2 * sst_mfld_platform.c - Intel MID Platform driver
4 * Copyright (C) 2010-2014 Intel Corp
5 * Author: Vinod Koul <vinod.koul@intel.com>
6 * Author: Harsha Priya <priya.harsha@intel.com>
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.
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.
18 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
22 #include <linux/slab.h>
24 #include <linux/module.h>
25 #include <sound/core.h>
26 #include <sound/pcm.h>
27 #include <sound/pcm_params.h>
28 #include <sound/soc.h>
29 #include <sound/compress_driver.h>
30 #include <asm/platform_sst_audio.h>
31 #include "sst-mfld-platform.h"
32 #include "sst-atom-controls.h"
34 struct sst_device *sst;
35 static DEFINE_MUTEX(sst_lock);
37 int sst_register_dsp(struct sst_device *dev)
41 if (!try_module_get(dev->dev->driver->owner))
43 mutex_lock(&sst_lock);
45 dev_err(dev->dev, "we already have a device %s\n", sst->name);
46 module_put(dev->dev->driver->owner);
47 mutex_unlock(&sst_lock);
50 dev_dbg(dev->dev, "registering device %s\n", dev->name);
52 mutex_unlock(&sst_lock);
55 EXPORT_SYMBOL_GPL(sst_register_dsp);
57 int sst_unregister_dsp(struct sst_device *dev)
64 mutex_lock(&sst_lock);
67 mutex_unlock(&sst_lock);
71 module_put(sst->dev->driver->owner);
72 dev_dbg(dev->dev, "unreg %s\n", sst->name);
74 mutex_unlock(&sst_lock);
77 EXPORT_SYMBOL_GPL(sst_unregister_dsp);
79 static struct snd_pcm_hardware sst_platform_pcm_hw = {
80 .info = (SNDRV_PCM_INFO_INTERLEAVED |
81 SNDRV_PCM_INFO_DOUBLE |
82 SNDRV_PCM_INFO_PAUSE |
83 SNDRV_PCM_INFO_RESUME |
85 SNDRV_PCM_INFO_MMAP_VALID |
86 SNDRV_PCM_INFO_BLOCK_TRANSFER |
87 SNDRV_PCM_INFO_SYNC_START),
88 .buffer_bytes_max = SST_MAX_BUFFER,
89 .period_bytes_min = SST_MIN_PERIOD_BYTES,
90 .period_bytes_max = SST_MAX_PERIOD_BYTES,
91 .periods_min = SST_MIN_PERIODS,
92 .periods_max = SST_MAX_PERIODS,
93 .fifo_size = SST_FIFO_SIZE,
96 static struct sst_dev_stream_map dpcm_strm_map[] = {
97 {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}, /* Reserved, not in use */
98 {MERR_DPCM_AUDIO, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA1_IN, SST_TASK_ID_MEDIA, 0},
99 {MERR_DPCM_COMPR, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA0_IN, SST_TASK_ID_MEDIA, 0},
100 {MERR_DPCM_AUDIO, 0, SNDRV_PCM_STREAM_CAPTURE, PIPE_PCM1_OUT, SST_TASK_ID_MEDIA, 0},
101 {MERR_DPCM_DEEP_BUFFER, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA3_IN, SST_TASK_ID_MEDIA, 0},
104 static int sst_media_digital_mute(struct snd_soc_dai *dai, int mute, int stream)
107 return sst_send_pipe_gains(dai, stream, mute);
110 /* helper functions */
111 void sst_set_stream_status(struct sst_runtime_stream *stream,
115 spin_lock_irqsave(&stream->status_lock, flags);
116 stream->stream_status = state;
117 spin_unlock_irqrestore(&stream->status_lock, flags);
120 static inline int sst_get_stream_status(struct sst_runtime_stream *stream)
125 spin_lock_irqsave(&stream->status_lock, flags);
126 state = stream->stream_status;
127 spin_unlock_irqrestore(&stream->status_lock, flags);
131 static void sst_fill_alloc_params(struct snd_pcm_substream *substream,
132 struct snd_sst_alloc_params_ext *alloc_param)
134 unsigned int channels;
135 snd_pcm_uframes_t period_size;
137 ssize_t buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
138 u32 buffer_addr = virt_to_phys(substream->dma_buffer.area);
140 channels = substream->runtime->channels;
141 period_size = substream->runtime->period_size;
142 periodbytes = samples_to_bytes(substream->runtime, period_size);
143 alloc_param->ring_buf_info[0].addr = buffer_addr;
144 alloc_param->ring_buf_info[0].size = buffer_bytes;
145 alloc_param->sg_count = 1;
146 alloc_param->reserved = 0;
147 alloc_param->frag_size = periodbytes * channels;
150 static void sst_fill_pcm_params(struct snd_pcm_substream *substream,
151 struct snd_sst_stream_params *param)
153 param->uc.pcm_params.num_chan = (u8) substream->runtime->channels;
154 param->uc.pcm_params.pcm_wd_sz = substream->runtime->sample_bits;
155 param->uc.pcm_params.sfreq = substream->runtime->rate;
157 /* PCM stream via ALSA interface */
158 param->uc.pcm_params.use_offload_path = 0;
159 param->uc.pcm_params.reserved2 = 0;
160 memset(param->uc.pcm_params.channel_map, 0, sizeof(u8));
164 static int sst_get_stream_mapping(int dev, int sdev, int dir,
165 struct sst_dev_stream_map *map, int size)
173 /* index 0 is not used in stream map */
174 for (i = 1; i < size; i++) {
175 if ((map[i].dev_num == dev) && (map[i].direction == dir))
181 int sst_fill_stream_params(void *substream,
182 const struct sst_data *ctx, struct snd_sst_params *str_params, bool is_compress)
186 struct sst_dev_stream_map *map;
187 struct snd_pcm_substream *pstream = NULL;
188 struct snd_compr_stream *cstream = NULL;
190 map = ctx->pdata->pdev_strm_map;
191 map_size = ctx->pdata->strm_map_size;
193 if (is_compress == true)
194 cstream = (struct snd_compr_stream *)substream;
196 pstream = (struct snd_pcm_substream *)substream;
198 str_params->stream_type = SST_STREAM_TYPE_MUSIC;
200 /* For pcm streams */
202 index = sst_get_stream_mapping(pstream->pcm->device,
203 pstream->number, pstream->stream,
208 str_params->stream_id = index;
209 str_params->device_type = map[index].device_id;
210 str_params->task = map[index].task_id;
212 str_params->ops = (u8)pstream->stream;
216 index = sst_get_stream_mapping(cstream->device->device,
217 0, cstream->direction,
221 str_params->stream_id = index;
222 str_params->device_type = map[index].device_id;
223 str_params->task = map[index].task_id;
225 str_params->ops = (u8)cstream->direction;
230 static int sst_platform_alloc_stream(struct snd_pcm_substream *substream,
231 struct snd_soc_dai *dai)
233 struct sst_runtime_stream *stream =
234 substream->runtime->private_data;
235 struct snd_sst_stream_params param = {{{0,},},};
236 struct snd_sst_params str_params = {0};
237 struct snd_sst_alloc_params_ext alloc_params = {0};
239 struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
241 /* set codec params and inform SST driver the same */
242 sst_fill_pcm_params(substream, ¶m);
243 sst_fill_alloc_params(substream, &alloc_params);
244 substream->runtime->dma_area = substream->dma_buffer.area;
245 str_params.sparams = param;
246 str_params.aparams = alloc_params;
247 str_params.codec = SST_CODEC_TYPE_PCM;
249 /* fill the device type and stream id to pass to SST driver */
250 ret_val = sst_fill_stream_params(substream, ctx, &str_params, false);
254 stream->stream_info.str_id = str_params.stream_id;
256 ret_val = stream->ops->open(sst->dev, &str_params);
264 static void sst_period_elapsed(void *arg)
266 struct snd_pcm_substream *substream = arg;
267 struct sst_runtime_stream *stream;
270 if (!substream || !substream->runtime)
272 stream = substream->runtime->private_data;
275 status = sst_get_stream_status(stream);
276 if (status != SST_PLATFORM_RUNNING)
278 snd_pcm_period_elapsed(substream);
281 static int sst_platform_init_stream(struct snd_pcm_substream *substream)
283 struct sst_runtime_stream *stream =
284 substream->runtime->private_data;
285 struct snd_soc_pcm_runtime *rtd = substream->private_data;
288 dev_dbg(rtd->dev, "setting buffer ptr param\n");
289 sst_set_stream_status(stream, SST_PLATFORM_INIT);
290 stream->stream_info.period_elapsed = sst_period_elapsed;
291 stream->stream_info.arg = substream;
292 stream->stream_info.buffer_ptr = 0;
293 stream->stream_info.sfreq = substream->runtime->rate;
294 ret_val = stream->ops->stream_init(sst->dev, &stream->stream_info);
296 dev_err(rtd->dev, "control_set ret error %d\n", ret_val);
301 static int power_up_sst(struct sst_runtime_stream *stream)
303 return stream->ops->power(sst->dev, true);
306 static void power_down_sst(struct sst_runtime_stream *stream)
308 stream->ops->power(sst->dev, false);
311 static int sst_media_open(struct snd_pcm_substream *substream,
312 struct snd_soc_dai *dai)
315 struct snd_pcm_runtime *runtime = substream->runtime;
316 struct sst_runtime_stream *stream;
318 stream = kzalloc(sizeof(*stream), GFP_KERNEL);
321 spin_lock_init(&stream->status_lock);
323 /* get the sst ops */
324 mutex_lock(&sst_lock);
326 !try_module_get(sst->dev->driver->owner)) {
327 dev_err(dai->dev, "no device available to run\n");
331 stream->ops = sst->ops;
332 mutex_unlock(&sst_lock);
334 stream->stream_info.str_id = 0;
336 stream->stream_info.arg = substream;
337 /* allocate memory for SST API set */
338 runtime->private_data = stream;
340 ret_val = power_up_sst(stream);
344 /* Make sure, that the period size is always even */
345 snd_pcm_hw_constraint_step(substream->runtime, 0,
346 SNDRV_PCM_HW_PARAM_PERIODS, 2);
348 return snd_pcm_hw_constraint_integer(runtime,
349 SNDRV_PCM_HW_PARAM_PERIODS);
352 mutex_unlock(&sst_lock);
356 static void sst_media_close(struct snd_pcm_substream *substream,
357 struct snd_soc_dai *dai)
359 struct sst_runtime_stream *stream;
360 int ret_val = 0, str_id;
362 stream = substream->runtime->private_data;
363 power_down_sst(stream);
365 str_id = stream->stream_info.str_id;
367 ret_val = stream->ops->close(sst->dev, str_id);
368 module_put(sst->dev->driver->owner);
372 static int sst_media_prepare(struct snd_pcm_substream *substream,
373 struct snd_soc_dai *dai)
375 struct sst_runtime_stream *stream;
376 int ret_val = 0, str_id;
378 stream = substream->runtime->private_data;
379 str_id = stream->stream_info.str_id;
380 if (stream->stream_info.str_id) {
381 ret_val = stream->ops->stream_drop(sst->dev, str_id);
385 ret_val = sst_platform_alloc_stream(substream, dai);
388 snprintf(substream->pcm->id, sizeof(substream->pcm->id),
389 "%d", stream->stream_info.str_id);
391 ret_val = sst_platform_init_stream(substream);
394 substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER;
398 static int sst_media_hw_params(struct snd_pcm_substream *substream,
399 struct snd_pcm_hw_params *params,
400 struct snd_soc_dai *dai)
402 snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
403 memset(substream->runtime->dma_area, 0, params_buffer_bytes(params));
407 static int sst_media_hw_free(struct snd_pcm_substream *substream,
408 struct snd_soc_dai *dai)
410 return snd_pcm_lib_free_pages(substream);
413 static int sst_enable_ssp(struct snd_pcm_substream *substream,
414 struct snd_soc_dai *dai)
419 ret = sst_handle_vb_timer(dai, true);
420 sst_fill_ssp_defaults(dai);
425 static int sst_be_hw_params(struct snd_pcm_substream *substream,
426 struct snd_pcm_hw_params *params,
427 struct snd_soc_dai *dai)
431 if (dai->active == 1)
432 ret = send_ssp_cmd(dai, dai->name, 1);
436 static int sst_set_format(struct snd_soc_dai *dai, unsigned int fmt)
443 ret = sst_fill_ssp_config(dai, fmt);
445 dev_err(dai->dev, "sst_set_format failed..\n");
450 static int sst_platform_set_ssp_slot(struct snd_soc_dai *dai,
451 unsigned int tx_mask, unsigned int rx_mask,
452 int slots, int slot_width) {
458 ret = sst_fill_ssp_slot(dai, tx_mask, rx_mask, slots, slot_width);
460 dev_err(dai->dev, "sst_fill_ssp_slot failed..%d\n", ret);
465 static void sst_disable_ssp(struct snd_pcm_substream *substream,
466 struct snd_soc_dai *dai)
469 send_ssp_cmd(dai, dai->name, 0);
470 sst_handle_vb_timer(dai, false);
474 static struct snd_soc_dai_ops sst_media_dai_ops = {
475 .startup = sst_media_open,
476 .shutdown = sst_media_close,
477 .prepare = sst_media_prepare,
478 .hw_params = sst_media_hw_params,
479 .hw_free = sst_media_hw_free,
480 .mute_stream = sst_media_digital_mute,
483 static struct snd_soc_dai_ops sst_compr_dai_ops = {
484 .mute_stream = sst_media_digital_mute,
487 static struct snd_soc_dai_ops sst_be_dai_ops = {
488 .startup = sst_enable_ssp,
489 .hw_params = sst_be_hw_params,
490 .set_fmt = sst_set_format,
491 .set_tdm_slot = sst_platform_set_ssp_slot,
492 .shutdown = sst_disable_ssp,
495 static struct snd_soc_dai_driver sst_platform_dai[] = {
497 .name = "media-cpu-dai",
498 .ops = &sst_media_dai_ops,
500 .stream_name = "Headset Playback",
501 .channels_min = SST_STEREO,
502 .channels_max = SST_STEREO,
503 .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000,
504 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
507 .stream_name = "Headset Capture",
510 .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000,
511 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
515 .name = "deepbuffer-cpu-dai",
516 .ops = &sst_media_dai_ops,
518 .stream_name = "Deepbuffer Playback",
519 .channels_min = SST_STEREO,
520 .channels_max = SST_STEREO,
521 .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000,
522 .formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
526 .name = "compress-cpu-dai",
527 .compress_new = snd_soc_new_compress,
528 .ops = &sst_compr_dai_ops,
530 .stream_name = "Compress Playback",
537 .ops = &sst_be_dai_ops,
539 .stream_name = "ssp0 Tx",
540 .channels_min = SST_STEREO,
541 .channels_max = SST_STEREO,
542 .rates = SNDRV_PCM_RATE_48000,
543 .formats = SNDRV_PCM_FMTBIT_S16_LE,
546 .stream_name = "ssp0 Rx",
547 .channels_min = SST_STEREO,
548 .channels_max = SST_STEREO,
549 .rates = SNDRV_PCM_RATE_48000,
550 .formats = SNDRV_PCM_FMTBIT_S16_LE,
555 .ops = &sst_be_dai_ops,
557 .stream_name = "ssp1 Tx",
558 .channels_min = SST_STEREO,
559 .channels_max = SST_STEREO,
560 .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_48000,
561 .formats = SNDRV_PCM_FMTBIT_S16_LE,
564 .stream_name = "ssp1 Rx",
565 .channels_min = SST_STEREO,
566 .channels_max = SST_STEREO,
567 .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_48000,
568 .formats = SNDRV_PCM_FMTBIT_S16_LE,
573 .ops = &sst_be_dai_ops,
575 .stream_name = "ssp2 Tx",
576 .channels_min = SST_STEREO,
577 .channels_max = SST_STEREO,
578 .rates = SNDRV_PCM_RATE_48000,
579 .formats = SNDRV_PCM_FMTBIT_S16_LE,
582 .stream_name = "ssp2 Rx",
583 .channels_min = SST_STEREO,
584 .channels_max = SST_STEREO,
585 .rates = SNDRV_PCM_RATE_48000,
586 .formats = SNDRV_PCM_FMTBIT_S16_LE,
591 static int sst_platform_open(struct snd_pcm_substream *substream)
593 struct snd_pcm_runtime *runtime;
595 if (substream->pcm->internal)
598 runtime = substream->runtime;
599 runtime->hw = sst_platform_pcm_hw;
603 static int sst_platform_pcm_trigger(struct snd_pcm_substream *substream,
606 int ret_val = 0, str_id;
607 struct sst_runtime_stream *stream;
609 struct snd_soc_pcm_runtime *rtd = substream->private_data;
611 dev_dbg(rtd->dev, "sst_platform_pcm_trigger called\n");
612 if (substream->pcm->internal)
614 stream = substream->runtime->private_data;
615 str_id = stream->stream_info.str_id;
617 case SNDRV_PCM_TRIGGER_START:
618 dev_dbg(rtd->dev, "sst: Trigger Start\n");
619 status = SST_PLATFORM_RUNNING;
620 stream->stream_info.arg = substream;
621 ret_val = stream->ops->stream_start(sst->dev, str_id);
623 case SNDRV_PCM_TRIGGER_STOP:
624 dev_dbg(rtd->dev, "sst: in stop\n");
625 status = SST_PLATFORM_DROPPED;
626 ret_val = stream->ops->stream_drop(sst->dev, str_id);
628 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
629 case SNDRV_PCM_TRIGGER_SUSPEND:
630 dev_dbg(rtd->dev, "sst: in pause\n");
631 status = SST_PLATFORM_PAUSED;
632 ret_val = stream->ops->stream_pause(sst->dev, str_id);
634 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
635 case SNDRV_PCM_TRIGGER_RESUME:
636 dev_dbg(rtd->dev, "sst: in pause release\n");
637 status = SST_PLATFORM_RUNNING;
638 ret_val = stream->ops->stream_pause_release(sst->dev, str_id);
645 sst_set_stream_status(stream, status);
651 static snd_pcm_uframes_t sst_platform_pcm_pointer
652 (struct snd_pcm_substream *substream)
654 struct sst_runtime_stream *stream;
656 struct pcm_stream_info *str_info;
657 struct snd_soc_pcm_runtime *rtd = substream->private_data;
659 stream = substream->runtime->private_data;
660 status = sst_get_stream_status(stream);
661 if (status == SST_PLATFORM_INIT)
663 str_info = &stream->stream_info;
664 ret_val = stream->ops->stream_read_tstamp(sst->dev, str_info);
666 dev_err(rtd->dev, "sst: error code = %d\n", ret_val);
669 substream->runtime->delay = str_info->pcm_delay;
670 return str_info->buffer_ptr;
673 static struct snd_pcm_ops sst_platform_ops = {
674 .open = sst_platform_open,
675 .ioctl = snd_pcm_lib_ioctl,
676 .trigger = sst_platform_pcm_trigger,
677 .pointer = sst_platform_pcm_pointer,
680 static int sst_pcm_new(struct snd_soc_pcm_runtime *rtd)
682 struct snd_soc_dai *dai = rtd->cpu_dai;
683 struct snd_pcm *pcm = rtd->pcm;
686 if (dai->driver->playback.channels_min ||
687 dai->driver->capture.channels_min) {
688 retval = snd_pcm_lib_preallocate_pages_for_all(pcm,
689 SNDRV_DMA_TYPE_CONTINUOUS,
690 snd_dma_continuous_data(GFP_DMA),
691 SST_MIN_BUFFER, SST_MAX_BUFFER);
693 dev_err(rtd->dev, "dma buffer allocationf fail\n");
700 static int sst_soc_probe(struct snd_soc_platform *platform)
702 struct sst_data *drv = dev_get_drvdata(platform->dev);
704 drv->soc_card = platform->component.card;
705 return sst_dsp_init_v2_dpcm(platform);
708 static struct snd_soc_platform_driver sst_soc_platform_drv = {
709 .probe = sst_soc_probe,
710 .ops = &sst_platform_ops,
711 .compr_ops = &sst_platform_compr_ops,
712 .pcm_new = sst_pcm_new,
715 static const struct snd_soc_component_driver sst_component = {
720 static int sst_platform_probe(struct platform_device *pdev)
722 struct sst_data *drv;
724 struct sst_platform_data *pdata;
726 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
731 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
736 pdata->pdev_strm_map = dpcm_strm_map;
737 pdata->strm_map_size = ARRAY_SIZE(dpcm_strm_map);
740 mutex_init(&drv->lock);
741 dev_set_drvdata(&pdev->dev, drv);
743 ret = snd_soc_register_platform(&pdev->dev, &sst_soc_platform_drv);
745 dev_err(&pdev->dev, "registering soc platform failed\n");
749 ret = snd_soc_register_component(&pdev->dev, &sst_component,
750 sst_platform_dai, ARRAY_SIZE(sst_platform_dai));
752 dev_err(&pdev->dev, "registering cpu dais failed\n");
753 snd_soc_unregister_platform(&pdev->dev);
758 static int sst_platform_remove(struct platform_device *pdev)
761 snd_soc_unregister_component(&pdev->dev);
762 snd_soc_unregister_platform(&pdev->dev);
763 dev_dbg(&pdev->dev, "sst_platform_remove success\n");
767 #ifdef CONFIG_PM_SLEEP
769 static int sst_soc_prepare(struct device *dev)
771 struct sst_data *drv = dev_get_drvdata(dev);
772 struct snd_soc_pcm_runtime *rtd;
774 /* suspend all pcms first */
775 snd_soc_suspend(drv->soc_card->dev);
776 snd_soc_poweroff(drv->soc_card->dev);
778 /* set the SSPs to idle */
779 list_for_each_entry(rtd, &drv->soc_card->rtd_list, list) {
780 struct snd_soc_dai *dai = rtd->cpu_dai;
783 send_ssp_cmd(dai, dai->name, 0);
784 sst_handle_vb_timer(dai, false);
791 static void sst_soc_complete(struct device *dev)
793 struct sst_data *drv = dev_get_drvdata(dev);
794 struct snd_soc_pcm_runtime *rtd;
797 list_for_each_entry(rtd, &drv->soc_card->rtd_list, list) {
798 struct snd_soc_dai *dai = rtd->cpu_dai;
801 sst_handle_vb_timer(dai, true);
802 send_ssp_cmd(dai, dai->name, 1);
805 snd_soc_resume(drv->soc_card->dev);
810 #define sst_soc_prepare NULL
811 #define sst_soc_complete NULL
816 static const struct dev_pm_ops sst_platform_pm = {
817 .prepare = sst_soc_prepare,
818 .complete = sst_soc_complete,
821 static struct platform_driver sst_platform_driver = {
823 .name = "sst-mfld-platform",
824 .pm = &sst_platform_pm,
826 .probe = sst_platform_probe,
827 .remove = sst_platform_remove,
830 module_platform_driver(sst_platform_driver);
832 MODULE_DESCRIPTION("ASoC Intel(R) MID Platform driver");
833 MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
834 MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
835 MODULE_LICENSE("GPL v2");
836 MODULE_ALIAS("platform:sst-mfld-platform");