Commit | Line | Data |
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559d6701 TV |
1 | /* |
2 | * linux/drivers/video/omap2/dss/core.c | |
3 | * | |
4 | * Copyright (C) 2009 Nokia Corporation | |
5 | * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> | |
6 | * | |
7 | * Some code and ideas taken from drivers/video/omap/ driver | |
8 | * by Imre Deak. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License version 2 as published by | |
12 | * the Free Software Foundation. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
15 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
17 | * more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License along with | |
20 | * this program. If not, see <http://www.gnu.org/licenses/>. | |
21 | */ | |
22 | ||
23 | #define DSS_SUBSYS_NAME "CORE" | |
24 | ||
25 | #include <linux/kernel.h> | |
26 | #include <linux/module.h> | |
27 | #include <linux/clk.h> | |
28 | #include <linux/err.h> | |
29 | #include <linux/platform_device.h> | |
30 | #include <linux/seq_file.h> | |
31 | #include <linux/debugfs.h> | |
32 | #include <linux/io.h> | |
33 | #include <linux/device.h> | |
8a2cfea8 | 34 | #include <linux/regulator/consumer.h> |
736f29cd | 35 | #include <linux/suspend.h> |
5274484b | 36 | #include <linux/slab.h> |
559d6701 | 37 | |
a0b38cc4 | 38 | #include <video/omapdss.h> |
559d6701 TV |
39 | |
40 | #include "dss.h" | |
a0acb557 | 41 | #include "dss_features.h" |
559d6701 TV |
42 | |
43 | static struct { | |
44 | struct platform_device *pdev; | |
8a2cfea8 TV |
45 | |
46 | struct regulator *vdds_dsi_reg; | |
47 | struct regulator *vdds_sdi_reg; | |
c018c673 TV |
48 | |
49 | const char *default_display_name; | |
559d6701 TV |
50 | } core; |
51 | ||
559d6701 TV |
52 | static char *def_disp_name; |
53 | module_param_named(def_disp, def_disp_name, charp, 0); | |
ac425ed5 | 54 | MODULE_PARM_DESC(def_disp, "default display name"); |
559d6701 | 55 | |
591a0ac7 TV |
56 | static bool dss_initialized; |
57 | ||
2bbcce5e | 58 | const char *omapdss_get_default_display_name(void) |
6a03fca9 TV |
59 | { |
60 | return core.default_display_name; | |
61 | } | |
2bbcce5e | 62 | EXPORT_SYMBOL(omapdss_get_default_display_name); |
6a03fca9 | 63 | |
b2c7d54f TV |
64 | enum omapdss_version omapdss_get_version(void) |
65 | { | |
66 | struct omap_dss_board_info *pdata = core.pdev->dev.platform_data; | |
67 | return pdata->version; | |
68 | } | |
69 | EXPORT_SYMBOL(omapdss_get_version); | |
70 | ||
591a0ac7 TV |
71 | bool omapdss_is_initialized(void) |
72 | { | |
73 | return dss_initialized; | |
74 | } | |
75 | EXPORT_SYMBOL(omapdss_is_initialized); | |
76 | ||
8f46efad TV |
77 | struct platform_device *dss_get_core_pdev(void) |
78 | { | |
79 | return core.pdev; | |
80 | } | |
81 | ||
8a2cfea8 TV |
82 | /* REGULATORS */ |
83 | ||
84 | struct regulator *dss_get_vdds_dsi(void) | |
85 | { | |
86 | struct regulator *reg; | |
87 | ||
88 | if (core.vdds_dsi_reg != NULL) | |
89 | return core.vdds_dsi_reg; | |
90 | ||
91 | reg = regulator_get(&core.pdev->dev, "vdds_dsi"); | |
92 | if (!IS_ERR(reg)) | |
93 | core.vdds_dsi_reg = reg; | |
94 | ||
95 | return reg; | |
96 | } | |
97 | ||
98 | struct regulator *dss_get_vdds_sdi(void) | |
99 | { | |
100 | struct regulator *reg; | |
101 | ||
102 | if (core.vdds_sdi_reg != NULL) | |
103 | return core.vdds_sdi_reg; | |
104 | ||
105 | reg = regulator_get(&core.pdev->dev, "vdds_sdi"); | |
106 | if (!IS_ERR(reg)) | |
107 | core.vdds_sdi_reg = reg; | |
108 | ||
109 | return reg; | |
110 | } | |
111 | ||
00928eaf TV |
112 | int dss_dsi_enable_pads(int dsi_id, unsigned lane_mask) |
113 | { | |
114 | struct omap_dss_board_info *board_data = core.pdev->dev.platform_data; | |
115 | ||
116 | if (!board_data->dsi_enable_pads) | |
117 | return -ENOENT; | |
118 | ||
119 | return board_data->dsi_enable_pads(dsi_id, lane_mask); | |
120 | } | |
121 | ||
122 | void dss_dsi_disable_pads(int dsi_id, unsigned lane_mask) | |
123 | { | |
124 | struct omap_dss_board_info *board_data = core.pdev->dev.platform_data; | |
125 | ||
da6c5687 | 126 | if (!board_data->dsi_disable_pads) |
00928eaf TV |
127 | return; |
128 | ||
129 | return board_data->dsi_disable_pads(dsi_id, lane_mask); | |
130 | } | |
131 | ||
a8081d31 TV |
132 | int dss_set_min_bus_tput(struct device *dev, unsigned long tput) |
133 | { | |
134 | struct omap_dss_board_info *pdata = core.pdev->dev.platform_data; | |
135 | ||
136 | if (pdata->set_min_bus_tput) | |
137 | return pdata->set_min_bus_tput(dev, tput); | |
138 | else | |
139 | return 0; | |
140 | } | |
141 | ||
1b3bcb33 | 142 | #if defined(CONFIG_OMAP2_DSS_DEBUGFS) |
559d6701 TV |
143 | static int dss_debug_show(struct seq_file *s, void *unused) |
144 | { | |
145 | void (*func)(struct seq_file *) = s->private; | |
146 | func(s); | |
147 | return 0; | |
148 | } | |
149 | ||
150 | static int dss_debug_open(struct inode *inode, struct file *file) | |
151 | { | |
152 | return single_open(file, dss_debug_show, inode->i_private); | |
153 | } | |
154 | ||
155 | static const struct file_operations dss_debug_fops = { | |
156 | .open = dss_debug_open, | |
157 | .read = seq_read, | |
158 | .llseek = seq_lseek, | |
159 | .release = single_release, | |
160 | }; | |
161 | ||
162 | static struct dentry *dss_debugfs_dir; | |
163 | ||
164 | static int dss_initialize_debugfs(void) | |
165 | { | |
166 | dss_debugfs_dir = debugfs_create_dir("omapdss", NULL); | |
167 | if (IS_ERR(dss_debugfs_dir)) { | |
168 | int err = PTR_ERR(dss_debugfs_dir); | |
169 | dss_debugfs_dir = NULL; | |
170 | return err; | |
171 | } | |
172 | ||
173 | debugfs_create_file("clk", S_IRUGO, dss_debugfs_dir, | |
174 | &dss_debug_dump_clocks, &dss_debug_fops); | |
175 | ||
559d6701 TV |
176 | return 0; |
177 | } | |
178 | ||
179 | static void dss_uninitialize_debugfs(void) | |
180 | { | |
181 | if (dss_debugfs_dir) | |
182 | debugfs_remove_recursive(dss_debugfs_dir); | |
183 | } | |
e40402cf TV |
184 | |
185 | int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *)) | |
186 | { | |
187 | struct dentry *d; | |
188 | ||
189 | d = debugfs_create_file(name, S_IRUGO, dss_debugfs_dir, | |
190 | write, &dss_debug_fops); | |
191 | ||
48c2169f | 192 | return PTR_RET(d); |
e40402cf | 193 | } |
1b3bcb33 | 194 | #else /* CONFIG_OMAP2_DSS_DEBUGFS */ |
368a148e JN |
195 | static inline int dss_initialize_debugfs(void) |
196 | { | |
197 | return 0; | |
198 | } | |
199 | static inline void dss_uninitialize_debugfs(void) | |
200 | { | |
201 | } | |
0e9a126e | 202 | int dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *)) |
e40402cf TV |
203 | { |
204 | return 0; | |
205 | } | |
1b3bcb33 | 206 | #endif /* CONFIG_OMAP2_DSS_DEBUGFS */ |
559d6701 TV |
207 | |
208 | /* PLATFORM DEVICE */ | |
736f29cd TV |
209 | static int omap_dss_pm_notif(struct notifier_block *b, unsigned long v, void *d) |
210 | { | |
211 | DSSDBG("pm notif %lu\n", v); | |
212 | ||
213 | switch (v) { | |
214 | case PM_SUSPEND_PREPARE: | |
215 | DSSDBG("suspending displays\n"); | |
216 | return dss_suspend_all_devices(); | |
217 | ||
218 | case PM_POST_SUSPEND: | |
219 | DSSDBG("resuming displays\n"); | |
220 | return dss_resume_all_devices(); | |
221 | ||
222 | default: | |
223 | return 0; | |
224 | } | |
225 | } | |
226 | ||
227 | static struct notifier_block omap_dss_pm_notif_block = { | |
228 | .notifier_call = omap_dss_pm_notif, | |
229 | }; | |
230 | ||
6e7e8f06 | 231 | static int __init omap_dss_probe(struct platform_device *pdev) |
559d6701 TV |
232 | { |
233 | struct omap_dss_board_info *pdata = pdev->dev.platform_data; | |
559d6701 | 234 | int r; |
559d6701 TV |
235 | |
236 | core.pdev = pdev; | |
237 | ||
b2c7d54f | 238 | dss_features_init(omapdss_get_version()); |
a0acb557 | 239 | |
559d6701 TV |
240 | r = dss_initialize_debugfs(); |
241 | if (r) | |
fce064cb | 242 | goto err_debugfs; |
559d6701 | 243 | |
c018c673 TV |
244 | if (def_disp_name) |
245 | core.default_display_name = def_disp_name; | |
246 | else if (pdata->default_device) | |
247 | core.default_display_name = pdata->default_device->name; | |
248 | ||
736f29cd TV |
249 | register_pm_notifier(&omap_dss_pm_notif_block); |
250 | ||
559d6701 TV |
251 | return 0; |
252 | ||
fce064cb | 253 | err_debugfs: |
fce064cb | 254 | |
559d6701 TV |
255 | return r; |
256 | } | |
257 | ||
258 | static int omap_dss_remove(struct platform_device *pdev) | |
259 | { | |
736f29cd TV |
260 | unregister_pm_notifier(&omap_dss_pm_notif_block); |
261 | ||
559d6701 | 262 | dss_uninitialize_debugfs(); |
559d6701 | 263 | |
559d6701 TV |
264 | return 0; |
265 | } | |
266 | ||
267 | static void omap_dss_shutdown(struct platform_device *pdev) | |
268 | { | |
269 | DSSDBG("shutdown\n"); | |
270 | dss_disable_all_devices(); | |
271 | } | |
272 | ||
559d6701 | 273 | static struct platform_driver omap_dss_driver = { |
559d6701 TV |
274 | .remove = omap_dss_remove, |
275 | .shutdown = omap_dss_shutdown, | |
559d6701 TV |
276 | .driver = { |
277 | .name = "omapdss", | |
278 | .owner = THIS_MODULE, | |
279 | }, | |
280 | }; | |
281 | ||
282 | /* BUS */ | |
283 | static int dss_bus_match(struct device *dev, struct device_driver *driver) | |
284 | { | |
285 | struct omap_dss_device *dssdev = to_dss_device(dev); | |
286 | ||
287 | DSSDBG("bus_match. dev %s/%s, drv %s\n", | |
288 | dev_name(dev), dssdev->driver_name, driver->name); | |
289 | ||
290 | return strcmp(dssdev->driver_name, driver->name) == 0; | |
291 | } | |
292 | ||
293 | static ssize_t device_name_show(struct device *dev, | |
294 | struct device_attribute *attr, char *buf) | |
295 | { | |
296 | struct omap_dss_device *dssdev = to_dss_device(dev); | |
297 | return snprintf(buf, PAGE_SIZE, "%s\n", | |
298 | dssdev->name ? | |
299 | dssdev->name : ""); | |
300 | } | |
301 | ||
302 | static struct device_attribute default_dev_attrs[] = { | |
303 | __ATTR(name, S_IRUGO, device_name_show, NULL), | |
304 | __ATTR_NULL, | |
305 | }; | |
306 | ||
307 | static ssize_t driver_name_show(struct device_driver *drv, char *buf) | |
308 | { | |
309 | struct omap_dss_driver *dssdrv = to_dss_driver(drv); | |
310 | return snprintf(buf, PAGE_SIZE, "%s\n", | |
311 | dssdrv->driver.name ? | |
312 | dssdrv->driver.name : ""); | |
313 | } | |
314 | static struct driver_attribute default_drv_attrs[] = { | |
315 | __ATTR(name, S_IRUGO, driver_name_show, NULL), | |
316 | __ATTR_NULL, | |
317 | }; | |
318 | ||
319 | static struct bus_type dss_bus_type = { | |
320 | .name = "omapdss", | |
321 | .match = dss_bus_match, | |
322 | .dev_attrs = default_dev_attrs, | |
323 | .drv_attrs = default_drv_attrs, | |
324 | }; | |
325 | ||
326 | static void dss_bus_release(struct device *dev) | |
327 | { | |
328 | DSSDBG("bus_release\n"); | |
329 | } | |
330 | ||
331 | static struct device dss_bus = { | |
332 | .release = dss_bus_release, | |
333 | }; | |
334 | ||
335 | struct bus_type *dss_get_bus(void) | |
336 | { | |
337 | return &dss_bus_type; | |
338 | } | |
339 | ||
340 | /* DRIVER */ | |
341 | static int dss_driver_probe(struct device *dev) | |
342 | { | |
343 | int r; | |
344 | struct omap_dss_driver *dssdrv = to_dss_driver(dev->driver); | |
345 | struct omap_dss_device *dssdev = to_dss_device(dev); | |
559d6701 TV |
346 | |
347 | DSSDBG("driver_probe: dev %s/%s, drv %s\n", | |
348 | dev_name(dev), dssdev->driver_name, | |
349 | dssdrv->driver.name); | |
350 | ||
559d6701 TV |
351 | r = dssdrv->probe(dssdev); |
352 | ||
353 | if (r) { | |
354 | DSSERR("driver probe failed: %d\n", r); | |
355 | return r; | |
356 | } | |
357 | ||
358 | DSSDBG("probe done for device %s\n", dev_name(dev)); | |
359 | ||
360 | dssdev->driver = dssdrv; | |
361 | ||
362 | return 0; | |
363 | } | |
364 | ||
365 | static int dss_driver_remove(struct device *dev) | |
366 | { | |
367 | struct omap_dss_driver *dssdrv = to_dss_driver(dev->driver); | |
368 | struct omap_dss_device *dssdev = to_dss_device(dev); | |
369 | ||
370 | DSSDBG("driver_remove: dev %s/%s\n", dev_name(dev), | |
371 | dssdev->driver_name); | |
372 | ||
373 | dssdrv->remove(dssdev); | |
374 | ||
559d6701 TV |
375 | dssdev->driver = NULL; |
376 | ||
377 | return 0; | |
378 | } | |
379 | ||
380 | int omap_dss_register_driver(struct omap_dss_driver *dssdriver) | |
381 | { | |
382 | dssdriver->driver.bus = &dss_bus_type; | |
383 | dssdriver->driver.probe = dss_driver_probe; | |
384 | dssdriver->driver.remove = dss_driver_remove; | |
96adcece TV |
385 | |
386 | if (dssdriver->get_resolution == NULL) | |
387 | dssdriver->get_resolution = omapdss_default_get_resolution; | |
a2699504 TV |
388 | if (dssdriver->get_recommended_bpp == NULL) |
389 | dssdriver->get_recommended_bpp = | |
390 | omapdss_default_get_recommended_bpp; | |
4b6430fc GI |
391 | if (dssdriver->get_timings == NULL) |
392 | dssdriver->get_timings = omapdss_default_get_timings; | |
96adcece | 393 | |
559d6701 TV |
394 | return driver_register(&dssdriver->driver); |
395 | } | |
396 | EXPORT_SYMBOL(omap_dss_register_driver); | |
397 | ||
398 | void omap_dss_unregister_driver(struct omap_dss_driver *dssdriver) | |
399 | { | |
400 | driver_unregister(&dssdriver->driver); | |
401 | } | |
402 | EXPORT_SYMBOL(omap_dss_unregister_driver); | |
403 | ||
404 | /* DEVICE */ | |
559d6701 TV |
405 | |
406 | static void omap_dss_dev_release(struct device *dev) | |
407 | { | |
5274484b TV |
408 | struct omap_dss_device *dssdev = to_dss_device(dev); |
409 | kfree(dssdev); | |
559d6701 TV |
410 | } |
411 | ||
8768a52f TV |
412 | static int disp_num_counter; |
413 | ||
5274484b | 414 | struct omap_dss_device *dss_alloc_and_init_device(struct device *parent) |
559d6701 | 415 | { |
5274484b TV |
416 | struct omap_dss_device *dssdev; |
417 | ||
418 | dssdev = kzalloc(sizeof(*dssdev), GFP_KERNEL); | |
419 | if (!dssdev) | |
420 | return NULL; | |
8768a52f | 421 | |
559d6701 | 422 | dssdev->dev.bus = &dss_bus_type; |
35deca3d | 423 | dssdev->dev.parent = parent; |
559d6701 | 424 | dssdev->dev.release = omap_dss_dev_release; |
8768a52f | 425 | dev_set_name(&dssdev->dev, "display%d", disp_num_counter++); |
5274484b TV |
426 | |
427 | device_initialize(&dssdev->dev); | |
428 | ||
429 | return dssdev; | |
559d6701 TV |
430 | } |
431 | ||
5274484b TV |
432 | int dss_add_device(struct omap_dss_device *dssdev) |
433 | { | |
434 | return device_add(&dssdev->dev); | |
435 | } | |
436 | ||
437 | void dss_put_device(struct omap_dss_device *dssdev) | |
438 | { | |
439 | put_device(&dssdev->dev); | |
440 | } | |
441 | ||
442 | void dss_unregister_device(struct omap_dss_device *dssdev) | |
559d6701 TV |
443 | { |
444 | device_unregister(&dssdev->dev); | |
559d6701 TV |
445 | } |
446 | ||
35deca3d TV |
447 | static int dss_unregister_dss_dev(struct device *dev, void *data) |
448 | { | |
449 | struct omap_dss_device *dssdev = to_dss_device(dev); | |
5274484b | 450 | dss_unregister_device(dssdev); |
35deca3d TV |
451 | return 0; |
452 | } | |
453 | ||
5274484b | 454 | void dss_unregister_child_devices(struct device *parent) |
35deca3d TV |
455 | { |
456 | device_for_each_child(parent, NULL, dss_unregister_dss_dev); | |
457 | } | |
458 | ||
5274484b TV |
459 | void dss_copy_device_pdata(struct omap_dss_device *dst, |
460 | const struct omap_dss_device *src) | |
461 | { | |
462 | u8 *d = (u8 *)dst; | |
463 | u8 *s = (u8 *)src; | |
464 | size_t dsize = sizeof(struct device); | |
465 | ||
466 | memcpy(d + dsize, s + dsize, sizeof(struct omap_dss_device) - dsize); | |
467 | } | |
468 | ||
559d6701 | 469 | /* BUS */ |
6e7e8f06 | 470 | static int __init omap_dss_bus_register(void) |
559d6701 TV |
471 | { |
472 | int r; | |
473 | ||
474 | r = bus_register(&dss_bus_type); | |
475 | if (r) { | |
476 | DSSERR("bus register failed\n"); | |
477 | return r; | |
478 | } | |
479 | ||
480 | dev_set_name(&dss_bus, "omapdss"); | |
481 | r = device_register(&dss_bus); | |
482 | if (r) { | |
483 | DSSERR("bus driver register failed\n"); | |
484 | bus_unregister(&dss_bus_type); | |
485 | return r; | |
486 | } | |
487 | ||
488 | return 0; | |
489 | } | |
490 | ||
491 | /* INIT */ | |
461395c4 | 492 | static int (*dss_output_drv_reg_funcs[])(void) __initdata = { |
046bc575 TV |
493 | #ifdef CONFIG_OMAP2_DSS_DSI |
494 | dsi_init_platform_driver, | |
495 | #endif | |
461395c4 TV |
496 | #ifdef CONFIG_OMAP2_DSS_DPI |
497 | dpi_init_platform_driver, | |
498 | #endif | |
499 | #ifdef CONFIG_OMAP2_DSS_SDI | |
500 | sdi_init_platform_driver, | |
501 | #endif | |
502 | #ifdef CONFIG_OMAP2_DSS_RFBI | |
503 | rfbi_init_platform_driver, | |
504 | #endif | |
505 | #ifdef CONFIG_OMAP2_DSS_VENC | |
506 | venc_init_platform_driver, | |
507 | #endif | |
461395c4 TV |
508 | #ifdef CONFIG_OMAP4_DSS_HDMI |
509 | hdmi_init_platform_driver, | |
510 | #endif | |
511 | }; | |
512 | ||
513 | static void (*dss_output_drv_unreg_funcs[])(void) __exitdata = { | |
046bc575 TV |
514 | #ifdef CONFIG_OMAP2_DSS_DSI |
515 | dsi_uninit_platform_driver, | |
516 | #endif | |
461395c4 TV |
517 | #ifdef CONFIG_OMAP2_DSS_DPI |
518 | dpi_uninit_platform_driver, | |
519 | #endif | |
520 | #ifdef CONFIG_OMAP2_DSS_SDI | |
521 | sdi_uninit_platform_driver, | |
522 | #endif | |
523 | #ifdef CONFIG_OMAP2_DSS_RFBI | |
524 | rfbi_uninit_platform_driver, | |
525 | #endif | |
526 | #ifdef CONFIG_OMAP2_DSS_VENC | |
527 | venc_uninit_platform_driver, | |
528 | #endif | |
461395c4 TV |
529 | #ifdef CONFIG_OMAP4_DSS_HDMI |
530 | hdmi_uninit_platform_driver, | |
531 | #endif | |
532 | }; | |
533 | ||
534 | static bool dss_output_drv_loaded[ARRAY_SIZE(dss_output_drv_reg_funcs)]; | |
559d6701 | 535 | |
dc7e57fa TV |
536 | static int __init omap_dss_register_drivers(void) |
537 | { | |
538 | int r; | |
461395c4 | 539 | int i; |
dc7e57fa | 540 | |
11436e1d | 541 | r = platform_driver_probe(&omap_dss_driver, omap_dss_probe); |
dc7e57fa TV |
542 | if (r) |
543 | return r; | |
544 | ||
545 | r = dss_init_platform_driver(); | |
546 | if (r) { | |
547 | DSSERR("Failed to initialize DSS platform driver\n"); | |
548 | goto err_dss; | |
549 | } | |
550 | ||
551 | r = dispc_init_platform_driver(); | |
552 | if (r) { | |
553 | DSSERR("Failed to initialize dispc platform driver\n"); | |
554 | goto err_dispc; | |
555 | } | |
556 | ||
461395c4 TV |
557 | /* |
558 | * It's ok if the output-driver register fails. It happens, for example, | |
559 | * when there is no output-device (e.g. SDI for OMAP4). | |
560 | */ | |
561 | for (i = 0; i < ARRAY_SIZE(dss_output_drv_reg_funcs); ++i) { | |
562 | r = dss_output_drv_reg_funcs[i](); | |
563 | if (r == 0) | |
564 | dss_output_drv_loaded[i] = true; | |
dc7e57fa TV |
565 | } |
566 | ||
567 | return 0; | |
568 | ||
dc7e57fa TV |
569 | err_dispc: |
570 | dss_uninit_platform_driver(); | |
571 | err_dss: | |
572 | platform_driver_unregister(&omap_dss_driver); | |
573 | ||
574 | return r; | |
575 | } | |
576 | ||
577 | static void __exit omap_dss_unregister_drivers(void) | |
578 | { | |
461395c4 TV |
579 | int i; |
580 | ||
581 | for (i = 0; i < ARRAY_SIZE(dss_output_drv_unreg_funcs); ++i) { | |
582 | if (dss_output_drv_loaded[i]) | |
583 | dss_output_drv_unreg_funcs[i](); | |
584 | } | |
585 | ||
dc7e57fa TV |
586 | dispc_uninit_platform_driver(); |
587 | dss_uninit_platform_driver(); | |
588 | ||
589 | platform_driver_unregister(&omap_dss_driver); | |
590 | } | |
591 | ||
559d6701 TV |
592 | #ifdef CONFIG_OMAP2_DSS_MODULE |
593 | static void omap_dss_bus_unregister(void) | |
594 | { | |
595 | device_unregister(&dss_bus); | |
596 | ||
597 | bus_unregister(&dss_bus_type); | |
598 | } | |
599 | ||
600 | static int __init omap_dss_init(void) | |
601 | { | |
602 | int r; | |
603 | ||
604 | r = omap_dss_bus_register(); | |
605 | if (r) | |
606 | return r; | |
607 | ||
dc7e57fa | 608 | r = omap_dss_register_drivers(); |
559d6701 TV |
609 | if (r) { |
610 | omap_dss_bus_unregister(); | |
611 | return r; | |
612 | } | |
613 | ||
591a0ac7 TV |
614 | dss_initialized = true; |
615 | ||
559d6701 TV |
616 | return 0; |
617 | } | |
618 | ||
619 | static void __exit omap_dss_exit(void) | |
620 | { | |
8a2cfea8 TV |
621 | if (core.vdds_dsi_reg != NULL) { |
622 | regulator_put(core.vdds_dsi_reg); | |
623 | core.vdds_dsi_reg = NULL; | |
624 | } | |
625 | ||
626 | if (core.vdds_sdi_reg != NULL) { | |
627 | regulator_put(core.vdds_sdi_reg); | |
628 | core.vdds_sdi_reg = NULL; | |
629 | } | |
630 | ||
dc7e57fa | 631 | omap_dss_unregister_drivers(); |
559d6701 TV |
632 | |
633 | omap_dss_bus_unregister(); | |
634 | } | |
635 | ||
636 | module_init(omap_dss_init); | |
637 | module_exit(omap_dss_exit); | |
638 | #else | |
639 | static int __init omap_dss_init(void) | |
640 | { | |
641 | return omap_dss_bus_register(); | |
642 | } | |
643 | ||
644 | static int __init omap_dss_init2(void) | |
645 | { | |
591a0ac7 TV |
646 | int r; |
647 | ||
648 | r = omap_dss_register_drivers(); | |
649 | if (r) | |
650 | return r; | |
651 | ||
652 | dss_initialized = true; | |
653 | ||
654 | return 0; | |
559d6701 TV |
655 | } |
656 | ||
657 | core_initcall(omap_dss_init); | |
658 | device_initcall(omap_dss_init2); | |
659 | #endif | |
660 | ||
661 | MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>"); | |
662 | MODULE_DESCRIPTION("OMAP2/3 Display Subsystem"); | |
663 | MODULE_LICENSE("GPL v2"); | |
664 |