struct mipi_dsi_multi_context ctx = { .dsi = rm67200->dsi };
358
359 mipi_dsi_dcs_set_display_off_multi(&ctx);
360 mipi_dsi_dcs_enter_sleep_mode_multi(&ctx);
361 mipi_dsi_msleep(&ctx, 60);
362
363 return ctx.accum_err;
364 }
365
raydium_rm67200_get_modes(struct drm_panel * panel,struct drm_connector * connector)366 static int raydium_rm67200_get_modes(struct drm_panel *panel,
367 struct drm_connector *connector)
368 {
369 struct raydium_rm67200 *ctx = to_raydium_rm67200(panel);
370
371 return drm_connector_helper_get_modes_fixed(connector, &ctx->panel_info->mode);
372 }
373
374 static const struct drm_panel_funcs raydium_rm67200_funcs = {
375 .prepare = raydium_rm67200_prepare,
376 .unprepare = raydium_rm67200_unprepare,
377 .get_modes = raydium_rm67200_get_modes,
378 .disable = raydium_rm67200_disable,
379 };
380
raydium_rm67200_probe(struct mipi_dsi_device * dsi)381 static int raydium_rm67200_probe(struct mipi_dsi_device *dsi)
382 {
383 struct device *dev = &dsi->dev;
384 struct raydium_rm67200 *ctx;
385 int ret = 0;
386
387 ctx = devm_drm_panel_alloc(dev, struct raydium_rm67200, panel,
388 &raydium_rm67200_funcs,
389 DRM_MODE_CONNECTOR_DSI);
390 if (IS_ERR(ctx))
391 return PTR_ERR(ctx);
392
393 ctx->panel_info = device_get_match_data(dev);
394 if (!ctx->panel_info)
395 return -EINVAL;
396
397 ctx->num_supplies = ctx->panel_info->num_regulators;
398 ret = devm_regulator_bulk_get_const(&dsi->dev,
399 ctx->panel_info->num_regulators,
400 ctx->panel_info->regulators,
401 &ctx->supplies);
402 if (ret < 0)
403 return ret;
404
405 ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
406 if (IS_ERR(ctx->reset_gpio))
407 return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
408 "Failed to get reset-gpios\n");
409
410 ctx->dsi = dsi;
411 mipi_dsi_set_drvdata(dsi, ctx);
412
413 dsi->lanes = 4;
414 dsi->format = MIPI_DSI_FMT_RGB888;
415 dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
416 MIPI_DSI_MODE_LPM;
417 ctx->panel.prepare_prev_first = true;
418
419 ret = drm_panel_of_backlight(&ctx->panel);
420 if (ret)
421 return ret;
422
423 drm_panel_add(&ctx->panel);
424
425 ret = mipi_dsi_attach(dsi);
426 if (ret < 0) {
427 dev_err(dev, "Failed to attach to DSI host: %d\n", ret);
428 drm_panel_remove(&ctx->panel);
429 }
430
431 return ret;
432 }
433
raydium_rm67200_remove(struct mipi_dsi_device * dsi)434 static void raydium_rm67200_remove(struct mipi_dsi_device *dsi)
435 {
436 struct raydium_rm67200 *ctx = mipi_dsi_get_drvdata(dsi);
437 int ret;
438
439 ret = mipi_dsi_detach(dsi);
440 if (ret < 0)
441 dev_err(&dsi->dev, "Failed to detach DSI host: %d\n", ret);
442
443 drm_panel_remove(&ctx->panel);
444 }
445
446 static const struct regulator_bulk_data w552793baa_regulators[] = {
447 { .supply = "vdd", }, /* 2.8V */
448 { .supply = "iovcc", }, /* 1.8V */
449 { .supply = "vsp", }, /* +5.5V */
450 { .supply = "vsn", }, /* -5.5V */
451 };
452
453 static const struct raydium_rm67200_panel_info w552793baa_info = {
454 .mode = {
455 .clock = 132000,
456 .hdisplay = 1080,
457 .hsync_start = 1095,
458 .hsync_end = 1125,
459 .htotal = 1129,
460 .vdisplay = 1920,
461 .vsync_start = 1935,
462 .vsync_end = 1950,
463 .vtotal = 1952,
464 .width_mm = 68, /* 68.04mm */
465 .height_mm = 121, /* 120.96mm */
466 .flags = DRM_MODE_FLAG_NVSYNC | DRM_MODE_FLAG_NHSYNC,
467 .type = DRM_MODE_TYPE_DRIVER,
468 },
469 .regulators = w552793baa_regulators,
470 .num_regulators = ARRAY_SIZE(w552793baa_regulators),
471 .panel_setup = w552793baa_setup,
472 };
473
474 static const struct of_device_id raydium_rm67200_of_match[] = {
475 { .compatible = "wanchanglong,w552793baa", .data = &w552793baa_info },
476 { /*sentinel*/ }
477 };
478 MODULE_DEVICE_TABLE(of, raydium_rm67200_of_match);
479
480 static struct mipi_dsi_driver raydium_rm67200_driver = {
481 .probe = raydium_rm67200_probe,
482 .remove = raydium_rm67200_remove,
483 .driver = {
484 .name = "panel-raydium-rm67200",
485 .of_match_table = raydium_rm67200_of_match,
486 },
487 };
488 module_mipi_dsi_driver(raydium_rm67200_driver);
489
490 MODULE_AUTHOR("Sebastian Reichel <sebastian.reichel@collabora.com>");
491 MODULE_DESCRIPTION("DRM driver for RM67200-equipped DSI panels");
492 MODULE_LICENSE("GPL");
493