Commit | Line | Data |
---|---|---|
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 | ||
7e8da343 KK |
449 | if (WARN_ON(index >= ARRAY_SIZE(fmd->sensor))) { |
450 | of_node_put(rem); | |
fa91f105 | 451 | return -EINVAL; |
7e8da343 | 452 | } |
2b13f7d4 | 453 | |
fa91f105 SN |
454 | fmd->sensor[index].asd.match_type = V4L2_ASYNC_MATCH_OF; |
455 | fmd->sensor[index].asd.match.of.node = rem; | |
456 | fmd->async_subdevs[index] = &fmd->sensor[index].asd; | |
457 | ||
458 | fmd->num_sensors++; | |
459 | ||
460 | of_node_put(rem); | |
461 | return 0; | |
2b13f7d4 SN |
462 | } |
463 | ||
464 | /* Register all SoC external sub-devices */ | |
49b2f4c5 | 465 | static int fimc_md_register_sensor_entities(struct fimc_md *fmd) |
2b13f7d4 SN |
466 | { |
467 | struct device_node *parent = fmd->pdev->dev.of_node; | |
468 | struct device_node *node, *ports; | |
469 | int index = 0; | |
470 | int ret; | |
471 | ||
49b2f4c5 SN |
472 | /* |
473 | * Runtime resume one of the FIMC entities to make sure | |
474 | * the sclk_cam clocks are not globally disabled. | |
475 | */ | |
476 | if (!fmd->pmf) | |
477 | return -ENXIO; | |
478 | ||
479 | ret = pm_runtime_get_sync(fmd->pmf); | |
480 | if (ret < 0) | |
481 | return ret; | |
482 | ||
483 | fmd->num_sensors = 0; | |
484 | ||
2b13f7d4 SN |
485 | /* Attach sensors linked to MIPI CSI-2 receivers */ |
486 | for_each_available_child_of_node(parent, node) { | |
487 | struct device_node *port; | |
488 | ||
489 | if (of_node_cmp(node->name, "csis")) | |
490 | continue; | |
491 | /* The csis node can have only port subnode. */ | |
492 | port = of_get_next_child(node, NULL); | |
493 | if (!port) | |
494 | continue; | |
495 | ||
496 | ret = fimc_md_parse_port_node(fmd, port, index); | |
458a3952 AKC |
497 | if (ret < 0) { |
498 | of_node_put(node); | |
49b2f4c5 | 499 | goto rpm_put; |
458a3952 | 500 | } |
2b13f7d4 SN |
501 | index++; |
502 | } | |
503 | ||
504 | /* Attach sensors listed in the parallel-ports node */ | |
505 | ports = of_get_child_by_name(parent, "parallel-ports"); | |
506 | if (!ports) | |
49b2f4c5 | 507 | goto rpm_put; |
2b13f7d4 SN |
508 | |
509 | for_each_child_of_node(ports, node) { | |
510 | ret = fimc_md_parse_port_node(fmd, node, index); | |
458a3952 AKC |
511 | if (ret < 0) { |
512 | of_node_put(node); | |
2b13f7d4 | 513 | break; |
458a3952 | 514 | } |
2b13f7d4 SN |
515 | index++; |
516 | } | |
49b2f4c5 SN |
517 | rpm_put: |
518 | pm_runtime_put(fmd->pmf); | |
519 | return ret; | |
2b13f7d4 SN |
520 | } |
521 | ||
e2985a26 SN |
522 | static int __of_get_csis_id(struct device_node *np) |
523 | { | |
524 | u32 reg = 0; | |
525 | ||
526 | np = of_get_child_by_name(np, "port"); | |
527 | if (!np) | |
528 | return -EINVAL; | |
529 | of_property_read_u32(np, "reg", ®); | |
530 | return reg - FIMC_INPUT_MIPI_CSI2_0; | |
531 | } | |
d3953223 SN |
532 | |
533 | /* | |
7b43a6f3 | 534 | * MIPI-CSIS, FIMC and FIMC-LITE platform devices registration. |
d3953223 | 535 | */ |
7b43a6f3 SN |
536 | static int register_fimc_lite_entity(struct fimc_md *fmd, |
537 | struct fimc_lite *fimc_lite) | |
d3953223 | 538 | { |
8163ec0b | 539 | struct v4l2_subdev *sd; |
403dfbec | 540 | struct exynos_media_pipeline *ep; |
afd7348c | 541 | int ret; |
4af81310 | 542 | |
7b43a6f3 SN |
543 | if (WARN_ON(fimc_lite->index >= FIMC_LITE_MAX_DEVS || |
544 | fmd->fimc_lite[fimc_lite->index])) | |
545 | return -EBUSY; | |
d3953223 | 546 | |
7b43a6f3 SN |
547 | sd = &fimc_lite->subdev; |
548 | sd->grp_id = GRP_ID_FLITE; | |
403dfbec SN |
549 | |
550 | ep = fimc_md_pipeline_create(fmd); | |
551 | if (!ep) | |
552 | return -ENOMEM; | |
553 | ||
554 | v4l2_set_subdev_hostdata(sd, ep); | |
693f5c40 SN |
555 | |
556 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); | |
7b43a6f3 SN |
557 | if (!ret) |
558 | fmd->fimc_lite[fimc_lite->index] = fimc_lite; | |
559 | else | |
560 | v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.LITE%d\n", | |
561 | fimc_lite->index); | |
562 | return ret; | |
d3953223 SN |
563 | } |
564 | ||
7b43a6f3 | 565 | static int register_fimc_entity(struct fimc_md *fmd, struct fimc_dev *fimc) |
4af81310 | 566 | { |
7b43a6f3 | 567 | struct v4l2_subdev *sd; |
403dfbec | 568 | struct exynos_media_pipeline *ep; |
4af81310 SN |
569 | int ret; |
570 | ||
7b43a6f3 SN |
571 | if (WARN_ON(fimc->id >= FIMC_MAX_DEVS || fmd->fimc[fimc->id])) |
572 | return -EBUSY; | |
4af81310 | 573 | |
7b43a6f3 SN |
574 | sd = &fimc->vid_cap.subdev; |
575 | sd->grp_id = GRP_ID_FIMC; | |
403dfbec SN |
576 | |
577 | ep = fimc_md_pipeline_create(fmd); | |
578 | if (!ep) | |
579 | return -ENOMEM; | |
580 | ||
581 | v4l2_set_subdev_hostdata(sd, ep); | |
4af81310 | 582 | |
7b43a6f3 SN |
583 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); |
584 | if (!ret) { | |
3e20c345 SN |
585 | if (!fmd->pmf && fimc->pdev) |
586 | fmd->pmf = &fimc->pdev->dev; | |
7b43a6f3 SN |
587 | fmd->fimc[fimc->id] = fimc; |
588 | fimc->vid_cap.user_subdev_api = fmd->user_subdev_api; | |
589 | } else { | |
590 | v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.%d (%d)\n", | |
591 | fimc->id, ret); | |
4af81310 | 592 | } |
7b43a6f3 | 593 | return ret; |
4af81310 SN |
594 | } |
595 | ||
7b43a6f3 SN |
596 | static int register_csis_entity(struct fimc_md *fmd, |
597 | struct platform_device *pdev, | |
598 | struct v4l2_subdev *sd) | |
d3953223 | 599 | { |
7b43a6f3 | 600 | struct device_node *node = pdev->dev.of_node; |
d3953223 SN |
601 | int id, ret; |
602 | ||
e2985a26 | 603 | id = node ? __of_get_csis_id(node) : max(0, pdev->id); |
7b43a6f3 | 604 | |
e2985a26 SN |
605 | if (WARN_ON(id < 0 || id >= CSIS_MAX_ENTITIES)) |
606 | return -ENOENT; | |
7b43a6f3 | 607 | |
e2985a26 SN |
608 | if (WARN_ON(fmd->csis[id].sd)) |
609 | return -EBUSY; | |
d3953223 | 610 | |
588c87be | 611 | sd->grp_id = GRP_ID_CSIS; |
d3953223 | 612 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); |
afd7348c SN |
613 | if (!ret) |
614 | fmd->csis[id].sd = sd; | |
615 | else | |
d3953223 | 616 | v4l2_err(&fmd->v4l2_dev, |
7b43a6f3 | 617 | "Failed to register MIPI-CSIS.%d (%d)\n", id, ret); |
d3953223 SN |
618 | return ret; |
619 | } | |
620 | ||
e781bbe3 SN |
621 | static int register_fimc_is_entity(struct fimc_md *fmd, struct fimc_is *is) |
622 | { | |
623 | struct v4l2_subdev *sd = &is->isp.subdev; | |
34947b8a | 624 | struct exynos_media_pipeline *ep; |
e781bbe3 SN |
625 | int ret; |
626 | ||
34947b8a SN |
627 | /* Allocate pipeline object for the ISP capture video node. */ |
628 | ep = fimc_md_pipeline_create(fmd); | |
629 | if (!ep) | |
630 | return -ENOMEM; | |
631 | ||
632 | v4l2_set_subdev_hostdata(sd, ep); | |
633 | ||
e781bbe3 SN |
634 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); |
635 | if (ret) { | |
636 | v4l2_err(&fmd->v4l2_dev, | |
637 | "Failed to register FIMC-ISP (%d)\n", ret); | |
638 | return ret; | |
639 | } | |
640 | ||
641 | fmd->fimc_is = is; | |
642 | return 0; | |
643 | } | |
644 | ||
7b43a6f3 SN |
645 | static int fimc_md_register_platform_entity(struct fimc_md *fmd, |
646 | struct platform_device *pdev, | |
647 | int plat_entity) | |
d3953223 | 648 | { |
7b43a6f3 SN |
649 | struct device *dev = &pdev->dev; |
650 | int ret = -EPROBE_DEFER; | |
651 | void *drvdata; | |
652 | ||
653 | /* Lock to ensure dev->driver won't change. */ | |
654 | device_lock(dev); | |
655 | ||
656 | if (!dev->driver || !try_module_get(dev->driver->owner)) | |
657 | goto dev_unlock; | |
658 | ||
659 | drvdata = dev_get_drvdata(dev); | |
f58c91ce | 660 | /* Some subdev didn't probe successfully id drvdata is NULL */ |
7b43a6f3 SN |
661 | if (drvdata) { |
662 | switch (plat_entity) { | |
663 | case IDX_FIMC: | |
664 | ret = register_fimc_entity(fmd, drvdata); | |
665 | break; | |
666 | case IDX_FLITE: | |
667 | ret = register_fimc_lite_entity(fmd, drvdata); | |
ecd9acbf | 668 | break; |
7b43a6f3 SN |
669 | case IDX_CSIS: |
670 | ret = register_csis_entity(fmd, pdev, drvdata); | |
671 | break; | |
e781bbe3 SN |
672 | case IDX_IS_ISP: |
673 | ret = register_fimc_is_entity(fmd, drvdata); | |
674 | break; | |
7b43a6f3 SN |
675 | default: |
676 | ret = -ENODEV; | |
ecd9acbf SN |
677 | } |
678 | } | |
d3953223 | 679 | |
7b43a6f3 SN |
680 | module_put(dev->driver->owner); |
681 | dev_unlock: | |
682 | device_unlock(dev); | |
683 | if (ret == -EPROBE_DEFER) | |
684 | dev_info(&fmd->pdev->dev, "deferring %s device registration\n", | |
685 | dev_name(dev)); | |
686 | else if (ret < 0) | |
687 | dev_err(&fmd->pdev->dev, "%s device registration failed (%d)\n", | |
688 | dev_name(dev), ret); | |
689 | return ret; | |
690 | } | |
691 | ||
e2985a26 | 692 | /* Register FIMC, FIMC-LITE and CSIS media entities */ |
49b2f4c5 SN |
693 | static int fimc_md_register_platform_entities(struct fimc_md *fmd, |
694 | struct device_node *parent) | |
e2985a26 SN |
695 | { |
696 | struct device_node *node; | |
697 | int ret = 0; | |
698 | ||
699 | for_each_available_child_of_node(parent, node) { | |
700 | struct platform_device *pdev; | |
701 | int plat_entity = -1; | |
702 | ||
703 | pdev = of_find_device_by_node(node); | |
704 | if (!pdev) | |
705 | continue; | |
706 | ||
707 | /* If driver of any entity isn't ready try all again later. */ | |
708 | if (!strcmp(node->name, CSIS_OF_NODE_NAME)) | |
709 | plat_entity = IDX_CSIS; | |
e781bbe3 SN |
710 | else if (!strcmp(node->name, FIMC_IS_OF_NODE_NAME)) |
711 | plat_entity = IDX_IS_ISP; | |
e2985a26 SN |
712 | else if (!strcmp(node->name, FIMC_LITE_OF_NODE_NAME)) |
713 | plat_entity = IDX_FLITE; | |
714 | else if (!strcmp(node->name, FIMC_OF_NODE_NAME) && | |
715 | !of_property_read_bool(node, "samsung,lcd-wb")) | |
716 | plat_entity = IDX_FIMC; | |
717 | ||
718 | if (plat_entity >= 0) | |
719 | ret = fimc_md_register_platform_entity(fmd, pdev, | |
720 | plat_entity); | |
721 | put_device(&pdev->dev); | |
458a3952 AKC |
722 | if (ret < 0) { |
723 | of_node_put(node); | |
e2985a26 | 724 | break; |
458a3952 | 725 | } |
e2985a26 SN |
726 | } |
727 | ||
728 | return ret; | |
729 | } | |
e2985a26 | 730 | |
d3953223 SN |
731 | static void fimc_md_unregister_entities(struct fimc_md *fmd) |
732 | { | |
733 | int i; | |
734 | ||
735 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
403dfbec SN |
736 | struct fimc_dev *dev = fmd->fimc[i]; |
737 | if (dev == NULL) | |
d3953223 | 738 | continue; |
403dfbec SN |
739 | v4l2_device_unregister_subdev(&dev->vid_cap.subdev); |
740 | dev->vid_cap.ve.pipe = NULL; | |
d3953223 SN |
741 | fmd->fimc[i] = NULL; |
742 | } | |
4af81310 | 743 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { |
403dfbec SN |
744 | struct fimc_lite *dev = fmd->fimc_lite[i]; |
745 | if (dev == NULL) | |
4af81310 | 746 | continue; |
403dfbec SN |
747 | v4l2_device_unregister_subdev(&dev->subdev); |
748 | dev->ve.pipe = NULL; | |
4af81310 SN |
749 | fmd->fimc_lite[i] = NULL; |
750 | } | |
d3953223 SN |
751 | for (i = 0; i < CSIS_MAX_ENTITIES; i++) { |
752 | if (fmd->csis[i].sd == NULL) | |
753 | continue; | |
754 | v4l2_device_unregister_subdev(fmd->csis[i].sd); | |
755 | fmd->csis[i].sd = NULL; | |
756 | } | |
e41a35cb SN |
757 | |
758 | if (fmd->fimc_is) | |
759 | v4l2_device_unregister_subdev(&fmd->fimc_is->isp.subdev); | |
760 | ||
7b43a6f3 | 761 | v4l2_info(&fmd->v4l2_dev, "Unregistered all entities\n"); |
d3953223 SN |
762 | } |
763 | ||
d3953223 SN |
764 | /** |
765 | * __fimc_md_create_fimc_links - create links to all FIMC entities | |
766 | * @fmd: fimc media device | |
767 | * @source: the source entity to create links to all fimc entities from | |
768 | * @sensor: sensor subdev linked to FIMC[fimc_id] entity, may be null | |
769 | * @pad: the source entity pad index | |
d0da3c35 | 770 | * @link_mask: bitmask of the fimc devices for which link should be enabled |
d3953223 | 771 | */ |
4af81310 SN |
772 | static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, |
773 | struct media_entity *source, | |
774 | struct v4l2_subdev *sensor, | |
d0da3c35 | 775 | int pad, int link_mask) |
d3953223 | 776 | { |
4c8f0629 | 777 | struct fimc_source_info *si = NULL; |
d3953223 | 778 | struct media_entity *sink; |
4af81310 | 779 | unsigned int flags = 0; |
f998bb7b | 780 | int i, ret = 0; |
d3953223 | 781 | |
f998bb7b SN |
782 | if (sensor) { |
783 | si = v4l2_get_subdev_hostdata(sensor); | |
784 | /* Skip direct FIMC links in the logical FIMC-IS sensor path */ | |
4c8f0629 | 785 | if (si && si->fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) |
f998bb7b SN |
786 | ret = 1; |
787 | } | |
788 | ||
789 | for (i = 0; !ret && i < FIMC_MAX_DEVS; i++) { | |
d3953223 | 790 | if (!fmd->fimc[i]) |
4af81310 | 791 | continue; |
d3953223 SN |
792 | /* |
793 | * Some FIMC variants are not fitted with camera capture | |
794 | * interface. Skip creating a link from sensor for those. | |
795 | */ | |
4af81310 | 796 | if (!fmd->fimc[i]->variant->has_cam_if) |
d3953223 SN |
797 | continue; |
798 | ||
d0da3c35 | 799 | flags = ((1 << i) & link_mask) ? MEDIA_LNK_FL_ENABLED : 0; |
4af81310 | 800 | |
693f5c40 | 801 | sink = &fmd->fimc[i]->vid_cap.subdev.entity; |
8df00a15 | 802 | ret = media_create_pad_link(source, pad, sink, |
88fa8311 | 803 | FIMC_SD_PAD_SINK_CAM, flags); |
d3953223 SN |
804 | if (ret) |
805 | return ret; | |
806 | ||
237e0265 SN |
807 | /* Notify FIMC capture subdev entity */ |
808 | ret = media_entity_call(sink, link_setup, &sink->pads[0], | |
809 | &source->pads[pad], flags); | |
810 | if (ret) | |
811 | break; | |
812 | ||
542fb082 | 813 | v4l2_info(&fmd->v4l2_dev, "created link [%s] %c> [%s]\n", |
d3953223 | 814 | source->name, flags ? '=' : '-', sink->name); |
d3953223 | 815 | } |
4af81310 SN |
816 | |
817 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { | |
818 | if (!fmd->fimc_lite[i]) | |
819 | continue; | |
820 | ||
4af81310 | 821 | sink = &fmd->fimc_lite[i]->subdev.entity; |
8df00a15 | 822 | ret = media_create_pad_link(source, pad, sink, |
f998bb7b | 823 | FLITE_SD_PAD_SINK, 0); |
4af81310 SN |
824 | if (ret) |
825 | return ret; | |
826 | ||
827 | /* Notify FIMC-LITE subdev entity */ | |
828 | ret = media_entity_call(sink, link_setup, &sink->pads[0], | |
f998bb7b | 829 | &source->pads[pad], 0); |
4af81310 SN |
830 | if (ret) |
831 | break; | |
832 | ||
f998bb7b SN |
833 | v4l2_info(&fmd->v4l2_dev, "created link [%s] -> [%s]\n", |
834 | source->name, sink->name); | |
4af81310 | 835 | } |
d3953223 SN |
836 | return 0; |
837 | } | |
838 | ||
4af81310 SN |
839 | /* Create links from FIMC-LITE source pads to other entities */ |
840 | static int __fimc_md_create_flite_source_links(struct fimc_md *fmd) | |
841 | { | |
842 | struct media_entity *source, *sink; | |
a26860bd | 843 | int i, ret = 0; |
4af81310 SN |
844 | |
845 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { | |
846 | struct fimc_lite *fimc = fmd->fimc_lite[i]; | |
f998bb7b | 847 | |
4af81310 SN |
848 | if (fimc == NULL) |
849 | continue; | |
f998bb7b | 850 | |
4af81310 | 851 | source = &fimc->subdev.entity; |
bc7584b0 | 852 | sink = &fimc->ve.vdev.entity; |
4af81310 | 853 | /* FIMC-LITE's subdev and video node */ |
8df00a15 | 854 | ret = media_create_pad_link(source, FLITE_SD_PAD_SOURCE_DMA, |
f998bb7b SN |
855 | sink, 0, 0); |
856 | if (ret) | |
857 | break; | |
858 | /* Link from FIMC-LITE to IS-ISP subdev */ | |
859 | sink = &fmd->fimc_is->isp.subdev.entity; | |
8df00a15 | 860 | ret = media_create_pad_link(source, FLITE_SD_PAD_SOURCE_ISP, |
f998bb7b | 861 | sink, 0, 0); |
4af81310 SN |
862 | if (ret) |
863 | break; | |
f998bb7b SN |
864 | } |
865 | ||
866 | return ret; | |
867 | } | |
868 | ||
869 | /* Create FIMC-IS links */ | |
870 | static int __fimc_md_create_fimc_is_links(struct fimc_md *fmd) | |
871 | { | |
34947b8a | 872 | struct fimc_isp *isp = &fmd->fimc_is->isp; |
f998bb7b SN |
873 | struct media_entity *source, *sink; |
874 | int i, ret; | |
875 | ||
34947b8a | 876 | source = &isp->subdev.entity; |
f998bb7b SN |
877 | |
878 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
879 | if (fmd->fimc[i] == NULL) | |
880 | continue; | |
881 | ||
34947b8a | 882 | /* Link from FIMC-IS-ISP subdev to FIMC */ |
f998bb7b | 883 | sink = &fmd->fimc[i]->vid_cap.subdev.entity; |
8df00a15 | 884 | ret = media_create_pad_link(source, FIMC_ISP_SD_PAD_SRC_FIFO, |
f998bb7b SN |
885 | sink, FIMC_SD_PAD_SINK_FIFO, 0); |
886 | if (ret) | |
887 | return ret; | |
4af81310 SN |
888 | } |
889 | ||
34947b8a SN |
890 | /* Link from FIMC-IS-ISP subdev to fimc-is-isp.capture video node */ |
891 | sink = &isp->video_capture.ve.vdev.entity; | |
892 | ||
893 | /* Skip this link if the fimc-is-isp video node driver isn't built-in */ | |
894 | if (sink->num_pads == 0) | |
895 | return 0; | |
896 | ||
8df00a15 | 897 | return media_create_pad_link(source, FIMC_ISP_SD_PAD_SRC_DMA, |
34947b8a | 898 | sink, 0, 0); |
4af81310 SN |
899 | } |
900 | ||
d3953223 SN |
901 | /** |
902 | * fimc_md_create_links - create default links between registered entities | |
903 | * | |
904 | * Parallel interface sensor entities are connected directly to FIMC capture | |
905 | * entities. The sensors using MIPI CSIS bus are connected through immutable | |
906 | * link with CSI receiver entity specified by mux_id. Any registered CSIS | |
907 | * entity has a link to each registered FIMC capture entity. Enabled links | |
908 | * are created by default between each subsequent registered sensor and | |
909 | * subsequent FIMC capture entity. The number of default active links is | |
910 | * determined by the number of available sensors or FIMC entities, | |
911 | * whichever is less. | |
912 | */ | |
913 | static int fimc_md_create_links(struct fimc_md *fmd) | |
914 | { | |
a8697ec8 | 915 | struct v4l2_subdev *csi_sensors[CSIS_MAX_ENTITIES] = { NULL }; |
d3953223 | 916 | struct v4l2_subdev *sensor, *csis; |
56bc911a | 917 | struct fimc_source_info *pdata; |
237e0265 | 918 | struct media_entity *source, *sink; |
d0da3c35 SN |
919 | int i, pad, fimc_id = 0, ret = 0; |
920 | u32 flags, link_mask = 0; | |
d3953223 SN |
921 | |
922 | for (i = 0; i < fmd->num_sensors; i++) { | |
923 | if (fmd->sensor[i].subdev == NULL) | |
924 | continue; | |
925 | ||
926 | sensor = fmd->sensor[i].subdev; | |
4c8f0629 SN |
927 | pdata = v4l2_get_subdev_hostdata(sensor); |
928 | if (!pdata) | |
d3953223 SN |
929 | continue; |
930 | ||
931 | source = NULL; | |
d3953223 | 932 | |
56bc911a SN |
933 | switch (pdata->sensor_bus_type) { |
934 | case FIMC_BUS_TYPE_MIPI_CSI2: | |
d3953223 SN |
935 | if (WARN(pdata->mux_id >= CSIS_MAX_ENTITIES, |
936 | "Wrong CSI channel id: %d\n", pdata->mux_id)) | |
937 | return -EINVAL; | |
938 | ||
939 | csis = fmd->csis[pdata->mux_id].sd; | |
940 | if (WARN(csis == NULL, | |
941 | "MIPI-CSI interface specified " | |
942 | "but s5p-csis module is not loaded!\n")) | |
d12392ec | 943 | return -EINVAL; |
d3953223 | 944 | |
1c9f5bd7 | 945 | pad = sensor->entity.num_pads - 1; |
8df00a15 | 946 | ret = media_create_pad_link(&sensor->entity, pad, |
d3953223 SN |
947 | &csis->entity, CSIS_PAD_SINK, |
948 | MEDIA_LNK_FL_IMMUTABLE | | |
949 | MEDIA_LNK_FL_ENABLED); | |
950 | if (ret) | |
951 | return ret; | |
952 | ||
969e877c | 953 | v4l2_info(&fmd->v4l2_dev, "created link [%s] => [%s]\n", |
d3953223 SN |
954 | sensor->entity.name, csis->entity.name); |
955 | ||
4af81310 | 956 | source = NULL; |
5d33ee92 | 957 | csi_sensors[pdata->mux_id] = sensor; |
d3953223 SN |
958 | break; |
959 | ||
56bc911a | 960 | case FIMC_BUS_TYPE_ITU_601...FIMC_BUS_TYPE_ITU_656: |
d3953223 SN |
961 | source = &sensor->entity; |
962 | pad = 0; | |
963 | break; | |
964 | ||
965 | default: | |
966 | v4l2_err(&fmd->v4l2_dev, "Wrong bus_type: %x\n", | |
56bc911a | 967 | pdata->sensor_bus_type); |
d3953223 SN |
968 | return -EINVAL; |
969 | } | |
970 | if (source == NULL) | |
971 | continue; | |
972 | ||
d0da3c35 | 973 | link_mask = 1 << fimc_id++; |
4af81310 | 974 | ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor, |
d0da3c35 | 975 | pad, link_mask); |
4af81310 SN |
976 | } |
977 | ||
a8697ec8 | 978 | for (i = 0; i < CSIS_MAX_ENTITIES; i++) { |
4af81310 SN |
979 | if (fmd->csis[i].sd == NULL) |
980 | continue; | |
f998bb7b | 981 | |
4af81310 SN |
982 | source = &fmd->csis[i].sd->entity; |
983 | pad = CSIS_PAD_SOURCE; | |
5d33ee92 | 984 | sensor = csi_sensors[i]; |
4af81310 | 985 | |
d0da3c35 | 986 | link_mask = 1 << fimc_id++; |
5d33ee92 | 987 | ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor, |
d0da3c35 | 988 | pad, link_mask); |
d3953223 | 989 | } |
4af81310 | 990 | |
237e0265 SN |
991 | /* Create immutable links between each FIMC's subdev and video node */ |
992 | flags = MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED; | |
993 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
994 | if (!fmd->fimc[i]) | |
995 | continue; | |
f998bb7b | 996 | |
693f5c40 | 997 | source = &fmd->fimc[i]->vid_cap.subdev.entity; |
bc7584b0 | 998 | sink = &fmd->fimc[i]->vid_cap.ve.vdev.entity; |
f998bb7b | 999 | |
8df00a15 | 1000 | ret = media_create_pad_link(source, FIMC_SD_PAD_SOURCE, |
237e0265 SN |
1001 | sink, 0, flags); |
1002 | if (ret) | |
1003 | break; | |
1004 | } | |
1005 | ||
f998bb7b SN |
1006 | ret = __fimc_md_create_flite_source_links(fmd); |
1007 | if (ret < 0) | |
1008 | return ret; | |
1009 | ||
1010 | if (fmd->use_isp) | |
1011 | ret = __fimc_md_create_fimc_is_links(fmd); | |
1012 | ||
1013 | return ret; | |
d3953223 SN |
1014 | } |
1015 | ||
1016 | /* | |
056f4f30 | 1017 | * The peripheral sensor and CAM_BLK (PIXELASYNCMx) clocks management. |
d3953223 | 1018 | */ |
0e23cbbe SN |
1019 | static void fimc_md_put_clocks(struct fimc_md *fmd) |
1020 | { | |
1021 | int i = FIMC_MAX_CAMCLKS; | |
1022 | ||
1023 | while (--i >= 0) { | |
1024 | if (IS_ERR(fmd->camclk[i].clock)) | |
1025 | continue; | |
0e23cbbe SN |
1026 | clk_put(fmd->camclk[i].clock); |
1027 | fmd->camclk[i].clock = ERR_PTR(-EINVAL); | |
1028 | } | |
056f4f30 SN |
1029 | |
1030 | /* Writeback (PIXELASYNCMx) clocks */ | |
1031 | for (i = 0; i < FIMC_MAX_WBCLKS; i++) { | |
1032 | if (IS_ERR(fmd->wbclk[i])) | |
1033 | continue; | |
1034 | clk_put(fmd->wbclk[i]); | |
1035 | fmd->wbclk[i] = ERR_PTR(-EINVAL); | |
1036 | } | |
0e23cbbe SN |
1037 | } |
1038 | ||
d3953223 SN |
1039 | static int fimc_md_get_clocks(struct fimc_md *fmd) |
1040 | { | |
49b2f4c5 | 1041 | struct device *dev = &fmd->pdev->dev; |
d3953223 SN |
1042 | char clk_name[32]; |
1043 | struct clk *clock; | |
044c372a | 1044 | int i, ret = 0; |
0e23cbbe SN |
1045 | |
1046 | for (i = 0; i < FIMC_MAX_CAMCLKS; i++) | |
1047 | fmd->camclk[i].clock = ERR_PTR(-EINVAL); | |
1048 | ||
d3953223 SN |
1049 | for (i = 0; i < FIMC_MAX_CAMCLKS; i++) { |
1050 | snprintf(clk_name, sizeof(clk_name), "sclk_cam%u", i); | |
0e23cbbe SN |
1051 | clock = clk_get(dev, clk_name); |
1052 | ||
dc3ae328 | 1053 | if (IS_ERR(clock)) { |
49b2f4c5 | 1054 | dev_err(dev, "Failed to get clock: %s\n", clk_name); |
0e23cbbe SN |
1055 | ret = PTR_ERR(clock); |
1056 | break; | |
1057 | } | |
d3953223 SN |
1058 | fmd->camclk[i].clock = clock; |
1059 | } | |
0e23cbbe SN |
1060 | if (ret) |
1061 | fimc_md_put_clocks(fmd); | |
d3953223 | 1062 | |
056f4f30 SN |
1063 | if (!fmd->use_isp) |
1064 | return 0; | |
1065 | /* | |
1066 | * For now get only PIXELASYNCM1 clock (Writeback B/ISP), | |
1067 | * leave PIXELASYNCM0 out for the LCD Writeback driver. | |
1068 | */ | |
1069 | fmd->wbclk[CLK_IDX_WB_A] = ERR_PTR(-EINVAL); | |
1070 | ||
1071 | for (i = CLK_IDX_WB_B; i < FIMC_MAX_WBCLKS; i++) { | |
1072 | snprintf(clk_name, sizeof(clk_name), "pxl_async%u", i); | |
1073 | clock = clk_get(dev, clk_name); | |
1074 | if (IS_ERR(clock)) { | |
1075 | v4l2_err(&fmd->v4l2_dev, "Failed to get clock: %s\n", | |
1076 | clk_name); | |
1077 | ret = PTR_ERR(clock); | |
1078 | break; | |
1079 | } | |
1080 | fmd->wbclk[i] = clock; | |
1081 | } | |
1082 | if (ret) | |
1083 | fimc_md_put_clocks(fmd); | |
1084 | ||
0e23cbbe | 1085 | return ret; |
d3953223 SN |
1086 | } |
1087 | ||
d3775fa7 | 1088 | static int __fimc_md_modify_pipeline(struct media_entity *entity, bool enable) |
d3953223 | 1089 | { |
403dfbec | 1090 | struct exynos_video_entity *ve; |
d3775fa7 | 1091 | struct fimc_pipeline *p; |
403dfbec | 1092 | struct video_device *vdev; |
d3775fa7 | 1093 | int ret; |
d3953223 | 1094 | |
d3775fa7 SN |
1095 | vdev = media_entity_to_video_device(entity); |
1096 | if (vdev->entity.use_count == 0) | |
d3953223 SN |
1097 | return 0; |
1098 | ||
403dfbec | 1099 | ve = vdev_to_exynos_video_entity(vdev); |
d3775fa7 SN |
1100 | p = to_fimc_pipeline(ve->pipe); |
1101 | /* | |
1102 | * Nothing to do if we are disabling the pipeline, some link | |
1103 | * has been disconnected and p->subdevs array is cleared now. | |
1104 | */ | |
1105 | if (!enable && p->subdevs[IDX_SENSOR] == NULL) | |
1106 | return 0; | |
403dfbec | 1107 | |
d3775fa7 SN |
1108 | if (enable) |
1109 | ret = __fimc_pipeline_open(ve->pipe, entity, true); | |
1110 | else | |
1111 | ret = __fimc_pipeline_close(ve->pipe); | |
131b6c61 | 1112 | |
d3775fa7 SN |
1113 | if (ret == 0 && !enable) |
1114 | memset(p->subdevs, 0, sizeof(p->subdevs)); | |
1115 | ||
1116 | return ret; | |
1117 | } | |
1118 | ||
d10c9894 | 1119 | /* Locking: called with entity->graph_obj.mdev->graph_mutex mutex held. */ |
fd7e5309 SA |
1120 | static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable, |
1121 | struct media_entity_graph *graph) | |
d3775fa7 SN |
1122 | { |
1123 | struct media_entity *entity_err = entity; | |
d3775fa7 SN |
1124 | int ret; |
1125 | ||
1126 | /* | |
1127 | * Walk current graph and call the pipeline open/close routine for each | |
1128 | * opened video node that belongs to the graph of entities connected | |
1129 | * through active links. This is needed as we cannot power on/off the | |
1130 | * subdevs in random order. | |
1131 | */ | |
fd7e5309 | 1132 | media_entity_graph_walk_start(graph, entity); |
d3775fa7 | 1133 | |
fd7e5309 | 1134 | while ((entity = media_entity_graph_walk_next(graph))) { |
45b46879 | 1135 | if (!is_media_entity_v4l2_video_device(entity)) |
d3775fa7 SN |
1136 | continue; |
1137 | ||
1138 | ret = __fimc_md_modify_pipeline(entity, enable); | |
1139 | ||
1140 | if (ret < 0) | |
1141 | goto err; | |
1142 | } | |
1143 | ||
1144 | return 0; | |
d3775fa7 | 1145 | |
fd7e5309 SA |
1146 | err: |
1147 | media_entity_graph_walk_start(graph, entity_err); | |
1148 | ||
1149 | while ((entity_err = media_entity_graph_walk_next(graph))) { | |
45b46879 | 1150 | if (!is_media_entity_v4l2_video_device(entity_err)) |
d3775fa7 SN |
1151 | continue; |
1152 | ||
1153 | __fimc_md_modify_pipeline(entity_err, !enable); | |
1154 | ||
1155 | if (entity_err == entity) | |
1156 | break; | |
1157 | } | |
1158 | ||
1159 | return ret; | |
1160 | } | |
1161 | ||
1162 | static int fimc_md_link_notify(struct media_link *link, unsigned int flags, | |
1163 | unsigned int notification) | |
1164 | { | |
fd7e5309 SA |
1165 | struct media_entity_graph *graph = |
1166 | &container_of(link->graph_obj.mdev, struct fimc_md, | |
1167 | media_dev)->link_setup_graph; | |
d3775fa7 SN |
1168 | struct media_entity *sink = link->sink->entity; |
1169 | int ret = 0; | |
1170 | ||
1171 | /* Before link disconnection */ | |
1172 | if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH) { | |
fd7e5309 SA |
1173 | ret = media_entity_graph_walk_init(graph, |
1174 | link->graph_obj.mdev); | |
1175 | if (ret) | |
1176 | return ret; | |
d3775fa7 | 1177 | if (!(flags & MEDIA_LNK_FL_ENABLED)) |
fd7e5309 | 1178 | ret = __fimc_md_modify_pipelines(sink, false, graph); |
cdf58a6f | 1179 | #if 0 |
d3775fa7 | 1180 | else |
cdf58a6f MCC |
1181 | /* TODO: Link state change validation */ |
1182 | #endif | |
d3775fa7 | 1183 | /* After link activation */ |
fd7e5309 SA |
1184 | } else if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH) { |
1185 | if (link->flags & MEDIA_LNK_FL_ENABLED) | |
1186 | ret = __fimc_md_modify_pipelines(sink, true, graph); | |
1187 | media_entity_graph_walk_cleanup(graph); | |
d3953223 | 1188 | } |
740ad921 | 1189 | |
d3775fa7 | 1190 | return ret ? -EPIPE : 0; |
d3953223 SN |
1191 | } |
1192 | ||
1193 | static ssize_t fimc_md_sysfs_show(struct device *dev, | |
1194 | struct device_attribute *attr, char *buf) | |
1195 | { | |
1196 | struct platform_device *pdev = to_platform_device(dev); | |
1197 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1198 | ||
1199 | if (fmd->user_subdev_api) | |
1200 | return strlcpy(buf, "Sub-device API (sub-dev)\n", PAGE_SIZE); | |
1201 | ||
1202 | return strlcpy(buf, "V4L2 video node only API (vid-dev)\n", PAGE_SIZE); | |
1203 | } | |
1204 | ||
1205 | static ssize_t fimc_md_sysfs_store(struct device *dev, | |
1206 | struct device_attribute *attr, | |
1207 | const char *buf, size_t count) | |
1208 | { | |
1209 | struct platform_device *pdev = to_platform_device(dev); | |
1210 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1211 | bool subdev_api; | |
1212 | int i; | |
1213 | ||
1214 | if (!strcmp(buf, "vid-dev\n")) | |
1215 | subdev_api = false; | |
1216 | else if (!strcmp(buf, "sub-dev\n")) | |
1217 | subdev_api = true; | |
1218 | else | |
1219 | return count; | |
1220 | ||
1221 | fmd->user_subdev_api = subdev_api; | |
1222 | for (i = 0; i < FIMC_MAX_DEVS; i++) | |
1223 | if (fmd->fimc[i]) | |
1224 | fmd->fimc[i]->vid_cap.user_subdev_api = subdev_api; | |
1225 | return count; | |
1226 | } | |
1227 | /* | |
1228 | * This device attribute is to select video pipeline configuration method. | |
1229 | * There are following valid values: | |
1230 | * vid-dev - for V4L2 video node API only, subdevice will be configured | |
1231 | * by the host driver. | |
1232 | * sub-dev - for media controller API, subdevs must be configured in user | |
1233 | * space before starting streaming. | |
1234 | */ | |
1235 | static DEVICE_ATTR(subdev_conf_mode, S_IWUSR | S_IRUGO, | |
1236 | fimc_md_sysfs_show, fimc_md_sysfs_store); | |
1237 | ||
4163851f SN |
1238 | static int fimc_md_get_pinctrl(struct fimc_md *fmd) |
1239 | { | |
1240 | struct device *dev = &fmd->pdev->dev; | |
1241 | struct fimc_pinctrl *pctl = &fmd->pinctl; | |
1242 | ||
1243 | pctl->pinctrl = devm_pinctrl_get(dev); | |
1244 | if (IS_ERR(pctl->pinctrl)) | |
1245 | return PTR_ERR(pctl->pinctrl); | |
1246 | ||
1247 | pctl->state_default = pinctrl_lookup_state(pctl->pinctrl, | |
1248 | PINCTRL_STATE_DEFAULT); | |
1249 | if (IS_ERR(pctl->state_default)) | |
1250 | return PTR_ERR(pctl->state_default); | |
1251 | ||
1252 | pctl->state_idle = pinctrl_lookup_state(pctl->pinctrl, | |
1253 | PINCTRL_STATE_IDLE); | |
1254 | return 0; | |
1255 | } | |
1256 | ||
d3f5e0c5 SN |
1257 | static int cam_clk_prepare(struct clk_hw *hw) |
1258 | { | |
1259 | struct cam_clk *camclk = to_cam_clk(hw); | |
1260 | int ret; | |
1261 | ||
1262 | if (camclk->fmd->pmf == NULL) | |
1263 | return -ENODEV; | |
1264 | ||
1265 | ret = pm_runtime_get_sync(camclk->fmd->pmf); | |
1266 | return ret < 0 ? ret : 0; | |
1267 | } | |
1268 | ||
1269 | static void cam_clk_unprepare(struct clk_hw *hw) | |
1270 | { | |
1271 | struct cam_clk *camclk = to_cam_clk(hw); | |
1272 | ||
1273 | if (camclk->fmd->pmf == NULL) | |
1274 | return; | |
1275 | ||
1276 | pm_runtime_put_sync(camclk->fmd->pmf); | |
1277 | } | |
1278 | ||
1279 | static const struct clk_ops cam_clk_ops = { | |
1280 | .prepare = cam_clk_prepare, | |
1281 | .unprepare = cam_clk_unprepare, | |
1282 | }; | |
1283 | ||
1284 | static void fimc_md_unregister_clk_provider(struct fimc_md *fmd) | |
1285 | { | |
1286 | struct cam_clk_provider *cp = &fmd->clk_provider; | |
1287 | unsigned int i; | |
1288 | ||
1289 | if (cp->of_node) | |
1290 | of_clk_del_provider(cp->of_node); | |
1291 | ||
1292 | for (i = 0; i < cp->num_clocks; i++) | |
1293 | clk_unregister(cp->clks[i]); | |
1294 | } | |
1295 | ||
1296 | static int fimc_md_register_clk_provider(struct fimc_md *fmd) | |
1297 | { | |
1298 | struct cam_clk_provider *cp = &fmd->clk_provider; | |
1299 | struct device *dev = &fmd->pdev->dev; | |
1300 | int i, ret; | |
1301 | ||
1302 | for (i = 0; i < FIMC_MAX_CAMCLKS; i++) { | |
1303 | struct cam_clk *camclk = &cp->camclk[i]; | |
1304 | struct clk_init_data init; | |
1305 | const char *p_name; | |
1306 | ||
1307 | ret = of_property_read_string_index(dev->of_node, | |
1308 | "clock-output-names", i, &init.name); | |
1309 | if (ret < 0) | |
1310 | break; | |
1311 | ||
1312 | p_name = __clk_get_name(fmd->camclk[i].clock); | |
1313 | ||
1314 | /* It's safe since clk_register() will duplicate the string. */ | |
1315 | init.parent_names = &p_name; | |
1316 | init.num_parents = 1; | |
1317 | init.ops = &cam_clk_ops; | |
1318 | init.flags = CLK_SET_RATE_PARENT; | |
1319 | camclk->hw.init = &init; | |
1320 | camclk->fmd = fmd; | |
1321 | ||
1322 | cp->clks[i] = clk_register(NULL, &camclk->hw); | |
1323 | if (IS_ERR(cp->clks[i])) { | |
1324 | dev_err(dev, "failed to register clock: %s (%ld)\n", | |
1325 | init.name, PTR_ERR(cp->clks[i])); | |
1326 | ret = PTR_ERR(cp->clks[i]); | |
1327 | goto err; | |
1328 | } | |
1329 | cp->num_clocks++; | |
1330 | } | |
1331 | ||
1332 | if (cp->num_clocks == 0) { | |
1333 | dev_warn(dev, "clk provider not registered\n"); | |
1334 | return 0; | |
1335 | } | |
1336 | ||
1337 | cp->clk_data.clks = cp->clks; | |
1338 | cp->clk_data.clk_num = cp->num_clocks; | |
1339 | cp->of_node = dev->of_node; | |
1340 | ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get, | |
1341 | &cp->clk_data); | |
1342 | if (ret == 0) | |
1343 | return 0; | |
1344 | err: | |
1345 | fimc_md_unregister_clk_provider(fmd); | |
1346 | return ret; | |
1347 | } | |
d3f5e0c5 | 1348 | |
fa91f105 SN |
1349 | static int subdev_notifier_bound(struct v4l2_async_notifier *notifier, |
1350 | struct v4l2_subdev *subdev, | |
1351 | struct v4l2_async_subdev *asd) | |
1352 | { | |
1353 | struct fimc_md *fmd = notifier_to_fimc_md(notifier); | |
1354 | struct fimc_sensor_info *si = NULL; | |
1355 | int i; | |
1356 | ||
1357 | /* Find platform data for this sensor subdev */ | |
1358 | for (i = 0; i < ARRAY_SIZE(fmd->sensor); i++) | |
1359 | if (fmd->sensor[i].asd.match.of.node == subdev->dev->of_node) | |
1360 | si = &fmd->sensor[i]; | |
1361 | ||
1362 | if (si == NULL) | |
1363 | return -EINVAL; | |
1364 | ||
1365 | v4l2_set_subdev_hostdata(subdev, &si->pdata); | |
1366 | ||
1367 | if (si->pdata.fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) | |
1368 | subdev->grp_id = GRP_ID_FIMC_IS_SENSOR; | |
1369 | else | |
1370 | subdev->grp_id = GRP_ID_SENSOR; | |
1371 | ||
1372 | si->subdev = subdev; | |
1373 | ||
1374 | v4l2_info(&fmd->v4l2_dev, "Registered sensor subdevice: %s (%d)\n", | |
1375 | subdev->name, fmd->num_sensors); | |
1376 | ||
1377 | fmd->num_sensors++; | |
1378 | ||
1379 | return 0; | |
1380 | } | |
1381 | ||
1382 | static int subdev_notifier_complete(struct v4l2_async_notifier *notifier) | |
1383 | { | |
1384 | struct fimc_md *fmd = notifier_to_fimc_md(notifier); | |
1385 | int ret; | |
1386 | ||
1387 | mutex_lock(&fmd->media_dev.graph_mutex); | |
1388 | ||
1389 | ret = fimc_md_create_links(fmd); | |
1390 | if (ret < 0) | |
1391 | goto unlock; | |
1392 | ||
1393 | ret = v4l2_device_register_subdev_nodes(&fmd->v4l2_dev); | |
1394 | unlock: | |
1395 | mutex_unlock(&fmd->media_dev.graph_mutex); | |
9832e155 JMC |
1396 | if (ret < 0) |
1397 | return ret; | |
1398 | ||
1399 | return media_device_register(&fmd->media_dev); | |
fa91f105 SN |
1400 | } |
1401 | ||
ecd9acbf | 1402 | static int fimc_md_probe(struct platform_device *pdev) |
d3953223 | 1403 | { |
e2985a26 | 1404 | struct device *dev = &pdev->dev; |
d3953223 SN |
1405 | struct v4l2_device *v4l2_dev; |
1406 | struct fimc_md *fmd; | |
1407 | int ret; | |
1408 | ||
e2985a26 | 1409 | fmd = devm_kzalloc(dev, sizeof(*fmd), GFP_KERNEL); |
d3953223 SN |
1410 | if (!fmd) |
1411 | return -ENOMEM; | |
1412 | ||
1413 | spin_lock_init(&fmd->slock); | |
403dfbec | 1414 | INIT_LIST_HEAD(&fmd->pipelines); |
49b2f4c5 | 1415 | fmd->pdev = pdev; |
d3953223 SN |
1416 | |
1417 | strlcpy(fmd->media_dev.model, "SAMSUNG S5P FIMC", | |
1418 | sizeof(fmd->media_dev.model)); | |
1419 | fmd->media_dev.link_notify = fimc_md_link_notify; | |
e2985a26 | 1420 | fmd->media_dev.dev = dev; |
d3953223 SN |
1421 | |
1422 | v4l2_dev = &fmd->v4l2_dev; | |
1423 | v4l2_dev->mdev = &fmd->media_dev; | |
e1d72f4d | 1424 | v4l2_dev->notify = fimc_sensor_notify; |
e2985a26 | 1425 | strlcpy(v4l2_dev->name, "s5p-fimc-md", sizeof(v4l2_dev->name)); |
d3953223 | 1426 | |
e781bbe3 | 1427 | fmd->use_isp = fimc_md_is_isp_available(dev->of_node); |
49b2f4c5 | 1428 | fmd->user_subdev_api = true; |
e781bbe3 | 1429 | |
2e7508e4 MCC |
1430 | media_device_init(&fmd->media_dev); |
1431 | ||
e2985a26 | 1432 | ret = v4l2_device_register(dev, &fmd->v4l2_dev); |
d3953223 SN |
1433 | if (ret < 0) { |
1434 | v4l2_err(v4l2_dev, "Failed to register v4l2_device: %d\n", ret); | |
6d91a51a | 1435 | return ret; |
d3953223 | 1436 | } |
d3f5e0c5 | 1437 | |
d3953223 SN |
1438 | ret = fimc_md_get_clocks(fmd); |
1439 | if (ret) | |
fa91f105 | 1440 | goto err_md; |
d3953223 | 1441 | |
4163851f SN |
1442 | ret = fimc_md_get_pinctrl(fmd); |
1443 | if (ret < 0) { | |
1444 | if (ret != EPROBE_DEFER) | |
1445 | dev_err(dev, "Failed to get pinctrl: %d\n", ret); | |
fa91f105 | 1446 | goto err_clk; |
4163851f SN |
1447 | } |
1448 | ||
fa91f105 SN |
1449 | platform_set_drvdata(pdev, fmd); |
1450 | ||
49b2f4c5 | 1451 | ret = fimc_md_register_platform_entities(fmd, dev->of_node); |
243d4c02 | 1452 | if (ret) |
fa91f105 | 1453 | goto err_clk; |
d3953223 | 1454 | |
49b2f4c5 | 1455 | ret = fimc_md_register_sensor_entities(fmd); |
243d4c02 | 1456 | if (ret) |
49b2f4c5 | 1457 | goto err_m_ent; |
d3953223 SN |
1458 | |
1459 | ret = device_create_file(&pdev->dev, &dev_attr_subdev_conf_mode); | |
693f5c40 | 1460 | if (ret) |
fa91f105 SN |
1461 | goto err_m_ent; |
1462 | /* | |
1463 | * FIMC platform devices need to be registered before the sclk_cam | |
1464 | * clocks provider, as one of these devices needs to be activated | |
1465 | * to enable the clock. | |
1466 | */ | |
1467 | ret = fimc_md_register_clk_provider(fmd); | |
1468 | if (ret < 0) { | |
1469 | v4l2_err(v4l2_dev, "clock provider registration failed\n"); | |
1470 | goto err_attr; | |
1471 | } | |
1472 | ||
1473 | if (fmd->num_sensors > 0) { | |
1474 | fmd->subdev_notifier.subdevs = fmd->async_subdevs; | |
1475 | fmd->subdev_notifier.num_subdevs = fmd->num_sensors; | |
1476 | fmd->subdev_notifier.bound = subdev_notifier_bound; | |
1477 | fmd->subdev_notifier.complete = subdev_notifier_complete; | |
1478 | fmd->num_sensors = 0; | |
1479 | ||
1480 | ret = v4l2_async_notifier_register(&fmd->v4l2_dev, | |
1481 | &fmd->subdev_notifier); | |
1482 | if (ret) | |
1483 | goto err_clk_p; | |
1484 | } | |
693f5c40 | 1485 | |
693f5c40 SN |
1486 | return 0; |
1487 | ||
fa91f105 SN |
1488 | err_clk_p: |
1489 | fimc_md_unregister_clk_provider(fmd); | |
1490 | err_attr: | |
1491 | device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode); | |
693f5c40 | 1492 | err_clk: |
d3953223 | 1493 | fimc_md_put_clocks(fmd); |
fa91f105 | 1494 | err_m_ent: |
d3953223 | 1495 | fimc_md_unregister_entities(fmd); |
693f5c40 | 1496 | err_md: |
9832e155 | 1497 | media_device_cleanup(&fmd->media_dev); |
d3953223 | 1498 | v4l2_device_unregister(&fmd->v4l2_dev); |
d3953223 SN |
1499 | return ret; |
1500 | } | |
1501 | ||
4c62e976 | 1502 | static int fimc_md_remove(struct platform_device *pdev) |
d3953223 SN |
1503 | { |
1504 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1505 | ||
1506 | if (!fmd) | |
1507 | return 0; | |
b74bee15 | 1508 | |
d3f5e0c5 | 1509 | fimc_md_unregister_clk_provider(fmd); |
fa91f105 SN |
1510 | v4l2_async_notifier_unregister(&fmd->subdev_notifier); |
1511 | ||
b74bee15 | 1512 | v4l2_device_unregister(&fmd->v4l2_dev); |
d3953223 SN |
1513 | device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode); |
1514 | fimc_md_unregister_entities(fmd); | |
403dfbec | 1515 | fimc_md_pipelines_free(fmd); |
d3953223 | 1516 | media_device_unregister(&fmd->media_dev); |
9832e155 | 1517 | media_device_cleanup(&fmd->media_dev); |
d3953223 | 1518 | fimc_md_put_clocks(fmd); |
fa91f105 | 1519 | |
d3953223 SN |
1520 | return 0; |
1521 | } | |
1522 | ||
c42639d8 | 1523 | static const struct platform_device_id fimc_driver_ids[] __always_unused = { |
e2985a26 SN |
1524 | { .name = "s5p-fimc-md" }, |
1525 | { }, | |
1526 | }; | |
1527 | MODULE_DEVICE_TABLE(platform, fimc_driver_ids); | |
1528 | ||
1529 | static const struct of_device_id fimc_md_of_match[] = { | |
1530 | { .compatible = "samsung,fimc" }, | |
1531 | { }, | |
1532 | }; | |
1533 | MODULE_DEVICE_TABLE(of, fimc_md_of_match); | |
1534 | ||
d3953223 SN |
1535 | static struct platform_driver fimc_md_driver = { |
1536 | .probe = fimc_md_probe, | |
4c62e976 | 1537 | .remove = fimc_md_remove, |
d3953223 | 1538 | .driver = { |
e2985a26 SN |
1539 | .of_match_table = of_match_ptr(fimc_md_of_match), |
1540 | .name = "s5p-fimc-md", | |
d3953223 SN |
1541 | } |
1542 | }; | |
1543 | ||
7e566be2 | 1544 | static int __init fimc_md_init(void) |
d3953223 SN |
1545 | { |
1546 | int ret; | |
ecd9acbf | 1547 | |
d3953223 SN |
1548 | request_module("s5p-csis"); |
1549 | ret = fimc_register_driver(); | |
1550 | if (ret) | |
1551 | return ret; | |
ecd9acbf | 1552 | |
d3953223 SN |
1553 | return platform_driver_register(&fimc_md_driver); |
1554 | } | |
7e566be2 SK |
1555 | |
1556 | static void __exit fimc_md_exit(void) | |
d3953223 SN |
1557 | { |
1558 | platform_driver_unregister(&fimc_md_driver); | |
1559 | fimc_unregister_driver(); | |
1560 | } | |
1561 | ||
1562 | module_init(fimc_md_init); | |
1563 | module_exit(fimc_md_exit); | |
1564 | ||
1565 | MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); | |
1566 | MODULE_DESCRIPTION("S5P FIMC camera host interface/video postprocessor driver"); | |
1567 | MODULE_LICENSE("GPL"); | |
1568 | MODULE_VERSION("2.0.1"); |