1 // SPDX-License-Identifier: GPL-2.0-only
3 * sst_mfld_platform.c - Intel MID Platform driver
5 * Copyright (C) 2010-2014 Intel Corp
6 * Author: Vinod Koul <vinod.koul@intel.com>
7 * Author: Harsha Priya <priya.harsha@intel.com>
8 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
10 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
12 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
14 #include <linux/slab.h>
16 #include <linux/module.h>
17 #include <sound/core.h>
18 #include <sound/pcm.h>
19 #include <sound/pcm_params.h>
20 #include <sound/soc.h>
21 #include <sound/compress_driver.h>
22 #include <asm/platform_sst_audio.h>
23 #include "sst-mfld-platform.h"
24 #include "sst-atom-controls.h"
26 struct sst_device *sst;
27 static DEFINE_MUTEX(sst_lock);
29 int sst_register_dsp(struct sst_device *dev)
33 if (!try_module_get(dev->dev->driver->owner))
35 mutex_lock(&sst_lock);
37 dev_err(dev->dev, "we already have a device %s\n", sst->name);
38 module_put(dev->dev->driver->owner);
39 mutex_unlock(&sst_lock);
42 dev_dbg(dev->dev, "registering device %s\n", dev->name);
44 mutex_unlock(&sst_lock);
47 EXPORT_SYMBOL_GPL(sst_register_dsp);
49 int sst_unregister_dsp(struct sst_device *dev)
56 mutex_lock(&sst_lock);
59 mutex_unlock(&sst_lock);
63 module_put(sst->dev->driver->owner);
64 dev_dbg(dev->dev, "unreg %s\n", sst->name);
66 mutex_unlock(&sst_lock);
69 EXPORT_SYMBOL_GPL(sst_unregister_dsp);
71 static const struct snd_pcm_hardware sst_platform_pcm_hw = {
72 .info = (SNDRV_PCM_INFO_INTERLEAVED |
73 SNDRV_PCM_INFO_DOUBLE |
74 SNDRV_PCM_INFO_PAUSE |
75 SNDRV_PCM_INFO_RESUME |
77 SNDRV_PCM_INFO_MMAP_VALID |
78 SNDRV_PCM_INFO_BLOCK_TRANSFER |
79 SNDRV_PCM_INFO_SYNC_START),
80 .buffer_bytes_max = SST_MAX_BUFFER,
81 .period_bytes_min = SST_MIN_PERIOD_BYTES,
82 .period_bytes_max = SST_MAX_PERIOD_BYTES,
83 .periods_min = SST_MIN_PERIODS,
84 .periods_max = SST_MAX_PERIODS,
85 .fifo_size = SST_FIFO_SIZE,
88 static struct sst_dev_stream_map dpcm_strm_map[] = {
89 {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}, /* Reserved, not in use */
90 {MERR_DPCM_AUDIO, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA1_IN, SST_TASK_ID_MEDIA, 0},
91 {MERR_DPCM_COMPR, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA0_IN, SST_TASK_ID_MEDIA, 0},
92 {MERR_DPCM_AUDIO, 0, SNDRV_PCM_STREAM_CAPTURE, PIPE_PCM1_OUT, SST_TASK_ID_MEDIA, 0},
93 {MERR_DPCM_DEEP_BUFFER, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA3_IN, SST_TASK_ID_MEDIA, 0},
96 static int sst_media_digital_mute(struct snd_soc_dai *dai, int mute, int stream)
99 return sst_send_pipe_gains(dai, stream, mute);
102 /* helper functions */
103 void sst_set_stream_status(struct sst_runtime_stream *stream,
107 spin_lock_irqsave(&stream->status_lock, flags);
108 stream->stream_status = state;
109 spin_unlock_irqrestore(&stream->status_lock, flags);
112 static inline int sst_get_stream_status(struct sst_runtime_stream *stream)
117 spin_lock_irqsave(&stream->status_lock, flags);
118 state = stream->stream_status;
119 spin_unlock_irqrestore(&stream->status_lock, flags);
123 static void sst_fill_alloc_params(struct snd_pcm_substream *substream,
124 struct snd_sst_alloc_params_ext *alloc_param)
126 unsigned int channels;
127 snd_pcm_uframes_t period_size;
129 ssize_t buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
130 u32 buffer_addr = virt_to_phys(substream->dma_buffer.area);
132 channels = substream->runtime->channels;
133 period_size = substream->runtime->period_size;
134 periodbytes = samples_to_bytes(substream->runtime, period_size);
135 alloc_param->ring_buf_info[0].addr = buffer_addr;
136 alloc_param->ring_buf_info[0].size = buffer_bytes;
137 alloc_param->sg_count = 1;
138 alloc_param->reserved = 0;
139 alloc_param->frag_size = periodbytes * channels;
142 static void sst_fill_pcm_params(struct snd_pcm_substream *substream,
143 struct snd_sst_stream_params *param)
145 param->uc.pcm_params.num_chan = (u8) substream->runtime->channels;
146 param->uc.pcm_params.pcm_wd_sz = substream->runtime->sample_bits;
147 param->uc.pcm_params.sfreq = substream->runtime->rate;
149 /* PCM stream via ALSA interface */
150 param->uc.pcm_params.use_offload_path = 0;
151 param->uc.pcm_params.reserved2 = 0;
152 memset(param->uc.pcm_params.channel_map, 0, sizeof(u8));
156 static int sst_get_stream_mapping(int dev, int sdev, int dir,
157 struct sst_dev_stream_map *map, int size)
165 /* index 0 is not used in stream map */
166 for (i = 1; i < size; i++) {
167 if ((map[i].dev_num == dev) && (map[i].direction == dir))
173 int sst_fill_stream_params(void *substream,
174 const struct sst_data *ctx, struct snd_sst_params *str_params, bool is_compress)
178 struct sst_dev_stream_map *map;
179 struct snd_pcm_substream *pstream = NULL;
180 struct snd_compr_stream *cstream = NULL;
182 map = ctx->pdata->pdev_strm_map;
183 map_size = ctx->pdata->strm_map_size;
186 cstream = (struct snd_compr_stream *)substream;
188 pstream = (struct snd_pcm_substream *)substream;
190 str_params->stream_type = SST_STREAM_TYPE_MUSIC;
192 /* For pcm streams */
194 index = sst_get_stream_mapping(pstream->pcm->device,
195 pstream->number, pstream->stream,
200 str_params->stream_id = index;
201 str_params->device_type = map[index].device_id;
202 str_params->task = map[index].task_id;
204 str_params->ops = (u8)pstream->stream;
208 index = sst_get_stream_mapping(cstream->device->device,
209 0, cstream->direction,
213 str_params->stream_id = index;
214 str_params->device_type = map[index].device_id;
215 str_params->task = map[index].task_id;
217 str_params->ops = (u8)cstream->direction;
222 static int sst_platform_alloc_stream(struct snd_pcm_substream *substream,
223 struct snd_soc_dai *dai)
225 struct sst_runtime_stream *stream =
226 substream->runtime->private_data;
227 struct snd_sst_stream_params param = {{{0,},},};
228 struct snd_sst_params str_params = {0};
229 struct snd_sst_alloc_params_ext alloc_params = {0};
231 struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
233 /* set codec params and inform SST driver the same */
234 sst_fill_pcm_params(substream, ¶m);
235 sst_fill_alloc_params(substream, &alloc_params);
236 substream->runtime->dma_area = substream->dma_buffer.area;
237 str_params.sparams = param;
238 str_params.aparams = alloc_params;
239 str_params.codec = SST_CODEC_TYPE_PCM;
241 /* fill the device type and stream id to pass to SST driver */
242 ret_val = sst_fill_stream_params(substream, ctx, &str_params, false);
246 stream->stream_info.str_id = str_params.stream_id;
248 ret_val = stream->ops->open(sst->dev, &str_params);
256 static void sst_period_elapsed(void *arg)
258 struct snd_pcm_substream *substream = arg;
259 struct sst_runtime_stream *stream;
262 if (!substream || !substream->runtime)
264 stream = substream->runtime->private_data;
267 status = sst_get_stream_status(stream);
268 if (status != SST_PLATFORM_RUNNING)
270 snd_pcm_period_elapsed(substream);
273 static int sst_platform_init_stream(struct snd_pcm_substream *substream)
275 struct sst_runtime_stream *stream =
276 substream->runtime->private_data;
277 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
280 dev_dbg(rtd->dev, "setting buffer ptr param\n");
281 sst_set_stream_status(stream, SST_PLATFORM_INIT);
282 stream->stream_info.period_elapsed = sst_period_elapsed;
283 stream->stream_info.arg = substream;
284 stream->stream_info.buffer_ptr = 0;
285 stream->stream_info.sfreq = substream->runtime->rate;
286 ret_val = stream->ops->stream_init(sst->dev, &stream->stream_info);
288 dev_err(rtd->dev, "control_set ret error %d\n", ret_val);
293 static int power_up_sst(struct sst_runtime_stream *stream)
295 return stream->ops->power(sst->dev, true);
298 static void power_down_sst(struct sst_runtime_stream *stream)
300 stream->ops->power(sst->dev, false);
303 static int sst_media_open(struct snd_pcm_substream *substream,
304 struct snd_soc_dai *dai)
307 struct snd_pcm_runtime *runtime = substream->runtime;
308 struct sst_runtime_stream *stream;
310 stream = kzalloc(sizeof(*stream), GFP_KERNEL);
313 spin_lock_init(&stream->status_lock);
315 /* get the sst ops */
316 mutex_lock(&sst_lock);
318 !try_module_get(sst->dev->driver->owner)) {
319 dev_err(dai->dev, "no device available to run\n");
323 stream->ops = sst->ops;
324 mutex_unlock(&sst_lock);
326 stream->stream_info.str_id = 0;
328 stream->stream_info.arg = substream;
329 /* allocate memory for SST API set */
330 runtime->private_data = stream;
332 ret_val = power_up_sst(stream);
336 /* Make sure, that the period size is always even */
337 snd_pcm_hw_constraint_step(substream->runtime, 0,
338 SNDRV_PCM_HW_PARAM_PERIODS, 2);
340 return snd_pcm_hw_constraint_integer(runtime,
341 SNDRV_PCM_HW_PARAM_PERIODS);
343 mutex_unlock(&sst_lock);
349 static void sst_media_close(struct snd_pcm_substream *substream,
350 struct snd_soc_dai *dai)
352 struct sst_runtime_stream *stream;
355 stream = substream->runtime->private_data;
356 power_down_sst(stream);
358 str_id = stream->stream_info.str_id;
360 stream->ops->close(sst->dev, str_id);
361 module_put(sst->dev->driver->owner);
365 static int sst_media_prepare(struct snd_pcm_substream *substream,
366 struct snd_soc_dai *dai)
368 struct sst_runtime_stream *stream;
369 int ret_val = 0, str_id;
371 stream = substream->runtime->private_data;
372 str_id = stream->stream_info.str_id;
373 if (stream->stream_info.str_id) {
374 ret_val = stream->ops->stream_drop(sst->dev, str_id);
378 ret_val = sst_platform_alloc_stream(substream, dai);
381 snprintf(substream->pcm->id, sizeof(substream->pcm->id),
382 "%d", stream->stream_info.str_id);
384 ret_val = sst_platform_init_stream(substream);
387 substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER;
391 static int sst_enable_ssp(struct snd_pcm_substream *substream,
392 struct snd_soc_dai *dai)
396 if (!snd_soc_dai_active(dai)) {
397 ret = sst_handle_vb_timer(dai, true);
398 sst_fill_ssp_defaults(dai);
403 static int sst_be_hw_params(struct snd_pcm_substream *substream,
404 struct snd_pcm_hw_params *params,
405 struct snd_soc_dai *dai)
409 if (snd_soc_dai_active(dai) == 1)
410 ret = send_ssp_cmd(dai, dai->name, 1);
414 static int sst_set_format(struct snd_soc_dai *dai, unsigned int fmt)
418 if (!snd_soc_dai_active(dai))
421 ret = sst_fill_ssp_config(dai, fmt);
423 dev_err(dai->dev, "sst_set_format failed..\n");
428 static int sst_platform_set_ssp_slot(struct snd_soc_dai *dai,
429 unsigned int tx_mask, unsigned int rx_mask,
430 int slots, int slot_width) {
433 if (!snd_soc_dai_active(dai))
436 ret = sst_fill_ssp_slot(dai, tx_mask, rx_mask, slots, slot_width);
438 dev_err(dai->dev, "sst_fill_ssp_slot failed..%d\n", ret);
443 static void sst_disable_ssp(struct snd_pcm_substream *substream,
444 struct snd_soc_dai *dai)
446 if (!snd_soc_dai_active(dai)) {
447 send_ssp_cmd(dai, dai->name, 0);
448 sst_handle_vb_timer(dai, false);
452 static const struct snd_soc_dai_ops sst_media_dai_ops = {
453 .startup = sst_media_open,
454 .shutdown = sst_media_close,
455 .prepare = sst_media_prepare,
456 .mute_stream = sst_media_digital_mute,
459 static const struct snd_soc_dai_ops sst_compr_dai_ops = {
460 .mute_stream = sst_media_digital_mute,
463 static const struct snd_soc_dai_ops sst_be_dai_ops = {
464 .startup = sst_enable_ssp,
465 .hw_params = sst_be_hw_params,
466 .set_fmt = sst_set_format,
467 .set_tdm_slot = sst_platform_set_ssp_slot,
468 .shutdown = sst_disable_ssp,
471 static struct snd_soc_dai_driver sst_platform_dai[] = {
473 .name = "media-cpu-dai",
474 .ops = &sst_media_dai_ops,
476 .stream_name = "Headset Playback",
477 .channels_min = SST_STEREO,
478 .channels_max = SST_STEREO,
479 .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000,
480 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
483 .stream_name = "Headset Capture",
486 .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000,
487 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
491 .name = "deepbuffer-cpu-dai",
492 .ops = &sst_media_dai_ops,
494 .stream_name = "Deepbuffer Playback",
495 .channels_min = SST_STEREO,
496 .channels_max = SST_STEREO,
497 .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000,
498 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
502 .name = "compress-cpu-dai",
503 .compress_new = snd_soc_new_compress,
504 .ops = &sst_compr_dai_ops,
506 .stream_name = "Compress Playback",
513 .ops = &sst_be_dai_ops,
515 .stream_name = "ssp0 Tx",
516 .channels_min = SST_STEREO,
517 .channels_max = SST_STEREO,
518 .rates = SNDRV_PCM_RATE_48000,
519 .formats = SNDRV_PCM_FMTBIT_S16_LE,
522 .stream_name = "ssp0 Rx",
523 .channels_min = SST_STEREO,
524 .channels_max = SST_STEREO,
525 .rates = SNDRV_PCM_RATE_48000,
526 .formats = SNDRV_PCM_FMTBIT_S16_LE,
531 .ops = &sst_be_dai_ops,
533 .stream_name = "ssp1 Tx",
534 .channels_min = SST_STEREO,
535 .channels_max = SST_STEREO,
536 .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_48000,
537 .formats = SNDRV_PCM_FMTBIT_S16_LE,
540 .stream_name = "ssp1 Rx",
541 .channels_min = SST_STEREO,
542 .channels_max = SST_STEREO,
543 .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_48000,
544 .formats = SNDRV_PCM_FMTBIT_S16_LE,
549 .ops = &sst_be_dai_ops,
551 .stream_name = "ssp2 Tx",
552 .channels_min = SST_STEREO,
553 .channels_max = SST_STEREO,
554 .rates = SNDRV_PCM_RATE_48000,
555 .formats = SNDRV_PCM_FMTBIT_S16_LE,
558 .stream_name = "ssp2 Rx",
559 .channels_min = SST_STEREO,
560 .channels_max = SST_STEREO,
561 .rates = SNDRV_PCM_RATE_48000,
562 .formats = SNDRV_PCM_FMTBIT_S16_LE,
567 static int sst_soc_open(struct snd_soc_component *component,
568 struct snd_pcm_substream *substream)
570 struct snd_pcm_runtime *runtime;
572 if (substream->pcm->internal)
575 runtime = substream->runtime;
576 runtime->hw = sst_platform_pcm_hw;
580 static int sst_soc_trigger(struct snd_soc_component *component,
581 struct snd_pcm_substream *substream, int cmd)
583 int ret_val = 0, str_id;
584 struct sst_runtime_stream *stream;
586 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
588 dev_dbg(rtd->dev, "%s called\n", __func__);
589 if (substream->pcm->internal)
591 stream = substream->runtime->private_data;
592 str_id = stream->stream_info.str_id;
594 case SNDRV_PCM_TRIGGER_START:
595 dev_dbg(rtd->dev, "sst: Trigger Start\n");
596 status = SST_PLATFORM_RUNNING;
597 stream->stream_info.arg = substream;
598 ret_val = stream->ops->stream_start(sst->dev, str_id);
600 case SNDRV_PCM_TRIGGER_STOP:
601 dev_dbg(rtd->dev, "sst: in stop\n");
602 status = SST_PLATFORM_DROPPED;
603 ret_val = stream->ops->stream_drop(sst->dev, str_id);
605 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
606 case SNDRV_PCM_TRIGGER_SUSPEND:
607 dev_dbg(rtd->dev, "sst: in pause\n");
608 status = SST_PLATFORM_PAUSED;
609 ret_val = stream->ops->stream_pause(sst->dev, str_id);
611 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
612 case SNDRV_PCM_TRIGGER_RESUME:
613 dev_dbg(rtd->dev, "sst: in pause release\n");
614 status = SST_PLATFORM_RUNNING;
615 ret_val = stream->ops->stream_pause_release(sst->dev, str_id);
622 sst_set_stream_status(stream, status);
628 static snd_pcm_uframes_t sst_soc_pointer(struct snd_soc_component *component,
629 struct snd_pcm_substream *substream)
631 struct sst_runtime_stream *stream;
633 struct pcm_stream_info *str_info;
634 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
636 stream = substream->runtime->private_data;
637 status = sst_get_stream_status(stream);
638 if (status == SST_PLATFORM_INIT)
640 str_info = &stream->stream_info;
641 ret_val = stream->ops->stream_read_tstamp(sst->dev, str_info);
643 dev_err(rtd->dev, "sst: error code = %d\n", ret_val);
646 substream->runtime->delay = str_info->pcm_delay;
647 return str_info->buffer_ptr;
650 static int sst_soc_pcm_new(struct snd_soc_component *component,
651 struct snd_soc_pcm_runtime *rtd)
653 struct snd_soc_dai *dai = asoc_rtd_to_cpu(rtd, 0);
654 struct snd_pcm *pcm = rtd->pcm;
656 if (dai->driver->playback.channels_min ||
657 dai->driver->capture.channels_min) {
658 snd_pcm_set_managed_buffer_all(pcm,
659 SNDRV_DMA_TYPE_CONTINUOUS,
660 snd_dma_continuous_data(GFP_DMA),
661 SST_MIN_BUFFER, SST_MAX_BUFFER);
666 static int sst_soc_probe(struct snd_soc_component *component)
668 struct sst_data *drv = dev_get_drvdata(component->dev);
670 drv->soc_card = component->card;
671 return sst_dsp_init_v2_dpcm(component);
674 static void sst_soc_remove(struct snd_soc_component *component)
676 struct sst_data *drv = dev_get_drvdata(component->dev);
678 drv->soc_card = NULL;
681 static const struct snd_soc_component_driver sst_soc_platform_drv = {
683 .probe = sst_soc_probe,
684 .remove = sst_soc_remove,
685 .open = sst_soc_open,
686 .trigger = sst_soc_trigger,
687 .pointer = sst_soc_pointer,
688 .compress_ops = &sst_platform_compress_ops,
689 .pcm_construct = sst_soc_pcm_new,
692 static int sst_platform_probe(struct platform_device *pdev)
694 struct sst_data *drv;
696 struct sst_platform_data *pdata;
698 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
703 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
708 pdata->pdev_strm_map = dpcm_strm_map;
709 pdata->strm_map_size = ARRAY_SIZE(dpcm_strm_map);
712 mutex_init(&drv->lock);
713 dev_set_drvdata(&pdev->dev, drv);
715 ret = devm_snd_soc_register_component(&pdev->dev, &sst_soc_platform_drv,
716 sst_platform_dai, ARRAY_SIZE(sst_platform_dai));
718 dev_err(&pdev->dev, "registering cpu dais failed\n");
723 static int sst_platform_remove(struct platform_device *pdev)
725 dev_dbg(&pdev->dev, "sst_platform_remove success\n");
729 #ifdef CONFIG_PM_SLEEP
731 static int sst_soc_prepare(struct device *dev)
733 struct sst_data *drv = dev_get_drvdata(dev);
734 struct snd_soc_pcm_runtime *rtd;
739 /* suspend all pcms first */
740 snd_soc_suspend(drv->soc_card->dev);
741 snd_soc_poweroff(drv->soc_card->dev);
743 /* set the SSPs to idle */
744 for_each_card_rtds(drv->soc_card, rtd) {
745 struct snd_soc_dai *dai = asoc_rtd_to_cpu(rtd, 0);
747 if (snd_soc_dai_active(dai)) {
748 send_ssp_cmd(dai, dai->name, 0);
749 sst_handle_vb_timer(dai, false);
756 static void sst_soc_complete(struct device *dev)
758 struct sst_data *drv = dev_get_drvdata(dev);
759 struct snd_soc_pcm_runtime *rtd;
765 for_each_card_rtds(drv->soc_card, rtd) {
766 struct snd_soc_dai *dai = asoc_rtd_to_cpu(rtd, 0);
768 if (snd_soc_dai_active(dai)) {
769 sst_handle_vb_timer(dai, true);
770 send_ssp_cmd(dai, dai->name, 1);
773 snd_soc_resume(drv->soc_card->dev);
778 #define sst_soc_prepare NULL
779 #define sst_soc_complete NULL
784 static const struct dev_pm_ops sst_platform_pm = {
785 .prepare = sst_soc_prepare,
786 .complete = sst_soc_complete,
789 static struct platform_driver sst_platform_driver = {
791 .name = "sst-mfld-platform",
792 .pm = &sst_platform_pm,
794 .probe = sst_platform_probe,
795 .remove = sst_platform_remove,
798 module_platform_driver(sst_platform_driver);
800 MODULE_DESCRIPTION("ASoC Intel(R) MID Platform driver");
801 MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
802 MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
803 MODULE_LICENSE("GPL v2");
804 MODULE_ALIAS("platform:sst-atom-hifi2-platform");
805 MODULE_ALIAS("platform:sst-mfld-platform");