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Commit | Line | Data |
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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 | 15 | #include <drm/drmP.h> |
a379df19 GP |
16 | #include <drm/drm_atomic.h> |
17 | #include <drm/drm_atomic_helper.h> | |
760285e7 | 18 | #include <drm/drm_crtc_helper.h> |
1c248b7d | 19 | |
f37cd5e8 | 20 | #include <linux/component.h> |
96f54215 | 21 | |
1c248b7d ID |
22 | #include <drm/exynos_drm.h> |
23 | ||
24 | #include "exynos_drm_drv.h" | |
1c248b7d ID |
25 | #include "exynos_drm_fbdev.h" |
26 | #include "exynos_drm_fb.h" | |
27 | #include "exynos_drm_gem.h" | |
864ee9e6 | 28 | #include "exynos_drm_plane.h" |
b73d1230 | 29 | #include "exynos_drm_vidi.h" |
d7f1642c | 30 | #include "exynos_drm_g2d.h" |
cb471f14 | 31 | #include "exynos_drm_ipp.h" |
0519f9a1 | 32 | #include "exynos_drm_iommu.h" |
1c248b7d | 33 | |
0edf9936 | 34 | #define DRIVER_NAME "exynos" |
1c248b7d ID |
35 | #define DRIVER_DESC "Samsung SoC DRM" |
36 | #define DRIVER_DATE "20110530" | |
37 | #define DRIVER_MAJOR 1 | |
38 | #define DRIVER_MINOR 0 | |
39 | ||
f43c3596 MS |
40 | static struct device *exynos_drm_get_dma_device(void); |
41 | ||
38d868e4 VS |
42 | int exynos_atomic_check(struct drm_device *dev, |
43 | struct drm_atomic_state *state) | |
44 | { | |
45 | int ret; | |
46 | ||
47 | ret = drm_atomic_helper_check_modeset(dev, state); | |
48 | if (ret) | |
49 | return ret; | |
50 | ||
51 | ret = drm_atomic_normalize_zpos(dev, state); | |
52 | if (ret) | |
53 | return ret; | |
54 | ||
55 | ret = drm_atomic_helper_check_planes(dev, state); | |
56 | if (ret) | |
57 | return ret; | |
58 | ||
59 | return ret; | |
60 | } | |
61 | ||
9084f7b8 JS |
62 | static int exynos_drm_open(struct drm_device *dev, struct drm_file *file) |
63 | { | |
d7f1642c | 64 | struct drm_exynos_file_private *file_priv; |
ba3706c0 | 65 | int ret; |
d7f1642c | 66 | |
d7f1642c JS |
67 | file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL); |
68 | if (!file_priv) | |
69 | return -ENOMEM; | |
70 | ||
d7f1642c | 71 | file->driver_priv = file_priv; |
b2df26c1 | 72 | |
ba3706c0 | 73 | ret = exynos_drm_subdrv_open(dev, file); |
6ca605f7 | 74 | if (ret) |
307ceaff | 75 | goto err_file_priv_free; |
ba3706c0 | 76 | |
6ca605f7 | 77 | return ret; |
307ceaff | 78 | |
307ceaff | 79 | err_file_priv_free: |
6ca605f7 SK |
80 | kfree(file_priv); |
81 | file->driver_priv = NULL; | |
ba3706c0 | 82 | return ret; |
9084f7b8 JS |
83 | } |
84 | ||
0cbc330e | 85 | static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file) |
ccf4d883 | 86 | { |
b13b4d1b | 87 | exynos_drm_subdrv_close(dev, file); |
53ef299f ID |
88 | kfree(file->driver_priv); |
89 | file->driver_priv = NULL; | |
90 | } | |
91 | ||
1c248b7d ID |
92 | static void exynos_drm_lastclose(struct drm_device *dev) |
93 | { | |
1c248b7d ID |
94 | exynos_drm_fbdev_restore_mode(dev); |
95 | } | |
96 | ||
78b68556 | 97 | static const struct vm_operations_struct exynos_drm_gem_vm_ops = { |
1c248b7d ID |
98 | .fault = exynos_drm_gem_fault, |
99 | .open = drm_gem_vm_open, | |
100 | .close = drm_gem_vm_close, | |
101 | }; | |
102 | ||
baa70943 | 103 | static const struct drm_ioctl_desc exynos_ioctls[] = { |
1c248b7d | 104 | DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl, |
f8c47144 | 105 | DRM_AUTH | DRM_RENDER_ALLOW), |
6564c65f JS |
106 | DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP, exynos_drm_gem_map_ioctl, |
107 | DRM_AUTH | DRM_RENDER_ALLOW), | |
74f230d2 | 108 | DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET, exynos_drm_gem_get_ioctl, |
f8c47144 | 109 | DRM_RENDER_ALLOW), |
74f230d2 | 110 | DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION, vidi_connection_ioctl, |
f8c47144 | 111 | DRM_AUTH), |
74f230d2 | 112 | DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER, exynos_g2d_get_ver_ioctl, |
f8c47144 | 113 | DRM_AUTH | DRM_RENDER_ALLOW), |
74f230d2 | 114 | DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST, exynos_g2d_set_cmdlist_ioctl, |
f8c47144 | 115 | DRM_AUTH | DRM_RENDER_ALLOW), |
74f230d2 | 116 | DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC, exynos_g2d_exec_ioctl, |
f8c47144 | 117 | DRM_AUTH | DRM_RENDER_ALLOW), |
74f230d2 | 118 | DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_PROPERTY, exynos_drm_ipp_get_property, |
f8c47144 | 119 | DRM_AUTH | DRM_RENDER_ALLOW), |
74f230d2 | 120 | DRM_IOCTL_DEF_DRV(EXYNOS_IPP_SET_PROPERTY, exynos_drm_ipp_set_property, |
f8c47144 | 121 | DRM_AUTH | DRM_RENDER_ALLOW), |
74f230d2 | 122 | DRM_IOCTL_DEF_DRV(EXYNOS_IPP_QUEUE_BUF, exynos_drm_ipp_queue_buf, |
f8c47144 | 123 | DRM_AUTH | DRM_RENDER_ALLOW), |
74f230d2 | 124 | DRM_IOCTL_DEF_DRV(EXYNOS_IPP_CMD_CTRL, exynos_drm_ipp_cmd_ctrl, |
f8c47144 | 125 | DRM_AUTH | DRM_RENDER_ALLOW), |
1c248b7d ID |
126 | }; |
127 | ||
ac2bdf73 JS |
128 | static const struct file_operations exynos_drm_driver_fops = { |
129 | .owner = THIS_MODULE, | |
130 | .open = drm_open, | |
131 | .mmap = exynos_drm_gem_mmap, | |
132 | .poll = drm_poll, | |
133 | .read = drm_read, | |
134 | .unlocked_ioctl = drm_ioctl, | |
804d74ab | 135 | .compat_ioctl = drm_compat_ioctl, |
ac2bdf73 JS |
136 | .release = drm_release, |
137 | }; | |
138 | ||
1c248b7d | 139 | static struct drm_driver exynos_drm_driver = { |
c8c38ccf | 140 | .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME |
74f230d2 | 141 | | DRIVER_ATOMIC | DRIVER_RENDER, |
9084f7b8 | 142 | .open = exynos_drm_open, |
1c248b7d | 143 | .lastclose = exynos_drm_lastclose, |
53ef299f | 144 | .postclose = exynos_drm_postclose, |
201f9b97 | 145 | .gem_free_object_unlocked = exynos_drm_gem_free_object, |
1c248b7d ID |
146 | .gem_vm_ops = &exynos_drm_gem_vm_ops, |
147 | .dumb_create = exynos_drm_gem_dumb_create, | |
b2df26c1 ID |
148 | .prime_handle_to_fd = drm_gem_prime_handle_to_fd, |
149 | .prime_fd_to_handle = drm_gem_prime_fd_to_handle, | |
01ed50dd JS |
150 | .gem_prime_export = drm_gem_prime_export, |
151 | .gem_prime_import = drm_gem_prime_import, | |
152 | .gem_prime_get_sg_table = exynos_drm_gem_prime_get_sg_table, | |
153 | .gem_prime_import_sg_table = exynos_drm_gem_prime_import_sg_table, | |
154 | .gem_prime_vmap = exynos_drm_gem_prime_vmap, | |
155 | .gem_prime_vunmap = exynos_drm_gem_prime_vunmap, | |
5a0202f7 | 156 | .gem_prime_mmap = exynos_drm_gem_prime_mmap, |
1c248b7d | 157 | .ioctls = exynos_ioctls, |
baa70943 | 158 | .num_ioctls = ARRAY_SIZE(exynos_ioctls), |
ac2bdf73 | 159 | .fops = &exynos_drm_driver_fops, |
1c248b7d ID |
160 | .name = DRIVER_NAME, |
161 | .desc = DRIVER_DESC, | |
162 | .date = DRIVER_DATE, | |
163 | .major = DRIVER_MAJOR, | |
164 | .minor = DRIVER_MINOR, | |
165 | }; | |
166 | ||
af65c804 | 167 | #ifdef CONFIG_PM_SLEEP |
082ca313 | 168 | static int exynos_drm_suspend(struct device *dev) |
af65c804 SP |
169 | { |
170 | struct drm_device *drm_dev = dev_get_drvdata(dev); | |
0a51897b | 171 | struct exynos_drm_private *private; |
af65c804 | 172 | |
d50a1907 | 173 | if (pm_runtime_suspended(dev) || !drm_dev) |
af65c804 SP |
174 | return 0; |
175 | ||
0a51897b MS |
176 | private = drm_dev->dev_private; |
177 | ||
6e8edf8a MS |
178 | drm_kms_helper_poll_disable(drm_dev); |
179 | exynos_drm_fbdev_suspend(drm_dev); | |
180 | private->suspend_state = drm_atomic_helper_suspend(drm_dev); | |
181 | if (IS_ERR(private->suspend_state)) { | |
182 | exynos_drm_fbdev_resume(drm_dev); | |
183 | drm_kms_helper_poll_enable(drm_dev); | |
184 | return PTR_ERR(private->suspend_state); | |
082ca313 | 185 | } |
082ca313 AH |
186 | |
187 | return 0; | |
af65c804 SP |
188 | } |
189 | ||
082ca313 | 190 | static int exynos_drm_resume(struct device *dev) |
af65c804 SP |
191 | { |
192 | struct drm_device *drm_dev = dev_get_drvdata(dev); | |
0a51897b | 193 | struct exynos_drm_private *private; |
af65c804 | 194 | |
d50a1907 | 195 | if (pm_runtime_suspended(dev) || !drm_dev) |
af65c804 SP |
196 | return 0; |
197 | ||
0a51897b | 198 | private = drm_dev->dev_private; |
6e8edf8a MS |
199 | drm_atomic_helper_resume(drm_dev, private->suspend_state); |
200 | exynos_drm_fbdev_resume(drm_dev); | |
201 | drm_kms_helper_poll_enable(drm_dev); | |
082ca313 AH |
202 | |
203 | return 0; | |
af65c804 SP |
204 | } |
205 | #endif | |
206 | ||
af65c804 | 207 | static const struct dev_pm_ops exynos_drm_pm_ops = { |
082ca313 | 208 | SET_SYSTEM_SLEEP_PM_OPS(exynos_drm_suspend, exynos_drm_resume) |
af65c804 SP |
209 | }; |
210 | ||
86650408 AH |
211 | /* forward declaration */ |
212 | static struct platform_driver exynos_drm_platform_driver; | |
f37cd5e8 | 213 | |
a5fb26cd MS |
214 | struct exynos_drm_driver_info { |
215 | struct platform_driver *driver; | |
216 | unsigned int flags; | |
217 | }; | |
218 | ||
219 | #define DRM_COMPONENT_DRIVER BIT(0) /* supports component framework */ | |
220 | #define DRM_VIRTUAL_DEVICE BIT(1) /* create virtual platform device */ | |
f43c3596 | 221 | #define DRM_DMA_DEVICE BIT(2) /* can be used for dma allocations */ |
a5fb26cd MS |
222 | |
223 | #define DRV_PTR(drv, cond) (IS_ENABLED(cond) ? &drv : NULL) | |
224 | ||
86650408 AH |
225 | /* |
226 | * Connector drivers should not be placed before associated crtc drivers, | |
227 | * because connector requires pipe number of its crtc during initialization. | |
228 | */ | |
a5fb26cd MS |
229 | static struct exynos_drm_driver_info exynos_drm_drivers[] = { |
230 | { | |
231 | DRV_PTR(fimd_driver, CONFIG_DRM_EXYNOS_FIMD), | |
f43c3596 | 232 | DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE |
a5fb26cd MS |
233 | }, { |
234 | DRV_PTR(exynos5433_decon_driver, CONFIG_DRM_EXYNOS5433_DECON), | |
f43c3596 | 235 | DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE |
a5fb26cd MS |
236 | }, { |
237 | DRV_PTR(decon_driver, CONFIG_DRM_EXYNOS7_DECON), | |
f43c3596 | 238 | DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE |
a5fb26cd MS |
239 | }, { |
240 | DRV_PTR(mixer_driver, CONFIG_DRM_EXYNOS_MIXER), | |
f43c3596 | 241 | DRM_COMPONENT_DRIVER | DRM_DMA_DEVICE |
a5fb26cd MS |
242 | }, { |
243 | DRV_PTR(mic_driver, CONFIG_DRM_EXYNOS_MIC), | |
244 | DRM_COMPONENT_DRIVER | |
245 | }, { | |
246 | DRV_PTR(dp_driver, CONFIG_DRM_EXYNOS_DP), | |
247 | DRM_COMPONENT_DRIVER | |
248 | }, { | |
249 | DRV_PTR(dsi_driver, CONFIG_DRM_EXYNOS_DSI), | |
250 | DRM_COMPONENT_DRIVER | |
251 | }, { | |
252 | DRV_PTR(hdmi_driver, CONFIG_DRM_EXYNOS_HDMI), | |
253 | DRM_COMPONENT_DRIVER | |
254 | }, { | |
255 | DRV_PTR(vidi_driver, CONFIG_DRM_EXYNOS_VIDI), | |
256 | DRM_COMPONENT_DRIVER | DRM_VIRTUAL_DEVICE | |
257 | }, { | |
258 | DRV_PTR(g2d_driver, CONFIG_DRM_EXYNOS_G2D), | |
259 | }, { | |
260 | DRV_PTR(fimc_driver, CONFIG_DRM_EXYNOS_FIMC), | |
261 | }, { | |
262 | DRV_PTR(rotator_driver, CONFIG_DRM_EXYNOS_ROTATOR), | |
263 | }, { | |
264 | DRV_PTR(gsc_driver, CONFIG_DRM_EXYNOS_GSC), | |
265 | }, { | |
266 | DRV_PTR(ipp_driver, CONFIG_DRM_EXYNOS_IPP), | |
267 | DRM_VIRTUAL_DEVICE | |
268 | }, { | |
269 | &exynos_drm_platform_driver, | |
270 | DRM_VIRTUAL_DEVICE | |
271 | } | |
86650408 | 272 | }; |
f37cd5e8 | 273 | |
53c5558d | 274 | static int compare_dev(struct device *dev, void *data) |
f37cd5e8 ID |
275 | { |
276 | return dev == (struct device *)data; | |
277 | } | |
278 | ||
53c5558d | 279 | static struct component_match *exynos_drm_match_add(struct device *dev) |
f37cd5e8 | 280 | { |
53c5558d | 281 | struct component_match *match = NULL; |
86650408 | 282 | int i; |
f37cd5e8 | 283 | |
a5fb26cd MS |
284 | for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) { |
285 | struct exynos_drm_driver_info *info = &exynos_drm_drivers[i]; | |
86650408 | 286 | struct device *p = NULL, *d; |
f7c2f36f | 287 | |
a5fb26cd MS |
288 | if (!info->driver || !(info->flags & DRM_COMPONENT_DRIVER)) |
289 | continue; | |
290 | ||
291 | while ((d = bus_find_device(&platform_bus_type, p, | |
292 | &info->driver->driver, | |
86650408 AH |
293 | (void *)platform_bus_type.match))) { |
294 | put_device(p); | |
295 | component_match_add(dev, &match, compare_dev, d); | |
296 | p = d; | |
df5225bc | 297 | } |
86650408 | 298 | put_device(p); |
f37cd5e8 ID |
299 | } |
300 | ||
86650408 | 301 | return match ?: ERR_PTR(-ENODEV); |
f37cd5e8 ID |
302 | } |
303 | ||
304 | static int exynos_drm_bind(struct device *dev) | |
305 | { | |
896bbc3e LP |
306 | struct exynos_drm_private *private; |
307 | struct drm_encoder *encoder; | |
308 | struct drm_device *drm; | |
309 | unsigned int clone_mask; | |
310 | int cnt, ret; | |
311 | ||
312 | drm = drm_dev_alloc(&exynos_drm_driver, dev); | |
313 | if (IS_ERR(drm)) | |
314 | return PTR_ERR(drm); | |
315 | ||
316 | private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL); | |
317 | if (!private) { | |
318 | ret = -ENOMEM; | |
319 | goto err_free_drm; | |
320 | } | |
321 | ||
322 | init_waitqueue_head(&private->wait); | |
323 | spin_lock_init(&private->lock); | |
324 | ||
325 | dev_set_drvdata(dev, drm); | |
326 | drm->dev_private = (void *)private; | |
327 | ||
328 | /* the first real CRTC device is used for all dma mapping operations */ | |
329 | private->dma_dev = exynos_drm_get_dma_device(); | |
330 | if (!private->dma_dev) { | |
331 | DRM_ERROR("no device found for DMA mapping operations.\n"); | |
332 | ret = -ENODEV; | |
333 | goto err_free_private; | |
334 | } | |
335 | DRM_INFO("Exynos DRM: using %s device for DMA mapping operations\n", | |
336 | dev_name(private->dma_dev)); | |
337 | ||
338 | /* create common IOMMU mapping for all devices attached to Exynos DRM */ | |
339 | ret = drm_create_iommu_mapping(drm); | |
340 | if (ret < 0) { | |
341 | DRM_ERROR("failed to create iommu mapping.\n"); | |
342 | goto err_free_private; | |
343 | } | |
344 | ||
345 | drm_mode_config_init(drm); | |
346 | ||
347 | exynos_drm_mode_config_init(drm); | |
348 | ||
349 | /* setup possible_clones. */ | |
350 | cnt = 0; | |
351 | clone_mask = 0; | |
352 | list_for_each_entry(encoder, &drm->mode_config.encoder_list, head) | |
353 | clone_mask |= (1 << (cnt++)); | |
354 | ||
355 | list_for_each_entry(encoder, &drm->mode_config.encoder_list, head) | |
356 | encoder->possible_clones = clone_mask; | |
357 | ||
358 | /* Try to bind all sub drivers. */ | |
359 | ret = component_bind_all(drm->dev, drm); | |
360 | if (ret) | |
361 | goto err_mode_config_cleanup; | |
362 | ||
363 | ret = drm_vblank_init(drm, drm->mode_config.num_crtc); | |
364 | if (ret) | |
365 | goto err_unbind_all; | |
366 | ||
367 | /* Probe non kms sub drivers and virtual display driver. */ | |
368 | ret = exynos_drm_device_subdrv_probe(drm); | |
369 | if (ret) | |
991dca01 | 370 | goto err_unbind_all; |
896bbc3e LP |
371 | |
372 | drm_mode_config_reset(drm); | |
373 | ||
374 | /* | |
375 | * enable drm irq mode. | |
376 | * - with irq_enabled = true, we can use the vblank feature. | |
377 | * | |
378 | * P.S. note that we wouldn't use drm irq handler but | |
379 | * just specific driver own one instead because | |
380 | * drm framework supports only one irq handler. | |
381 | */ | |
382 | drm->irq_enabled = true; | |
383 | ||
384 | /* init kms poll for handling hpd */ | |
385 | drm_kms_helper_poll_init(drm); | |
386 | ||
812fc6f2 TR |
387 | ret = exynos_drm_fbdev_init(drm); |
388 | if (ret) | |
389 | goto err_cleanup_poll; | |
896bbc3e LP |
390 | |
391 | /* register the DRM device */ | |
392 | ret = drm_dev_register(drm, 0); | |
393 | if (ret < 0) | |
394 | goto err_cleanup_fbdev; | |
395 | ||
396 | return 0; | |
397 | ||
398 | err_cleanup_fbdev: | |
399 | exynos_drm_fbdev_fini(drm); | |
812fc6f2 | 400 | err_cleanup_poll: |
896bbc3e LP |
401 | drm_kms_helper_poll_fini(drm); |
402 | exynos_drm_device_subdrv_remove(drm); | |
896bbc3e LP |
403 | err_unbind_all: |
404 | component_unbind_all(drm->dev, drm); | |
405 | err_mode_config_cleanup: | |
406 | drm_mode_config_cleanup(drm); | |
407 | drm_release_iommu_mapping(drm); | |
408 | err_free_private: | |
409 | kfree(private); | |
410 | err_free_drm: | |
411 | drm_dev_unref(drm); | |
412 | ||
413 | return ret; | |
f37cd5e8 ID |
414 | } |
415 | ||
416 | static void exynos_drm_unbind(struct device *dev) | |
417 | { | |
896bbc3e LP |
418 | struct drm_device *drm = dev_get_drvdata(dev); |
419 | ||
420 | drm_dev_unregister(drm); | |
421 | ||
422 | exynos_drm_device_subdrv_remove(drm); | |
423 | ||
424 | exynos_drm_fbdev_fini(drm); | |
425 | drm_kms_helper_poll_fini(drm); | |
426 | ||
427 | component_unbind_all(drm->dev, drm); | |
428 | drm_mode_config_cleanup(drm); | |
429 | drm_release_iommu_mapping(drm); | |
430 | ||
431 | kfree(drm->dev_private); | |
432 | drm->dev_private = NULL; | |
238604ca | 433 | dev_set_drvdata(dev, NULL); |
896bbc3e LP |
434 | |
435 | drm_dev_unref(drm); | |
f37cd5e8 ID |
436 | } |
437 | ||
438 | static const struct component_master_ops exynos_drm_ops = { | |
f37cd5e8 ID |
439 | .bind = exynos_drm_bind, |
440 | .unbind = exynos_drm_unbind, | |
1c248b7d ID |
441 | }; |
442 | ||
417133e4 AH |
443 | static int exynos_drm_platform_probe(struct platform_device *pdev) |
444 | { | |
445 | struct component_match *match; | |
446 | ||
447 | pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); | |
417133e4 AH |
448 | |
449 | match = exynos_drm_match_add(&pdev->dev); | |
450 | if (IS_ERR(match)) | |
451 | return PTR_ERR(match); | |
452 | ||
453 | return component_master_add_with_match(&pdev->dev, &exynos_drm_ops, | |
454 | match); | |
455 | } | |
456 | ||
457 | static int exynos_drm_platform_remove(struct platform_device *pdev) | |
458 | { | |
459 | component_master_del(&pdev->dev, &exynos_drm_ops); | |
460 | return 0; | |
461 | } | |
462 | ||
463 | static struct platform_driver exynos_drm_platform_driver = { | |
464 | .probe = exynos_drm_platform_probe, | |
465 | .remove = exynos_drm_platform_remove, | |
466 | .driver = { | |
467 | .name = "exynos-drm", | |
468 | .pm = &exynos_drm_pm_ops, | |
469 | }, | |
470 | }; | |
471 | ||
f43c3596 MS |
472 | static struct device *exynos_drm_get_dma_device(void) |
473 | { | |
474 | int i; | |
475 | ||
476 | for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) { | |
477 | struct exynos_drm_driver_info *info = &exynos_drm_drivers[i]; | |
478 | struct device *dev; | |
479 | ||
480 | if (!info->driver || !(info->flags & DRM_DMA_DEVICE)) | |
481 | continue; | |
482 | ||
483 | while ((dev = bus_find_device(&platform_bus_type, NULL, | |
484 | &info->driver->driver, | |
485 | (void *)platform_bus_type.match))) { | |
486 | put_device(dev); | |
487 | return dev; | |
488 | } | |
489 | } | |
490 | return NULL; | |
491 | } | |
492 | ||
417133e4 | 493 | static void exynos_drm_unregister_devices(void) |
72390677 | 494 | { |
a5fb26cd MS |
495 | int i; |
496 | ||
497 | for (i = ARRAY_SIZE(exynos_drm_drivers) - 1; i >= 0; --i) { | |
498 | struct exynos_drm_driver_info *info = &exynos_drm_drivers[i]; | |
499 | struct device *dev; | |
25928a39 | 500 | |
a5fb26cd MS |
501 | if (!info->driver || !(info->flags & DRM_VIRTUAL_DEVICE)) |
502 | continue; | |
503 | ||
504 | while ((dev = bus_find_device(&platform_bus_type, NULL, | |
505 | &info->driver->driver, | |
506 | (void *)platform_bus_type.match))) { | |
507 | put_device(dev); | |
508 | platform_device_unregister(to_platform_device(dev)); | |
509 | } | |
417133e4 AH |
510 | } |
511 | } | |
7eb8f069 | 512 | |
417133e4 AH |
513 | static int exynos_drm_register_devices(void) |
514 | { | |
a5fb26cd | 515 | struct platform_device *pdev; |
417133e4 AH |
516 | int i; |
517 | ||
a5fb26cd MS |
518 | for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) { |
519 | struct exynos_drm_driver_info *info = &exynos_drm_drivers[i]; | |
417133e4 | 520 | |
a5fb26cd | 521 | if (!info->driver || !(info->flags & DRM_VIRTUAL_DEVICE)) |
417133e4 | 522 | continue; |
417133e4 | 523 | |
a5fb26cd MS |
524 | pdev = platform_device_register_simple( |
525 | info->driver->driver.name, -1, NULL, 0); | |
526 | if (IS_ERR(pdev)) | |
527 | goto fail; | |
72390677 | 528 | } |
f37cd5e8 | 529 | |
417133e4 | 530 | return 0; |
a5fb26cd MS |
531 | fail: |
532 | exynos_drm_unregister_devices(); | |
533 | return PTR_ERR(pdev); | |
1c248b7d ID |
534 | } |
535 | ||
a5fb26cd | 536 | static void exynos_drm_unregister_drivers(void) |
1c248b7d | 537 | { |
a5fb26cd | 538 | int i; |
417133e4 | 539 | |
a5fb26cd MS |
540 | for (i = ARRAY_SIZE(exynos_drm_drivers) - 1; i >= 0; --i) { |
541 | struct exynos_drm_driver_info *info = &exynos_drm_drivers[i]; | |
417133e4 | 542 | |
a5fb26cd | 543 | if (!info->driver) |
417133e4 AH |
544 | continue; |
545 | ||
a5fb26cd | 546 | platform_driver_unregister(info->driver); |
417133e4 | 547 | } |
f37cd5e8 ID |
548 | } |
549 | ||
a5fb26cd | 550 | static int exynos_drm_register_drivers(void) |
417133e4 | 551 | { |
a5fb26cd | 552 | int i, ret; |
417133e4 | 553 | |
a5fb26cd MS |
554 | for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) { |
555 | struct exynos_drm_driver_info *info = &exynos_drm_drivers[i]; | |
417133e4 | 556 | |
a5fb26cd MS |
557 | if (!info->driver) |
558 | continue; | |
417133e4 | 559 | |
a5fb26cd MS |
560 | ret = platform_driver_register(info->driver); |
561 | if (ret) | |
562 | goto fail; | |
563 | } | |
564 | return 0; | |
565 | fail: | |
566 | exynos_drm_unregister_drivers(); | |
567 | return ret; | |
417133e4 AH |
568 | } |
569 | ||
f37cd5e8 ID |
570 | static int exynos_drm_init(void) |
571 | { | |
e3b9e460 | 572 | int ret; |
f37cd5e8 | 573 | |
417133e4 AH |
574 | ret = exynos_drm_register_devices(); |
575 | if (ret) | |
576 | return ret; | |
820687be | 577 | |
a5fb26cd | 578 | ret = exynos_drm_register_drivers(); |
417133e4 AH |
579 | if (ret) |
580 | goto err_unregister_pdevs; | |
f37cd5e8 | 581 | |
f37cd5e8 ID |
582 | return 0; |
583 | ||
417133e4 AH |
584 | err_unregister_pdevs: |
585 | exynos_drm_unregister_devices(); | |
f37cd5e8 ID |
586 | |
587 | return ret; | |
588 | } | |
589 | ||
590 | static void exynos_drm_exit(void) | |
591 | { | |
a5fb26cd | 592 | exynos_drm_unregister_drivers(); |
417133e4 | 593 | exynos_drm_unregister_devices(); |
1c248b7d ID |
594 | } |
595 | ||
596 | module_init(exynos_drm_init); | |
597 | module_exit(exynos_drm_exit); | |
598 | ||
599 | MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>"); | |
600 | MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>"); | |
601 | MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>"); | |
602 | MODULE_DESCRIPTION("Samsung SoC DRM Driver"); | |
603 | MODULE_LICENSE("GPL"); |