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d3953223 SN |
1 | /* |
2 | * S5P/EXYNOS4 SoC series camera host interface media device driver | |
3 | * | |
4 | * Copyright (C) 2011 Samsung Electronics Co., Ltd. | |
5 | * Contact: Sylwester Nawrocki, <s.nawrocki@samsung.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published | |
9 | * by the Free Software Foundation, either version 2 of the License, | |
10 | * or (at your option) any later version. | |
11 | */ | |
12 | ||
13 | #include <linux/bug.h> | |
14 | #include <linux/device.h> | |
15 | #include <linux/errno.h> | |
16 | #include <linux/i2c.h> | |
17 | #include <linux/kernel.h> | |
18 | #include <linux/list.h> | |
19 | #include <linux/module.h> | |
20 | #include <linux/platform_device.h> | |
21 | #include <linux/pm_runtime.h> | |
22 | #include <linux/types.h> | |
23 | #include <linux/slab.h> | |
131b6c61 | 24 | #include <media/v4l2-ctrls.h> |
d3953223 | 25 | #include <media/media-device.h> |
b9ee31e6 | 26 | #include <media/s5p_fimc.h> |
d3953223 SN |
27 | |
28 | #include "fimc-core.h" | |
0f735f52 | 29 | #include "fimc-lite.h" |
d3953223 SN |
30 | #include "fimc-mdevice.h" |
31 | #include "mipi-csis.h" | |
32 | ||
33 | static int __fimc_md_set_camclk(struct fimc_md *fmd, | |
34 | struct fimc_sensor_info *s_info, | |
35 | bool on); | |
36 | /** | |
37 | * fimc_pipeline_prepare - update pipeline information with subdevice pointers | |
38 | * @fimc: fimc device terminating the pipeline | |
39 | * | |
40 | * Caller holds the graph mutex. | |
41 | */ | |
b9ee31e6 SN |
42 | static void fimc_pipeline_prepare(struct fimc_pipeline *p, |
43 | struct media_entity *me) | |
d3953223 | 44 | { |
0f735f52 | 45 | struct media_pad *pad = &me->pads[0]; |
d3953223 | 46 | struct v4l2_subdev *sd; |
0f735f52 | 47 | int i; |
d3953223 | 48 | |
0f735f52 SN |
49 | for (i = 0; i < IDX_MAX; i++) |
50 | p->subdevs[i] = NULL; | |
d3953223 | 51 | |
0f735f52 SN |
52 | while (1) { |
53 | if (!(pad->flags & MEDIA_PAD_FL_SINK)) | |
54 | break; | |
55 | ||
56 | /* source pad */ | |
57 | pad = media_entity_remote_source(pad); | |
58 | if (pad == NULL || | |
59 | media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) | |
60 | break; | |
d3953223 | 61 | |
0f735f52 SN |
62 | sd = media_entity_to_v4l2_subdev(pad->entity); |
63 | ||
64 | switch (sd->grp_id) { | |
65 | case SENSOR_GROUP_ID: | |
66 | p->subdevs[IDX_SENSOR] = sd; | |
67 | break; | |
68 | case CSIS_GROUP_ID: | |
69 | p->subdevs[IDX_CSIS] = sd; | |
70 | break; | |
4af81310 SN |
71 | case FLITE_GROUP_ID: |
72 | p->subdevs[IDX_FLITE] = sd; | |
73 | break; | |
0f735f52 SN |
74 | case FIMC_GROUP_ID: |
75 | /* No need to control FIMC subdev through subdev ops */ | |
76 | break; | |
77 | default: | |
78 | pr_warn("%s: Unknown subdev grp_id: %#x\n", | |
79 | __func__, sd->grp_id); | |
80 | } | |
81 | /* sink pad */ | |
82 | pad = &sd->entity.pads[0]; | |
d3953223 SN |
83 | } |
84 | } | |
85 | ||
86 | /** | |
87 | * __subdev_set_power - change power state of a single subdev | |
88 | * @sd: subdevice to change power state for | |
89 | * @on: 1 to enable power or 0 to disable | |
90 | * | |
91 | * Return result of s_power subdev operation or -ENXIO if sd argument | |
92 | * is NULL. Return 0 if the subdevice does not implement s_power. | |
93 | */ | |
94 | static int __subdev_set_power(struct v4l2_subdev *sd, int on) | |
95 | { | |
96 | int *use_count; | |
97 | int ret; | |
98 | ||
99 | if (sd == NULL) | |
100 | return -ENXIO; | |
101 | ||
102 | use_count = &sd->entity.use_count; | |
103 | if (on && (*use_count)++ > 0) | |
104 | return 0; | |
105 | else if (!on && (*use_count == 0 || --(*use_count) > 0)) | |
106 | return 0; | |
107 | ret = v4l2_subdev_call(sd, core, s_power, on); | |
108 | ||
109 | return ret != -ENOIOCTLCMD ? ret : 0; | |
110 | } | |
111 | ||
112 | /** | |
113 | * fimc_pipeline_s_power - change power state of all pipeline subdevs | |
114 | * @fimc: fimc device terminating the pipeline | |
0f735f52 | 115 | * @state: true to power on, false to power off |
d3953223 | 116 | * |
0f735f52 | 117 | * Needs to be called with the graph mutex held. |
d3953223 | 118 | */ |
b9ee31e6 | 119 | static int fimc_pipeline_s_power(struct fimc_pipeline *p, bool state) |
d3953223 | 120 | { |
0f735f52 SN |
121 | unsigned int i; |
122 | int ret; | |
d3953223 | 123 | |
0f735f52 | 124 | if (p->subdevs[IDX_SENSOR] == NULL) |
d3953223 SN |
125 | return -ENXIO; |
126 | ||
0f735f52 SN |
127 | for (i = 0; i < IDX_MAX; i++) { |
128 | unsigned int idx = state ? (IDX_MAX - 1) - i : i; | |
129 | ||
130 | ret = __subdev_set_power(p->subdevs[idx], state); | |
131 | if (ret < 0 && ret != -ENXIO) | |
d3953223 | 132 | return ret; |
d3953223 SN |
133 | } |
134 | ||
0f735f52 | 135 | return 0; |
d3953223 SN |
136 | } |
137 | ||
138 | /** | |
b9ee31e6 SN |
139 | * __fimc_pipeline_open - update the pipeline information, enable power |
140 | * of all pipeline subdevs and the sensor clock | |
d3953223 SN |
141 | * @me: media entity to start graph walk with |
142 | * @prep: true to acquire sensor (and csis) subdevs | |
143 | * | |
144 | * This function must be called with the graph mutex held. | |
145 | */ | |
b9ee31e6 SN |
146 | static int __fimc_pipeline_open(struct fimc_pipeline *p, |
147 | struct media_entity *me, bool prep) | |
d3953223 SN |
148 | { |
149 | int ret; | |
150 | ||
151 | if (prep) | |
0f735f52 SN |
152 | fimc_pipeline_prepare(p, me); |
153 | ||
154 | if (p->subdevs[IDX_SENSOR] == NULL) | |
d3953223 | 155 | return -EINVAL; |
0f735f52 SN |
156 | |
157 | ret = fimc_md_set_camclk(p->subdevs[IDX_SENSOR], true); | |
d3953223 SN |
158 | if (ret) |
159 | return ret; | |
0f735f52 SN |
160 | |
161 | return fimc_pipeline_s_power(p, 1); | |
d3953223 SN |
162 | } |
163 | ||
b9ee31e6 SN |
164 | static int fimc_pipeline_open(struct fimc_pipeline *p, |
165 | struct media_entity *me, bool prep) | |
d3953223 SN |
166 | { |
167 | int ret; | |
168 | ||
169 | mutex_lock(&me->parent->graph_mutex); | |
b9ee31e6 | 170 | ret = __fimc_pipeline_open(p, me, prep); |
d3953223 SN |
171 | mutex_unlock(&me->parent->graph_mutex); |
172 | ||
173 | return ret; | |
174 | } | |
175 | ||
176 | /** | |
b9ee31e6 | 177 | * __fimc_pipeline_close - disable the sensor clock and pipeline power |
d3953223 SN |
178 | * @fimc: fimc device terminating the pipeline |
179 | * | |
180 | * Disable power of all subdevs in the pipeline and turn off the external | |
181 | * sensor clock. | |
182 | * Called with the graph mutex held. | |
183 | */ | |
b9ee31e6 | 184 | static int __fimc_pipeline_close(struct fimc_pipeline *p) |
d3953223 SN |
185 | { |
186 | int ret = 0; | |
187 | ||
0f735f52 SN |
188 | if (p->subdevs[IDX_SENSOR]) { |
189 | ret = fimc_pipeline_s_power(p, 0); | |
190 | fimc_md_set_camclk(p->subdevs[IDX_SENSOR], false); | |
d3953223 SN |
191 | } |
192 | return ret == -ENXIO ? 0 : ret; | |
193 | } | |
194 | ||
b9ee31e6 | 195 | static int fimc_pipeline_close(struct fimc_pipeline *p) |
d3953223 | 196 | { |
90e614bb | 197 | struct media_entity *me; |
d3953223 SN |
198 | int ret; |
199 | ||
90e614bb SN |
200 | if (!p || !p->subdevs[IDX_SENSOR]) |
201 | return -EINVAL; | |
202 | ||
203 | me = &p->subdevs[IDX_SENSOR]->entity; | |
d3953223 | 204 | mutex_lock(&me->parent->graph_mutex); |
b9ee31e6 | 205 | ret = __fimc_pipeline_close(p); |
d3953223 SN |
206 | mutex_unlock(&me->parent->graph_mutex); |
207 | ||
208 | return ret; | |
209 | } | |
210 | ||
211 | /** | |
212 | * fimc_pipeline_s_stream - invoke s_stream on pipeline subdevs | |
0f735f52 | 213 | * @pipeline: video pipeline structure |
d3953223 SN |
214 | * @on: passed as the s_stream call argument |
215 | */ | |
0f735f52 | 216 | int fimc_pipeline_s_stream(struct fimc_pipeline *p, bool on) |
d3953223 | 217 | { |
0f735f52 | 218 | int i, ret; |
d3953223 | 219 | |
0f735f52 | 220 | if (p->subdevs[IDX_SENSOR] == NULL) |
d3953223 SN |
221 | return -ENODEV; |
222 | ||
0f735f52 SN |
223 | for (i = 0; i < IDX_MAX; i++) { |
224 | unsigned int idx = on ? (IDX_MAX - 1) - i : i; | |
225 | ||
226 | ret = v4l2_subdev_call(p->subdevs[idx], video, s_stream, on); | |
227 | ||
228 | if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV) | |
229 | return ret; | |
230 | } | |
231 | ||
232 | return 0; | |
233 | ||
d3953223 | 234 | } |
b9ee31e6 SN |
235 | |
236 | /* Media pipeline operations for the FIMC/FIMC-LITE video device driver */ | |
237 | static const struct fimc_pipeline_ops fimc_pipeline_ops = { | |
238 | .open = fimc_pipeline_open, | |
239 | .close = fimc_pipeline_close, | |
240 | .set_stream = fimc_pipeline_s_stream, | |
241 | }; | |
d3953223 SN |
242 | |
243 | /* | |
244 | * Sensor subdevice helper functions | |
245 | */ | |
246 | static struct v4l2_subdev *fimc_md_register_sensor(struct fimc_md *fmd, | |
247 | struct fimc_sensor_info *s_info) | |
248 | { | |
249 | struct i2c_adapter *adapter; | |
250 | struct v4l2_subdev *sd = NULL; | |
251 | ||
252 | if (!s_info || !fmd) | |
253 | return NULL; | |
254 | ||
6612a082 | 255 | adapter = i2c_get_adapter(s_info->pdata.i2c_bus_num); |
ecd9acbf SN |
256 | if (!adapter) { |
257 | v4l2_warn(&fmd->v4l2_dev, | |
258 | "Failed to get I2C adapter %d, deferring probe\n", | |
6612a082 | 259 | s_info->pdata.i2c_bus_num); |
ecd9acbf SN |
260 | return ERR_PTR(-EPROBE_DEFER); |
261 | } | |
d3953223 | 262 | sd = v4l2_i2c_new_subdev_board(&fmd->v4l2_dev, adapter, |
6612a082 | 263 | s_info->pdata.board_info, NULL); |
d3953223 | 264 | if (IS_ERR_OR_NULL(sd)) { |
7acde02a | 265 | i2c_put_adapter(adapter); |
ecd9acbf SN |
266 | v4l2_warn(&fmd->v4l2_dev, |
267 | "Failed to acquire subdev %s, deferring probe\n", | |
6612a082 | 268 | s_info->pdata.board_info->type); |
ecd9acbf | 269 | return ERR_PTR(-EPROBE_DEFER); |
d3953223 SN |
270 | } |
271 | v4l2_set_subdev_hostdata(sd, s_info); | |
272 | sd->grp_id = SENSOR_GROUP_ID; | |
273 | ||
274 | v4l2_info(&fmd->v4l2_dev, "Registered sensor subdevice %s\n", | |
6612a082 | 275 | s_info->pdata.board_info->type); |
d3953223 SN |
276 | return sd; |
277 | } | |
278 | ||
279 | static void fimc_md_unregister_sensor(struct v4l2_subdev *sd) | |
280 | { | |
281 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
7acde02a | 282 | struct i2c_adapter *adapter; |
d3953223 SN |
283 | |
284 | if (!client) | |
285 | return; | |
286 | v4l2_device_unregister_subdev(sd); | |
7acde02a | 287 | adapter = client->adapter; |
d3953223 | 288 | i2c_unregister_device(client); |
7acde02a SN |
289 | if (adapter) |
290 | i2c_put_adapter(adapter); | |
d3953223 SN |
291 | } |
292 | ||
293 | static int fimc_md_register_sensor_entities(struct fimc_md *fmd) | |
294 | { | |
295 | struct s5p_platform_fimc *pdata = fmd->pdev->dev.platform_data; | |
296 | struct fimc_dev *fd = NULL; | |
297 | int num_clients, ret, i; | |
298 | ||
299 | /* | |
300 | * Runtime resume one of the FIMC entities to make sure | |
301 | * the sclk_cam clocks are not globally disabled. | |
302 | */ | |
303 | for (i = 0; !fd && i < ARRAY_SIZE(fmd->fimc); i++) | |
304 | if (fmd->fimc[i]) | |
305 | fd = fmd->fimc[i]; | |
306 | if (!fd) | |
307 | return -ENXIO; | |
308 | ret = pm_runtime_get_sync(&fd->pdev->dev); | |
309 | if (ret < 0) | |
310 | return ret; | |
311 | ||
312 | WARN_ON(pdata->num_clients > ARRAY_SIZE(fmd->sensor)); | |
313 | num_clients = min_t(u32, pdata->num_clients, ARRAY_SIZE(fmd->sensor)); | |
314 | ||
315 | fmd->num_sensors = num_clients; | |
316 | for (i = 0; i < num_clients; i++) { | |
ecd9acbf SN |
317 | struct v4l2_subdev *sd; |
318 | ||
6612a082 | 319 | fmd->sensor[i].pdata = pdata->isp_info[i]; |
d3953223 SN |
320 | ret = __fimc_md_set_camclk(fmd, &fmd->sensor[i], true); |
321 | if (ret) | |
322 | break; | |
ecd9acbf | 323 | sd = fimc_md_register_sensor(fmd, &fmd->sensor[i]); |
d3953223 | 324 | ret = __fimc_md_set_camclk(fmd, &fmd->sensor[i], false); |
ecd9acbf SN |
325 | |
326 | if (!IS_ERR(sd)) { | |
327 | fmd->sensor[i].subdev = sd; | |
328 | } else { | |
329 | fmd->sensor[i].subdev = NULL; | |
330 | ret = PTR_ERR(sd); | |
331 | break; | |
332 | } | |
d3953223 SN |
333 | if (ret) |
334 | break; | |
335 | } | |
336 | pm_runtime_put(&fd->pdev->dev); | |
337 | return ret; | |
338 | } | |
339 | ||
340 | /* | |
341 | * MIPI CSIS and FIMC platform devices registration. | |
342 | */ | |
343 | static int fimc_register_callback(struct device *dev, void *p) | |
344 | { | |
345 | struct fimc_dev *fimc = dev_get_drvdata(dev); | |
8163ec0b | 346 | struct v4l2_subdev *sd; |
d3953223 | 347 | struct fimc_md *fmd = p; |
afd7348c | 348 | int ret; |
4af81310 | 349 | |
afd7348c | 350 | if (fimc == NULL || fimc->id >= FIMC_MAX_DEVS) |
d3953223 SN |
351 | return 0; |
352 | ||
8163ec0b | 353 | sd = &fimc->vid_cap.subdev; |
693f5c40 SN |
354 | sd->grp_id = FIMC_GROUP_ID; |
355 | ||
356 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); | |
357 | if (ret) { | |
358 | v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.%d (%d)\n", | |
359 | fimc->id, ret); | |
afd7348c | 360 | return ret; |
693f5c40 SN |
361 | } |
362 | ||
afd7348c SN |
363 | fimc->pipeline_ops = &fimc_pipeline_ops; |
364 | fmd->fimc[fimc->id] = fimc; | |
365 | return 0; | |
d3953223 SN |
366 | } |
367 | ||
4af81310 SN |
368 | static int fimc_lite_register_callback(struct device *dev, void *p) |
369 | { | |
370 | struct fimc_lite *fimc = dev_get_drvdata(dev); | |
4af81310 SN |
371 | struct fimc_md *fmd = p; |
372 | int ret; | |
373 | ||
afd7348c | 374 | if (fimc == NULL || fimc->index >= FIMC_LITE_MAX_DEVS) |
4af81310 SN |
375 | return 0; |
376 | ||
8163ec0b | 377 | fimc->subdev.grp_id = FLITE_GROUP_ID; |
4af81310 | 378 | |
8163ec0b | 379 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, &fimc->subdev); |
4af81310 SN |
380 | if (ret) { |
381 | v4l2_err(&fmd->v4l2_dev, | |
382 | "Failed to register FIMC-LITE.%d (%d)\n", | |
383 | fimc->index, ret); | |
afd7348c | 384 | return ret; |
4af81310 | 385 | } |
afd7348c SN |
386 | |
387 | fimc->pipeline_ops = &fimc_pipeline_ops; | |
388 | fmd->fimc_lite[fimc->index] = fimc; | |
389 | return 0; | |
4af81310 SN |
390 | } |
391 | ||
d3953223 SN |
392 | static int csis_register_callback(struct device *dev, void *p) |
393 | { | |
394 | struct v4l2_subdev *sd = dev_get_drvdata(dev); | |
395 | struct platform_device *pdev; | |
396 | struct fimc_md *fmd = p; | |
397 | int id, ret; | |
398 | ||
399 | if (!sd) | |
400 | return 0; | |
401 | pdev = v4l2_get_subdevdata(sd); | |
402 | if (!pdev || pdev->id < 0 || pdev->id >= CSIS_MAX_ENTITIES) | |
403 | return 0; | |
404 | v4l2_info(sd, "csis%d sd: %s\n", pdev->id, sd->name); | |
405 | ||
406 | id = pdev->id < 0 ? 0 : pdev->id; | |
d3953223 | 407 | sd->grp_id = CSIS_GROUP_ID; |
afd7348c | 408 | |
d3953223 | 409 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); |
afd7348c SN |
410 | if (!ret) |
411 | fmd->csis[id].sd = sd; | |
412 | else | |
d3953223 SN |
413 | v4l2_err(&fmd->v4l2_dev, |
414 | "Failed to register CSIS subdevice: %d\n", ret); | |
415 | return ret; | |
416 | } | |
417 | ||
418 | /** | |
419 | * fimc_md_register_platform_entities - register FIMC and CSIS media entities | |
420 | */ | |
421 | static int fimc_md_register_platform_entities(struct fimc_md *fmd) | |
422 | { | |
ecd9acbf | 423 | struct s5p_platform_fimc *pdata = fmd->pdev->dev.platform_data; |
d3953223 | 424 | struct device_driver *driver; |
ecd9acbf | 425 | int ret, i; |
d3953223 SN |
426 | |
427 | driver = driver_find(FIMC_MODULE_NAME, &platform_bus_type); | |
ecd9acbf SN |
428 | if (!driver) { |
429 | v4l2_warn(&fmd->v4l2_dev, | |
430 | "%s driver not found, deffering probe\n", | |
431 | FIMC_MODULE_NAME); | |
432 | return -EPROBE_DEFER; | |
433 | } | |
434 | ||
d3953223 SN |
435 | ret = driver_for_each_device(driver, NULL, fmd, |
436 | fimc_register_callback); | |
d3953223 SN |
437 | if (ret) |
438 | return ret; | |
4af81310 SN |
439 | |
440 | driver = driver_find(FIMC_LITE_DRV_NAME, &platform_bus_type); | |
441 | if (driver && try_module_get(driver->owner)) { | |
442 | ret = driver_for_each_device(driver, NULL, fmd, | |
443 | fimc_lite_register_callback); | |
444 | if (ret) | |
445 | return ret; | |
446 | module_put(driver->owner); | |
447 | } | |
ecd9acbf SN |
448 | /* |
449 | * Check if there is any sensor on the MIPI-CSI2 bus and | |
450 | * if not skip the s5p-csis module loading. | |
451 | */ | |
41df5bf0 SN |
452 | if (pdata == NULL) |
453 | return 0; | |
ecd9acbf SN |
454 | for (i = 0; i < pdata->num_clients; i++) { |
455 | if (pdata->isp_info[i].bus_type == FIMC_MIPI_CSI2) { | |
456 | ret = 1; | |
457 | break; | |
458 | } | |
459 | } | |
460 | if (!ret) | |
461 | return 0; | |
d3953223 SN |
462 | |
463 | driver = driver_find(CSIS_DRIVER_NAME, &platform_bus_type); | |
ecd9acbf SN |
464 | if (!driver || !try_module_get(driver->owner)) { |
465 | v4l2_warn(&fmd->v4l2_dev, | |
466 | "%s driver not found, deffering probe\n", | |
467 | CSIS_DRIVER_NAME); | |
468 | return -EPROBE_DEFER; | |
469 | } | |
470 | ||
471 | return driver_for_each_device(driver, NULL, fmd, | |
472 | csis_register_callback); | |
d3953223 SN |
473 | } |
474 | ||
475 | static void fimc_md_unregister_entities(struct fimc_md *fmd) | |
476 | { | |
477 | int i; | |
478 | ||
479 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
480 | if (fmd->fimc[i] == NULL) | |
481 | continue; | |
693f5c40 | 482 | v4l2_device_unregister_subdev(&fmd->fimc[i]->vid_cap.subdev); |
b9ee31e6 | 483 | fmd->fimc[i]->pipeline_ops = NULL; |
d3953223 SN |
484 | fmd->fimc[i] = NULL; |
485 | } | |
4af81310 SN |
486 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { |
487 | if (fmd->fimc_lite[i] == NULL) | |
488 | continue; | |
489 | v4l2_device_unregister_subdev(&fmd->fimc_lite[i]->subdev); | |
b9ee31e6 | 490 | fmd->fimc[i]->pipeline_ops = NULL; |
4af81310 SN |
491 | fmd->fimc_lite[i] = NULL; |
492 | } | |
d3953223 SN |
493 | for (i = 0; i < CSIS_MAX_ENTITIES; i++) { |
494 | if (fmd->csis[i].sd == NULL) | |
495 | continue; | |
496 | v4l2_device_unregister_subdev(fmd->csis[i].sd); | |
ecd9acbf | 497 | module_put(fmd->csis[i].sd->owner); |
d3953223 SN |
498 | fmd->csis[i].sd = NULL; |
499 | } | |
500 | for (i = 0; i < fmd->num_sensors; i++) { | |
501 | if (fmd->sensor[i].subdev == NULL) | |
502 | continue; | |
503 | fimc_md_unregister_sensor(fmd->sensor[i].subdev); | |
504 | fmd->sensor[i].subdev = NULL; | |
505 | } | |
506 | } | |
507 | ||
d3953223 SN |
508 | /** |
509 | * __fimc_md_create_fimc_links - create links to all FIMC entities | |
510 | * @fmd: fimc media device | |
511 | * @source: the source entity to create links to all fimc entities from | |
512 | * @sensor: sensor subdev linked to FIMC[fimc_id] entity, may be null | |
513 | * @pad: the source entity pad index | |
d0da3c35 | 514 | * @link_mask: bitmask of the fimc devices for which link should be enabled |
d3953223 | 515 | */ |
4af81310 SN |
516 | static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, |
517 | struct media_entity *source, | |
518 | struct v4l2_subdev *sensor, | |
d0da3c35 | 519 | int pad, int link_mask) |
d3953223 SN |
520 | { |
521 | struct fimc_sensor_info *s_info; | |
522 | struct media_entity *sink; | |
4af81310 | 523 | unsigned int flags = 0; |
237e0265 | 524 | int ret, i; |
d3953223 SN |
525 | |
526 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
527 | if (!fmd->fimc[i]) | |
4af81310 | 528 | continue; |
d3953223 SN |
529 | /* |
530 | * Some FIMC variants are not fitted with camera capture | |
531 | * interface. Skip creating a link from sensor for those. | |
532 | */ | |
4af81310 | 533 | if (!fmd->fimc[i]->variant->has_cam_if) |
d3953223 SN |
534 | continue; |
535 | ||
d0da3c35 | 536 | flags = ((1 << i) & link_mask) ? MEDIA_LNK_FL_ENABLED : 0; |
4af81310 | 537 | |
693f5c40 | 538 | sink = &fmd->fimc[i]->vid_cap.subdev.entity; |
237e0265 SN |
539 | ret = media_entity_create_link(source, pad, sink, |
540 | FIMC_SD_PAD_SINK, flags); | |
d3953223 SN |
541 | if (ret) |
542 | return ret; | |
543 | ||
237e0265 SN |
544 | /* Notify FIMC capture subdev entity */ |
545 | ret = media_entity_call(sink, link_setup, &sink->pads[0], | |
546 | &source->pads[pad], flags); | |
547 | if (ret) | |
548 | break; | |
549 | ||
d3953223 SN |
550 | v4l2_info(&fmd->v4l2_dev, "created link [%s] %c> [%s]", |
551 | source->name, flags ? '=' : '-', sink->name); | |
552 | ||
4af81310 | 553 | if (flags == 0 || sensor == NULL) |
d3953223 SN |
554 | continue; |
555 | s_info = v4l2_get_subdev_hostdata(sensor); | |
556 | if (!WARN_ON(s_info == NULL)) { | |
557 | unsigned long irq_flags; | |
558 | spin_lock_irqsave(&fmd->slock, irq_flags); | |
559 | s_info->host = fmd->fimc[i]; | |
560 | spin_unlock_irqrestore(&fmd->slock, irq_flags); | |
561 | } | |
562 | } | |
4af81310 SN |
563 | |
564 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { | |
565 | if (!fmd->fimc_lite[i]) | |
566 | continue; | |
567 | ||
d0da3c35 SN |
568 | if (link_mask & (1 << (i + FIMC_MAX_DEVS))) |
569 | flags = MEDIA_LNK_FL_ENABLED; | |
570 | else | |
571 | flags = 0; | |
4af81310 SN |
572 | |
573 | sink = &fmd->fimc_lite[i]->subdev.entity; | |
574 | ret = media_entity_create_link(source, pad, sink, | |
575 | FLITE_SD_PAD_SINK, flags); | |
576 | if (ret) | |
577 | return ret; | |
578 | ||
579 | /* Notify FIMC-LITE subdev entity */ | |
580 | ret = media_entity_call(sink, link_setup, &sink->pads[0], | |
581 | &source->pads[pad], flags); | |
582 | if (ret) | |
583 | break; | |
584 | ||
585 | v4l2_info(&fmd->v4l2_dev, "created link [%s] %c> [%s]", | |
586 | source->name, flags ? '=' : '-', sink->name); | |
587 | } | |
d3953223 SN |
588 | return 0; |
589 | } | |
590 | ||
4af81310 SN |
591 | /* Create links from FIMC-LITE source pads to other entities */ |
592 | static int __fimc_md_create_flite_source_links(struct fimc_md *fmd) | |
593 | { | |
594 | struct media_entity *source, *sink; | |
595 | unsigned int flags = MEDIA_LNK_FL_ENABLED; | |
596 | int i, ret; | |
597 | ||
598 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { | |
599 | struct fimc_lite *fimc = fmd->fimc_lite[i]; | |
600 | if (fimc == NULL) | |
601 | continue; | |
602 | source = &fimc->subdev.entity; | |
1bcd7041 | 603 | sink = &fimc->vfd.entity; |
4af81310 SN |
604 | /* FIMC-LITE's subdev and video node */ |
605 | ret = media_entity_create_link(source, FIMC_SD_PAD_SOURCE, | |
606 | sink, 0, flags); | |
607 | if (ret) | |
608 | break; | |
609 | /* TODO: create links to other entities */ | |
610 | } | |
611 | ||
612 | return ret; | |
613 | } | |
614 | ||
d3953223 SN |
615 | /** |
616 | * fimc_md_create_links - create default links between registered entities | |
617 | * | |
618 | * Parallel interface sensor entities are connected directly to FIMC capture | |
619 | * entities. The sensors using MIPI CSIS bus are connected through immutable | |
620 | * link with CSI receiver entity specified by mux_id. Any registered CSIS | |
621 | * entity has a link to each registered FIMC capture entity. Enabled links | |
622 | * are created by default between each subsequent registered sensor and | |
623 | * subsequent FIMC capture entity. The number of default active links is | |
624 | * determined by the number of available sensors or FIMC entities, | |
625 | * whichever is less. | |
626 | */ | |
627 | static int fimc_md_create_links(struct fimc_md *fmd) | |
628 | { | |
5d33ee92 | 629 | struct v4l2_subdev *csi_sensors[2] = { NULL }; |
d3953223 SN |
630 | struct v4l2_subdev *sensor, *csis; |
631 | struct s5p_fimc_isp_info *pdata; | |
632 | struct fimc_sensor_info *s_info; | |
237e0265 | 633 | struct media_entity *source, *sink; |
d0da3c35 SN |
634 | int i, pad, fimc_id = 0, ret = 0; |
635 | u32 flags, link_mask = 0; | |
d3953223 SN |
636 | |
637 | for (i = 0; i < fmd->num_sensors; i++) { | |
638 | if (fmd->sensor[i].subdev == NULL) | |
639 | continue; | |
640 | ||
641 | sensor = fmd->sensor[i].subdev; | |
642 | s_info = v4l2_get_subdev_hostdata(sensor); | |
6612a082 | 643 | if (!s_info) |
d3953223 SN |
644 | continue; |
645 | ||
646 | source = NULL; | |
6612a082 | 647 | pdata = &s_info->pdata; |
d3953223 SN |
648 | |
649 | switch (pdata->bus_type) { | |
650 | case FIMC_MIPI_CSI2: | |
651 | if (WARN(pdata->mux_id >= CSIS_MAX_ENTITIES, | |
652 | "Wrong CSI channel id: %d\n", pdata->mux_id)) | |
653 | return -EINVAL; | |
654 | ||
655 | csis = fmd->csis[pdata->mux_id].sd; | |
656 | if (WARN(csis == NULL, | |
657 | "MIPI-CSI interface specified " | |
658 | "but s5p-csis module is not loaded!\n")) | |
d12392ec | 659 | return -EINVAL; |
d3953223 SN |
660 | |
661 | ret = media_entity_create_link(&sensor->entity, 0, | |
662 | &csis->entity, CSIS_PAD_SINK, | |
663 | MEDIA_LNK_FL_IMMUTABLE | | |
664 | MEDIA_LNK_FL_ENABLED); | |
665 | if (ret) | |
666 | return ret; | |
667 | ||
668 | v4l2_info(&fmd->v4l2_dev, "created link [%s] => [%s]", | |
669 | sensor->entity.name, csis->entity.name); | |
670 | ||
4af81310 | 671 | source = NULL; |
5d33ee92 | 672 | csi_sensors[pdata->mux_id] = sensor; |
d3953223 SN |
673 | break; |
674 | ||
675 | case FIMC_ITU_601...FIMC_ITU_656: | |
676 | source = &sensor->entity; | |
677 | pad = 0; | |
678 | break; | |
679 | ||
680 | default: | |
681 | v4l2_err(&fmd->v4l2_dev, "Wrong bus_type: %x\n", | |
682 | pdata->bus_type); | |
683 | return -EINVAL; | |
684 | } | |
685 | if (source == NULL) | |
686 | continue; | |
687 | ||
d0da3c35 | 688 | link_mask = 1 << fimc_id++; |
4af81310 | 689 | ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor, |
d0da3c35 | 690 | pad, link_mask); |
4af81310 SN |
691 | } |
692 | ||
4af81310 SN |
693 | for (i = 0; i < ARRAY_SIZE(fmd->csis); i++) { |
694 | if (fmd->csis[i].sd == NULL) | |
695 | continue; | |
696 | source = &fmd->csis[i].sd->entity; | |
697 | pad = CSIS_PAD_SOURCE; | |
5d33ee92 | 698 | sensor = csi_sensors[i]; |
4af81310 | 699 | |
d0da3c35 | 700 | link_mask = 1 << fimc_id++; |
5d33ee92 | 701 | ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor, |
d0da3c35 | 702 | pad, link_mask); |
d3953223 | 703 | } |
4af81310 | 704 | |
237e0265 SN |
705 | /* Create immutable links between each FIMC's subdev and video node */ |
706 | flags = MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED; | |
707 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
708 | if (!fmd->fimc[i]) | |
709 | continue; | |
693f5c40 | 710 | source = &fmd->fimc[i]->vid_cap.subdev.entity; |
31d34d9b | 711 | sink = &fmd->fimc[i]->vid_cap.vfd.entity; |
237e0265 SN |
712 | ret = media_entity_create_link(source, FIMC_SD_PAD_SOURCE, |
713 | sink, 0, flags); | |
714 | if (ret) | |
715 | break; | |
716 | } | |
717 | ||
4af81310 | 718 | return __fimc_md_create_flite_source_links(fmd); |
d3953223 SN |
719 | } |
720 | ||
721 | /* | |
722 | * The peripheral sensor clock management. | |
723 | */ | |
724 | static int fimc_md_get_clocks(struct fimc_md *fmd) | |
725 | { | |
726 | char clk_name[32]; | |
727 | struct clk *clock; | |
728 | int i; | |
729 | ||
730 | for (i = 0; i < FIMC_MAX_CAMCLKS; i++) { | |
731 | snprintf(clk_name, sizeof(clk_name), "sclk_cam%u", i); | |
732 | clock = clk_get(NULL, clk_name); | |
733 | if (IS_ERR_OR_NULL(clock)) { | |
734 | v4l2_err(&fmd->v4l2_dev, "Failed to get clock: %s", | |
735 | clk_name); | |
736 | return -ENXIO; | |
737 | } | |
738 | fmd->camclk[i].clock = clock; | |
739 | } | |
740 | return 0; | |
741 | } | |
742 | ||
743 | static void fimc_md_put_clocks(struct fimc_md *fmd) | |
744 | { | |
745 | int i = FIMC_MAX_CAMCLKS; | |
746 | ||
747 | while (--i >= 0) { | |
748 | if (IS_ERR_OR_NULL(fmd->camclk[i].clock)) | |
749 | continue; | |
750 | clk_put(fmd->camclk[i].clock); | |
751 | fmd->camclk[i].clock = NULL; | |
752 | } | |
753 | } | |
754 | ||
755 | static int __fimc_md_set_camclk(struct fimc_md *fmd, | |
e3fc82e8 SN |
756 | struct fimc_sensor_info *s_info, |
757 | bool on) | |
d3953223 | 758 | { |
6612a082 | 759 | struct s5p_fimc_isp_info *pdata = &s_info->pdata; |
d3953223 SN |
760 | struct fimc_camclk_info *camclk; |
761 | int ret = 0; | |
762 | ||
763 | if (WARN_ON(pdata->clk_id >= FIMC_MAX_CAMCLKS) || fmd == NULL) | |
764 | return -EINVAL; | |
765 | ||
d3953223 SN |
766 | camclk = &fmd->camclk[pdata->clk_id]; |
767 | ||
e3fc82e8 SN |
768 | dbg("camclk %d, f: %lu, use_count: %d, on: %d", |
769 | pdata->clk_id, pdata->clk_frequency, camclk->use_count, on); | |
d3953223 SN |
770 | |
771 | if (on) { | |
772 | if (camclk->use_count > 0 && | |
773 | camclk->frequency != pdata->clk_frequency) | |
774 | return -EINVAL; | |
775 | ||
776 | if (camclk->use_count++ == 0) { | |
777 | clk_set_rate(camclk->clock, pdata->clk_frequency); | |
778 | camclk->frequency = pdata->clk_frequency; | |
779 | ret = clk_enable(camclk->clock); | |
e3fc82e8 SN |
780 | dbg("Enabled camclk %d: f: %lu", pdata->clk_id, |
781 | clk_get_rate(camclk->clock)); | |
d3953223 | 782 | } |
d3953223 SN |
783 | return ret; |
784 | } | |
785 | ||
786 | if (WARN_ON(camclk->use_count == 0)) | |
787 | return 0; | |
788 | ||
789 | if (--camclk->use_count == 0) { | |
790 | clk_disable(camclk->clock); | |
d3953223 SN |
791 | dbg("Disabled camclk %d", pdata->clk_id); |
792 | } | |
793 | return ret; | |
794 | } | |
795 | ||
796 | /** | |
797 | * fimc_md_set_camclk - peripheral sensor clock setup | |
798 | * @sd: sensor subdev to configure sclk_cam clock for | |
799 | * @on: 1 to enable or 0 to disable the clock | |
800 | * | |
801 | * There are 2 separate clock outputs available in the SoC for external | |
802 | * image processors. These clocks are shared between all registered FIMC | |
803 | * devices to which sensors can be attached, either directly or through | |
804 | * the MIPI CSI receiver. The clock is allowed here to be used by | |
805 | * multiple sensors concurrently if they use same frequency. | |
d3953223 SN |
806 | * This function should only be called when the graph mutex is held. |
807 | */ | |
808 | int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on) | |
809 | { | |
810 | struct fimc_sensor_info *s_info = v4l2_get_subdev_hostdata(sd); | |
811 | struct fimc_md *fmd = entity_to_fimc_mdev(&sd->entity); | |
812 | ||
813 | return __fimc_md_set_camclk(fmd, s_info, on); | |
814 | } | |
815 | ||
816 | static int fimc_md_link_notify(struct media_pad *source, | |
817 | struct media_pad *sink, u32 flags) | |
818 | { | |
4af81310 SN |
819 | struct fimc_lite *fimc_lite = NULL; |
820 | struct fimc_dev *fimc = NULL; | |
0f735f52 | 821 | struct fimc_pipeline *pipeline; |
237e0265 | 822 | struct v4l2_subdev *sd; |
d3953223 SN |
823 | int ret = 0; |
824 | ||
237e0265 | 825 | if (media_entity_type(sink->entity) != MEDIA_ENT_T_V4L2_SUBDEV) |
d3953223 SN |
826 | return 0; |
827 | ||
237e0265 | 828 | sd = media_entity_to_v4l2_subdev(sink->entity); |
d3953223 | 829 | |
0f735f52 | 830 | switch (sd->grp_id) { |
4af81310 SN |
831 | case FLITE_GROUP_ID: |
832 | fimc_lite = v4l2_get_subdevdata(sd); | |
833 | pipeline = &fimc_lite->pipeline; | |
834 | break; | |
0f735f52 SN |
835 | case FIMC_GROUP_ID: |
836 | fimc = v4l2_get_subdevdata(sd); | |
837 | pipeline = &fimc->pipeline; | |
838 | break; | |
839 | default: | |
840 | return 0; | |
841 | } | |
131b6c61 | 842 | |
0f735f52 | 843 | if (!(flags & MEDIA_LNK_FL_ENABLED)) { |
b9ee31e6 | 844 | ret = __fimc_pipeline_close(pipeline); |
0f735f52 SN |
845 | pipeline->subdevs[IDX_SENSOR] = NULL; |
846 | pipeline->subdevs[IDX_CSIS] = NULL; | |
847 | ||
848 | if (fimc) { | |
849 | mutex_lock(&fimc->lock); | |
850 | fimc_ctrls_delete(fimc->vid_cap.ctx); | |
851 | mutex_unlock(&fimc->lock); | |
852 | } | |
d3953223 SN |
853 | return ret; |
854 | } | |
855 | /* | |
856 | * Link activation. Enable power of pipeline elements only if the | |
857 | * pipeline is already in use, i.e. its video node is opened. | |
131b6c61 | 858 | * Recreate the controls destroyed during the link deactivation. |
d3953223 | 859 | */ |
4af81310 SN |
860 | if (fimc) { |
861 | mutex_lock(&fimc->lock); | |
862 | if (fimc->vid_cap.refcnt > 0) { | |
b9ee31e6 SN |
863 | ret = __fimc_pipeline_open(pipeline, |
864 | source->entity, true); | |
131b6c61 SN |
865 | if (!ret) |
866 | ret = fimc_capture_ctrls_create(fimc); | |
4af81310 SN |
867 | } |
868 | mutex_unlock(&fimc->lock); | |
869 | } else { | |
870 | mutex_lock(&fimc_lite->lock); | |
871 | if (fimc_lite->ref_count > 0) { | |
b9ee31e6 SN |
872 | ret = __fimc_pipeline_open(pipeline, |
873 | source->entity, true); | |
4af81310 SN |
874 | } |
875 | mutex_unlock(&fimc_lite->lock); | |
131b6c61 | 876 | } |
d3953223 SN |
877 | return ret ? -EPIPE : ret; |
878 | } | |
879 | ||
880 | static ssize_t fimc_md_sysfs_show(struct device *dev, | |
881 | struct device_attribute *attr, char *buf) | |
882 | { | |
883 | struct platform_device *pdev = to_platform_device(dev); | |
884 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
885 | ||
886 | if (fmd->user_subdev_api) | |
887 | return strlcpy(buf, "Sub-device API (sub-dev)\n", PAGE_SIZE); | |
888 | ||
889 | return strlcpy(buf, "V4L2 video node only API (vid-dev)\n", PAGE_SIZE); | |
890 | } | |
891 | ||
892 | static ssize_t fimc_md_sysfs_store(struct device *dev, | |
893 | struct device_attribute *attr, | |
894 | const char *buf, size_t count) | |
895 | { | |
896 | struct platform_device *pdev = to_platform_device(dev); | |
897 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
898 | bool subdev_api; | |
899 | int i; | |
900 | ||
901 | if (!strcmp(buf, "vid-dev\n")) | |
902 | subdev_api = false; | |
903 | else if (!strcmp(buf, "sub-dev\n")) | |
904 | subdev_api = true; | |
905 | else | |
906 | return count; | |
907 | ||
908 | fmd->user_subdev_api = subdev_api; | |
909 | for (i = 0; i < FIMC_MAX_DEVS; i++) | |
910 | if (fmd->fimc[i]) | |
911 | fmd->fimc[i]->vid_cap.user_subdev_api = subdev_api; | |
912 | return count; | |
913 | } | |
914 | /* | |
915 | * This device attribute is to select video pipeline configuration method. | |
916 | * There are following valid values: | |
917 | * vid-dev - for V4L2 video node API only, subdevice will be configured | |
918 | * by the host driver. | |
919 | * sub-dev - for media controller API, subdevs must be configured in user | |
920 | * space before starting streaming. | |
921 | */ | |
922 | static DEVICE_ATTR(subdev_conf_mode, S_IWUSR | S_IRUGO, | |
923 | fimc_md_sysfs_show, fimc_md_sysfs_store); | |
924 | ||
ecd9acbf | 925 | static int fimc_md_probe(struct platform_device *pdev) |
d3953223 SN |
926 | { |
927 | struct v4l2_device *v4l2_dev; | |
928 | struct fimc_md *fmd; | |
929 | int ret; | |
930 | ||
6d91a51a | 931 | fmd = devm_kzalloc(&pdev->dev, sizeof(*fmd), GFP_KERNEL); |
d3953223 SN |
932 | if (!fmd) |
933 | return -ENOMEM; | |
934 | ||
935 | spin_lock_init(&fmd->slock); | |
936 | fmd->pdev = pdev; | |
937 | ||
938 | strlcpy(fmd->media_dev.model, "SAMSUNG S5P FIMC", | |
939 | sizeof(fmd->media_dev.model)); | |
940 | fmd->media_dev.link_notify = fimc_md_link_notify; | |
941 | fmd->media_dev.dev = &pdev->dev; | |
942 | ||
943 | v4l2_dev = &fmd->v4l2_dev; | |
944 | v4l2_dev->mdev = &fmd->media_dev; | |
e1d72f4d | 945 | v4l2_dev->notify = fimc_sensor_notify; |
d3953223 SN |
946 | snprintf(v4l2_dev->name, sizeof(v4l2_dev->name), "%s", |
947 | dev_name(&pdev->dev)); | |
948 | ||
949 | ret = v4l2_device_register(&pdev->dev, &fmd->v4l2_dev); | |
950 | if (ret < 0) { | |
951 | v4l2_err(v4l2_dev, "Failed to register v4l2_device: %d\n", ret); | |
6d91a51a | 952 | return ret; |
d3953223 SN |
953 | } |
954 | ret = media_device_register(&fmd->media_dev); | |
955 | if (ret < 0) { | |
956 | v4l2_err(v4l2_dev, "Failed to register media device: %d\n", ret); | |
693f5c40 | 957 | goto err_md; |
d3953223 SN |
958 | } |
959 | ret = fimc_md_get_clocks(fmd); | |
960 | if (ret) | |
693f5c40 | 961 | goto err_clk; |
d3953223 SN |
962 | |
963 | fmd->user_subdev_api = false; | |
693f5c40 SN |
964 | |
965 | /* Protect the media graph while we're registering entities */ | |
966 | mutex_lock(&fmd->media_dev.graph_mutex); | |
967 | ||
d3953223 SN |
968 | ret = fimc_md_register_platform_entities(fmd); |
969 | if (ret) | |
693f5c40 | 970 | goto err_unlock; |
d3953223 | 971 | |
5cbf6f16 SN |
972 | if (pdev->dev.platform_data) { |
973 | ret = fimc_md_register_sensor_entities(fmd); | |
974 | if (ret) | |
693f5c40 | 975 | goto err_unlock; |
5cbf6f16 | 976 | } |
d3953223 SN |
977 | ret = fimc_md_create_links(fmd); |
978 | if (ret) | |
693f5c40 | 979 | goto err_unlock; |
d3953223 SN |
980 | ret = v4l2_device_register_subdev_nodes(&fmd->v4l2_dev); |
981 | if (ret) | |
693f5c40 | 982 | goto err_unlock; |
d3953223 SN |
983 | |
984 | ret = device_create_file(&pdev->dev, &dev_attr_subdev_conf_mode); | |
693f5c40 SN |
985 | if (ret) |
986 | goto err_unlock; | |
987 | ||
988 | platform_set_drvdata(pdev, fmd); | |
989 | mutex_unlock(&fmd->media_dev.graph_mutex); | |
990 | return 0; | |
991 | ||
992 | err_unlock: | |
993 | mutex_unlock(&fmd->media_dev.graph_mutex); | |
994 | err_clk: | |
d3953223 SN |
995 | media_device_unregister(&fmd->media_dev); |
996 | fimc_md_put_clocks(fmd); | |
997 | fimc_md_unregister_entities(fmd); | |
693f5c40 | 998 | err_md: |
d3953223 | 999 | v4l2_device_unregister(&fmd->v4l2_dev); |
d3953223 SN |
1000 | return ret; |
1001 | } | |
1002 | ||
1003 | static int __devexit fimc_md_remove(struct platform_device *pdev) | |
1004 | { | |
1005 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1006 | ||
1007 | if (!fmd) | |
1008 | return 0; | |
1009 | device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode); | |
1010 | fimc_md_unregister_entities(fmd); | |
1011 | media_device_unregister(&fmd->media_dev); | |
1012 | fimc_md_put_clocks(fmd); | |
d3953223 SN |
1013 | return 0; |
1014 | } | |
1015 | ||
1016 | static struct platform_driver fimc_md_driver = { | |
1017 | .probe = fimc_md_probe, | |
1018 | .remove = __devexit_p(fimc_md_remove), | |
1019 | .driver = { | |
1020 | .name = "s5p-fimc-md", | |
1021 | .owner = THIS_MODULE, | |
1022 | } | |
1023 | }; | |
1024 | ||
7e566be2 | 1025 | static int __init fimc_md_init(void) |
d3953223 SN |
1026 | { |
1027 | int ret; | |
ecd9acbf | 1028 | |
d3953223 SN |
1029 | request_module("s5p-csis"); |
1030 | ret = fimc_register_driver(); | |
1031 | if (ret) | |
1032 | return ret; | |
ecd9acbf | 1033 | |
d3953223 SN |
1034 | return platform_driver_register(&fimc_md_driver); |
1035 | } | |
7e566be2 SK |
1036 | |
1037 | static void __exit fimc_md_exit(void) | |
d3953223 SN |
1038 | { |
1039 | platform_driver_unregister(&fimc_md_driver); | |
1040 | fimc_unregister_driver(); | |
1041 | } | |
1042 | ||
1043 | module_init(fimc_md_init); | |
1044 | module_exit(fimc_md_exit); | |
1045 | ||
1046 | MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); | |
1047 | MODULE_DESCRIPTION("S5P FIMC camera host interface/video postprocessor driver"); | |
1048 | MODULE_LICENSE("GPL"); | |
1049 | MODULE_VERSION("2.0.1"); |