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> | |
d3f5e0c5 SN |
14 | #include <linux/clk.h> |
15 | #include <linux/clk-provider.h> | |
d3953223 SN |
16 | #include <linux/device.h> |
17 | #include <linux/errno.h> | |
18 | #include <linux/i2c.h> | |
19 | #include <linux/kernel.h> | |
20 | #include <linux/list.h> | |
21 | #include <linux/module.h> | |
e2985a26 SN |
22 | #include <linux/of.h> |
23 | #include <linux/of_platform.h> | |
24 | #include <linux/of_device.h> | |
fd9fdb78 | 25 | #include <linux/of_graph.h> |
d3953223 SN |
26 | #include <linux/platform_device.h> |
27 | #include <linux/pm_runtime.h> | |
28 | #include <linux/types.h> | |
29 | #include <linux/slab.h> | |
fa91f105 | 30 | #include <media/v4l2-async.h> |
131b6c61 | 31 | #include <media/v4l2-ctrls.h> |
e2985a26 | 32 | #include <media/v4l2-of.h> |
d3953223 | 33 | #include <media/media-device.h> |
d647f0b7 | 34 | #include <media/drv-intf/exynos-fimc.h> |
d3953223 | 35 | |
56fa1a6a | 36 | #include "media-dev.h" |
d3953223 | 37 | #include "fimc-core.h" |
e781bbe3 | 38 | #include "fimc-is.h" |
0f735f52 | 39 | #include "fimc-lite.h" |
d3953223 SN |
40 | #include "mipi-csis.h" |
41 | ||
52917bcb SN |
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 | |
3efdf62c | 91 | if (!pad || !is_media_entity_v4l2_subdev(pad->entity)) |
0f735f52 | 92 | break; |
0f735f52 SN |
93 | sd = media_entity_to_v4l2_subdev(pad->entity); |
94 | ||
95 | switch (sd->grp_id) { | |
588c87be | 96 | case GRP_ID_SENSOR: |
52917bcb SN |
97 | sensor = sd; |
98 | /* fall through */ | |
99 | case GRP_ID_FIMC_IS_SENSOR: | |
0f735f52 SN |
100 | p->subdevs[IDX_SENSOR] = sd; |
101 | break; | |
588c87be | 102 | case GRP_ID_CSIS: |
0f735f52 SN |
103 | p->subdevs[IDX_CSIS] = sd; |
104 | break; | |
588c87be | 105 | case GRP_ID_FLITE: |
4af81310 SN |
106 | p->subdevs[IDX_FLITE] = sd; |
107 | break; | |
588c87be | 108 | case GRP_ID_FIMC: |
52917bcb | 109 | p->subdevs[IDX_FIMC] = sd; |
0f735f52 | 110 | break; |
e781bbe3 SN |
111 | case GRP_ID_FIMC_IS: |
112 | p->subdevs[IDX_IS_ISP] = sd; | |
113 | break; | |
0f735f52 | 114 | default: |
e781bbe3 | 115 | break; |
0f735f52 | 116 | } |
39bb6df6 SN |
117 | me = &sd->entity; |
118 | if (me->num_pads == 1) | |
119 | break; | |
d3953223 | 120 | } |
52917bcb SN |
121 | |
122 | if (sensor && p->subdevs[IDX_FIMC]) | |
123 | __setup_sensor_notification(fmd, sensor, p->subdevs[IDX_FIMC]); | |
d3953223 SN |
124 | } |
125 | ||
126 | /** | |
127 | * __subdev_set_power - change power state of a single subdev | |
128 | * @sd: subdevice to change power state for | |
129 | * @on: 1 to enable power or 0 to disable | |
130 | * | |
131 | * Return result of s_power subdev operation or -ENXIO if sd argument | |
132 | * is NULL. Return 0 if the subdevice does not implement s_power. | |
133 | */ | |
134 | static int __subdev_set_power(struct v4l2_subdev *sd, int on) | |
135 | { | |
136 | int *use_count; | |
137 | int ret; | |
138 | ||
139 | if (sd == NULL) | |
140 | return -ENXIO; | |
141 | ||
142 | use_count = &sd->entity.use_count; | |
143 | if (on && (*use_count)++ > 0) | |
144 | return 0; | |
145 | else if (!on && (*use_count == 0 || --(*use_count) > 0)) | |
146 | return 0; | |
147 | ret = v4l2_subdev_call(sd, core, s_power, on); | |
148 | ||
149 | return ret != -ENOIOCTLCMD ? ret : 0; | |
150 | } | |
151 | ||
152 | /** | |
153 | * fimc_pipeline_s_power - change power state of all pipeline subdevs | |
154 | * @fimc: fimc device terminating the pipeline | |
0f735f52 | 155 | * @state: true to power on, false to power off |
d3953223 | 156 | * |
0f735f52 | 157 | * Needs to be called with the graph mutex held. |
d3953223 | 158 | */ |
f8bca4f5 | 159 | static int fimc_pipeline_s_power(struct fimc_pipeline *p, bool on) |
d3953223 | 160 | { |
f8bca4f5 SN |
161 | static const u8 seq[2][IDX_MAX - 1] = { |
162 | { IDX_IS_ISP, IDX_SENSOR, IDX_CSIS, IDX_FLITE }, | |
163 | { IDX_CSIS, IDX_FLITE, IDX_SENSOR, IDX_IS_ISP }, | |
164 | }; | |
165 | int i, ret = 0; | |
d3953223 | 166 | |
0f735f52 | 167 | if (p->subdevs[IDX_SENSOR] == NULL) |
d3953223 SN |
168 | return -ENXIO; |
169 | ||
f8bca4f5 SN |
170 | for (i = 0; i < IDX_MAX - 1; i++) { |
171 | unsigned int idx = seq[on][i]; | |
172 | ||
173 | ret = __subdev_set_power(p->subdevs[idx], on); | |
174 | ||
0f735f52 | 175 | |
0f735f52 | 176 | if (ret < 0 && ret != -ENXIO) |
f8bca4f5 | 177 | goto error; |
d3953223 | 178 | } |
0f735f52 | 179 | return 0; |
f8bca4f5 SN |
180 | error: |
181 | for (; i >= 0; i--) { | |
182 | unsigned int idx = seq[on][i]; | |
183 | __subdev_set_power(p->subdevs[idx], !on); | |
184 | } | |
185 | return ret; | |
d3953223 SN |
186 | } |
187 | ||
76775776 JA |
188 | /** |
189 | * __fimc_pipeline_enable - enable power of all pipeline subdevs | |
190 | * and the sensor clock | |
191 | * @ep: video pipeline structure | |
192 | * @fmd: fimc media device | |
193 | * | |
194 | * Called with the graph mutex held. | |
195 | */ | |
196 | static int __fimc_pipeline_enable(struct exynos_media_pipeline *ep, | |
197 | struct fimc_md *fmd) | |
198 | { | |
199 | struct fimc_pipeline *p = to_fimc_pipeline(ep); | |
200 | int ret; | |
201 | ||
202 | /* Enable PXLASYNC clock if this pipeline includes FIMC-IS */ | |
203 | if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP]) { | |
204 | ret = clk_prepare_enable(fmd->wbclk[CLK_IDX_WB_B]); | |
205 | if (ret < 0) | |
206 | return ret; | |
207 | } | |
208 | ||
209 | ret = fimc_pipeline_s_power(p, 1); | |
210 | if (!ret) | |
211 | return 0; | |
212 | ||
213 | if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP]) | |
214 | clk_disable_unprepare(fmd->wbclk[CLK_IDX_WB_B]); | |
215 | ||
216 | return ret; | |
217 | } | |
218 | ||
d3953223 | 219 | /** |
b9ee31e6 SN |
220 | * __fimc_pipeline_open - update the pipeline information, enable power |
221 | * of all pipeline subdevs and the sensor clock | |
d3953223 | 222 | * @me: media entity to start graph walk with |
056f4f30 | 223 | * @prepare: true to walk the current pipeline and acquire all subdevs |
d3953223 | 224 | * |
740ad921 | 225 | * Called with the graph mutex held. |
d3953223 | 226 | */ |
403dfbec | 227 | static int __fimc_pipeline_open(struct exynos_media_pipeline *ep, |
056f4f30 | 228 | struct media_entity *me, bool prepare) |
d3953223 | 229 | { |
056f4f30 | 230 | struct fimc_md *fmd = entity_to_fimc_mdev(me); |
403dfbec | 231 | struct fimc_pipeline *p = to_fimc_pipeline(ep); |
056f4f30 | 232 | struct v4l2_subdev *sd; |
d3953223 | 233 | |
056f4f30 SN |
234 | if (WARN_ON(p == NULL || me == NULL)) |
235 | return -EINVAL; | |
236 | ||
237 | if (prepare) | |
0f735f52 SN |
238 | fimc_pipeline_prepare(p, me); |
239 | ||
056f4f30 | 240 | sd = p->subdevs[IDX_SENSOR]; |
76775776 JA |
241 | if (sd == NULL) { |
242 | pr_warn("%s(): No sensor subdev\n", __func__); | |
243 | /* | |
244 | * Pipeline open cannot fail so as to make it possible | |
245 | * for the user space to configure the pipeline. | |
246 | */ | |
056f4f30 | 247 | return 0; |
76775776 | 248 | } |
0f735f52 | 249 | |
76775776 | 250 | return __fimc_pipeline_enable(ep, fmd); |
d3953223 SN |
251 | } |
252 | ||
d3953223 | 253 | /** |
b9ee31e6 | 254 | * __fimc_pipeline_close - disable the sensor clock and pipeline power |
d3953223 SN |
255 | * @fimc: fimc device terminating the pipeline |
256 | * | |
740ad921 | 257 | * Disable power of all subdevs and turn the external sensor clock off. |
d3953223 | 258 | */ |
403dfbec | 259 | static int __fimc_pipeline_close(struct exynos_media_pipeline *ep) |
d3953223 | 260 | { |
403dfbec | 261 | struct fimc_pipeline *p = to_fimc_pipeline(ep); |
056f4f30 SN |
262 | struct v4l2_subdev *sd = p ? p->subdevs[IDX_SENSOR] : NULL; |
263 | struct fimc_md *fmd; | |
36da6fcd | 264 | int ret; |
740ad921 | 265 | |
36da6fcd SN |
266 | if (sd == NULL) { |
267 | pr_warn("%s(): No sensor subdev\n", __func__); | |
268 | return 0; | |
d3953223 | 269 | } |
056f4f30 | 270 | |
36da6fcd | 271 | ret = fimc_pipeline_s_power(p, 0); |
36da6fcd | 272 | |
056f4f30 SN |
273 | fmd = entity_to_fimc_mdev(&sd->entity); |
274 | ||
275 | /* Disable PXLASYNC clock if this pipeline includes FIMC-IS */ | |
276 | if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP]) | |
277 | clk_disable_unprepare(fmd->wbclk[CLK_IDX_WB_B]); | |
278 | ||
d3953223 SN |
279 | return ret == -ENXIO ? 0 : ret; |
280 | } | |
281 | ||
d3953223 | 282 | /** |
8d274e7c | 283 | * __fimc_pipeline_s_stream - call s_stream() on pipeline subdevs |
0f735f52 | 284 | * @pipeline: video pipeline structure |
8d274e7c | 285 | * @on: passed as the s_stream() callback argument |
d3953223 | 286 | */ |
403dfbec | 287 | static int __fimc_pipeline_s_stream(struct exynos_media_pipeline *ep, bool on) |
d3953223 | 288 | { |
8d274e7c SN |
289 | static const u8 seq[2][IDX_MAX] = { |
290 | { IDX_FIMC, IDX_SENSOR, IDX_IS_ISP, IDX_CSIS, IDX_FLITE }, | |
291 | { IDX_CSIS, IDX_FLITE, IDX_FIMC, IDX_SENSOR, IDX_IS_ISP }, | |
292 | }; | |
403dfbec | 293 | struct fimc_pipeline *p = to_fimc_pipeline(ep); |
76775776 JA |
294 | struct fimc_md *fmd = entity_to_fimc_mdev(&p->subdevs[IDX_CSIS]->entity); |
295 | enum fimc_subdev_index sd_id; | |
8d274e7c | 296 | int i, ret = 0; |
d3953223 | 297 | |
76775776 JA |
298 | if (p->subdevs[IDX_SENSOR] == NULL) { |
299 | if (!fmd->user_subdev_api) { | |
300 | /* | |
301 | * Sensor must be already discovered if we | |
302 | * aren't in the user_subdev_api mode | |
303 | */ | |
304 | return -ENODEV; | |
305 | } | |
306 | ||
307 | /* Get pipeline sink entity */ | |
308 | if (p->subdevs[IDX_FIMC]) | |
309 | sd_id = IDX_FIMC; | |
310 | else if (p->subdevs[IDX_IS_ISP]) | |
311 | sd_id = IDX_IS_ISP; | |
312 | else if (p->subdevs[IDX_FLITE]) | |
313 | sd_id = IDX_FLITE; | |
314 | else | |
315 | return -ENODEV; | |
316 | ||
317 | /* | |
318 | * Sensor could have been linked between open and STREAMON - | |
319 | * check if this is the case. | |
320 | */ | |
321 | fimc_pipeline_prepare(p, &p->subdevs[sd_id]->entity); | |
322 | ||
323 | if (p->subdevs[IDX_SENSOR] == NULL) | |
324 | return -ENODEV; | |
325 | ||
326 | ret = __fimc_pipeline_enable(ep, fmd); | |
327 | if (ret < 0) | |
328 | return ret; | |
329 | ||
330 | } | |
d3953223 | 331 | |
0f735f52 | 332 | for (i = 0; i < IDX_MAX; i++) { |
8d274e7c | 333 | unsigned int idx = seq[on][i]; |
0f735f52 SN |
334 | |
335 | ret = v4l2_subdev_call(p->subdevs[idx], video, s_stream, on); | |
336 | ||
337 | if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV) | |
8d274e7c | 338 | goto error; |
0f735f52 | 339 | } |
76775776 | 340 | |
0f735f52 | 341 | return 0; |
8d274e7c | 342 | error: |
76775776 | 343 | fimc_pipeline_s_power(p, !on); |
8d274e7c SN |
344 | for (; i >= 0; i--) { |
345 | unsigned int idx = seq[on][i]; | |
346 | v4l2_subdev_call(p->subdevs[idx], video, s_stream, !on); | |
347 | } | |
348 | return ret; | |
d3953223 | 349 | } |
b9ee31e6 SN |
350 | |
351 | /* Media pipeline operations for the FIMC/FIMC-LITE video device driver */ | |
403dfbec | 352 | static const struct exynos_media_pipeline_ops fimc_pipeline_ops = { |
740ad921 SN |
353 | .open = __fimc_pipeline_open, |
354 | .close = __fimc_pipeline_close, | |
355 | .set_stream = __fimc_pipeline_s_stream, | |
b9ee31e6 | 356 | }; |
d3953223 | 357 | |
403dfbec SN |
358 | static struct exynos_media_pipeline *fimc_md_pipeline_create( |
359 | struct fimc_md *fmd) | |
360 | { | |
361 | struct fimc_pipeline *p; | |
362 | ||
363 | p = kzalloc(sizeof(*p), GFP_KERNEL); | |
364 | if (!p) | |
365 | return NULL; | |
366 | ||
367 | list_add_tail(&p->list, &fmd->pipelines); | |
368 | ||
369 | p->ep.ops = &fimc_pipeline_ops; | |
370 | return &p->ep; | |
371 | } | |
372 | ||
373 | static void fimc_md_pipelines_free(struct fimc_md *fmd) | |
374 | { | |
375 | while (!list_empty(&fmd->pipelines)) { | |
376 | struct fimc_pipeline *p; | |
377 | ||
378 | p = list_entry(fmd->pipelines.next, typeof(*p), list); | |
379 | list_del(&p->list); | |
380 | kfree(p); | |
381 | } | |
382 | } | |
383 | ||
2b13f7d4 SN |
384 | /* Parse port node and register as a sub-device any sensor specified there. */ |
385 | static int fimc_md_parse_port_node(struct fimc_md *fmd, | |
386 | struct device_node *port, | |
387 | unsigned int index) | |
388 | { | |
49b2f4c5 | 389 | struct fimc_source_info *pd = &fmd->sensor[index].pdata; |
2b13f7d4 | 390 | struct device_node *rem, *ep, *np; |
2b13f7d4 | 391 | struct v4l2_of_endpoint endpoint; |
234eab84 | 392 | int ret; |
2b13f7d4 SN |
393 | |
394 | /* Assume here a port node can have only one endpoint node. */ | |
395 | ep = of_get_next_child(port, NULL); | |
396 | if (!ep) | |
397 | return 0; | |
398 | ||
234eab84 JMC |
399 | ret = v4l2_of_parse_endpoint(ep, &endpoint); |
400 | if (ret) { | |
401 | of_node_put(ep); | |
402 | return ret; | |
403 | } | |
404 | ||
f2a575f6 | 405 | if (WARN_ON(endpoint.base.port == 0) || index >= FIMC_MAX_SENSORS) |
2b13f7d4 SN |
406 | return -EINVAL; |
407 | ||
f2a575f6 | 408 | pd->mux_id = (endpoint.base.port - 1) & 0x1; |
2b13f7d4 | 409 | |
fd9fdb78 | 410 | rem = of_graph_get_remote_port_parent(ep); |
2b13f7d4 SN |
411 | of_node_put(ep); |
412 | if (rem == NULL) { | |
413 | v4l2_info(&fmd->v4l2_dev, "Remote device at %s not found\n", | |
414 | ep->full_name); | |
415 | return 0; | |
416 | } | |
2b13f7d4 | 417 | |
f2a575f6 | 418 | if (fimc_input_is_parallel(endpoint.base.port)) { |
2b13f7d4 SN |
419 | if (endpoint.bus_type == V4L2_MBUS_PARALLEL) |
420 | pd->sensor_bus_type = FIMC_BUS_TYPE_ITU_601; | |
421 | else | |
422 | pd->sensor_bus_type = FIMC_BUS_TYPE_ITU_656; | |
423 | pd->flags = endpoint.bus.parallel.flags; | |
f2a575f6 | 424 | } else if (fimc_input_is_mipi_csi(endpoint.base.port)) { |
2b13f7d4 SN |
425 | /* |
426 | * MIPI CSI-2: only input mux selection and | |
427 | * the sensor's clock frequency is needed. | |
428 | */ | |
429 | pd->sensor_bus_type = FIMC_BUS_TYPE_MIPI_CSI2; | |
430 | } else { | |
431 | v4l2_err(&fmd->v4l2_dev, "Wrong port id (%u) at node %s\n", | |
f2a575f6 | 432 | endpoint.base.port, rem->full_name); |
2b13f7d4 SN |
433 | } |
434 | /* | |
435 | * For FIMC-IS handled sensors, that are placed under i2c-isp device | |
436 | * node, FIMC is connected to the FIMC-IS through its ISP Writeback | |
437 | * input. Sensors are attached to the FIMC-LITE hostdata interface | |
438 | * directly or through MIPI-CSIS, depending on the external media bus | |
439 | * used. This needs to be handled in a more reliable way, not by just | |
440 | * checking parent's node name. | |
441 | */ | |
442 | np = of_get_parent(rem); | |
443 | ||
444 | if (np && !of_node_cmp(np->name, "i2c-isp")) | |
445 | pd->fimc_bus_type = FIMC_BUS_TYPE_ISP_WRITEBACK; | |
446 | else | |
447 | pd->fimc_bus_type = pd->sensor_bus_type; | |
448 | ||
fa91f105 SN |
449 | if (WARN_ON(index >= ARRAY_SIZE(fmd->sensor))) |
450 | return -EINVAL; | |
2b13f7d4 | 451 | |
fa91f105 SN |
452 | fmd->sensor[index].asd.match_type = V4L2_ASYNC_MATCH_OF; |
453 | fmd->sensor[index].asd.match.of.node = rem; | |
454 | fmd->async_subdevs[index] = &fmd->sensor[index].asd; | |
455 | ||
456 | fmd->num_sensors++; | |
457 | ||
458 | of_node_put(rem); | |
459 | return 0; | |
2b13f7d4 SN |
460 | } |
461 | ||
462 | /* Register all SoC external sub-devices */ | |
49b2f4c5 | 463 | static int fimc_md_register_sensor_entities(struct fimc_md *fmd) |
2b13f7d4 SN |
464 | { |
465 | struct device_node *parent = fmd->pdev->dev.of_node; | |
466 | struct device_node *node, *ports; | |
467 | int index = 0; | |
468 | int ret; | |
469 | ||
49b2f4c5 SN |
470 | /* |
471 | * Runtime resume one of the FIMC entities to make sure | |
472 | * the sclk_cam clocks are not globally disabled. | |
473 | */ | |
474 | if (!fmd->pmf) | |
475 | return -ENXIO; | |
476 | ||
477 | ret = pm_runtime_get_sync(fmd->pmf); | |
478 | if (ret < 0) | |
479 | return ret; | |
480 | ||
481 | fmd->num_sensors = 0; | |
482 | ||
2b13f7d4 SN |
483 | /* Attach sensors linked to MIPI CSI-2 receivers */ |
484 | for_each_available_child_of_node(parent, node) { | |
485 | struct device_node *port; | |
486 | ||
487 | if (of_node_cmp(node->name, "csis")) | |
488 | continue; | |
489 | /* The csis node can have only port subnode. */ | |
490 | port = of_get_next_child(node, NULL); | |
491 | if (!port) | |
492 | continue; | |
493 | ||
494 | ret = fimc_md_parse_port_node(fmd, port, index); | |
458a3952 AKC |
495 | if (ret < 0) { |
496 | of_node_put(node); | |
49b2f4c5 | 497 | goto rpm_put; |
458a3952 | 498 | } |
2b13f7d4 SN |
499 | index++; |
500 | } | |
501 | ||
502 | /* Attach sensors listed in the parallel-ports node */ | |
503 | ports = of_get_child_by_name(parent, "parallel-ports"); | |
504 | if (!ports) | |
49b2f4c5 | 505 | goto rpm_put; |
2b13f7d4 SN |
506 | |
507 | for_each_child_of_node(ports, node) { | |
508 | ret = fimc_md_parse_port_node(fmd, node, index); | |
458a3952 AKC |
509 | if (ret < 0) { |
510 | of_node_put(node); | |
2b13f7d4 | 511 | break; |
458a3952 | 512 | } |
2b13f7d4 SN |
513 | index++; |
514 | } | |
49b2f4c5 SN |
515 | rpm_put: |
516 | pm_runtime_put(fmd->pmf); | |
517 | return ret; | |
2b13f7d4 SN |
518 | } |
519 | ||
e2985a26 SN |
520 | static int __of_get_csis_id(struct device_node *np) |
521 | { | |
522 | u32 reg = 0; | |
523 | ||
524 | np = of_get_child_by_name(np, "port"); | |
525 | if (!np) | |
526 | return -EINVAL; | |
527 | of_property_read_u32(np, "reg", ®); | |
528 | return reg - FIMC_INPUT_MIPI_CSI2_0; | |
529 | } | |
d3953223 SN |
530 | |
531 | /* | |
7b43a6f3 | 532 | * MIPI-CSIS, FIMC and FIMC-LITE platform devices registration. |
d3953223 | 533 | */ |
7b43a6f3 SN |
534 | static int register_fimc_lite_entity(struct fimc_md *fmd, |
535 | struct fimc_lite *fimc_lite) | |
d3953223 | 536 | { |
8163ec0b | 537 | struct v4l2_subdev *sd; |
403dfbec | 538 | struct exynos_media_pipeline *ep; |
afd7348c | 539 | int ret; |
4af81310 | 540 | |
7b43a6f3 SN |
541 | if (WARN_ON(fimc_lite->index >= FIMC_LITE_MAX_DEVS || |
542 | fmd->fimc_lite[fimc_lite->index])) | |
543 | return -EBUSY; | |
d3953223 | 544 | |
7b43a6f3 SN |
545 | sd = &fimc_lite->subdev; |
546 | sd->grp_id = GRP_ID_FLITE; | |
403dfbec SN |
547 | |
548 | ep = fimc_md_pipeline_create(fmd); | |
549 | if (!ep) | |
550 | return -ENOMEM; | |
551 | ||
552 | v4l2_set_subdev_hostdata(sd, ep); | |
693f5c40 SN |
553 | |
554 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); | |
7b43a6f3 SN |
555 | if (!ret) |
556 | fmd->fimc_lite[fimc_lite->index] = fimc_lite; | |
557 | else | |
558 | v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.LITE%d\n", | |
559 | fimc_lite->index); | |
560 | return ret; | |
d3953223 SN |
561 | } |
562 | ||
7b43a6f3 | 563 | static int register_fimc_entity(struct fimc_md *fmd, struct fimc_dev *fimc) |
4af81310 | 564 | { |
7b43a6f3 | 565 | struct v4l2_subdev *sd; |
403dfbec | 566 | struct exynos_media_pipeline *ep; |
4af81310 SN |
567 | int ret; |
568 | ||
7b43a6f3 SN |
569 | if (WARN_ON(fimc->id >= FIMC_MAX_DEVS || fmd->fimc[fimc->id])) |
570 | return -EBUSY; | |
4af81310 | 571 | |
7b43a6f3 SN |
572 | sd = &fimc->vid_cap.subdev; |
573 | sd->grp_id = GRP_ID_FIMC; | |
403dfbec SN |
574 | |
575 | ep = fimc_md_pipeline_create(fmd); | |
576 | if (!ep) | |
577 | return -ENOMEM; | |
578 | ||
579 | v4l2_set_subdev_hostdata(sd, ep); | |
4af81310 | 580 | |
7b43a6f3 SN |
581 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); |
582 | if (!ret) { | |
3e20c345 SN |
583 | if (!fmd->pmf && fimc->pdev) |
584 | fmd->pmf = &fimc->pdev->dev; | |
7b43a6f3 SN |
585 | fmd->fimc[fimc->id] = fimc; |
586 | fimc->vid_cap.user_subdev_api = fmd->user_subdev_api; | |
587 | } else { | |
588 | v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.%d (%d)\n", | |
589 | fimc->id, ret); | |
4af81310 | 590 | } |
7b43a6f3 | 591 | return ret; |
4af81310 SN |
592 | } |
593 | ||
7b43a6f3 SN |
594 | static int register_csis_entity(struct fimc_md *fmd, |
595 | struct platform_device *pdev, | |
596 | struct v4l2_subdev *sd) | |
d3953223 | 597 | { |
7b43a6f3 | 598 | struct device_node *node = pdev->dev.of_node; |
d3953223 SN |
599 | int id, ret; |
600 | ||
e2985a26 | 601 | id = node ? __of_get_csis_id(node) : max(0, pdev->id); |
7b43a6f3 | 602 | |
e2985a26 SN |
603 | if (WARN_ON(id < 0 || id >= CSIS_MAX_ENTITIES)) |
604 | return -ENOENT; | |
7b43a6f3 | 605 | |
e2985a26 SN |
606 | if (WARN_ON(fmd->csis[id].sd)) |
607 | return -EBUSY; | |
d3953223 | 608 | |
588c87be | 609 | sd->grp_id = GRP_ID_CSIS; |
d3953223 | 610 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); |
afd7348c SN |
611 | if (!ret) |
612 | fmd->csis[id].sd = sd; | |
613 | else | |
d3953223 | 614 | v4l2_err(&fmd->v4l2_dev, |
7b43a6f3 | 615 | "Failed to register MIPI-CSIS.%d (%d)\n", id, ret); |
d3953223 SN |
616 | return ret; |
617 | } | |
618 | ||
e781bbe3 SN |
619 | static int register_fimc_is_entity(struct fimc_md *fmd, struct fimc_is *is) |
620 | { | |
621 | struct v4l2_subdev *sd = &is->isp.subdev; | |
34947b8a | 622 | struct exynos_media_pipeline *ep; |
e781bbe3 SN |
623 | int ret; |
624 | ||
34947b8a SN |
625 | /* Allocate pipeline object for the ISP capture video node. */ |
626 | ep = fimc_md_pipeline_create(fmd); | |
627 | if (!ep) | |
628 | return -ENOMEM; | |
629 | ||
630 | v4l2_set_subdev_hostdata(sd, ep); | |
631 | ||
e781bbe3 SN |
632 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); |
633 | if (ret) { | |
634 | v4l2_err(&fmd->v4l2_dev, | |
635 | "Failed to register FIMC-ISP (%d)\n", ret); | |
636 | return ret; | |
637 | } | |
638 | ||
639 | fmd->fimc_is = is; | |
640 | return 0; | |
641 | } | |
642 | ||
7b43a6f3 SN |
643 | static int fimc_md_register_platform_entity(struct fimc_md *fmd, |
644 | struct platform_device *pdev, | |
645 | int plat_entity) | |
d3953223 | 646 | { |
7b43a6f3 SN |
647 | struct device *dev = &pdev->dev; |
648 | int ret = -EPROBE_DEFER; | |
649 | void *drvdata; | |
650 | ||
651 | /* Lock to ensure dev->driver won't change. */ | |
652 | device_lock(dev); | |
653 | ||
654 | if (!dev->driver || !try_module_get(dev->driver->owner)) | |
655 | goto dev_unlock; | |
656 | ||
657 | drvdata = dev_get_drvdata(dev); | |
f58c91ce | 658 | /* Some subdev didn't probe successfully id drvdata is NULL */ |
7b43a6f3 SN |
659 | if (drvdata) { |
660 | switch (plat_entity) { | |
661 | case IDX_FIMC: | |
662 | ret = register_fimc_entity(fmd, drvdata); | |
663 | break; | |
664 | case IDX_FLITE: | |
665 | ret = register_fimc_lite_entity(fmd, drvdata); | |
ecd9acbf | 666 | break; |
7b43a6f3 SN |
667 | case IDX_CSIS: |
668 | ret = register_csis_entity(fmd, pdev, drvdata); | |
669 | break; | |
e781bbe3 SN |
670 | case IDX_IS_ISP: |
671 | ret = register_fimc_is_entity(fmd, drvdata); | |
672 | break; | |
7b43a6f3 SN |
673 | default: |
674 | ret = -ENODEV; | |
ecd9acbf SN |
675 | } |
676 | } | |
d3953223 | 677 | |
7b43a6f3 SN |
678 | module_put(dev->driver->owner); |
679 | dev_unlock: | |
680 | device_unlock(dev); | |
681 | if (ret == -EPROBE_DEFER) | |
682 | dev_info(&fmd->pdev->dev, "deferring %s device registration\n", | |
683 | dev_name(dev)); | |
684 | else if (ret < 0) | |
685 | dev_err(&fmd->pdev->dev, "%s device registration failed (%d)\n", | |
686 | dev_name(dev), ret); | |
687 | return ret; | |
688 | } | |
689 | ||
e2985a26 | 690 | /* Register FIMC, FIMC-LITE and CSIS media entities */ |
49b2f4c5 SN |
691 | static int fimc_md_register_platform_entities(struct fimc_md *fmd, |
692 | struct device_node *parent) | |
e2985a26 SN |
693 | { |
694 | struct device_node *node; | |
695 | int ret = 0; | |
696 | ||
697 | for_each_available_child_of_node(parent, node) { | |
698 | struct platform_device *pdev; | |
699 | int plat_entity = -1; | |
700 | ||
701 | pdev = of_find_device_by_node(node); | |
702 | if (!pdev) | |
703 | continue; | |
704 | ||
705 | /* If driver of any entity isn't ready try all again later. */ | |
706 | if (!strcmp(node->name, CSIS_OF_NODE_NAME)) | |
707 | plat_entity = IDX_CSIS; | |
e781bbe3 SN |
708 | else if (!strcmp(node->name, FIMC_IS_OF_NODE_NAME)) |
709 | plat_entity = IDX_IS_ISP; | |
e2985a26 SN |
710 | else if (!strcmp(node->name, FIMC_LITE_OF_NODE_NAME)) |
711 | plat_entity = IDX_FLITE; | |
712 | else if (!strcmp(node->name, FIMC_OF_NODE_NAME) && | |
713 | !of_property_read_bool(node, "samsung,lcd-wb")) | |
714 | plat_entity = IDX_FIMC; | |
715 | ||
716 | if (plat_entity >= 0) | |
717 | ret = fimc_md_register_platform_entity(fmd, pdev, | |
718 | plat_entity); | |
719 | put_device(&pdev->dev); | |
458a3952 AKC |
720 | if (ret < 0) { |
721 | of_node_put(node); | |
e2985a26 | 722 | break; |
458a3952 | 723 | } |
e2985a26 SN |
724 | } |
725 | ||
726 | return ret; | |
727 | } | |
e2985a26 | 728 | |
d3953223 SN |
729 | static void fimc_md_unregister_entities(struct fimc_md *fmd) |
730 | { | |
731 | int i; | |
732 | ||
733 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
403dfbec SN |
734 | struct fimc_dev *dev = fmd->fimc[i]; |
735 | if (dev == NULL) | |
d3953223 | 736 | continue; |
403dfbec SN |
737 | v4l2_device_unregister_subdev(&dev->vid_cap.subdev); |
738 | dev->vid_cap.ve.pipe = NULL; | |
d3953223 SN |
739 | fmd->fimc[i] = NULL; |
740 | } | |
4af81310 | 741 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { |
403dfbec SN |
742 | struct fimc_lite *dev = fmd->fimc_lite[i]; |
743 | if (dev == NULL) | |
4af81310 | 744 | continue; |
403dfbec SN |
745 | v4l2_device_unregister_subdev(&dev->subdev); |
746 | dev->ve.pipe = NULL; | |
4af81310 SN |
747 | fmd->fimc_lite[i] = NULL; |
748 | } | |
d3953223 SN |
749 | for (i = 0; i < CSIS_MAX_ENTITIES; i++) { |
750 | if (fmd->csis[i].sd == NULL) | |
751 | continue; | |
752 | v4l2_device_unregister_subdev(fmd->csis[i].sd); | |
753 | fmd->csis[i].sd = NULL; | |
754 | } | |
e41a35cb SN |
755 | |
756 | if (fmd->fimc_is) | |
757 | v4l2_device_unregister_subdev(&fmd->fimc_is->isp.subdev); | |
758 | ||
7b43a6f3 | 759 | v4l2_info(&fmd->v4l2_dev, "Unregistered all entities\n"); |
d3953223 SN |
760 | } |
761 | ||
d3953223 SN |
762 | /** |
763 | * __fimc_md_create_fimc_links - create links to all FIMC entities | |
764 | * @fmd: fimc media device | |
765 | * @source: the source entity to create links to all fimc entities from | |
766 | * @sensor: sensor subdev linked to FIMC[fimc_id] entity, may be null | |
767 | * @pad: the source entity pad index | |
d0da3c35 | 768 | * @link_mask: bitmask of the fimc devices for which link should be enabled |
d3953223 | 769 | */ |
4af81310 SN |
770 | static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, |
771 | struct media_entity *source, | |
772 | struct v4l2_subdev *sensor, | |
d0da3c35 | 773 | int pad, int link_mask) |
d3953223 | 774 | { |
4c8f0629 | 775 | struct fimc_source_info *si = NULL; |
d3953223 | 776 | struct media_entity *sink; |
4af81310 | 777 | unsigned int flags = 0; |
f998bb7b | 778 | int i, ret = 0; |
d3953223 | 779 | |
f998bb7b SN |
780 | if (sensor) { |
781 | si = v4l2_get_subdev_hostdata(sensor); | |
782 | /* Skip direct FIMC links in the logical FIMC-IS sensor path */ | |
4c8f0629 | 783 | if (si && si->fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) |
f998bb7b SN |
784 | ret = 1; |
785 | } | |
786 | ||
787 | for (i = 0; !ret && i < FIMC_MAX_DEVS; i++) { | |
d3953223 | 788 | if (!fmd->fimc[i]) |
4af81310 | 789 | continue; |
d3953223 SN |
790 | /* |
791 | * Some FIMC variants are not fitted with camera capture | |
792 | * interface. Skip creating a link from sensor for those. | |
793 | */ | |
4af81310 | 794 | if (!fmd->fimc[i]->variant->has_cam_if) |
d3953223 SN |
795 | continue; |
796 | ||
d0da3c35 | 797 | flags = ((1 << i) & link_mask) ? MEDIA_LNK_FL_ENABLED : 0; |
4af81310 | 798 | |
693f5c40 | 799 | sink = &fmd->fimc[i]->vid_cap.subdev.entity; |
8df00a15 | 800 | ret = media_create_pad_link(source, pad, sink, |
88fa8311 | 801 | FIMC_SD_PAD_SINK_CAM, flags); |
d3953223 SN |
802 | if (ret) |
803 | return ret; | |
804 | ||
237e0265 SN |
805 | /* Notify FIMC capture subdev entity */ |
806 | ret = media_entity_call(sink, link_setup, &sink->pads[0], | |
807 | &source->pads[pad], flags); | |
808 | if (ret) | |
809 | break; | |
810 | ||
542fb082 | 811 | v4l2_info(&fmd->v4l2_dev, "created link [%s] %c> [%s]\n", |
d3953223 | 812 | source->name, flags ? '=' : '-', sink->name); |
d3953223 | 813 | } |
4af81310 SN |
814 | |
815 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { | |
816 | if (!fmd->fimc_lite[i]) | |
817 | continue; | |
818 | ||
4af81310 | 819 | sink = &fmd->fimc_lite[i]->subdev.entity; |
8df00a15 | 820 | ret = media_create_pad_link(source, pad, sink, |
f998bb7b | 821 | FLITE_SD_PAD_SINK, 0); |
4af81310 SN |
822 | if (ret) |
823 | return ret; | |
824 | ||
825 | /* Notify FIMC-LITE subdev entity */ | |
826 | ret = media_entity_call(sink, link_setup, &sink->pads[0], | |
f998bb7b | 827 | &source->pads[pad], 0); |
4af81310 SN |
828 | if (ret) |
829 | break; | |
830 | ||
f998bb7b SN |
831 | v4l2_info(&fmd->v4l2_dev, "created link [%s] -> [%s]\n", |
832 | source->name, sink->name); | |
4af81310 | 833 | } |
d3953223 SN |
834 | return 0; |
835 | } | |
836 | ||
4af81310 SN |
837 | /* Create links from FIMC-LITE source pads to other entities */ |
838 | static int __fimc_md_create_flite_source_links(struct fimc_md *fmd) | |
839 | { | |
840 | struct media_entity *source, *sink; | |
a26860bd | 841 | int i, ret = 0; |
4af81310 SN |
842 | |
843 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { | |
844 | struct fimc_lite *fimc = fmd->fimc_lite[i]; | |
f998bb7b | 845 | |
4af81310 SN |
846 | if (fimc == NULL) |
847 | continue; | |
f998bb7b | 848 | |
4af81310 | 849 | source = &fimc->subdev.entity; |
bc7584b0 | 850 | sink = &fimc->ve.vdev.entity; |
4af81310 | 851 | /* FIMC-LITE's subdev and video node */ |
8df00a15 | 852 | ret = media_create_pad_link(source, FLITE_SD_PAD_SOURCE_DMA, |
f998bb7b SN |
853 | sink, 0, 0); |
854 | if (ret) | |
855 | break; | |
856 | /* Link from FIMC-LITE to IS-ISP subdev */ | |
857 | sink = &fmd->fimc_is->isp.subdev.entity; | |
8df00a15 | 858 | ret = media_create_pad_link(source, FLITE_SD_PAD_SOURCE_ISP, |
f998bb7b | 859 | sink, 0, 0); |
4af81310 SN |
860 | if (ret) |
861 | break; | |
f998bb7b SN |
862 | } |
863 | ||
864 | return ret; | |
865 | } | |
866 | ||
867 | /* Create FIMC-IS links */ | |
868 | static int __fimc_md_create_fimc_is_links(struct fimc_md *fmd) | |
869 | { | |
34947b8a | 870 | struct fimc_isp *isp = &fmd->fimc_is->isp; |
f998bb7b SN |
871 | struct media_entity *source, *sink; |
872 | int i, ret; | |
873 | ||
34947b8a | 874 | source = &isp->subdev.entity; |
f998bb7b SN |
875 | |
876 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
877 | if (fmd->fimc[i] == NULL) | |
878 | continue; | |
879 | ||
34947b8a | 880 | /* Link from FIMC-IS-ISP subdev to FIMC */ |
f998bb7b | 881 | sink = &fmd->fimc[i]->vid_cap.subdev.entity; |
8df00a15 | 882 | ret = media_create_pad_link(source, FIMC_ISP_SD_PAD_SRC_FIFO, |
f998bb7b SN |
883 | sink, FIMC_SD_PAD_SINK_FIFO, 0); |
884 | if (ret) | |
885 | return ret; | |
4af81310 SN |
886 | } |
887 | ||
34947b8a SN |
888 | /* Link from FIMC-IS-ISP subdev to fimc-is-isp.capture video node */ |
889 | sink = &isp->video_capture.ve.vdev.entity; | |
890 | ||
891 | /* Skip this link if the fimc-is-isp video node driver isn't built-in */ | |
892 | if (sink->num_pads == 0) | |
893 | return 0; | |
894 | ||
8df00a15 | 895 | return media_create_pad_link(source, FIMC_ISP_SD_PAD_SRC_DMA, |
34947b8a | 896 | sink, 0, 0); |
4af81310 SN |
897 | } |
898 | ||
d3953223 SN |
899 | /** |
900 | * fimc_md_create_links - create default links between registered entities | |
901 | * | |
902 | * Parallel interface sensor entities are connected directly to FIMC capture | |
903 | * entities. The sensors using MIPI CSIS bus are connected through immutable | |
904 | * link with CSI receiver entity specified by mux_id. Any registered CSIS | |
905 | * entity has a link to each registered FIMC capture entity. Enabled links | |
906 | * are created by default between each subsequent registered sensor and | |
907 | * subsequent FIMC capture entity. The number of default active links is | |
908 | * determined by the number of available sensors or FIMC entities, | |
909 | * whichever is less. | |
910 | */ | |
911 | static int fimc_md_create_links(struct fimc_md *fmd) | |
912 | { | |
a8697ec8 | 913 | struct v4l2_subdev *csi_sensors[CSIS_MAX_ENTITIES] = { NULL }; |
d3953223 | 914 | struct v4l2_subdev *sensor, *csis; |
56bc911a | 915 | struct fimc_source_info *pdata; |
237e0265 | 916 | struct media_entity *source, *sink; |
d0da3c35 SN |
917 | int i, pad, fimc_id = 0, ret = 0; |
918 | u32 flags, link_mask = 0; | |
d3953223 SN |
919 | |
920 | for (i = 0; i < fmd->num_sensors; i++) { | |
921 | if (fmd->sensor[i].subdev == NULL) | |
922 | continue; | |
923 | ||
924 | sensor = fmd->sensor[i].subdev; | |
4c8f0629 SN |
925 | pdata = v4l2_get_subdev_hostdata(sensor); |
926 | if (!pdata) | |
d3953223 SN |
927 | continue; |
928 | ||
929 | source = NULL; | |
d3953223 | 930 | |
56bc911a SN |
931 | switch (pdata->sensor_bus_type) { |
932 | case FIMC_BUS_TYPE_MIPI_CSI2: | |
d3953223 SN |
933 | if (WARN(pdata->mux_id >= CSIS_MAX_ENTITIES, |
934 | "Wrong CSI channel id: %d\n", pdata->mux_id)) | |
935 | return -EINVAL; | |
936 | ||
937 | csis = fmd->csis[pdata->mux_id].sd; | |
938 | if (WARN(csis == NULL, | |
939 | "MIPI-CSI interface specified " | |
940 | "but s5p-csis module is not loaded!\n")) | |
d12392ec | 941 | return -EINVAL; |
d3953223 | 942 | |
1c9f5bd7 | 943 | pad = sensor->entity.num_pads - 1; |
8df00a15 | 944 | ret = media_create_pad_link(&sensor->entity, pad, |
d3953223 SN |
945 | &csis->entity, CSIS_PAD_SINK, |
946 | MEDIA_LNK_FL_IMMUTABLE | | |
947 | MEDIA_LNK_FL_ENABLED); | |
948 | if (ret) | |
949 | return ret; | |
950 | ||
969e877c | 951 | v4l2_info(&fmd->v4l2_dev, "created link [%s] => [%s]\n", |
d3953223 SN |
952 | sensor->entity.name, csis->entity.name); |
953 | ||
4af81310 | 954 | source = NULL; |
5d33ee92 | 955 | csi_sensors[pdata->mux_id] = sensor; |
d3953223 SN |
956 | break; |
957 | ||
56bc911a | 958 | case FIMC_BUS_TYPE_ITU_601...FIMC_BUS_TYPE_ITU_656: |
d3953223 SN |
959 | source = &sensor->entity; |
960 | pad = 0; | |
961 | break; | |
962 | ||
963 | default: | |
964 | v4l2_err(&fmd->v4l2_dev, "Wrong bus_type: %x\n", | |
56bc911a | 965 | pdata->sensor_bus_type); |
d3953223 SN |
966 | return -EINVAL; |
967 | } | |
968 | if (source == NULL) | |
969 | continue; | |
970 | ||
d0da3c35 | 971 | link_mask = 1 << fimc_id++; |
4af81310 | 972 | ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor, |
d0da3c35 | 973 | pad, link_mask); |
4af81310 SN |
974 | } |
975 | ||
a8697ec8 | 976 | for (i = 0; i < CSIS_MAX_ENTITIES; i++) { |
4af81310 SN |
977 | if (fmd->csis[i].sd == NULL) |
978 | continue; | |
f998bb7b | 979 | |
4af81310 SN |
980 | source = &fmd->csis[i].sd->entity; |
981 | pad = CSIS_PAD_SOURCE; | |
5d33ee92 | 982 | sensor = csi_sensors[i]; |
4af81310 | 983 | |
d0da3c35 | 984 | link_mask = 1 << fimc_id++; |
5d33ee92 | 985 | ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor, |
d0da3c35 | 986 | pad, link_mask); |
d3953223 | 987 | } |
4af81310 | 988 | |
237e0265 SN |
989 | /* Create immutable links between each FIMC's subdev and video node */ |
990 | flags = MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED; | |
991 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
992 | if (!fmd->fimc[i]) | |
993 | continue; | |
f998bb7b | 994 | |
693f5c40 | 995 | source = &fmd->fimc[i]->vid_cap.subdev.entity; |
bc7584b0 | 996 | sink = &fmd->fimc[i]->vid_cap.ve.vdev.entity; |
f998bb7b | 997 | |
8df00a15 | 998 | ret = media_create_pad_link(source, FIMC_SD_PAD_SOURCE, |
237e0265 SN |
999 | sink, 0, flags); |
1000 | if (ret) | |
1001 | break; | |
1002 | } | |
1003 | ||
f998bb7b SN |
1004 | ret = __fimc_md_create_flite_source_links(fmd); |
1005 | if (ret < 0) | |
1006 | return ret; | |
1007 | ||
1008 | if (fmd->use_isp) | |
1009 | ret = __fimc_md_create_fimc_is_links(fmd); | |
1010 | ||
1011 | return ret; | |
d3953223 SN |
1012 | } |
1013 | ||
1014 | /* | |
056f4f30 | 1015 | * The peripheral sensor and CAM_BLK (PIXELASYNCMx) clocks management. |
d3953223 | 1016 | */ |
0e23cbbe SN |
1017 | static void fimc_md_put_clocks(struct fimc_md *fmd) |
1018 | { | |
1019 | int i = FIMC_MAX_CAMCLKS; | |
1020 | ||
1021 | while (--i >= 0) { | |
1022 | if (IS_ERR(fmd->camclk[i].clock)) | |
1023 | continue; | |
0e23cbbe SN |
1024 | clk_put(fmd->camclk[i].clock); |
1025 | fmd->camclk[i].clock = ERR_PTR(-EINVAL); | |
1026 | } | |
056f4f30 SN |
1027 | |
1028 | /* Writeback (PIXELASYNCMx) clocks */ | |
1029 | for (i = 0; i < FIMC_MAX_WBCLKS; i++) { | |
1030 | if (IS_ERR(fmd->wbclk[i])) | |
1031 | continue; | |
1032 | clk_put(fmd->wbclk[i]); | |
1033 | fmd->wbclk[i] = ERR_PTR(-EINVAL); | |
1034 | } | |
0e23cbbe SN |
1035 | } |
1036 | ||
d3953223 SN |
1037 | static int fimc_md_get_clocks(struct fimc_md *fmd) |
1038 | { | |
49b2f4c5 | 1039 | struct device *dev = &fmd->pdev->dev; |
d3953223 SN |
1040 | char clk_name[32]; |
1041 | struct clk *clock; | |
044c372a | 1042 | int i, ret = 0; |
0e23cbbe SN |
1043 | |
1044 | for (i = 0; i < FIMC_MAX_CAMCLKS; i++) | |
1045 | fmd->camclk[i].clock = ERR_PTR(-EINVAL); | |
1046 | ||
d3953223 SN |
1047 | for (i = 0; i < FIMC_MAX_CAMCLKS; i++) { |
1048 | snprintf(clk_name, sizeof(clk_name), "sclk_cam%u", i); | |
0e23cbbe SN |
1049 | clock = clk_get(dev, clk_name); |
1050 | ||
dc3ae328 | 1051 | if (IS_ERR(clock)) { |
49b2f4c5 | 1052 | dev_err(dev, "Failed to get clock: %s\n", clk_name); |
0e23cbbe SN |
1053 | ret = PTR_ERR(clock); |
1054 | break; | |
1055 | } | |
d3953223 SN |
1056 | fmd->camclk[i].clock = clock; |
1057 | } | |
0e23cbbe SN |
1058 | if (ret) |
1059 | fimc_md_put_clocks(fmd); | |
d3953223 | 1060 | |
056f4f30 SN |
1061 | if (!fmd->use_isp) |
1062 | return 0; | |
1063 | /* | |
1064 | * For now get only PIXELASYNCM1 clock (Writeback B/ISP), | |
1065 | * leave PIXELASYNCM0 out for the LCD Writeback driver. | |
1066 | */ | |
1067 | fmd->wbclk[CLK_IDX_WB_A] = ERR_PTR(-EINVAL); | |
1068 | ||
1069 | for (i = CLK_IDX_WB_B; i < FIMC_MAX_WBCLKS; i++) { | |
1070 | snprintf(clk_name, sizeof(clk_name), "pxl_async%u", i); | |
1071 | clock = clk_get(dev, clk_name); | |
1072 | if (IS_ERR(clock)) { | |
1073 | v4l2_err(&fmd->v4l2_dev, "Failed to get clock: %s\n", | |
1074 | clk_name); | |
1075 | ret = PTR_ERR(clock); | |
1076 | break; | |
1077 | } | |
1078 | fmd->wbclk[i] = clock; | |
1079 | } | |
1080 | if (ret) | |
1081 | fimc_md_put_clocks(fmd); | |
1082 | ||
0e23cbbe | 1083 | return ret; |
d3953223 SN |
1084 | } |
1085 | ||
d3775fa7 | 1086 | static int __fimc_md_modify_pipeline(struct media_entity *entity, bool enable) |
d3953223 | 1087 | { |
403dfbec | 1088 | struct exynos_video_entity *ve; |
d3775fa7 | 1089 | struct fimc_pipeline *p; |
403dfbec | 1090 | struct video_device *vdev; |
d3775fa7 | 1091 | int ret; |
d3953223 | 1092 | |
d3775fa7 SN |
1093 | vdev = media_entity_to_video_device(entity); |
1094 | if (vdev->entity.use_count == 0) | |
d3953223 SN |
1095 | return 0; |
1096 | ||
403dfbec | 1097 | ve = vdev_to_exynos_video_entity(vdev); |
d3775fa7 SN |
1098 | p = to_fimc_pipeline(ve->pipe); |
1099 | /* | |
1100 | * Nothing to do if we are disabling the pipeline, some link | |
1101 | * has been disconnected and p->subdevs array is cleared now. | |
1102 | */ | |
1103 | if (!enable && p->subdevs[IDX_SENSOR] == NULL) | |
1104 | return 0; | |
403dfbec | 1105 | |
d3775fa7 SN |
1106 | if (enable) |
1107 | ret = __fimc_pipeline_open(ve->pipe, entity, true); | |
1108 | else | |
1109 | ret = __fimc_pipeline_close(ve->pipe); | |
131b6c61 | 1110 | |
d3775fa7 SN |
1111 | if (ret == 0 && !enable) |
1112 | memset(p->subdevs, 0, sizeof(p->subdevs)); | |
1113 | ||
1114 | return ret; | |
1115 | } | |
1116 | ||
d10c9894 | 1117 | /* Locking: called with entity->graph_obj.mdev->graph_mutex mutex held. */ |
fd7e5309 SA |
1118 | static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable, |
1119 | struct media_entity_graph *graph) | |
d3775fa7 SN |
1120 | { |
1121 | struct media_entity *entity_err = entity; | |
d3775fa7 SN |
1122 | int ret; |
1123 | ||
1124 | /* | |
1125 | * Walk current graph and call the pipeline open/close routine for each | |
1126 | * opened video node that belongs to the graph of entities connected | |
1127 | * through active links. This is needed as we cannot power on/off the | |
1128 | * subdevs in random order. | |
1129 | */ | |
fd7e5309 | 1130 | media_entity_graph_walk_start(graph, entity); |
d3775fa7 | 1131 | |
fd7e5309 | 1132 | while ((entity = media_entity_graph_walk_next(graph))) { |
3efdf62c | 1133 | if (!is_media_entity_v4l2_io(entity)) |
d3775fa7 SN |
1134 | continue; |
1135 | ||
1136 | ret = __fimc_md_modify_pipeline(entity, enable); | |
1137 | ||
1138 | if (ret < 0) | |
1139 | goto err; | |
1140 | } | |
1141 | ||
1142 | return 0; | |
d3775fa7 | 1143 | |
fd7e5309 SA |
1144 | err: |
1145 | media_entity_graph_walk_start(graph, entity_err); | |
1146 | ||
1147 | while ((entity_err = media_entity_graph_walk_next(graph))) { | |
3efdf62c | 1148 | if (!is_media_entity_v4l2_io(entity_err)) |
d3775fa7 SN |
1149 | continue; |
1150 | ||
1151 | __fimc_md_modify_pipeline(entity_err, !enable); | |
1152 | ||
1153 | if (entity_err == entity) | |
1154 | break; | |
1155 | } | |
1156 | ||
1157 | return ret; | |
1158 | } | |
1159 | ||
1160 | static int fimc_md_link_notify(struct media_link *link, unsigned int flags, | |
1161 | unsigned int notification) | |
1162 | { | |
fd7e5309 SA |
1163 | struct media_entity_graph *graph = |
1164 | &container_of(link->graph_obj.mdev, struct fimc_md, | |
1165 | media_dev)->link_setup_graph; | |
d3775fa7 SN |
1166 | struct media_entity *sink = link->sink->entity; |
1167 | int ret = 0; | |
1168 | ||
1169 | /* Before link disconnection */ | |
1170 | if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH) { | |
fd7e5309 SA |
1171 | ret = media_entity_graph_walk_init(graph, |
1172 | link->graph_obj.mdev); | |
1173 | if (ret) | |
1174 | return ret; | |
d3775fa7 | 1175 | if (!(flags & MEDIA_LNK_FL_ENABLED)) |
fd7e5309 | 1176 | ret = __fimc_md_modify_pipelines(sink, false, graph); |
cdf58a6f | 1177 | #if 0 |
d3775fa7 | 1178 | else |
cdf58a6f MCC |
1179 | /* TODO: Link state change validation */ |
1180 | #endif | |
d3775fa7 | 1181 | /* After link activation */ |
fd7e5309 SA |
1182 | } else if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH) { |
1183 | if (link->flags & MEDIA_LNK_FL_ENABLED) | |
1184 | ret = __fimc_md_modify_pipelines(sink, true, graph); | |
1185 | media_entity_graph_walk_cleanup(graph); | |
d3953223 | 1186 | } |
740ad921 | 1187 | |
d3775fa7 | 1188 | return ret ? -EPIPE : 0; |
d3953223 SN |
1189 | } |
1190 | ||
1191 | static ssize_t fimc_md_sysfs_show(struct device *dev, | |
1192 | struct device_attribute *attr, char *buf) | |
1193 | { | |
1194 | struct platform_device *pdev = to_platform_device(dev); | |
1195 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1196 | ||
1197 | if (fmd->user_subdev_api) | |
1198 | return strlcpy(buf, "Sub-device API (sub-dev)\n", PAGE_SIZE); | |
1199 | ||
1200 | return strlcpy(buf, "V4L2 video node only API (vid-dev)\n", PAGE_SIZE); | |
1201 | } | |
1202 | ||
1203 | static ssize_t fimc_md_sysfs_store(struct device *dev, | |
1204 | struct device_attribute *attr, | |
1205 | const char *buf, size_t count) | |
1206 | { | |
1207 | struct platform_device *pdev = to_platform_device(dev); | |
1208 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1209 | bool subdev_api; | |
1210 | int i; | |
1211 | ||
1212 | if (!strcmp(buf, "vid-dev\n")) | |
1213 | subdev_api = false; | |
1214 | else if (!strcmp(buf, "sub-dev\n")) | |
1215 | subdev_api = true; | |
1216 | else | |
1217 | return count; | |
1218 | ||
1219 | fmd->user_subdev_api = subdev_api; | |
1220 | for (i = 0; i < FIMC_MAX_DEVS; i++) | |
1221 | if (fmd->fimc[i]) | |
1222 | fmd->fimc[i]->vid_cap.user_subdev_api = subdev_api; | |
1223 | return count; | |
1224 | } | |
1225 | /* | |
1226 | * This device attribute is to select video pipeline configuration method. | |
1227 | * There are following valid values: | |
1228 | * vid-dev - for V4L2 video node API only, subdevice will be configured | |
1229 | * by the host driver. | |
1230 | * sub-dev - for media controller API, subdevs must be configured in user | |
1231 | * space before starting streaming. | |
1232 | */ | |
1233 | static DEVICE_ATTR(subdev_conf_mode, S_IWUSR | S_IRUGO, | |
1234 | fimc_md_sysfs_show, fimc_md_sysfs_store); | |
1235 | ||
4163851f SN |
1236 | static int fimc_md_get_pinctrl(struct fimc_md *fmd) |
1237 | { | |
1238 | struct device *dev = &fmd->pdev->dev; | |
1239 | struct fimc_pinctrl *pctl = &fmd->pinctl; | |
1240 | ||
1241 | pctl->pinctrl = devm_pinctrl_get(dev); | |
1242 | if (IS_ERR(pctl->pinctrl)) | |
1243 | return PTR_ERR(pctl->pinctrl); | |
1244 | ||
1245 | pctl->state_default = pinctrl_lookup_state(pctl->pinctrl, | |
1246 | PINCTRL_STATE_DEFAULT); | |
1247 | if (IS_ERR(pctl->state_default)) | |
1248 | return PTR_ERR(pctl->state_default); | |
1249 | ||
1250 | pctl->state_idle = pinctrl_lookup_state(pctl->pinctrl, | |
1251 | PINCTRL_STATE_IDLE); | |
1252 | return 0; | |
1253 | } | |
1254 | ||
d3f5e0c5 SN |
1255 | static int cam_clk_prepare(struct clk_hw *hw) |
1256 | { | |
1257 | struct cam_clk *camclk = to_cam_clk(hw); | |
1258 | int ret; | |
1259 | ||
1260 | if (camclk->fmd->pmf == NULL) | |
1261 | return -ENODEV; | |
1262 | ||
1263 | ret = pm_runtime_get_sync(camclk->fmd->pmf); | |
1264 | return ret < 0 ? ret : 0; | |
1265 | } | |
1266 | ||
1267 | static void cam_clk_unprepare(struct clk_hw *hw) | |
1268 | { | |
1269 | struct cam_clk *camclk = to_cam_clk(hw); | |
1270 | ||
1271 | if (camclk->fmd->pmf == NULL) | |
1272 | return; | |
1273 | ||
1274 | pm_runtime_put_sync(camclk->fmd->pmf); | |
1275 | } | |
1276 | ||
1277 | static const struct clk_ops cam_clk_ops = { | |
1278 | .prepare = cam_clk_prepare, | |
1279 | .unprepare = cam_clk_unprepare, | |
1280 | }; | |
1281 | ||
1282 | static void fimc_md_unregister_clk_provider(struct fimc_md *fmd) | |
1283 | { | |
1284 | struct cam_clk_provider *cp = &fmd->clk_provider; | |
1285 | unsigned int i; | |
1286 | ||
1287 | if (cp->of_node) | |
1288 | of_clk_del_provider(cp->of_node); | |
1289 | ||
1290 | for (i = 0; i < cp->num_clocks; i++) | |
1291 | clk_unregister(cp->clks[i]); | |
1292 | } | |
1293 | ||
1294 | static int fimc_md_register_clk_provider(struct fimc_md *fmd) | |
1295 | { | |
1296 | struct cam_clk_provider *cp = &fmd->clk_provider; | |
1297 | struct device *dev = &fmd->pdev->dev; | |
1298 | int i, ret; | |
1299 | ||
1300 | for (i = 0; i < FIMC_MAX_CAMCLKS; i++) { | |
1301 | struct cam_clk *camclk = &cp->camclk[i]; | |
1302 | struct clk_init_data init; | |
1303 | const char *p_name; | |
1304 | ||
1305 | ret = of_property_read_string_index(dev->of_node, | |
1306 | "clock-output-names", i, &init.name); | |
1307 | if (ret < 0) | |
1308 | break; | |
1309 | ||
1310 | p_name = __clk_get_name(fmd->camclk[i].clock); | |
1311 | ||
1312 | /* It's safe since clk_register() will duplicate the string. */ | |
1313 | init.parent_names = &p_name; | |
1314 | init.num_parents = 1; | |
1315 | init.ops = &cam_clk_ops; | |
1316 | init.flags = CLK_SET_RATE_PARENT; | |
1317 | camclk->hw.init = &init; | |
1318 | camclk->fmd = fmd; | |
1319 | ||
1320 | cp->clks[i] = clk_register(NULL, &camclk->hw); | |
1321 | if (IS_ERR(cp->clks[i])) { | |
1322 | dev_err(dev, "failed to register clock: %s (%ld)\n", | |
1323 | init.name, PTR_ERR(cp->clks[i])); | |
1324 | ret = PTR_ERR(cp->clks[i]); | |
1325 | goto err; | |
1326 | } | |
1327 | cp->num_clocks++; | |
1328 | } | |
1329 | ||
1330 | if (cp->num_clocks == 0) { | |
1331 | dev_warn(dev, "clk provider not registered\n"); | |
1332 | return 0; | |
1333 | } | |
1334 | ||
1335 | cp->clk_data.clks = cp->clks; | |
1336 | cp->clk_data.clk_num = cp->num_clocks; | |
1337 | cp->of_node = dev->of_node; | |
1338 | ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get, | |
1339 | &cp->clk_data); | |
1340 | if (ret == 0) | |
1341 | return 0; | |
1342 | err: | |
1343 | fimc_md_unregister_clk_provider(fmd); | |
1344 | return ret; | |
1345 | } | |
d3f5e0c5 | 1346 | |
fa91f105 SN |
1347 | static int subdev_notifier_bound(struct v4l2_async_notifier *notifier, |
1348 | struct v4l2_subdev *subdev, | |
1349 | struct v4l2_async_subdev *asd) | |
1350 | { | |
1351 | struct fimc_md *fmd = notifier_to_fimc_md(notifier); | |
1352 | struct fimc_sensor_info *si = NULL; | |
1353 | int i; | |
1354 | ||
1355 | /* Find platform data for this sensor subdev */ | |
1356 | for (i = 0; i < ARRAY_SIZE(fmd->sensor); i++) | |
1357 | if (fmd->sensor[i].asd.match.of.node == subdev->dev->of_node) | |
1358 | si = &fmd->sensor[i]; | |
1359 | ||
1360 | if (si == NULL) | |
1361 | return -EINVAL; | |
1362 | ||
1363 | v4l2_set_subdev_hostdata(subdev, &si->pdata); | |
1364 | ||
1365 | if (si->pdata.fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) | |
1366 | subdev->grp_id = GRP_ID_FIMC_IS_SENSOR; | |
1367 | else | |
1368 | subdev->grp_id = GRP_ID_SENSOR; | |
1369 | ||
1370 | si->subdev = subdev; | |
1371 | ||
1372 | v4l2_info(&fmd->v4l2_dev, "Registered sensor subdevice: %s (%d)\n", | |
1373 | subdev->name, fmd->num_sensors); | |
1374 | ||
1375 | fmd->num_sensors++; | |
1376 | ||
1377 | return 0; | |
1378 | } | |
1379 | ||
1380 | static int subdev_notifier_complete(struct v4l2_async_notifier *notifier) | |
1381 | { | |
1382 | struct fimc_md *fmd = notifier_to_fimc_md(notifier); | |
1383 | int ret; | |
1384 | ||
1385 | mutex_lock(&fmd->media_dev.graph_mutex); | |
1386 | ||
1387 | ret = fimc_md_create_links(fmd); | |
1388 | if (ret < 0) | |
1389 | goto unlock; | |
1390 | ||
1391 | ret = v4l2_device_register_subdev_nodes(&fmd->v4l2_dev); | |
1392 | unlock: | |
1393 | mutex_unlock(&fmd->media_dev.graph_mutex); | |
9832e155 JMC |
1394 | if (ret < 0) |
1395 | return ret; | |
1396 | ||
1397 | return media_device_register(&fmd->media_dev); | |
fa91f105 SN |
1398 | } |
1399 | ||
ecd9acbf | 1400 | static int fimc_md_probe(struct platform_device *pdev) |
d3953223 | 1401 | { |
e2985a26 | 1402 | struct device *dev = &pdev->dev; |
d3953223 SN |
1403 | struct v4l2_device *v4l2_dev; |
1404 | struct fimc_md *fmd; | |
1405 | int ret; | |
1406 | ||
e2985a26 | 1407 | fmd = devm_kzalloc(dev, sizeof(*fmd), GFP_KERNEL); |
d3953223 SN |
1408 | if (!fmd) |
1409 | return -ENOMEM; | |
1410 | ||
1411 | spin_lock_init(&fmd->slock); | |
403dfbec | 1412 | INIT_LIST_HEAD(&fmd->pipelines); |
49b2f4c5 | 1413 | fmd->pdev = pdev; |
d3953223 SN |
1414 | |
1415 | strlcpy(fmd->media_dev.model, "SAMSUNG S5P FIMC", | |
1416 | sizeof(fmd->media_dev.model)); | |
1417 | fmd->media_dev.link_notify = fimc_md_link_notify; | |
e2985a26 | 1418 | fmd->media_dev.dev = dev; |
d3953223 SN |
1419 | |
1420 | v4l2_dev = &fmd->v4l2_dev; | |
1421 | v4l2_dev->mdev = &fmd->media_dev; | |
e1d72f4d | 1422 | v4l2_dev->notify = fimc_sensor_notify; |
e2985a26 | 1423 | strlcpy(v4l2_dev->name, "s5p-fimc-md", sizeof(v4l2_dev->name)); |
d3953223 | 1424 | |
e781bbe3 | 1425 | fmd->use_isp = fimc_md_is_isp_available(dev->of_node); |
49b2f4c5 | 1426 | fmd->user_subdev_api = true; |
e781bbe3 | 1427 | |
2e7508e4 MCC |
1428 | media_device_init(&fmd->media_dev); |
1429 | ||
e2985a26 | 1430 | ret = v4l2_device_register(dev, &fmd->v4l2_dev); |
d3953223 SN |
1431 | if (ret < 0) { |
1432 | v4l2_err(v4l2_dev, "Failed to register v4l2_device: %d\n", ret); | |
6d91a51a | 1433 | return ret; |
d3953223 | 1434 | } |
d3f5e0c5 | 1435 | |
d3953223 SN |
1436 | ret = fimc_md_get_clocks(fmd); |
1437 | if (ret) | |
fa91f105 | 1438 | goto err_md; |
d3953223 | 1439 | |
4163851f SN |
1440 | ret = fimc_md_get_pinctrl(fmd); |
1441 | if (ret < 0) { | |
1442 | if (ret != EPROBE_DEFER) | |
1443 | dev_err(dev, "Failed to get pinctrl: %d\n", ret); | |
fa91f105 | 1444 | goto err_clk; |
4163851f SN |
1445 | } |
1446 | ||
fa91f105 SN |
1447 | platform_set_drvdata(pdev, fmd); |
1448 | ||
49b2f4c5 | 1449 | ret = fimc_md_register_platform_entities(fmd, dev->of_node); |
243d4c02 | 1450 | if (ret) |
fa91f105 | 1451 | goto err_clk; |
d3953223 | 1452 | |
49b2f4c5 | 1453 | ret = fimc_md_register_sensor_entities(fmd); |
243d4c02 | 1454 | if (ret) |
49b2f4c5 | 1455 | goto err_m_ent; |
d3953223 SN |
1456 | |
1457 | ret = device_create_file(&pdev->dev, &dev_attr_subdev_conf_mode); | |
693f5c40 | 1458 | if (ret) |
fa91f105 SN |
1459 | goto err_m_ent; |
1460 | /* | |
1461 | * FIMC platform devices need to be registered before the sclk_cam | |
1462 | * clocks provider, as one of these devices needs to be activated | |
1463 | * to enable the clock. | |
1464 | */ | |
1465 | ret = fimc_md_register_clk_provider(fmd); | |
1466 | if (ret < 0) { | |
1467 | v4l2_err(v4l2_dev, "clock provider registration failed\n"); | |
1468 | goto err_attr; | |
1469 | } | |
1470 | ||
1471 | if (fmd->num_sensors > 0) { | |
1472 | fmd->subdev_notifier.subdevs = fmd->async_subdevs; | |
1473 | fmd->subdev_notifier.num_subdevs = fmd->num_sensors; | |
1474 | fmd->subdev_notifier.bound = subdev_notifier_bound; | |
1475 | fmd->subdev_notifier.complete = subdev_notifier_complete; | |
1476 | fmd->num_sensors = 0; | |
1477 | ||
1478 | ret = v4l2_async_notifier_register(&fmd->v4l2_dev, | |
1479 | &fmd->subdev_notifier); | |
1480 | if (ret) | |
1481 | goto err_clk_p; | |
1482 | } | |
693f5c40 | 1483 | |
693f5c40 SN |
1484 | return 0; |
1485 | ||
fa91f105 SN |
1486 | err_clk_p: |
1487 | fimc_md_unregister_clk_provider(fmd); | |
1488 | err_attr: | |
1489 | device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode); | |
693f5c40 | 1490 | err_clk: |
d3953223 | 1491 | fimc_md_put_clocks(fmd); |
fa91f105 | 1492 | err_m_ent: |
d3953223 | 1493 | fimc_md_unregister_entities(fmd); |
693f5c40 | 1494 | err_md: |
9832e155 | 1495 | media_device_cleanup(&fmd->media_dev); |
d3953223 | 1496 | v4l2_device_unregister(&fmd->v4l2_dev); |
d3953223 SN |
1497 | return ret; |
1498 | } | |
1499 | ||
4c62e976 | 1500 | static int fimc_md_remove(struct platform_device *pdev) |
d3953223 SN |
1501 | { |
1502 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1503 | ||
1504 | if (!fmd) | |
1505 | return 0; | |
b74bee15 | 1506 | |
d3f5e0c5 | 1507 | fimc_md_unregister_clk_provider(fmd); |
fa91f105 SN |
1508 | v4l2_async_notifier_unregister(&fmd->subdev_notifier); |
1509 | ||
b74bee15 | 1510 | v4l2_device_unregister(&fmd->v4l2_dev); |
d3953223 SN |
1511 | device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode); |
1512 | fimc_md_unregister_entities(fmd); | |
403dfbec | 1513 | fimc_md_pipelines_free(fmd); |
d3953223 | 1514 | media_device_unregister(&fmd->media_dev); |
9832e155 | 1515 | media_device_cleanup(&fmd->media_dev); |
d3953223 | 1516 | fimc_md_put_clocks(fmd); |
fa91f105 | 1517 | |
d3953223 SN |
1518 | return 0; |
1519 | } | |
1520 | ||
c42639d8 | 1521 | static const struct platform_device_id fimc_driver_ids[] __always_unused = { |
e2985a26 SN |
1522 | { .name = "s5p-fimc-md" }, |
1523 | { }, | |
1524 | }; | |
1525 | MODULE_DEVICE_TABLE(platform, fimc_driver_ids); | |
1526 | ||
1527 | static const struct of_device_id fimc_md_of_match[] = { | |
1528 | { .compatible = "samsung,fimc" }, | |
1529 | { }, | |
1530 | }; | |
1531 | MODULE_DEVICE_TABLE(of, fimc_md_of_match); | |
1532 | ||
d3953223 SN |
1533 | static struct platform_driver fimc_md_driver = { |
1534 | .probe = fimc_md_probe, | |
4c62e976 | 1535 | .remove = fimc_md_remove, |
d3953223 | 1536 | .driver = { |
e2985a26 SN |
1537 | .of_match_table = of_match_ptr(fimc_md_of_match), |
1538 | .name = "s5p-fimc-md", | |
d3953223 SN |
1539 | } |
1540 | }; | |
1541 | ||
7e566be2 | 1542 | static int __init fimc_md_init(void) |
d3953223 SN |
1543 | { |
1544 | int ret; | |
ecd9acbf | 1545 | |
d3953223 SN |
1546 | request_module("s5p-csis"); |
1547 | ret = fimc_register_driver(); | |
1548 | if (ret) | |
1549 | return ret; | |
ecd9acbf | 1550 | |
d3953223 SN |
1551 | return platform_driver_register(&fimc_md_driver); |
1552 | } | |
7e566be2 SK |
1553 | |
1554 | static void __exit fimc_md_exit(void) | |
d3953223 SN |
1555 | { |
1556 | platform_driver_unregister(&fimc_md_driver); | |
1557 | fimc_unregister_driver(); | |
1558 | } | |
1559 | ||
1560 | module_init(fimc_md_init); | |
1561 | module_exit(fimc_md_exit); | |
1562 | ||
1563 | MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); | |
1564 | MODULE_DESCRIPTION("S5P FIMC camera host interface/video postprocessor driver"); | |
1565 | MODULE_LICENSE("GPL"); | |
1566 | MODULE_VERSION("2.0.1"); |