Commit | Line | Data |
---|---|---|
d927fdae | 1 | /* |
a4b12990 | 2 | * sst_mfld_platform.c - Intel MID Platform driver |
d927fdae | 3 | * |
0cd5751a | 4 | * Copyright (C) 2010-2013 Intel Corp |
d927fdae VK |
5 | * Author: Vinod Koul <vinod.koul@intel.com> |
6 | * Author: Harsha Priya <priya.harsha@intel.com> | |
7 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; version 2 of the License. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, but | |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | * | |
d927fdae | 18 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
d927fdae VK |
19 | */ |
20 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt | |
21 | ||
22 | #include <linux/slab.h> | |
23 | #include <linux/io.h> | |
da155d5b | 24 | #include <linux/module.h> |
d927fdae VK |
25 | #include <sound/core.h> |
26 | #include <sound/pcm.h> | |
27 | #include <sound/pcm_params.h> | |
28 | #include <sound/soc.h> | |
c514a911 | 29 | #include <sound/compress_driver.h> |
a4b12990 | 30 | #include "sst-mfld-platform.h" |
d927fdae | 31 | |
4b68b4e1 | 32 | struct sst_device *sst; |
03c33042 | 33 | static DEFINE_MUTEX(sst_lock); |
4b68b4e1 | 34 | extern struct snd_compr_ops sst_platform_compr_ops; |
03c33042 VK |
35 | |
36 | int sst_register_dsp(struct sst_device *dev) | |
37 | { | |
656a22a1 TI |
38 | if (WARN_ON(!dev)) |
39 | return -EINVAL; | |
03c33042 VK |
40 | if (!try_module_get(dev->dev->driver->owner)) |
41 | return -ENODEV; | |
42 | mutex_lock(&sst_lock); | |
43 | if (sst) { | |
44 | pr_err("we already have a device %s\n", sst->name); | |
45 | module_put(dev->dev->driver->owner); | |
46 | mutex_unlock(&sst_lock); | |
47 | return -EEXIST; | |
48 | } | |
49 | pr_debug("registering device %s\n", dev->name); | |
50 | sst = dev; | |
51 | mutex_unlock(&sst_lock); | |
52 | return 0; | |
53 | } | |
54 | EXPORT_SYMBOL_GPL(sst_register_dsp); | |
55 | ||
56 | int sst_unregister_dsp(struct sst_device *dev) | |
57 | { | |
656a22a1 TI |
58 | if (WARN_ON(!dev)) |
59 | return -EINVAL; | |
03c33042 VK |
60 | if (dev != sst) |
61 | return -EINVAL; | |
62 | ||
63 | mutex_lock(&sst_lock); | |
64 | ||
65 | if (!sst) { | |
66 | mutex_unlock(&sst_lock); | |
67 | return -EIO; | |
68 | } | |
69 | ||
70 | module_put(sst->dev->driver->owner); | |
71 | pr_debug("unreg %s\n", sst->name); | |
72 | sst = NULL; | |
73 | mutex_unlock(&sst_lock); | |
74 | return 0; | |
75 | } | |
76 | EXPORT_SYMBOL_GPL(sst_unregister_dsp); | |
77 | ||
d927fdae VK |
78 | static struct snd_pcm_hardware sst_platform_pcm_hw = { |
79 | .info = (SNDRV_PCM_INFO_INTERLEAVED | | |
80 | SNDRV_PCM_INFO_DOUBLE | | |
81 | SNDRV_PCM_INFO_PAUSE | | |
82 | SNDRV_PCM_INFO_RESUME | | |
83 | SNDRV_PCM_INFO_MMAP| | |
84 | SNDRV_PCM_INFO_MMAP_VALID | | |
85 | SNDRV_PCM_INFO_BLOCK_TRANSFER | | |
86 | SNDRV_PCM_INFO_SYNC_START), | |
d927fdae VK |
87 | .buffer_bytes_max = SST_MAX_BUFFER, |
88 | .period_bytes_min = SST_MIN_PERIOD_BYTES, | |
89 | .period_bytes_max = SST_MAX_PERIOD_BYTES, | |
90 | .periods_min = SST_MIN_PERIODS, | |
91 | .periods_max = SST_MAX_PERIODS, | |
92 | .fifo_size = SST_FIFO_SIZE, | |
93 | }; | |
94 | ||
95 | /* MFLD - MSIC */ | |
d1b73287 | 96 | static struct snd_soc_dai_driver sst_platform_dai[] = { |
d927fdae | 97 | { |
5106f5a1 | 98 | .name = "Headset-cpu-dai", |
d927fdae VK |
99 | .id = 0, |
100 | .playback = { | |
101 | .channels_min = SST_STEREO, | |
102 | .channels_max = SST_STEREO, | |
103 | .rates = SNDRV_PCM_RATE_48000, | |
104 | .formats = SNDRV_PCM_FMTBIT_S24_LE, | |
105 | }, | |
a7bffdf7 HP |
106 | .capture = { |
107 | .channels_min = 1, | |
108 | .channels_max = 5, | |
109 | .rates = SNDRV_PCM_RATE_48000, | |
110 | .formats = SNDRV_PCM_FMTBIT_S24_LE, | |
d927fdae VK |
111 | }, |
112 | }, | |
c514a911 VK |
113 | { |
114 | .name = "Compress-cpu-dai", | |
115 | .compress_dai = 1, | |
116 | .playback = { | |
117 | .channels_min = SST_STEREO, | |
118 | .channels_max = SST_STEREO, | |
119 | .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000, | |
120 | .formats = SNDRV_PCM_FMTBIT_S16_LE, | |
121 | }, | |
122 | }, | |
d927fdae | 123 | }; |
5c68536f | 124 | |
d927fdae | 125 | /* helper functions */ |
4496ffab | 126 | void sst_set_stream_status(struct sst_runtime_stream *stream, |
5c68536f HP |
127 | int state) |
128 | { | |
d89b0a13 LG |
129 | unsigned long flags; |
130 | spin_lock_irqsave(&stream->status_lock, flags); | |
5c68536f | 131 | stream->stream_status = state; |
d89b0a13 | 132 | spin_unlock_irqrestore(&stream->status_lock, flags); |
5c68536f HP |
133 | } |
134 | ||
135 | static inline int sst_get_stream_status(struct sst_runtime_stream *stream) | |
136 | { | |
137 | int state; | |
d89b0a13 | 138 | unsigned long flags; |
5c68536f | 139 | |
d89b0a13 | 140 | spin_lock_irqsave(&stream->status_lock, flags); |
5c68536f | 141 | state = stream->stream_status; |
d89b0a13 | 142 | spin_unlock_irqrestore(&stream->status_lock, flags); |
5c68536f HP |
143 | return state; |
144 | } | |
145 | ||
146 | static void sst_fill_pcm_params(struct snd_pcm_substream *substream, | |
03c33042 | 147 | struct sst_pcm_params *param) |
5c68536f HP |
148 | { |
149 | ||
03c33042 VK |
150 | param->num_chan = (u8) substream->runtime->channels; |
151 | param->pcm_wd_sz = substream->runtime->sample_bits; | |
152 | param->reserved = 0; | |
153 | param->sfreq = substream->runtime->rate; | |
154 | param->ring_buffer_size = snd_pcm_lib_buffer_bytes(substream); | |
155 | param->period_count = substream->runtime->period_size; | |
156 | param->ring_buffer_addr = virt_to_phys(substream->dma_buffer.area); | |
157 | pr_debug("period_cnt = %d\n", param->period_count); | |
158 | pr_debug("sfreq= %d, wd_sz = %d\n", param->sfreq, param->pcm_wd_sz); | |
5c68536f HP |
159 | } |
160 | ||
d927fdae VK |
161 | static int sst_platform_alloc_stream(struct snd_pcm_substream *substream) |
162 | { | |
163 | struct sst_runtime_stream *stream = | |
164 | substream->runtime->private_data; | |
03c33042 VK |
165 | struct sst_pcm_params param = {0}; |
166 | struct sst_stream_params str_params = {0}; | |
d927fdae VK |
167 | int ret_val; |
168 | ||
169 | /* set codec params and inform SST driver the same */ | |
5c68536f | 170 | sst_fill_pcm_params(substream, ¶m); |
d927fdae | 171 | substream->runtime->dma_area = substream->dma_buffer.area; |
d927fdae | 172 | str_params.sparams = param; |
03c33042 | 173 | str_params.codec = param.codec; |
d927fdae VK |
174 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) { |
175 | str_params.ops = STREAM_OPS_PLAYBACK; | |
176 | str_params.device_type = substream->pcm->device + 1; | |
177 | pr_debug("Playbck stream,Device %d\n", | |
178 | substream->pcm->device); | |
179 | } else { | |
180 | str_params.ops = STREAM_OPS_CAPTURE; | |
181 | str_params.device_type = SND_SST_DEVICE_CAPTURE; | |
182 | pr_debug("Capture stream,Device %d\n", | |
183 | substream->pcm->device); | |
184 | } | |
03c33042 | 185 | ret_val = stream->ops->open(&str_params); |
d927fdae VK |
186 | pr_debug("SST_SND_PLAY/CAPTURE ret_val = %x\n", ret_val); |
187 | if (ret_val < 0) | |
188 | return ret_val; | |
189 | ||
190 | stream->stream_info.str_id = ret_val; | |
191 | pr_debug("str id : %d\n", stream->stream_info.str_id); | |
d927fdae VK |
192 | return ret_val; |
193 | } | |
194 | ||
9daa5bd3 | 195 | static void sst_period_elapsed(void *arg) |
d927fdae | 196 | { |
9daa5bd3 | 197 | struct snd_pcm_substream *substream = arg; |
d927fdae | 198 | struct sst_runtime_stream *stream; |
5c68536f | 199 | int status; |
d927fdae VK |
200 | |
201 | if (!substream || !substream->runtime) | |
202 | return; | |
203 | stream = substream->runtime->private_data; | |
204 | if (!stream) | |
205 | return; | |
5c68536f HP |
206 | status = sst_get_stream_status(stream); |
207 | if (status != SST_PLATFORM_RUNNING) | |
d927fdae | 208 | return; |
d927fdae | 209 | snd_pcm_period_elapsed(substream); |
d927fdae VK |
210 | } |
211 | ||
212 | static int sst_platform_init_stream(struct snd_pcm_substream *substream) | |
213 | { | |
214 | struct sst_runtime_stream *stream = | |
215 | substream->runtime->private_data; | |
216 | int ret_val; | |
217 | ||
218 | pr_debug("setting buffer ptr param\n"); | |
5c68536f | 219 | sst_set_stream_status(stream, SST_PLATFORM_INIT); |
d927fdae | 220 | stream->stream_info.period_elapsed = sst_period_elapsed; |
9daa5bd3 | 221 | stream->stream_info.arg = substream; |
d927fdae VK |
222 | stream->stream_info.buffer_ptr = 0; |
223 | stream->stream_info.sfreq = substream->runtime->rate; | |
03c33042 | 224 | ret_val = stream->ops->device_control( |
a211701e | 225 | SST_SND_STREAM_INIT, &stream->stream_info); |
d927fdae VK |
226 | if (ret_val) |
227 | pr_err("control_set ret error %d\n", ret_val); | |
228 | return ret_val; | |
229 | ||
230 | } | |
231 | /* end -- helper functions */ | |
232 | ||
6cc0f4e6 VK |
233 | static int sst_media_open(struct snd_pcm_substream *substream, |
234 | struct snd_soc_dai *dai) | |
d927fdae | 235 | { |
6cc0f4e6 | 236 | int ret_val = 0; |
22be504a | 237 | struct snd_pcm_runtime *runtime = substream->runtime; |
d927fdae | 238 | struct sst_runtime_stream *stream; |
22be504a | 239 | |
d927fdae VK |
240 | stream = kzalloc(sizeof(*stream), GFP_KERNEL); |
241 | if (!stream) | |
242 | return -ENOMEM; | |
d927fdae | 243 | spin_lock_init(&stream->status_lock); |
03c33042 VK |
244 | |
245 | /* get the sst ops */ | |
246 | mutex_lock(&sst_lock); | |
6cc0f4e6 VK |
247 | if (!sst || |
248 | !try_module_get(sst->dev->driver->owner)) { | |
03c33042 | 249 | pr_err("no device available to run\n"); |
6cc0f4e6 VK |
250 | ret_val = -ENODEV; |
251 | goto out_ops; | |
d927fdae | 252 | } |
03c33042 VK |
253 | stream->ops = sst->ops; |
254 | mutex_unlock(&sst_lock); | |
255 | ||
256 | stream->stream_info.str_id = 0; | |
6cc0f4e6 | 257 | |
9daa5bd3 | 258 | stream->stream_info.arg = substream; |
03c33042 | 259 | /* allocate memory for SST API set */ |
d927fdae | 260 | runtime->private_data = stream; |
283e42e0 | 261 | |
6cc0f4e6 VK |
262 | /* Make sure, that the period size is always even */ |
263 | snd_pcm_hw_constraint_step(substream->runtime, 0, | |
264 | SNDRV_PCM_HW_PARAM_PERIODS, 2); | |
265 | ||
266 | return snd_pcm_hw_constraint_integer(runtime, | |
267 | SNDRV_PCM_HW_PARAM_PERIODS); | |
268 | out_ops: | |
269 | kfree(stream); | |
270 | mutex_unlock(&sst_lock); | |
271 | return ret_val; | |
d927fdae VK |
272 | } |
273 | ||
6cc0f4e6 VK |
274 | static void sst_media_close(struct snd_pcm_substream *substream, |
275 | struct snd_soc_dai *dai) | |
d927fdae VK |
276 | { |
277 | struct sst_runtime_stream *stream; | |
278 | int ret_val = 0, str_id; | |
279 | ||
d927fdae VK |
280 | stream = substream->runtime->private_data; |
281 | str_id = stream->stream_info.str_id; | |
d927fdae | 282 | if (str_id) |
03c33042 VK |
283 | ret_val = stream->ops->close(str_id); |
284 | module_put(sst->dev->driver->owner); | |
d927fdae | 285 | kfree(stream); |
6cc0f4e6 | 286 | return; |
d927fdae VK |
287 | } |
288 | ||
6cc0f4e6 VK |
289 | static int sst_media_prepare(struct snd_pcm_substream *substream, |
290 | struct snd_soc_dai *dai) | |
d927fdae VK |
291 | { |
292 | struct sst_runtime_stream *stream; | |
293 | int ret_val = 0, str_id; | |
294 | ||
d927fdae VK |
295 | stream = substream->runtime->private_data; |
296 | str_id = stream->stream_info.str_id; | |
297 | if (stream->stream_info.str_id) { | |
03c33042 VK |
298 | ret_val = stream->ops->device_control( |
299 | SST_SND_DROP, &str_id); | |
d927fdae VK |
300 | return ret_val; |
301 | } | |
302 | ||
303 | ret_val = sst_platform_alloc_stream(substream); | |
304 | if (ret_val < 0) | |
305 | return ret_val; | |
306 | snprintf(substream->pcm->id, sizeof(substream->pcm->id), | |
307 | "%d", stream->stream_info.str_id); | |
308 | ||
309 | ret_val = sst_platform_init_stream(substream); | |
310 | if (ret_val) | |
311 | return ret_val; | |
312 | substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER; | |
313 | return ret_val; | |
314 | } | |
315 | ||
6cc0f4e6 VK |
316 | static int sst_media_hw_params(struct snd_pcm_substream *substream, |
317 | struct snd_pcm_hw_params *params, | |
318 | struct snd_soc_dai *dai) | |
319 | { | |
320 | snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); | |
321 | memset(substream->runtime->dma_area, 0, params_buffer_bytes(params)); | |
322 | return 0; | |
323 | } | |
324 | ||
325 | static int sst_media_hw_free(struct snd_pcm_substream *substream, | |
326 | struct snd_soc_dai *dai) | |
327 | { | |
328 | return snd_pcm_lib_free_pages(substream); | |
329 | } | |
330 | ||
331 | static struct snd_soc_dai_ops sst_media_dai_ops = { | |
332 | .startup = sst_media_open, | |
333 | .shutdown = sst_media_close, | |
334 | .prepare = sst_media_prepare, | |
335 | .hw_params = sst_media_hw_params, | |
336 | .hw_free = sst_media_hw_free, | |
337 | }; | |
338 | ||
339 | static int sst_platform_open(struct snd_pcm_substream *substream) | |
340 | { | |
341 | struct snd_pcm_runtime *runtime; | |
342 | ||
343 | if (substream->pcm->internal) | |
344 | return 0; | |
345 | ||
346 | runtime = substream->runtime; | |
347 | runtime->hw = sst_platform_pcm_hw; | |
348 | return 0; | |
349 | } | |
350 | ||
5106f5a1 | 351 | static int sst_platform_pcm_trigger(struct snd_pcm_substream *substream, |
d927fdae VK |
352 | int cmd) |
353 | { | |
354 | int ret_val = 0, str_id; | |
355 | struct sst_runtime_stream *stream; | |
a211701e | 356 | int str_cmd, status; |
d927fdae | 357 | |
5106f5a1 | 358 | pr_debug("sst_platform_pcm_trigger called\n"); |
d927fdae | 359 | stream = substream->runtime->private_data; |
d927fdae | 360 | str_id = stream->stream_info.str_id; |
d927fdae VK |
361 | switch (cmd) { |
362 | case SNDRV_PCM_TRIGGER_START: | |
363 | pr_debug("sst: Trigger Start\n"); | |
a211701e HP |
364 | str_cmd = SST_SND_START; |
365 | status = SST_PLATFORM_RUNNING; | |
9daa5bd3 | 366 | stream->stream_info.arg = substream; |
d927fdae VK |
367 | break; |
368 | case SNDRV_PCM_TRIGGER_STOP: | |
369 | pr_debug("sst: in stop\n"); | |
a211701e HP |
370 | str_cmd = SST_SND_DROP; |
371 | status = SST_PLATFORM_DROPPED; | |
d927fdae VK |
372 | break; |
373 | case SNDRV_PCM_TRIGGER_PAUSE_PUSH: | |
374 | pr_debug("sst: in pause\n"); | |
a211701e HP |
375 | str_cmd = SST_SND_PAUSE; |
376 | status = SST_PLATFORM_PAUSED; | |
d927fdae VK |
377 | break; |
378 | case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: | |
379 | pr_debug("sst: in pause release\n"); | |
a211701e HP |
380 | str_cmd = SST_SND_RESUME; |
381 | status = SST_PLATFORM_RUNNING; | |
d927fdae VK |
382 | break; |
383 | default: | |
a211701e | 384 | return -EINVAL; |
d927fdae | 385 | } |
03c33042 | 386 | ret_val = stream->ops->device_control(str_cmd, &str_id); |
a211701e HP |
387 | if (!ret_val) |
388 | sst_set_stream_status(stream, status); | |
389 | ||
d927fdae VK |
390 | return ret_val; |
391 | } | |
392 | ||
393 | ||
5106f5a1 | 394 | static snd_pcm_uframes_t sst_platform_pcm_pointer |
d927fdae VK |
395 | (struct snd_pcm_substream *substream) |
396 | { | |
397 | struct sst_runtime_stream *stream; | |
5c68536f | 398 | int ret_val, status; |
d927fdae VK |
399 | struct pcm_stream_info *str_info; |
400 | ||
d927fdae | 401 | stream = substream->runtime->private_data; |
5c68536f HP |
402 | status = sst_get_stream_status(stream); |
403 | if (status == SST_PLATFORM_INIT) | |
d927fdae | 404 | return 0; |
d927fdae | 405 | str_info = &stream->stream_info; |
03c33042 | 406 | ret_val = stream->ops->device_control( |
d927fdae VK |
407 | SST_SND_BUFFER_POINTER, str_info); |
408 | if (ret_val) { | |
409 | pr_err("sst: error code = %d\n", ret_val); | |
410 | return ret_val; | |
411 | } | |
2a635825 | 412 | substream->runtime->delay = str_info->pcm_delay; |
6cc0f4e6 | 413 | return str_info->buffer_ptr; |
9ab88434 | 414 | } |
415 | ||
d927fdae | 416 | static struct snd_pcm_ops sst_platform_ops = { |
5106f5a1 | 417 | .open = sst_platform_open, |
d927fdae | 418 | .ioctl = snd_pcm_lib_ioctl, |
5106f5a1 VK |
419 | .trigger = sst_platform_pcm_trigger, |
420 | .pointer = sst_platform_pcm_pointer, | |
d927fdae VK |
421 | }; |
422 | ||
423 | static void sst_pcm_free(struct snd_pcm *pcm) | |
424 | { | |
425 | pr_debug("sst_pcm_free called\n"); | |
426 | snd_pcm_lib_preallocate_free_for_all(pcm); | |
427 | } | |
428 | ||
8faa8c1a | 429 | static int sst_pcm_new(struct snd_soc_pcm_runtime *rtd) |
d927fdae | 430 | { |
6cc0f4e6 | 431 | struct snd_soc_dai *dai = rtd->cpu_dai; |
552d1ef6 | 432 | struct snd_pcm *pcm = rtd->pcm; |
d927fdae VK |
433 | int retval = 0; |
434 | ||
6cc0f4e6 VK |
435 | if (dai->driver->playback.channels_min || |
436 | dai->driver->capture.channels_min) { | |
d927fdae VK |
437 | retval = snd_pcm_lib_preallocate_pages_for_all(pcm, |
438 | SNDRV_DMA_TYPE_CONTINUOUS, | |
6cc0f4e6 | 439 | snd_dma_continuous_data(GFP_DMA), |
d927fdae VK |
440 | SST_MIN_BUFFER, SST_MAX_BUFFER); |
441 | if (retval) { | |
442 | pr_err("dma buffer allocationf fail\n"); | |
443 | return retval; | |
444 | } | |
445 | } | |
d927fdae VK |
446 | return retval; |
447 | } | |
c514a911 | 448 | |
8faa8c1a | 449 | static struct snd_soc_platform_driver sst_soc_platform_drv = { |
d927fdae | 450 | .ops = &sst_platform_ops, |
c514a911 | 451 | .compr_ops = &sst_platform_compr_ops, |
d927fdae VK |
452 | .pcm_new = sst_pcm_new, |
453 | .pcm_free = sst_pcm_free, | |
454 | }; | |
455 | ||
2b4c78df VK |
456 | static const struct snd_soc_component_driver sst_component = { |
457 | .name = "sst", | |
458 | }; | |
459 | ||
460 | ||
d927fdae VK |
461 | static int sst_platform_probe(struct platform_device *pdev) |
462 | { | |
463 | int ret; | |
464 | ||
465 | pr_debug("sst_platform_probe called\n"); | |
03c33042 | 466 | sst = NULL; |
d927fdae VK |
467 | ret = snd_soc_register_platform(&pdev->dev, &sst_soc_platform_drv); |
468 | if (ret) { | |
469 | pr_err("registering soc platform failed\n"); | |
470 | return ret; | |
471 | } | |
5c68536f | 472 | |
b1c36861 | 473 | ret = snd_soc_register_component(&pdev->dev, &sst_component, |
d927fdae VK |
474 | sst_platform_dai, ARRAY_SIZE(sst_platform_dai)); |
475 | if (ret) { | |
476 | pr_err("registering cpu dais failed\n"); | |
477 | snd_soc_unregister_platform(&pdev->dev); | |
478 | } | |
479 | return ret; | |
480 | } | |
481 | ||
482 | static int sst_platform_remove(struct platform_device *pdev) | |
483 | { | |
484 | ||
b1c36861 | 485 | snd_soc_unregister_component(&pdev->dev); |
d927fdae | 486 | snd_soc_unregister_platform(&pdev->dev); |
25985edc | 487 | pr_debug("sst_platform_remove success\n"); |
d927fdae VK |
488 | return 0; |
489 | } | |
490 | ||
491 | static struct platform_driver sst_platform_driver = { | |
492 | .driver = { | |
a4b12990 | 493 | .name = "sst-mfld-platform", |
d927fdae VK |
494 | .owner = THIS_MODULE, |
495 | }, | |
496 | .probe = sst_platform_probe, | |
497 | .remove = sst_platform_remove, | |
498 | }; | |
499 | ||
29515d62 | 500 | module_platform_driver(sst_platform_driver); |
d927fdae VK |
501 | |
502 | MODULE_DESCRIPTION("ASoC Intel(R) MID Platform driver"); | |
503 | MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>"); | |
504 | MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>"); | |
505 | MODULE_LICENSE("GPL v2"); | |
a4b12990 | 506 | MODULE_ALIAS("platform:sst-mfld-platform"); |