1// SPDX-License-Identifier: GPL-2.0-only
  2//
  3// ASoC DPCM Machine driver for Baytrail / Cherrytrail platforms with
  4// CX2072X codec
  5//
  6
  7#include <linux/acpi.h>
  8#include <linux/device.h>
  9#include <linux/gpio/consumer.h>
 10#include <linux/module.h>
 11#include <linux/platform_device.h>
 12#include <linux/slab.h>
 13#include <sound/pcm.h>
 14#include <sound/pcm_params.h>
 15#include <sound/jack.h>
 16#include <sound/soc.h>
 17#include <sound/soc-acpi.h>
 18#include "../../codecs/cx2072x.h"
 19#include "../atom/sst-atom-controls.h"
 20
 21static const struct snd_soc_dapm_widget byt_cht_cx2072x_widgets[] = {
 22	SND_SOC_DAPM_HP("Headphone", NULL),
 23	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 24	SND_SOC_DAPM_MIC("Int Mic", NULL),
 25	SND_SOC_DAPM_SPK("Ext Spk", NULL),
 26};
 27
 28static const struct snd_soc_dapm_route byt_cht_cx2072x_audio_map[] = {
 29	/* External Speakers: HFL, HFR */
 30	{"Headphone", NULL, "PORTA"},
 31	{"Ext Spk", NULL, "PORTG"},
 32	{"PORTC", NULL, "Int Mic"},
 33	{"PORTD", NULL, "Headset Mic"},
 34
 35	{"Playback", NULL, "ssp2 Tx"},
 36	{"ssp2 Tx", NULL, "codec_out0"},
 37	{"ssp2 Tx", NULL, "codec_out1"},
 38	{"codec_in0", NULL, "ssp2 Rx"},
 39	{"codec_in1", NULL, "ssp2 Rx"},
 40	{"ssp2 Rx", NULL, "Capture"},
 41};
 42
 43static const struct snd_kcontrol_new byt_cht_cx2072x_controls[] = {
 44	SOC_DAPM_PIN_SWITCH("Headphone"),
 45	SOC_DAPM_PIN_SWITCH("Headset Mic"),
 46	SOC_DAPM_PIN_SWITCH("Int Mic"),
 47	SOC_DAPM_PIN_SWITCH("Ext Spk"),
 48};
 49
 50static struct snd_soc_jack byt_cht_cx2072x_headset;
 51
 52/* Headset jack detection DAPM pins */
 53static struct snd_soc_jack_pin byt_cht_cx2072x_headset_pins[] = {
 54	{
 55		.pin = "Headset Mic",
 56		.mask = SND_JACK_MICROPHONE,
 57	},
 58	{
 59		.pin = "Headphone",
 60		.mask = SND_JACK_HEADPHONE,
 61	},
 62};
 63
 64static const struct acpi_gpio_params byt_cht_cx2072x_headset_gpios;
 65static const struct acpi_gpio_mapping byt_cht_cx2072x_acpi_gpios[] = {
 66	{ "headset-gpios", &byt_cht_cx2072x_headset_gpios, 1 },
 67	{},
 68};
 69
 70static int byt_cht_cx2072x_init(struct snd_soc_pcm_runtime *rtd)
 71{
 72	struct snd_soc_card *card = rtd->card;
 73	struct snd_soc_component *codec = snd_soc_rtd_to_codec(rtd, 0)->component;
 74	int ret;
 75
 76	if (devm_acpi_dev_add_driver_gpios(codec->dev,
 77					   byt_cht_cx2072x_acpi_gpios))
 78		dev_warn(rtd->dev, "Unable to add GPIO mapping table\n");
 79
 80	card->dapm.idle_bias_off = true;
 81
 82	/* set the default PLL rate, the clock is handled by the codec driver */
 83	ret = snd_soc_dai_set_sysclk(snd_soc_rtd_to_codec(rtd, 0), CX2072X_MCLK_EXTERNAL_PLL,
 84				     19200000, SND_SOC_CLOCK_IN);
 85	if (ret) {
 86		dev_err(rtd->dev, "Could not set sysclk\n");
 87		return ret;
 88	}
 89
 90	ret = snd_soc_card_jack_new_pins(card, "Headset",
 91					 SND_JACK_HEADSET | SND_JACK_BTN_0,
 92					 &byt_cht_cx2072x_headset,
 93					 byt_cht_cx2072x_headset_pins,
 94					 ARRAY_SIZE(byt_cht_cx2072x_headset_pins));
 95	if (ret)
 96		return ret;
 97
 98	snd_soc_component_set_jack(codec, &byt_cht_cx2072x_headset, NULL);
 99
100	snd_soc_dai_set_bclk_ratio(snd_soc_rtd_to_codec(rtd, 0), 50);
101
102	return 0;
103}
104
105static int byt_cht_cx2072x_fixup(struct snd_soc_pcm_runtime *rtd,
106				 struct snd_pcm_hw_params *params)
107{
108	struct snd_interval *rate =
109		hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
110	struct snd_interval *channels =
111		hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
112	int ret;
113
114	/* The DSP will convert the FE rate to 48k, stereo, 24bits */
115	rate->min = rate->max = 48000;
116	channels->min = channels->max = 2;
117
118	/* set SSP2 to 24-bit */
119	params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
120
121	/*
122	 * Default mode for SSP configuration is TDM 4 slot, override config
123	 * with explicit setting to I2S 2ch 24-bit. The word length is set with
124	 * dai_set_tdm_slot() since there is no other API exposed
125	 */
126	ret = snd_soc_dai_set_fmt(snd_soc_rtd_to_cpu(rtd, 0),
127				SND_SOC_DAIFMT_I2S     |
128				SND_SOC_DAIFMT_NB_NF   |
129				SND_SOC_DAIFMT_BP_FP);
130	if (ret < 0) {
131		dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
132		return ret;
133	}
134
135	ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, 24);
136	if (ret < 0) {
137		dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
138		return ret;
139	}
140
141	return 0;
142}
143
144static int byt_cht_cx2072x_aif1_startup(struct snd_pcm_substream *substream)
145{
146	return snd_pcm_hw_constraint_single(substream->runtime,
147					    SNDRV_PCM_HW_PARAM_RATE, 48000);
148}
149
150static const struct snd_soc_ops byt_cht_cx2072x_aif1_ops = {
151	.startup = byt_cht_cx2072x_aif1_startup,
152};
153
154SND_SOC_DAILINK_DEF(dummy,
155	DAILINK_COMP_ARRAY(COMP_DUMMY()));
156
157SND_SOC_DAILINK_DEF(media,
158	DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
159
160SND_SOC_DAILINK_DEF(deepbuffer,
161	DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
162
163SND_SOC_DAILINK_DEF(ssp2,
164	DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
165
166SND_SOC_DAILINK_DEF(cx2072x,
167	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-14F10720:00", "cx2072x-hifi")));
168
169SND_SOC_DAILINK_DEF(platform,
170	DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
171
172static struct snd_soc_dai_link byt_cht_cx2072x_dais[] = {
173	[MERR_DPCM_AUDIO] = {
174		.name = "Audio Port",
175		.stream_name = "Audio",
176		.nonatomic = true,
177		.dynamic = 1,
 
 
178		.ops = &byt_cht_cx2072x_aif1_ops,
179		SND_SOC_DAILINK_REG(media, dummy, platform),
180	},
181	[MERR_DPCM_DEEP_BUFFER] = {
182		.name = "Deep-Buffer Audio Port",
183		.stream_name = "Deep-Buffer Audio",
184		.nonatomic = true,
185		.dynamic = 1,
186		.playback_only = 1,
187		.ops = &byt_cht_cx2072x_aif1_ops,
188		SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
189	},
190	/* back ends */
191	{
192		.name = "SSP2-Codec",
193		.id = 0,
194		.no_pcm = 1,
195		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
196					      | SND_SOC_DAIFMT_CBC_CFC,
197		.init = byt_cht_cx2072x_init,
198		.be_hw_params_fixup = byt_cht_cx2072x_fixup,
 
 
199		SND_SOC_DAILINK_REG(ssp2, cx2072x, platform),
200	},
201};
202
203/* use space before codec name to simplify card ID, and simplify driver name */
204#define SOF_CARD_NAME "bytcht cx2072x" /* card name will be 'sof-bytcht cx2072x' */
205#define SOF_DRIVER_NAME "SOF"
206
207#define CARD_NAME "bytcht-cx2072x"
208#define DRIVER_NAME NULL /* card name will be used for driver name */
209
210/* SoC card */
211static struct snd_soc_card byt_cht_cx2072x_card = {
212	.name = CARD_NAME,
213	.driver_name = DRIVER_NAME,
214	.owner = THIS_MODULE,
215	.dai_link = byt_cht_cx2072x_dais,
216	.num_links = ARRAY_SIZE(byt_cht_cx2072x_dais),
217	.dapm_widgets = byt_cht_cx2072x_widgets,
218	.num_dapm_widgets = ARRAY_SIZE(byt_cht_cx2072x_widgets),
219	.dapm_routes = byt_cht_cx2072x_audio_map,
220	.num_dapm_routes = ARRAY_SIZE(byt_cht_cx2072x_audio_map),
221	.controls = byt_cht_cx2072x_controls,
222	.num_controls = ARRAY_SIZE(byt_cht_cx2072x_controls),
223};
224
225static char codec_name[SND_ACPI_I2C_ID_LEN];
226
227static int snd_byt_cht_cx2072x_probe(struct platform_device *pdev)
228{
229	struct snd_soc_acpi_mach *mach;
230	struct acpi_device *adev;
231	int dai_index = 0;
232	bool sof_parent;
233	int i, ret;
234
235	byt_cht_cx2072x_card.dev = &pdev->dev;
236	mach = dev_get_platdata(&pdev->dev);
237
238	/* fix index of codec dai */
239	for (i = 0; i < ARRAY_SIZE(byt_cht_cx2072x_dais); i++) {
240		if (byt_cht_cx2072x_dais[i].num_codecs &&
241		    !strcmp(byt_cht_cx2072x_dais[i].codecs->name,
242			    "i2c-14F10720:00")) {
243			dai_index = i;
244			break;
245		}
246	}
247
248	/* fixup codec name based on HID */
249	adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
250	if (adev) {
251		snprintf(codec_name, sizeof(codec_name), "i2c-%s",
252			 acpi_dev_name(adev));
253		byt_cht_cx2072x_dais[dai_index].codecs->name = codec_name;
254	} else {
255		dev_err(&pdev->dev, "Error cannot find '%s' dev\n", mach->id);
256		return -ENOENT;
257	}
258
259	acpi_dev_put(adev);
260
261	/* override platform name, if required */
262	ret = snd_soc_fixup_dai_links_platform_name(&byt_cht_cx2072x_card,
263						    mach->mach_params.platform);
264	if (ret)
265		return ret;
266
267	sof_parent = snd_soc_acpi_sof_parent(&pdev->dev);
268
269	/* set card and driver name */
270	if (sof_parent) {
271		byt_cht_cx2072x_card.name = SOF_CARD_NAME;
272		byt_cht_cx2072x_card.driver_name = SOF_DRIVER_NAME;
273	} else {
274		byt_cht_cx2072x_card.name = CARD_NAME;
275		byt_cht_cx2072x_card.driver_name = DRIVER_NAME;
276	}
277
278	/* set pm ops */
279	if (sof_parent)
280		pdev->dev.driver->pm = &snd_soc_pm_ops;
281
282	return devm_snd_soc_register_card(&pdev->dev, &byt_cht_cx2072x_card);
283}
284
285static struct platform_driver snd_byt_cht_cx2072x_driver = {
286	.driver = {
287		.name = "bytcht_cx2072x",
288	},
289	.probe = snd_byt_cht_cx2072x_probe,
290};
291module_platform_driver(snd_byt_cht_cx2072x_driver);
292
293MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail Machine driver");
294MODULE_LICENSE("GPL v2");
295MODULE_ALIAS("platform:bytcht_cx2072x");

  1// SPDX-License-Identifier: GPL-2.0-only
  2//
  3// ASoC DPCM Machine driver for Baytrail / Cherrytrail platforms with
  4// CX2072X codec
  5//
  6
  7#include <linux/acpi.h>
  8#include <linux/device.h>
  9#include <linux/gpio/consumer.h>
 10#include <linux/module.h>
 11#include <linux/platform_device.h>
 12#include <linux/slab.h>
 13#include <sound/pcm.h>
 14#include <sound/pcm_params.h>
 15#include <sound/jack.h>
 16#include <sound/soc.h>
 17#include <sound/soc-acpi.h>
 18#include "../../codecs/cx2072x.h"
 19#include "../atom/sst-atom-controls.h"
 20
 21static const struct snd_soc_dapm_widget byt_cht_cx2072x_widgets[] = {
 22	SND_SOC_DAPM_HP("Headphone", NULL),
 23	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 24	SND_SOC_DAPM_MIC("Int Mic", NULL),
 25	SND_SOC_DAPM_SPK("Ext Spk", NULL),
 26};
 27
 28static const struct snd_soc_dapm_route byt_cht_cx2072x_audio_map[] = {
 29	/* External Speakers: HFL, HFR */
 30	{"Headphone", NULL, "PORTA"},
 31	{"Ext Spk", NULL, "PORTG"},
 32	{"PORTC", NULL, "Int Mic"},
 33	{"PORTD", NULL, "Headset Mic"},
 34
 35	{"Playback", NULL, "ssp2 Tx"},
 36	{"ssp2 Tx", NULL, "codec_out0"},
 37	{"ssp2 Tx", NULL, "codec_out1"},
 38	{"codec_in0", NULL, "ssp2 Rx"},
 39	{"codec_in1", NULL, "ssp2 Rx"},
 40	{"ssp2 Rx", NULL, "Capture"},
 41};
 42
 43static const struct snd_kcontrol_new byt_cht_cx2072x_controls[] = {
 44	SOC_DAPM_PIN_SWITCH("Headphone"),
 45	SOC_DAPM_PIN_SWITCH("Headset Mic"),
 46	SOC_DAPM_PIN_SWITCH("Int Mic"),
 47	SOC_DAPM_PIN_SWITCH("Ext Spk"),
 48};
 49
 50static struct snd_soc_jack byt_cht_cx2072x_headset;
 51
 52/* Headset jack detection DAPM pins */
 53static struct snd_soc_jack_pin byt_cht_cx2072x_headset_pins[] = {
 54	{
 55		.pin = "Headset Mic",
 56		.mask = SND_JACK_MICROPHONE,
 57	},
 58	{
 59		.pin = "Headphone",
 60		.mask = SND_JACK_HEADPHONE,
 61	},
 62};
 63
 64static const struct acpi_gpio_params byt_cht_cx2072x_headset_gpios;
 65static const struct acpi_gpio_mapping byt_cht_cx2072x_acpi_gpios[] = {
 66	{ "headset-gpios", &byt_cht_cx2072x_headset_gpios, 1 },
 67	{},
 68};
 69
 70static int byt_cht_cx2072x_init(struct snd_soc_pcm_runtime *rtd)
 71{
 72	struct snd_soc_card *card = rtd->card;
 73	struct snd_soc_component *codec = snd_soc_rtd_to_codec(rtd, 0)->component;
 74	int ret;
 75
 76	if (devm_acpi_dev_add_driver_gpios(codec->dev,
 77					   byt_cht_cx2072x_acpi_gpios))
 78		dev_warn(rtd->dev, "Unable to add GPIO mapping table\n");
 79
 80	card->dapm.idle_bias_off = true;
 81
 82	/* set the default PLL rate, the clock is handled by the codec driver */
 83	ret = snd_soc_dai_set_sysclk(snd_soc_rtd_to_codec(rtd, 0), CX2072X_MCLK_EXTERNAL_PLL,
 84				     19200000, SND_SOC_CLOCK_IN);
 85	if (ret) {
 86		dev_err(rtd->dev, "Could not set sysclk\n");
 87		return ret;
 88	}
 89
 90	ret = snd_soc_card_jack_new_pins(card, "Headset",
 91					 SND_JACK_HEADSET | SND_JACK_BTN_0,
 92					 &byt_cht_cx2072x_headset,
 93					 byt_cht_cx2072x_headset_pins,
 94					 ARRAY_SIZE(byt_cht_cx2072x_headset_pins));
 95	if (ret)
 96		return ret;
 97
 98	snd_soc_component_set_jack(codec, &byt_cht_cx2072x_headset, NULL);
 99
100	snd_soc_dai_set_bclk_ratio(snd_soc_rtd_to_codec(rtd, 0), 50);
101
102	return 0;
103}
104
105static int byt_cht_cx2072x_fixup(struct snd_soc_pcm_runtime *rtd,
106				 struct snd_pcm_hw_params *params)
107{
108	struct snd_interval *rate =
109		hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
110	struct snd_interval *channels =
111		hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
112	int ret;
113
114	/* The DSP will convert the FE rate to 48k, stereo, 24bits */
115	rate->min = rate->max = 48000;
116	channels->min = channels->max = 2;
117
118	/* set SSP2 to 24-bit */
119	params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
120
121	/*
122	 * Default mode for SSP configuration is TDM 4 slot, override config
123	 * with explicit setting to I2S 2ch 24-bit. The word length is set with
124	 * dai_set_tdm_slot() since there is no other API exposed
125	 */
126	ret = snd_soc_dai_set_fmt(snd_soc_rtd_to_cpu(rtd, 0),
127				SND_SOC_DAIFMT_I2S     |
128				SND_SOC_DAIFMT_NB_NF   |
129				SND_SOC_DAIFMT_BP_FP);
130	if (ret < 0) {
131		dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
132		return ret;
133	}
134
135	ret = snd_soc_dai_set_tdm_slot(snd_soc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, 24);
136	if (ret < 0) {
137		dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
138		return ret;
139	}
140
141	return 0;
142}
143
144static int byt_cht_cx2072x_aif1_startup(struct snd_pcm_substream *substream)
145{
146	return snd_pcm_hw_constraint_single(substream->runtime,
147					    SNDRV_PCM_HW_PARAM_RATE, 48000);
148}
149
150static const struct snd_soc_ops byt_cht_cx2072x_aif1_ops = {
151	.startup = byt_cht_cx2072x_aif1_startup,
152};
153
154SND_SOC_DAILINK_DEF(dummy,
155	DAILINK_COMP_ARRAY(COMP_DUMMY()));
156
157SND_SOC_DAILINK_DEF(media,
158	DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
159
160SND_SOC_DAILINK_DEF(deepbuffer,
161	DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
162
163SND_SOC_DAILINK_DEF(ssp2,
164	DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
165
166SND_SOC_DAILINK_DEF(cx2072x,
167	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-14F10720:00", "cx2072x-hifi")));
168
169SND_SOC_DAILINK_DEF(platform,
170	DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
171
172static struct snd_soc_dai_link byt_cht_cx2072x_dais[] = {
173	[MERR_DPCM_AUDIO] = {
174		.name = "Audio Port",
175		.stream_name = "Audio",
176		.nonatomic = true,
177		.dynamic = 1,
178		.dpcm_playback = 1,
179		.dpcm_capture = 1,
180		.ops = &byt_cht_cx2072x_aif1_ops,
181		SND_SOC_DAILINK_REG(media, dummy, platform),
182	},
183	[MERR_DPCM_DEEP_BUFFER] = {
184		.name = "Deep-Buffer Audio Port",
185		.stream_name = "Deep-Buffer Audio",
186		.nonatomic = true,
187		.dynamic = 1,
188		.dpcm_playback = 1,
189		.ops = &byt_cht_cx2072x_aif1_ops,
190		SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
191	},
192	/* back ends */
193	{
194		.name = "SSP2-Codec",
195		.id = 0,
196		.no_pcm = 1,
197		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
198					      | SND_SOC_DAIFMT_CBC_CFC,
199		.init = byt_cht_cx2072x_init,
200		.be_hw_params_fixup = byt_cht_cx2072x_fixup,
201		.dpcm_playback = 1,
202		.dpcm_capture = 1,
203		SND_SOC_DAILINK_REG(ssp2, cx2072x, platform),
204	},
205};
206
207/* use space before codec name to simplify card ID, and simplify driver name */
208#define SOF_CARD_NAME "bytcht cx2072x" /* card name will be 'sof-bytcht cx2072x' */
209#define SOF_DRIVER_NAME "SOF"
210
211#define CARD_NAME "bytcht-cx2072x"
212#define DRIVER_NAME NULL /* card name will be used for driver name */
213
214/* SoC card */
215static struct snd_soc_card byt_cht_cx2072x_card = {
216	.name = CARD_NAME,
217	.driver_name = DRIVER_NAME,
218	.owner = THIS_MODULE,
219	.dai_link = byt_cht_cx2072x_dais,
220	.num_links = ARRAY_SIZE(byt_cht_cx2072x_dais),
221	.dapm_widgets = byt_cht_cx2072x_widgets,
222	.num_dapm_widgets = ARRAY_SIZE(byt_cht_cx2072x_widgets),
223	.dapm_routes = byt_cht_cx2072x_audio_map,
224	.num_dapm_routes = ARRAY_SIZE(byt_cht_cx2072x_audio_map),
225	.controls = byt_cht_cx2072x_controls,
226	.num_controls = ARRAY_SIZE(byt_cht_cx2072x_controls),
227};
228
229static char codec_name[SND_ACPI_I2C_ID_LEN];
230
231static int snd_byt_cht_cx2072x_probe(struct platform_device *pdev)
232{
233	struct snd_soc_acpi_mach *mach;
234	struct acpi_device *adev;
235	int dai_index = 0;
236	bool sof_parent;
237	int i, ret;
238
239	byt_cht_cx2072x_card.dev = &pdev->dev;
240	mach = dev_get_platdata(&pdev->dev);
241
242	/* fix index of codec dai */
243	for (i = 0; i < ARRAY_SIZE(byt_cht_cx2072x_dais); i++) {
244		if (byt_cht_cx2072x_dais[i].codecs->name &&
245		    !strcmp(byt_cht_cx2072x_dais[i].codecs->name,
246			    "i2c-14F10720:00")) {
247			dai_index = i;
248			break;
249		}
250	}
251
252	/* fixup codec name based on HID */
253	adev = acpi_dev_get_first_match_dev(mach->id, NULL, -1);
254	if (adev) {
255		snprintf(codec_name, sizeof(codec_name), "i2c-%s",
256			 acpi_dev_name(adev));
257		byt_cht_cx2072x_dais[dai_index].codecs->name = codec_name;
 
 
 
258	}
 
259	acpi_dev_put(adev);
260
261	/* override platform name, if required */
262	ret = snd_soc_fixup_dai_links_platform_name(&byt_cht_cx2072x_card,
263						    mach->mach_params.platform);
264	if (ret)
265		return ret;
266
267	sof_parent = snd_soc_acpi_sof_parent(&pdev->dev);
268
269	/* set card and driver name */
270	if (sof_parent) {
271		byt_cht_cx2072x_card.name = SOF_CARD_NAME;
272		byt_cht_cx2072x_card.driver_name = SOF_DRIVER_NAME;
273	} else {
274		byt_cht_cx2072x_card.name = CARD_NAME;
275		byt_cht_cx2072x_card.driver_name = DRIVER_NAME;
276	}
277
278	/* set pm ops */
279	if (sof_parent)
280		pdev->dev.driver->pm = &snd_soc_pm_ops;
281
282	return devm_snd_soc_register_card(&pdev->dev, &byt_cht_cx2072x_card);
283}
284
285static struct platform_driver snd_byt_cht_cx2072x_driver = {
286	.driver = {
287		.name = "bytcht_cx2072x",
288	},
289	.probe = snd_byt_cht_cx2072x_probe,
290};
291module_platform_driver(snd_byt_cht_cx2072x_driver);
292
293MODULE_DESCRIPTION("ASoC Intel(R) Baytrail/Cherrytrail Machine driver");
294MODULE_LICENSE("GPL v2");
295MODULE_ALIAS("platform:bytcht_cx2072x");