1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd |
4 | */ |
5 | |
6 | #include <linux/delay.h> |
7 | #include <linux/gpio/consumer.h> |
8 | #include <linux/module.h> |
9 | #include <linux/of.h> |
10 | #include <linux/regulator/consumer.h> |
11 | |
12 | #include <video/mipi_display.h> |
13 | |
14 | #include <drm/drm_crtc.h> |
15 | #include <drm/drm_device.h> |
16 | #include <drm/drm_mipi_dsi.h> |
17 | #include <drm/drm_modes.h> |
18 | #include <drm/drm_panel.h> |
19 | |
20 | struct panel_init_cmd { |
21 | size_t len; |
22 | const char *data; |
23 | }; |
24 | |
25 | #define _INIT_CMD(...) { \ |
26 | .len = sizeof((char[]){__VA_ARGS__}), \ |
27 | .data = (char[]){__VA_ARGS__} } |
28 | |
29 | struct panel_desc { |
30 | const struct drm_display_mode *mode; |
31 | unsigned int bpc; |
32 | struct { |
33 | unsigned int width; |
34 | unsigned int height; |
35 | } size; |
36 | |
37 | unsigned long flags; |
38 | enum mipi_dsi_pixel_format format; |
39 | const struct panel_init_cmd *init_cmds; |
40 | unsigned int lanes; |
41 | const char * const *supply_names; |
42 | unsigned int num_supplies; |
43 | unsigned int sleep_mode_delay; |
44 | unsigned int power_down_delay; |
45 | }; |
46 | |
47 | struct innolux_panel { |
48 | struct drm_panel base; |
49 | struct mipi_dsi_device *link; |
50 | const struct panel_desc *desc; |
51 | |
52 | struct regulator_bulk_data *supplies; |
53 | struct gpio_desc *enable_gpio; |
54 | |
55 | bool prepared; |
56 | bool enabled; |
57 | }; |
58 | |
59 | static inline struct innolux_panel *to_innolux_panel(struct drm_panel *panel) |
60 | { |
61 | return container_of(panel, struct innolux_panel, base); |
62 | } |
63 | |
64 | static int innolux_panel_disable(struct drm_panel *panel) |
65 | { |
66 | struct innolux_panel *innolux = to_innolux_panel(panel); |
67 | |
68 | if (!innolux->enabled) |
69 | return 0; |
70 | |
71 | innolux->enabled = false; |
72 | |
73 | return 0; |
74 | } |
75 | |
76 | static int innolux_panel_unprepare(struct drm_panel *panel) |
77 | { |
78 | struct innolux_panel *innolux = to_innolux_panel(panel); |
79 | int err; |
80 | |
81 | if (!innolux->prepared) |
82 | return 0; |
83 | |
84 | err = mipi_dsi_dcs_set_display_off(dsi: innolux->link); |
85 | if (err < 0) |
86 | dev_err(panel->dev, "failed to set display off: %d\n" , err); |
87 | |
88 | err = mipi_dsi_dcs_enter_sleep_mode(dsi: innolux->link); |
89 | if (err < 0) { |
90 | dev_err(panel->dev, "failed to enter sleep mode: %d\n" , err); |
91 | return err; |
92 | } |
93 | |
94 | if (innolux->desc->sleep_mode_delay) |
95 | msleep(msecs: innolux->desc->sleep_mode_delay); |
96 | |
97 | gpiod_set_value_cansleep(desc: innolux->enable_gpio, value: 0); |
98 | |
99 | if (innolux->desc->power_down_delay) |
100 | msleep(msecs: innolux->desc->power_down_delay); |
101 | |
102 | err = regulator_bulk_disable(num_consumers: innolux->desc->num_supplies, |
103 | consumers: innolux->supplies); |
104 | if (err < 0) |
105 | return err; |
106 | |
107 | innolux->prepared = false; |
108 | |
109 | return 0; |
110 | } |
111 | |
112 | static int innolux_panel_prepare(struct drm_panel *panel) |
113 | { |
114 | struct innolux_panel *innolux = to_innolux_panel(panel); |
115 | int err; |
116 | |
117 | if (innolux->prepared) |
118 | return 0; |
119 | |
120 | gpiod_set_value_cansleep(desc: innolux->enable_gpio, value: 0); |
121 | |
122 | err = regulator_bulk_enable(num_consumers: innolux->desc->num_supplies, |
123 | consumers: innolux->supplies); |
124 | if (err < 0) |
125 | return err; |
126 | |
127 | /* p079zca: t2 (20ms), p097pfg: t4 (15ms) */ |
128 | usleep_range(min: 20000, max: 21000); |
129 | |
130 | gpiod_set_value_cansleep(desc: innolux->enable_gpio, value: 1); |
131 | |
132 | /* p079zca: t4, p097pfg: t5 */ |
133 | usleep_range(min: 20000, max: 21000); |
134 | |
135 | if (innolux->desc->init_cmds) { |
136 | const struct panel_init_cmd *cmds = |
137 | innolux->desc->init_cmds; |
138 | unsigned int i; |
139 | |
140 | for (i = 0; cmds[i].len != 0; i++) { |
141 | const struct panel_init_cmd *cmd = &cmds[i]; |
142 | |
143 | err = mipi_dsi_generic_write(dsi: innolux->link, payload: cmd->data, |
144 | size: cmd->len); |
145 | if (err < 0) { |
146 | dev_err(panel->dev, "failed to write command %u\n" , i); |
147 | goto poweroff; |
148 | } |
149 | |
150 | /* |
151 | * Included by random guessing, because without this |
152 | * (or at least, some delay), the panel sometimes |
153 | * didn't appear to pick up the command sequence. |
154 | */ |
155 | err = mipi_dsi_dcs_nop(dsi: innolux->link); |
156 | if (err < 0) { |
157 | dev_err(panel->dev, "failed to send DCS nop: %d\n" , err); |
158 | goto poweroff; |
159 | } |
160 | } |
161 | } |
162 | |
163 | err = mipi_dsi_dcs_exit_sleep_mode(dsi: innolux->link); |
164 | if (err < 0) { |
165 | dev_err(panel->dev, "failed to exit sleep mode: %d\n" , err); |
166 | goto poweroff; |
167 | } |
168 | |
169 | /* T6: 120ms - 1000ms*/ |
170 | msleep(msecs: 120); |
171 | |
172 | err = mipi_dsi_dcs_set_display_on(dsi: innolux->link); |
173 | if (err < 0) { |
174 | dev_err(panel->dev, "failed to set display on: %d\n" , err); |
175 | goto poweroff; |
176 | } |
177 | |
178 | /* T7: 5ms */ |
179 | usleep_range(min: 5000, max: 6000); |
180 | |
181 | innolux->prepared = true; |
182 | |
183 | return 0; |
184 | |
185 | poweroff: |
186 | gpiod_set_value_cansleep(desc: innolux->enable_gpio, value: 0); |
187 | regulator_bulk_disable(num_consumers: innolux->desc->num_supplies, consumers: innolux->supplies); |
188 | |
189 | return err; |
190 | } |
191 | |
192 | static int innolux_panel_enable(struct drm_panel *panel) |
193 | { |
194 | struct innolux_panel *innolux = to_innolux_panel(panel); |
195 | |
196 | if (innolux->enabled) |
197 | return 0; |
198 | |
199 | innolux->enabled = true; |
200 | |
201 | return 0; |
202 | } |
203 | |
204 | static const char * const innolux_p079zca_supply_names[] = { |
205 | "power" , |
206 | }; |
207 | |
208 | static const struct drm_display_mode innolux_p079zca_mode = { |
209 | .clock = 56900, |
210 | .hdisplay = 768, |
211 | .hsync_start = 768 + 40, |
212 | .hsync_end = 768 + 40 + 40, |
213 | .htotal = 768 + 40 + 40 + 40, |
214 | .vdisplay = 1024, |
215 | .vsync_start = 1024 + 20, |
216 | .vsync_end = 1024 + 20 + 4, |
217 | .vtotal = 1024 + 20 + 4 + 20, |
218 | }; |
219 | |
220 | static const struct panel_desc innolux_p079zca_panel_desc = { |
221 | .mode = &innolux_p079zca_mode, |
222 | .bpc = 8, |
223 | .size = { |
224 | .width = 120, |
225 | .height = 160, |
226 | }, |
227 | .flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE | |
228 | MIPI_DSI_MODE_LPM, |
229 | .format = MIPI_DSI_FMT_RGB888, |
230 | .lanes = 4, |
231 | .supply_names = innolux_p079zca_supply_names, |
232 | .num_supplies = ARRAY_SIZE(innolux_p079zca_supply_names), |
233 | .power_down_delay = 80, /* T8: 80ms - 1000ms */ |
234 | }; |
235 | |
236 | static const char * const innolux_p097pfg_supply_names[] = { |
237 | "avdd" , |
238 | "avee" , |
239 | }; |
240 | |
241 | static const struct drm_display_mode innolux_p097pfg_mode = { |
242 | .clock = 229000, |
243 | .hdisplay = 1536, |
244 | .hsync_start = 1536 + 100, |
245 | .hsync_end = 1536 + 100 + 24, |
246 | .htotal = 1536 + 100 + 24 + 100, |
247 | .vdisplay = 2048, |
248 | .vsync_start = 2048 + 100, |
249 | .vsync_end = 2048 + 100 + 2, |
250 | .vtotal = 2048 + 100 + 2 + 18, |
251 | }; |
252 | |
253 | /* |
254 | * Display manufacturer failed to provide init sequencing according to |
255 | * https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/892065/ |
256 | * so the init sequence stems from a register dump of a working panel. |
257 | */ |
258 | static const struct panel_init_cmd innolux_p097pfg_init_cmds[] = { |
259 | /* page 0 */ |
260 | _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x00), |
261 | _INIT_CMD(0xB1, 0xE8, 0x11), |
262 | _INIT_CMD(0xB2, 0x25, 0x02), |
263 | _INIT_CMD(0xB5, 0x08, 0x00), |
264 | _INIT_CMD(0xBC, 0x0F, 0x00), |
265 | _INIT_CMD(0xB8, 0x03, 0x06, 0x00, 0x00), |
266 | _INIT_CMD(0xBD, 0x01, 0x90, 0x14, 0x14), |
267 | _INIT_CMD(0x6F, 0x01), |
268 | _INIT_CMD(0xC0, 0x03), |
269 | _INIT_CMD(0x6F, 0x02), |
270 | _INIT_CMD(0xC1, 0x0D), |
271 | _INIT_CMD(0xD9, 0x01, 0x09, 0x70), |
272 | _INIT_CMD(0xC5, 0x12, 0x21, 0x00), |
273 | _INIT_CMD(0xBB, 0x93, 0x93), |
274 | |
275 | /* page 1 */ |
276 | _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x01), |
277 | _INIT_CMD(0xB3, 0x3C, 0x3C), |
278 | _INIT_CMD(0xB4, 0x0F, 0x0F), |
279 | _INIT_CMD(0xB9, 0x45, 0x45), |
280 | _INIT_CMD(0xBA, 0x14, 0x14), |
281 | _INIT_CMD(0xCA, 0x02), |
282 | _INIT_CMD(0xCE, 0x04), |
283 | _INIT_CMD(0xC3, 0x9B, 0x9B), |
284 | _INIT_CMD(0xD8, 0xC0, 0x03), |
285 | _INIT_CMD(0xBC, 0x82, 0x01), |
286 | _INIT_CMD(0xBD, 0x9E, 0x01), |
287 | |
288 | /* page 2 */ |
289 | _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x02), |
290 | _INIT_CMD(0xB0, 0x82), |
291 | _INIT_CMD(0xD1, 0x00, 0x00, 0x00, 0x3E, 0x00, 0x82, 0x00, 0xA5, |
292 | 0x00, 0xC1, 0x00, 0xEA, 0x01, 0x0D, 0x01, 0x40), |
293 | _INIT_CMD(0xD2, 0x01, 0x6A, 0x01, 0xA8, 0x01, 0xDC, 0x02, 0x29, |
294 | 0x02, 0x67, 0x02, 0x68, 0x02, 0xA8, 0x02, 0xF0), |
295 | _INIT_CMD(0xD3, 0x03, 0x19, 0x03, 0x49, 0x03, 0x67, 0x03, 0x8C, |
296 | 0x03, 0xA6, 0x03, 0xC7, 0x03, 0xDE, 0x03, 0xEC), |
297 | _INIT_CMD(0xD4, 0x03, 0xFF, 0x03, 0xFF), |
298 | _INIT_CMD(0xE0, 0x00, 0x00, 0x00, 0x86, 0x00, 0xC5, 0x00, 0xE5, |
299 | 0x00, 0xFF, 0x01, 0x26, 0x01, 0x45, 0x01, 0x75), |
300 | _INIT_CMD(0xE1, 0x01, 0x9C, 0x01, 0xD5, 0x02, 0x05, 0x02, 0x4D, |
301 | 0x02, 0x86, 0x02, 0x87, 0x02, 0xC3, 0x03, 0x03), |
302 | _INIT_CMD(0xE2, 0x03, 0x2A, 0x03, 0x56, 0x03, 0x72, 0x03, 0x94, |
303 | 0x03, 0xAC, 0x03, 0xCB, 0x03, 0xE0, 0x03, 0xED), |
304 | _INIT_CMD(0xE3, 0x03, 0xFF, 0x03, 0xFF), |
305 | |
306 | /* page 3 */ |
307 | _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x03), |
308 | _INIT_CMD(0xB0, 0x00, 0x00, 0x00, 0x00), |
309 | _INIT_CMD(0xB1, 0x00, 0x00, 0x00, 0x00), |
310 | _INIT_CMD(0xB2, 0x00, 0x00, 0x06, 0x04, 0x01, 0x40, 0x85), |
311 | _INIT_CMD(0xB3, 0x10, 0x07, 0xFC, 0x04, 0x01, 0x40, 0x80), |
312 | _INIT_CMD(0xB6, 0xF0, 0x08, 0x00, 0x04, 0x00, 0x00, 0x00, 0x01, |
313 | 0x40, 0x80), |
314 | _INIT_CMD(0xBA, 0xC5, 0x07, 0x00, 0x04, 0x11, 0x25, 0x8C), |
315 | _INIT_CMD(0xBB, 0xC5, 0x07, 0x00, 0x03, 0x11, 0x25, 0x8C), |
316 | _INIT_CMD(0xC0, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x80, 0x80), |
317 | _INIT_CMD(0xC1, 0x00, 0x3C, 0x00, 0x00, 0x00, 0x80, 0x80), |
318 | _INIT_CMD(0xC4, 0x00, 0x00), |
319 | _INIT_CMD(0xEF, 0x41), |
320 | |
321 | /* page 4 */ |
322 | _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x04), |
323 | _INIT_CMD(0xEC, 0x4C), |
324 | |
325 | /* page 5 */ |
326 | _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x05), |
327 | _INIT_CMD(0xB0, 0x13, 0x03, 0x03, 0x01), |
328 | _INIT_CMD(0xB1, 0x30, 0x00), |
329 | _INIT_CMD(0xB2, 0x02, 0x02, 0x00), |
330 | _INIT_CMD(0xB3, 0x82, 0x23, 0x82, 0x9D), |
331 | _INIT_CMD(0xB4, 0xC5, 0x75, 0x24, 0x57), |
332 | _INIT_CMD(0xB5, 0x00, 0xD4, 0x72, 0x11, 0x11, 0xAB, 0x0A), |
333 | _INIT_CMD(0xB6, 0x00, 0x00, 0xD5, 0x72, 0x24, 0x56), |
334 | _INIT_CMD(0xB7, 0x5C, 0xDC, 0x5C, 0x5C), |
335 | _INIT_CMD(0xB9, 0x0C, 0x00, 0x00, 0x01, 0x00), |
336 | _INIT_CMD(0xC0, 0x75, 0x11, 0x11, 0x54, 0x05), |
337 | _INIT_CMD(0xC6, 0x00, 0x00, 0x00, 0x00), |
338 | _INIT_CMD(0xD0, 0x00, 0x48, 0x08, 0x00, 0x00), |
339 | _INIT_CMD(0xD1, 0x00, 0x48, 0x09, 0x00, 0x00), |
340 | |
341 | /* page 6 */ |
342 | _INIT_CMD(0xF0, 0x55, 0xAA, 0x52, 0x08, 0x06), |
343 | _INIT_CMD(0xB0, 0x02, 0x32, 0x32, 0x08, 0x2F), |
344 | _INIT_CMD(0xB1, 0x2E, 0x15, 0x14, 0x13, 0x12), |
345 | _INIT_CMD(0xB2, 0x11, 0x10, 0x00, 0x3D, 0x3D), |
346 | _INIT_CMD(0xB3, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D), |
347 | _INIT_CMD(0xB4, 0x3D, 0x32), |
348 | _INIT_CMD(0xB5, 0x03, 0x32, 0x32, 0x09, 0x2F), |
349 | _INIT_CMD(0xB6, 0x2E, 0x1B, 0x1A, 0x19, 0x18), |
350 | _INIT_CMD(0xB7, 0x17, 0x16, 0x01, 0x3D, 0x3D), |
351 | _INIT_CMD(0xB8, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D), |
352 | _INIT_CMD(0xB9, 0x3D, 0x32), |
353 | _INIT_CMD(0xC0, 0x01, 0x32, 0x32, 0x09, 0x2F), |
354 | _INIT_CMD(0xC1, 0x2E, 0x1A, 0x1B, 0x16, 0x17), |
355 | _INIT_CMD(0xC2, 0x18, 0x19, 0x03, 0x3D, 0x3D), |
356 | _INIT_CMD(0xC3, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D), |
357 | _INIT_CMD(0xC4, 0x3D, 0x32), |
358 | _INIT_CMD(0xC5, 0x00, 0x32, 0x32, 0x08, 0x2F), |
359 | _INIT_CMD(0xC6, 0x2E, 0x14, 0x15, 0x10, 0x11), |
360 | _INIT_CMD(0xC7, 0x12, 0x13, 0x02, 0x3D, 0x3D), |
361 | _INIT_CMD(0xC8, 0x3D, 0x3D, 0x3D, 0x3D, 0x3D), |
362 | _INIT_CMD(0xC9, 0x3D, 0x32), |
363 | |
364 | {}, |
365 | }; |
366 | |
367 | static const struct panel_desc innolux_p097pfg_panel_desc = { |
368 | .mode = &innolux_p097pfg_mode, |
369 | .bpc = 8, |
370 | .size = { |
371 | .width = 147, |
372 | .height = 196, |
373 | }, |
374 | .flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE | |
375 | MIPI_DSI_MODE_LPM, |
376 | .format = MIPI_DSI_FMT_RGB888, |
377 | .init_cmds = innolux_p097pfg_init_cmds, |
378 | .lanes = 4, |
379 | .supply_names = innolux_p097pfg_supply_names, |
380 | .num_supplies = ARRAY_SIZE(innolux_p097pfg_supply_names), |
381 | .sleep_mode_delay = 100, /* T15 */ |
382 | }; |
383 | |
384 | static int innolux_panel_get_modes(struct drm_panel *panel, |
385 | struct drm_connector *connector) |
386 | { |
387 | struct innolux_panel *innolux = to_innolux_panel(panel); |
388 | const struct drm_display_mode *m = innolux->desc->mode; |
389 | struct drm_display_mode *mode; |
390 | |
391 | mode = drm_mode_duplicate(dev: connector->dev, mode: m); |
392 | if (!mode) { |
393 | dev_err(panel->dev, "failed to add mode %ux%u@%u\n" , |
394 | m->hdisplay, m->vdisplay, drm_mode_vrefresh(m)); |
395 | return -ENOMEM; |
396 | } |
397 | |
398 | drm_mode_set_name(mode); |
399 | |
400 | drm_mode_probed_add(connector, mode); |
401 | |
402 | connector->display_info.width_mm = innolux->desc->size.width; |
403 | connector->display_info.height_mm = innolux->desc->size.height; |
404 | connector->display_info.bpc = innolux->desc->bpc; |
405 | |
406 | return 1; |
407 | } |
408 | |
409 | static const struct drm_panel_funcs innolux_panel_funcs = { |
410 | .disable = innolux_panel_disable, |
411 | .unprepare = innolux_panel_unprepare, |
412 | .prepare = innolux_panel_prepare, |
413 | .enable = innolux_panel_enable, |
414 | .get_modes = innolux_panel_get_modes, |
415 | }; |
416 | |
417 | static const struct of_device_id innolux_of_match[] = { |
418 | { .compatible = "innolux,p079zca" , |
419 | .data = &innolux_p079zca_panel_desc |
420 | }, |
421 | { .compatible = "innolux,p097pfg" , |
422 | .data = &innolux_p097pfg_panel_desc |
423 | }, |
424 | { } |
425 | }; |
426 | MODULE_DEVICE_TABLE(of, innolux_of_match); |
427 | |
428 | static int innolux_panel_add(struct mipi_dsi_device *dsi, |
429 | const struct panel_desc *desc) |
430 | { |
431 | struct innolux_panel *innolux; |
432 | struct device *dev = &dsi->dev; |
433 | int err, i; |
434 | |
435 | innolux = devm_kzalloc(dev, size: sizeof(*innolux), GFP_KERNEL); |
436 | if (!innolux) |
437 | return -ENOMEM; |
438 | |
439 | innolux->desc = desc; |
440 | |
441 | innolux->supplies = devm_kcalloc(dev, n: desc->num_supplies, |
442 | size: sizeof(*innolux->supplies), |
443 | GFP_KERNEL); |
444 | if (!innolux->supplies) |
445 | return -ENOMEM; |
446 | |
447 | for (i = 0; i < desc->num_supplies; i++) |
448 | innolux->supplies[i].supply = desc->supply_names[i]; |
449 | |
450 | err = devm_regulator_bulk_get(dev, num_consumers: desc->num_supplies, |
451 | consumers: innolux->supplies); |
452 | if (err < 0) |
453 | return err; |
454 | |
455 | innolux->enable_gpio = devm_gpiod_get_optional(dev, con_id: "enable" , |
456 | flags: GPIOD_OUT_HIGH); |
457 | if (IS_ERR(ptr: innolux->enable_gpio)) { |
458 | err = PTR_ERR(ptr: innolux->enable_gpio); |
459 | dev_dbg(dev, "failed to get enable gpio: %d\n" , err); |
460 | innolux->enable_gpio = NULL; |
461 | } |
462 | |
463 | drm_panel_init(panel: &innolux->base, dev, funcs: &innolux_panel_funcs, |
464 | DRM_MODE_CONNECTOR_DSI); |
465 | |
466 | err = drm_panel_of_backlight(panel: &innolux->base); |
467 | if (err) |
468 | return err; |
469 | |
470 | drm_panel_add(panel: &innolux->base); |
471 | |
472 | mipi_dsi_set_drvdata(dsi, data: innolux); |
473 | innolux->link = dsi; |
474 | |
475 | return 0; |
476 | } |
477 | |
478 | static void innolux_panel_del(struct innolux_panel *innolux) |
479 | { |
480 | drm_panel_remove(panel: &innolux->base); |
481 | } |
482 | |
483 | static int innolux_panel_probe(struct mipi_dsi_device *dsi) |
484 | { |
485 | const struct panel_desc *desc; |
486 | struct innolux_panel *innolux; |
487 | int err; |
488 | |
489 | desc = of_device_get_match_data(dev: &dsi->dev); |
490 | dsi->mode_flags = desc->flags; |
491 | dsi->format = desc->format; |
492 | dsi->lanes = desc->lanes; |
493 | |
494 | err = innolux_panel_add(dsi, desc); |
495 | if (err < 0) |
496 | return err; |
497 | |
498 | err = mipi_dsi_attach(dsi); |
499 | if (err < 0) { |
500 | innolux = mipi_dsi_get_drvdata(dsi); |
501 | innolux_panel_del(innolux); |
502 | return err; |
503 | } |
504 | |
505 | return 0; |
506 | } |
507 | |
508 | static void innolux_panel_remove(struct mipi_dsi_device *dsi) |
509 | { |
510 | struct innolux_panel *innolux = mipi_dsi_get_drvdata(dsi); |
511 | int err; |
512 | |
513 | err = drm_panel_unprepare(panel: &innolux->base); |
514 | if (err < 0) |
515 | dev_err(&dsi->dev, "failed to unprepare panel: %d\n" , err); |
516 | |
517 | err = drm_panel_disable(panel: &innolux->base); |
518 | if (err < 0) |
519 | dev_err(&dsi->dev, "failed to disable panel: %d\n" , err); |
520 | |
521 | err = mipi_dsi_detach(dsi); |
522 | if (err < 0) |
523 | dev_err(&dsi->dev, "failed to detach from DSI host: %d\n" , err); |
524 | |
525 | innolux_panel_del(innolux); |
526 | } |
527 | |
528 | static void innolux_panel_shutdown(struct mipi_dsi_device *dsi) |
529 | { |
530 | struct innolux_panel *innolux = mipi_dsi_get_drvdata(dsi); |
531 | |
532 | drm_panel_unprepare(panel: &innolux->base); |
533 | drm_panel_disable(panel: &innolux->base); |
534 | } |
535 | |
536 | static struct mipi_dsi_driver innolux_panel_driver = { |
537 | .driver = { |
538 | .name = "panel-innolux-p079zca" , |
539 | .of_match_table = innolux_of_match, |
540 | }, |
541 | .probe = innolux_panel_probe, |
542 | .remove = innolux_panel_remove, |
543 | .shutdown = innolux_panel_shutdown, |
544 | }; |
545 | module_mipi_dsi_driver(innolux_panel_driver); |
546 | |
547 | MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>" ); |
548 | MODULE_AUTHOR("Lin Huang <hl@rock-chips.com>" ); |
549 | MODULE_DESCRIPTION("Innolux P079ZCA panel driver" ); |
550 | MODULE_LICENSE("GPL v2" ); |
551 | |