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1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
4 * Authors:
5 * Inki Dae <inki.dae@samsung.com>
6 * Joonyoung Shim <jy0922.shim@samsung.com>
7 * Seung-Woo Kim <sw0312.kim@samsung.com>
8 */
9
10#include <linux/component.h>
11#include <linux/dma-mapping.h>
12#include <linux/platform_device.h>
13#include <linux/pm_runtime.h>
14#include <linux/uaccess.h>
15
16#include <drm/drm_atomic.h>
17#include <drm/drm_atomic_helper.h>
18#include <drm/drm_client_setup.h>
19#include <drm/drm_drv.h>
20#include <drm/drm_file.h>
21#include <drm/drm_fourcc.h>
22#include <drm/drm_ioctl.h>
23#include <drm/drm_probe_helper.h>
24#include <drm/drm_vblank.h>
25#include <drm/exynos_drm.h>
26
27#include "exynos_drm_drv.h"
28#include "exynos_drm_fb.h"
29#include "exynos_drm_fbdev.h"
30#include "exynos_drm_g2d.h"
31#include "exynos_drm_gem.h"
32#include "exynos_drm_ipp.h"
33#include "exynos_drm_plane.h"
34#include "exynos_drm_vidi.h"
35
36#define DRIVER_NAME "exynos"
37#define DRIVER_DESC "Samsung SoC DRM"
38#define DRIVER_DATE "20180330"
39
40/*
41 * Interface history:
42 *
43 * 1.0 - Original version
44 * 1.1 - Upgrade IPP driver to version 2.0
45 */
46#define DRIVER_MAJOR 1
47#define DRIVER_MINOR 1
48
49static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
50{
51 struct drm_exynos_file_private *file_priv;
52 int ret;
53
54 file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
55 if (!file_priv)
56 return -ENOMEM;
57
58 file->driver_priv = file_priv;
59 ret = g2d_open(dev, file);
60 if (ret)
61 goto err_file_priv_free;
62
63 return ret;
64
65err_file_priv_free:
66 kfree(file_priv);
67 file->driver_priv = NULL;
68 return ret;
69}
70
71static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
72{
73 g2d_close(dev, file);
74 kfree(file->driver_priv);
75 file->driver_priv = NULL;
76}
77
78static const struct drm_ioctl_desc exynos_ioctls[] = {
79 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
80 DRM_RENDER_ALLOW),
81 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP, exynos_drm_gem_map_ioctl,
82 DRM_RENDER_ALLOW),
83 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET, exynos_drm_gem_get_ioctl,
84 DRM_RENDER_ALLOW),
85 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION, vidi_connection_ioctl,
86 DRM_AUTH),
87 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER, exynos_g2d_get_ver_ioctl,
88 DRM_RENDER_ALLOW),
89 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST, exynos_g2d_set_cmdlist_ioctl,
90 DRM_RENDER_ALLOW),
91 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC, exynos_g2d_exec_ioctl,
92 DRM_RENDER_ALLOW),
93 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_RESOURCES,
94 exynos_drm_ipp_get_res_ioctl,
95 DRM_RENDER_ALLOW),
96 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_CAPS, exynos_drm_ipp_get_caps_ioctl,
97 DRM_RENDER_ALLOW),
98 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_LIMITS,
99 exynos_drm_ipp_get_limits_ioctl,
100 DRM_RENDER_ALLOW),
101 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_COMMIT, exynos_drm_ipp_commit_ioctl,
102 DRM_RENDER_ALLOW),
103};
104
105DEFINE_DRM_GEM_FOPS(exynos_drm_driver_fops);
106
107static const struct drm_driver exynos_drm_driver = {
108 .driver_features = DRIVER_MODESET | DRIVER_GEM
109 | DRIVER_ATOMIC | DRIVER_RENDER,
110 .open = exynos_drm_open,
111 .postclose = exynos_drm_postclose,
112 .dumb_create = exynos_drm_gem_dumb_create,
113 .gem_prime_import = exynos_drm_gem_prime_import,
114 .gem_prime_import_sg_table = exynos_drm_gem_prime_import_sg_table,
115 EXYNOS_DRM_FBDEV_DRIVER_OPS,
116 .ioctls = exynos_ioctls,
117 .num_ioctls = ARRAY_SIZE(exynos_ioctls),
118 .fops = &exynos_drm_driver_fops,
119 .name = DRIVER_NAME,
120 .desc = DRIVER_DESC,
121 .date = DRIVER_DATE,
122 .major = DRIVER_MAJOR,
123 .minor = DRIVER_MINOR,
124};
125
126static int exynos_drm_suspend(struct device *dev)
127{
128 struct drm_device *drm_dev = dev_get_drvdata(dev);
129
130 return drm_mode_config_helper_suspend(drm_dev);
131}
132
133static void exynos_drm_resume(struct device *dev)
134{
135 struct drm_device *drm_dev = dev_get_drvdata(dev);
136
137 drm_mode_config_helper_resume(drm_dev);
138}
139
140static const struct dev_pm_ops exynos_drm_pm_ops = {
141 .prepare = exynos_drm_suspend,
142 .complete = exynos_drm_resume,
143};
144
145/* forward declaration */
146static struct platform_driver exynos_drm_platform_driver;
147
148struct exynos_drm_driver_info {
149 struct platform_driver *driver;
150 unsigned int flags;
151};
152
153#define DRM_COMPONENT_DRIVER BIT(0) /* supports component framework */
154#define DRM_VIRTUAL_DEVICE BIT(1) /* create virtual platform device */
155#define DRM_FIMC_DEVICE BIT(2) /* devices shared with V4L2 subsystem */
156
157#define DRV_PTR(drv, cond) (IS_ENABLED(cond) ? &drv : NULL)
158
159/*
160 * Connector drivers should not be placed before associated crtc drivers,
161 * because connector requires pipe number of its crtc during initialization.
162 */
163static struct exynos_drm_driver_info exynos_drm_drivers[] = {
164 {
165 DRV_PTR(fimd_driver, CONFIG_DRM_EXYNOS_FIMD),
166 DRM_COMPONENT_DRIVER
167 }, {
168 DRV_PTR(exynos5433_decon_driver, CONFIG_DRM_EXYNOS5433_DECON),
169 DRM_COMPONENT_DRIVER
170 }, {
171 DRV_PTR(decon_driver, CONFIG_DRM_EXYNOS7_DECON),
172 DRM_COMPONENT_DRIVER
173 }, {
174 DRV_PTR(mixer_driver, CONFIG_DRM_EXYNOS_MIXER),
175 DRM_COMPONENT_DRIVER
176 }, {
177 DRV_PTR(dp_driver, CONFIG_DRM_EXYNOS_DP),
178 DRM_COMPONENT_DRIVER
179 }, {
180 DRV_PTR(dsi_driver, CONFIG_DRM_EXYNOS_DSI),
181 DRM_COMPONENT_DRIVER
182 }, {
183 DRV_PTR(mic_driver, CONFIG_DRM_EXYNOS_MIC),
184 DRM_COMPONENT_DRIVER
185 }, {
186 DRV_PTR(hdmi_driver, CONFIG_DRM_EXYNOS_HDMI),
187 DRM_COMPONENT_DRIVER
188 }, {
189 DRV_PTR(vidi_driver, CONFIG_DRM_EXYNOS_VIDI),
190 DRM_COMPONENT_DRIVER | DRM_VIRTUAL_DEVICE
191 }, {
192 DRV_PTR(g2d_driver, CONFIG_DRM_EXYNOS_G2D),
193 DRM_COMPONENT_DRIVER
194 }, {
195 DRV_PTR(fimc_driver, CONFIG_DRM_EXYNOS_FIMC),
196 DRM_COMPONENT_DRIVER | DRM_FIMC_DEVICE,
197 }, {
198 DRV_PTR(rotator_driver, CONFIG_DRM_EXYNOS_ROTATOR),
199 DRM_COMPONENT_DRIVER
200 }, {
201 DRV_PTR(scaler_driver, CONFIG_DRM_EXYNOS_SCALER),
202 DRM_COMPONENT_DRIVER
203 }, {
204 DRV_PTR(gsc_driver, CONFIG_DRM_EXYNOS_GSC),
205 DRM_COMPONENT_DRIVER
206 }, {
207 &exynos_drm_platform_driver,
208 DRM_VIRTUAL_DEVICE
209 }
210};
211
212static struct component_match *exynos_drm_match_add(struct device *dev)
213{
214 struct component_match *match = NULL;
215 int i;
216
217 for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
218 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
219 struct device *p = NULL, *d;
220
221 if (!info->driver || !(info->flags & DRM_COMPONENT_DRIVER))
222 continue;
223
224 while ((d = platform_find_device_by_driver(p, &info->driver->driver))) {
225 put_device(p);
226
227 if (!(info->flags & DRM_FIMC_DEVICE) ||
228 exynos_drm_check_fimc_device(d) == 0)
229 component_match_add(dev, &match, component_compare_dev, d);
230 p = d;
231 }
232 put_device(p);
233 }
234
235 return match ?: ERR_PTR(-ENODEV);
236}
237
238static int exynos_drm_bind(struct device *dev)
239{
240 struct exynos_drm_private *private;
241 struct drm_encoder *encoder;
242 struct drm_device *drm;
243 unsigned int clone_mask;
244 int ret;
245
246 drm = drm_dev_alloc(&exynos_drm_driver, dev);
247 if (IS_ERR(drm))
248 return PTR_ERR(drm);
249
250 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
251 if (!private) {
252 ret = -ENOMEM;
253 goto err_free_drm;
254 }
255
256 init_waitqueue_head(&private->wait);
257 spin_lock_init(&private->lock);
258
259 dev_set_drvdata(dev, drm);
260 drm->dev_private = (void *)private;
261
262 drm_mode_config_init(drm);
263
264 exynos_drm_mode_config_init(drm);
265
266 /* setup possible_clones. */
267 clone_mask = 0;
268 list_for_each_entry(encoder, &drm->mode_config.encoder_list, head)
269 clone_mask |= drm_encoder_mask(encoder);
270
271 list_for_each_entry(encoder, &drm->mode_config.encoder_list, head)
272 encoder->possible_clones = clone_mask;
273
274 /* Try to bind all sub drivers. */
275 ret = component_bind_all(drm->dev, drm);
276 if (ret)
277 goto err_mode_config_cleanup;
278
279 ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
280 if (ret)
281 goto err_unbind_all;
282
283 drm_mode_config_reset(drm);
284
285 /* init kms poll for handling hpd */
286 drm_kms_helper_poll_init(drm);
287
288 /* register the DRM device */
289 ret = drm_dev_register(drm, 0);
290 if (ret < 0)
291 goto err_cleanup_poll;
292
293 drm_client_setup(drm, NULL);
294
295 return 0;
296
297err_cleanup_poll:
298 drm_kms_helper_poll_fini(drm);
299err_unbind_all:
300 component_unbind_all(drm->dev, drm);
301err_mode_config_cleanup:
302 drm_mode_config_cleanup(drm);
303 exynos_drm_cleanup_dma(drm);
304 kfree(private);
305 dev_set_drvdata(dev, NULL);
306err_free_drm:
307 drm_dev_put(drm);
308
309 return ret;
310}
311
312static void exynos_drm_unbind(struct device *dev)
313{
314 struct drm_device *drm = dev_get_drvdata(dev);
315
316 drm_dev_unregister(drm);
317
318 drm_kms_helper_poll_fini(drm);
319 drm_atomic_helper_shutdown(drm);
320
321 component_unbind_all(drm->dev, drm);
322 drm_mode_config_cleanup(drm);
323 exynos_drm_cleanup_dma(drm);
324
325 kfree(drm->dev_private);
326 drm->dev_private = NULL;
327 dev_set_drvdata(dev, NULL);
328
329 drm_dev_put(drm);
330}
331
332static const struct component_master_ops exynos_drm_ops = {
333 .bind = exynos_drm_bind,
334 .unbind = exynos_drm_unbind,
335};
336
337static int exynos_drm_platform_probe(struct platform_device *pdev)
338{
339 struct component_match *match;
340
341 pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
342
343 match = exynos_drm_match_add(&pdev->dev);
344 if (IS_ERR(match))
345 return PTR_ERR(match);
346
347 return component_master_add_with_match(&pdev->dev, &exynos_drm_ops,
348 match);
349}
350
351static void exynos_drm_platform_remove(struct platform_device *pdev)
352{
353 component_master_del(&pdev->dev, &exynos_drm_ops);
354}
355
356static void exynos_drm_platform_shutdown(struct platform_device *pdev)
357{
358 struct drm_device *drm = platform_get_drvdata(pdev);
359
360 if (drm)
361 drm_atomic_helper_shutdown(drm);
362}
363
364static struct platform_driver exynos_drm_platform_driver = {
365 .probe = exynos_drm_platform_probe,
366 .remove = exynos_drm_platform_remove,
367 .shutdown = exynos_drm_platform_shutdown,
368 .driver = {
369 .name = "exynos-drm",
370 .pm = &exynos_drm_pm_ops,
371 },
372};
373
374static void exynos_drm_unregister_devices(void)
375{
376 int i;
377
378 for (i = ARRAY_SIZE(exynos_drm_drivers) - 1; i >= 0; --i) {
379 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
380 struct device *dev;
381
382 if (!info->driver || !(info->flags & DRM_VIRTUAL_DEVICE))
383 continue;
384
385 while ((dev = platform_find_device_by_driver(NULL,
386 &info->driver->driver))) {
387 put_device(dev);
388 platform_device_unregister(to_platform_device(dev));
389 }
390 }
391}
392
393static int exynos_drm_register_devices(void)
394{
395 struct platform_device *pdev;
396 int i;
397
398 for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
399 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
400
401 if (!info->driver || !(info->flags & DRM_VIRTUAL_DEVICE))
402 continue;
403
404 pdev = platform_device_register_simple(
405 info->driver->driver.name, -1, NULL, 0);
406 if (IS_ERR(pdev))
407 goto fail;
408 }
409
410 return 0;
411fail:
412 exynos_drm_unregister_devices();
413 return PTR_ERR(pdev);
414}
415
416static void exynos_drm_unregister_drivers(void)
417{
418 int i;
419
420 for (i = ARRAY_SIZE(exynos_drm_drivers) - 1; i >= 0; --i) {
421 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
422
423 if (!info->driver)
424 continue;
425
426 platform_driver_unregister(info->driver);
427 }
428}
429
430static int exynos_drm_register_drivers(void)
431{
432 int i, ret;
433
434 for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
435 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
436
437 if (!info->driver)
438 continue;
439
440 ret = platform_driver_register(info->driver);
441 if (ret)
442 goto fail;
443 }
444 return 0;
445fail:
446 exynos_drm_unregister_drivers();
447 return ret;
448}
449
450static int exynos_drm_init(void)
451{
452 int ret;
453
454 if (drm_firmware_drivers_only())
455 return -ENODEV;
456
457 ret = exynos_drm_register_devices();
458 if (ret)
459 return ret;
460
461 ret = exynos_drm_register_drivers();
462 if (ret)
463 goto err_unregister_pdevs;
464
465 return 0;
466
467err_unregister_pdevs:
468 exynos_drm_unregister_devices();
469
470 return ret;
471}
472
473static void exynos_drm_exit(void)
474{
475 exynos_drm_unregister_drivers();
476 exynos_drm_unregister_devices();
477}
478
479module_init(exynos_drm_init);
480module_exit(exynos_drm_exit);
481
482MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
483MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
484MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
485MODULE_DESCRIPTION("Samsung SoC DRM Driver");
486MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
4 * Authors:
5 * Inki Dae <inki.dae@samsung.com>
6 * Joonyoung Shim <jy0922.shim@samsung.com>
7 * Seung-Woo Kim <sw0312.kim@samsung.com>
8 */
9
10#include <linux/component.h>
11#include <linux/dma-mapping.h>
12#include <linux/platform_device.h>
13#include <linux/pm_runtime.h>
14#include <linux/uaccess.h>
15
16#include <drm/drm_atomic.h>
17#include <drm/drm_atomic_helper.h>
18#include <drm/drm_drv.h>
19#include <drm/drm_file.h>
20#include <drm/drm_fourcc.h>
21#include <drm/drm_ioctl.h>
22#include <drm/drm_probe_helper.h>
23#include <drm/drm_vblank.h>
24#include <drm/exynos_drm.h>
25
26#include "exynos_drm_drv.h"
27#include "exynos_drm_fb.h"
28#include "exynos_drm_fbdev.h"
29#include "exynos_drm_g2d.h"
30#include "exynos_drm_gem.h"
31#include "exynos_drm_ipp.h"
32#include "exynos_drm_plane.h"
33#include "exynos_drm_vidi.h"
34
35#define DRIVER_NAME "exynos"
36#define DRIVER_DESC "Samsung SoC DRM"
37#define DRIVER_DATE "20180330"
38
39/*
40 * Interface history:
41 *
42 * 1.0 - Original version
43 * 1.1 - Upgrade IPP driver to version 2.0
44 */
45#define DRIVER_MAJOR 1
46#define DRIVER_MINOR 1
47
48static int exynos_drm_open(struct drm_device *dev, struct drm_file *file)
49{
50 struct drm_exynos_file_private *file_priv;
51 int ret;
52
53 file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
54 if (!file_priv)
55 return -ENOMEM;
56
57 file->driver_priv = file_priv;
58 ret = g2d_open(dev, file);
59 if (ret)
60 goto err_file_priv_free;
61
62 return ret;
63
64err_file_priv_free:
65 kfree(file_priv);
66 file->driver_priv = NULL;
67 return ret;
68}
69
70static void exynos_drm_postclose(struct drm_device *dev, struct drm_file *file)
71{
72 g2d_close(dev, file);
73 kfree(file->driver_priv);
74 file->driver_priv = NULL;
75}
76
77static const struct drm_ioctl_desc exynos_ioctls[] = {
78 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_CREATE, exynos_drm_gem_create_ioctl,
79 DRM_RENDER_ALLOW),
80 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MAP, exynos_drm_gem_map_ioctl,
81 DRM_RENDER_ALLOW),
82 DRM_IOCTL_DEF_DRV(EXYNOS_GEM_GET, exynos_drm_gem_get_ioctl,
83 DRM_RENDER_ALLOW),
84 DRM_IOCTL_DEF_DRV(EXYNOS_VIDI_CONNECTION, vidi_connection_ioctl,
85 DRM_AUTH),
86 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_GET_VER, exynos_g2d_get_ver_ioctl,
87 DRM_RENDER_ALLOW),
88 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_SET_CMDLIST, exynos_g2d_set_cmdlist_ioctl,
89 DRM_RENDER_ALLOW),
90 DRM_IOCTL_DEF_DRV(EXYNOS_G2D_EXEC, exynos_g2d_exec_ioctl,
91 DRM_RENDER_ALLOW),
92 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_RESOURCES,
93 exynos_drm_ipp_get_res_ioctl,
94 DRM_RENDER_ALLOW),
95 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_CAPS, exynos_drm_ipp_get_caps_ioctl,
96 DRM_RENDER_ALLOW),
97 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_GET_LIMITS,
98 exynos_drm_ipp_get_limits_ioctl,
99 DRM_RENDER_ALLOW),
100 DRM_IOCTL_DEF_DRV(EXYNOS_IPP_COMMIT, exynos_drm_ipp_commit_ioctl,
101 DRM_RENDER_ALLOW),
102};
103
104DEFINE_DRM_GEM_FOPS(exynos_drm_driver_fops);
105
106static const struct drm_driver exynos_drm_driver = {
107 .driver_features = DRIVER_MODESET | DRIVER_GEM
108 | DRIVER_ATOMIC | DRIVER_RENDER,
109 .open = exynos_drm_open,
110 .postclose = exynos_drm_postclose,
111 .dumb_create = exynos_drm_gem_dumb_create,
112 .gem_prime_import = exynos_drm_gem_prime_import,
113 .gem_prime_import_sg_table = exynos_drm_gem_prime_import_sg_table,
114 .ioctls = exynos_ioctls,
115 .num_ioctls = ARRAY_SIZE(exynos_ioctls),
116 .fops = &exynos_drm_driver_fops,
117 .name = DRIVER_NAME,
118 .desc = DRIVER_DESC,
119 .date = DRIVER_DATE,
120 .major = DRIVER_MAJOR,
121 .minor = DRIVER_MINOR,
122};
123
124static int exynos_drm_suspend(struct device *dev)
125{
126 struct drm_device *drm_dev = dev_get_drvdata(dev);
127
128 return drm_mode_config_helper_suspend(drm_dev);
129}
130
131static void exynos_drm_resume(struct device *dev)
132{
133 struct drm_device *drm_dev = dev_get_drvdata(dev);
134
135 drm_mode_config_helper_resume(drm_dev);
136}
137
138static const struct dev_pm_ops exynos_drm_pm_ops = {
139 .prepare = exynos_drm_suspend,
140 .complete = exynos_drm_resume,
141};
142
143/* forward declaration */
144static struct platform_driver exynos_drm_platform_driver;
145
146struct exynos_drm_driver_info {
147 struct platform_driver *driver;
148 unsigned int flags;
149};
150
151#define DRM_COMPONENT_DRIVER BIT(0) /* supports component framework */
152#define DRM_VIRTUAL_DEVICE BIT(1) /* create virtual platform device */
153#define DRM_FIMC_DEVICE BIT(2) /* devices shared with V4L2 subsystem */
154
155#define DRV_PTR(drv, cond) (IS_ENABLED(cond) ? &drv : NULL)
156
157/*
158 * Connector drivers should not be placed before associated crtc drivers,
159 * because connector requires pipe number of its crtc during initialization.
160 */
161static struct exynos_drm_driver_info exynos_drm_drivers[] = {
162 {
163 DRV_PTR(fimd_driver, CONFIG_DRM_EXYNOS_FIMD),
164 DRM_COMPONENT_DRIVER
165 }, {
166 DRV_PTR(exynos5433_decon_driver, CONFIG_DRM_EXYNOS5433_DECON),
167 DRM_COMPONENT_DRIVER
168 }, {
169 DRV_PTR(decon_driver, CONFIG_DRM_EXYNOS7_DECON),
170 DRM_COMPONENT_DRIVER
171 }, {
172 DRV_PTR(mixer_driver, CONFIG_DRM_EXYNOS_MIXER),
173 DRM_COMPONENT_DRIVER
174 }, {
175 DRV_PTR(dp_driver, CONFIG_DRM_EXYNOS_DP),
176 DRM_COMPONENT_DRIVER
177 }, {
178 DRV_PTR(dsi_driver, CONFIG_DRM_EXYNOS_DSI),
179 DRM_COMPONENT_DRIVER
180 }, {
181 DRV_PTR(mic_driver, CONFIG_DRM_EXYNOS_MIC),
182 DRM_COMPONENT_DRIVER
183 }, {
184 DRV_PTR(hdmi_driver, CONFIG_DRM_EXYNOS_HDMI),
185 DRM_COMPONENT_DRIVER
186 }, {
187 DRV_PTR(vidi_driver, CONFIG_DRM_EXYNOS_VIDI),
188 DRM_COMPONENT_DRIVER | DRM_VIRTUAL_DEVICE
189 }, {
190 DRV_PTR(g2d_driver, CONFIG_DRM_EXYNOS_G2D),
191 DRM_COMPONENT_DRIVER
192 }, {
193 DRV_PTR(fimc_driver, CONFIG_DRM_EXYNOS_FIMC),
194 DRM_COMPONENT_DRIVER | DRM_FIMC_DEVICE,
195 }, {
196 DRV_PTR(rotator_driver, CONFIG_DRM_EXYNOS_ROTATOR),
197 DRM_COMPONENT_DRIVER
198 }, {
199 DRV_PTR(scaler_driver, CONFIG_DRM_EXYNOS_SCALER),
200 DRM_COMPONENT_DRIVER
201 }, {
202 DRV_PTR(gsc_driver, CONFIG_DRM_EXYNOS_GSC),
203 DRM_COMPONENT_DRIVER
204 }, {
205 &exynos_drm_platform_driver,
206 DRM_VIRTUAL_DEVICE
207 }
208};
209
210static struct component_match *exynos_drm_match_add(struct device *dev)
211{
212 struct component_match *match = NULL;
213 int i;
214
215 for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
216 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
217 struct device *p = NULL, *d;
218
219 if (!info->driver || !(info->flags & DRM_COMPONENT_DRIVER))
220 continue;
221
222 while ((d = platform_find_device_by_driver(p, &info->driver->driver))) {
223 put_device(p);
224
225 if (!(info->flags & DRM_FIMC_DEVICE) ||
226 exynos_drm_check_fimc_device(d) == 0)
227 component_match_add(dev, &match, component_compare_dev, d);
228 p = d;
229 }
230 put_device(p);
231 }
232
233 return match ?: ERR_PTR(-ENODEV);
234}
235
236static int exynos_drm_bind(struct device *dev)
237{
238 struct exynos_drm_private *private;
239 struct drm_encoder *encoder;
240 struct drm_device *drm;
241 unsigned int clone_mask;
242 int ret;
243
244 drm = drm_dev_alloc(&exynos_drm_driver, dev);
245 if (IS_ERR(drm))
246 return PTR_ERR(drm);
247
248 private = kzalloc(sizeof(struct exynos_drm_private), GFP_KERNEL);
249 if (!private) {
250 ret = -ENOMEM;
251 goto err_free_drm;
252 }
253
254 init_waitqueue_head(&private->wait);
255 spin_lock_init(&private->lock);
256
257 dev_set_drvdata(dev, drm);
258 drm->dev_private = (void *)private;
259
260 drm_mode_config_init(drm);
261
262 exynos_drm_mode_config_init(drm);
263
264 /* setup possible_clones. */
265 clone_mask = 0;
266 list_for_each_entry(encoder, &drm->mode_config.encoder_list, head)
267 clone_mask |= drm_encoder_mask(encoder);
268
269 list_for_each_entry(encoder, &drm->mode_config.encoder_list, head)
270 encoder->possible_clones = clone_mask;
271
272 /* Try to bind all sub drivers. */
273 ret = component_bind_all(drm->dev, drm);
274 if (ret)
275 goto err_mode_config_cleanup;
276
277 ret = drm_vblank_init(drm, drm->mode_config.num_crtc);
278 if (ret)
279 goto err_unbind_all;
280
281 drm_mode_config_reset(drm);
282
283 /* init kms poll for handling hpd */
284 drm_kms_helper_poll_init(drm);
285
286 /* register the DRM device */
287 ret = drm_dev_register(drm, 0);
288 if (ret < 0)
289 goto err_cleanup_poll;
290
291 exynos_drm_fbdev_setup(drm);
292
293 return 0;
294
295err_cleanup_poll:
296 drm_kms_helper_poll_fini(drm);
297err_unbind_all:
298 component_unbind_all(drm->dev, drm);
299err_mode_config_cleanup:
300 drm_mode_config_cleanup(drm);
301 exynos_drm_cleanup_dma(drm);
302 kfree(private);
303 dev_set_drvdata(dev, NULL);
304err_free_drm:
305 drm_dev_put(drm);
306
307 return ret;
308}
309
310static void exynos_drm_unbind(struct device *dev)
311{
312 struct drm_device *drm = dev_get_drvdata(dev);
313
314 drm_dev_unregister(drm);
315
316 drm_kms_helper_poll_fini(drm);
317 drm_atomic_helper_shutdown(drm);
318
319 component_unbind_all(drm->dev, drm);
320 drm_mode_config_cleanup(drm);
321 exynos_drm_cleanup_dma(drm);
322
323 kfree(drm->dev_private);
324 drm->dev_private = NULL;
325 dev_set_drvdata(dev, NULL);
326
327 drm_dev_put(drm);
328}
329
330static const struct component_master_ops exynos_drm_ops = {
331 .bind = exynos_drm_bind,
332 .unbind = exynos_drm_unbind,
333};
334
335static int exynos_drm_platform_probe(struct platform_device *pdev)
336{
337 struct component_match *match;
338
339 pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
340
341 match = exynos_drm_match_add(&pdev->dev);
342 if (IS_ERR(match))
343 return PTR_ERR(match);
344
345 return component_master_add_with_match(&pdev->dev, &exynos_drm_ops,
346 match);
347}
348
349static void exynos_drm_platform_remove(struct platform_device *pdev)
350{
351 component_master_del(&pdev->dev, &exynos_drm_ops);
352}
353
354static void exynos_drm_platform_shutdown(struct platform_device *pdev)
355{
356 struct drm_device *drm = platform_get_drvdata(pdev);
357
358 if (drm)
359 drm_atomic_helper_shutdown(drm);
360}
361
362static struct platform_driver exynos_drm_platform_driver = {
363 .probe = exynos_drm_platform_probe,
364 .remove_new = exynos_drm_platform_remove,
365 .shutdown = exynos_drm_platform_shutdown,
366 .driver = {
367 .name = "exynos-drm",
368 .pm = &exynos_drm_pm_ops,
369 },
370};
371
372static void exynos_drm_unregister_devices(void)
373{
374 int i;
375
376 for (i = ARRAY_SIZE(exynos_drm_drivers) - 1; i >= 0; --i) {
377 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
378 struct device *dev;
379
380 if (!info->driver || !(info->flags & DRM_VIRTUAL_DEVICE))
381 continue;
382
383 while ((dev = platform_find_device_by_driver(NULL,
384 &info->driver->driver))) {
385 put_device(dev);
386 platform_device_unregister(to_platform_device(dev));
387 }
388 }
389}
390
391static int exynos_drm_register_devices(void)
392{
393 struct platform_device *pdev;
394 int i;
395
396 for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
397 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
398
399 if (!info->driver || !(info->flags & DRM_VIRTUAL_DEVICE))
400 continue;
401
402 pdev = platform_device_register_simple(
403 info->driver->driver.name, -1, NULL, 0);
404 if (IS_ERR(pdev))
405 goto fail;
406 }
407
408 return 0;
409fail:
410 exynos_drm_unregister_devices();
411 return PTR_ERR(pdev);
412}
413
414static void exynos_drm_unregister_drivers(void)
415{
416 int i;
417
418 for (i = ARRAY_SIZE(exynos_drm_drivers) - 1; i >= 0; --i) {
419 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
420
421 if (!info->driver)
422 continue;
423
424 platform_driver_unregister(info->driver);
425 }
426}
427
428static int exynos_drm_register_drivers(void)
429{
430 int i, ret;
431
432 for (i = 0; i < ARRAY_SIZE(exynos_drm_drivers); ++i) {
433 struct exynos_drm_driver_info *info = &exynos_drm_drivers[i];
434
435 if (!info->driver)
436 continue;
437
438 ret = platform_driver_register(info->driver);
439 if (ret)
440 goto fail;
441 }
442 return 0;
443fail:
444 exynos_drm_unregister_drivers();
445 return ret;
446}
447
448static int exynos_drm_init(void)
449{
450 int ret;
451
452 if (drm_firmware_drivers_only())
453 return -ENODEV;
454
455 ret = exynos_drm_register_devices();
456 if (ret)
457 return ret;
458
459 ret = exynos_drm_register_drivers();
460 if (ret)
461 goto err_unregister_pdevs;
462
463 return 0;
464
465err_unregister_pdevs:
466 exynos_drm_unregister_devices();
467
468 return ret;
469}
470
471static void exynos_drm_exit(void)
472{
473 exynos_drm_unregister_drivers();
474 exynos_drm_unregister_devices();
475}
476
477module_init(exynos_drm_init);
478module_exit(exynos_drm_exit);
479
480MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
481MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
482MODULE_AUTHOR("Seung-Woo Kim <sw0312.kim@samsung.com>");
483MODULE_DESCRIPTION("Samsung SoC DRM Driver");
484MODULE_LICENSE("GPL");