Commit | Line | Data |
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d3953223 SN |
1 | /* |
2 | * S5P/EXYNOS4 SoC series camera host interface media device driver | |
3 | * | |
7b43a6f3 SN |
4 | * Copyright (C) 2011 - 2012 Samsung Electronics Co., Ltd. |
5 | * Sylwester Nawrocki <s.nawrocki@samsung.com> | |
d3953223 SN |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published | |
9 | * by the Free Software Foundation, either version 2 of the License, | |
10 | * or (at your option) any later version. | |
11 | */ | |
12 | ||
13 | #include <linux/bug.h> | |
14 | #include <linux/device.h> | |
15 | #include <linux/errno.h> | |
16 | #include <linux/i2c.h> | |
17 | #include <linux/kernel.h> | |
18 | #include <linux/list.h> | |
19 | #include <linux/module.h> | |
e2985a26 SN |
20 | #include <linux/of.h> |
21 | #include <linux/of_platform.h> | |
22 | #include <linux/of_device.h> | |
23 | #include <linux/of_i2c.h> | |
d3953223 SN |
24 | #include <linux/platform_device.h> |
25 | #include <linux/pm_runtime.h> | |
26 | #include <linux/types.h> | |
27 | #include <linux/slab.h> | |
131b6c61 | 28 | #include <media/v4l2-ctrls.h> |
e2985a26 | 29 | #include <media/v4l2-of.h> |
d3953223 | 30 | #include <media/media-device.h> |
b9ee31e6 | 31 | #include <media/s5p_fimc.h> |
d3953223 | 32 | |
56fa1a6a | 33 | #include "media-dev.h" |
d3953223 | 34 | #include "fimc-core.h" |
e781bbe3 | 35 | #include "fimc-is.h" |
0f735f52 | 36 | #include "fimc-lite.h" |
d3953223 SN |
37 | #include "mipi-csis.h" |
38 | ||
39 | static int __fimc_md_set_camclk(struct fimc_md *fmd, | |
4c8f0629 | 40 | struct fimc_source_info *si, |
d3953223 SN |
41 | bool on); |
42 | /** | |
43 | * fimc_pipeline_prepare - update pipeline information with subdevice pointers | |
39bb6df6 | 44 | * @me: media entity terminating the pipeline |
d3953223 SN |
45 | * |
46 | * Caller holds the graph mutex. | |
47 | */ | |
b9ee31e6 SN |
48 | static void fimc_pipeline_prepare(struct fimc_pipeline *p, |
49 | struct media_entity *me) | |
d3953223 | 50 | { |
d3953223 | 51 | struct v4l2_subdev *sd; |
0f735f52 | 52 | int i; |
d3953223 | 53 | |
0f735f52 SN |
54 | for (i = 0; i < IDX_MAX; i++) |
55 | p->subdevs[i] = NULL; | |
d3953223 | 56 | |
0f735f52 | 57 | while (1) { |
39bb6df6 SN |
58 | struct media_pad *pad = NULL; |
59 | ||
60 | /* Find remote source pad */ | |
61 | for (i = 0; i < me->num_pads; i++) { | |
62 | struct media_pad *spad = &me->pads[i]; | |
63 | if (!(spad->flags & MEDIA_PAD_FL_SINK)) | |
64 | continue; | |
1bddf1b3 | 65 | pad = media_entity_remote_pad(spad); |
39bb6df6 SN |
66 | if (pad) |
67 | break; | |
68 | } | |
0f735f52 | 69 | |
0f735f52 SN |
70 | if (pad == NULL || |
71 | media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV) | |
72 | break; | |
0f735f52 SN |
73 | sd = media_entity_to_v4l2_subdev(pad->entity); |
74 | ||
75 | switch (sd->grp_id) { | |
588c87be SN |
76 | case GRP_ID_FIMC_IS_SENSOR: |
77 | case GRP_ID_SENSOR: | |
0f735f52 SN |
78 | p->subdevs[IDX_SENSOR] = sd; |
79 | break; | |
588c87be | 80 | case GRP_ID_CSIS: |
0f735f52 SN |
81 | p->subdevs[IDX_CSIS] = sd; |
82 | break; | |
588c87be | 83 | case GRP_ID_FLITE: |
4af81310 SN |
84 | p->subdevs[IDX_FLITE] = sd; |
85 | break; | |
588c87be | 86 | case GRP_ID_FIMC: |
0f735f52 SN |
87 | /* No need to control FIMC subdev through subdev ops */ |
88 | break; | |
e781bbe3 SN |
89 | case GRP_ID_FIMC_IS: |
90 | p->subdevs[IDX_IS_ISP] = sd; | |
91 | break; | |
0f735f52 | 92 | default: |
e781bbe3 | 93 | break; |
0f735f52 | 94 | } |
39bb6df6 SN |
95 | me = &sd->entity; |
96 | if (me->num_pads == 1) | |
97 | break; | |
d3953223 SN |
98 | } |
99 | } | |
100 | ||
101 | /** | |
102 | * __subdev_set_power - change power state of a single subdev | |
103 | * @sd: subdevice to change power state for | |
104 | * @on: 1 to enable power or 0 to disable | |
105 | * | |
106 | * Return result of s_power subdev operation or -ENXIO if sd argument | |
107 | * is NULL. Return 0 if the subdevice does not implement s_power. | |
108 | */ | |
109 | static int __subdev_set_power(struct v4l2_subdev *sd, int on) | |
110 | { | |
111 | int *use_count; | |
112 | int ret; | |
113 | ||
114 | if (sd == NULL) | |
115 | return -ENXIO; | |
116 | ||
117 | use_count = &sd->entity.use_count; | |
118 | if (on && (*use_count)++ > 0) | |
119 | return 0; | |
120 | else if (!on && (*use_count == 0 || --(*use_count) > 0)) | |
121 | return 0; | |
122 | ret = v4l2_subdev_call(sd, core, s_power, on); | |
123 | ||
124 | return ret != -ENOIOCTLCMD ? ret : 0; | |
125 | } | |
126 | ||
127 | /** | |
128 | * fimc_pipeline_s_power - change power state of all pipeline subdevs | |
129 | * @fimc: fimc device terminating the pipeline | |
0f735f52 | 130 | * @state: true to power on, false to power off |
d3953223 | 131 | * |
0f735f52 | 132 | * Needs to be called with the graph mutex held. |
d3953223 | 133 | */ |
f8bca4f5 | 134 | static int fimc_pipeline_s_power(struct fimc_pipeline *p, bool on) |
d3953223 | 135 | { |
f8bca4f5 SN |
136 | static const u8 seq[2][IDX_MAX - 1] = { |
137 | { IDX_IS_ISP, IDX_SENSOR, IDX_CSIS, IDX_FLITE }, | |
138 | { IDX_CSIS, IDX_FLITE, IDX_SENSOR, IDX_IS_ISP }, | |
139 | }; | |
140 | int i, ret = 0; | |
d3953223 | 141 | |
0f735f52 | 142 | if (p->subdevs[IDX_SENSOR] == NULL) |
d3953223 SN |
143 | return -ENXIO; |
144 | ||
f8bca4f5 SN |
145 | for (i = 0; i < IDX_MAX - 1; i++) { |
146 | unsigned int idx = seq[on][i]; | |
147 | ||
148 | ret = __subdev_set_power(p->subdevs[idx], on); | |
149 | ||
0f735f52 | 150 | |
0f735f52 | 151 | if (ret < 0 && ret != -ENXIO) |
f8bca4f5 | 152 | goto error; |
d3953223 | 153 | } |
0f735f52 | 154 | return 0; |
f8bca4f5 SN |
155 | error: |
156 | for (; i >= 0; i--) { | |
157 | unsigned int idx = seq[on][i]; | |
158 | __subdev_set_power(p->subdevs[idx], !on); | |
159 | } | |
160 | return ret; | |
d3953223 SN |
161 | } |
162 | ||
163 | /** | |
b9ee31e6 SN |
164 | * __fimc_pipeline_open - update the pipeline information, enable power |
165 | * of all pipeline subdevs and the sensor clock | |
d3953223 | 166 | * @me: media entity to start graph walk with |
056f4f30 | 167 | * @prepare: true to walk the current pipeline and acquire all subdevs |
d3953223 | 168 | * |
740ad921 | 169 | * Called with the graph mutex held. |
d3953223 | 170 | */ |
b9ee31e6 | 171 | static int __fimc_pipeline_open(struct fimc_pipeline *p, |
056f4f30 | 172 | struct media_entity *me, bool prepare) |
d3953223 | 173 | { |
056f4f30 SN |
174 | struct fimc_md *fmd = entity_to_fimc_mdev(me); |
175 | struct v4l2_subdev *sd; | |
d3953223 SN |
176 | int ret; |
177 | ||
056f4f30 SN |
178 | if (WARN_ON(p == NULL || me == NULL)) |
179 | return -EINVAL; | |
180 | ||
181 | if (prepare) | |
0f735f52 SN |
182 | fimc_pipeline_prepare(p, me); |
183 | ||
056f4f30 SN |
184 | sd = p->subdevs[IDX_SENSOR]; |
185 | if (sd == NULL) | |
d3953223 | 186 | return -EINVAL; |
0f735f52 | 187 | |
056f4f30 SN |
188 | /* Disable PXLASYNC clock if this pipeline includes FIMC-IS */ |
189 | if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP]) { | |
190 | ret = clk_prepare_enable(fmd->wbclk[CLK_IDX_WB_B]); | |
191 | if (ret < 0) | |
192 | return ret; | |
193 | } | |
194 | ret = fimc_md_set_camclk(sd, true); | |
195 | if (ret < 0) | |
196 | goto err_wbclk; | |
197 | ||
198 | ret = fimc_pipeline_s_power(p, 1); | |
199 | if (!ret) | |
200 | return 0; | |
0f735f52 | 201 | |
056f4f30 SN |
202 | fimc_md_set_camclk(sd, false); |
203 | ||
204 | err_wbclk: | |
205 | if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP]) | |
206 | clk_disable_unprepare(fmd->wbclk[CLK_IDX_WB_B]); | |
207 | ||
208 | return ret; | |
d3953223 SN |
209 | } |
210 | ||
d3953223 | 211 | /** |
b9ee31e6 | 212 | * __fimc_pipeline_close - disable the sensor clock and pipeline power |
d3953223 SN |
213 | * @fimc: fimc device terminating the pipeline |
214 | * | |
740ad921 | 215 | * Disable power of all subdevs and turn the external sensor clock off. |
d3953223 | 216 | */ |
b9ee31e6 | 217 | static int __fimc_pipeline_close(struct fimc_pipeline *p) |
d3953223 | 218 | { |
056f4f30 SN |
219 | struct v4l2_subdev *sd = p ? p->subdevs[IDX_SENSOR] : NULL; |
220 | struct fimc_md *fmd; | |
d3953223 SN |
221 | int ret = 0; |
222 | ||
056f4f30 | 223 | if (WARN_ON(sd == NULL)) |
740ad921 SN |
224 | return -EINVAL; |
225 | ||
0f735f52 SN |
226 | if (p->subdevs[IDX_SENSOR]) { |
227 | ret = fimc_pipeline_s_power(p, 0); | |
056f4f30 | 228 | fimc_md_set_camclk(sd, false); |
d3953223 | 229 | } |
056f4f30 SN |
230 | |
231 | fmd = entity_to_fimc_mdev(&sd->entity); | |
232 | ||
233 | /* Disable PXLASYNC clock if this pipeline includes FIMC-IS */ | |
234 | if (!IS_ERR(fmd->wbclk[CLK_IDX_WB_B]) && p->subdevs[IDX_IS_ISP]) | |
235 | clk_disable_unprepare(fmd->wbclk[CLK_IDX_WB_B]); | |
236 | ||
d3953223 SN |
237 | return ret == -ENXIO ? 0 : ret; |
238 | } | |
239 | ||
d3953223 | 240 | /** |
8d274e7c | 241 | * __fimc_pipeline_s_stream - call s_stream() on pipeline subdevs |
0f735f52 | 242 | * @pipeline: video pipeline structure |
8d274e7c | 243 | * @on: passed as the s_stream() callback argument |
d3953223 | 244 | */ |
740ad921 | 245 | static int __fimc_pipeline_s_stream(struct fimc_pipeline *p, bool on) |
d3953223 | 246 | { |
8d274e7c SN |
247 | static const u8 seq[2][IDX_MAX] = { |
248 | { IDX_FIMC, IDX_SENSOR, IDX_IS_ISP, IDX_CSIS, IDX_FLITE }, | |
249 | { IDX_CSIS, IDX_FLITE, IDX_FIMC, IDX_SENSOR, IDX_IS_ISP }, | |
250 | }; | |
251 | int i, ret = 0; | |
d3953223 | 252 | |
0f735f52 | 253 | if (p->subdevs[IDX_SENSOR] == NULL) |
d3953223 SN |
254 | return -ENODEV; |
255 | ||
0f735f52 | 256 | for (i = 0; i < IDX_MAX; i++) { |
8d274e7c | 257 | unsigned int idx = seq[on][i]; |
0f735f52 SN |
258 | |
259 | ret = v4l2_subdev_call(p->subdevs[idx], video, s_stream, on); | |
260 | ||
261 | if (ret < 0 && ret != -ENOIOCTLCMD && ret != -ENODEV) | |
8d274e7c | 262 | goto error; |
0f735f52 | 263 | } |
0f735f52 | 264 | return 0; |
8d274e7c SN |
265 | error: |
266 | for (; i >= 0; i--) { | |
267 | unsigned int idx = seq[on][i]; | |
268 | v4l2_subdev_call(p->subdevs[idx], video, s_stream, !on); | |
269 | } | |
270 | return ret; | |
d3953223 | 271 | } |
b9ee31e6 SN |
272 | |
273 | /* Media pipeline operations for the FIMC/FIMC-LITE video device driver */ | |
274 | static const struct fimc_pipeline_ops fimc_pipeline_ops = { | |
740ad921 SN |
275 | .open = __fimc_pipeline_open, |
276 | .close = __fimc_pipeline_close, | |
277 | .set_stream = __fimc_pipeline_s_stream, | |
b9ee31e6 | 278 | }; |
d3953223 SN |
279 | |
280 | /* | |
281 | * Sensor subdevice helper functions | |
282 | */ | |
283 | static struct v4l2_subdev *fimc_md_register_sensor(struct fimc_md *fmd, | |
4c8f0629 | 284 | struct fimc_source_info *si) |
d3953223 SN |
285 | { |
286 | struct i2c_adapter *adapter; | |
287 | struct v4l2_subdev *sd = NULL; | |
288 | ||
4c8f0629 | 289 | if (!si || !fmd) |
d3953223 | 290 | return NULL; |
88fa8311 SN |
291 | /* |
292 | * If FIMC bus type is not Writeback FIFO assume it is same | |
293 | * as sensor_bus_type. | |
294 | */ | |
4c8f0629 | 295 | si->fimc_bus_type = si->sensor_bus_type; |
d3953223 | 296 | |
4c8f0629 | 297 | adapter = i2c_get_adapter(si->i2c_bus_num); |
ecd9acbf SN |
298 | if (!adapter) { |
299 | v4l2_warn(&fmd->v4l2_dev, | |
300 | "Failed to get I2C adapter %d, deferring probe\n", | |
4c8f0629 | 301 | si->i2c_bus_num); |
ecd9acbf SN |
302 | return ERR_PTR(-EPROBE_DEFER); |
303 | } | |
d3953223 | 304 | sd = v4l2_i2c_new_subdev_board(&fmd->v4l2_dev, adapter, |
4c8f0629 | 305 | si->board_info, NULL); |
d3953223 | 306 | if (IS_ERR_OR_NULL(sd)) { |
7acde02a | 307 | i2c_put_adapter(adapter); |
ecd9acbf SN |
308 | v4l2_warn(&fmd->v4l2_dev, |
309 | "Failed to acquire subdev %s, deferring probe\n", | |
4c8f0629 | 310 | si->board_info->type); |
ecd9acbf | 311 | return ERR_PTR(-EPROBE_DEFER); |
d3953223 | 312 | } |
4c8f0629 | 313 | v4l2_set_subdev_hostdata(sd, si); |
588c87be | 314 | sd->grp_id = GRP_ID_SENSOR; |
d3953223 SN |
315 | |
316 | v4l2_info(&fmd->v4l2_dev, "Registered sensor subdevice %s\n", | |
2b13f7d4 | 317 | sd->name); |
d3953223 SN |
318 | return sd; |
319 | } | |
320 | ||
321 | static void fimc_md_unregister_sensor(struct v4l2_subdev *sd) | |
322 | { | |
323 | struct i2c_client *client = v4l2_get_subdevdata(sd); | |
7acde02a | 324 | struct i2c_adapter *adapter; |
d3953223 SN |
325 | |
326 | if (!client) | |
327 | return; | |
e781bbe3 | 328 | |
d3953223 | 329 | v4l2_device_unregister_subdev(sd); |
2b13f7d4 SN |
330 | |
331 | if (!client->dev.of_node) { | |
332 | adapter = client->adapter; | |
333 | i2c_unregister_device(client); | |
334 | if (adapter) | |
335 | i2c_put_adapter(adapter); | |
336 | } | |
d3953223 SN |
337 | } |
338 | ||
e2985a26 | 339 | #ifdef CONFIG_OF |
2b13f7d4 SN |
340 | /* Register I2C client subdev associated with @node. */ |
341 | static int fimc_md_of_add_sensor(struct fimc_md *fmd, | |
342 | struct device_node *node, int index) | |
343 | { | |
344 | struct fimc_sensor_info *si; | |
345 | struct i2c_client *client; | |
346 | struct v4l2_subdev *sd; | |
347 | int ret; | |
348 | ||
349 | if (WARN_ON(index >= ARRAY_SIZE(fmd->sensor))) | |
350 | return -EINVAL; | |
351 | si = &fmd->sensor[index]; | |
352 | ||
353 | client = of_find_i2c_device_by_node(node); | |
354 | if (!client) | |
355 | return -EPROBE_DEFER; | |
356 | ||
357 | device_lock(&client->dev); | |
358 | ||
359 | if (!client->driver || | |
360 | !try_module_get(client->driver->driver.owner)) { | |
361 | ret = -EPROBE_DEFER; | |
362 | v4l2_info(&fmd->v4l2_dev, "No driver found for %s\n", | |
363 | node->full_name); | |
364 | goto dev_put; | |
365 | } | |
366 | ||
367 | /* Enable sensor's master clock */ | |
4c8f0629 | 368 | ret = __fimc_md_set_camclk(fmd, &si->pdata, true); |
2b13f7d4 SN |
369 | if (ret < 0) |
370 | goto mod_put; | |
371 | sd = i2c_get_clientdata(client); | |
372 | ||
373 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); | |
4c8f0629 | 374 | __fimc_md_set_camclk(fmd, &si->pdata, false); |
2b13f7d4 SN |
375 | if (ret < 0) |
376 | goto mod_put; | |
377 | ||
4c8f0629 | 378 | v4l2_set_subdev_hostdata(sd, &si->pdata); |
e781bbe3 SN |
379 | if (si->pdata.fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) |
380 | sd->grp_id = GRP_ID_FIMC_IS_SENSOR; | |
381 | else | |
382 | sd->grp_id = GRP_ID_SENSOR; | |
383 | ||
2b13f7d4 SN |
384 | si->subdev = sd; |
385 | v4l2_info(&fmd->v4l2_dev, "Registered sensor subdevice: %s (%d)\n", | |
386 | sd->name, fmd->num_sensors); | |
387 | fmd->num_sensors++; | |
388 | ||
389 | mod_put: | |
390 | module_put(client->driver->driver.owner); | |
391 | dev_put: | |
392 | device_unlock(&client->dev); | |
393 | put_device(&client->dev); | |
394 | return ret; | |
395 | } | |
396 | ||
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; | |
405 | int ret; | |
406 | u32 val; | |
407 | ||
408 | pd = &fmd->sensor[index].pdata; | |
409 | ||
410 | /* Assume here a port node can have only one endpoint node. */ | |
411 | ep = of_get_next_child(port, NULL); | |
412 | if (!ep) | |
413 | return 0; | |
414 | ||
415 | v4l2_of_parse_endpoint(ep, &endpoint); | |
416 | if (WARN_ON(endpoint.port == 0) || index >= FIMC_MAX_SENSORS) | |
417 | return -EINVAL; | |
418 | ||
419 | pd->mux_id = (endpoint.port - 1) & 0x1; | |
420 | ||
421 | rem = v4l2_of_get_remote_port_parent(ep); | |
422 | of_node_put(ep); | |
423 | if (rem == NULL) { | |
424 | v4l2_info(&fmd->v4l2_dev, "Remote device at %s not found\n", | |
425 | ep->full_name); | |
426 | return 0; | |
427 | } | |
428 | if (!of_property_read_u32(rem, "samsung,camclk-out", &val)) | |
429 | pd->clk_id = val; | |
430 | ||
431 | if (!of_property_read_u32(rem, "clock-frequency", &val)) | |
432 | pd->clk_frequency = val; | |
433 | ||
434 | if (pd->clk_frequency == 0) { | |
435 | v4l2_err(&fmd->v4l2_dev, "Wrong clock frequency at node %s\n", | |
436 | rem->full_name); | |
437 | of_node_put(rem); | |
438 | return -EINVAL; | |
439 | } | |
440 | ||
441 | if (fimc_input_is_parallel(endpoint.port)) { | |
442 | if (endpoint.bus_type == V4L2_MBUS_PARALLEL) | |
443 | pd->sensor_bus_type = FIMC_BUS_TYPE_ITU_601; | |
444 | else | |
445 | pd->sensor_bus_type = FIMC_BUS_TYPE_ITU_656; | |
446 | pd->flags = endpoint.bus.parallel.flags; | |
447 | } else if (fimc_input_is_mipi_csi(endpoint.port)) { | |
448 | /* | |
449 | * MIPI CSI-2: only input mux selection and | |
450 | * the sensor's clock frequency is needed. | |
451 | */ | |
452 | pd->sensor_bus_type = FIMC_BUS_TYPE_MIPI_CSI2; | |
453 | } else { | |
454 | v4l2_err(&fmd->v4l2_dev, "Wrong port id (%u) at node %s\n", | |
455 | endpoint.port, rem->full_name); | |
456 | } | |
457 | /* | |
458 | * For FIMC-IS handled sensors, that are placed under i2c-isp device | |
459 | * node, FIMC is connected to the FIMC-IS through its ISP Writeback | |
460 | * input. Sensors are attached to the FIMC-LITE hostdata interface | |
461 | * directly or through MIPI-CSIS, depending on the external media bus | |
462 | * used. This needs to be handled in a more reliable way, not by just | |
463 | * checking parent's node name. | |
464 | */ | |
465 | np = of_get_parent(rem); | |
466 | ||
467 | if (np && !of_node_cmp(np->name, "i2c-isp")) | |
468 | pd->fimc_bus_type = FIMC_BUS_TYPE_ISP_WRITEBACK; | |
469 | else | |
470 | pd->fimc_bus_type = pd->sensor_bus_type; | |
471 | ||
472 | ret = fimc_md_of_add_sensor(fmd, rem, index); | |
473 | of_node_put(rem); | |
474 | ||
475 | return ret; | |
476 | } | |
477 | ||
478 | /* Register all SoC external sub-devices */ | |
479 | static int fimc_md_of_sensors_register(struct fimc_md *fmd, | |
480 | struct device_node *np) | |
481 | { | |
482 | struct device_node *parent = fmd->pdev->dev.of_node; | |
483 | struct device_node *node, *ports; | |
484 | int index = 0; | |
485 | int ret; | |
486 | ||
487 | /* Attach sensors linked to MIPI CSI-2 receivers */ | |
488 | for_each_available_child_of_node(parent, node) { | |
489 | struct device_node *port; | |
490 | ||
491 | if (of_node_cmp(node->name, "csis")) | |
492 | continue; | |
493 | /* The csis node can have only port subnode. */ | |
494 | port = of_get_next_child(node, NULL); | |
495 | if (!port) | |
496 | continue; | |
497 | ||
498 | ret = fimc_md_parse_port_node(fmd, port, index); | |
499 | if (ret < 0) | |
500 | return ret; | |
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) | |
507 | return 0; | |
508 | ||
509 | for_each_child_of_node(ports, node) { | |
510 | ret = fimc_md_parse_port_node(fmd, node, index); | |
511 | if (ret < 0) | |
512 | break; | |
513 | index++; | |
514 | } | |
515 | ||
516 | return 0; | |
517 | } | |
518 | ||
e2985a26 SN |
519 | static int __of_get_csis_id(struct device_node *np) |
520 | { | |
521 | u32 reg = 0; | |
522 | ||
523 | np = of_get_child_by_name(np, "port"); | |
524 | if (!np) | |
525 | return -EINVAL; | |
526 | of_property_read_u32(np, "reg", ®); | |
527 | return reg - FIMC_INPUT_MIPI_CSI2_0; | |
528 | } | |
529 | #else | |
2b13f7d4 | 530 | #define fimc_md_of_sensors_register(fmd, np) (-ENOSYS) |
e2985a26 SN |
531 | #define __of_get_csis_id(np) (-ENOSYS) |
532 | #endif | |
533 | ||
d3953223 SN |
534 | static int fimc_md_register_sensor_entities(struct fimc_md *fmd) |
535 | { | |
536 | struct s5p_platform_fimc *pdata = fmd->pdev->dev.platform_data; | |
2b13f7d4 | 537 | struct device_node *of_node = fmd->pdev->dev.of_node; |
2b13f7d4 SN |
538 | int num_clients = 0; |
539 | int ret, i; | |
d3953223 SN |
540 | |
541 | /* | |
542 | * Runtime resume one of the FIMC entities to make sure | |
543 | * the sclk_cam clocks are not globally disabled. | |
544 | */ | |
3e20c345 | 545 | if (!fmd->pmf) |
d3953223 | 546 | return -ENXIO; |
2b13f7d4 | 547 | |
3e20c345 | 548 | ret = pm_runtime_get_sync(fmd->pmf); |
d3953223 SN |
549 | if (ret < 0) |
550 | return ret; | |
551 | ||
2b13f7d4 SN |
552 | if (of_node) { |
553 | fmd->num_sensors = 0; | |
554 | ret = fimc_md_of_sensors_register(fmd, of_node); | |
555 | } else if (pdata) { | |
556 | WARN_ON(pdata->num_clients > ARRAY_SIZE(fmd->sensor)); | |
557 | num_clients = min_t(u32, pdata->num_clients, | |
558 | ARRAY_SIZE(fmd->sensor)); | |
559 | fmd->num_sensors = num_clients; | |
d3953223 | 560 | |
2b13f7d4 | 561 | for (i = 0; i < num_clients; i++) { |
4c8f0629 | 562 | struct fimc_sensor_info *si = &fmd->sensor[i]; |
2b13f7d4 | 563 | struct v4l2_subdev *sd; |
ecd9acbf | 564 | |
4c8f0629 SN |
565 | si->pdata = pdata->source_info[i]; |
566 | ret = __fimc_md_set_camclk(fmd, &si->pdata, true); | |
2b13f7d4 SN |
567 | if (ret) |
568 | break; | |
4c8f0629 SN |
569 | sd = fimc_md_register_sensor(fmd, &si->pdata); |
570 | ret = __fimc_md_set_camclk(fmd, &si->pdata, false); | |
2b13f7d4 SN |
571 | |
572 | if (IS_ERR(sd)) { | |
4c8f0629 | 573 | si->subdev = NULL; |
2b13f7d4 SN |
574 | ret = PTR_ERR(sd); |
575 | break; | |
576 | } | |
4c8f0629 | 577 | si->subdev = sd; |
2b13f7d4 SN |
578 | if (ret) |
579 | break; | |
ecd9acbf | 580 | } |
d3953223 | 581 | } |
2b13f7d4 | 582 | |
3e20c345 | 583 | pm_runtime_put(fmd->pmf); |
d3953223 SN |
584 | return ret; |
585 | } | |
586 | ||
587 | /* | |
7b43a6f3 | 588 | * MIPI-CSIS, FIMC and FIMC-LITE platform devices registration. |
d3953223 | 589 | */ |
7b43a6f3 SN |
590 | |
591 | static int register_fimc_lite_entity(struct fimc_md *fmd, | |
592 | struct fimc_lite *fimc_lite) | |
d3953223 | 593 | { |
8163ec0b | 594 | struct v4l2_subdev *sd; |
afd7348c | 595 | int ret; |
4af81310 | 596 | |
7b43a6f3 SN |
597 | if (WARN_ON(fimc_lite->index >= FIMC_LITE_MAX_DEVS || |
598 | fmd->fimc_lite[fimc_lite->index])) | |
599 | return -EBUSY; | |
d3953223 | 600 | |
7b43a6f3 SN |
601 | sd = &fimc_lite->subdev; |
602 | sd->grp_id = GRP_ID_FLITE; | |
97d66c47 | 603 | v4l2_set_subdev_hostdata(sd, (void *)&fimc_pipeline_ops); |
693f5c40 SN |
604 | |
605 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); | |
7b43a6f3 SN |
606 | if (!ret) |
607 | fmd->fimc_lite[fimc_lite->index] = fimc_lite; | |
608 | else | |
609 | v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.LITE%d\n", | |
610 | fimc_lite->index); | |
611 | return ret; | |
d3953223 SN |
612 | } |
613 | ||
7b43a6f3 | 614 | static int register_fimc_entity(struct fimc_md *fmd, struct fimc_dev *fimc) |
4af81310 | 615 | { |
7b43a6f3 | 616 | struct v4l2_subdev *sd; |
4af81310 SN |
617 | int ret; |
618 | ||
7b43a6f3 SN |
619 | if (WARN_ON(fimc->id >= FIMC_MAX_DEVS || fmd->fimc[fimc->id])) |
620 | return -EBUSY; | |
4af81310 | 621 | |
7b43a6f3 SN |
622 | sd = &fimc->vid_cap.subdev; |
623 | sd->grp_id = GRP_ID_FIMC; | |
624 | v4l2_set_subdev_hostdata(sd, (void *)&fimc_pipeline_ops); | |
4af81310 | 625 | |
7b43a6f3 SN |
626 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); |
627 | if (!ret) { | |
3e20c345 SN |
628 | if (!fmd->pmf && fimc->pdev) |
629 | fmd->pmf = &fimc->pdev->dev; | |
7b43a6f3 SN |
630 | fmd->fimc[fimc->id] = fimc; |
631 | fimc->vid_cap.user_subdev_api = fmd->user_subdev_api; | |
632 | } else { | |
633 | v4l2_err(&fmd->v4l2_dev, "Failed to register FIMC.%d (%d)\n", | |
634 | fimc->id, ret); | |
4af81310 | 635 | } |
7b43a6f3 | 636 | return ret; |
4af81310 SN |
637 | } |
638 | ||
7b43a6f3 SN |
639 | static int register_csis_entity(struct fimc_md *fmd, |
640 | struct platform_device *pdev, | |
641 | struct v4l2_subdev *sd) | |
d3953223 | 642 | { |
7b43a6f3 | 643 | struct device_node *node = pdev->dev.of_node; |
d3953223 SN |
644 | int id, ret; |
645 | ||
e2985a26 | 646 | id = node ? __of_get_csis_id(node) : max(0, pdev->id); |
7b43a6f3 | 647 | |
e2985a26 SN |
648 | if (WARN_ON(id < 0 || id >= CSIS_MAX_ENTITIES)) |
649 | return -ENOENT; | |
7b43a6f3 | 650 | |
e2985a26 SN |
651 | if (WARN_ON(fmd->csis[id].sd)) |
652 | return -EBUSY; | |
d3953223 | 653 | |
588c87be | 654 | sd->grp_id = GRP_ID_CSIS; |
d3953223 | 655 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); |
afd7348c SN |
656 | if (!ret) |
657 | fmd->csis[id].sd = sd; | |
658 | else | |
d3953223 | 659 | v4l2_err(&fmd->v4l2_dev, |
7b43a6f3 | 660 | "Failed to register MIPI-CSIS.%d (%d)\n", id, ret); |
d3953223 SN |
661 | return ret; |
662 | } | |
663 | ||
e781bbe3 SN |
664 | static int register_fimc_is_entity(struct fimc_md *fmd, struct fimc_is *is) |
665 | { | |
666 | struct v4l2_subdev *sd = &is->isp.subdev; | |
667 | int ret; | |
668 | ||
669 | ret = v4l2_device_register_subdev(&fmd->v4l2_dev, sd); | |
670 | if (ret) { | |
671 | v4l2_err(&fmd->v4l2_dev, | |
672 | "Failed to register FIMC-ISP (%d)\n", ret); | |
673 | return ret; | |
674 | } | |
675 | ||
676 | fmd->fimc_is = is; | |
677 | return 0; | |
678 | } | |
679 | ||
7b43a6f3 SN |
680 | static int fimc_md_register_platform_entity(struct fimc_md *fmd, |
681 | struct platform_device *pdev, | |
682 | int plat_entity) | |
d3953223 | 683 | { |
7b43a6f3 SN |
684 | struct device *dev = &pdev->dev; |
685 | int ret = -EPROBE_DEFER; | |
686 | void *drvdata; | |
687 | ||
688 | /* Lock to ensure dev->driver won't change. */ | |
689 | device_lock(dev); | |
690 | ||
691 | if (!dev->driver || !try_module_get(dev->driver->owner)) | |
692 | goto dev_unlock; | |
693 | ||
694 | drvdata = dev_get_drvdata(dev); | |
695 | /* Some subdev didn't probe succesfully id drvdata is NULL */ | |
696 | if (drvdata) { | |
697 | switch (plat_entity) { | |
698 | case IDX_FIMC: | |
699 | ret = register_fimc_entity(fmd, drvdata); | |
700 | break; | |
701 | case IDX_FLITE: | |
702 | ret = register_fimc_lite_entity(fmd, drvdata); | |
ecd9acbf | 703 | break; |
7b43a6f3 SN |
704 | case IDX_CSIS: |
705 | ret = register_csis_entity(fmd, pdev, drvdata); | |
706 | break; | |
e781bbe3 SN |
707 | case IDX_IS_ISP: |
708 | ret = register_fimc_is_entity(fmd, drvdata); | |
709 | break; | |
7b43a6f3 SN |
710 | default: |
711 | ret = -ENODEV; | |
ecd9acbf SN |
712 | } |
713 | } | |
d3953223 | 714 | |
7b43a6f3 SN |
715 | module_put(dev->driver->owner); |
716 | dev_unlock: | |
717 | device_unlock(dev); | |
718 | if (ret == -EPROBE_DEFER) | |
719 | dev_info(&fmd->pdev->dev, "deferring %s device registration\n", | |
720 | dev_name(dev)); | |
721 | else if (ret < 0) | |
722 | dev_err(&fmd->pdev->dev, "%s device registration failed (%d)\n", | |
723 | dev_name(dev), ret); | |
724 | return ret; | |
725 | } | |
726 | ||
727 | static int fimc_md_pdev_match(struct device *dev, void *data) | |
728 | { | |
729 | struct platform_device *pdev = to_platform_device(dev); | |
730 | int plat_entity = -1; | |
731 | int ret; | |
732 | char *p; | |
733 | ||
734 | if (!get_device(dev)) | |
735 | return -ENODEV; | |
736 | ||
737 | if (!strcmp(pdev->name, CSIS_DRIVER_NAME)) { | |
738 | plat_entity = IDX_CSIS; | |
739 | } else if (!strcmp(pdev->name, FIMC_LITE_DRV_NAME)) { | |
740 | plat_entity = IDX_FLITE; | |
741 | } else { | |
742 | p = strstr(pdev->name, "fimc"); | |
743 | if (p && *(p + 4) == 0) | |
744 | plat_entity = IDX_FIMC; | |
ecd9acbf SN |
745 | } |
746 | ||
7b43a6f3 SN |
747 | if (plat_entity >= 0) |
748 | ret = fimc_md_register_platform_entity(data, pdev, | |
749 | plat_entity); | |
750 | put_device(dev); | |
751 | return 0; | |
d3953223 SN |
752 | } |
753 | ||
e2985a26 SN |
754 | /* Register FIMC, FIMC-LITE and CSIS media entities */ |
755 | #ifdef CONFIG_OF | |
756 | static int fimc_md_register_of_platform_entities(struct fimc_md *fmd, | |
757 | struct device_node *parent) | |
758 | { | |
759 | struct device_node *node; | |
760 | int ret = 0; | |
761 | ||
762 | for_each_available_child_of_node(parent, node) { | |
763 | struct platform_device *pdev; | |
764 | int plat_entity = -1; | |
765 | ||
766 | pdev = of_find_device_by_node(node); | |
767 | if (!pdev) | |
768 | continue; | |
769 | ||
770 | /* If driver of any entity isn't ready try all again later. */ | |
771 | if (!strcmp(node->name, CSIS_OF_NODE_NAME)) | |
772 | plat_entity = IDX_CSIS; | |
e781bbe3 SN |
773 | else if (!strcmp(node->name, FIMC_IS_OF_NODE_NAME)) |
774 | plat_entity = IDX_IS_ISP; | |
e2985a26 SN |
775 | else if (!strcmp(node->name, FIMC_LITE_OF_NODE_NAME)) |
776 | plat_entity = IDX_FLITE; | |
777 | else if (!strcmp(node->name, FIMC_OF_NODE_NAME) && | |
778 | !of_property_read_bool(node, "samsung,lcd-wb")) | |
779 | plat_entity = IDX_FIMC; | |
780 | ||
781 | if (plat_entity >= 0) | |
782 | ret = fimc_md_register_platform_entity(fmd, pdev, | |
783 | plat_entity); | |
784 | put_device(&pdev->dev); | |
785 | if (ret < 0) | |
786 | break; | |
787 | } | |
788 | ||
789 | return ret; | |
790 | } | |
791 | #else | |
792 | #define fimc_md_register_of_platform_entities(fmd, node) (-ENOSYS) | |
793 | #endif | |
794 | ||
d3953223 SN |
795 | static void fimc_md_unregister_entities(struct fimc_md *fmd) |
796 | { | |
797 | int i; | |
798 | ||
799 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
800 | if (fmd->fimc[i] == NULL) | |
801 | continue; | |
693f5c40 | 802 | v4l2_device_unregister_subdev(&fmd->fimc[i]->vid_cap.subdev); |
b9ee31e6 | 803 | fmd->fimc[i]->pipeline_ops = NULL; |
d3953223 SN |
804 | fmd->fimc[i] = NULL; |
805 | } | |
4af81310 SN |
806 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { |
807 | if (fmd->fimc_lite[i] == NULL) | |
808 | continue; | |
809 | v4l2_device_unregister_subdev(&fmd->fimc_lite[i]->subdev); | |
248ac368 | 810 | fmd->fimc_lite[i]->pipeline_ops = NULL; |
4af81310 SN |
811 | fmd->fimc_lite[i] = NULL; |
812 | } | |
d3953223 SN |
813 | for (i = 0; i < CSIS_MAX_ENTITIES; i++) { |
814 | if (fmd->csis[i].sd == NULL) | |
815 | continue; | |
816 | v4l2_device_unregister_subdev(fmd->csis[i].sd); | |
817 | fmd->csis[i].sd = NULL; | |
818 | } | |
819 | for (i = 0; i < fmd->num_sensors; i++) { | |
820 | if (fmd->sensor[i].subdev == NULL) | |
821 | continue; | |
822 | fimc_md_unregister_sensor(fmd->sensor[i].subdev); | |
823 | fmd->sensor[i].subdev = NULL; | |
824 | } | |
e41a35cb SN |
825 | |
826 | if (fmd->fimc_is) | |
827 | v4l2_device_unregister_subdev(&fmd->fimc_is->isp.subdev); | |
828 | ||
7b43a6f3 | 829 | v4l2_info(&fmd->v4l2_dev, "Unregistered all entities\n"); |
d3953223 SN |
830 | } |
831 | ||
d3953223 SN |
832 | /** |
833 | * __fimc_md_create_fimc_links - create links to all FIMC entities | |
834 | * @fmd: fimc media device | |
835 | * @source: the source entity to create links to all fimc entities from | |
836 | * @sensor: sensor subdev linked to FIMC[fimc_id] entity, may be null | |
837 | * @pad: the source entity pad index | |
d0da3c35 | 838 | * @link_mask: bitmask of the fimc devices for which link should be enabled |
d3953223 | 839 | */ |
4af81310 SN |
840 | static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, |
841 | struct media_entity *source, | |
842 | struct v4l2_subdev *sensor, | |
d0da3c35 | 843 | int pad, int link_mask) |
d3953223 | 844 | { |
4c8f0629 | 845 | struct fimc_source_info *si = NULL; |
d3953223 | 846 | struct media_entity *sink; |
4af81310 | 847 | unsigned int flags = 0; |
f998bb7b | 848 | int i, ret = 0; |
d3953223 | 849 | |
f998bb7b SN |
850 | if (sensor) { |
851 | si = v4l2_get_subdev_hostdata(sensor); | |
852 | /* Skip direct FIMC links in the logical FIMC-IS sensor path */ | |
4c8f0629 | 853 | if (si && si->fimc_bus_type == FIMC_BUS_TYPE_ISP_WRITEBACK) |
f998bb7b SN |
854 | ret = 1; |
855 | } | |
856 | ||
857 | for (i = 0; !ret && i < FIMC_MAX_DEVS; i++) { | |
d3953223 | 858 | if (!fmd->fimc[i]) |
4af81310 | 859 | continue; |
d3953223 SN |
860 | /* |
861 | * Some FIMC variants are not fitted with camera capture | |
862 | * interface. Skip creating a link from sensor for those. | |
863 | */ | |
4af81310 | 864 | if (!fmd->fimc[i]->variant->has_cam_if) |
d3953223 SN |
865 | continue; |
866 | ||
d0da3c35 | 867 | flags = ((1 << i) & link_mask) ? MEDIA_LNK_FL_ENABLED : 0; |
4af81310 | 868 | |
693f5c40 | 869 | sink = &fmd->fimc[i]->vid_cap.subdev.entity; |
237e0265 | 870 | ret = media_entity_create_link(source, pad, sink, |
88fa8311 | 871 | FIMC_SD_PAD_SINK_CAM, flags); |
d3953223 SN |
872 | if (ret) |
873 | return ret; | |
874 | ||
237e0265 SN |
875 | /* Notify FIMC capture subdev entity */ |
876 | ret = media_entity_call(sink, link_setup, &sink->pads[0], | |
877 | &source->pads[pad], flags); | |
878 | if (ret) | |
879 | break; | |
880 | ||
542fb082 | 881 | v4l2_info(&fmd->v4l2_dev, "created link [%s] %c> [%s]\n", |
d3953223 SN |
882 | source->name, flags ? '=' : '-', sink->name); |
883 | ||
4af81310 | 884 | if (flags == 0 || sensor == NULL) |
d3953223 | 885 | continue; |
f998bb7b SN |
886 | |
887 | if (!WARN_ON(si == NULL)) { | |
d3953223 | 888 | unsigned long irq_flags; |
4c8f0629 SN |
889 | struct fimc_sensor_info *inf = source_to_sensor_info(si); |
890 | ||
d3953223 | 891 | spin_lock_irqsave(&fmd->slock, irq_flags); |
4c8f0629 | 892 | inf->host = fmd->fimc[i]; |
d3953223 SN |
893 | spin_unlock_irqrestore(&fmd->slock, irq_flags); |
894 | } | |
895 | } | |
4af81310 SN |
896 | |
897 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { | |
898 | if (!fmd->fimc_lite[i]) | |
899 | continue; | |
900 | ||
4af81310 SN |
901 | sink = &fmd->fimc_lite[i]->subdev.entity; |
902 | ret = media_entity_create_link(source, pad, sink, | |
f998bb7b | 903 | FLITE_SD_PAD_SINK, 0); |
4af81310 SN |
904 | if (ret) |
905 | return ret; | |
906 | ||
907 | /* Notify FIMC-LITE subdev entity */ | |
908 | ret = media_entity_call(sink, link_setup, &sink->pads[0], | |
f998bb7b | 909 | &source->pads[pad], 0); |
4af81310 SN |
910 | if (ret) |
911 | break; | |
912 | ||
f998bb7b SN |
913 | v4l2_info(&fmd->v4l2_dev, "created link [%s] -> [%s]\n", |
914 | source->name, sink->name); | |
4af81310 | 915 | } |
d3953223 SN |
916 | return 0; |
917 | } | |
918 | ||
4af81310 SN |
919 | /* Create links from FIMC-LITE source pads to other entities */ |
920 | static int __fimc_md_create_flite_source_links(struct fimc_md *fmd) | |
921 | { | |
922 | struct media_entity *source, *sink; | |
a26860bd | 923 | int i, ret = 0; |
4af81310 SN |
924 | |
925 | for (i = 0; i < FIMC_LITE_MAX_DEVS; i++) { | |
926 | struct fimc_lite *fimc = fmd->fimc_lite[i]; | |
f998bb7b | 927 | |
4af81310 SN |
928 | if (fimc == NULL) |
929 | continue; | |
f998bb7b | 930 | |
4af81310 | 931 | source = &fimc->subdev.entity; |
bc7584b0 | 932 | sink = &fimc->ve.vdev.entity; |
4af81310 | 933 | /* FIMC-LITE's subdev and video node */ |
6319d6a0 | 934 | ret = media_entity_create_link(source, FLITE_SD_PAD_SOURCE_DMA, |
f998bb7b SN |
935 | sink, 0, 0); |
936 | if (ret) | |
937 | break; | |
938 | /* Link from FIMC-LITE to IS-ISP subdev */ | |
939 | sink = &fmd->fimc_is->isp.subdev.entity; | |
940 | ret = media_entity_create_link(source, FLITE_SD_PAD_SOURCE_ISP, | |
941 | sink, 0, 0); | |
4af81310 SN |
942 | if (ret) |
943 | break; | |
f998bb7b SN |
944 | } |
945 | ||
946 | return ret; | |
947 | } | |
948 | ||
949 | /* Create FIMC-IS links */ | |
950 | static int __fimc_md_create_fimc_is_links(struct fimc_md *fmd) | |
951 | { | |
952 | struct media_entity *source, *sink; | |
953 | int i, ret; | |
954 | ||
955 | source = &fmd->fimc_is->isp.subdev.entity; | |
956 | ||
957 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
958 | if (fmd->fimc[i] == NULL) | |
959 | continue; | |
960 | ||
961 | /* Link from IS-ISP subdev to FIMC */ | |
962 | sink = &fmd->fimc[i]->vid_cap.subdev.entity; | |
963 | ret = media_entity_create_link(source, FIMC_ISP_SD_PAD_SRC_FIFO, | |
964 | sink, FIMC_SD_PAD_SINK_FIFO, 0); | |
965 | if (ret) | |
966 | return ret; | |
4af81310 SN |
967 | } |
968 | ||
969 | return ret; | |
970 | } | |
971 | ||
d3953223 SN |
972 | /** |
973 | * fimc_md_create_links - create default links between registered entities | |
974 | * | |
975 | * Parallel interface sensor entities are connected directly to FIMC capture | |
976 | * entities. The sensors using MIPI CSIS bus are connected through immutable | |
977 | * link with CSI receiver entity specified by mux_id. Any registered CSIS | |
978 | * entity has a link to each registered FIMC capture entity. Enabled links | |
979 | * are created by default between each subsequent registered sensor and | |
980 | * subsequent FIMC capture entity. The number of default active links is | |
981 | * determined by the number of available sensors or FIMC entities, | |
982 | * whichever is less. | |
983 | */ | |
984 | static int fimc_md_create_links(struct fimc_md *fmd) | |
985 | { | |
a8697ec8 | 986 | struct v4l2_subdev *csi_sensors[CSIS_MAX_ENTITIES] = { NULL }; |
d3953223 | 987 | struct v4l2_subdev *sensor, *csis; |
56bc911a | 988 | struct fimc_source_info *pdata; |
237e0265 | 989 | struct media_entity *source, *sink; |
d0da3c35 SN |
990 | int i, pad, fimc_id = 0, ret = 0; |
991 | u32 flags, link_mask = 0; | |
d3953223 SN |
992 | |
993 | for (i = 0; i < fmd->num_sensors; i++) { | |
994 | if (fmd->sensor[i].subdev == NULL) | |
995 | continue; | |
996 | ||
997 | sensor = fmd->sensor[i].subdev; | |
4c8f0629 SN |
998 | pdata = v4l2_get_subdev_hostdata(sensor); |
999 | if (!pdata) | |
d3953223 SN |
1000 | continue; |
1001 | ||
1002 | source = NULL; | |
d3953223 | 1003 | |
56bc911a SN |
1004 | switch (pdata->sensor_bus_type) { |
1005 | case FIMC_BUS_TYPE_MIPI_CSI2: | |
d3953223 SN |
1006 | if (WARN(pdata->mux_id >= CSIS_MAX_ENTITIES, |
1007 | "Wrong CSI channel id: %d\n", pdata->mux_id)) | |
1008 | return -EINVAL; | |
1009 | ||
1010 | csis = fmd->csis[pdata->mux_id].sd; | |
1011 | if (WARN(csis == NULL, | |
1012 | "MIPI-CSI interface specified " | |
1013 | "but s5p-csis module is not loaded!\n")) | |
d12392ec | 1014 | return -EINVAL; |
d3953223 | 1015 | |
1c9f5bd7 AH |
1016 | pad = sensor->entity.num_pads - 1; |
1017 | ret = media_entity_create_link(&sensor->entity, pad, | |
d3953223 SN |
1018 | &csis->entity, CSIS_PAD_SINK, |
1019 | MEDIA_LNK_FL_IMMUTABLE | | |
1020 | MEDIA_LNK_FL_ENABLED); | |
1021 | if (ret) | |
1022 | return ret; | |
1023 | ||
969e877c | 1024 | v4l2_info(&fmd->v4l2_dev, "created link [%s] => [%s]\n", |
d3953223 SN |
1025 | sensor->entity.name, csis->entity.name); |
1026 | ||
4af81310 | 1027 | source = NULL; |
5d33ee92 | 1028 | csi_sensors[pdata->mux_id] = sensor; |
d3953223 SN |
1029 | break; |
1030 | ||
56bc911a | 1031 | case FIMC_BUS_TYPE_ITU_601...FIMC_BUS_TYPE_ITU_656: |
d3953223 SN |
1032 | source = &sensor->entity; |
1033 | pad = 0; | |
1034 | break; | |
1035 | ||
1036 | default: | |
1037 | v4l2_err(&fmd->v4l2_dev, "Wrong bus_type: %x\n", | |
56bc911a | 1038 | pdata->sensor_bus_type); |
d3953223 SN |
1039 | return -EINVAL; |
1040 | } | |
1041 | if (source == NULL) | |
1042 | continue; | |
1043 | ||
d0da3c35 | 1044 | link_mask = 1 << fimc_id++; |
4af81310 | 1045 | ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor, |
d0da3c35 | 1046 | pad, link_mask); |
4af81310 SN |
1047 | } |
1048 | ||
a8697ec8 | 1049 | for (i = 0; i < CSIS_MAX_ENTITIES; i++) { |
4af81310 SN |
1050 | if (fmd->csis[i].sd == NULL) |
1051 | continue; | |
f998bb7b | 1052 | |
4af81310 SN |
1053 | source = &fmd->csis[i].sd->entity; |
1054 | pad = CSIS_PAD_SOURCE; | |
5d33ee92 | 1055 | sensor = csi_sensors[i]; |
4af81310 | 1056 | |
d0da3c35 | 1057 | link_mask = 1 << fimc_id++; |
5d33ee92 | 1058 | ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor, |
d0da3c35 | 1059 | pad, link_mask); |
d3953223 | 1060 | } |
4af81310 | 1061 | |
237e0265 SN |
1062 | /* Create immutable links between each FIMC's subdev and video node */ |
1063 | flags = MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED; | |
1064 | for (i = 0; i < FIMC_MAX_DEVS; i++) { | |
1065 | if (!fmd->fimc[i]) | |
1066 | continue; | |
f998bb7b | 1067 | |
693f5c40 | 1068 | source = &fmd->fimc[i]->vid_cap.subdev.entity; |
bc7584b0 | 1069 | sink = &fmd->fimc[i]->vid_cap.ve.vdev.entity; |
f998bb7b | 1070 | |
237e0265 SN |
1071 | ret = media_entity_create_link(source, FIMC_SD_PAD_SOURCE, |
1072 | sink, 0, flags); | |
1073 | if (ret) | |
1074 | break; | |
1075 | } | |
1076 | ||
f998bb7b SN |
1077 | ret = __fimc_md_create_flite_source_links(fmd); |
1078 | if (ret < 0) | |
1079 | return ret; | |
1080 | ||
1081 | if (fmd->use_isp) | |
1082 | ret = __fimc_md_create_fimc_is_links(fmd); | |
1083 | ||
1084 | return ret; | |
d3953223 SN |
1085 | } |
1086 | ||
1087 | /* | |
056f4f30 | 1088 | * The peripheral sensor and CAM_BLK (PIXELASYNCMx) clocks management. |
d3953223 | 1089 | */ |
0e23cbbe SN |
1090 | static void fimc_md_put_clocks(struct fimc_md *fmd) |
1091 | { | |
1092 | int i = FIMC_MAX_CAMCLKS; | |
1093 | ||
1094 | while (--i >= 0) { | |
1095 | if (IS_ERR(fmd->camclk[i].clock)) | |
1096 | continue; | |
1097 | clk_unprepare(fmd->camclk[i].clock); | |
1098 | clk_put(fmd->camclk[i].clock); | |
1099 | fmd->camclk[i].clock = ERR_PTR(-EINVAL); | |
1100 | } | |
056f4f30 SN |
1101 | |
1102 | /* Writeback (PIXELASYNCMx) clocks */ | |
1103 | for (i = 0; i < FIMC_MAX_WBCLKS; i++) { | |
1104 | if (IS_ERR(fmd->wbclk[i])) | |
1105 | continue; | |
1106 | clk_put(fmd->wbclk[i]); | |
1107 | fmd->wbclk[i] = ERR_PTR(-EINVAL); | |
1108 | } | |
0e23cbbe SN |
1109 | } |
1110 | ||
d3953223 SN |
1111 | static int fimc_md_get_clocks(struct fimc_md *fmd) |
1112 | { | |
0e23cbbe | 1113 | struct device *dev = NULL; |
d3953223 SN |
1114 | char clk_name[32]; |
1115 | struct clk *clock; | |
0e23cbbe SN |
1116 | int ret, i; |
1117 | ||
1118 | for (i = 0; i < FIMC_MAX_CAMCLKS; i++) | |
1119 | fmd->camclk[i].clock = ERR_PTR(-EINVAL); | |
1120 | ||
1121 | if (fmd->pdev->dev.of_node) | |
1122 | dev = &fmd->pdev->dev; | |
d3953223 SN |
1123 | |
1124 | for (i = 0; i < FIMC_MAX_CAMCLKS; i++) { | |
1125 | snprintf(clk_name, sizeof(clk_name), "sclk_cam%u", i); | |
0e23cbbe SN |
1126 | clock = clk_get(dev, clk_name); |
1127 | ||
dc3ae328 | 1128 | if (IS_ERR(clock)) { |
0e23cbbe SN |
1129 | dev_err(&fmd->pdev->dev, "Failed to get clock: %s\n", |
1130 | clk_name); | |
1131 | ret = PTR_ERR(clock); | |
1132 | break; | |
1133 | } | |
1134 | ret = clk_prepare(clock); | |
1135 | if (ret < 0) { | |
1136 | clk_put(clock); | |
1137 | fmd->camclk[i].clock = ERR_PTR(-EINVAL); | |
1138 | break; | |
d3953223 SN |
1139 | } |
1140 | fmd->camclk[i].clock = clock; | |
1141 | } | |
0e23cbbe SN |
1142 | if (ret) |
1143 | fimc_md_put_clocks(fmd); | |
d3953223 | 1144 | |
056f4f30 SN |
1145 | if (!fmd->use_isp) |
1146 | return 0; | |
1147 | /* | |
1148 | * For now get only PIXELASYNCM1 clock (Writeback B/ISP), | |
1149 | * leave PIXELASYNCM0 out for the LCD Writeback driver. | |
1150 | */ | |
1151 | fmd->wbclk[CLK_IDX_WB_A] = ERR_PTR(-EINVAL); | |
1152 | ||
1153 | for (i = CLK_IDX_WB_B; i < FIMC_MAX_WBCLKS; i++) { | |
1154 | snprintf(clk_name, sizeof(clk_name), "pxl_async%u", i); | |
1155 | clock = clk_get(dev, clk_name); | |
1156 | if (IS_ERR(clock)) { | |
1157 | v4l2_err(&fmd->v4l2_dev, "Failed to get clock: %s\n", | |
1158 | clk_name); | |
1159 | ret = PTR_ERR(clock); | |
1160 | break; | |
1161 | } | |
1162 | fmd->wbclk[i] = clock; | |
1163 | } | |
1164 | if (ret) | |
1165 | fimc_md_put_clocks(fmd); | |
1166 | ||
0e23cbbe | 1167 | return ret; |
d3953223 SN |
1168 | } |
1169 | ||
1170 | static int __fimc_md_set_camclk(struct fimc_md *fmd, | |
4c8f0629 | 1171 | struct fimc_source_info *si, |
e3fc82e8 | 1172 | bool on) |
d3953223 | 1173 | { |
d3953223 SN |
1174 | struct fimc_camclk_info *camclk; |
1175 | int ret = 0; | |
1176 | ||
4c8f0629 | 1177 | if (WARN_ON(si->clk_id >= FIMC_MAX_CAMCLKS) || !fmd || !fmd->pmf) |
d3953223 SN |
1178 | return -EINVAL; |
1179 | ||
4c8f0629 | 1180 | camclk = &fmd->camclk[si->clk_id]; |
d3953223 | 1181 | |
e3fc82e8 | 1182 | dbg("camclk %d, f: %lu, use_count: %d, on: %d", |
4c8f0629 | 1183 | si->clk_id, si->clk_frequency, camclk->use_count, on); |
d3953223 SN |
1184 | |
1185 | if (on) { | |
1186 | if (camclk->use_count > 0 && | |
4c8f0629 | 1187 | camclk->frequency != si->clk_frequency) |
d3953223 SN |
1188 | return -EINVAL; |
1189 | ||
1190 | if (camclk->use_count++ == 0) { | |
4c8f0629 SN |
1191 | clk_set_rate(camclk->clock, si->clk_frequency); |
1192 | camclk->frequency = si->clk_frequency; | |
3e20c345 SN |
1193 | ret = pm_runtime_get_sync(fmd->pmf); |
1194 | if (ret < 0) | |
1195 | return ret; | |
d3953223 | 1196 | ret = clk_enable(camclk->clock); |
4c8f0629 | 1197 | dbg("Enabled camclk %d: f: %lu", si->clk_id, |
e3fc82e8 | 1198 | clk_get_rate(camclk->clock)); |
d3953223 | 1199 | } |
d3953223 SN |
1200 | return ret; |
1201 | } | |
1202 | ||
1203 | if (WARN_ON(camclk->use_count == 0)) | |
1204 | return 0; | |
1205 | ||
1206 | if (--camclk->use_count == 0) { | |
1207 | clk_disable(camclk->clock); | |
3e20c345 | 1208 | pm_runtime_put(fmd->pmf); |
4c8f0629 | 1209 | dbg("Disabled camclk %d", si->clk_id); |
d3953223 SN |
1210 | } |
1211 | return ret; | |
1212 | } | |
1213 | ||
1214 | /** | |
1215 | * fimc_md_set_camclk - peripheral sensor clock setup | |
1216 | * @sd: sensor subdev to configure sclk_cam clock for | |
1217 | * @on: 1 to enable or 0 to disable the clock | |
1218 | * | |
1219 | * There are 2 separate clock outputs available in the SoC for external | |
1220 | * image processors. These clocks are shared between all registered FIMC | |
1221 | * devices to which sensors can be attached, either directly or through | |
1222 | * the MIPI CSI receiver. The clock is allowed here to be used by | |
1223 | * multiple sensors concurrently if they use same frequency. | |
d3953223 SN |
1224 | * This function should only be called when the graph mutex is held. |
1225 | */ | |
1226 | int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on) | |
1227 | { | |
4c8f0629 | 1228 | struct fimc_source_info *si = v4l2_get_subdev_hostdata(sd); |
d3953223 SN |
1229 | struct fimc_md *fmd = entity_to_fimc_mdev(&sd->entity); |
1230 | ||
4c8f0629 | 1231 | return __fimc_md_set_camclk(fmd, si, on); |
d3953223 SN |
1232 | } |
1233 | ||
1234 | static int fimc_md_link_notify(struct media_pad *source, | |
1235 | struct media_pad *sink, u32 flags) | |
1236 | { | |
4af81310 SN |
1237 | struct fimc_lite *fimc_lite = NULL; |
1238 | struct fimc_dev *fimc = NULL; | |
0f735f52 | 1239 | struct fimc_pipeline *pipeline; |
237e0265 | 1240 | struct v4l2_subdev *sd; |
8c6ecdd7 | 1241 | int i, ret = 0; |
d3953223 | 1242 | |
237e0265 | 1243 | if (media_entity_type(sink->entity) != MEDIA_ENT_T_V4L2_SUBDEV) |
d3953223 SN |
1244 | return 0; |
1245 | ||
237e0265 | 1246 | sd = media_entity_to_v4l2_subdev(sink->entity); |
d3953223 | 1247 | |
0f735f52 | 1248 | switch (sd->grp_id) { |
588c87be | 1249 | case GRP_ID_FLITE: |
4af81310 | 1250 | fimc_lite = v4l2_get_subdevdata(sd); |
740ad921 SN |
1251 | if (WARN_ON(fimc_lite == NULL)) |
1252 | return 0; | |
4af81310 SN |
1253 | pipeline = &fimc_lite->pipeline; |
1254 | break; | |
588c87be | 1255 | case GRP_ID_FIMC: |
0f735f52 | 1256 | fimc = v4l2_get_subdevdata(sd); |
740ad921 SN |
1257 | if (WARN_ON(fimc == NULL)) |
1258 | return 0; | |
0f735f52 SN |
1259 | pipeline = &fimc->pipeline; |
1260 | break; | |
1261 | default: | |
1262 | return 0; | |
1263 | } | |
131b6c61 | 1264 | |
0f735f52 | 1265 | if (!(flags & MEDIA_LNK_FL_ENABLED)) { |
42625fdf | 1266 | if (sink->entity->use_count > 0) { |
8c6ecdd7 | 1267 | ret = __fimc_pipeline_close(pipeline); |
8c6ecdd7 | 1268 | } |
740ad921 SN |
1269 | for (i = 0; i < IDX_MAX; i++) |
1270 | pipeline->subdevs[i] = NULL; | |
42625fdf | 1271 | } else if (sink->entity->use_count > 0) { |
8c6ecdd7 SN |
1272 | /* |
1273 | * Link activation. Enable power of pipeline elements only if | |
1274 | * the pipeline is already in use, i.e. its video node is open. | |
1275 | * Recreate the controls destroyed during the link deactivation. | |
1276 | */ | |
1277 | ret = __fimc_pipeline_open(pipeline, | |
1278 | source->entity, true); | |
d3953223 | 1279 | } |
740ad921 | 1280 | |
d3953223 SN |
1281 | return ret ? -EPIPE : ret; |
1282 | } | |
1283 | ||
1284 | static ssize_t fimc_md_sysfs_show(struct device *dev, | |
1285 | struct device_attribute *attr, char *buf) | |
1286 | { | |
1287 | struct platform_device *pdev = to_platform_device(dev); | |
1288 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1289 | ||
1290 | if (fmd->user_subdev_api) | |
1291 | return strlcpy(buf, "Sub-device API (sub-dev)\n", PAGE_SIZE); | |
1292 | ||
1293 | return strlcpy(buf, "V4L2 video node only API (vid-dev)\n", PAGE_SIZE); | |
1294 | } | |
1295 | ||
1296 | static ssize_t fimc_md_sysfs_store(struct device *dev, | |
1297 | struct device_attribute *attr, | |
1298 | const char *buf, size_t count) | |
1299 | { | |
1300 | struct platform_device *pdev = to_platform_device(dev); | |
1301 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1302 | bool subdev_api; | |
1303 | int i; | |
1304 | ||
1305 | if (!strcmp(buf, "vid-dev\n")) | |
1306 | subdev_api = false; | |
1307 | else if (!strcmp(buf, "sub-dev\n")) | |
1308 | subdev_api = true; | |
1309 | else | |
1310 | return count; | |
1311 | ||
1312 | fmd->user_subdev_api = subdev_api; | |
1313 | for (i = 0; i < FIMC_MAX_DEVS; i++) | |
1314 | if (fmd->fimc[i]) | |
1315 | fmd->fimc[i]->vid_cap.user_subdev_api = subdev_api; | |
1316 | return count; | |
1317 | } | |
1318 | /* | |
1319 | * This device attribute is to select video pipeline configuration method. | |
1320 | * There are following valid values: | |
1321 | * vid-dev - for V4L2 video node API only, subdevice will be configured | |
1322 | * by the host driver. | |
1323 | * sub-dev - for media controller API, subdevs must be configured in user | |
1324 | * space before starting streaming. | |
1325 | */ | |
1326 | static DEVICE_ATTR(subdev_conf_mode, S_IWUSR | S_IRUGO, | |
1327 | fimc_md_sysfs_show, fimc_md_sysfs_store); | |
1328 | ||
4163851f SN |
1329 | static int fimc_md_get_pinctrl(struct fimc_md *fmd) |
1330 | { | |
1331 | struct device *dev = &fmd->pdev->dev; | |
1332 | struct fimc_pinctrl *pctl = &fmd->pinctl; | |
1333 | ||
1334 | pctl->pinctrl = devm_pinctrl_get(dev); | |
1335 | if (IS_ERR(pctl->pinctrl)) | |
1336 | return PTR_ERR(pctl->pinctrl); | |
1337 | ||
1338 | pctl->state_default = pinctrl_lookup_state(pctl->pinctrl, | |
1339 | PINCTRL_STATE_DEFAULT); | |
1340 | if (IS_ERR(pctl->state_default)) | |
1341 | return PTR_ERR(pctl->state_default); | |
1342 | ||
1343 | pctl->state_idle = pinctrl_lookup_state(pctl->pinctrl, | |
1344 | PINCTRL_STATE_IDLE); | |
1345 | return 0; | |
1346 | } | |
1347 | ||
ecd9acbf | 1348 | static int fimc_md_probe(struct platform_device *pdev) |
d3953223 | 1349 | { |
e2985a26 | 1350 | struct device *dev = &pdev->dev; |
d3953223 SN |
1351 | struct v4l2_device *v4l2_dev; |
1352 | struct fimc_md *fmd; | |
1353 | int ret; | |
1354 | ||
e2985a26 | 1355 | fmd = devm_kzalloc(dev, sizeof(*fmd), GFP_KERNEL); |
d3953223 SN |
1356 | if (!fmd) |
1357 | return -ENOMEM; | |
1358 | ||
1359 | spin_lock_init(&fmd->slock); | |
1360 | fmd->pdev = pdev; | |
1361 | ||
1362 | strlcpy(fmd->media_dev.model, "SAMSUNG S5P FIMC", | |
1363 | sizeof(fmd->media_dev.model)); | |
1364 | fmd->media_dev.link_notify = fimc_md_link_notify; | |
e2985a26 | 1365 | fmd->media_dev.dev = dev; |
d3953223 SN |
1366 | |
1367 | v4l2_dev = &fmd->v4l2_dev; | |
1368 | v4l2_dev->mdev = &fmd->media_dev; | |
e1d72f4d | 1369 | v4l2_dev->notify = fimc_sensor_notify; |
e2985a26 | 1370 | strlcpy(v4l2_dev->name, "s5p-fimc-md", sizeof(v4l2_dev->name)); |
d3953223 | 1371 | |
e781bbe3 SN |
1372 | fmd->use_isp = fimc_md_is_isp_available(dev->of_node); |
1373 | ||
e2985a26 | 1374 | ret = v4l2_device_register(dev, &fmd->v4l2_dev); |
d3953223 SN |
1375 | if (ret < 0) { |
1376 | v4l2_err(v4l2_dev, "Failed to register v4l2_device: %d\n", ret); | |
6d91a51a | 1377 | return ret; |
d3953223 SN |
1378 | } |
1379 | ret = media_device_register(&fmd->media_dev); | |
1380 | if (ret < 0) { | |
1381 | v4l2_err(v4l2_dev, "Failed to register media device: %d\n", ret); | |
693f5c40 | 1382 | goto err_md; |
d3953223 SN |
1383 | } |
1384 | ret = fimc_md_get_clocks(fmd); | |
1385 | if (ret) | |
693f5c40 | 1386 | goto err_clk; |
d3953223 | 1387 | |
e2985a26 | 1388 | fmd->user_subdev_api = (dev->of_node != NULL); |
693f5c40 SN |
1389 | |
1390 | /* Protect the media graph while we're registering entities */ | |
1391 | mutex_lock(&fmd->media_dev.graph_mutex); | |
1392 | ||
4163851f SN |
1393 | ret = fimc_md_get_pinctrl(fmd); |
1394 | if (ret < 0) { | |
1395 | if (ret != EPROBE_DEFER) | |
1396 | dev_err(dev, "Failed to get pinctrl: %d\n", ret); | |
1397 | goto err_unlock; | |
1398 | } | |
1399 | ||
e2985a26 SN |
1400 | if (dev->of_node) |
1401 | ret = fimc_md_register_of_platform_entities(fmd, dev->of_node); | |
1402 | else | |
1403 | ret = bus_for_each_dev(&platform_bus_type, NULL, fmd, | |
1404 | fimc_md_pdev_match); | |
d3953223 | 1405 | if (ret) |
693f5c40 | 1406 | goto err_unlock; |
d3953223 | 1407 | |
2b13f7d4 | 1408 | if (dev->platform_data || dev->of_node) { |
5cbf6f16 SN |
1409 | ret = fimc_md_register_sensor_entities(fmd); |
1410 | if (ret) | |
693f5c40 | 1411 | goto err_unlock; |
5cbf6f16 | 1412 | } |
e2985a26 | 1413 | |
d3953223 SN |
1414 | ret = fimc_md_create_links(fmd); |
1415 | if (ret) | |
693f5c40 | 1416 | goto err_unlock; |
d3953223 SN |
1417 | ret = v4l2_device_register_subdev_nodes(&fmd->v4l2_dev); |
1418 | if (ret) | |
693f5c40 | 1419 | goto err_unlock; |
d3953223 SN |
1420 | |
1421 | ret = device_create_file(&pdev->dev, &dev_attr_subdev_conf_mode); | |
693f5c40 SN |
1422 | if (ret) |
1423 | goto err_unlock; | |
1424 | ||
1425 | platform_set_drvdata(pdev, fmd); | |
1426 | mutex_unlock(&fmd->media_dev.graph_mutex); | |
1427 | return 0; | |
1428 | ||
1429 | err_unlock: | |
1430 | mutex_unlock(&fmd->media_dev.graph_mutex); | |
1431 | err_clk: | |
d3953223 SN |
1432 | media_device_unregister(&fmd->media_dev); |
1433 | fimc_md_put_clocks(fmd); | |
1434 | fimc_md_unregister_entities(fmd); | |
693f5c40 | 1435 | err_md: |
d3953223 | 1436 | v4l2_device_unregister(&fmd->v4l2_dev); |
d3953223 SN |
1437 | return ret; |
1438 | } | |
1439 | ||
4c62e976 | 1440 | static int fimc_md_remove(struct platform_device *pdev) |
d3953223 SN |
1441 | { |
1442 | struct fimc_md *fmd = platform_get_drvdata(pdev); | |
1443 | ||
1444 | if (!fmd) | |
1445 | return 0; | |
1446 | device_remove_file(&pdev->dev, &dev_attr_subdev_conf_mode); | |
1447 | fimc_md_unregister_entities(fmd); | |
1448 | media_device_unregister(&fmd->media_dev); | |
1449 | fimc_md_put_clocks(fmd); | |
d3953223 SN |
1450 | return 0; |
1451 | } | |
1452 | ||
e2985a26 SN |
1453 | static struct platform_device_id fimc_driver_ids[] __always_unused = { |
1454 | { .name = "s5p-fimc-md" }, | |
1455 | { }, | |
1456 | }; | |
1457 | MODULE_DEVICE_TABLE(platform, fimc_driver_ids); | |
1458 | ||
1459 | static const struct of_device_id fimc_md_of_match[] = { | |
1460 | { .compatible = "samsung,fimc" }, | |
1461 | { }, | |
1462 | }; | |
1463 | MODULE_DEVICE_TABLE(of, fimc_md_of_match); | |
1464 | ||
d3953223 SN |
1465 | static struct platform_driver fimc_md_driver = { |
1466 | .probe = fimc_md_probe, | |
4c62e976 | 1467 | .remove = fimc_md_remove, |
d3953223 | 1468 | .driver = { |
e2985a26 SN |
1469 | .of_match_table = of_match_ptr(fimc_md_of_match), |
1470 | .name = "s5p-fimc-md", | |
1471 | .owner = THIS_MODULE, | |
d3953223 SN |
1472 | } |
1473 | }; | |
1474 | ||
7e566be2 | 1475 | static int __init fimc_md_init(void) |
d3953223 SN |
1476 | { |
1477 | int ret; | |
ecd9acbf | 1478 | |
d3953223 SN |
1479 | request_module("s5p-csis"); |
1480 | ret = fimc_register_driver(); | |
1481 | if (ret) | |
1482 | return ret; | |
ecd9acbf | 1483 | |
d3953223 SN |
1484 | return platform_driver_register(&fimc_md_driver); |
1485 | } | |
7e566be2 SK |
1486 | |
1487 | static void __exit fimc_md_exit(void) | |
d3953223 SN |
1488 | { |
1489 | platform_driver_unregister(&fimc_md_driver); | |
1490 | fimc_unregister_driver(); | |
1491 | } | |
1492 | ||
1493 | module_init(fimc_md_init); | |
1494 | module_exit(fimc_md_exit); | |
1495 | ||
1496 | MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>"); | |
1497 | MODULE_DESCRIPTION("S5P FIMC camera host interface/video postprocessor driver"); | |
1498 | MODULE_LICENSE("GPL"); | |
1499 | MODULE_VERSION("2.0.1"); |