[deliverable/linux.git] / sound / soc / intel / cht_bsw_rt5672.c

/*
 *  cht_bsw_rt5672.c - ASoc Machine driver for Intel Cherryview-based platforms
 *                     Cherrytrail and Braswell, with RT5672 codec.
 *
 *  Copyright (C) 2014 Intel Corp
 *  Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
 *          Mengdong Lin <mengdong.lin@intel.com>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; version 2 of the License.
 *
 *  This program is distributed in the hope that it will be useful, but
 *  WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  General Public License for more details.
 */

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include "../codecs/rt5670.h"
#include "sst-atom-controls.h"

/* The platform clock #3 outputs 19.2Mhz clock to codec as I2S MCLK */
#define CHT_PLAT_CLK_3_HZ	19200000
#define CHT_CODEC_DAI	"rt5670-aif1"

static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card)
{
	int i;

	for (i = 0; i < card->num_rtd; i++) {
		struct snd_soc_pcm_runtime *rtd;

		rtd = card->rtd + i;
		if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
			     strlen(CHT_CODEC_DAI)))
			return rtd->codec_dai;
	}
	return NULL;
}

static int platform_clock_control(struct snd_soc_dapm_widget *w,
		struct snd_kcontrol *k, int  event)
{
	struct snd_soc_dapm_context *dapm = w->dapm;
	struct snd_soc_card *card = dapm->card;
	struct snd_soc_dai *codec_dai;

	codec_dai = cht_get_codec_dai(card);
	if (!codec_dai) {
		dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
		return -EIO;
	}

	if (!SND_SOC_DAPM_EVENT_OFF(event))
		return 0;

	/* Set codec sysclk source to its internal clock because codec PLL will
	 * be off when idle and MCLK will also be off by ACPI when codec is
	 * runtime suspended. Codec needs clock for jack detection and button
	 * press.
	 */
	snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_RCCLK,
			       0, SND_SOC_CLOCK_IN);

	return 0;
}

static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_MIC("Int Mic", NULL),
	SND_SOC_DAPM_SPK("Ext Spk", NULL),
	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
			platform_clock_control, SND_SOC_DAPM_POST_PMD),
};

static const struct snd_soc_dapm_route cht_audio_map[] = {
	{"IN1P", NULL, "Headset Mic"},
	{"IN1N", NULL, "Headset Mic"},
	{"DMIC L1", NULL, "Int Mic"},
	{"DMIC R1", NULL, "Int Mic"},
	{"Headphone", NULL, "HPOL"},
	{"Headphone", NULL, "HPOR"},
	{"Ext Spk", NULL, "SPOLP"},
	{"Ext Spk", NULL, "SPOLN"},
	{"Ext Spk", NULL, "SPORP"},
	{"Ext Spk", NULL, "SPORN"},
	{"AIF1 Playback", NULL, "ssp2 Tx"},
	{"ssp2 Tx", NULL, "codec_out0"},
	{"ssp2 Tx", NULL, "codec_out1"},
	{"codec_in0", NULL, "ssp2 Rx"},
	{"codec_in1", NULL, "ssp2 Rx"},
	{"ssp2 Rx", NULL, "AIF1 Capture"},
	{"Headphone", NULL, "Platform Clock"},
	{"Headset Mic", NULL, "Platform Clock"},
	{"Int Mic", NULL, "Platform Clock"},
	{"Ext Spk", NULL, "Platform Clock"},
};

static const struct snd_kcontrol_new cht_mc_controls[] = {
	SOC_DAPM_PIN_SWITCH("Headphone"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	SOC_DAPM_PIN_SWITCH("Int Mic"),
	SOC_DAPM_PIN_SWITCH("Ext Spk"),
};

static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
					struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	int ret;

	/* set codec PLL source to the 19.2MHz platform clock (MCLK) */
	ret = snd_soc_dai_set_pll(codec_dai, 0, RT5670_PLL1_S_MCLK,
				  CHT_PLAT_CLK_3_HZ, params_rate(params) * 512);
	if (ret < 0) {
		dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
		return ret;
	}

	/* set codec sysclk source to PLL */
	ret = snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_PLL1,
				     params_rate(params) * 512,
				     SND_SOC_CLOCK_IN);
	if (ret < 0) {
		dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
		return ret;
	}
	return 0;
}

static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
{
	int ret;
	struct snd_soc_dai *codec_dai = runtime->codec_dai;
	struct snd_soc_codec *codec = codec_dai->codec;

	/* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */
	ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24);
	if (ret < 0) {
		dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret);
		return ret;
	}

	/* Select codec ASRC clock source to track I2S1 clock, because codec
	 * is in slave mode and 100fs I2S format (BCLK = 100 * LRCLK) cannot
	 * be supported by RT5672. Otherwise, ASRC will be disabled and cause
	 * noise.
	 */
	rt5670_sel_asrc_clk_src(codec,
				RT5670_DA_STEREO_FILTER
				| RT5670_DA_MONO_L_FILTER
				| RT5670_DA_MONO_R_FILTER
				| RT5670_AD_STEREO_FILTER
				| RT5670_AD_MONO_L_FILTER
				| RT5670_AD_MONO_R_FILTER,
				RT5670_CLK_SEL_I2S1_ASRC);
	return 0;
}

static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
			    struct snd_pcm_hw_params *params)
{
	struct snd_interval *rate = hw_param_interval(params,
			SNDRV_PCM_HW_PARAM_RATE);
	struct snd_interval *channels = hw_param_interval(params,
						SNDRV_PCM_HW_PARAM_CHANNELS);

	/* The DSP will covert the FE rate to 48k, stereo, 24bits */
	rate->min = rate->max = 48000;
	channels->min = channels->max = 2;

	/* set SSP2 to 24-bit */
	snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
				    SNDRV_PCM_HW_PARAM_FIRST_MASK],
				    SNDRV_PCM_FORMAT_S24_LE);
	return 0;
}

static unsigned int rates_48000[] = {
	48000,
};

static struct snd_pcm_hw_constraint_list constraints_48000 = {
	.count = ARRAY_SIZE(rates_48000),
	.list  = rates_48000,
};

static int cht_aif1_startup(struct snd_pcm_substream *substream)
{
	return snd_pcm_hw_constraint_list(substream->runtime, 0,
			SNDRV_PCM_HW_PARAM_RATE,
			&constraints_48000);
}

static struct snd_soc_ops cht_aif1_ops = {
	.startup = cht_aif1_startup,
};

static struct snd_soc_ops cht_be_ssp2_ops = {
	.hw_params = cht_aif1_hw_params,
};

static struct snd_soc_dai_link cht_dailink[] = {
	/* Front End DAI links */
	[MERR_DPCM_AUDIO] = {
		.name = "Audio Port",
		.stream_name = "Audio",
		.cpu_dai_name = "media-cpu-dai",
		.codec_dai_name = "snd-soc-dummy-dai",
		.codec_name = "snd-soc-dummy",
		.platform_name = "sst-mfld-platform",
		.ignore_suspend = 1,
		.dynamic = 1,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.ops = &cht_aif1_ops,
	},
	[MERR_DPCM_COMPR] = {
		.name = "Compressed Port",
		.stream_name = "Compress",
		.cpu_dai_name = "compress-cpu-dai",
		.codec_dai_name = "snd-soc-dummy-dai",
		.codec_name = "snd-soc-dummy",
		.platform_name = "sst-mfld-platform",
	},

	/* Back End DAI links */
	{
		/* SSP2 - Codec */
		.name = "SSP2-Codec",
		.be_id = 1,
		.cpu_dai_name = "ssp2-port",
		.platform_name = "sst-mfld-platform",
		.no_pcm = 1,
		.codec_dai_name = "rt5670-aif1",
		.codec_name = "i2c-10EC5670:00",
		.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_IB_NF
					| SND_SOC_DAIFMT_CBS_CFS,
		.init = cht_codec_init,
		.be_hw_params_fixup = cht_codec_fixup,
		.ignore_suspend = 1,
		.dpcm_playback = 1,
		.dpcm_capture = 1,
		.ops = &cht_be_ssp2_ops,
	},
};

/* SoC card */
static struct snd_soc_card snd_soc_card_cht = {
	.name = "cherrytrailcraudio",
	.dai_link = cht_dailink,
	.num_links = ARRAY_SIZE(cht_dailink),
	.dapm_widgets = cht_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
	.dapm_routes = cht_audio_map,
	.num_dapm_routes = ARRAY_SIZE(cht_audio_map),
	.controls = cht_mc_controls,
	.num_controls = ARRAY_SIZE(cht_mc_controls),
};

static int snd_cht_mc_probe(struct platform_device *pdev)
{
	int ret_val = 0;

	/* register the soc card */
	snd_soc_card_cht.dev = &pdev->dev;
	ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
	if (ret_val) {
		dev_err(&pdev->dev,
			"snd_soc_register_card failed %d\n", ret_val);
		return ret_val;
	}
	platform_set_drvdata(pdev, &snd_soc_card_cht);
	return ret_val;
}

static struct platform_driver snd_cht_mc_driver = {
	.driver = {
		.name = "cht-bsw-rt5672",
		.pm = &snd_soc_pm_ops,
	},
	.probe = snd_cht_mc_probe,
};

module_platform_driver(snd_cht_mc_driver);

MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
MODULE_AUTHOR("Subhransu S. Prusty, Mengdong Lin");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:cht-bsw-rt5672");
Commit	Line	Data
026da220 ML	1	/*
	2	* cht_bsw_rt5672.c - ASoc Machine driver for Intel Cherryview-based platforms
	3	* Cherrytrail and Braswell, with RT5672 codec.
	4	*
	5	* Copyright (C) 2014 Intel Corp
	6	* Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
	7	* Mengdong Lin <mengdong.lin@intel.com>
	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	*/
	18
	19	#include <linux/module.h>
	20	#include <linux/platform_device.h>
	21	#include <linux/slab.h>
	22	#include <sound/pcm.h>
	23	#include <sound/pcm_params.h>
	24	#include <sound/soc.h>
	25	#include "../codecs/rt5670.h"
	26	#include "sst-atom-controls.h"
	27
	28	/* The platform clock #3 outputs 19.2Mhz clock to codec as I2S MCLK */
	29	#define CHT_PLAT_CLK_3_HZ 19200000
	30	#define CHT_CODEC_DAI "rt5670-aif1"
	31
	32	static inline struct snd_soc_dai cht_get_codec_dai(struct snd_soc_card card)
	33	{
	34	int i;
	35
	36	for (i = 0; i < card->num_rtd; i++) {
	37	struct snd_soc_pcm_runtime *rtd;
	38
	39	rtd = card->rtd + i;
	40	if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI,
	41	strlen(CHT_CODEC_DAI)))
	42	return rtd->codec_dai;
	43	}
	44	return NULL;
	45	}
	46
	47	static int platform_clock_control(struct snd_soc_dapm_widget *w,
	48	struct snd_kcontrol *k, int event)
	49	{
	50	struct snd_soc_dapm_context *dapm = w->dapm;
	51	struct snd_soc_card *card = dapm->card;
	52	struct snd_soc_dai *codec_dai;
	53
	54	codec_dai = cht_get_codec_dai(card);
	55	if (!codec_dai) {
	56	dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
	57	return -EIO;
	58	}
	59
	60	if (!SND_SOC_DAPM_EVENT_OFF(event))
	61	return 0;
	62
	63	/* Set codec sysclk source to its internal clock because codec PLL will
	64	* be off when idle and MCLK will also be off by ACPI when codec is
65	* runtime suspended. Codec needs clock for jack detection and button
66	* press.
67	*/
68	snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_RCCLK,
69	0, SND_SOC_CLOCK_IN);
70
71	return 0;
72	}
73
74	static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
75	SND_SOC_DAPM_HP("Headphone", NULL),
76	SND_SOC_DAPM_MIC("Headset Mic", NULL),
77	SND_SOC_DAPM_MIC("Int Mic", NULL),
78	SND_SOC_DAPM_SPK("Ext Spk", NULL),
79	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
80	platform_clock_control, SND_SOC_DAPM_POST_PMD),
81	};
82
83	static const struct snd_soc_dapm_route cht_audio_map[] = {
84	{"IN1P", NULL, "Headset Mic"},
85	{"IN1N", NULL, "Headset Mic"},
86	{"DMIC L1", NULL, "Int Mic"},
87	{"DMIC R1", NULL, "Int Mic"},
88	{"Headphone", NULL, "HPOL"},
89	{"Headphone", NULL, "HPOR"},
90	{"Ext Spk", NULL, "SPOLP"},
91	{"Ext Spk", NULL, "SPOLN"},
92	{"Ext Spk", NULL, "SPORP"},
93	{"Ext Spk", NULL, "SPORN"},
94	{"AIF1 Playback", NULL, "ssp2 Tx"},
95	{"ssp2 Tx", NULL, "codec_out0"},
96	{"ssp2 Tx", NULL, "codec_out1"},
97	{"codec_in0", NULL, "ssp2 Rx"},
98	{"codec_in1", NULL, "ssp2 Rx"},
99	{"ssp2 Rx", NULL, "AIF1 Capture"},
100	{"Headphone", NULL, "Platform Clock"},
101	{"Headset Mic", NULL, "Platform Clock"},
102	{"Int Mic", NULL, "Platform Clock"},
103	{"Ext Spk", NULL, "Platform Clock"},
104	};
105
106	static const struct snd_kcontrol_new cht_mc_controls[] = {
107	SOC_DAPM_PIN_SWITCH("Headphone"),
108	SOC_DAPM_PIN_SWITCH("Headset Mic"),
109	SOC_DAPM_PIN_SWITCH("Int Mic"),
110	SOC_DAPM_PIN_SWITCH("Ext Spk"),
111	};
112
113	static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
114	struct snd_pcm_hw_params *params)
115	{
116	struct snd_soc_pcm_runtime *rtd = substream->private_data;
117	struct snd_soc_dai *codec_dai = rtd->codec_dai;
118	int ret;
119
120	/* set codec PLL source to the 19.2MHz platform clock (MCLK) */
121	ret = snd_soc_dai_set_pll(codec_dai, 0, RT5670_PLL1_S_MCLK,
122	CHT_PLAT_CLK_3_HZ, params_rate(params) * 512);
123	if (ret < 0) {
124	dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
125	return ret;
126	}
127
128	/* set codec sysclk source to PLL */
129	ret = snd_soc_dai_set_sysclk(codec_dai, RT5670_SCLK_S_PLL1,
130	params_rate(params) * 512,
131	SND_SOC_CLOCK_IN);
132	if (ret < 0) {
133	dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
134	return ret;
135	}
136	return 0;
137	}
138
139	static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
140	{
141	int ret;
142	struct snd_soc_dai *codec_dai = runtime->codec_dai;
eb55fab9	143	struct snd_soc_codec *codec = codec_dai->codec;
026da220 ML	144
	145	/* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */
	146	ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24);
	147	if (ret < 0) {
	148	dev_err(runtime->dev, "can't set codec TDM slot %d\n", ret);
	149	return ret;
	150	}
	151
eb55fab9 ML	152	/* Select codec ASRC clock source to track I2S1 clock, because codec
	153	* is in slave mode and 100fs I2S format (BCLK = 100 * LRCLK) cannot
	154	* be supported by RT5672. Otherwise, ASRC will be disabled and cause
	155	* noise.
	156	*/
	157	rt5670_sel_asrc_clk_src(codec,
	158	RT5670_DA_STEREO_FILTER
	159	\| RT5670_DA_MONO_L_FILTER
	160	\| RT5670_DA_MONO_R_FILTER
	161	\| RT5670_AD_STEREO_FILTER
	162	\| RT5670_AD_MONO_L_FILTER
	163	\| RT5670_AD_MONO_R_FILTER,
	164	RT5670_CLK_SEL_I2S1_ASRC);
026da220 ML	165	return 0;
	166	}
	167
	168	static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
	169	struct snd_pcm_hw_params *params)
	170	{
	171	struct snd_interval *rate = hw_param_interval(params,
	172	SNDRV_PCM_HW_PARAM_RATE);
	173	struct snd_interval *channels = hw_param_interval(params,
	174	SNDRV_PCM_HW_PARAM_CHANNELS);
	175
	176	/* The DSP will covert the FE rate to 48k, stereo, 24bits */
	177	rate->min = rate->max = 48000;
	178	channels->min = channels->max = 2;
	179
	180	/* set SSP2 to 24-bit */
	181	snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
	182	SNDRV_PCM_HW_PARAM_FIRST_MASK],
	183	SNDRV_PCM_FORMAT_S24_LE);
	184	return 0;
	185	}
	186
	187	static unsigned int rates_48000[] = {
	188	48000,
	189	};
	190
	191	static struct snd_pcm_hw_constraint_list constraints_48000 = {
	192	.count = ARRAY_SIZE(rates_48000),
	193	.list = rates_48000,
	194	};
	195
	196	static int cht_aif1_startup(struct snd_pcm_substream *substream)
	197	{
	198	return snd_pcm_hw_constraint_list(substream->runtime, 0,
	199	SNDRV_PCM_HW_PARAM_RATE,
	200	&constraints_48000);
	201	}
	202
	203	static struct snd_soc_ops cht_aif1_ops = {
	204	.startup = cht_aif1_startup,
	205	};
	206
	207	static struct snd_soc_ops cht_be_ssp2_ops = {
	208	.hw_params = cht_aif1_hw_params,
	209	};
	210
	211	static struct snd_soc_dai_link cht_dailink[] = {
	212	/* Front End DAI links */
	213	[MERR_DPCM_AUDIO] = {
	214	.name = "Audio Port",
	215	.stream_name = "Audio",
	216	.cpu_dai_name = "media-cpu-dai",
	217	.codec_dai_name = "snd-soc-dummy-dai",
	218	.codec_name = "snd-soc-dummy",
	219	.platform_name = "sst-mfld-platform",
	220	.ignore_suspend = 1,
	221	.dynamic = 1,
	222	.dpcm_playback = 1,
	223	.dpcm_capture = 1,
	224	.ops = &cht_aif1_ops,
	225	},
	226	[MERR_DPCM_COMPR] = {
	227	.name = "Compressed Port",
	228	.stream_name = "Compress",
229	.cpu_dai_name = "compress-cpu-dai",
230	.codec_dai_name = "snd-soc-dummy-dai",
231	.codec_name = "snd-soc-dummy",
232	.platform_name = "sst-mfld-platform",
233	},
234
235	/* Back End DAI links */
236	{
237	/* SSP2 - Codec */
238	.name = "SSP2-Codec",
239	.be_id = 1,
240	.cpu_dai_name = "ssp2-port",
241	.platform_name = "sst-mfld-platform",
242	.no_pcm = 1,
243	.codec_dai_name = "rt5670-aif1",
244	.codec_name = "i2c-10EC5670:00",
245	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_IB_NF
246	\| SND_SOC_DAIFMT_CBS_CFS,
247	.init = cht_codec_init,
248	.be_hw_params_fixup = cht_codec_fixup,
249	.ignore_suspend = 1,
250	.dpcm_playback = 1,
251	.dpcm_capture = 1,
252	.ops = &cht_be_ssp2_ops,
253	},
254	};
255
256	/* SoC card */
257	static struct snd_soc_card snd_soc_card_cht = {
258	.name = "cherrytrailcraudio",
259	.dai_link = cht_dailink,
260	.num_links = ARRAY_SIZE(cht_dailink),
261	.dapm_widgets = cht_dapm_widgets,
262	.num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
263	.dapm_routes = cht_audio_map,
264	.num_dapm_routes = ARRAY_SIZE(cht_audio_map),
265	.controls = cht_mc_controls,
266	.num_controls = ARRAY_SIZE(cht_mc_controls),
267	};
268
269	static int snd_cht_mc_probe(struct platform_device *pdev)
270	{
271	int ret_val = 0;
272
273	/* register the soc card */
274	snd_soc_card_cht.dev = &pdev->dev;
275	ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_cht);
276	if (ret_val) {
277	dev_err(&pdev->dev,
278	"snd_soc_register_card failed %d\n", ret_val);
279	return ret_val;
280	}
281	platform_set_drvdata(pdev, &snd_soc_card_cht);
282	return ret_val;
283	}
284
285	static struct platform_driver snd_cht_mc_driver = {
286	.driver = {
026da220 ML	287	.name = "cht-bsw-rt5672",
	288	.pm = &snd_soc_pm_ops,
	289	},
	290	.probe = snd_cht_mc_probe,
	291	};
	292
	293	module_platform_driver(snd_cht_mc_driver);
	294
	295	MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
	296	MODULE_AUTHOR("Subhransu S. Prusty, Mengdong Lin");
	297	MODULE_LICENSE("GPL v2");
	298	MODULE_ALIAS("platform:cht-bsw-rt5672");