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},
103 static int sst_media_digital_mute(struct snd_soc_dai *dai, int mute, int stream)
106 return sst_send_pipe_gains(dai, stream, mute);
109 /* helper functions */
110 void sst_set_stream_status(struct sst_runtime_stream *stream,
114 spin_lock_irqsave(&stream->status_lock, flags);
115 stream->stream_status = state;
116 spin_unlock_irqrestore(&stream->status_lock, flags);
119 static inline int sst_get_stream_status(struct sst_runtime_stream *stream)
124 spin_lock_irqsave(&stream->status_lock, flags);
125 state = stream->stream_status;
126 spin_unlock_irqrestore(&stream->status_lock, flags);
130 static void sst_fill_alloc_params(struct snd_pcm_substream *substream,
131 struct snd_sst_alloc_params_ext *alloc_param)
133 unsigned int channels;
134 snd_pcm_uframes_t period_size;
136 ssize_t buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
137 u32 buffer_addr = virt_to_phys(substream->runtime->dma_area);
139 channels = substream->runtime->channels;
140 period_size = substream->runtime->period_size;
141 periodbytes = samples_to_bytes(substream->runtime, period_size);
142 alloc_param->ring_buf_info[0].addr = buffer_addr;
143 alloc_param->ring_buf_info[0].size = buffer_bytes;
144 alloc_param->sg_count = 1;
145 alloc_param->reserved = 0;
146 alloc_param->frag_size = periodbytes * channels;
149 static void sst_fill_pcm_params(struct snd_pcm_substream *substream,
150 struct snd_sst_stream_params *param)
152 param->uc.pcm_params.num_chan = (u8) substream->runtime->channels;
153 param->uc.pcm_params.pcm_wd_sz = substream->runtime->sample_bits;
154 param->uc.pcm_params.sfreq = substream->runtime->rate;
156 /* PCM stream via ALSA interface */
157 param->uc.pcm_params.use_offload_path = 0;
158 param->uc.pcm_params.reserved2 = 0;
159 memset(param->uc.pcm_params.channel_map, 0, sizeof(u8));
163 static int sst_get_stream_mapping(int dev, int sdev, int dir,
164 struct sst_dev_stream_map *map, int size)
172 /* index 0 is not used in stream map */
173 for (i = 1; i < size; i++) {
174 if ((map[i].dev_num == dev) && (map[i].direction == dir))
180 int sst_fill_stream_params(void *substream,
181 const struct sst_data *ctx, struct snd_sst_params *str_params, bool is_compress)
185 struct sst_dev_stream_map *map;
186 struct snd_pcm_substream *pstream = NULL;
187 struct snd_compr_stream *cstream = NULL;
189 map = ctx->pdata->pdev_strm_map;
190 map_size = ctx->pdata->strm_map_size;
192 if (is_compress == true)
193 cstream = (struct snd_compr_stream *)substream;
195 pstream = (struct snd_pcm_substream *)substream;
197 str_params->stream_type = SST_STREAM_TYPE_MUSIC;
199 /* For pcm streams */
201 index = sst_get_stream_mapping(pstream->pcm->device,
202 pstream->number, pstream->stream,
207 str_params->stream_id = index;
208 str_params->device_type = map[index].device_id;
209 str_params->task = map[index].task_id;
211 str_params->ops = (u8)pstream->stream;
215 index = sst_get_stream_mapping(cstream->device->device,
216 0, cstream->direction,
220 str_params->stream_id = index;
221 str_params->device_type = map[index].device_id;
222 str_params->task = map[index].task_id;
224 str_params->ops = (u8)cstream->direction;
229 static int sst_platform_alloc_stream(struct snd_pcm_substream *substream,
230 struct snd_soc_dai *dai)
232 struct sst_runtime_stream *stream =
233 substream->runtime->private_data;
234 struct snd_sst_stream_params param = {{{0,},},};
235 struct snd_sst_params str_params = {0};
236 struct snd_sst_alloc_params_ext alloc_params = {0};
238 struct sst_data *ctx = snd_soc_dai_get_drvdata(dai);
240 /* set codec params and inform SST driver the same */
241 sst_fill_pcm_params(substream, ¶m);
242 sst_fill_alloc_params(substream, &alloc_params);
243 str_params.sparams = param;
244 str_params.aparams = alloc_params;
245 str_params.codec = SST_CODEC_TYPE_PCM;
247 /* fill the device type and stream id to pass to SST driver */
248 ret_val = sst_fill_stream_params(substream, ctx, &str_params, false);
252 stream->stream_info.str_id = str_params.stream_id;
254 ret_val = stream->ops->open(sst->dev, &str_params);
262 static void sst_period_elapsed(void *arg)
264 struct snd_pcm_substream *substream = arg;
265 struct sst_runtime_stream *stream;
268 if (!substream || !substream->runtime)
270 stream = substream->runtime->private_data;
273 status = sst_get_stream_status(stream);
274 if (status != SST_PLATFORM_RUNNING)
276 snd_pcm_period_elapsed(substream);
279 static int sst_platform_init_stream(struct snd_pcm_substream *substream)
281 struct sst_runtime_stream *stream =
282 substream->runtime->private_data;
283 struct snd_soc_pcm_runtime *rtd = substream->private_data;
286 dev_dbg(rtd->dev, "setting buffer ptr param\n");
287 sst_set_stream_status(stream, SST_PLATFORM_INIT);
288 stream->stream_info.period_elapsed = sst_period_elapsed;
289 stream->stream_info.arg = substream;
290 stream->stream_info.buffer_ptr = 0;
291 stream->stream_info.sfreq = substream->runtime->rate;
292 ret_val = stream->ops->stream_init(sst->dev, &stream->stream_info);
294 dev_err(rtd->dev, "control_set ret error %d\n", ret_val);
299 static int power_up_sst(struct sst_runtime_stream *stream)
301 return stream->ops->power(sst->dev, true);
304 static void power_down_sst(struct sst_runtime_stream *stream)
306 stream->ops->power(sst->dev, false);
309 static int sst_media_open(struct snd_pcm_substream *substream,
310 struct snd_soc_dai *dai)
313 struct snd_pcm_runtime *runtime = substream->runtime;
314 struct sst_runtime_stream *stream;
316 stream = kzalloc(sizeof(*stream), GFP_KERNEL);
319 spin_lock_init(&stream->status_lock);
321 /* get the sst ops */
322 mutex_lock(&sst_lock);
324 !try_module_get(sst->dev->driver->owner)) {
325 dev_err(dai->dev, "no device available to run\n");
329 stream->ops = sst->ops;
330 mutex_unlock(&sst_lock);
332 stream->stream_info.str_id = 0;
334 stream->stream_info.arg = substream;
335 /* allocate memory for SST API set */
336 runtime->private_data = stream;
338 ret_val = power_up_sst(stream);
342 /* Make sure, that the period size is always even */
343 snd_pcm_hw_constraint_step(substream->runtime, 0,
344 SNDRV_PCM_HW_PARAM_PERIODS, 2);
346 return snd_pcm_hw_constraint_integer(runtime,
347 SNDRV_PCM_HW_PARAM_PERIODS);
349 mutex_unlock(&sst_lock);
355 static void sst_media_close(struct snd_pcm_substream *substream,
356 struct snd_soc_dai *dai)
358 struct sst_runtime_stream *stream;
359 int ret_val = 0, str_id;
361 stream = substream->runtime->private_data;
362 power_down_sst(stream);
364 str_id = stream->stream_info.str_id;
366 ret_val = stream->ops->close(sst->dev, str_id);
367 module_put(sst->dev->driver->owner);
371 static int sst_media_prepare(struct snd_pcm_substream *substream,
372 struct snd_soc_dai *dai)
374 struct sst_runtime_stream *stream;
375 int ret_val = 0, str_id;
377 stream = substream->runtime->private_data;
378 str_id = stream->stream_info.str_id;
379 if (stream->stream_info.str_id) {
380 ret_val = stream->ops->stream_drop(sst->dev, str_id);
384 ret_val = sst_platform_alloc_stream(substream, dai);
387 snprintf(substream->pcm->id, sizeof(substream->pcm->id),
388 "%d", stream->stream_info.str_id);
390 ret_val = sst_platform_init_stream(substream);
393 substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER;
397 static int sst_media_hw_params(struct snd_pcm_substream *substream,
398 struct snd_pcm_hw_params *params,
399 struct snd_soc_dai *dai)
404 snd_pcm_lib_malloc_pages(substream,
405 params_buffer_bytes(params));
408 memset(substream->runtime->dma_area, 0, params_buffer_bytes(params));
412 static int sst_media_hw_free(struct snd_pcm_substream *substream,
413 struct snd_soc_dai *dai)
415 return snd_pcm_lib_free_pages(substream);
418 static int sst_enable_ssp(struct snd_pcm_substream *substream,
419 struct snd_soc_dai *dai)
424 ret = sst_handle_vb_timer(dai, true);
425 sst_fill_ssp_defaults(dai);
430 static int sst_be_hw_params(struct snd_pcm_substream *substream,
431 struct snd_pcm_hw_params *params,
432 struct snd_soc_dai *dai)
436 if (dai->active == 1)
437 ret = send_ssp_cmd(dai, dai->name, 1);
441 static int sst_set_format(struct snd_soc_dai *dai, unsigned int fmt)
448 ret = sst_fill_ssp_config(dai, fmt);
450 dev_err(dai->dev, "sst_set_format failed..\n");
455 static int sst_platform_set_ssp_slot(struct snd_soc_dai *dai,
456 unsigned int tx_mask, unsigned int rx_mask,
457 int slots, int slot_width) {
463 ret = sst_fill_ssp_slot(dai, tx_mask, rx_mask, slots, slot_width);
465 dev_err(dai->dev, "sst_fill_ssp_slot failed..%d\n", ret);
470 static void sst_disable_ssp(struct snd_pcm_substream *substream,
471 struct snd_soc_dai *dai)
474 send_ssp_cmd(dai, dai->name, 0);
475 sst_handle_vb_timer(dai, false);
479 static struct snd_soc_dai_ops sst_media_dai_ops = {
480 .startup = sst_media_open,
481 .shutdown = sst_media_close,
482 .prepare = sst_media_prepare,
483 .hw_params = sst_media_hw_params,
484 .hw_free = sst_media_hw_free,
485 .mute_stream = sst_media_digital_mute,
488 static struct snd_soc_dai_ops sst_compr_dai_ops = {
489 .mute_stream = sst_media_digital_mute,
492 static struct snd_soc_dai_ops sst_be_dai_ops = {
493 .startup = sst_enable_ssp,
494 .hw_params = sst_be_hw_params,
495 .set_fmt = sst_set_format,
496 .set_tdm_slot = sst_platform_set_ssp_slot,
497 .shutdown = sst_disable_ssp,
500 static struct snd_soc_dai_driver sst_platform_dai[] = {
502 .name = "media-cpu-dai",
503 .ops = &sst_media_dai_ops,
505 .stream_name = "Headset Playback",
506 .channels_min = SST_STEREO,
507 .channels_max = SST_STEREO,
508 .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000,
509 .formats = SNDRV_PCM_FMTBIT_S16_LE,
512 .stream_name = "Headset Capture",
515 .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000,
516 .formats = SNDRV_PCM_FMTBIT_S16_LE,
520 .name = "compress-cpu-dai",
521 .compress_new = snd_soc_new_compress,
522 .ops = &sst_compr_dai_ops,
524 .stream_name = "Compress Playback",
525 .channels_min = SST_STEREO,
526 .channels_max = SST_STEREO,
527 .rates = SNDRV_PCM_RATE_48000,
528 .formats = SNDRV_PCM_FMTBIT_S16_LE,
534 .ops = &sst_be_dai_ops,
536 .stream_name = "ssp0 Tx",
537 .channels_min = SST_STEREO,
538 .channels_max = SST_STEREO,
539 .rates = SNDRV_PCM_RATE_48000,
540 .formats = SNDRV_PCM_FMTBIT_S16_LE,
543 .stream_name = "ssp0 Rx",
544 .channels_min = SST_STEREO,
545 .channels_max = SST_STEREO,
546 .rates = SNDRV_PCM_RATE_48000,
547 .formats = SNDRV_PCM_FMTBIT_S16_LE,
552 .ops = &sst_be_dai_ops,
554 .stream_name = "ssp1 Tx",
555 .channels_min = SST_STEREO,
556 .channels_max = SST_STEREO,
557 .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_48000,
558 .formats = SNDRV_PCM_FMTBIT_S16_LE,
561 .stream_name = "ssp1 Rx",
562 .channels_min = SST_STEREO,
563 .channels_max = SST_STEREO,
564 .rates = SNDRV_PCM_RATE_8000|SNDRV_PCM_RATE_16000|SNDRV_PCM_RATE_48000,
565 .formats = SNDRV_PCM_FMTBIT_S16_LE,
570 .ops = &sst_be_dai_ops,
572 .stream_name = "ssp2 Tx",
573 .channels_min = SST_STEREO,
574 .channels_max = SST_STEREO,
575 .rates = SNDRV_PCM_RATE_48000,
576 .formats = SNDRV_PCM_FMTBIT_S16_LE,
579 .stream_name = "ssp2 Rx",
580 .channels_min = SST_STEREO,
581 .channels_max = SST_STEREO,
582 .rates = SNDRV_PCM_RATE_48000,
583 .formats = SNDRV_PCM_FMTBIT_S16_LE,
588 static int sst_platform_open(struct snd_pcm_substream *substream)
590 struct snd_pcm_runtime *runtime;
592 if (substream->pcm->internal)
595 runtime = substream->runtime;
596 runtime->hw = sst_platform_pcm_hw;
600 static int sst_platform_pcm_trigger(struct snd_pcm_substream *substream,
603 int ret_val = 0, str_id;
604 struct sst_runtime_stream *stream;
606 struct snd_soc_pcm_runtime *rtd = substream->private_data;
608 dev_dbg(rtd->dev, "sst_platform_pcm_trigger called\n");
609 if (substream->pcm->internal)
611 stream = substream->runtime->private_data;
612 str_id = stream->stream_info.str_id;
614 case SNDRV_PCM_TRIGGER_START:
615 dev_dbg(rtd->dev, "sst: Trigger Start\n");
616 status = SST_PLATFORM_RUNNING;
617 stream->stream_info.arg = substream;
618 ret_val = stream->ops->stream_start(sst->dev, str_id);
620 case SNDRV_PCM_TRIGGER_STOP:
621 dev_dbg(rtd->dev, "sst: in stop\n");
622 status = SST_PLATFORM_DROPPED;
623 ret_val = stream->ops->stream_drop(sst->dev, str_id);
625 case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
626 case SNDRV_PCM_TRIGGER_SUSPEND:
627 dev_dbg(rtd->dev, "sst: in pause\n");
628 status = SST_PLATFORM_PAUSED;
629 ret_val = stream->ops->stream_pause(sst->dev, str_id);
631 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
632 case SNDRV_PCM_TRIGGER_RESUME:
633 dev_dbg(rtd->dev, "sst: in pause release\n");
634 status = SST_PLATFORM_RUNNING;
635 ret_val = stream->ops->stream_pause_release(sst->dev, str_id);
642 sst_set_stream_status(stream, status);
648 static snd_pcm_uframes_t sst_platform_pcm_pointer
649 (struct snd_pcm_substream *substream)
651 struct sst_runtime_stream *stream;
653 struct pcm_stream_info *str_info;
654 struct snd_soc_pcm_runtime *rtd = substream->private_data;
656 stream = substream->runtime->private_data;
657 status = sst_get_stream_status(stream);
658 if (status == SST_PLATFORM_INIT)
660 str_info = &stream->stream_info;
661 ret_val = stream->ops->stream_read_tstamp(sst->dev, str_info);
663 dev_err(rtd->dev, "sst: error code = %d\n", ret_val);
666 substream->runtime->delay = str_info->pcm_delay;
667 return str_info->buffer_ptr;
670 static struct snd_pcm_ops sst_platform_ops = {
671 .open = sst_platform_open,
672 .ioctl = snd_pcm_lib_ioctl,
673 .trigger = sst_platform_pcm_trigger,
674 .pointer = sst_platform_pcm_pointer,
677 static int sst_pcm_new(struct snd_soc_pcm_runtime *rtd)
679 struct snd_soc_dai *dai = rtd->cpu_dai;
680 struct snd_pcm *pcm = rtd->pcm;
683 if (dai->driver->playback.channels_min ||
684 dai->driver->capture.channels_min) {
685 retval = snd_pcm_lib_preallocate_pages_for_all(pcm,
686 SNDRV_DMA_TYPE_CONTINUOUS,
687 snd_dma_continuous_data(GFP_DMA),
688 SST_MIN_BUFFER, SST_MAX_BUFFER);
690 dev_err(rtd->dev, "dma buffer allocationf fail\n");
697 static int sst_soc_probe(struct snd_soc_platform *platform)
699 struct sst_data *drv = dev_get_drvdata(platform->dev);
701 drv->soc_card = platform->component.card;
702 return sst_dsp_init_v2_dpcm(platform);
705 static struct snd_soc_platform_driver sst_soc_platform_drv = {
706 .probe = sst_soc_probe,
707 .ops = &sst_platform_ops,
708 .compr_ops = &sst_platform_compr_ops,
709 .pcm_new = sst_pcm_new,
712 static const struct snd_soc_component_driver sst_component = {
717 static int sst_platform_probe(struct platform_device *pdev)
719 struct sst_data *drv;
721 struct sst_platform_data *pdata;
723 drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_KERNEL);
728 pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
733 pdata->pdev_strm_map = dpcm_strm_map;
734 pdata->strm_map_size = ARRAY_SIZE(dpcm_strm_map);
737 mutex_init(&drv->lock);
738 dev_set_drvdata(&pdev->dev, drv);
740 ret = snd_soc_register_platform(&pdev->dev, &sst_soc_platform_drv);
742 dev_err(&pdev->dev, "registering soc platform failed\n");
746 ret = snd_soc_register_component(&pdev->dev, &sst_component,
747 sst_platform_dai, ARRAY_SIZE(sst_platform_dai));
749 dev_err(&pdev->dev, "registering cpu dais failed\n");
750 snd_soc_unregister_platform(&pdev->dev);
755 static int sst_platform_remove(struct platform_device *pdev)
758 snd_soc_unregister_component(&pdev->dev);
759 snd_soc_unregister_platform(&pdev->dev);
760 dev_dbg(&pdev->dev, "sst_platform_remove success\n");
764 #ifdef CONFIG_PM_SLEEP
766 static int sst_soc_prepare(struct device *dev)
768 struct sst_data *drv = dev_get_drvdata(dev);
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 for (i = 0; i < drv->soc_card->num_rtd; i++) {
780 struct snd_soc_dai *dai = drv->soc_card->rtd[i].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);
800 for (i = 0; i < drv->soc_card->num_rtd; i++) {
801 struct snd_soc_dai *dai = drv->soc_card->rtd[i].cpu_dai;
804 sst_handle_vb_timer(dai, true);
805 send_ssp_cmd(dai, dai->name, 1);
808 snd_soc_resume(drv->soc_card->dev);
813 #define sst_soc_prepare NULL
814 #define sst_soc_complete NULL
819 static const struct dev_pm_ops sst_platform_pm = {
820 .prepare = sst_soc_prepare,
821 .complete = sst_soc_complete,
824 static struct platform_driver sst_platform_driver = {
826 .name = "sst-mfld-platform",
827 .pm = &sst_platform_pm,
829 .probe = sst_platform_probe,
830 .remove = sst_platform_remove,
833 module_platform_driver(sst_platform_driver);
835 MODULE_DESCRIPTION("ASoC Intel(R) MID Platform driver");
836 MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
837 MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
838 MODULE_LICENSE("GPL v2");
839 MODULE_ALIAS("platform:sst-mfld-platform");