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Commit | Line | Data |
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d3953223 SN |
1 | /* |
2 | * S5P/EXYNOS4 SoC series camera host interface media device driver | |
3 | * | |
52917bcb SN |
4 | * Copyright (C) 2011 - 2013 Samsung Electronics Co., Ltd. |
5 | * Author: Sylwester Nawrocki <s.nawrocki@samsung.com> | |
d3953223 SN |
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> | |
e2985a26 SN |
20 | #include <linux/of.h> |
21 | #include <linux/of_platform.h> | |
22 | #include <linux/of_device.h> | |
d3953223 SN |
23 | #include <linux/platform_device.h> |
24 | #include <linux/pm_runtime.h> | |
25 | #include <linux/types.h> | |
26 | #include <linux/slab.h> | |
131b6c61 | 27 | #include <media/v4l2-ctrls.h> |
e2985a26 | 28 | #include <media/v4l2-of.h> |
d3953223 | 29 | #include <media/media-device.h> |
b9ee31e6 | 30 | #include <media/s5p_fimc.h> |
d3953223 | 31 | |
56fa1a6a | 32 | #include "media-dev.h" |
d3953223 | 33 | #include "fimc-core.h" |
e781bbe3 | 34 | #include "fimc-is.h" |
0f735f52 | 35 | #include "fimc-lite.h" |
d3953223 SN |
36 | #include "mipi-csis.h" |
37 | ||
38 | static int __fimc_md_set_camclk(struct fimc_md *fmd, | |
4c8f0629 | 39 | struct fimc_source_info *si, |
d3953223 | 40 | bool on); |
52917bcb SN |
41 | |
42 | /* Set up image sensor subdev -> FIMC capture node notifications. */ | |
43 | static void __setup_sensor_notification(struct fimc_md *fmd, | |
44 | struct v4l2_subdev *sensor, | |
45 | struct v4l2_subdev *fimc_sd) | |
46 | { | |
47 | struct fimc_source_info *src_inf; | |
48 | struct fimc_sensor_info *md_si; | |
49 | unsigned long flags; | |
50 | ||
51 | src_inf = v4l2_get_subdev_hostdata(sensor); | |
52 | if (!src_inf || WARN_ON(fmd == NULL)) | |
53 | return; | |
54 | ||
55 | md_si = source_to_sensor_info(src_inf); | |
56 | spin_lock_irqsave(&fmd->slock, flags); | |
57 | md_si->host = v4l2_get_subdevdata(fimc_sd); | |
58 | spin_unlock_irqrestore(&fmd->slock, flags); | |
59 | } | |
60 | ||
d3953223 SN |
61 | /** |
62 | * fimc_pipeline_prepare - update pipeline information with subdevice pointers | |
39bb6df6 | 63 | * @me: media entity terminating the pipeline |
d3953223 SN |
64 | * |
65 | * Caller holds the graph mutex. | |
66 | */ | |
b9ee31e6 | 67 | static void fimc_pipeline_prepare(struct fimc_pipeline *p, |
403dfbec | 68 | struct media_entity *me) |
d3953223 | 69 | { |
52917bcb | 70 | struct fimc_md *fmd = entity_to_fimc_mdev(me); |
d3953223 | 71 | struct v4l2_subdev *sd; |
52917bcb | 72 | struct v4l2_subdev *sensor = NULL; |
0f735f52 | 73 | int i; |
d3953223 | 74 | |
0f735f52 SN |
75 | for (i = 0; i < IDX_MAX; i++) |
76 | p->subdevs[i] = NULL; | |
d3953223 | 77 | |
0f735f52 | 78 | while (1) { |
39bb6df6 SN |
79 | struct media_pad *pad = NULL; |
80 | ||
81 | /* Find remote source pad */ | |
82 | for (i = 0; i < me->num_pads; i++) { | |
83 | struct media_pad *spad = &me->pads[i]; | |
84 | if (!(spad->flags & MEDIA_PAD_FL_SINK)) | |
85 | continue; | |
1bddf1b3 | 86 | pad = media_entity_remote_pad(spad); |
39bb6df6 SN |
87 | if (pad) |
88 | break; | |
89 | } | |
0f735f52 | 90 | |
0f735f52 SN |
91 | if (pad == NULL || |
92 | media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) | |
93 | break; | |
0f735f52 SN |
94 | sd = media_entity_to_v4l2_subdev(pad->entity); |
95 | ||
96 | switch (sd->grp_id) { | |
588c87be | 97 | case GRP_ID_SENSOR: |
52917bcb SN |
98 | sensor = sd; |
99 | /* fall through */ | |
100 | case GRP_ID_FIMC_IS_SENSOR: | |
0f735f52 SN |
101 | p->subdevs[IDX_SENSOR] = sd; |
102 | break; | |
588c87be | 103 | case GRP_ID_CSIS: |
0f735f52 SN |
104 | p->subdevs[IDX_CSIS] = sd; |
105 | break; | |
588c87be | 106 | case GRP_ID_FLITE: |
4af81310 SN |
107 | p->subdevs[IDX_FLITE] = sd; |
108 | break; | |
588c87be | 109 | case GRP_ID_FIMC: |
52917bcb | 110 | p->subdevs[IDX_FIMC] = sd; |
0f735f52 | 111 | break; |
e781bbe3 SN |
112 | case GRP_ID_FIMC_IS: |
113 | p->subdevs[IDX_IS_ISP] = sd; | |
114 | break; | |
0f735f52 | 115 | default: |
e781bbe3 | 116 | break; |
0f735f52 | 117 | } |
39bb6df6 SN |
118 | me = &sd->entity; |
119 | if (me->num_pads == 1) | |
120 | break; | |
d3953223 | 121 | } |
52917bcb SN |
122 | |
123 | if (sensor && p->subdevs[IDX_FIMC]) | |
124 | __setup_sensor_notification(fmd, sensor, p->subdevs[IDX_FIMC]); | |
d3953223 SN |
125 | } |
126 | ||
127 | /** | |
128 | * __subdev_set_power - change power state of a single subdev | |
129 | * @sd: subdevice to change power state for | |
130 | * @on: 1 to enable power or 0 to disable | |
131 | * | |
132 | * Return result of s_power subdev operation or -ENXIO if sd argument | |
133 | * is NULL. Return 0 if the subdevice does not implement s_power. | |
134 | */ | |
135 | static int __subdev_set_power(struct v4l2_subdev *sd, int on) | |
136 | { | |
137 | int *use_count; | |
138 | int ret; | |
139 | ||
140 | if (sd == NULL) | |
141 | return -ENXIO; | |
142 | ||
143 | use_count = &sd->entity.use_count; | |
144 | if (on && (*use_count)++ > 0) | |
145 | return 0; | |
146 | else if (!on && (*use_count == 0 || --(*use_count) > 0)) | |
147 | return 0; | |
148 | ret = v4l2_subdev_call(sd, core, s_power, on); | |
149 | ||
150 | return ret != -ENOIOCTLCMD ? ret : 0; | |
151 | } | |
152 | ||
153 | /** | |
154 | * fimc_pipeline_s_power - change power state of all pipeline subdevs | |
155 | * @fimc: fimc device terminating the pipeline | |
0f735f52 | 156 | * @state: true to power on, false to power off |
d3953223 | 157 | * |
0f735f52 | 158 | * Needs to be called with the graph mutex held. |
d3953223 | 159 | */ |
f8bca4f5 | 160 | static int fimc_pipeline_s_power(struct fimc_pipeline *p, bool on) |
d3953223 | 161 | { |
f8bca4f5 SN |
162 | static const u8 seq[2][IDX_MAX - 1] = { |
163 | { IDX_IS_ISP, IDX_SENSOR, IDX_CSIS, IDX_FLITE }, | |
164 | { IDX_CSIS, IDX_FLITE, IDX_SENSOR, IDX_IS_ISP }, | |
165 | }; | |
166 | int i, ret = 0; | |
d3953223 | 167 | |
0f735f52 | 168 | if (p->subdevs[IDX_SENSOR] == NULL) |
d3953223 SN |
169 | return -ENXIO; |
170 | ||
f8bca4f5 SN |
171 | for (i = 0; i < IDX_MAX - 1; i++) { |
172 | unsigned int idx = seq[on][i]; | |
173 | ||
174 | ret = __subdev_set_power(p->subdevs[idx], on); | |
175 | ||
0f735f52 | 176 | |
0f735f52 | 177 | if (ret < 0 && ret != -ENXIO) |
f8bca4f5 | 178 | goto error; |
d3953223 | 179 | } |
0f735f52 | 180 | return 0; |
f8bca4f5 SN |
181 | error: |
182 | for (; i >= 0; i--) { | |
183 | unsigned int idx = seq[on][i]; | |
184 | __subdev_set_power(p->subdevs[idx], !on); | |
185 | } | |
186 | return ret; | |
d3953223 SN |
187 | } |
188 | ||
189 | /** | |
b9ee31e6 SN |
190 | * __fimc_pipeline_open - update the pipeline information, enable power |
191 | * of all pipeline subdevs and the sensor clock | |
d3953223 | 192 | * @me: media entity to start graph walk with |
056f4f30 | 193 | * @prepare: true to walk the current pipeline and acquire all subdevs |
d3953223 | 194 | * |
740ad921 | 195 | * Called with the graph mutex held. |
d3953223 | 196 | */ |
403dfbec | 197 | static int __fimc_pipeline_open(struct exynos_media_pipeline *ep, |
056f4f30 | 198 | struct media_entity *me, bool prepare) |
d3953223 | 199 | { |
056f4f30 | 200 | struct fimc_md *fmd = entity_to_fimc_mdev(me); |
403dfbec | 201 | struct fimc_pipeline *p = to_fimc_pipeline(ep); |
056f4f30 | 202 | struct v4l2_subdev *sd; |
d3953223 SN |
203 | int ret; |
204 | ||
056f4f30 SN |
205 | if (WARN_ON(p == NULL || me == NULL)) |
206 | return -EINVAL; | |
207 | ||
208 | if (prepare) | |
0f735f52 SN |
209 | fimc_pipeline_prepare(p, me); |
210 | ||
056f4f30 SN |
211 | sd = p->subdevs[IDX_SENSOR]; |
212 | if (sd == NULL) | |
d3953223 | 213 | return -EINVAL; |
0f735f52 | 214 | |
056f4f30 SN |
215 | /* Disable PXLASYNC clock if this pipeline includes FIMC-IS */ |
216 | if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP]) { | |
217 | ret = clk_prepare_enable(fmd->wbclk[CLK_IDX_WB_B]); | |
218 | if (ret < 0) | |
219 | return ret; | |
220 | } | |
221 | ret = fimc_md_set_camclk(sd, true); | |
222 | if (ret < 0) | |
223 | goto err_wbclk; | |
224 | ||
225 | ret = fimc_pipeline_s_power(p, 1); | |
226 | if (!ret) | |
227 | return 0; | |
0f735f52 | 228 | |
056f4f30 SN |
229 | fimc_md_set_camclk(sd, false); |
230 | ||
231 | err_wbclk: | |
232 | if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP]) | |
233 | clk_disable_unprepare(fmd->wbclk[CLK_IDX_WB_B]); | |
234 | ||
235 | return ret; | |
d3953223 SN |
236 | } |
237 | ||
d3953223 | 238 | /** |
b9ee31e6 | 239 | * __fimc_pipeline_close - disable the sensor clock and pipeline power |
d3953223 SN |
240 | * @fimc: fimc device terminating the pipeline |
241 | * | |
740ad921 | 242 | * Disable power of all subdevs and turn the external sensor clock off. |
d3953223 | 243 | */ |
403dfbec | 244 | static int __fimc_pipeline_close(struct exynos_media_pipeline *ep) |
d3953223 | 245 | { |
403dfbec | 246 | struct fimc_pipeline *p = to_fimc_pipeline(ep); |
056f4f30 SN |
247 | struct v4l2_subdev *sd = p ? p->subdevs[IDX_SENSOR] : NULL; |
248 | struct fimc_md *fmd; | |
36da6fcd | 249 | int ret; |
740ad921 | 250 | |
36da6fcd SN |
251 | if (sd == NULL) { |
252 | pr_warn("%s(): No sensor subdev\n", __func__); | |
253 | return 0; | |
d3953223 | 254 | } |
056f4f30 | 255 | |
36da6fcd SN |
256 | ret = fimc_pipeline_s_power(p, 0); |
257 | fimc_md_set_camclk(sd, false); | |
258 | ||
056f4f30 SN |
259 | fmd = entity_to_fimc_mdev(&sd->entity); |
260 | ||
261 | /* Disable PXLASYNC clock if this pipeline includes FIMC-IS */ | |
262 | if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP]) | |
263 | clk_disable_unprepare(fmd->wbclk[CLK_IDX_WB_B]); | |
264 | ||
d3953223 SN |
265 | return ret == -ENXIO ? 0 : ret; |
266 | } | |
267 | ||
d3953223 | 268 | /** |
8d274e7c | 269 | * __fimc_pipeline_s_stream - call s_stream() on pipeline subdevs |
0f735f52 | 270 | * @pipeline: video pipeline structure |
8d274e7c | 271 | * @on: passed as the s_stream() callback argument |
d3953223 | 272 | */ |
403dfbec | 273 | static int __fimc_pipeline_s_stream(struct exynos_media_pipeline *ep, bool on) |
d3953223 | 274 | { |
8d274e7c SN |
275 | static const u8 seq[2][IDX_MAX] = { |
276 | { IDX_FIMC, IDX_SENSOR, IDX_IS_ISP, IDX_CSIS, IDX_FLITE }, | |
277 | { IDX_CSIS, IDX_FLITE, IDX_FIMC, IDX_SENSOR, IDX_IS_ISP }, | |
278 | }; | |
403dfbec | 279 | struct fimc_pipeline *p = to_fimc_pipeline(ep); |
8d274e7c | 280 | int i, ret = 0; |
d3953223 | 281 | |
0f735f52 | 282 | if (p->subdevs[IDX_SENSOR] == NULL) |
d3953223 SN |
283 | return -ENODEV; |
284 | ||
0f735f52 | 285 | for (i = 0; i < IDX_MAX; i++) { |
8d274e7c | 286 | unsigned int idx = seq[on][i]; |
0f735f52 SN |
287 | |
288 | ret = v4l2_subdev_call(p->subdevs[idx], video, s_stream, on); | |
289 | ||
290 | if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV) | |
8d274e7c | 291 | goto error; |
0f735f52 | 292 | } |
0f735f52 | 293 | return 0; |
8d274e7c SN |
294 | error: |
295 | for (; i >= 0; i--) { | |
296 | unsigned int idx = seq[on][i]; | |
297 | v4l2_subdev_call(p->subdevs[idx], video, s_stream, !on); | |
298 | } | |
299 | return ret; | |
d3953223 | 300 | } |
b9ee31e6 SN |
301 | |
302 | /* Media pipeline operations for the FIMC/FIMC-LITE video device driver */ | |
403dfbec | 303 | static const struct exynos_media_pipeline_ops fimc_pipeline_ops = { |
740ad921 SN |
304 | .open = __fimc_pipeline_open, |
305 | .close = __fimc_pipeline_close, | |
306 | .set_stream = __fimc_pipeline_s_stream, | |
b9ee31e6 | 307 | }; |
d3953223 | 308 | |
403dfbec SN |
309 | static struct exynos_media_pipeline *fimc_md_pipeline_create( |
310 | struct fimc_md *fmd) | |
311 | { | |
312 | struct fimc_pipeline *p; | |
313 | ||
314 | p = kzalloc(sizeof(*p), GFP_KERNEL); | |
315 | if (!p) | |
316 | return NULL; | |
317 | ||
318 | list_add_tail(&p->list, &fmd->pipelines); | |
319 | ||
320 | p->ep.ops = &fimc_pipeline_ops; | |
321 | return &p->ep; | |
322 | } | |
323 | ||
324 | static void fimc_md_pipelines_free(struct fimc_md *fmd) | |
325 | { | |
326 | while (!list_empty(&fmd->pipelines)) { | |
327 | struct fimc_pipeline *p; | |
328 | ||
329 | p = list_entry(fmd->pipelines.next, typeof(*p), list); | |
330 | list_del(&p->list); | |
331 | kfree(p); | |
332 | } | |
333 | } | |
334 | ||
d3953223 SN |
335 | /* |
336 | * Sensor subdevice helper functions | |
337 | */ | |
338 | static struct v4l2_subdev *fimc_md_register_sensor(struct fimc_md *fmd, | |
4c8f0629 | 339 | struct fimc_source_info *si) |
d3953223 SN |
340 | { |
341 | struct i2c_adapter *adapter; | |
342 | struct v4l2_subdev *sd = NULL; | |
343 | ||
4c8f0629 | 344 | if (!si || !fmd) |
d3953223 | 345 | return NULL; |
88fa8311 SN |
346 | /* |
347 | * If FIMC bus type is not Writeback FIFO assume it is same | |
348 | * as sensor_bus_type. | |
349 | */ | |
4c8f0629 | 350 | si->fimc_bus_type = si->sensor_bus_type; |
d3953223 | 351 | |
4c8f0629 | 352 | adapter = i2c_get_adapter(si->i2c_bus_num); |
ecd9acbf SN |
353 | if (!adapter) { |
354 | v4l2_warn(&fmd->v4l2_dev, | |
355 | "Failed to get I2C adapter %d, deferring probe\n", | |
4c8f0629 | 356 | si->i2c_bus_num); |
ecd9acbf SN |
357 | return ERR_PTR(-EPROBE_DEFER); |
358 | } | |
d3953223 | 359 | sd = v4l2_i2c_new_subdev_board(&fmd->v4l2_dev, adapter, |
4c8f0629 | 360 | si->board_info, NULL); |
d3953223 | 361 | if (IS_ERR_OR_NULL(sd)) { |
7acde02a | 362 | i2c_put_adapter(adapter); |
ecd9acbf SN |
363 | v4l2_warn(&fmd->v4l2_dev, |
364 | "Failed to acquire subdev %s, deferring probe\n", | |
4c8f0629 | 365 | si->board_info->type); |
ecd9acbf | 366 | return ERR_PTR(-EPROBE_DEFER); |
d3953223 | 367 | } |
4c8f0629 | 368 | v4l2_set_subdev_hostdata(sd, si); |
588c87be | 369 | sd->grp_id = GRP_ID_SENSOR; |
d3953223 SN |
370 | |
371 | v4l2_info(&fmd->v4l2_dev, "Registered sensor subdevice %s\n", | |
2b13f7d4 | 372 | sd->name); |
d3953223 SN |
373 | return sd; |
374 | } | |
375 | ||
376 | static void fimc_md_unregister_sensor(struct v4l2_subdev *sd) | |
377 | { | |
378 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
7acde02a | 379 | struct i2c_adapter *adapter; |
d3953223 SN |
380 | |
381 | if (!client) | |
382 | return; | |
e781bbe3 | 383 | |
d3953223 | 384 | v4l2_device_unregister_subdev(sd); |
2b13f7d4 SN |
385 | |
386 | if (!client->dev.of_node) { | |
387 | adapter = client->adapter; | |
388 | i2c_unregister_device(client); | |
389 | if (adapter) | |
390 | i2c_put_adapter(adapter); | |
391 | } | |
d3953223 SN |
392 | } |
393 | ||
e2985a26 | 394 | #ifdef CONFIG_OF |
2b13f7d4 SN |
395 | /* Register I2C client subdev associated with @node. */ |
396 | static int fimc_md_of_add_sensor(struct fimc_md *fmd, | |
397 | struct device_node *node, int index) | |
398 | { | |
399 | struct fimc_sensor_info *si; | |
400 | struct i2c_client *client; | |
401 | struct v4l2_subdev *sd; | |
402 | int ret; | |
403 | ||
404 | if (WARN_ON(index >= ARRAY_SIZE(fmd->sensor))) | |
405 | return -EINVAL; | |
406 | si = &fmd->sensor[index]; | |
407 | ||
408 | client = of_find_i2c_device_by_node(node); | |
409 | if (!client) | |
410 | return -EPROBE_DEFER; | |
411 | ||
412 | device_lock(&client->dev); | |
413 | ||
c7110f37 LPC |
414 | if (!client->dev.driver || |
415 | !try_module_get(client->dev.driver->owner)) { | |
2b13f7d4 SN |
416 | ret = -EPROBE_DEFER; |
417 | v4l2_info(&fmd->v4l2_dev, "No driver found for %s\n", | |
418 | node->full_name); | |
419 | goto dev_put; | |
420 | } | |
421 | ||
422 | /* Enable sensor's master clock */ | |
4c8f0629 | 423 | ret = __fimc_md_set_camclk(fmd, &si->pdata, true); |
2b13f7d4 SN |
424 | if (ret < 0) |
425 | goto mod_put; | |
426 | sd = i2c_get_clientdata(client); | |
427 | ||
428 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); | |
4c8f0629 | 429 | __fimc_md_set_camclk(fmd, &si->pdata, false); |
2b13f7d4 SN |
430 | if (ret < 0) |
431 | goto mod_put; | |
432 | ||
4c8f0629 | 433 | v4l2_set_subdev_hostdata(sd, &si->pdata); |
e781bbe3 SN |
434 | if (si->pdata.fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) |
435 | sd->grp_id = GRP_ID_FIMC_IS_SENSOR; | |
436 | else | |
437 | sd->grp_id = GRP_ID_SENSOR; | |
438 | ||
2b13f7d4 SN |
439 | si->subdev = sd; |
440 | v4l2_info(&fmd->v4l2_dev, "Registered sensor subdevice: %s (%d)\n", | |
441 | sd->name, fmd->num_sensors); | |
442 | fmd->num_sensors++; | |
443 | ||
444 | mod_put: | |
c7110f37 | 445 | module_put(client->dev.driver->owner); |
2b13f7d4 SN |
446 | dev_put: |
447 | device_unlock(&client->dev); | |
448 | put_device(&client->dev); | |
449 | return ret; | |
450 | } | |
451 | ||
452 | /* Parse port node and register as a sub-device any sensor specified there. */ | |
453 | static int fimc_md_parse_port_node(struct fimc_md *fmd, | |
454 | struct device_node *port, | |
455 | unsigned int index) | |
456 | { | |
457 | struct device_node *rem, *ep, *np; | |
458 | struct fimc_source_info *pd; | |
459 | struct v4l2_of_endpoint endpoint; | |
460 | int ret; | |
461 | u32 val; | |
462 | ||
463 | pd = &fmd->sensor[index].pdata; | |
464 | ||
465 | /* Assume here a port node can have only one endpoint node. */ | |
466 | ep = of_get_next_child(port, NULL); | |
467 | if (!ep) | |
468 | return 0; | |
469 | ||
470 | v4l2_of_parse_endpoint(ep, &endpoint); | |
471 | if (WARN_ON(endpoint.port == 0) || index >= FIMC_MAX_SENSORS) | |
472 | return -EINVAL; | |
473 | ||
474 | pd->mux_id = (endpoint.port - 1) & 0x1; | |
475 | ||
476 | rem = v4l2_of_get_remote_port_parent(ep); | |
477 | of_node_put(ep); | |
478 | if (rem == NULL) { | |
479 | v4l2_info(&fmd->v4l2_dev, "Remote device at %s not found\n", | |
480 | ep->full_name); | |
481 | return 0; | |
482 | } | |
483 | if (!of_property_read_u32(rem, "samsung,camclk-out", &val)) | |
484 | pd->clk_id = val; | |
485 | ||
486 | if (!of_property_read_u32(rem, "clock-frequency", &val)) | |
487 | pd->clk_frequency = val; | |
488 | ||
489 | if (pd->clk_frequency == 0) { | |
490 | v4l2_err(&fmd->v4l2_dev, "Wrong clock frequency at node %s\n", | |
491 | rem->full_name); | |
492 | of_node_put(rem); | |
493 | return -EINVAL; | |
494 | } | |
495 | ||
496 | if (fimc_input_is_parallel(endpoint.port)) { | |
497 | if (endpoint.bus_type == V4L2_MBUS_PARALLEL) | |
498 | pd->sensor_bus_type = FIMC_BUS_TYPE_ITU_601; | |
499 | else | |
500 | pd->sensor_bus_type = FIMC_BUS_TYPE_ITU_656; | |
501 | pd->flags = endpoint.bus.parallel.flags; | |
502 | } else if (fimc_input_is_mipi_csi(endpoint.port)) { | |
503 | /* | |
504 | * MIPI CSI-2: only input mux selection and | |
505 | * the sensor's clock frequency is needed. | |
506 | */ | |
507 | pd->sensor_bus_type = FIMC_BUS_TYPE_MIPI_CSI2; | |
508 | } else { | |
509 | v4l2_err(&fmd->v4l2_dev, "Wrong port id (%u) at node %s\n", | |
510 | endpoint.port, rem->full_name); | |
511 | } | |
512 | /* | |
513 | * For FIMC-IS handled sensors, that are placed under i2c-isp device | |
514 | * node, FIMC is connected to the FIMC-IS through its ISP Writeback | |
515 | * input. Sensors are attached to the FIMC-LITE hostdata interface | |
516 | * directly or through MIPI-CSIS, depending on the external media bus | |
517 | * used. This needs to be handled in a more reliable way, not by just | |
518 | * checking parent's node name. | |
519 | */ | |
520 | np = of_get_parent(rem); | |
521 | ||
522 | if (np && !of_node_cmp(np->name, "i2c-isp")) | |
523 | pd->fimc_bus_type = FIMC_BUS_TYPE_ISP_WRITEBACK; | |
524 | else | |
525 | pd->fimc_bus_type = pd->sensor_bus_type; | |
526 | ||
527 | ret = fimc_md_of_add_sensor(fmd, rem, index); | |
528 | of_node_put(rem); | |
529 | ||
530 | return ret; | |
531 | } | |
532 | ||
533 | /* Register all SoC external sub-devices */ | |
534 | static int fimc_md_of_sensors_register(struct fimc_md *fmd, | |
535 | struct device_node *np) | |
536 | { | |
537 | struct device_node *parent = fmd->pdev->dev.of_node; | |
538 | struct device_node *node, *ports; | |
539 | int index = 0; | |
540 | int ret; | |
541 | ||
542 | /* Attach sensors linked to MIPI CSI-2 receivers */ | |
543 | for_each_available_child_of_node(parent, node) { | |
544 | struct device_node *port; | |
545 | ||
546 | if (of_node_cmp(node->name, "csis")) | |
547 | continue; | |
548 | /* The csis node can have only port subnode. */ | |
549 | port = of_get_next_child(node, NULL); | |
550 | if (!port) | |
551 | continue; | |
552 | ||
553 | ret = fimc_md_parse_port_node(fmd, port, index); | |
554 | if (ret < 0) | |
555 | return ret; | |
556 | index++; | |
557 | } | |
558 | ||
559 | /* Attach sensors listed in the parallel-ports node */ | |
560 | ports = of_get_child_by_name(parent, "parallel-ports"); | |
561 | if (!ports) | |
562 | return 0; | |
563 | ||
564 | for_each_child_of_node(ports, node) { | |
565 | ret = fimc_md_parse_port_node(fmd, node, index); | |
566 | if (ret < 0) | |
567 | break; | |
568 | index++; | |
569 | } | |
570 | ||
571 | return 0; | |
572 | } | |
573 | ||
e2985a26 SN |
574 | static int __of_get_csis_id(struct device_node *np) |
575 | { | |
576 | u32 reg = 0; | |
577 | ||
578 | np = of_get_child_by_name(np, "port"); | |
579 | if (!np) | |
580 | return -EINVAL; | |
581 | of_property_read_u32(np, "reg", ®); | |
582 | return reg - FIMC_INPUT_MIPI_CSI2_0; | |
583 | } | |
584 | #else | |
2b13f7d4 | 585 | #define fimc_md_of_sensors_register(fmd, np) (-ENOSYS) |
e2985a26 SN |
586 | #define __of_get_csis_id(np) (-ENOSYS) |
587 | #endif | |
588 | ||
d3953223 SN |
589 | static int fimc_md_register_sensor_entities(struct fimc_md *fmd) |
590 | { | |
591 | struct s5p_platform_fimc *pdata = fmd->pdev->dev.platform_data; | |
2b13f7d4 | 592 | struct device_node *of_node = fmd->pdev->dev.of_node; |
2b13f7d4 SN |
593 | int num_clients = 0; |
594 | int ret, i; | |
d3953223 SN |
595 | |
596 | /* | |
597 | * Runtime resume one of the FIMC entities to make sure | |
598 | * the sclk_cam clocks are not globally disabled. | |
599 | */ | |
3e20c345 | 600 | if (!fmd->pmf) |
d3953223 | 601 | return -ENXIO; |
2b13f7d4 | 602 | |
3e20c345 | 603 | ret = pm_runtime_get_sync(fmd->pmf); |
d3953223 SN |
604 | if (ret < 0) |
605 | return ret; | |
606 | ||
2b13f7d4 SN |
607 | if (of_node) { |
608 | fmd->num_sensors = 0; | |
609 | ret = fimc_md_of_sensors_register(fmd, of_node); | |
610 | } else if (pdata) { | |
611 | WARN_ON(pdata->num_clients > ARRAY_SIZE(fmd->sensor)); | |
612 | num_clients = min_t(u32, pdata->num_clients, | |
613 | ARRAY_SIZE(fmd->sensor)); | |
614 | fmd->num_sensors = num_clients; | |
d3953223 | 615 | |
2b13f7d4 | 616 | for (i = 0; i < num_clients; i++) { |
4c8f0629 | 617 | struct fimc_sensor_info *si = &fmd->sensor[i]; |
2b13f7d4 | 618 | struct v4l2_subdev *sd; |
ecd9acbf | 619 | |
4c8f0629 SN |
620 | si->pdata = pdata->source_info[i]; |
621 | ret = __fimc_md_set_camclk(fmd, &si->pdata, true); | |
2b13f7d4 SN |
622 | if (ret) |
623 | break; | |
4c8f0629 SN |
624 | sd = fimc_md_register_sensor(fmd, &si->pdata); |
625 | ret = __fimc_md_set_camclk(fmd, &si->pdata, false); | |
2b13f7d4 SN |
626 | |
627 | if (IS_ERR(sd)) { | |
4c8f0629 | 628 | si->subdev = NULL; |
2b13f7d4 SN |
629 | ret = PTR_ERR(sd); |
630 | break; | |
631 | } | |
4c8f0629 | 632 | si->subdev = sd; |
2b13f7d4 SN |
633 | if (ret) |
634 | break; | |
ecd9acbf | 635 | } |
d3953223 | 636 | } |
2b13f7d4 | 637 | |
3e20c345 | 638 | pm_runtime_put(fmd->pmf); |
d3953223 SN |
639 | return ret; |
640 | } | |
641 | ||
642 | /* | |
7b43a6f3 | 643 | * MIPI-CSIS, FIMC and FIMC-LITE platform devices registration. |
d3953223 | 644 | */ |
7b43a6f3 SN |
645 | |
646 | static int register_fimc_lite_entity(struct fimc_md *fmd, | |
647 | struct fimc_lite *fimc_lite) | |
d3953223 | 648 | { |
8163ec0b | 649 | struct v4l2_subdev *sd; |
403dfbec | 650 | struct exynos_media_pipeline *ep; |
afd7348c | 651 | int ret; |
4af81310 | 652 | |
7b43a6f3 SN |
653 | if (WARN_ON(fimc_lite->index >= FIMC_LITE_MAX_DEVS || |
654 | fmd->fimc_lite[fimc_lite->index])) | |
655 | return -EBUSY; | |
d3953223 | 656 | |
7b43a6f3 SN |
657 | sd = &fimc_lite->subdev; |
658 | sd->grp_id = GRP_ID_FLITE; | |
403dfbec SN |
659 | |
660 | ep = fimc_md_pipeline_create(fmd); | |
661 | if (!ep) | |
662 | return -ENOMEM; | |
663 | ||
664 | v4l2_set_subdev_hostdata(sd, ep); | |
693f5c40 SN |
665 | |
666 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); | |
7b43a6f3 SN |
667 | if (!ret) |
668 | fmd->fimc_lite[fimc_lite->index] = fimc_lite; | |
669 | else | |
670 | v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.LITE%d\n", | |
671 | fimc_lite->index); | |
672 | return ret; | |
d3953223 SN |
673 | } |
674 | ||
7b43a6f3 | 675 | static int register_fimc_entity(struct fimc_md *fmd, struct fimc_dev *fimc) |
4af81310 | 676 | { |
7b43a6f3 | 677 | struct v4l2_subdev *sd; |
403dfbec | 678 | struct exynos_media_pipeline *ep; |
4af81310 SN |
679 | int ret; |
680 | ||
7b43a6f3 SN |
681 | if (WARN_ON(fimc->id >= FIMC_MAX_DEVS || fmd->fimc[fimc->id])) |
682 | return -EBUSY; | |
4af81310 | 683 | |
7b43a6f3 SN |
684 | sd = &fimc->vid_cap.subdev; |
685 | sd->grp_id = GRP_ID_FIMC; | |
403dfbec SN |
686 | |
687 | ep = fimc_md_pipeline_create(fmd); | |
688 | if (!ep) | |
689 | return -ENOMEM; | |
690 | ||
691 | v4l2_set_subdev_hostdata(sd, ep); | |
4af81310 | 692 | |
7b43a6f3 SN |
693 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); |
694 | if (!ret) { | |
3e20c345 SN |
695 | if (!fmd->pmf && fimc->pdev) |
696 | fmd->pmf = &fimc->pdev->dev; | |
7b43a6f3 SN |
697 | fmd->fimc[fimc->id] = fimc; |
698 | fimc->vid_cap.user_subdev_api = fmd->user_subdev_api; | |
699 | } else { | |
700 | v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.%d (%d)\n", | |
701 | fimc->id, ret); | |
4af81310 | 702 | } |
7b43a6f3 | 703 | return ret; |
4af81310 SN |
704 | } |
705 | ||
7b43a6f3 SN |
706 | static int register_csis_entity(struct fimc_md *fmd, |
707 | struct platform_device *pdev, | |
708 | struct v4l2_subdev *sd) | |
d3953223 | 709 | { |
7b43a6f3 | 710 | struct device_node *node = pdev->dev.of_node; |
d3953223 SN |
711 | int id, ret; |
712 | ||
e2985a26 | 713 | id = node ? __of_get_csis_id(node) : max(0, pdev->id); |
7b43a6f3 | 714 | |
e2985a26 SN |
715 | if (WARN_ON(id < 0 || id >= CSIS_MAX_ENTITIES)) |
716 | return -ENOENT; | |
7b43a6f3 | 717 | |
e2985a26 SN |
718 | if (WARN_ON(fmd->csis[id].sd)) |
719 | return -EBUSY; | |
d3953223 | 720 | |
588c87be | 721 | sd->grp_id = GRP_ID_CSIS; |
d3953223 | 722 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); |
afd7348c SN |
723 | if (!ret) |
724 | fmd->csis[id].sd = sd; | |
725 | else | |
d3953223 | 726 | v4l2_err(&fmd->v4l2_dev, |
7b43a6f3 | 727 | "Failed to register MIPI-CSIS.%d (%d)\n", id, ret); |
d3953223 SN |
728 | return ret; |
729 | } | |
730 | ||
e781bbe3 SN |
731 | static int register_fimc_is_entity(struct fimc_md *fmd, struct fimc_is *is) |
732 | { | |
733 | struct v4l2_subdev *sd = &is->isp.subdev; | |
734 | int ret; | |
735 | ||
736 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); | |
737 | if (ret) { | |
738 | v4l2_err(&fmd->v4l2_dev, | |
739 | "Failed to register FIMC-ISP (%d)\n", ret); | |
740 | return ret; | |
741 | } | |
742 | ||
743 | fmd->fimc_is = is; | |
744 | return 0; | |
745 | } | |
746 | ||
7b43a6f3 SN |
747 | static int fimc_md_register_platform_entity(struct fimc_md *fmd, |
748 | struct platform_device *pdev, | |
749 | int plat_entity) | |
d3953223 | 750 | { |
7b43a6f3 SN |
751 | struct device *dev = &pdev->dev; |
752 | int ret = -EPROBE_DEFER; | |
753 | void *drvdata; | |
754 | ||
755 | /* Lock to ensure dev->driver won't change. */ | |
756 | device_lock(dev); | |
757 | ||
758 | if (!dev->driver || !try_module_get(dev->driver->owner)) | |
759 | goto dev_unlock; | |
760 | ||
761 | drvdata = dev_get_drvdata(dev); | |
f58c91ce | 762 | /* Some subdev didn't probe successfully id drvdata is NULL */ |
7b43a6f3 SN |
763 | if (drvdata) { |
764 | switch (plat_entity) { | |
765 | case IDX_FIMC: | |
766 | ret = register_fimc_entity(fmd, drvdata); | |
767 | break; | |
768 | case IDX_FLITE: | |
769 | ret = register_fimc_lite_entity(fmd, drvdata); | |
ecd9acbf | 770 | break; |
7b43a6f3 SN |
771 | case IDX_CSIS: |
772 | ret = register_csis_entity(fmd, pdev, drvdata); | |
773 | break; | |
e781bbe3 SN |
774 | case IDX_IS_ISP: |
775 | ret = register_fimc_is_entity(fmd, drvdata); | |
776 | break; | |
7b43a6f3 SN |
777 | default: |
778 | ret = -ENODEV; | |
ecd9acbf SN |
779 | } |
780 | } | |
d3953223 | 781 | |
7b43a6f3 SN |
782 | module_put(dev->driver->owner); |
783 | dev_unlock: | |
784 | device_unlock(dev); | |
785 | if (ret == -EPROBE_DEFER) | |
786 | dev_info(&fmd->pdev->dev, "deferring %s device registration\n", | |
787 | dev_name(dev)); | |
788 | else if (ret < 0) | |
789 | dev_err(&fmd->pdev->dev, "%s device registration failed (%d)\n", | |
790 | dev_name(dev), ret); | |
791 | return ret; | |
792 | } | |
793 | ||
794 | static int fimc_md_pdev_match(struct device *dev, void *data) | |
795 | { | |
796 | struct platform_device *pdev = to_platform_device(dev); | |
797 | int plat_entity = -1; | |
798 | int ret; | |
799 | char *p; | |
800 | ||
801 | if (!get_device(dev)) | |
802 | return -ENODEV; | |
803 | ||
804 | if (!strcmp(pdev->name, CSIS_DRIVER_NAME)) { | |
805 | plat_entity = IDX_CSIS; | |
7b43a6f3 SN |
806 | } else { |
807 | p = strstr(pdev->name, "fimc"); | |
808 | if (p && *(p + 4) == 0) | |
809 | plat_entity = IDX_FIMC; | |
ecd9acbf SN |
810 | } |
811 | ||
7b43a6f3 SN |
812 | if (plat_entity >= 0) |
813 | ret = fimc_md_register_platform_entity(data, pdev, | |
814 | plat_entity); | |
815 | put_device(dev); | |
816 | return 0; | |
d3953223 SN |
817 | } |
818 | ||
e2985a26 SN |
819 | /* Register FIMC, FIMC-LITE and CSIS media entities */ |
820 | #ifdef CONFIG_OF | |
821 | static int fimc_md_register_of_platform_entities(struct fimc_md *fmd, | |
822 | struct device_node *parent) | |
823 | { | |
824 | struct device_node *node; | |
825 | int ret = 0; | |
826 | ||
827 | for_each_available_child_of_node(parent, node) { | |
828 | struct platform_device *pdev; | |
829 | int plat_entity = -1; | |
830 | ||
831 | pdev = of_find_device_by_node(node); | |
832 | if (!pdev) | |
833 | continue; | |
834 | ||
835 | /* If driver of any entity isn't ready try all again later. */ | |
836 | if (!strcmp(node->name, CSIS_OF_NODE_NAME)) | |
837 | plat_entity = IDX_CSIS; | |
e781bbe3 SN |
838 | else if (!strcmp(node->name, FIMC_IS_OF_NODE_NAME)) |
839 | plat_entity = IDX_IS_ISP; | |
e2985a26 SN |
840 | else if (!strcmp(node->name, FIMC_LITE_OF_NODE_NAME)) |
841 | plat_entity = IDX_FLITE; | |
842 | else if (!strcmp(node->name, FIMC_OF_NODE_NAME) && | |
843 | !of_property_read_bool(node, "samsung,lcd-wb")) | |
844 | plat_entity = IDX_FIMC; | |
845 | ||
846 | if (plat_entity >= 0) | |
847 | ret = fimc_md_register_platform_entity(fmd, pdev, | |
848 | plat_entity); | |
849 | put_device(&pdev->dev); | |
850 | if (ret < 0) | |
851 | break; | |
852 | } | |
853 | ||
854 | return ret; | |
855 | } | |
856 | #else | |
857 | #define fimc_md_register_of_platform_entities(fmd, node) (-ENOSYS) | |
858 | #endif | |
859 | ||
d3953223 SN |
860 | static void fimc_md_unregister_entities(struct fimc_md *fmd) |
861 | { | |
862 | int i; | |
863 | ||
864 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
403dfbec SN |
865 | struct fimc_dev *dev = fmd->fimc[i]; |
866 | if (dev == NULL) | |
d3953223 | 867 | continue; |
403dfbec SN |
868 | v4l2_device_unregister_subdev(&dev->vid_cap.subdev); |
869 | dev->vid_cap.ve.pipe = NULL; | |
d3953223 SN |
870 | fmd->fimc[i] = NULL; |
871 | } | |
4af81310 | 872 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { |
403dfbec SN |
873 | struct fimc_lite *dev = fmd->fimc_lite[i]; |
874 | if (dev == NULL) | |
4af81310 | 875 | continue; |
403dfbec SN |
876 | v4l2_device_unregister_subdev(&dev->subdev); |
877 | dev->ve.pipe = NULL; | |
4af81310 SN |
878 | fmd->fimc_lite[i] = NULL; |
879 | } | |
d3953223 SN |
880 | for (i = 0; i < CSIS_MAX_ENTITIES; i++) { |
881 | if (fmd->csis[i].sd == NULL) | |
882 | continue; | |
883 | v4l2_device_unregister_subdev(fmd->csis[i].sd); | |
884 | fmd->csis[i].sd = NULL; | |
885 | } | |
886 | for (i = 0; i < fmd->num_sensors; i++) { | |
887 | if (fmd->sensor[i].subdev == NULL) | |
888 | continue; | |
889 | fimc_md_unregister_sensor(fmd->sensor[i].subdev); | |
890 | fmd->sensor[i].subdev = NULL; | |
891 | } | |
e41a35cb SN |
892 | |
893 | if (fmd->fimc_is) | |
894 | v4l2_device_unregister_subdev(&fmd->fimc_is->isp.subdev); | |
895 | ||
7b43a6f3 | 896 | v4l2_info(&fmd->v4l2_dev, "Unregistered all entities\n"); |
d3953223 SN |
897 | } |
898 | ||
d3953223 SN |
899 | /** |
900 | * __fimc_md_create_fimc_links - create links to all FIMC entities | |
901 | * @fmd: fimc media device | |
902 | * @source: the source entity to create links to all fimc entities from | |
903 | * @sensor: sensor subdev linked to FIMC[fimc_id] entity, may be null | |
904 | * @pad: the source entity pad index | |
d0da3c35 | 905 | * @link_mask: bitmask of the fimc devices for which link should be enabled |
d3953223 | 906 | */ |
4af81310 SN |
907 | static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, |
908 | struct media_entity *source, | |
909 | struct v4l2_subdev *sensor, | |
d0da3c35 | 910 | int pad, int link_mask) |
d3953223 | 911 | { |
4c8f0629 | 912 | struct fimc_source_info *si = NULL; |
d3953223 | 913 | struct media_entity *sink; |
4af81310 | 914 | unsigned int flags = 0; |
f998bb7b | 915 | int i, ret = 0; |
d3953223 | 916 | |
f998bb7b SN |
917 | if (sensor) { |
918 | si = v4l2_get_subdev_hostdata(sensor); | |
919 | /* Skip direct FIMC links in the logical FIMC-IS sensor path */ | |
4c8f0629 | 920 | if (si && si->fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) |
f998bb7b SN |
921 | ret = 1; |
922 | } | |
923 | ||
924 | for (i = 0; !ret && i < FIMC_MAX_DEVS; i++) { | |
d3953223 | 925 | if (!fmd->fimc[i]) |
4af81310 | 926 | continue; |
d3953223 SN |
927 | /* |
928 | * Some FIMC variants are not fitted with camera capture | |
929 | * interface. Skip creating a link from sensor for those. | |
930 | */ | |
4af81310 | 931 | if (!fmd->fimc[i]->variant->has_cam_if) |
d3953223 SN |
932 | continue; |
933 | ||
d0da3c35 | 934 | flags = ((1 << i) & link_mask) ? MEDIA_LNK_FL_ENABLED : 0; |
4af81310 | 935 | |
693f5c40 | 936 | sink = &fmd->fimc[i]->vid_cap.subdev.entity; |
237e0265 | 937 | ret = media_entity_create_link(source, pad, sink, |
88fa8311 | 938 | FIMC_SD_PAD_SINK_CAM, flags); |
d3953223 SN |
939 | if (ret) |
940 | return ret; | |
941 | ||
237e0265 SN |
942 | /* Notify FIMC capture subdev entity */ |
943 | ret = media_entity_call(sink, link_setup, &sink->pads[0], | |
944 | &source->pads[pad], flags); | |
945 | if (ret) | |
946 | break; | |
947 | ||
542fb082 | 948 | v4l2_info(&fmd->v4l2_dev, "created link [%s] %c> [%s]\n", |
d3953223 | 949 | source->name, flags ? '=' : '-', sink->name); |
d3953223 | 950 | } |
4af81310 SN |
951 | |
952 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { | |
953 | if (!fmd->fimc_lite[i]) | |
954 | continue; | |
955 | ||
4af81310 SN |
956 | sink = &fmd->fimc_lite[i]->subdev.entity; |
957 | ret = media_entity_create_link(source, pad, sink, | |
f998bb7b | 958 | FLITE_SD_PAD_SINK, 0); |
4af81310 SN |
959 | if (ret) |
960 | return ret; | |
961 | ||
962 | /* Notify FIMC-LITE subdev entity */ | |
963 | ret = media_entity_call(sink, link_setup, &sink->pads[0], | |
f998bb7b | 964 | &source->pads[pad], 0); |
4af81310 SN |
965 | if (ret) |
966 | break; | |
967 | ||
f998bb7b SN |
968 | v4l2_info(&fmd->v4l2_dev, "created link [%s] -> [%s]\n", |
969 | source->name, sink->name); | |
4af81310 | 970 | } |
d3953223 SN |
971 | return 0; |
972 | } | |
973 | ||
4af81310 SN |
974 | /* Create links from FIMC-LITE source pads to other entities */ |
975 | static int __fimc_md_create_flite_source_links(struct fimc_md *fmd) | |
976 | { | |
977 | struct media_entity *source, *sink; | |
a26860bd | 978 | int i, ret = 0; |
4af81310 SN |
979 | |
980 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { | |
981 | struct fimc_lite *fimc = fmd->fimc_lite[i]; | |
f998bb7b | 982 | |
4af81310 SN |
983 | if (fimc == NULL) |
984 | continue; | |
f998bb7b | 985 | |
4af81310 | 986 | source = &fimc->subdev.entity; |
bc7584b0 | 987 | sink = &fimc->ve.vdev.entity; |
4af81310 | 988 | /* FIMC-LITE's subdev and video node */ |
6319d6a0 | 989 | ret = media_entity_create_link(source, FLITE_SD_PAD_SOURCE_DMA, |
f998bb7b SN |
990 | sink, 0, 0); |
991 | if (ret) | |
992 | break; | |
993 | /* Link from FIMC-LITE to IS-ISP subdev */ | |
994 | sink = &fmd->fimc_is->isp.subdev.entity; | |
995 | ret = media_entity_create_link(source, FLITE_SD_PAD_SOURCE_ISP, | |
996 | sink, 0, 0); | |
4af81310 SN |
997 | if (ret) |
998 | break; | |
f998bb7b SN |
999 | } |
1000 | ||
1001 | return ret; | |
1002 | } | |
1003 | ||
1004 | /* Create FIMC-IS links */ | |
1005 | static int __fimc_md_create_fimc_is_links(struct fimc_md *fmd) | |
1006 | { | |
1007 | struct media_entity *source, *sink; | |
1008 | int i, ret; | |
1009 | ||
1010 | source = &fmd->fimc_is->isp.subdev.entity; | |
1011 | ||
1012 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
1013 | if (fmd->fimc[i] == NULL) | |
1014 | continue; | |
1015 | ||
1016 | /* Link from IS-ISP subdev to FIMC */ | |
1017 | sink = &fmd->fimc[i]->vid_cap.subdev.entity; | |
1018 | ret = media_entity_create_link(source, FIMC_ISP_SD_PAD_SRC_FIFO, | |
1019 | sink, FIMC_SD_PAD_SINK_FIFO, 0); | |
1020 | if (ret) | |
1021 | return ret; | |
4af81310 SN |
1022 | } |
1023 | ||
1024 | return ret; | |
1025 | } | |
1026 | ||
d3953223 SN |
1027 | /** |
1028 | * fimc_md_create_links - create default links between registered entities | |
1029 | * | |
1030 | * Parallel interface sensor entities are connected directly to FIMC capture | |
1031 | * entities. The sensors using MIPI CSIS bus are connected through immutable | |
1032 | * link with CSI receiver entity specified by mux_id. Any registered CSIS | |
1033 | * entity has a link to each registered FIMC capture entity. Enabled links | |
1034 | * are created by default between each subsequent registered sensor and | |
1035 | * subsequent FIMC capture entity. The number of default active links is | |
1036 | * determined by the number of available sensors or FIMC entities, | |
1037 | * whichever is less. | |
1038 | */ | |
1039 | static int fimc_md_create_links(struct fimc_md *fmd) | |
1040 | { | |
a8697ec8 | 1041 | struct v4l2_subdev *csi_sensors[CSIS_MAX_ENTITIES] = { NULL }; |
d3953223 | 1042 | struct v4l2_subdev *sensor, *csis; |
56bc911a | 1043 | struct fimc_source_info *pdata; |
237e0265 | 1044 | struct media_entity *source, *sink; |
d0da3c35 SN |
1045 | int i, pad, fimc_id = 0, ret = 0; |
1046 | u32 flags, link_mask = 0; | |
d3953223 SN |
1047 | |
1048 | for (i = 0; i < fmd->num_sensors; i++) { | |
1049 | if (fmd->sensor[i].subdev == NULL) | |
1050 | continue; | |
1051 | ||
1052 | sensor = fmd->sensor[i].subdev; | |
4c8f0629 SN |
1053 | pdata = v4l2_get_subdev_hostdata(sensor); |
1054 | if (!pdata) | |
d3953223 SN |
1055 | continue; |
1056 | ||
1057 | source = NULL; | |
d3953223 | 1058 | |
56bc911a SN |
1059 | switch (pdata->sensor_bus_type) { |
1060 | case FIMC_BUS_TYPE_MIPI_CSI2: | |
d3953223 SN |
1061 | if (WARN(pdata->mux_id >= CSIS_MAX_ENTITIES, |
1062 | "Wrong CSI channel id: %d\n", pdata->mux_id)) | |
1063 | return -EINVAL; | |
1064 | ||
1065 | csis = fmd->csis[pdata->mux_id].sd; | |
1066 | if (WARN(csis == NULL, | |
1067 | "MIPI-CSI interface specified " | |
1068 | "but s5p-csis module is not loaded!\n")) | |
d12392ec | 1069 | return -EINVAL; |
d3953223 | 1070 | |
1c9f5bd7 AH |
1071 | pad = sensor->entity.num_pads - 1; |
1072 | ret = media_entity_create_link(&sensor->entity, pad, | |
d3953223 SN |
1073 | &csis->entity, CSIS_PAD_SINK, |
1074 | MEDIA_LNK_FL_IMMUTABLE | | |
1075 | MEDIA_LNK_FL_ENABLED); | |
1076 | if (ret) | |
1077 | return ret; | |
1078 | ||
969e877c | 1079 | v4l2_info(&fmd->v4l2_dev, "created link [%s] => [%s]\n", |
d3953223 SN |
1080 | sensor->entity.name, csis->entity.name); |
1081 | ||
4af81310 | 1082 | source = NULL; |
5d33ee92 | 1083 | csi_sensors[pdata->mux_id] = sensor; |
d3953223 SN |
1084 | break; |
1085 | ||
56bc911a | 1086 | case FIMC_BUS_TYPE_ITU_601...FIMC_BUS_TYPE_ITU_656: |
d3953223 SN |
1087 | source = &sensor->entity; |
1088 | pad = 0; | |
1089 | break; | |
1090 | ||
1091 | default: | |
1092 | v4l2_err(&fmd->v4l2_dev, "Wrong bus_type: %x\n", | |
56bc911a | 1093 | pdata->sensor_bus_type); |
d3953223 SN |
1094 | return -EINVAL; |
1095 | } | |
1096 | if (source == NULL) | |
1097 | continue; | |
1098 | ||
d0da3c35 | 1099 | link_mask = 1 << fimc_id++; |
4af81310 | 1100 | ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor, |
d0da3c35 | 1101 | pad, link_mask); |
4af81310 SN |
1102 | } |
1103 | ||
a8697ec8 | 1104 | for (i = 0; i < CSIS_MAX_ENTITIES; i++) { |
4af81310 SN |
1105 | if (fmd->csis[i].sd == NULL) |
1106 | continue; | |
f998bb7b | 1107 | |
4af81310 SN |
1108 | source = &fmd->csis[i].sd->entity; |
1109 | pad = CSIS_PAD_SOURCE; | |
5d33ee92 | 1110 | sensor = csi_sensors[i]; |
4af81310 | 1111 | |
d0da3c35 | 1112 | link_mask = 1 << fimc_id++; |
5d33ee92 | 1113 | ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor, |
d0da3c35 | 1114 | pad, link_mask); |
d3953223 | 1115 | } |
4af81310 | 1116 | |
237e0265 SN |
1117 | /* Create immutable links between each FIMC's subdev and video node */ |
1118 | flags = MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED; | |
1119 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
1120 | if (!fmd->fimc[i]) | |
1121 | continue; | |
f998bb7b | 1122 | |
693f5c40 | 1123 | source = &fmd->fimc[i]->vid_cap.subdev.entity; |
bc7584b0 | 1124 | sink = &fmd->fimc[i]->vid_cap.ve.vdev.entity; |
f998bb7b | 1125 | |
237e0265 SN |
1126 | ret = media_entity_create_link(source, FIMC_SD_PAD_SOURCE, |
1127 | sink, 0, flags); | |
1128 | if (ret) | |
1129 | break; | |
1130 | } | |
1131 | ||
f998bb7b SN |
1132 | ret = __fimc_md_create_flite_source_links(fmd); |
1133 | if (ret < 0) | |
1134 | return ret; | |
1135 | ||
1136 | if (fmd->use_isp) | |
1137 | ret = __fimc_md_create_fimc_is_links(fmd); | |
1138 | ||
1139 | return ret; | |
d3953223 SN |
1140 | } |
1141 | ||
1142 | /* | |
056f4f30 | 1143 | * The peripheral sensor and CAM_BLK (PIXELASYNCMx) clocks management. |
d3953223 | 1144 | */ |
0e23cbbe SN |
1145 | static void fimc_md_put_clocks(struct fimc_md *fmd) |
1146 | { | |
1147 | int i = FIMC_MAX_CAMCLKS; | |
1148 | ||
1149 | while (--i >= 0) { | |
1150 | if (IS_ERR(fmd->camclk[i].clock)) | |
1151 | continue; | |
0e23cbbe SN |
1152 | clk_put(fmd->camclk[i].clock); |
1153 | fmd->camclk[i].clock = ERR_PTR(-EINVAL); | |
1154 | } | |
056f4f30 SN |
1155 | |
1156 | /* Writeback (PIXELASYNCMx) clocks */ | |
1157 | for (i = 0; i < FIMC_MAX_WBCLKS; i++) { | |
1158 | if (IS_ERR(fmd->wbclk[i])) | |
1159 | continue; | |
1160 | clk_put(fmd->wbclk[i]); | |
1161 | fmd->wbclk[i] = ERR_PTR(-EINVAL); | |
1162 | } | |
0e23cbbe SN |
1163 | } |
1164 | ||
d3953223 SN |
1165 | static int fimc_md_get_clocks(struct fimc_md *fmd) |
1166 | { | |
0e23cbbe | 1167 | struct device *dev = NULL; |
d3953223 SN |
1168 | char clk_name[32]; |
1169 | struct clk *clock; | |
044c372a | 1170 | int i, ret = 0; |
0e23cbbe SN |
1171 | |
1172 | for (i = 0; i < FIMC_MAX_CAMCLKS; i++) | |
1173 | fmd->camclk[i].clock = ERR_PTR(-EINVAL); | |
1174 | ||
1175 | if (fmd->pdev->dev.of_node) | |
1176 | dev = &fmd->pdev->dev; | |
d3953223 SN |
1177 | |
1178 | for (i = 0; i < FIMC_MAX_CAMCLKS; i++) { | |
1179 | snprintf(clk_name, sizeof(clk_name), "sclk_cam%u", i); | |
0e23cbbe SN |
1180 | clock = clk_get(dev, clk_name); |
1181 | ||
dc3ae328 | 1182 | if (IS_ERR(clock)) { |
0e23cbbe SN |
1183 | dev_err(&fmd->pdev->dev, "Failed to get clock: %s\n", |
1184 | clk_name); | |
1185 | ret = PTR_ERR(clock); | |
1186 | break; | |
1187 | } | |
d3953223 SN |
1188 | fmd->camclk[i].clock = clock; |
1189 | } | |
0e23cbbe SN |
1190 | if (ret) |
1191 | fimc_md_put_clocks(fmd); | |
d3953223 | 1192 | |
056f4f30 SN |
1193 | if (!fmd->use_isp) |
1194 | return 0; | |
1195 | /* | |
1196 | * For now get only PIXELASYNCM1 clock (Writeback B/ISP), | |
1197 | * leave PIXELASYNCM0 out for the LCD Writeback driver. | |
1198 | */ | |
1199 | fmd->wbclk[CLK_IDX_WB_A] = ERR_PTR(-EINVAL); | |
1200 | ||
1201 | for (i = CLK_IDX_WB_B; i < FIMC_MAX_WBCLKS; i++) { | |
1202 | snprintf(clk_name, sizeof(clk_name), "pxl_async%u", i); | |
1203 | clock = clk_get(dev, clk_name); | |
1204 | if (IS_ERR(clock)) { | |
1205 | v4l2_err(&fmd->v4l2_dev, "Failed to get clock: %s\n", | |
1206 | clk_name); | |
1207 | ret = PTR_ERR(clock); | |
1208 | break; | |
1209 | } | |
1210 | fmd->wbclk[i] = clock; | |
1211 | } | |
1212 | if (ret) | |
1213 | fimc_md_put_clocks(fmd); | |
1214 | ||
0e23cbbe | 1215 | return ret; |
d3953223 SN |
1216 | } |
1217 | ||
1218 | static int __fimc_md_set_camclk(struct fimc_md *fmd, | |
4c8f0629 | 1219 | struct fimc_source_info *si, |
e3fc82e8 | 1220 | bool on) |
d3953223 | 1221 | { |
d3953223 SN |
1222 | struct fimc_camclk_info *camclk; |
1223 | int ret = 0; | |
1224 | ||
4c8f0629 | 1225 | if (WARN_ON(si->clk_id >= FIMC_MAX_CAMCLKS) || !fmd || !fmd->pmf) |
d3953223 SN |
1226 | return -EINVAL; |
1227 | ||
4c8f0629 | 1228 | camclk = &fmd->camclk[si->clk_id]; |
d3953223 | 1229 | |
e3fc82e8 | 1230 | dbg("camclk %d, f: %lu, use_count: %d, on: %d", |
4c8f0629 | 1231 | si->clk_id, si->clk_frequency, camclk->use_count, on); |
d3953223 SN |
1232 | |
1233 | if (on) { | |
1234 | if (camclk->use_count > 0 && | |
4c8f0629 | 1235 | camclk->frequency != si->clk_frequency) |
d3953223 SN |
1236 | return -EINVAL; |
1237 | ||
1238 | if (camclk->use_count++ == 0) { | |
4c8f0629 SN |
1239 | clk_set_rate(camclk->clock, si->clk_frequency); |
1240 | camclk->frequency = si->clk_frequency; | |
3e20c345 SN |
1241 | ret = pm_runtime_get_sync(fmd->pmf); |
1242 | if (ret < 0) | |
1243 | return ret; | |
044c372a | 1244 | ret = clk_prepare_enable(camclk->clock); |
4c8f0629 | 1245 | dbg("Enabled camclk %d: f: %lu", si->clk_id, |
e3fc82e8 | 1246 | clk_get_rate(camclk->clock)); |
d3953223 | 1247 | } |
d3953223 SN |
1248 | return ret; |
1249 | } | |
1250 | ||
1251 | if (WARN_ON(camclk->use_count == 0)) | |
1252 | return 0; | |
1253 | ||
1254 | if (--camclk->use_count == 0) { | |
044c372a | 1255 | clk_disable_unprepare(camclk->clock); |
3e20c345 | 1256 | pm_runtime_put(fmd->pmf); |
4c8f0629 | 1257 | dbg("Disabled camclk %d", si->clk_id); |
d3953223 SN |
1258 | } |
1259 | return ret; | |
1260 | } | |
1261 | ||
1262 | /** | |
1263 | * fimc_md_set_camclk - peripheral sensor clock setup | |
1264 | * @sd: sensor subdev to configure sclk_cam clock for | |
1265 | * @on: 1 to enable or 0 to disable the clock | |
1266 | * | |
1267 | * There are 2 separate clock outputs available in the SoC for external | |
1268 | * image processors. These clocks are shared between all registered FIMC | |
1269 | * devices to which sensors can be attached, either directly or through | |
1270 | * the MIPI CSI receiver. The clock is allowed here to be used by | |
1271 | * multiple sensors concurrently if they use same frequency. | |
d3953223 SN |
1272 | * This function should only be called when the graph mutex is held. |
1273 | */ | |
1274 | int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on) | |
1275 | { | |
4c8f0629 | 1276 | struct fimc_source_info *si = v4l2_get_subdev_hostdata(sd); |
d3953223 SN |
1277 | struct fimc_md *fmd = entity_to_fimc_mdev(&sd->entity); |
1278 | ||
4c8f0629 | 1279 | return __fimc_md_set_camclk(fmd, si, on); |
d3953223 SN |
1280 | } |
1281 | ||
d3775fa7 | 1282 | static int __fimc_md_modify_pipeline(struct media_entity *entity, bool enable) |
d3953223 | 1283 | { |
403dfbec | 1284 | struct exynos_video_entity *ve; |
d3775fa7 | 1285 | struct fimc_pipeline *p; |
403dfbec | 1286 | struct video_device *vdev; |
d3775fa7 | 1287 | int ret; |
d3953223 | 1288 | |
d3775fa7 SN |
1289 | vdev = media_entity_to_video_device(entity); |
1290 | if (vdev->entity.use_count == 0) | |
d3953223 SN |
1291 | return 0; |
1292 | ||
403dfbec | 1293 | ve = vdev_to_exynos_video_entity(vdev); |
d3775fa7 SN |
1294 | p = to_fimc_pipeline(ve->pipe); |
1295 | /* | |
1296 | * Nothing to do if we are disabling the pipeline, some link | |
1297 | * has been disconnected and p->subdevs array is cleared now. | |
1298 | */ | |
1299 | if (!enable && p->subdevs[IDX_SENSOR] == NULL) | |
1300 | return 0; | |
403dfbec | 1301 | |
d3775fa7 SN |
1302 | if (enable) |
1303 | ret = __fimc_pipeline_open(ve->pipe, entity, true); | |
1304 | else | |
1305 | ret = __fimc_pipeline_close(ve->pipe); | |
131b6c61 | 1306 | |
d3775fa7 SN |
1307 | if (ret == 0 && !enable) |
1308 | memset(p->subdevs, 0, sizeof(p->subdevs)); | |
1309 | ||
1310 | return ret; | |
1311 | } | |
1312 | ||
1313 | /* Locking: called with entity->parent->graph_mutex mutex held. */ | |
1314 | static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable) | |
1315 | { | |
1316 | struct media_entity *entity_err = entity; | |
1317 | struct media_entity_graph graph; | |
1318 | int ret; | |
1319 | ||
1320 | /* | |
1321 | * Walk current graph and call the pipeline open/close routine for each | |
1322 | * opened video node that belongs to the graph of entities connected | |
1323 | * through active links. This is needed as we cannot power on/off the | |
1324 | * subdevs in random order. | |
1325 | */ | |
1326 | media_entity_graph_walk_start(&graph, entity); | |
1327 | ||
1328 | while ((entity = media_entity_graph_walk_next(&graph))) { | |
1329 | if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE) | |
1330 | continue; | |
1331 | ||
1332 | ret = __fimc_md_modify_pipeline(entity, enable); | |
1333 | ||
1334 | if (ret < 0) | |
1335 | goto err; | |
1336 | } | |
1337 | ||
1338 | return 0; | |
1339 | err: | |
1340 | media_entity_graph_walk_start(&graph, entity_err); | |
1341 | ||
1342 | while ((entity_err = media_entity_graph_walk_next(&graph))) { | |
1343 | if (media_entity_type(entity_err) != MEDIA_ENT_T_DEVNODE) | |
1344 | continue; | |
1345 | ||
1346 | __fimc_md_modify_pipeline(entity_err, !enable); | |
1347 | ||
1348 | if (entity_err == entity) | |
1349 | break; | |
1350 | } | |
1351 | ||
1352 | return ret; | |
1353 | } | |
1354 | ||
1355 | static int fimc_md_link_notify(struct media_link *link, unsigned int flags, | |
1356 | unsigned int notification) | |
1357 | { | |
1358 | struct media_entity *sink = link->sink->entity; | |
1359 | int ret = 0; | |
1360 | ||
1361 | /* Before link disconnection */ | |
1362 | if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH) { | |
1363 | if (!(flags & MEDIA_LNK_FL_ENABLED)) | |
1364 | ret = __fimc_md_modify_pipelines(sink, false); | |
1365 | else | |
1366 | ; /* TODO: Link state change validation */ | |
1367 | /* After link activation */ | |
1368 | } else if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH && | |
1369 | (link->flags & MEDIA_LNK_FL_ENABLED)) { | |
1370 | ret = __fimc_md_modify_pipelines(sink, true); | |
d3953223 | 1371 | } |
740ad921 | 1372 | |
d3775fa7 | 1373 | return ret ? -EPIPE : 0; |
d3953223 SN |
1374 | } |
1375 | ||
1376 | static ssize_t fimc_md_sysfs_show(struct device *dev, | |
1377 | struct device_attribute *attr, char *buf) | |
1378 | { | |
1379 | struct platform_device *pdev = to_platform_device(dev); | |
1380 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1381 | ||
1382 | if (fmd->user_subdev_api) | |
1383 | return strlcpy(buf, "Sub-device API (sub-dev)\n", PAGE_SIZE); | |
1384 | ||
1385 | return strlcpy(buf, "V4L2 video node only API (vid-dev)\n", PAGE_SIZE); | |
1386 | } | |
1387 | ||
1388 | static ssize_t fimc_md_sysfs_store(struct device *dev, | |
1389 | struct device_attribute *attr, | |
1390 | const char *buf, size_t count) | |
1391 | { | |
1392 | struct platform_device *pdev = to_platform_device(dev); | |
1393 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1394 | bool subdev_api; | |
1395 | int i; | |
1396 | ||
1397 | if (!strcmp(buf, "vid-dev\n")) | |
1398 | subdev_api = false; | |
1399 | else if (!strcmp(buf, "sub-dev\n")) | |
1400 | subdev_api = true; | |
1401 | else | |
1402 | return count; | |
1403 | ||
1404 | fmd->user_subdev_api = subdev_api; | |
1405 | for (i = 0; i < FIMC_MAX_DEVS; i++) | |
1406 | if (fmd->fimc[i]) | |
1407 | fmd->fimc[i]->vid_cap.user_subdev_api = subdev_api; | |
1408 | return count; | |
1409 | } | |
1410 | /* | |
1411 | * This device attribute is to select video pipeline configuration method. | |
1412 | * There are following valid values: | |
1413 | * vid-dev - for V4L2 video node API only, subdevice will be configured | |
1414 | * by the host driver. | |
1415 | * sub-dev - for media controller API, subdevs must be configured in user | |
1416 | * space before starting streaming. | |
1417 | */ | |
1418 | static DEVICE_ATTR(subdev_conf_mode, S_IWUSR | S_IRUGO, | |
1419 | fimc_md_sysfs_show, fimc_md_sysfs_store); | |
1420 | ||
4163851f SN |
1421 | static int fimc_md_get_pinctrl(struct fimc_md *fmd) |
1422 | { | |
1423 | struct device *dev = &fmd->pdev->dev; | |
1424 | struct fimc_pinctrl *pctl = &fmd->pinctl; | |
1425 | ||
1426 | pctl->pinctrl = devm_pinctrl_get(dev); | |
1427 | if (IS_ERR(pctl->pinctrl)) | |
1428 | return PTR_ERR(pctl->pinctrl); | |
1429 | ||
1430 | pctl->state_default = pinctrl_lookup_state(pctl->pinctrl, | |
1431 | PINCTRL_STATE_DEFAULT); | |
1432 | if (IS_ERR(pctl->state_default)) | |
1433 | return PTR_ERR(pctl->state_default); | |
1434 | ||
1435 | pctl->state_idle = pinctrl_lookup_state(pctl->pinctrl, | |
1436 | PINCTRL_STATE_IDLE); | |
1437 | return 0; | |
1438 | } | |
1439 | ||
ecd9acbf | 1440 | static int fimc_md_probe(struct platform_device *pdev) |
d3953223 | 1441 | { |
e2985a26 | 1442 | struct device *dev = &pdev->dev; |
d3953223 SN |
1443 | struct v4l2_device *v4l2_dev; |
1444 | struct fimc_md *fmd; | |
1445 | int ret; | |
1446 | ||
e2985a26 | 1447 | fmd = devm_kzalloc(dev, sizeof(*fmd), GFP_KERNEL); |
d3953223 SN |
1448 | if (!fmd) |
1449 | return -ENOMEM; | |
1450 | ||
1451 | spin_lock_init(&fmd->slock); | |
1452 | fmd->pdev = pdev; | |
403dfbec | 1453 | INIT_LIST_HEAD(&fmd->pipelines); |
d3953223 SN |
1454 | |
1455 | strlcpy(fmd->media_dev.model, "SAMSUNG S5P FIMC", | |
1456 | sizeof(fmd->media_dev.model)); | |
1457 | fmd->media_dev.link_notify = fimc_md_link_notify; | |
e2985a26 | 1458 | fmd->media_dev.dev = dev; |
d3953223 SN |
1459 | |
1460 | v4l2_dev = &fmd->v4l2_dev; | |
1461 | v4l2_dev->mdev = &fmd->media_dev; | |
e1d72f4d | 1462 | v4l2_dev->notify = fimc_sensor_notify; |
e2985a26 | 1463 | strlcpy(v4l2_dev->name, "s5p-fimc-md", sizeof(v4l2_dev->name)); |
d3953223 | 1464 | |
e781bbe3 SN |
1465 | fmd->use_isp = fimc_md_is_isp_available(dev->of_node); |
1466 | ||
e2985a26 | 1467 | ret = v4l2_device_register(dev, &fmd->v4l2_dev); |
d3953223 SN |
1468 | if (ret < 0) { |
1469 | v4l2_err(v4l2_dev, "Failed to register v4l2_device: %d\n", ret); | |
6d91a51a | 1470 | return ret; |
d3953223 SN |
1471 | } |
1472 | ret = media_device_register(&fmd->media_dev); | |
1473 | if (ret < 0) { | |
1474 | v4l2_err(v4l2_dev, "Failed to register media device: %d\n", ret); | |
693f5c40 | 1475 | goto err_md; |
d3953223 SN |
1476 | } |
1477 | ret = fimc_md_get_clocks(fmd); | |
1478 | if (ret) | |
693f5c40 | 1479 | goto err_clk; |
d3953223 | 1480 | |
e2985a26 | 1481 | fmd->user_subdev_api = (dev->of_node != NULL); |
693f5c40 SN |
1482 | |
1483 | /* Protect the media graph while we're registering entities */ | |
1484 | mutex_lock(&fmd->media_dev.graph_mutex); | |
1485 | ||
4163851f SN |
1486 | ret = fimc_md_get_pinctrl(fmd); |
1487 | if (ret < 0) { | |
1488 | if (ret != EPROBE_DEFER) | |
1489 | dev_err(dev, "Failed to get pinctrl: %d\n", ret); | |
1490 | goto err_unlock; | |
1491 | } | |
1492 | ||
e2985a26 SN |
1493 | if (dev->of_node) |
1494 | ret = fimc_md_register_of_platform_entities(fmd, dev->of_node); | |
1495 | else | |
1496 | ret = bus_for_each_dev(&platform_bus_type, NULL, fmd, | |
1497 | fimc_md_pdev_match); | |
d3953223 | 1498 | if (ret) |
693f5c40 | 1499 | goto err_unlock; |
d3953223 | 1500 | |
2b13f7d4 | 1501 | if (dev->platform_data || dev->of_node) { |
5cbf6f16 SN |
1502 | ret = fimc_md_register_sensor_entities(fmd); |
1503 | if (ret) | |
693f5c40 | 1504 | goto err_unlock; |
5cbf6f16 | 1505 | } |
e2985a26 | 1506 | |
d3953223 SN |
1507 | ret = fimc_md_create_links(fmd); |
1508 | if (ret) | |
693f5c40 | 1509 | goto err_unlock; |
d3953223 SN |
1510 | ret = v4l2_device_register_subdev_nodes(&fmd->v4l2_dev); |
1511 | if (ret) | |
693f5c40 | 1512 | goto err_unlock; |
d3953223 SN |
1513 | |
1514 | ret = device_create_file(&pdev->dev, &dev_attr_subdev_conf_mode); | |
693f5c40 SN |
1515 | if (ret) |
1516 | goto err_unlock; | |
1517 | ||
1518 | platform_set_drvdata(pdev, fmd); | |
1519 | mutex_unlock(&fmd->media_dev.graph_mutex); | |
1520 | return 0; | |
1521 | ||
1522 | err_unlock: | |
1523 | mutex_unlock(&fmd->media_dev.graph_mutex); | |
1524 | err_clk: | |
d3953223 SN |
1525 | fimc_md_put_clocks(fmd); |
1526 | fimc_md_unregister_entities(fmd); | |
d2b903b4 | 1527 | media_device_unregister(&fmd->media_dev); |
693f5c40 | 1528 | err_md: |
d3953223 | 1529 | v4l2_device_unregister(&fmd->v4l2_dev); |
d3953223 SN |
1530 | return ret; |
1531 | } | |
1532 | ||
4c62e976 | 1533 | static int fimc_md_remove(struct platform_device *pdev) |
d3953223 SN |
1534 | { |
1535 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1536 | ||
1537 | if (!fmd) | |
1538 | return 0; | |
b74bee15 SN |
1539 | |
1540 | v4l2_device_unregister(&fmd->v4l2_dev); | |
d3953223 SN |
1541 | device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode); |
1542 | fimc_md_unregister_entities(fmd); | |
403dfbec | 1543 | fimc_md_pipelines_free(fmd); |
d3953223 SN |
1544 | media_device_unregister(&fmd->media_dev); |
1545 | fimc_md_put_clocks(fmd); | |
d3953223 SN |
1546 | return 0; |
1547 | } | |
1548 | ||
e2985a26 SN |
1549 | static struct platform_device_id fimc_driver_ids[] __always_unused = { |
1550 | { .name = "s5p-fimc-md" }, | |
1551 | { }, | |
1552 | }; | |
1553 | MODULE_DEVICE_TABLE(platform, fimc_driver_ids); | |
1554 | ||
1555 | static const struct of_device_id fimc_md_of_match[] = { | |
1556 | { .compatible = "samsung,fimc" }, | |
1557 | { }, | |
1558 | }; | |
1559 | MODULE_DEVICE_TABLE(of, fimc_md_of_match); | |
1560 | ||
d3953223 SN |
1561 | static struct platform_driver fimc_md_driver = { |
1562 | .probe = fimc_md_probe, | |
4c62e976 | 1563 | .remove = fimc_md_remove, |
d3953223 | 1564 | .driver = { |
e2985a26 SN |
1565 | .of_match_table = of_match_ptr(fimc_md_of_match), |
1566 | .name = "s5p-fimc-md", | |
1567 | .owner = THIS_MODULE, | |
d3953223 SN |
1568 | } |
1569 | }; | |
1570 | ||
7e566be2 | 1571 | static int __init fimc_md_init(void) |
d3953223 SN |
1572 | { |
1573 | int ret; | |
ecd9acbf | 1574 | |
d3953223 SN |
1575 | request_module("s5p-csis"); |
1576 | ret = fimc_register_driver(); | |
1577 | if (ret) | |
1578 | return ret; | |
ecd9acbf | 1579 | |
d3953223 SN |
1580 | return platform_driver_register(&fimc_md_driver); |
1581 | } | |
7e566be2 SK |
1582 | |
1583 | static void __exit fimc_md_exit(void) | |
d3953223 SN |
1584 | { |
1585 | platform_driver_unregister(&fimc_md_driver); | |
1586 | fimc_unregister_driver(); | |
1587 | } | |
1588 | ||
1589 | module_init(fimc_md_init); | |
1590 | module_exit(fimc_md_exit); | |
1591 | ||
1592 | MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); | |
1593 | MODULE_DESCRIPTION("S5P FIMC camera host interface/video postprocessor driver"); | |
1594 | MODULE_LICENSE("GPL"); | |
1595 | MODULE_VERSION("2.0.1"); |