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> | |
d3953223 SN |
25 | #include <linux/platform_device.h> |
26 | #include <linux/pm_runtime.h> | |
27 | #include <linux/types.h> | |
28 | #include <linux/slab.h> | |
fa91f105 | 29 | #include <media/v4l2-async.h> |
131b6c61 | 30 | #include <media/v4l2-ctrls.h> |
e2985a26 | 31 | #include <media/v4l2-of.h> |
d3953223 | 32 | #include <media/media-device.h> |
b9ee31e6 | 33 | #include <media/s5p_fimc.h> |
d3953223 | 34 | |
56fa1a6a | 35 | #include "media-dev.h" |
d3953223 | 36 | #include "fimc-core.h" |
e781bbe3 | 37 | #include "fimc-is.h" |
0f735f52 | 38 | #include "fimc-lite.h" |
d3953223 SN |
39 | #include "mipi-csis.h" |
40 | ||
41 | static int __fimc_md_set_camclk(struct fimc_md *fmd, | |
4c8f0629 | 42 | struct fimc_source_info *si, |
d3953223 | 43 | bool on); |
52917bcb SN |
44 | |
45 | /* Set up image sensor subdev -> FIMC capture node notifications. */ | |
46 | static void __setup_sensor_notification(struct fimc_md *fmd, | |
47 | struct v4l2_subdev *sensor, | |
48 | struct v4l2_subdev *fimc_sd) | |
49 | { | |
50 | struct fimc_source_info *src_inf; | |
51 | struct fimc_sensor_info *md_si; | |
52 | unsigned long flags; | |
53 | ||
54 | src_inf = v4l2_get_subdev_hostdata(sensor); | |
55 | if (!src_inf || WARN_ON(fmd == NULL)) | |
56 | return; | |
57 | ||
58 | md_si = source_to_sensor_info(src_inf); | |
59 | spin_lock_irqsave(&fmd->slock, flags); | |
60 | md_si->host = v4l2_get_subdevdata(fimc_sd); | |
61 | spin_unlock_irqrestore(&fmd->slock, flags); | |
62 | } | |
63 | ||
d3953223 SN |
64 | /** |
65 | * fimc_pipeline_prepare - update pipeline information with subdevice pointers | |
39bb6df6 | 66 | * @me: media entity terminating the pipeline |
d3953223 SN |
67 | * |
68 | * Caller holds the graph mutex. | |
69 | */ | |
b9ee31e6 | 70 | static void fimc_pipeline_prepare(struct fimc_pipeline *p, |
403dfbec | 71 | struct media_entity *me) |
d3953223 | 72 | { |
52917bcb | 73 | struct fimc_md *fmd = entity_to_fimc_mdev(me); |
d3953223 | 74 | struct v4l2_subdev *sd; |
52917bcb | 75 | struct v4l2_subdev *sensor = NULL; |
0f735f52 | 76 | int i; |
d3953223 | 77 | |
0f735f52 SN |
78 | for (i = 0; i < IDX_MAX; i++) |
79 | p->subdevs[i] = NULL; | |
d3953223 | 80 | |
0f735f52 | 81 | while (1) { |
39bb6df6 SN |
82 | struct media_pad *pad = NULL; |
83 | ||
84 | /* Find remote source pad */ | |
85 | for (i = 0; i < me->num_pads; i++) { | |
86 | struct media_pad *spad = &me->pads[i]; | |
87 | if (!(spad->flags & MEDIA_PAD_FL_SINK)) | |
88 | continue; | |
1bddf1b3 | 89 | pad = media_entity_remote_pad(spad); |
39bb6df6 SN |
90 | if (pad) |
91 | break; | |
92 | } | |
0f735f52 | 93 | |
0f735f52 SN |
94 | if (pad == NULL || |
95 | media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) | |
96 | break; | |
0f735f52 SN |
97 | sd = media_entity_to_v4l2_subdev(pad->entity); |
98 | ||
99 | switch (sd->grp_id) { | |
588c87be | 100 | case GRP_ID_SENSOR: |
52917bcb SN |
101 | sensor = sd; |
102 | /* fall through */ | |
103 | case GRP_ID_FIMC_IS_SENSOR: | |
0f735f52 SN |
104 | p->subdevs[IDX_SENSOR] = sd; |
105 | break; | |
588c87be | 106 | case GRP_ID_CSIS: |
0f735f52 SN |
107 | p->subdevs[IDX_CSIS] = sd; |
108 | break; | |
588c87be | 109 | case GRP_ID_FLITE: |
4af81310 SN |
110 | p->subdevs[IDX_FLITE] = sd; |
111 | break; | |
588c87be | 112 | case GRP_ID_FIMC: |
52917bcb | 113 | p->subdevs[IDX_FIMC] = sd; |
0f735f52 | 114 | break; |
e781bbe3 SN |
115 | case GRP_ID_FIMC_IS: |
116 | p->subdevs[IDX_IS_ISP] = sd; | |
117 | break; | |
0f735f52 | 118 | default: |
e781bbe3 | 119 | break; |
0f735f52 | 120 | } |
39bb6df6 SN |
121 | me = &sd->entity; |
122 | if (me->num_pads == 1) | |
123 | break; | |
d3953223 | 124 | } |
52917bcb SN |
125 | |
126 | if (sensor && p->subdevs[IDX_FIMC]) | |
127 | __setup_sensor_notification(fmd, sensor, p->subdevs[IDX_FIMC]); | |
d3953223 SN |
128 | } |
129 | ||
130 | /** | |
131 | * __subdev_set_power - change power state of a single subdev | |
132 | * @sd: subdevice to change power state for | |
133 | * @on: 1 to enable power or 0 to disable | |
134 | * | |
135 | * Return result of s_power subdev operation or -ENXIO if sd argument | |
136 | * is NULL. Return 0 if the subdevice does not implement s_power. | |
137 | */ | |
138 | static int __subdev_set_power(struct v4l2_subdev *sd, int on) | |
139 | { | |
140 | int *use_count; | |
141 | int ret; | |
142 | ||
143 | if (sd == NULL) | |
144 | return -ENXIO; | |
145 | ||
146 | use_count = &sd->entity.use_count; | |
147 | if (on && (*use_count)++ > 0) | |
148 | return 0; | |
149 | else if (!on && (*use_count == 0 || --(*use_count) > 0)) | |
150 | return 0; | |
151 | ret = v4l2_subdev_call(sd, core, s_power, on); | |
152 | ||
153 | return ret != -ENOIOCTLCMD ? ret : 0; | |
154 | } | |
155 | ||
156 | /** | |
157 | * fimc_pipeline_s_power - change power state of all pipeline subdevs | |
158 | * @fimc: fimc device terminating the pipeline | |
0f735f52 | 159 | * @state: true to power on, false to power off |
d3953223 | 160 | * |
0f735f52 | 161 | * Needs to be called with the graph mutex held. |
d3953223 | 162 | */ |
f8bca4f5 | 163 | static int fimc_pipeline_s_power(struct fimc_pipeline *p, bool on) |
d3953223 | 164 | { |
f8bca4f5 SN |
165 | static const u8 seq[2][IDX_MAX - 1] = { |
166 | { IDX_IS_ISP, IDX_SENSOR, IDX_CSIS, IDX_FLITE }, | |
167 | { IDX_CSIS, IDX_FLITE, IDX_SENSOR, IDX_IS_ISP }, | |
168 | }; | |
169 | int i, ret = 0; | |
d3953223 | 170 | |
0f735f52 | 171 | if (p->subdevs[IDX_SENSOR] == NULL) |
d3953223 SN |
172 | return -ENXIO; |
173 | ||
f8bca4f5 SN |
174 | for (i = 0; i < IDX_MAX - 1; i++) { |
175 | unsigned int idx = seq[on][i]; | |
176 | ||
177 | ret = __subdev_set_power(p->subdevs[idx], on); | |
178 | ||
0f735f52 | 179 | |
0f735f52 | 180 | if (ret < 0 && ret != -ENXIO) |
f8bca4f5 | 181 | goto error; |
d3953223 | 182 | } |
0f735f52 | 183 | return 0; |
f8bca4f5 SN |
184 | error: |
185 | for (; i >= 0; i--) { | |
186 | unsigned int idx = seq[on][i]; | |
187 | __subdev_set_power(p->subdevs[idx], !on); | |
188 | } | |
189 | return ret; | |
d3953223 SN |
190 | } |
191 | ||
192 | /** | |
b9ee31e6 SN |
193 | * __fimc_pipeline_open - update the pipeline information, enable power |
194 | * of all pipeline subdevs and the sensor clock | |
d3953223 | 195 | * @me: media entity to start graph walk with |
056f4f30 | 196 | * @prepare: true to walk the current pipeline and acquire all subdevs |
d3953223 | 197 | * |
740ad921 | 198 | * Called with the graph mutex held. |
d3953223 | 199 | */ |
403dfbec | 200 | static int __fimc_pipeline_open(struct exynos_media_pipeline *ep, |
056f4f30 | 201 | struct media_entity *me, bool prepare) |
d3953223 | 202 | { |
056f4f30 | 203 | struct fimc_md *fmd = entity_to_fimc_mdev(me); |
403dfbec | 204 | struct fimc_pipeline *p = to_fimc_pipeline(ep); |
056f4f30 | 205 | struct v4l2_subdev *sd; |
d3953223 SN |
206 | int ret; |
207 | ||
056f4f30 SN |
208 | if (WARN_ON(p == NULL || me == NULL)) |
209 | return -EINVAL; | |
210 | ||
211 | if (prepare) | |
0f735f52 SN |
212 | fimc_pipeline_prepare(p, me); |
213 | ||
056f4f30 SN |
214 | sd = p->subdevs[IDX_SENSOR]; |
215 | if (sd == NULL) | |
d3953223 | 216 | return -EINVAL; |
0f735f52 | 217 | |
056f4f30 SN |
218 | /* Disable PXLASYNC clock if this pipeline includes FIMC-IS */ |
219 | if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP]) { | |
220 | ret = clk_prepare_enable(fmd->wbclk[CLK_IDX_WB_B]); | |
221 | if (ret < 0) | |
222 | return ret; | |
223 | } | |
fa91f105 | 224 | |
056f4f30 SN |
225 | ret = fimc_md_set_camclk(sd, true); |
226 | if (ret < 0) | |
227 | goto err_wbclk; | |
228 | ||
229 | ret = fimc_pipeline_s_power(p, 1); | |
230 | if (!ret) | |
231 | return 0; | |
0f735f52 | 232 | |
056f4f30 SN |
233 | fimc_md_set_camclk(sd, false); |
234 | ||
235 | err_wbclk: | |
236 | if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP]) | |
237 | clk_disable_unprepare(fmd->wbclk[CLK_IDX_WB_B]); | |
238 | ||
239 | return ret; | |
d3953223 SN |
240 | } |
241 | ||
d3953223 | 242 | /** |
b9ee31e6 | 243 | * __fimc_pipeline_close - disable the sensor clock and pipeline power |
d3953223 SN |
244 | * @fimc: fimc device terminating the pipeline |
245 | * | |
740ad921 | 246 | * Disable power of all subdevs and turn the external sensor clock off. |
d3953223 | 247 | */ |
403dfbec | 248 | static int __fimc_pipeline_close(struct exynos_media_pipeline *ep) |
d3953223 | 249 | { |
403dfbec | 250 | struct fimc_pipeline *p = to_fimc_pipeline(ep); |
056f4f30 SN |
251 | struct v4l2_subdev *sd = p ? p->subdevs[IDX_SENSOR] : NULL; |
252 | struct fimc_md *fmd; | |
36da6fcd | 253 | int ret; |
740ad921 | 254 | |
36da6fcd SN |
255 | if (sd == NULL) { |
256 | pr_warn("%s(): No sensor subdev\n", __func__); | |
257 | return 0; | |
d3953223 | 258 | } |
056f4f30 | 259 | |
36da6fcd SN |
260 | ret = fimc_pipeline_s_power(p, 0); |
261 | fimc_md_set_camclk(sd, false); | |
262 | ||
056f4f30 SN |
263 | fmd = entity_to_fimc_mdev(&sd->entity); |
264 | ||
265 | /* Disable PXLASYNC clock if this pipeline includes FIMC-IS */ | |
266 | if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP]) | |
267 | clk_disable_unprepare(fmd->wbclk[CLK_IDX_WB_B]); | |
268 | ||
d3953223 SN |
269 | return ret == -ENXIO ? 0 : ret; |
270 | } | |
271 | ||
d3953223 | 272 | /** |
8d274e7c | 273 | * __fimc_pipeline_s_stream - call s_stream() on pipeline subdevs |
0f735f52 | 274 | * @pipeline: video pipeline structure |
8d274e7c | 275 | * @on: passed as the s_stream() callback argument |
d3953223 | 276 | */ |
403dfbec | 277 | static int __fimc_pipeline_s_stream(struct exynos_media_pipeline *ep, bool on) |
d3953223 | 278 | { |
8d274e7c SN |
279 | static const u8 seq[2][IDX_MAX] = { |
280 | { IDX_FIMC, IDX_SENSOR, IDX_IS_ISP, IDX_CSIS, IDX_FLITE }, | |
281 | { IDX_CSIS, IDX_FLITE, IDX_FIMC, IDX_SENSOR, IDX_IS_ISP }, | |
282 | }; | |
403dfbec | 283 | struct fimc_pipeline *p = to_fimc_pipeline(ep); |
8d274e7c | 284 | int i, ret = 0; |
d3953223 | 285 | |
0f735f52 | 286 | if (p->subdevs[IDX_SENSOR] == NULL) |
d3953223 SN |
287 | return -ENODEV; |
288 | ||
0f735f52 | 289 | for (i = 0; i < IDX_MAX; i++) { |
8d274e7c | 290 | unsigned int idx = seq[on][i]; |
0f735f52 SN |
291 | |
292 | ret = v4l2_subdev_call(p->subdevs[idx], video, s_stream, on); | |
293 | ||
294 | if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV) | |
8d274e7c | 295 | goto error; |
0f735f52 | 296 | } |
0f735f52 | 297 | return 0; |
8d274e7c SN |
298 | error: |
299 | for (; i >= 0; i--) { | |
300 | unsigned int idx = seq[on][i]; | |
301 | v4l2_subdev_call(p->subdevs[idx], video, s_stream, !on); | |
302 | } | |
303 | return ret; | |
d3953223 | 304 | } |
b9ee31e6 SN |
305 | |
306 | /* Media pipeline operations for the FIMC/FIMC-LITE video device driver */ | |
403dfbec | 307 | static const struct exynos_media_pipeline_ops fimc_pipeline_ops = { |
740ad921 SN |
308 | .open = __fimc_pipeline_open, |
309 | .close = __fimc_pipeline_close, | |
310 | .set_stream = __fimc_pipeline_s_stream, | |
b9ee31e6 | 311 | }; |
d3953223 | 312 | |
403dfbec SN |
313 | static struct exynos_media_pipeline *fimc_md_pipeline_create( |
314 | struct fimc_md *fmd) | |
315 | { | |
316 | struct fimc_pipeline *p; | |
317 | ||
318 | p = kzalloc(sizeof(*p), GFP_KERNEL); | |
319 | if (!p) | |
320 | return NULL; | |
321 | ||
322 | list_add_tail(&p->list, &fmd->pipelines); | |
323 | ||
324 | p->ep.ops = &fimc_pipeline_ops; | |
325 | return &p->ep; | |
326 | } | |
327 | ||
328 | static void fimc_md_pipelines_free(struct fimc_md *fmd) | |
329 | { | |
330 | while (!list_empty(&fmd->pipelines)) { | |
331 | struct fimc_pipeline *p; | |
332 | ||
333 | p = list_entry(fmd->pipelines.next, typeof(*p), list); | |
334 | list_del(&p->list); | |
335 | kfree(p); | |
336 | } | |
337 | } | |
338 | ||
d3953223 SN |
339 | /* |
340 | * Sensor subdevice helper functions | |
341 | */ | |
342 | static struct v4l2_subdev *fimc_md_register_sensor(struct fimc_md *fmd, | |
4c8f0629 | 343 | struct fimc_source_info *si) |
d3953223 SN |
344 | { |
345 | struct i2c_adapter *adapter; | |
346 | struct v4l2_subdev *sd = NULL; | |
347 | ||
4c8f0629 | 348 | if (!si || !fmd) |
d3953223 | 349 | return NULL; |
88fa8311 SN |
350 | /* |
351 | * If FIMC bus type is not Writeback FIFO assume it is same | |
352 | * as sensor_bus_type. | |
353 | */ | |
4c8f0629 | 354 | si->fimc_bus_type = si->sensor_bus_type; |
d3953223 | 355 | |
4c8f0629 | 356 | adapter = i2c_get_adapter(si->i2c_bus_num); |
ecd9acbf SN |
357 | if (!adapter) { |
358 | v4l2_warn(&fmd->v4l2_dev, | |
359 | "Failed to get I2C adapter %d, deferring probe\n", | |
4c8f0629 | 360 | si->i2c_bus_num); |
ecd9acbf SN |
361 | return ERR_PTR(-EPROBE_DEFER); |
362 | } | |
d3953223 | 363 | sd = v4l2_i2c_new_subdev_board(&fmd->v4l2_dev, adapter, |
4c8f0629 | 364 | si->board_info, NULL); |
d3953223 | 365 | if (IS_ERR_OR_NULL(sd)) { |
7acde02a | 366 | i2c_put_adapter(adapter); |
ecd9acbf SN |
367 | v4l2_warn(&fmd->v4l2_dev, |
368 | "Failed to acquire subdev %s, deferring probe\n", | |
4c8f0629 | 369 | si->board_info->type); |
ecd9acbf | 370 | return ERR_PTR(-EPROBE_DEFER); |
d3953223 | 371 | } |
4c8f0629 | 372 | v4l2_set_subdev_hostdata(sd, si); |
588c87be | 373 | sd->grp_id = GRP_ID_SENSOR; |
d3953223 SN |
374 | |
375 | v4l2_info(&fmd->v4l2_dev, "Registered sensor subdevice %s\n", | |
2b13f7d4 | 376 | sd->name); |
d3953223 SN |
377 | return sd; |
378 | } | |
379 | ||
380 | static void fimc_md_unregister_sensor(struct v4l2_subdev *sd) | |
381 | { | |
382 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
7acde02a | 383 | struct i2c_adapter *adapter; |
d3953223 | 384 | |
fa91f105 | 385 | if (!client || client->dev.of_node) |
d3953223 | 386 | return; |
e781bbe3 | 387 | |
d3953223 | 388 | v4l2_device_unregister_subdev(sd); |
2b13f7d4 | 389 | |
fa91f105 SN |
390 | adapter = client->adapter; |
391 | i2c_unregister_device(client); | |
392 | if (adapter) | |
393 | i2c_put_adapter(adapter); | |
d3953223 SN |
394 | } |
395 | ||
e2985a26 | 396 | #ifdef CONFIG_OF |
2b13f7d4 SN |
397 | /* Parse port node and register as a sub-device any sensor specified there. */ |
398 | static int fimc_md_parse_port_node(struct fimc_md *fmd, | |
399 | struct device_node *port, | |
400 | unsigned int index) | |
401 | { | |
402 | struct device_node *rem, *ep, *np; | |
403 | struct fimc_source_info *pd; | |
404 | struct v4l2_of_endpoint endpoint; | |
2b13f7d4 SN |
405 | u32 val; |
406 | ||
407 | pd = &fmd->sensor[index].pdata; | |
408 | ||
409 | /* Assume here a port node can have only one endpoint node. */ | |
410 | ep = of_get_next_child(port, NULL); | |
411 | if (!ep) | |
412 | return 0; | |
413 | ||
414 | v4l2_of_parse_endpoint(ep, &endpoint); | |
415 | if (WARN_ON(endpoint.port == 0) || index >= FIMC_MAX_SENSORS) | |
416 | return -EINVAL; | |
417 | ||
418 | pd->mux_id = (endpoint.port - 1) & 0x1; | |
419 | ||
420 | rem = v4l2_of_get_remote_port_parent(ep); | |
421 | of_node_put(ep); | |
422 | if (rem == NULL) { | |
423 | v4l2_info(&fmd->v4l2_dev, "Remote device at %s not found\n", | |
424 | ep->full_name); | |
425 | return 0; | |
426 | } | |
427 | if (!of_property_read_u32(rem, "samsung,camclk-out", &val)) | |
428 | pd->clk_id = val; | |
429 | ||
430 | if (!of_property_read_u32(rem, "clock-frequency", &val)) | |
431 | pd->clk_frequency = val; | |
fa91f105 SN |
432 | else |
433 | pd->clk_frequency = DEFAULT_SENSOR_CLK_FREQ; | |
2b13f7d4 SN |
434 | |
435 | if (pd->clk_frequency == 0) { | |
436 | v4l2_err(&fmd->v4l2_dev, "Wrong clock frequency at node %s\n", | |
437 | rem->full_name); | |
438 | of_node_put(rem); | |
439 | return -EINVAL; | |
440 | } | |
441 | ||
442 | if (fimc_input_is_parallel(endpoint.port)) { | |
443 | if (endpoint.bus_type == V4L2_MBUS_PARALLEL) | |
444 | pd->sensor_bus_type = FIMC_BUS_TYPE_ITU_601; | |
445 | else | |
446 | pd->sensor_bus_type = FIMC_BUS_TYPE_ITU_656; | |
447 | pd->flags = endpoint.bus.parallel.flags; | |
448 | } else if (fimc_input_is_mipi_csi(endpoint.port)) { | |
449 | /* | |
450 | * MIPI CSI-2: only input mux selection and | |
451 | * the sensor's clock frequency is needed. | |
452 | */ | |
453 | pd->sensor_bus_type = FIMC_BUS_TYPE_MIPI_CSI2; | |
454 | } else { | |
455 | v4l2_err(&fmd->v4l2_dev, "Wrong port id (%u) at node %s\n", | |
456 | endpoint.port, rem->full_name); | |
457 | } | |
458 | /* | |
459 | * For FIMC-IS handled sensors, that are placed under i2c-isp device | |
460 | * node, FIMC is connected to the FIMC-IS through its ISP Writeback | |
461 | * input. Sensors are attached to the FIMC-LITE hostdata interface | |
462 | * directly or through MIPI-CSIS, depending on the external media bus | |
463 | * used. This needs to be handled in a more reliable way, not by just | |
464 | * checking parent's node name. | |
465 | */ | |
466 | np = of_get_parent(rem); | |
467 | ||
468 | if (np && !of_node_cmp(np->name, "i2c-isp")) | |
469 | pd->fimc_bus_type = FIMC_BUS_TYPE_ISP_WRITEBACK; | |
470 | else | |
471 | pd->fimc_bus_type = pd->sensor_bus_type; | |
472 | ||
fa91f105 SN |
473 | if (WARN_ON(index >= ARRAY_SIZE(fmd->sensor))) |
474 | return -EINVAL; | |
2b13f7d4 | 475 | |
fa91f105 SN |
476 | fmd->sensor[index].asd.match_type = V4L2_ASYNC_MATCH_OF; |
477 | fmd->sensor[index].asd.match.of.node = rem; | |
478 | fmd->async_subdevs[index] = &fmd->sensor[index].asd; | |
479 | ||
480 | fmd->num_sensors++; | |
481 | ||
482 | of_node_put(rem); | |
483 | return 0; | |
2b13f7d4 SN |
484 | } |
485 | ||
486 | /* Register all SoC external sub-devices */ | |
487 | static int fimc_md_of_sensors_register(struct fimc_md *fmd, | |
488 | struct device_node *np) | |
489 | { | |
490 | struct device_node *parent = fmd->pdev->dev.of_node; | |
491 | struct device_node *node, *ports; | |
492 | int index = 0; | |
493 | int ret; | |
494 | ||
495 | /* Attach sensors linked to MIPI CSI-2 receivers */ | |
496 | for_each_available_child_of_node(parent, node) { | |
497 | struct device_node *port; | |
498 | ||
499 | if (of_node_cmp(node->name, "csis")) | |
500 | continue; | |
501 | /* The csis node can have only port subnode. */ | |
502 | port = of_get_next_child(node, NULL); | |
503 | if (!port) | |
504 | continue; | |
505 | ||
506 | ret = fimc_md_parse_port_node(fmd, port, index); | |
507 | if (ret < 0) | |
508 | return ret; | |
509 | index++; | |
510 | } | |
511 | ||
512 | /* Attach sensors listed in the parallel-ports node */ | |
513 | ports = of_get_child_by_name(parent, "parallel-ports"); | |
514 | if (!ports) | |
515 | return 0; | |
516 | ||
517 | for_each_child_of_node(ports, node) { | |
518 | ret = fimc_md_parse_port_node(fmd, node, index); | |
519 | if (ret < 0) | |
520 | break; | |
521 | index++; | |
522 | } | |
523 | ||
524 | return 0; | |
525 | } | |
526 | ||
e2985a26 SN |
527 | static int __of_get_csis_id(struct device_node *np) |
528 | { | |
529 | u32 reg = 0; | |
530 | ||
531 | np = of_get_child_by_name(np, "port"); | |
532 | if (!np) | |
533 | return -EINVAL; | |
534 | of_property_read_u32(np, "reg", ®); | |
535 | return reg - FIMC_INPUT_MIPI_CSI2_0; | |
536 | } | |
537 | #else | |
2b13f7d4 | 538 | #define fimc_md_of_sensors_register(fmd, np) (-ENOSYS) |
e2985a26 SN |
539 | #define __of_get_csis_id(np) (-ENOSYS) |
540 | #endif | |
541 | ||
d3953223 SN |
542 | static int fimc_md_register_sensor_entities(struct fimc_md *fmd) |
543 | { | |
544 | struct s5p_platform_fimc *pdata = fmd->pdev->dev.platform_data; | |
2b13f7d4 | 545 | struct device_node *of_node = fmd->pdev->dev.of_node; |
2b13f7d4 SN |
546 | int num_clients = 0; |
547 | int ret, i; | |
d3953223 SN |
548 | |
549 | /* | |
550 | * Runtime resume one of the FIMC entities to make sure | |
551 | * the sclk_cam clocks are not globally disabled. | |
552 | */ | |
3e20c345 | 553 | if (!fmd->pmf) |
d3953223 | 554 | return -ENXIO; |
2b13f7d4 | 555 | |
3e20c345 | 556 | ret = pm_runtime_get_sync(fmd->pmf); |
d3953223 SN |
557 | if (ret < 0) |
558 | return ret; | |
559 | ||
2b13f7d4 SN |
560 | if (of_node) { |
561 | fmd->num_sensors = 0; | |
562 | ret = fimc_md_of_sensors_register(fmd, of_node); | |
563 | } else if (pdata) { | |
564 | WARN_ON(pdata->num_clients > ARRAY_SIZE(fmd->sensor)); | |
565 | num_clients = min_t(u32, pdata->num_clients, | |
566 | ARRAY_SIZE(fmd->sensor)); | |
567 | fmd->num_sensors = num_clients; | |
d3953223 | 568 | |
2b13f7d4 | 569 | for (i = 0; i < num_clients; i++) { |
4c8f0629 | 570 | struct fimc_sensor_info *si = &fmd->sensor[i]; |
2b13f7d4 | 571 | struct v4l2_subdev *sd; |
ecd9acbf | 572 | |
4c8f0629 SN |
573 | si->pdata = pdata->source_info[i]; |
574 | ret = __fimc_md_set_camclk(fmd, &si->pdata, true); | |
2b13f7d4 SN |
575 | if (ret) |
576 | break; | |
4c8f0629 SN |
577 | sd = fimc_md_register_sensor(fmd, &si->pdata); |
578 | ret = __fimc_md_set_camclk(fmd, &si->pdata, false); | |
2b13f7d4 SN |
579 | |
580 | if (IS_ERR(sd)) { | |
4c8f0629 | 581 | si->subdev = NULL; |
2b13f7d4 SN |
582 | ret = PTR_ERR(sd); |
583 | break; | |
584 | } | |
4c8f0629 | 585 | si->subdev = sd; |
2b13f7d4 SN |
586 | if (ret) |
587 | break; | |
ecd9acbf | 588 | } |
d3953223 | 589 | } |
2b13f7d4 | 590 | |
3e20c345 | 591 | pm_runtime_put(fmd->pmf); |
d3953223 SN |
592 | return ret; |
593 | } | |
594 | ||
595 | /* | |
7b43a6f3 | 596 | * MIPI-CSIS, FIMC and FIMC-LITE platform devices registration. |
d3953223 | 597 | */ |
7b43a6f3 SN |
598 | |
599 | static int register_fimc_lite_entity(struct fimc_md *fmd, | |
600 | struct fimc_lite *fimc_lite) | |
d3953223 | 601 | { |
8163ec0b | 602 | struct v4l2_subdev *sd; |
403dfbec | 603 | struct exynos_media_pipeline *ep; |
afd7348c | 604 | int ret; |
4af81310 | 605 | |
7b43a6f3 SN |
606 | if (WARN_ON(fimc_lite->index >= FIMC_LITE_MAX_DEVS || |
607 | fmd->fimc_lite[fimc_lite->index])) | |
608 | return -EBUSY; | |
d3953223 | 609 | |
7b43a6f3 SN |
610 | sd = &fimc_lite->subdev; |
611 | sd->grp_id = GRP_ID_FLITE; | |
403dfbec SN |
612 | |
613 | ep = fimc_md_pipeline_create(fmd); | |
614 | if (!ep) | |
615 | return -ENOMEM; | |
616 | ||
617 | v4l2_set_subdev_hostdata(sd, ep); | |
693f5c40 SN |
618 | |
619 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); | |
7b43a6f3 SN |
620 | if (!ret) |
621 | fmd->fimc_lite[fimc_lite->index] = fimc_lite; | |
622 | else | |
623 | v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.LITE%d\n", | |
624 | fimc_lite->index); | |
625 | return ret; | |
d3953223 SN |
626 | } |
627 | ||
7b43a6f3 | 628 | static int register_fimc_entity(struct fimc_md *fmd, struct fimc_dev *fimc) |
4af81310 | 629 | { |
7b43a6f3 | 630 | struct v4l2_subdev *sd; |
403dfbec | 631 | struct exynos_media_pipeline *ep; |
4af81310 SN |
632 | int ret; |
633 | ||
7b43a6f3 SN |
634 | if (WARN_ON(fimc->id >= FIMC_MAX_DEVS || fmd->fimc[fimc->id])) |
635 | return -EBUSY; | |
4af81310 | 636 | |
7b43a6f3 SN |
637 | sd = &fimc->vid_cap.subdev; |
638 | sd->grp_id = GRP_ID_FIMC; | |
403dfbec SN |
639 | |
640 | ep = fimc_md_pipeline_create(fmd); | |
641 | if (!ep) | |
642 | return -ENOMEM; | |
643 | ||
644 | v4l2_set_subdev_hostdata(sd, ep); | |
4af81310 | 645 | |
7b43a6f3 SN |
646 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); |
647 | if (!ret) { | |
3e20c345 SN |
648 | if (!fmd->pmf && fimc->pdev) |
649 | fmd->pmf = &fimc->pdev->dev; | |
7b43a6f3 SN |
650 | fmd->fimc[fimc->id] = fimc; |
651 | fimc->vid_cap.user_subdev_api = fmd->user_subdev_api; | |
652 | } else { | |
653 | v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.%d (%d)\n", | |
654 | fimc->id, ret); | |
4af81310 | 655 | } |
7b43a6f3 | 656 | return ret; |
4af81310 SN |
657 | } |
658 | ||
7b43a6f3 SN |
659 | static int register_csis_entity(struct fimc_md *fmd, |
660 | struct platform_device *pdev, | |
661 | struct v4l2_subdev *sd) | |
d3953223 | 662 | { |
7b43a6f3 | 663 | struct device_node *node = pdev->dev.of_node; |
d3953223 SN |
664 | int id, ret; |
665 | ||
e2985a26 | 666 | id = node ? __of_get_csis_id(node) : max(0, pdev->id); |
7b43a6f3 | 667 | |
e2985a26 SN |
668 | if (WARN_ON(id < 0 || id >= CSIS_MAX_ENTITIES)) |
669 | return -ENOENT; | |
7b43a6f3 | 670 | |
e2985a26 SN |
671 | if (WARN_ON(fmd->csis[id].sd)) |
672 | return -EBUSY; | |
d3953223 | 673 | |
588c87be | 674 | sd->grp_id = GRP_ID_CSIS; |
d3953223 | 675 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); |
afd7348c SN |
676 | if (!ret) |
677 | fmd->csis[id].sd = sd; | |
678 | else | |
d3953223 | 679 | v4l2_err(&fmd->v4l2_dev, |
7b43a6f3 | 680 | "Failed to register MIPI-CSIS.%d (%d)\n", id, ret); |
d3953223 SN |
681 | return ret; |
682 | } | |
683 | ||
e781bbe3 SN |
684 | static int register_fimc_is_entity(struct fimc_md *fmd, struct fimc_is *is) |
685 | { | |
686 | struct v4l2_subdev *sd = &is->isp.subdev; | |
687 | int ret; | |
688 | ||
689 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); | |
690 | if (ret) { | |
691 | v4l2_err(&fmd->v4l2_dev, | |
692 | "Failed to register FIMC-ISP (%d)\n", ret); | |
693 | return ret; | |
694 | } | |
695 | ||
696 | fmd->fimc_is = is; | |
697 | return 0; | |
698 | } | |
699 | ||
7b43a6f3 SN |
700 | static int fimc_md_register_platform_entity(struct fimc_md *fmd, |
701 | struct platform_device *pdev, | |
702 | int plat_entity) | |
d3953223 | 703 | { |
7b43a6f3 SN |
704 | struct device *dev = &pdev->dev; |
705 | int ret = -EPROBE_DEFER; | |
706 | void *drvdata; | |
707 | ||
708 | /* Lock to ensure dev->driver won't change. */ | |
709 | device_lock(dev); | |
710 | ||
711 | if (!dev->driver || !try_module_get(dev->driver->owner)) | |
712 | goto dev_unlock; | |
713 | ||
714 | drvdata = dev_get_drvdata(dev); | |
39c1cb2b | 715 | /* Some subdev didn't probe successfully id drvdata is NULL */ |
7b43a6f3 SN |
716 | if (drvdata) { |
717 | switch (plat_entity) { | |
718 | case IDX_FIMC: | |
719 | ret = register_fimc_entity(fmd, drvdata); | |
720 | break; | |
721 | case IDX_FLITE: | |
722 | ret = register_fimc_lite_entity(fmd, drvdata); | |
ecd9acbf | 723 | break; |
7b43a6f3 SN |
724 | case IDX_CSIS: |
725 | ret = register_csis_entity(fmd, pdev, drvdata); | |
726 | break; | |
e781bbe3 SN |
727 | case IDX_IS_ISP: |
728 | ret = register_fimc_is_entity(fmd, drvdata); | |
729 | break; | |
7b43a6f3 SN |
730 | default: |
731 | ret = -ENODEV; | |
ecd9acbf SN |
732 | } |
733 | } | |
d3953223 | 734 | |
7b43a6f3 SN |
735 | module_put(dev->driver->owner); |
736 | dev_unlock: | |
737 | device_unlock(dev); | |
738 | if (ret == -EPROBE_DEFER) | |
739 | dev_info(&fmd->pdev->dev, "deferring %s device registration\n", | |
740 | dev_name(dev)); | |
741 | else if (ret < 0) | |
742 | dev_err(&fmd->pdev->dev, "%s device registration failed (%d)\n", | |
743 | dev_name(dev), ret); | |
744 | return ret; | |
745 | } | |
746 | ||
747 | static int fimc_md_pdev_match(struct device *dev, void *data) | |
748 | { | |
749 | struct platform_device *pdev = to_platform_device(dev); | |
750 | int plat_entity = -1; | |
751 | int ret; | |
752 | char *p; | |
753 | ||
754 | if (!get_device(dev)) | |
755 | return -ENODEV; | |
756 | ||
757 | if (!strcmp(pdev->name, CSIS_DRIVER_NAME)) { | |
758 | plat_entity = IDX_CSIS; | |
7b43a6f3 SN |
759 | } else { |
760 | p = strstr(pdev->name, "fimc"); | |
761 | if (p && *(p + 4) == 0) | |
762 | plat_entity = IDX_FIMC; | |
ecd9acbf SN |
763 | } |
764 | ||
7b43a6f3 SN |
765 | if (plat_entity >= 0) |
766 | ret = fimc_md_register_platform_entity(data, pdev, | |
767 | plat_entity); | |
768 | put_device(dev); | |
769 | return 0; | |
d3953223 SN |
770 | } |
771 | ||
e2985a26 SN |
772 | /* Register FIMC, FIMC-LITE and CSIS media entities */ |
773 | #ifdef CONFIG_OF | |
774 | static int fimc_md_register_of_platform_entities(struct fimc_md *fmd, | |
775 | struct device_node *parent) | |
776 | { | |
777 | struct device_node *node; | |
778 | int ret = 0; | |
779 | ||
780 | for_each_available_child_of_node(parent, node) { | |
781 | struct platform_device *pdev; | |
782 | int plat_entity = -1; | |
783 | ||
784 | pdev = of_find_device_by_node(node); | |
785 | if (!pdev) | |
786 | continue; | |
787 | ||
788 | /* If driver of any entity isn't ready try all again later. */ | |
789 | if (!strcmp(node->name, CSIS_OF_NODE_NAME)) | |
790 | plat_entity = IDX_CSIS; | |
e781bbe3 SN |
791 | else if (!strcmp(node->name, FIMC_IS_OF_NODE_NAME)) |
792 | plat_entity = IDX_IS_ISP; | |
e2985a26 SN |
793 | else if (!strcmp(node->name, FIMC_LITE_OF_NODE_NAME)) |
794 | plat_entity = IDX_FLITE; | |
795 | else if (!strcmp(node->name, FIMC_OF_NODE_NAME) && | |
796 | !of_property_read_bool(node, "samsung,lcd-wb")) | |
797 | plat_entity = IDX_FIMC; | |
798 | ||
799 | if (plat_entity >= 0) | |
800 | ret = fimc_md_register_platform_entity(fmd, pdev, | |
801 | plat_entity); | |
802 | put_device(&pdev->dev); | |
803 | if (ret < 0) | |
804 | break; | |
805 | } | |
806 | ||
807 | return ret; | |
808 | } | |
809 | #else | |
810 | #define fimc_md_register_of_platform_entities(fmd, node) (-ENOSYS) | |
811 | #endif | |
812 | ||
d3953223 SN |
813 | static void fimc_md_unregister_entities(struct fimc_md *fmd) |
814 | { | |
815 | int i; | |
816 | ||
817 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
403dfbec SN |
818 | struct fimc_dev *dev = fmd->fimc[i]; |
819 | if (dev == NULL) | |
d3953223 | 820 | continue; |
403dfbec SN |
821 | v4l2_device_unregister_subdev(&dev->vid_cap.subdev); |
822 | dev->vid_cap.ve.pipe = NULL; | |
d3953223 SN |
823 | fmd->fimc[i] = NULL; |
824 | } | |
4af81310 | 825 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { |
403dfbec SN |
826 | struct fimc_lite *dev = fmd->fimc_lite[i]; |
827 | if (dev == NULL) | |
4af81310 | 828 | continue; |
403dfbec SN |
829 | v4l2_device_unregister_subdev(&dev->subdev); |
830 | dev->ve.pipe = NULL; | |
4af81310 SN |
831 | fmd->fimc_lite[i] = NULL; |
832 | } | |
d3953223 SN |
833 | for (i = 0; i < CSIS_MAX_ENTITIES; i++) { |
834 | if (fmd->csis[i].sd == NULL) | |
835 | continue; | |
836 | v4l2_device_unregister_subdev(fmd->csis[i].sd); | |
837 | fmd->csis[i].sd = NULL; | |
838 | } | |
fa91f105 SN |
839 | if (fmd->pdev->dev.of_node == NULL) { |
840 | for (i = 0; i < fmd->num_sensors; i++) { | |
841 | if (fmd->sensor[i].subdev == NULL) | |
842 | continue; | |
843 | fimc_md_unregister_sensor(fmd->sensor[i].subdev); | |
844 | fmd->sensor[i].subdev = NULL; | |
845 | } | |
d3953223 | 846 | } |
e41a35cb SN |
847 | |
848 | if (fmd->fimc_is) | |
849 | v4l2_device_unregister_subdev(&fmd->fimc_is->isp.subdev); | |
850 | ||
7b43a6f3 | 851 | v4l2_info(&fmd->v4l2_dev, "Unregistered all entities\n"); |
d3953223 SN |
852 | } |
853 | ||
d3953223 SN |
854 | /** |
855 | * __fimc_md_create_fimc_links - create links to all FIMC entities | |
856 | * @fmd: fimc media device | |
857 | * @source: the source entity to create links to all fimc entities from | |
858 | * @sensor: sensor subdev linked to FIMC[fimc_id] entity, may be null | |
859 | * @pad: the source entity pad index | |
d0da3c35 | 860 | * @link_mask: bitmask of the fimc devices for which link should be enabled |
d3953223 | 861 | */ |
4af81310 SN |
862 | static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, |
863 | struct media_entity *source, | |
864 | struct v4l2_subdev *sensor, | |
d0da3c35 | 865 | int pad, int link_mask) |
d3953223 | 866 | { |
4c8f0629 | 867 | struct fimc_source_info *si = NULL; |
d3953223 | 868 | struct media_entity *sink; |
4af81310 | 869 | unsigned int flags = 0; |
f998bb7b | 870 | int i, ret = 0; |
d3953223 | 871 | |
f998bb7b SN |
872 | if (sensor) { |
873 | si = v4l2_get_subdev_hostdata(sensor); | |
874 | /* Skip direct FIMC links in the logical FIMC-IS sensor path */ | |
4c8f0629 | 875 | if (si && si->fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) |
f998bb7b SN |
876 | ret = 1; |
877 | } | |
878 | ||
879 | for (i = 0; !ret && i < FIMC_MAX_DEVS; i++) { | |
d3953223 | 880 | if (!fmd->fimc[i]) |
4af81310 | 881 | continue; |
d3953223 SN |
882 | /* |
883 | * Some FIMC variants are not fitted with camera capture | |
884 | * interface. Skip creating a link from sensor for those. | |
885 | */ | |
4af81310 | 886 | if (!fmd->fimc[i]->variant->has_cam_if) |
d3953223 SN |
887 | continue; |
888 | ||
d0da3c35 | 889 | flags = ((1 << i) & link_mask) ? MEDIA_LNK_FL_ENABLED : 0; |
4af81310 | 890 | |
693f5c40 | 891 | sink = &fmd->fimc[i]->vid_cap.subdev.entity; |
237e0265 | 892 | ret = media_entity_create_link(source, pad, sink, |
88fa8311 | 893 | FIMC_SD_PAD_SINK_CAM, flags); |
d3953223 SN |
894 | if (ret) |
895 | return ret; | |
896 | ||
237e0265 SN |
897 | /* Notify FIMC capture subdev entity */ |
898 | ret = media_entity_call(sink, link_setup, &sink->pads[0], | |
899 | &source->pads[pad], flags); | |
900 | if (ret) | |
901 | break; | |
902 | ||
542fb082 | 903 | v4l2_info(&fmd->v4l2_dev, "created link [%s] %c> [%s]\n", |
d3953223 | 904 | source->name, flags ? '=' : '-', sink->name); |
d3953223 | 905 | } |
4af81310 SN |
906 | |
907 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { | |
908 | if (!fmd->fimc_lite[i]) | |
909 | continue; | |
910 | ||
4af81310 SN |
911 | sink = &fmd->fimc_lite[i]->subdev.entity; |
912 | ret = media_entity_create_link(source, pad, sink, | |
f998bb7b | 913 | FLITE_SD_PAD_SINK, 0); |
4af81310 SN |
914 | if (ret) |
915 | return ret; | |
916 | ||
917 | /* Notify FIMC-LITE subdev entity */ | |
918 | ret = media_entity_call(sink, link_setup, &sink->pads[0], | |
f998bb7b | 919 | &source->pads[pad], 0); |
4af81310 SN |
920 | if (ret) |
921 | break; | |
922 | ||
f998bb7b SN |
923 | v4l2_info(&fmd->v4l2_dev, "created link [%s] -> [%s]\n", |
924 | source->name, sink->name); | |
4af81310 | 925 | } |
d3953223 SN |
926 | return 0; |
927 | } | |
928 | ||
4af81310 SN |
929 | /* Create links from FIMC-LITE source pads to other entities */ |
930 | static int __fimc_md_create_flite_source_links(struct fimc_md *fmd) | |
931 | { | |
932 | struct media_entity *source, *sink; | |
a26860bd | 933 | int i, ret = 0; |
4af81310 SN |
934 | |
935 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { | |
936 | struct fimc_lite *fimc = fmd->fimc_lite[i]; | |
f998bb7b | 937 | |
4af81310 SN |
938 | if (fimc == NULL) |
939 | continue; | |
f998bb7b | 940 | |
4af81310 | 941 | source = &fimc->subdev.entity; |
bc7584b0 | 942 | sink = &fimc->ve.vdev.entity; |
4af81310 | 943 | /* FIMC-LITE's subdev and video node */ |
6319d6a0 | 944 | ret = media_entity_create_link(source, FLITE_SD_PAD_SOURCE_DMA, |
f998bb7b SN |
945 | sink, 0, 0); |
946 | if (ret) | |
947 | break; | |
948 | /* Link from FIMC-LITE to IS-ISP subdev */ | |
949 | sink = &fmd->fimc_is->isp.subdev.entity; | |
950 | ret = media_entity_create_link(source, FLITE_SD_PAD_SOURCE_ISP, | |
951 | sink, 0, 0); | |
4af81310 SN |
952 | if (ret) |
953 | break; | |
f998bb7b SN |
954 | } |
955 | ||
956 | return ret; | |
957 | } | |
958 | ||
959 | /* Create FIMC-IS links */ | |
960 | static int __fimc_md_create_fimc_is_links(struct fimc_md *fmd) | |
961 | { | |
962 | struct media_entity *source, *sink; | |
963 | int i, ret; | |
964 | ||
965 | source = &fmd->fimc_is->isp.subdev.entity; | |
966 | ||
967 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
968 | if (fmd->fimc[i] == NULL) | |
969 | continue; | |
970 | ||
971 | /* Link from IS-ISP subdev to FIMC */ | |
972 | sink = &fmd->fimc[i]->vid_cap.subdev.entity; | |
973 | ret = media_entity_create_link(source, FIMC_ISP_SD_PAD_SRC_FIFO, | |
974 | sink, FIMC_SD_PAD_SINK_FIFO, 0); | |
975 | if (ret) | |
976 | return ret; | |
4af81310 SN |
977 | } |
978 | ||
979 | return ret; | |
980 | } | |
981 | ||
d3953223 SN |
982 | /** |
983 | * fimc_md_create_links - create default links between registered entities | |
984 | * | |
985 | * Parallel interface sensor entities are connected directly to FIMC capture | |
986 | * entities. The sensors using MIPI CSIS bus are connected through immutable | |
987 | * link with CSI receiver entity specified by mux_id. Any registered CSIS | |
988 | * entity has a link to each registered FIMC capture entity. Enabled links | |
989 | * are created by default between each subsequent registered sensor and | |
990 | * subsequent FIMC capture entity. The number of default active links is | |
991 | * determined by the number of available sensors or FIMC entities, | |
992 | * whichever is less. | |
993 | */ | |
994 | static int fimc_md_create_links(struct fimc_md *fmd) | |
995 | { | |
a8697ec8 | 996 | struct v4l2_subdev *csi_sensors[CSIS_MAX_ENTITIES] = { NULL }; |
d3953223 | 997 | struct v4l2_subdev *sensor, *csis; |
56bc911a | 998 | struct fimc_source_info *pdata; |
237e0265 | 999 | struct media_entity *source, *sink; |
d0da3c35 SN |
1000 | int i, pad, fimc_id = 0, ret = 0; |
1001 | u32 flags, link_mask = 0; | |
d3953223 SN |
1002 | |
1003 | for (i = 0; i < fmd->num_sensors; i++) { | |
1004 | if (fmd->sensor[i].subdev == NULL) | |
1005 | continue; | |
1006 | ||
1007 | sensor = fmd->sensor[i].subdev; | |
4c8f0629 SN |
1008 | pdata = v4l2_get_subdev_hostdata(sensor); |
1009 | if (!pdata) | |
d3953223 SN |
1010 | continue; |
1011 | ||
1012 | source = NULL; | |
d3953223 | 1013 | |
56bc911a SN |
1014 | switch (pdata->sensor_bus_type) { |
1015 | case FIMC_BUS_TYPE_MIPI_CSI2: | |
d3953223 SN |
1016 | if (WARN(pdata->mux_id >= CSIS_MAX_ENTITIES, |
1017 | "Wrong CSI channel id: %d\n", pdata->mux_id)) | |
1018 | return -EINVAL; | |
1019 | ||
1020 | csis = fmd->csis[pdata->mux_id].sd; | |
1021 | if (WARN(csis == NULL, | |
1022 | "MIPI-CSI interface specified " | |
1023 | "but s5p-csis module is not loaded!\n")) | |
d12392ec | 1024 | return -EINVAL; |
d3953223 | 1025 | |
1c9f5bd7 AH |
1026 | pad = sensor->entity.num_pads - 1; |
1027 | ret = media_entity_create_link(&sensor->entity, pad, | |
d3953223 SN |
1028 | &csis->entity, CSIS_PAD_SINK, |
1029 | MEDIA_LNK_FL_IMMUTABLE | | |
1030 | MEDIA_LNK_FL_ENABLED); | |
1031 | if (ret) | |
1032 | return ret; | |
1033 | ||
969e877c | 1034 | v4l2_info(&fmd->v4l2_dev, "created link [%s] => [%s]\n", |
d3953223 SN |
1035 | sensor->entity.name, csis->entity.name); |
1036 | ||
4af81310 | 1037 | source = NULL; |
5d33ee92 | 1038 | csi_sensors[pdata->mux_id] = sensor; |
d3953223 SN |
1039 | break; |
1040 | ||
56bc911a | 1041 | case FIMC_BUS_TYPE_ITU_601...FIMC_BUS_TYPE_ITU_656: |
d3953223 SN |
1042 | source = &sensor->entity; |
1043 | pad = 0; | |
1044 | break; | |
1045 | ||
1046 | default: | |
1047 | v4l2_err(&fmd->v4l2_dev, "Wrong bus_type: %x\n", | |
56bc911a | 1048 | pdata->sensor_bus_type); |
d3953223 SN |
1049 | return -EINVAL; |
1050 | } | |
1051 | if (source == NULL) | |
1052 | continue; | |
1053 | ||
d0da3c35 | 1054 | link_mask = 1 << fimc_id++; |
4af81310 | 1055 | ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor, |
d0da3c35 | 1056 | pad, link_mask); |
4af81310 SN |
1057 | } |
1058 | ||
a8697ec8 | 1059 | for (i = 0; i < CSIS_MAX_ENTITIES; i++) { |
4af81310 SN |
1060 | if (fmd->csis[i].sd == NULL) |
1061 | continue; | |
f998bb7b | 1062 | |
4af81310 SN |
1063 | source = &fmd->csis[i].sd->entity; |
1064 | pad = CSIS_PAD_SOURCE; | |
5d33ee92 | 1065 | sensor = csi_sensors[i]; |
4af81310 | 1066 | |
d0da3c35 | 1067 | link_mask = 1 << fimc_id++; |
5d33ee92 | 1068 | ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor, |
d0da3c35 | 1069 | pad, link_mask); |
d3953223 | 1070 | } |
4af81310 | 1071 | |
237e0265 SN |
1072 | /* Create immutable links between each FIMC's subdev and video node */ |
1073 | flags = MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED; | |
1074 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
1075 | if (!fmd->fimc[i]) | |
1076 | continue; | |
f998bb7b | 1077 | |
693f5c40 | 1078 | source = &fmd->fimc[i]->vid_cap.subdev.entity; |
bc7584b0 | 1079 | sink = &fmd->fimc[i]->vid_cap.ve.vdev.entity; |
f998bb7b | 1080 | |
237e0265 SN |
1081 | ret = media_entity_create_link(source, FIMC_SD_PAD_SOURCE, |
1082 | sink, 0, flags); | |
1083 | if (ret) | |
1084 | break; | |
1085 | } | |
1086 | ||
f998bb7b SN |
1087 | ret = __fimc_md_create_flite_source_links(fmd); |
1088 | if (ret < 0) | |
1089 | return ret; | |
1090 | ||
1091 | if (fmd->use_isp) | |
1092 | ret = __fimc_md_create_fimc_is_links(fmd); | |
1093 | ||
1094 | return ret; | |
d3953223 SN |
1095 | } |
1096 | ||
1097 | /* | |
056f4f30 | 1098 | * The peripheral sensor and CAM_BLK (PIXELASYNCMx) clocks management. |
d3953223 | 1099 | */ |
0e23cbbe SN |
1100 | static void fimc_md_put_clocks(struct fimc_md *fmd) |
1101 | { | |
1102 | int i = FIMC_MAX_CAMCLKS; | |
1103 | ||
1104 | while (--i >= 0) { | |
1105 | if (IS_ERR(fmd->camclk[i].clock)) | |
1106 | continue; | |
0e23cbbe SN |
1107 | clk_put(fmd->camclk[i].clock); |
1108 | fmd->camclk[i].clock = ERR_PTR(-EINVAL); | |
1109 | } | |
056f4f30 SN |
1110 | |
1111 | /* Writeback (PIXELASYNCMx) clocks */ | |
1112 | for (i = 0; i < FIMC_MAX_WBCLKS; i++) { | |
1113 | if (IS_ERR(fmd->wbclk[i])) | |
1114 | continue; | |
1115 | clk_put(fmd->wbclk[i]); | |
1116 | fmd->wbclk[i] = ERR_PTR(-EINVAL); | |
1117 | } | |
0e23cbbe SN |
1118 | } |
1119 | ||
d3953223 SN |
1120 | static int fimc_md_get_clocks(struct fimc_md *fmd) |
1121 | { | |
0e23cbbe | 1122 | struct device *dev = NULL; |
d3953223 SN |
1123 | char clk_name[32]; |
1124 | struct clk *clock; | |
044c372a | 1125 | int i, ret = 0; |
0e23cbbe SN |
1126 | |
1127 | for (i = 0; i < FIMC_MAX_CAMCLKS; i++) | |
1128 | fmd->camclk[i].clock = ERR_PTR(-EINVAL); | |
1129 | ||
1130 | if (fmd->pdev->dev.of_node) | |
1131 | dev = &fmd->pdev->dev; | |
d3953223 SN |
1132 | |
1133 | for (i = 0; i < FIMC_MAX_CAMCLKS; i++) { | |
1134 | snprintf(clk_name, sizeof(clk_name), "sclk_cam%u", i); | |
0e23cbbe SN |
1135 | clock = clk_get(dev, clk_name); |
1136 | ||
dc3ae328 | 1137 | if (IS_ERR(clock)) { |
0e23cbbe SN |
1138 | dev_err(&fmd->pdev->dev, "Failed to get clock: %s\n", |
1139 | clk_name); | |
1140 | ret = PTR_ERR(clock); | |
1141 | break; | |
1142 | } | |
d3953223 SN |
1143 | fmd->camclk[i].clock = clock; |
1144 | } | |
0e23cbbe SN |
1145 | if (ret) |
1146 | fimc_md_put_clocks(fmd); | |
d3953223 | 1147 | |
056f4f30 SN |
1148 | if (!fmd->use_isp) |
1149 | return 0; | |
1150 | /* | |
1151 | * For now get only PIXELASYNCM1 clock (Writeback B/ISP), | |
1152 | * leave PIXELASYNCM0 out for the LCD Writeback driver. | |
1153 | */ | |
1154 | fmd->wbclk[CLK_IDX_WB_A] = ERR_PTR(-EINVAL); | |
1155 | ||
1156 | for (i = CLK_IDX_WB_B; i < FIMC_MAX_WBCLKS; i++) { | |
1157 | snprintf(clk_name, sizeof(clk_name), "pxl_async%u", i); | |
1158 | clock = clk_get(dev, clk_name); | |
1159 | if (IS_ERR(clock)) { | |
1160 | v4l2_err(&fmd->v4l2_dev, "Failed to get clock: %s\n", | |
1161 | clk_name); | |
1162 | ret = PTR_ERR(clock); | |
1163 | break; | |
1164 | } | |
1165 | fmd->wbclk[i] = clock; | |
1166 | } | |
1167 | if (ret) | |
1168 | fimc_md_put_clocks(fmd); | |
1169 | ||
0e23cbbe | 1170 | return ret; |
d3953223 SN |
1171 | } |
1172 | ||
1173 | static int __fimc_md_set_camclk(struct fimc_md *fmd, | |
4c8f0629 | 1174 | struct fimc_source_info *si, |
e3fc82e8 | 1175 | bool on) |
d3953223 | 1176 | { |
d3953223 SN |
1177 | struct fimc_camclk_info *camclk; |
1178 | int ret = 0; | |
1179 | ||
fa91f105 SN |
1180 | /* |
1181 | * When device tree is used the sensor drivers are supposed to | |
1182 | * control the clock themselves. This whole function will be | |
1183 | * removed once S5PV210 platform is converted to the device tree. | |
1184 | */ | |
1185 | if (fmd->pdev->dev.of_node) | |
1186 | return 0; | |
1187 | ||
4c8f0629 | 1188 | if (WARN_ON(si->clk_id >= FIMC_MAX_CAMCLKS) || !fmd || !fmd->pmf) |
d3953223 SN |
1189 | return -EINVAL; |
1190 | ||
4c8f0629 | 1191 | camclk = &fmd->camclk[si->clk_id]; |
d3953223 | 1192 | |
e3fc82e8 | 1193 | dbg("camclk %d, f: %lu, use_count: %d, on: %d", |
4c8f0629 | 1194 | si->clk_id, si->clk_frequency, camclk->use_count, on); |
d3953223 SN |
1195 | |
1196 | if (on) { | |
1197 | if (camclk->use_count > 0 && | |
4c8f0629 | 1198 | camclk->frequency != si->clk_frequency) |
d3953223 SN |
1199 | return -EINVAL; |
1200 | ||
1201 | if (camclk->use_count++ == 0) { | |
4c8f0629 SN |
1202 | clk_set_rate(camclk->clock, si->clk_frequency); |
1203 | camclk->frequency = si->clk_frequency; | |
3e20c345 SN |
1204 | ret = pm_runtime_get_sync(fmd->pmf); |
1205 | if (ret < 0) | |
1206 | return ret; | |
044c372a | 1207 | ret = clk_prepare_enable(camclk->clock); |
4c8f0629 | 1208 | dbg("Enabled camclk %d: f: %lu", si->clk_id, |
e3fc82e8 | 1209 | clk_get_rate(camclk->clock)); |
d3953223 | 1210 | } |
d3953223 SN |
1211 | return ret; |
1212 | } | |
1213 | ||
1214 | if (WARN_ON(camclk->use_count == 0)) | |
1215 | return 0; | |
1216 | ||
1217 | if (--camclk->use_count == 0) { | |
044c372a | 1218 | clk_disable_unprepare(camclk->clock); |
3e20c345 | 1219 | pm_runtime_put(fmd->pmf); |
4c8f0629 | 1220 | dbg("Disabled camclk %d", si->clk_id); |
d3953223 SN |
1221 | } |
1222 | return ret; | |
1223 | } | |
1224 | ||
1225 | /** | |
1226 | * fimc_md_set_camclk - peripheral sensor clock setup | |
1227 | * @sd: sensor subdev to configure sclk_cam clock for | |
1228 | * @on: 1 to enable or 0 to disable the clock | |
1229 | * | |
1230 | * There are 2 separate clock outputs available in the SoC for external | |
1231 | * image processors. These clocks are shared between all registered FIMC | |
1232 | * devices to which sensors can be attached, either directly or through | |
1233 | * the MIPI CSI receiver. The clock is allowed here to be used by | |
1234 | * multiple sensors concurrently if they use same frequency. | |
d3953223 SN |
1235 | * This function should only be called when the graph mutex is held. |
1236 | */ | |
1237 | int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on) | |
1238 | { | |
4c8f0629 | 1239 | struct fimc_source_info *si = v4l2_get_subdev_hostdata(sd); |
d3953223 SN |
1240 | struct fimc_md *fmd = entity_to_fimc_mdev(&sd->entity); |
1241 | ||
d3f5e0c5 SN |
1242 | /* |
1243 | * If there is a clock provider registered the sensors will | |
1244 | * handle their clock themselves, no need to control it on | |
1245 | * the host interface side. | |
1246 | */ | |
1247 | if (fmd->clk_provider.num_clocks > 0) | |
1248 | return 0; | |
1249 | ||
4c8f0629 | 1250 | return __fimc_md_set_camclk(fmd, si, on); |
d3953223 SN |
1251 | } |
1252 | ||
d3775fa7 | 1253 | static int __fimc_md_modify_pipeline(struct media_entity *entity, bool enable) |
d3953223 | 1254 | { |
403dfbec | 1255 | struct exynos_video_entity *ve; |
d3775fa7 | 1256 | struct fimc_pipeline *p; |
403dfbec | 1257 | struct video_device *vdev; |
d3775fa7 | 1258 | int ret; |
d3953223 | 1259 | |
d3775fa7 SN |
1260 | vdev = media_entity_to_video_device(entity); |
1261 | if (vdev->entity.use_count == 0) | |
d3953223 SN |
1262 | return 0; |
1263 | ||
403dfbec | 1264 | ve = vdev_to_exynos_video_entity(vdev); |
d3775fa7 SN |
1265 | p = to_fimc_pipeline(ve->pipe); |
1266 | /* | |
1267 | * Nothing to do if we are disabling the pipeline, some link | |
1268 | * has been disconnected and p->subdevs array is cleared now. | |
1269 | */ | |
1270 | if (!enable && p->subdevs[IDX_SENSOR] == NULL) | |
1271 | return 0; | |
403dfbec | 1272 | |
d3775fa7 SN |
1273 | if (enable) |
1274 | ret = __fimc_pipeline_open(ve->pipe, entity, true); | |
1275 | else | |
1276 | ret = __fimc_pipeline_close(ve->pipe); | |
131b6c61 | 1277 | |
d3775fa7 SN |
1278 | if (ret == 0 && !enable) |
1279 | memset(p->subdevs, 0, sizeof(p->subdevs)); | |
1280 | ||
1281 | return ret; | |
1282 | } | |
1283 | ||
1284 | /* Locking: called with entity->parent->graph_mutex mutex held. */ | |
1285 | static int __fimc_md_modify_pipelines(struct media_entity *entity, bool enable) | |
1286 | { | |
1287 | struct media_entity *entity_err = entity; | |
1288 | struct media_entity_graph graph; | |
1289 | int ret; | |
1290 | ||
1291 | /* | |
1292 | * Walk current graph and call the pipeline open/close routine for each | |
1293 | * opened video node that belongs to the graph of entities connected | |
1294 | * through active links. This is needed as we cannot power on/off the | |
1295 | * subdevs in random order. | |
1296 | */ | |
1297 | media_entity_graph_walk_start(&graph, entity); | |
1298 | ||
1299 | while ((entity = media_entity_graph_walk_next(&graph))) { | |
1300 | if (media_entity_type(entity) != MEDIA_ENT_T_DEVNODE) | |
1301 | continue; | |
1302 | ||
1303 | ret = __fimc_md_modify_pipeline(entity, enable); | |
1304 | ||
1305 | if (ret < 0) | |
1306 | goto err; | |
1307 | } | |
1308 | ||
1309 | return 0; | |
1310 | err: | |
1311 | media_entity_graph_walk_start(&graph, entity_err); | |
1312 | ||
1313 | while ((entity_err = media_entity_graph_walk_next(&graph))) { | |
1314 | if (media_entity_type(entity_err) != MEDIA_ENT_T_DEVNODE) | |
1315 | continue; | |
1316 | ||
1317 | __fimc_md_modify_pipeline(entity_err, !enable); | |
1318 | ||
1319 | if (entity_err == entity) | |
1320 | break; | |
1321 | } | |
1322 | ||
1323 | return ret; | |
1324 | } | |
1325 | ||
1326 | static int fimc_md_link_notify(struct media_link *link, unsigned int flags, | |
1327 | unsigned int notification) | |
1328 | { | |
1329 | struct media_entity *sink = link->sink->entity; | |
1330 | int ret = 0; | |
1331 | ||
1332 | /* Before link disconnection */ | |
1333 | if (notification == MEDIA_DEV_NOTIFY_PRE_LINK_CH) { | |
1334 | if (!(flags & MEDIA_LNK_FL_ENABLED)) | |
1335 | ret = __fimc_md_modify_pipelines(sink, false); | |
1336 | else | |
1337 | ; /* TODO: Link state change validation */ | |
1338 | /* After link activation */ | |
1339 | } else if (notification == MEDIA_DEV_NOTIFY_POST_LINK_CH && | |
1340 | (link->flags & MEDIA_LNK_FL_ENABLED)) { | |
1341 | ret = __fimc_md_modify_pipelines(sink, true); | |
d3953223 | 1342 | } |
740ad921 | 1343 | |
d3775fa7 | 1344 | return ret ? -EPIPE : 0; |
d3953223 SN |
1345 | } |
1346 | ||
1347 | static ssize_t fimc_md_sysfs_show(struct device *dev, | |
1348 | struct device_attribute *attr, char *buf) | |
1349 | { | |
1350 | struct platform_device *pdev = to_platform_device(dev); | |
1351 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1352 | ||
1353 | if (fmd->user_subdev_api) | |
1354 | return strlcpy(buf, "Sub-device API (sub-dev)\n", PAGE_SIZE); | |
1355 | ||
1356 | return strlcpy(buf, "V4L2 video node only API (vid-dev)\n", PAGE_SIZE); | |
1357 | } | |
1358 | ||
1359 | static ssize_t fimc_md_sysfs_store(struct device *dev, | |
1360 | struct device_attribute *attr, | |
1361 | const char *buf, size_t count) | |
1362 | { | |
1363 | struct platform_device *pdev = to_platform_device(dev); | |
1364 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1365 | bool subdev_api; | |
1366 | int i; | |
1367 | ||
1368 | if (!strcmp(buf, "vid-dev\n")) | |
1369 | subdev_api = false; | |
1370 | else if (!strcmp(buf, "sub-dev\n")) | |
1371 | subdev_api = true; | |
1372 | else | |
1373 | return count; | |
1374 | ||
1375 | fmd->user_subdev_api = subdev_api; | |
1376 | for (i = 0; i < FIMC_MAX_DEVS; i++) | |
1377 | if (fmd->fimc[i]) | |
1378 | fmd->fimc[i]->vid_cap.user_subdev_api = subdev_api; | |
1379 | return count; | |
1380 | } | |
1381 | /* | |
1382 | * This device attribute is to select video pipeline configuration method. | |
1383 | * There are following valid values: | |
1384 | * vid-dev - for V4L2 video node API only, subdevice will be configured | |
1385 | * by the host driver. | |
1386 | * sub-dev - for media controller API, subdevs must be configured in user | |
1387 | * space before starting streaming. | |
1388 | */ | |
1389 | static DEVICE_ATTR(subdev_conf_mode, S_IWUSR | S_IRUGO, | |
1390 | fimc_md_sysfs_show, fimc_md_sysfs_store); | |
1391 | ||
4163851f SN |
1392 | static int fimc_md_get_pinctrl(struct fimc_md *fmd) |
1393 | { | |
1394 | struct device *dev = &fmd->pdev->dev; | |
1395 | struct fimc_pinctrl *pctl = &fmd->pinctl; | |
1396 | ||
1397 | pctl->pinctrl = devm_pinctrl_get(dev); | |
1398 | if (IS_ERR(pctl->pinctrl)) | |
1399 | return PTR_ERR(pctl->pinctrl); | |
1400 | ||
1401 | pctl->state_default = pinctrl_lookup_state(pctl->pinctrl, | |
1402 | PINCTRL_STATE_DEFAULT); | |
1403 | if (IS_ERR(pctl->state_default)) | |
1404 | return PTR_ERR(pctl->state_default); | |
1405 | ||
1406 | pctl->state_idle = pinctrl_lookup_state(pctl->pinctrl, | |
1407 | PINCTRL_STATE_IDLE); | |
1408 | return 0; | |
1409 | } | |
1410 | ||
d3f5e0c5 SN |
1411 | #ifdef CONFIG_OF |
1412 | static int cam_clk_prepare(struct clk_hw *hw) | |
1413 | { | |
1414 | struct cam_clk *camclk = to_cam_clk(hw); | |
1415 | int ret; | |
1416 | ||
1417 | if (camclk->fmd->pmf == NULL) | |
1418 | return -ENODEV; | |
1419 | ||
1420 | ret = pm_runtime_get_sync(camclk->fmd->pmf); | |
1421 | return ret < 0 ? ret : 0; | |
1422 | } | |
1423 | ||
1424 | static void cam_clk_unprepare(struct clk_hw *hw) | |
1425 | { | |
1426 | struct cam_clk *camclk = to_cam_clk(hw); | |
1427 | ||
1428 | if (camclk->fmd->pmf == NULL) | |
1429 | return; | |
1430 | ||
1431 | pm_runtime_put_sync(camclk->fmd->pmf); | |
1432 | } | |
1433 | ||
1434 | static const struct clk_ops cam_clk_ops = { | |
1435 | .prepare = cam_clk_prepare, | |
1436 | .unprepare = cam_clk_unprepare, | |
1437 | }; | |
1438 | ||
1439 | static void fimc_md_unregister_clk_provider(struct fimc_md *fmd) | |
1440 | { | |
1441 | struct cam_clk_provider *cp = &fmd->clk_provider; | |
1442 | unsigned int i; | |
1443 | ||
1444 | if (cp->of_node) | |
1445 | of_clk_del_provider(cp->of_node); | |
1446 | ||
1447 | for (i = 0; i < cp->num_clocks; i++) | |
1448 | clk_unregister(cp->clks[i]); | |
1449 | } | |
1450 | ||
1451 | static int fimc_md_register_clk_provider(struct fimc_md *fmd) | |
1452 | { | |
1453 | struct cam_clk_provider *cp = &fmd->clk_provider; | |
1454 | struct device *dev = &fmd->pdev->dev; | |
1455 | int i, ret; | |
1456 | ||
1457 | for (i = 0; i < FIMC_MAX_CAMCLKS; i++) { | |
1458 | struct cam_clk *camclk = &cp->camclk[i]; | |
1459 | struct clk_init_data init; | |
1460 | const char *p_name; | |
1461 | ||
1462 | ret = of_property_read_string_index(dev->of_node, | |
1463 | "clock-output-names", i, &init.name); | |
1464 | if (ret < 0) | |
1465 | break; | |
1466 | ||
1467 | p_name = __clk_get_name(fmd->camclk[i].clock); | |
1468 | ||
1469 | /* It's safe since clk_register() will duplicate the string. */ | |
1470 | init.parent_names = &p_name; | |
1471 | init.num_parents = 1; | |
1472 | init.ops = &cam_clk_ops; | |
1473 | init.flags = CLK_SET_RATE_PARENT; | |
1474 | camclk->hw.init = &init; | |
1475 | camclk->fmd = fmd; | |
1476 | ||
1477 | cp->clks[i] = clk_register(NULL, &camclk->hw); | |
1478 | if (IS_ERR(cp->clks[i])) { | |
1479 | dev_err(dev, "failed to register clock: %s (%ld)\n", | |
1480 | init.name, PTR_ERR(cp->clks[i])); | |
1481 | ret = PTR_ERR(cp->clks[i]); | |
1482 | goto err; | |
1483 | } | |
1484 | cp->num_clocks++; | |
1485 | } | |
1486 | ||
1487 | if (cp->num_clocks == 0) { | |
1488 | dev_warn(dev, "clk provider not registered\n"); | |
1489 | return 0; | |
1490 | } | |
1491 | ||
1492 | cp->clk_data.clks = cp->clks; | |
1493 | cp->clk_data.clk_num = cp->num_clocks; | |
1494 | cp->of_node = dev->of_node; | |
1495 | ret = of_clk_add_provider(dev->of_node, of_clk_src_onecell_get, | |
1496 | &cp->clk_data); | |
1497 | if (ret == 0) | |
1498 | return 0; | |
1499 | err: | |
1500 | fimc_md_unregister_clk_provider(fmd); | |
1501 | return ret; | |
1502 | } | |
1503 | #else | |
1504 | #define fimc_md_register_clk_provider(fmd) (0) | |
1505 | #define fimc_md_unregister_clk_provider(fmd) (0) | |
1506 | #endif | |
1507 | ||
fa91f105 SN |
1508 | static int subdev_notifier_bound(struct v4l2_async_notifier *notifier, |
1509 | struct v4l2_subdev *subdev, | |
1510 | struct v4l2_async_subdev *asd) | |
1511 | { | |
1512 | struct fimc_md *fmd = notifier_to_fimc_md(notifier); | |
1513 | struct fimc_sensor_info *si = NULL; | |
1514 | int i; | |
1515 | ||
1516 | /* Find platform data for this sensor subdev */ | |
1517 | for (i = 0; i < ARRAY_SIZE(fmd->sensor); i++) | |
1518 | if (fmd->sensor[i].asd.match.of.node == subdev->dev->of_node) | |
1519 | si = &fmd->sensor[i]; | |
1520 | ||
1521 | if (si == NULL) | |
1522 | return -EINVAL; | |
1523 | ||
1524 | v4l2_set_subdev_hostdata(subdev, &si->pdata); | |
1525 | ||
1526 | if (si->pdata.fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) | |
1527 | subdev->grp_id = GRP_ID_FIMC_IS_SENSOR; | |
1528 | else | |
1529 | subdev->grp_id = GRP_ID_SENSOR; | |
1530 | ||
1531 | si->subdev = subdev; | |
1532 | ||
1533 | v4l2_info(&fmd->v4l2_dev, "Registered sensor subdevice: %s (%d)\n", | |
1534 | subdev->name, fmd->num_sensors); | |
1535 | ||
1536 | fmd->num_sensors++; | |
1537 | ||
1538 | return 0; | |
1539 | } | |
1540 | ||
1541 | static int subdev_notifier_complete(struct v4l2_async_notifier *notifier) | |
1542 | { | |
1543 | struct fimc_md *fmd = notifier_to_fimc_md(notifier); | |
1544 | int ret; | |
1545 | ||
1546 | mutex_lock(&fmd->media_dev.graph_mutex); | |
1547 | ||
1548 | ret = fimc_md_create_links(fmd); | |
1549 | if (ret < 0) | |
1550 | goto unlock; | |
1551 | ||
1552 | ret = v4l2_device_register_subdev_nodes(&fmd->v4l2_dev); | |
1553 | unlock: | |
1554 | mutex_unlock(&fmd->media_dev.graph_mutex); | |
1555 | return ret; | |
1556 | } | |
1557 | ||
ecd9acbf | 1558 | static int fimc_md_probe(struct platform_device *pdev) |
d3953223 | 1559 | { |
e2985a26 | 1560 | struct device *dev = &pdev->dev; |
d3953223 SN |
1561 | struct v4l2_device *v4l2_dev; |
1562 | struct fimc_md *fmd; | |
1563 | int ret; | |
1564 | ||
e2985a26 | 1565 | fmd = devm_kzalloc(dev, sizeof(*fmd), GFP_KERNEL); |
d3953223 SN |
1566 | if (!fmd) |
1567 | return -ENOMEM; | |
1568 | ||
1569 | spin_lock_init(&fmd->slock); | |
1570 | fmd->pdev = pdev; | |
403dfbec | 1571 | INIT_LIST_HEAD(&fmd->pipelines); |
d3953223 SN |
1572 | |
1573 | strlcpy(fmd->media_dev.model, "SAMSUNG S5P FIMC", | |
1574 | sizeof(fmd->media_dev.model)); | |
1575 | fmd->media_dev.link_notify = fimc_md_link_notify; | |
e2985a26 | 1576 | fmd->media_dev.dev = dev; |
d3953223 SN |
1577 | |
1578 | v4l2_dev = &fmd->v4l2_dev; | |
1579 | v4l2_dev->mdev = &fmd->media_dev; | |
e1d72f4d | 1580 | v4l2_dev->notify = fimc_sensor_notify; |
e2985a26 | 1581 | strlcpy(v4l2_dev->name, "s5p-fimc-md", sizeof(v4l2_dev->name)); |
d3953223 | 1582 | |
e781bbe3 SN |
1583 | fmd->use_isp = fimc_md_is_isp_available(dev->of_node); |
1584 | ||
e2985a26 | 1585 | ret = v4l2_device_register(dev, &fmd->v4l2_dev); |
d3953223 SN |
1586 | if (ret < 0) { |
1587 | v4l2_err(v4l2_dev, "Failed to register v4l2_device: %d\n", ret); | |
6d91a51a | 1588 | return ret; |
d3953223 | 1589 | } |
d3f5e0c5 | 1590 | |
d3953223 SN |
1591 | ret = media_device_register(&fmd->media_dev); |
1592 | if (ret < 0) { | |
1593 | v4l2_err(v4l2_dev, "Failed to register media device: %d\n", ret); | |
fa91f105 | 1594 | goto err_v4l2_dev; |
d3953223 | 1595 | } |
d3f5e0c5 | 1596 | |
d3953223 SN |
1597 | ret = fimc_md_get_clocks(fmd); |
1598 | if (ret) | |
fa91f105 | 1599 | goto err_md; |
d3953223 | 1600 | |
e2985a26 | 1601 | fmd->user_subdev_api = (dev->of_node != NULL); |
693f5c40 | 1602 | |
4163851f SN |
1603 | ret = fimc_md_get_pinctrl(fmd); |
1604 | if (ret < 0) { | |
1605 | if (ret != EPROBE_DEFER) | |
1606 | dev_err(dev, "Failed to get pinctrl: %d\n", ret); | |
fa91f105 | 1607 | goto err_clk; |
4163851f SN |
1608 | } |
1609 | ||
fa91f105 SN |
1610 | platform_set_drvdata(pdev, fmd); |
1611 | ||
1612 | /* Protect the media graph while we're registering entities */ | |
1613 | mutex_lock(&fmd->media_dev.graph_mutex); | |
1614 | ||
e2985a26 SN |
1615 | if (dev->of_node) |
1616 | ret = fimc_md_register_of_platform_entities(fmd, dev->of_node); | |
1617 | else | |
1618 | ret = bus_for_each_dev(&platform_bus_type, NULL, fmd, | |
1619 | fimc_md_pdev_match); | |
fa91f105 SN |
1620 | if (ret) { |
1621 | mutex_unlock(&fmd->media_dev.graph_mutex); | |
1622 | goto err_clk; | |
1623 | } | |
d3953223 | 1624 | |
2b13f7d4 | 1625 | if (dev->platform_data || dev->of_node) { |
5cbf6f16 | 1626 | ret = fimc_md_register_sensor_entities(fmd); |
fa91f105 SN |
1627 | if (ret) { |
1628 | mutex_unlock(&fmd->media_dev.graph_mutex); | |
1629 | goto err_m_ent; | |
1630 | } | |
5cbf6f16 | 1631 | } |
e2985a26 | 1632 | |
fa91f105 | 1633 | mutex_unlock(&fmd->media_dev.graph_mutex); |
d3953223 SN |
1634 | |
1635 | ret = device_create_file(&pdev->dev, &dev_attr_subdev_conf_mode); | |
693f5c40 | 1636 | if (ret) |
fa91f105 SN |
1637 | goto err_m_ent; |
1638 | /* | |
1639 | * FIMC platform devices need to be registered before the sclk_cam | |
1640 | * clocks provider, as one of these devices needs to be activated | |
1641 | * to enable the clock. | |
1642 | */ | |
1643 | ret = fimc_md_register_clk_provider(fmd); | |
1644 | if (ret < 0) { | |
1645 | v4l2_err(v4l2_dev, "clock provider registration failed\n"); | |
1646 | goto err_attr; | |
1647 | } | |
1648 | ||
1649 | if (fmd->num_sensors > 0) { | |
1650 | fmd->subdev_notifier.subdevs = fmd->async_subdevs; | |
1651 | fmd->subdev_notifier.num_subdevs = fmd->num_sensors; | |
1652 | fmd->subdev_notifier.bound = subdev_notifier_bound; | |
1653 | fmd->subdev_notifier.complete = subdev_notifier_complete; | |
1654 | fmd->num_sensors = 0; | |
1655 | ||
1656 | ret = v4l2_async_notifier_register(&fmd->v4l2_dev, | |
1657 | &fmd->subdev_notifier); | |
1658 | if (ret) | |
1659 | goto err_clk_p; | |
1660 | } | |
693f5c40 | 1661 | |
693f5c40 SN |
1662 | return 0; |
1663 | ||
fa91f105 SN |
1664 | err_clk_p: |
1665 | fimc_md_unregister_clk_provider(fmd); | |
1666 | err_attr: | |
1667 | device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode); | |
693f5c40 | 1668 | err_clk: |
d3953223 | 1669 | fimc_md_put_clocks(fmd); |
fa91f105 | 1670 | err_m_ent: |
d3953223 | 1671 | fimc_md_unregister_entities(fmd); |
693f5c40 | 1672 | err_md: |
fa91f105 SN |
1673 | media_device_unregister(&fmd->media_dev); |
1674 | err_v4l2_dev: | |
d3953223 | 1675 | v4l2_device_unregister(&fmd->v4l2_dev); |
d3953223 SN |
1676 | return ret; |
1677 | } | |
1678 | ||
4c62e976 | 1679 | static int fimc_md_remove(struct platform_device *pdev) |
d3953223 SN |
1680 | { |
1681 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1682 | ||
1683 | if (!fmd) | |
1684 | return 0; | |
b74bee15 | 1685 | |
d3f5e0c5 | 1686 | fimc_md_unregister_clk_provider(fmd); |
fa91f105 SN |
1687 | v4l2_async_notifier_unregister(&fmd->subdev_notifier); |
1688 | ||
b74bee15 | 1689 | v4l2_device_unregister(&fmd->v4l2_dev); |
d3953223 SN |
1690 | device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode); |
1691 | fimc_md_unregister_entities(fmd); | |
403dfbec | 1692 | fimc_md_pipelines_free(fmd); |
d3953223 SN |
1693 | media_device_unregister(&fmd->media_dev); |
1694 | fimc_md_put_clocks(fmd); | |
fa91f105 | 1695 | |
d3953223 SN |
1696 | return 0; |
1697 | } | |
1698 | ||
e2985a26 SN |
1699 | static struct platform_device_id fimc_driver_ids[] __always_unused = { |
1700 | { .name = "s5p-fimc-md" }, | |
1701 | { }, | |
1702 | }; | |
1703 | MODULE_DEVICE_TABLE(platform, fimc_driver_ids); | |
1704 | ||
1705 | static const struct of_device_id fimc_md_of_match[] = { | |
1706 | { .compatible = "samsung,fimc" }, | |
1707 | { }, | |
1708 | }; | |
1709 | MODULE_DEVICE_TABLE(of, fimc_md_of_match); | |
1710 | ||
d3953223 SN |
1711 | static struct platform_driver fimc_md_driver = { |
1712 | .probe = fimc_md_probe, | |
4c62e976 | 1713 | .remove = fimc_md_remove, |
d3953223 | 1714 | .driver = { |
e2985a26 SN |
1715 | .of_match_table = of_match_ptr(fimc_md_of_match), |
1716 | .name = "s5p-fimc-md", | |
1717 | .owner = THIS_MODULE, | |
d3953223 SN |
1718 | } |
1719 | }; | |
1720 | ||
7e566be2 | 1721 | static int __init fimc_md_init(void) |
d3953223 SN |
1722 | { |
1723 | int ret; | |
ecd9acbf | 1724 | |
d3953223 SN |
1725 | request_module("s5p-csis"); |
1726 | ret = fimc_register_driver(); | |
1727 | if (ret) | |
1728 | return ret; | |
ecd9acbf | 1729 | |
d3953223 SN |
1730 | return platform_driver_register(&fimc_md_driver); |
1731 | } | |
7e566be2 SK |
1732 | |
1733 | static void __exit fimc_md_exit(void) | |
d3953223 SN |
1734 | { |
1735 | platform_driver_unregister(&fimc_md_driver); | |
1736 | fimc_unregister_driver(); | |
1737 | } | |
1738 | ||
1739 | module_init(fimc_md_init); | |
1740 | module_exit(fimc_md_exit); | |
1741 | ||
1742 | MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); | |
1743 | MODULE_DESCRIPTION("S5P FIMC camera host interface/video postprocessor driver"); | |
1744 | MODULE_LICENSE("GPL"); | |
1745 | MODULE_VERSION("2.0.1"); |