Commit | Line | Data |
---|---|---|
1c248b7d ID |
1 | /* |
2 | * Copyright (c) 2011 Samsung Electronics Co., Ltd. | |
3 | * Authors: | |
4 | * Inki Dae <inki.dae@samsung.com> | |
5 | * Joonyoung Shim <jy0922.shim@samsung.com> | |
6 | * Seung-Woo Kim <sw0312.kim@samsung.com> | |
7 | * | |
d81aecb5 ID |
8 | * This program is free software; you can redistribute it and/or modify it |
9 | * under the terms of the GNU General Public License as published by the | |
10 | * Free Software Foundation; either version 2 of the License, or (at your | |
11 | * option) any later version. | |
1c248b7d ID |
12 | */ |
13 | ||
af65c804 | 14 | #include <linux/pm_runtime.h> |
760285e7 DH |
15 | #include <drm/drmP.h> |
16 | #include <drm/drm_crtc_helper.h> | |
1c248b7d | 17 | |
f37cd5e8 | 18 | #include <linux/component.h> |
96f54215 | 19 | |
1c248b7d ID |
20 | #include <drm/exynos_drm.h> |
21 | ||
22 | #include "exynos_drm_drv.h" | |
23 | #include "exynos_drm_crtc.h" | |
24 | #include "exynos_drm_fbdev.h" | |
25 | #include "exynos_drm_fb.h" | |
26 | #include "exynos_drm_gem.h" | |
864ee9e6 | 27 | #include "exynos_drm_plane.h" |
b73d1230 | 28 | #include "exynos_drm_vidi.h" |
d7f1642c | 29 | #include "exynos_drm_g2d.h" |
cb471f14 | 30 | #include "exynos_drm_ipp.h" |
0519f9a1 | 31 | #include "exynos_drm_iommu.h" |
1c248b7d | 32 | |
0edf9936 | 33 | #define DRIVER_NAME "exynos" |
1c248b7d ID |
34 | #define DRIVER_DESC "Samsung SoC DRM" |
35 | #define DRIVER_DATE "20110530" | |
36 | #define DRIVER_MAJOR 1 | |
37 | #define DRIVER_MINOR 0 | |
38 | ||
39 | static int exynos_drm_load(struct drm_device *dev, unsigned long flags) | |
40 | { | |
41 | struct exynos_drm_private *private; | |
6cf27275 GP |
42 | struct drm_encoder *encoder; |
43 | unsigned int clone_mask; | |
44 | int cnt, ret; | |
1c248b7d | 45 | |
1c248b7d | 46 | private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL); |
38bb5253 | 47 | if (!private) |
1c248b7d | 48 | return -ENOMEM; |
1c248b7d | 49 | |
af65c804 | 50 | dev_set_drvdata(dev->dev, dev); |
1c248b7d ID |
51 | dev->dev_private = (void *)private; |
52 | ||
0519f9a1 ID |
53 | /* |
54 | * create mapping to manage iommu table and set a pointer to iommu | |
55 | * mapping structure to iommu_mapping of private data. | |
56 | * also this iommu_mapping can be used to check if iommu is supported | |
57 | * or not. | |
58 | */ | |
59 | ret = drm_create_iommu_mapping(dev); | |
60 | if (ret < 0) { | |
61 | DRM_ERROR("failed to create iommu mapping.\n"); | |
d2ba65f6 | 62 | goto err_free_private; |
0519f9a1 ID |
63 | } |
64 | ||
1c248b7d ID |
65 | drm_mode_config_init(dev); |
66 | ||
67 | exynos_drm_mode_config_init(dev); | |
68 | ||
d081f566 | 69 | /* setup possible_clones. */ |
6cf27275 GP |
70 | cnt = 0; |
71 | clone_mask = 0; | |
72 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
73 | clone_mask |= (1 << (cnt++)); | |
74 | ||
75 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) | |
76 | encoder->possible_clones = clone_mask; | |
d081f566 | 77 | |
a9a346d6 DV |
78 | platform_set_drvdata(dev->platformdev, dev); |
79 | ||
f37cd5e8 ID |
80 | /* Try to bind all sub drivers. */ |
81 | ret = component_bind_all(dev->dev, dev); | |
82 | if (ret) | |
c52142e6 AH |
83 | goto err_mode_config_cleanup; |
84 | ||
85 | ret = drm_vblank_init(dev, dev->mode_config.num_crtc); | |
86 | if (ret) | |
87 | goto err_unbind_all; | |
f37cd5e8 | 88 | |
d1afe7d4 | 89 | /* Probe non kms sub drivers and virtual display driver. */ |
f37cd5e8 ID |
90 | ret = exynos_drm_device_subdrv_probe(dev); |
91 | if (ret) | |
c52142e6 | 92 | goto err_cleanup_vblank; |
f37cd5e8 | 93 | |
4ea9526b GP |
94 | drm_mode_config_reset(dev); |
95 | ||
4a3ffedd JS |
96 | /* |
97 | * enable drm irq mode. | |
98 | * - with irq_enabled = true, we can use the vblank feature. | |
99 | * | |
100 | * P.S. note that we wouldn't use drm irq handler but | |
101 | * just specific driver own one instead because | |
102 | * drm framework supports only one irq handler. | |
103 | */ | |
104 | dev->irq_enabled = true; | |
105 | ||
106 | /* | |
107 | * with vblank_disable_allowed = true, vblank interrupt will be disabled | |
108 | * by drm timer once a current process gives up ownership of | |
109 | * vblank event.(after drm_vblank_put function is called) | |
110 | */ | |
111 | dev->vblank_disable_allowed = true; | |
112 | ||
3cb6830a AH |
113 | /* init kms poll for handling hpd */ |
114 | drm_kms_helper_poll_init(dev); | |
115 | ||
116 | /* force connectors detection */ | |
117 | drm_helper_hpd_irq_event(dev); | |
118 | ||
1c248b7d ID |
119 | return 0; |
120 | ||
f37cd5e8 | 121 | err_cleanup_vblank: |
1c248b7d | 122 | drm_vblank_cleanup(dev); |
c52142e6 AH |
123 | err_unbind_all: |
124 | component_unbind_all(dev->dev, dev); | |
080be03d SP |
125 | err_mode_config_cleanup: |
126 | drm_mode_config_cleanup(dev); | |
0519f9a1 | 127 | drm_release_iommu_mapping(dev); |
d2ba65f6 | 128 | err_free_private: |
1c248b7d ID |
129 | kfree(private); |
130 | ||
131 | return ret; | |
132 | } | |
133 | ||
134 | static int exynos_drm_unload(struct drm_device *dev) | |
135 | { | |
f37cd5e8 ID |
136 | exynos_drm_device_subdrv_remove(dev); |
137 | ||
1c248b7d | 138 | exynos_drm_fbdev_fini(dev); |
7db3eba6 | 139 | drm_kms_helper_poll_fini(dev); |
0519f9a1 | 140 | |
9f3dd7db | 141 | drm_vblank_cleanup(dev); |
c52142e6 | 142 | component_unbind_all(dev->dev, dev); |
9f3dd7db | 143 | drm_mode_config_cleanup(dev); |
0519f9a1 | 144 | drm_release_iommu_mapping(dev); |
1c248b7d | 145 | |
9f3dd7db | 146 | kfree(dev->dev_private); |
1c248b7d ID |
147 | dev->dev_private = NULL; |
148 | ||
149 | return 0; | |
150 | } | |
151 | ||
af65c804 SP |
152 | static int exynos_drm_suspend(struct drm_device *dev, pm_message_t state) |
153 | { | |
154 | struct drm_connector *connector; | |
155 | ||
156 | drm_modeset_lock_all(dev); | |
157 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
158 | int old_dpms = connector->dpms; | |
159 | ||
160 | if (connector->funcs->dpms) | |
161 | connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF); | |
162 | ||
163 | /* Set the old mode back to the connector for resume */ | |
164 | connector->dpms = old_dpms; | |
165 | } | |
166 | drm_modeset_unlock_all(dev); | |
167 | ||
168 | return 0; | |
169 | } | |
170 | ||
171 | static int exynos_drm_resume(struct drm_device *dev) | |
172 | { | |
173 | struct drm_connector *connector; | |
174 | ||
175 | drm_modeset_lock_all(dev); | |
176 | list_for_each_entry(connector, &dev->mode_config.connector_list, head) { | |
74cfe07a AH |
177 | if (connector->funcs->dpms) { |
178 | int dpms = connector->dpms; | |
179 | ||
180 | connector->dpms = DRM_MODE_DPMS_OFF; | |
181 | connector->funcs->dpms(connector, dpms); | |
182 | } | |
af65c804 | 183 | } |
a16f223e | 184 | drm_modeset_unlock_all(dev); |
af65c804 | 185 | |
af65c804 SP |
186 | return 0; |
187 | } | |
188 | ||
9084f7b8 JS |
189 | static int exynos_drm_open(struct drm_device *dev, struct drm_file *file) |
190 | { | |
d7f1642c | 191 | struct drm_exynos_file_private *file_priv; |
ba3706c0 | 192 | int ret; |
d7f1642c | 193 | |
d7f1642c JS |
194 | file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL); |
195 | if (!file_priv) | |
196 | return -ENOMEM; | |
197 | ||
d7f1642c | 198 | file->driver_priv = file_priv; |
b2df26c1 | 199 | |
ba3706c0 | 200 | ret = exynos_drm_subdrv_open(dev, file); |
6ca605f7 | 201 | if (ret) |
307ceaff | 202 | goto err_file_priv_free; |
ba3706c0 | 203 | |
6ca605f7 | 204 | return ret; |
307ceaff | 205 | |
307ceaff | 206 | err_file_priv_free: |
6ca605f7 SK |
207 | kfree(file_priv); |
208 | file->driver_priv = NULL; | |
ba3706c0 | 209 | return ret; |
9084f7b8 JS |
210 | } |
211 | ||
ccf4d883 | 212 | static void exynos_drm_preclose(struct drm_device *dev, |
6f811502 | 213 | struct drm_file *file) |
0cbc330e ID |
214 | { |
215 | exynos_drm_subdrv_close(dev, file); | |
216 | } | |
217 | ||
218 | static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file) | |
ccf4d883 | 219 | { |
0cbc330e | 220 | struct drm_pending_event *e, *et; |
3ab09435 JS |
221 | unsigned long flags; |
222 | ||
0cbc330e ID |
223 | if (!file->driver_priv) |
224 | return; | |
225 | ||
3ab09435 | 226 | spin_lock_irqsave(&dev->event_lock, flags); |
0cbc330e ID |
227 | /* Release all events handled by page flip handler but not freed. */ |
228 | list_for_each_entry_safe(e, et, &file->event_list, link) { | |
229 | list_del(&e->link); | |
230 | e->destroy(e); | |
231 | } | |
232 | spin_unlock_irqrestore(&dev->event_lock, flags); | |
ccf4d883 | 233 | |
53ef299f ID |
234 | kfree(file->driver_priv); |
235 | file->driver_priv = NULL; | |
236 | } | |
237 | ||
1c248b7d ID |
238 | static void exynos_drm_lastclose(struct drm_device *dev) |
239 | { | |
1c248b7d ID |
240 | exynos_drm_fbdev_restore_mode(dev); |
241 | } | |
242 | ||
78b68556 | 243 | static const struct vm_operations_struct exynos_drm_gem_vm_ops = { |
1c248b7d ID |
244 | .fault = exynos_drm_gem_fault, |
245 | .open = drm_gem_vm_open, | |
246 | .close = drm_gem_vm_close, | |
247 | }; | |
248 | ||
baa70943 | 249 | static const struct drm_ioctl_desc exynos_ioctls[] = { |
1c248b7d ID |
250 | DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl, |
251 | DRM_UNLOCKED | DRM_AUTH), | |
40cd7e0c ID |
252 | DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET, |
253 | exynos_drm_gem_get_ioctl, DRM_UNLOCKED), | |
b73d1230 ID |
254 | DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION, |
255 | vidi_connection_ioctl, DRM_UNLOCKED | DRM_AUTH), | |
d7f1642c JS |
256 | DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER, |
257 | exynos_g2d_get_ver_ioctl, DRM_UNLOCKED | DRM_AUTH), | |
258 | DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST, | |
259 | exynos_g2d_set_cmdlist_ioctl, DRM_UNLOCKED | DRM_AUTH), | |
260 | DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC, | |
261 | exynos_g2d_exec_ioctl, DRM_UNLOCKED | DRM_AUTH), | |
cb471f14 EK |
262 | DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY, |
263 | exynos_drm_ipp_get_property, DRM_UNLOCKED | DRM_AUTH), | |
264 | DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY, | |
265 | exynos_drm_ipp_set_property, DRM_UNLOCKED | DRM_AUTH), | |
266 | DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF, | |
267 | exynos_drm_ipp_queue_buf, DRM_UNLOCKED | DRM_AUTH), | |
268 | DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL, | |
269 | exynos_drm_ipp_cmd_ctrl, DRM_UNLOCKED | DRM_AUTH), | |
1c248b7d ID |
270 | }; |
271 | ||
ac2bdf73 JS |
272 | static const struct file_operations exynos_drm_driver_fops = { |
273 | .owner = THIS_MODULE, | |
274 | .open = drm_open, | |
275 | .mmap = exynos_drm_gem_mmap, | |
276 | .poll = drm_poll, | |
277 | .read = drm_read, | |
278 | .unlocked_ioctl = drm_ioctl, | |
804d74ab KP |
279 | #ifdef CONFIG_COMPAT |
280 | .compat_ioctl = drm_compat_ioctl, | |
281 | #endif | |
ac2bdf73 JS |
282 | .release = drm_release, |
283 | }; | |
284 | ||
1c248b7d | 285 | static struct drm_driver exynos_drm_driver = { |
be9b64a8 | 286 | .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME, |
1c248b7d ID |
287 | .load = exynos_drm_load, |
288 | .unload = exynos_drm_unload, | |
af65c804 SP |
289 | .suspend = exynos_drm_suspend, |
290 | .resume = exynos_drm_resume, | |
9084f7b8 | 291 | .open = exynos_drm_open, |
ccf4d883 | 292 | .preclose = exynos_drm_preclose, |
1c248b7d | 293 | .lastclose = exynos_drm_lastclose, |
53ef299f | 294 | .postclose = exynos_drm_postclose, |
915b4d11 | 295 | .set_busid = drm_platform_set_busid, |
1c248b7d ID |
296 | .get_vblank_counter = drm_vblank_count, |
297 | .enable_vblank = exynos_drm_crtc_enable_vblank, | |
298 | .disable_vblank = exynos_drm_crtc_disable_vblank, | |
1c248b7d ID |
299 | .gem_free_object = exynos_drm_gem_free_object, |
300 | .gem_vm_ops = &exynos_drm_gem_vm_ops, | |
301 | .dumb_create = exynos_drm_gem_dumb_create, | |
302 | .dumb_map_offset = exynos_drm_gem_dumb_map_offset, | |
43387b37 | 303 | .dumb_destroy = drm_gem_dumb_destroy, |
b2df26c1 ID |
304 | .prime_handle_to_fd = drm_gem_prime_handle_to_fd, |
305 | .prime_fd_to_handle = drm_gem_prime_fd_to_handle, | |
01ed50dd JS |
306 | .gem_prime_export = drm_gem_prime_export, |
307 | .gem_prime_import = drm_gem_prime_import, | |
308 | .gem_prime_get_sg_table = exynos_drm_gem_prime_get_sg_table, | |
309 | .gem_prime_import_sg_table = exynos_drm_gem_prime_import_sg_table, | |
310 | .gem_prime_vmap = exynos_drm_gem_prime_vmap, | |
311 | .gem_prime_vunmap = exynos_drm_gem_prime_vunmap, | |
1c248b7d | 312 | .ioctls = exynos_ioctls, |
baa70943 | 313 | .num_ioctls = ARRAY_SIZE(exynos_ioctls), |
ac2bdf73 | 314 | .fops = &exynos_drm_driver_fops, |
1c248b7d ID |
315 | .name = DRIVER_NAME, |
316 | .desc = DRIVER_DESC, | |
317 | .date = DRIVER_DATE, | |
318 | .major = DRIVER_MAJOR, | |
319 | .minor = DRIVER_MINOR, | |
320 | }; | |
321 | ||
af65c804 SP |
322 | #ifdef CONFIG_PM_SLEEP |
323 | static int exynos_drm_sys_suspend(struct device *dev) | |
324 | { | |
325 | struct drm_device *drm_dev = dev_get_drvdata(dev); | |
326 | pm_message_t message; | |
327 | ||
d50a1907 | 328 | if (pm_runtime_suspended(dev) || !drm_dev) |
af65c804 SP |
329 | return 0; |
330 | ||
331 | message.event = PM_EVENT_SUSPEND; | |
332 | return exynos_drm_suspend(drm_dev, message); | |
333 | } | |
334 | ||
335 | static int exynos_drm_sys_resume(struct device *dev) | |
336 | { | |
337 | struct drm_device *drm_dev = dev_get_drvdata(dev); | |
338 | ||
d50a1907 | 339 | if (pm_runtime_suspended(dev) || !drm_dev) |
af65c804 SP |
340 | return 0; |
341 | ||
342 | return exynos_drm_resume(drm_dev); | |
343 | } | |
344 | #endif | |
345 | ||
af65c804 SP |
346 | static const struct dev_pm_ops exynos_drm_pm_ops = { |
347 | SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_sys_suspend, exynos_drm_sys_resume) | |
af65c804 SP |
348 | }; |
349 | ||
86650408 AH |
350 | /* forward declaration */ |
351 | static struct platform_driver exynos_drm_platform_driver; | |
f37cd5e8 | 352 | |
86650408 AH |
353 | /* |
354 | * Connector drivers should not be placed before associated crtc drivers, | |
355 | * because connector requires pipe number of its crtc during initialization. | |
356 | */ | |
357 | static struct platform_driver *const exynos_drm_kms_drivers[] = { | |
86650408 AH |
358 | #ifdef CONFIG_DRM_EXYNOS_FIMD |
359 | &fimd_driver, | |
360 | #endif | |
361 | #ifdef CONFIG_DRM_EXYNOS5433_DECON | |
362 | &exynos5433_decon_driver, | |
363 | #endif | |
364 | #ifdef CONFIG_DRM_EXYNOS7_DECON | |
365 | &decon_driver, | |
366 | #endif | |
77bbd891 HH |
367 | #ifdef CONFIG_DRM_EXYNOS_MIC |
368 | &mic_driver, | |
369 | #endif | |
86650408 AH |
370 | #ifdef CONFIG_DRM_EXYNOS_DP |
371 | &dp_driver, | |
372 | #endif | |
373 | #ifdef CONFIG_DRM_EXYNOS_DSI | |
374 | &dsi_driver, | |
375 | #endif | |
376 | #ifdef CONFIG_DRM_EXYNOS_HDMI | |
377 | &mixer_driver, | |
378 | &hdmi_driver, | |
379 | #endif | |
735c21c3 JS |
380 | #ifdef CONFIG_DRM_EXYNOS_VIDI |
381 | &vidi_driver, | |
382 | #endif | |
86650408 | 383 | }; |
df5225bc | 384 | |
86650408 | 385 | static struct platform_driver *const exynos_drm_non_kms_drivers[] = { |
86650408 AH |
386 | #ifdef CONFIG_DRM_EXYNOS_G2D |
387 | &g2d_driver, | |
388 | #endif | |
389 | #ifdef CONFIG_DRM_EXYNOS_FIMC | |
390 | &fimc_driver, | |
391 | #endif | |
392 | #ifdef CONFIG_DRM_EXYNOS_ROTATOR | |
393 | &rotator_driver, | |
394 | #endif | |
395 | #ifdef CONFIG_DRM_EXYNOS_GSC | |
396 | &gsc_driver, | |
397 | #endif | |
398 | #ifdef CONFIG_DRM_EXYNOS_IPP | |
399 | &ipp_driver, | |
400 | #endif | |
401 | &exynos_drm_platform_driver, | |
402 | }; | |
f37cd5e8 | 403 | |
86650408 AH |
404 | static struct platform_driver *const exynos_drm_drv_with_simple_dev[] = { |
405 | #ifdef CONFIG_DRM_EXYNOS_VIDI | |
406 | &vidi_driver, | |
407 | #endif | |
408 | #ifdef CONFIG_DRM_EXYNOS_IPP | |
409 | &ipp_driver, | |
410 | #endif | |
411 | &exynos_drm_platform_driver, | |
412 | }; | |
413 | #define PDEV_COUNT ARRAY_SIZE(exynos_drm_drv_with_simple_dev) | |
f37cd5e8 | 414 | |
53c5558d | 415 | static int compare_dev(struct device *dev, void *data) |
f37cd5e8 ID |
416 | { |
417 | return dev == (struct device *)data; | |
418 | } | |
419 | ||
53c5558d | 420 | static struct component_match *exynos_drm_match_add(struct device *dev) |
f37cd5e8 | 421 | { |
53c5558d | 422 | struct component_match *match = NULL; |
86650408 | 423 | int i; |
f37cd5e8 | 424 | |
86650408 AH |
425 | for (i = 0; i < ARRAY_SIZE(exynos_drm_kms_drivers); ++i) { |
426 | struct device_driver *drv = &exynos_drm_kms_drivers[i]->driver; | |
427 | struct device *p = NULL, *d; | |
f7c2f36f | 428 | |
86650408 AH |
429 | while ((d = bus_find_device(&platform_bus_type, p, drv, |
430 | (void *)platform_bus_type.match))) { | |
431 | put_device(p); | |
432 | component_match_add(dev, &match, compare_dev, d); | |
433 | p = d; | |
df5225bc | 434 | } |
86650408 | 435 | put_device(p); |
f37cd5e8 ID |
436 | } |
437 | ||
86650408 | 438 | return match ?: ERR_PTR(-ENODEV); |
f37cd5e8 ID |
439 | } |
440 | ||
441 | static int exynos_drm_bind(struct device *dev) | |
442 | { | |
f37cd5e8 ID |
443 | return drm_platform_init(&exynos_drm_driver, to_platform_device(dev)); |
444 | } | |
445 | ||
446 | static void exynos_drm_unbind(struct device *dev) | |
447 | { | |
448 | drm_put_dev(dev_get_drvdata(dev)); | |
449 | } | |
450 | ||
451 | static const struct component_master_ops exynos_drm_ops = { | |
f37cd5e8 ID |
452 | .bind = exynos_drm_bind, |
453 | .unbind = exynos_drm_unbind, | |
1c248b7d ID |
454 | }; |
455 | ||
417133e4 AH |
456 | static int exynos_drm_platform_probe(struct platform_device *pdev) |
457 | { | |
458 | struct component_match *match; | |
459 | ||
460 | pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); | |
461 | exynos_drm_driver.num_ioctls = ARRAY_SIZE(exynos_ioctls); | |
462 | ||
463 | match = exynos_drm_match_add(&pdev->dev); | |
464 | if (IS_ERR(match)) | |
465 | return PTR_ERR(match); | |
466 | ||
467 | return component_master_add_with_match(&pdev->dev, &exynos_drm_ops, | |
468 | match); | |
469 | } | |
470 | ||
471 | static int exynos_drm_platform_remove(struct platform_device *pdev) | |
472 | { | |
473 | component_master_del(&pdev->dev, &exynos_drm_ops); | |
474 | return 0; | |
475 | } | |
476 | ||
477 | static struct platform_driver exynos_drm_platform_driver = { | |
478 | .probe = exynos_drm_platform_probe, | |
479 | .remove = exynos_drm_platform_remove, | |
480 | .driver = { | |
481 | .name = "exynos-drm", | |
482 | .pm = &exynos_drm_pm_ops, | |
483 | }, | |
484 | }; | |
485 | ||
417133e4 AH |
486 | static struct platform_device *exynos_drm_pdevs[PDEV_COUNT]; |
487 | ||
488 | static void exynos_drm_unregister_devices(void) | |
72390677 | 489 | { |
417133e4 | 490 | int i = PDEV_COUNT; |
25928a39 | 491 | |
417133e4 AH |
492 | while (--i >= 0) { |
493 | platform_device_unregister(exynos_drm_pdevs[i]); | |
494 | exynos_drm_pdevs[i] = NULL; | |
495 | } | |
496 | } | |
7eb8f069 | 497 | |
417133e4 AH |
498 | static int exynos_drm_register_devices(void) |
499 | { | |
500 | int i; | |
501 | ||
502 | for (i = 0; i < PDEV_COUNT; ++i) { | |
503 | struct platform_driver *d = exynos_drm_drv_with_simple_dev[i]; | |
504 | struct platform_device *pdev = | |
505 | platform_device_register_simple(d->driver.name, -1, | |
506 | NULL, 0); | |
507 | ||
508 | if (!IS_ERR(pdev)) { | |
509 | exynos_drm_pdevs[i] = pdev; | |
510 | continue; | |
511 | } | |
512 | while (--i >= 0) { | |
513 | platform_device_unregister(exynos_drm_pdevs[i]); | |
514 | exynos_drm_pdevs[i] = NULL; | |
515 | } | |
516 | ||
517 | return PTR_ERR(pdev); | |
72390677 | 518 | } |
f37cd5e8 | 519 | |
417133e4 | 520 | return 0; |
1c248b7d ID |
521 | } |
522 | ||
417133e4 AH |
523 | static void exynos_drm_unregister_drivers(struct platform_driver * const *drv, |
524 | int count) | |
1c248b7d | 525 | { |
417133e4 AH |
526 | while (--count >= 0) |
527 | platform_driver_unregister(drv[count]); | |
528 | } | |
529 | ||
530 | static int exynos_drm_register_drivers(struct platform_driver * const *drv, | |
531 | int count) | |
532 | { | |
533 | int i, ret; | |
534 | ||
535 | for (i = 0; i < count; ++i) { | |
536 | ret = platform_driver_register(drv[i]); | |
537 | if (!ret) | |
538 | continue; | |
539 | ||
540 | while (--i >= 0) | |
541 | platform_driver_unregister(drv[i]); | |
542 | ||
543 | return ret; | |
544 | } | |
545 | ||
f37cd5e8 ID |
546 | return 0; |
547 | } | |
548 | ||
417133e4 AH |
549 | static inline int exynos_drm_register_kms_drivers(void) |
550 | { | |
551 | return exynos_drm_register_drivers(exynos_drm_kms_drivers, | |
552 | ARRAY_SIZE(exynos_drm_kms_drivers)); | |
553 | } | |
554 | ||
555 | static inline int exynos_drm_register_non_kms_drivers(void) | |
556 | { | |
557 | return exynos_drm_register_drivers(exynos_drm_non_kms_drivers, | |
558 | ARRAY_SIZE(exynos_drm_non_kms_drivers)); | |
559 | } | |
560 | ||
561 | static inline void exynos_drm_unregister_kms_drivers(void) | |
562 | { | |
563 | exynos_drm_unregister_drivers(exynos_drm_kms_drivers, | |
564 | ARRAY_SIZE(exynos_drm_kms_drivers)); | |
565 | } | |
566 | ||
567 | static inline void exynos_drm_unregister_non_kms_drivers(void) | |
568 | { | |
569 | exynos_drm_unregister_drivers(exynos_drm_non_kms_drivers, | |
570 | ARRAY_SIZE(exynos_drm_non_kms_drivers)); | |
571 | } | |
572 | ||
f37cd5e8 ID |
573 | static int exynos_drm_init(void) |
574 | { | |
e3b9e460 | 575 | int ret; |
f37cd5e8 | 576 | |
417133e4 AH |
577 | ret = exynos_drm_register_devices(); |
578 | if (ret) | |
579 | return ret; | |
820687be | 580 | |
417133e4 AH |
581 | ret = exynos_drm_register_kms_drivers(); |
582 | if (ret) | |
583 | goto err_unregister_pdevs; | |
f37cd5e8 | 584 | |
417133e4 | 585 | ret = exynos_drm_register_non_kms_drivers(); |
f37cd5e8 | 586 | if (ret) |
417133e4 | 587 | goto err_unregister_kms_drivers; |
f37cd5e8 ID |
588 | |
589 | return 0; | |
590 | ||
820687be | 591 | err_unregister_kms_drivers: |
417133e4 | 592 | exynos_drm_unregister_kms_drivers(); |
820687be | 593 | |
417133e4 AH |
594 | err_unregister_pdevs: |
595 | exynos_drm_unregister_devices(); | |
f37cd5e8 ID |
596 | |
597 | return ret; | |
598 | } | |
599 | ||
600 | static void exynos_drm_exit(void) | |
601 | { | |
417133e4 AH |
602 | exynos_drm_unregister_non_kms_drivers(); |
603 | exynos_drm_unregister_kms_drivers(); | |
604 | exynos_drm_unregister_devices(); | |
1c248b7d ID |
605 | } |
606 | ||
607 | module_init(exynos_drm_init); | |
608 | module_exit(exynos_drm_exit); | |
609 | ||
610 | MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>"); | |
611 | MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); | |
612 | MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>"); | |
613 | MODULE_DESCRIPTION("Samsung SoC DRM Driver"); | |
614 | MODULE_LICENSE("GPL"); |