1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2 //
3 // This file is provided under a dual BSD/GPLv2 license.  When using or
4 // redistributing this file, you may do so under either license.
5 //
6 // Copyright(c) 2018 Intel Corporation. All rights reserved.
7 //
8 // Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
9 //
10 
11 #include <linux/firmware.h>
12 #include <linux/dmi.h>
13 #include <linux/module.h>
14 #include <linux/pci.h>
15 #include <linux/platform_data/x86/soc.h>
16 #include <linux/pm_runtime.h>
17 #include <sound/intel-dsp-config.h>
18 #include <sound/soc-acpi.h>
19 #include <sound/soc-acpi-intel-match.h>
20 #include <sound/sof.h>
21 #include "ops.h"
22 
23 /* platform specific devices */
24 #include "intel/shim.h"
25 #include "intel/hda.h"
26 
27 static char *fw_path;
28 module_param(fw_path, charp, 0444);
29 MODULE_PARM_DESC(fw_path, "alternate path for SOF firmware.");
30 
31 static char *tplg_path;
32 module_param(tplg_path, charp, 0444);
33 MODULE_PARM_DESC(tplg_path, "alternate path for SOF topology.");
34 
35 static char *tplg_filename;
36 module_param(tplg_filename, charp, 0444);
37 MODULE_PARM_DESC(tplg_filename, "alternate filename for SOF topology.");
38 
39 static int sof_pci_debug;
40 module_param_named(sof_pci_debug, sof_pci_debug, int, 0444);
41 MODULE_PARM_DESC(sof_pci_debug, "SOF PCI debug options (0x0 all off)");
42 
43 static const char *sof_dmi_override_tplg_name;
44 static bool sof_dmi_use_community_key;
45 
46 #define SOF_PCI_DISABLE_PM_RUNTIME BIT(0)
47 
sof_tplg_cb(const struct dmi_system_id *id)48 static int sof_tplg_cb(const struct dmi_system_id *id)
49 {
50 	sof_dmi_override_tplg_name = id->driver_data;
51 	return 1;
52 }
53 
54 static const struct dmi_system_id sof_tplg_table[] = {
55 	{
56 		.callback = sof_tplg_cb,
57 		.matches = {
58 			DMI_MATCH(DMI_PRODUCT_FAMILY, "Google_Volteer"),
59 			DMI_MATCH(DMI_OEM_STRING, "AUDIO-MAX98373_ALC5682I_I2S_UP4"),
60 		},
61 		.driver_data = "sof-tgl-rt5682-ssp0-max98373-ssp2.tplg",
62 	},
63 	{}
64 };
65 
66 /* all Up boards use the community key */
up_use_community_key(const struct dmi_system_id *id)67 static int up_use_community_key(const struct dmi_system_id *id)
68 {
69 	sof_dmi_use_community_key = true;
70 	return 1;
71 }
72 
73 /*
74  * For ApolloLake Chromebooks we want to force the use of the Intel production key.
75  * All newer platforms use the community key
76  */
chromebook_use_community_key(const struct dmi_system_id *id)77 static int chromebook_use_community_key(const struct dmi_system_id *id)
78 {
79 	if (!soc_intel_is_apl())
80 		sof_dmi_use_community_key = true;
81 	return 1;
82 }
83 
84 static const struct dmi_system_id community_key_platforms[] = {
85 	{
86 		.ident = "Up boards",
87 		.callback = up_use_community_key,
88 		.matches = {
89 			DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
90 		}
91 	},
92 	{
93 		.ident = "Google Chromebooks",
94 		.callback = chromebook_use_community_key,
95 		.matches = {
96 			DMI_MATCH(DMI_PRODUCT_FAMILY, "Google"),
97 		}
98 	},
99 	{
100 		.ident = "Google firmware",
101 		.callback = chromebook_use_community_key,
102 		.matches = {
103 			DMI_MATCH(DMI_BIOS_VERSION, "Google"),
104 		}
105 	},
106 	{},
107 };
108 
109 #if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
110 static const struct sof_dev_desc bxt_desc = {
111 	.machines		= snd_soc_acpi_intel_bxt_machines,
112 	.use_acpi_target_states	= true,
113 	.resindex_lpe_base	= 0,
114 	.resindex_pcicfg_base	= -1,
115 	.resindex_imr_base	= -1,
116 	.irqindex_host_ipc	= -1,
117 	.resindex_dma_base	= -1,
118 	.chip_info = &apl_chip_info,
119 	.default_fw_path = "intel/sof",
120 	.default_tplg_path = "intel/sof-tplg",
121 	.default_fw_filename = "sof-apl.ri",
122 	.nocodec_tplg_filename = "sof-apl-nocodec.tplg",
123 	.ops = &sof_apl_ops,
124 };
125 #endif
126 
127 #if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE)
128 static const struct sof_dev_desc glk_desc = {
129 	.machines		= snd_soc_acpi_intel_glk_machines,
130 	.use_acpi_target_states	= true,
131 	.resindex_lpe_base	= 0,
132 	.resindex_pcicfg_base	= -1,
133 	.resindex_imr_base	= -1,
134 	.irqindex_host_ipc	= -1,
135 	.resindex_dma_base	= -1,
136 	.chip_info = &apl_chip_info,
137 	.default_fw_path = "intel/sof",
138 	.default_tplg_path = "intel/sof-tplg",
139 	.default_fw_filename = "sof-glk.ri",
140 	.nocodec_tplg_filename = "sof-glk-nocodec.tplg",
141 	.ops = &sof_apl_ops,
142 };
143 #endif
144 
145 #if IS_ENABLED(CONFIG_SND_SOC_SOF_MERRIFIELD)
146 static struct snd_soc_acpi_mach sof_tng_machines[] = {
147 	{
148 		.id = "INT343A",
149 		.drv_name = "edison",
150 		.sof_fw_filename = "sof-byt.ri",
151 		.sof_tplg_filename = "sof-byt.tplg",
152 	},
153 	{}
154 };
155 
156 static const struct sof_dev_desc tng_desc = {
157 	.machines		= sof_tng_machines,
158 	.resindex_lpe_base	= 3,	/* IRAM, but subtract IRAM offset */
159 	.resindex_pcicfg_base	= -1,
160 	.resindex_imr_base	= 0,
161 	.irqindex_host_ipc	= -1,
162 	.resindex_dma_base	= -1,
163 	.chip_info = &tng_chip_info,
164 	.default_fw_path = "intel/sof",
165 	.default_tplg_path = "intel/sof-tplg",
166 	.default_fw_filename = "sof-byt.ri",
167 	.nocodec_tplg_filename = "sof-byt.tplg",
168 	.ops = &sof_tng_ops,
169 };
170 #endif
171 
172 #if IS_ENABLED(CONFIG_SND_SOC_SOF_CANNONLAKE)
173 static const struct sof_dev_desc cnl_desc = {
174 	.machines		= snd_soc_acpi_intel_cnl_machines,
175 	.alt_machines		= snd_soc_acpi_intel_cnl_sdw_machines,
176 	.use_acpi_target_states	= true,
177 	.resindex_lpe_base	= 0,
178 	.resindex_pcicfg_base	= -1,
179 	.resindex_imr_base	= -1,
180 	.irqindex_host_ipc	= -1,
181 	.resindex_dma_base	= -1,
182 	.chip_info = &cnl_chip_info,
183 	.default_fw_path = "intel/sof",
184 	.default_tplg_path = "intel/sof-tplg",
185 	.default_fw_filename = "sof-cnl.ri",
186 	.nocodec_tplg_filename = "sof-cnl-nocodec.tplg",
187 	.ops = &sof_cnl_ops,
188 };
189 #endif
190 
191 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COFFEELAKE)
192 static const struct sof_dev_desc cfl_desc = {
193 	.machines		= snd_soc_acpi_intel_cfl_machines,
194 	.alt_machines		= snd_soc_acpi_intel_cfl_sdw_machines,
195 	.use_acpi_target_states	= true,
196 	.resindex_lpe_base	= 0,
197 	.resindex_pcicfg_base	= -1,
198 	.resindex_imr_base	= -1,
199 	.irqindex_host_ipc	= -1,
200 	.resindex_dma_base	= -1,
201 	.chip_info = &cnl_chip_info,
202 	.default_fw_path = "intel/sof",
203 	.default_tplg_path = "intel/sof-tplg",
204 	.default_fw_filename = "sof-cfl.ri",
205 	.nocodec_tplg_filename = "sof-cnl-nocodec.tplg",
206 	.ops = &sof_cnl_ops,
207 };
208 #endif
209 
210 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMETLAKE)
211 static const struct sof_dev_desc cml_desc = {
212 	.machines		= snd_soc_acpi_intel_cml_machines,
213 	.alt_machines		= snd_soc_acpi_intel_cml_sdw_machines,
214 	.use_acpi_target_states	= true,
215 	.resindex_lpe_base	= 0,
216 	.resindex_pcicfg_base	= -1,
217 	.resindex_imr_base	= -1,
218 	.irqindex_host_ipc	= -1,
219 	.resindex_dma_base	= -1,
220 	.chip_info = &cnl_chip_info,
221 	.default_fw_path = "intel/sof",
222 	.default_tplg_path = "intel/sof-tplg",
223 	.default_fw_filename = "sof-cml.ri",
224 	.nocodec_tplg_filename = "sof-cnl-nocodec.tplg",
225 	.ops = &sof_cnl_ops,
226 };
227 #endif
228 
229 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE)
230 static const struct sof_dev_desc icl_desc = {
231 	.machines               = snd_soc_acpi_intel_icl_machines,
232 	.alt_machines		= snd_soc_acpi_intel_icl_sdw_machines,
233 	.use_acpi_target_states	= true,
234 	.resindex_lpe_base      = 0,
235 	.resindex_pcicfg_base   = -1,
236 	.resindex_imr_base      = -1,
237 	.irqindex_host_ipc      = -1,
238 	.resindex_dma_base      = -1,
239 	.chip_info = &icl_chip_info,
240 	.default_fw_path = "intel/sof",
241 	.default_tplg_path = "intel/sof-tplg",
242 	.default_fw_filename = "sof-icl.ri",
243 	.nocodec_tplg_filename = "sof-icl-nocodec.tplg",
244 	.ops = &sof_cnl_ops,
245 };
246 #endif
247 
248 #if IS_ENABLED(CONFIG_SND_SOC_SOF_TIGERLAKE)
249 static const struct sof_dev_desc tgl_desc = {
250 	.machines               = snd_soc_acpi_intel_tgl_machines,
251 	.alt_machines		= snd_soc_acpi_intel_tgl_sdw_machines,
252 	.use_acpi_target_states	= true,
253 	.resindex_lpe_base      = 0,
254 	.resindex_pcicfg_base   = -1,
255 	.resindex_imr_base      = -1,
256 	.irqindex_host_ipc      = -1,
257 	.resindex_dma_base      = -1,
258 	.chip_info = &tgl_chip_info,
259 	.default_fw_path = "intel/sof",
260 	.default_tplg_path = "intel/sof-tplg",
261 	.default_fw_filename = "sof-tgl.ri",
262 	.nocodec_tplg_filename = "sof-tgl-nocodec.tplg",
263 	.ops = &sof_tgl_ops,
264 };
265 
266 static const struct sof_dev_desc tglh_desc = {
267 	.machines               = snd_soc_acpi_intel_tgl_machines,
268 	.alt_machines		= snd_soc_acpi_intel_tgl_sdw_machines,
269 	.resindex_lpe_base      = 0,
270 	.resindex_pcicfg_base   = -1,
271 	.resindex_imr_base      = -1,
272 	.irqindex_host_ipc      = -1,
273 	.resindex_dma_base      = -1,
274 	.chip_info = &tglh_chip_info,
275 	.default_fw_path = "intel/sof",
276 	.default_tplg_path = "intel/sof-tplg",
277 	.default_fw_filename = "sof-tgl-h.ri",
278 	.nocodec_tplg_filename = "sof-tgl-nocodec.tplg",
279 	.ops = &sof_tgl_ops,
280 };
281 #endif
282 
283 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ELKHARTLAKE)
284 static const struct sof_dev_desc ehl_desc = {
285 	.machines               = snd_soc_acpi_intel_ehl_machines,
286 	.use_acpi_target_states	= true,
287 	.resindex_lpe_base      = 0,
288 	.resindex_pcicfg_base   = -1,
289 	.resindex_imr_base      = -1,
290 	.irqindex_host_ipc      = -1,
291 	.resindex_dma_base      = -1,
292 	.chip_info = &ehl_chip_info,
293 	.default_fw_path = "intel/sof",
294 	.default_tplg_path = "intel/sof-tplg",
295 	.default_fw_filename = "sof-ehl.ri",
296 	.nocodec_tplg_filename = "sof-ehl-nocodec.tplg",
297 	.ops = &sof_cnl_ops,
298 };
299 #endif
300 
301 #if IS_ENABLED(CONFIG_SND_SOC_SOF_JASPERLAKE)
302 static const struct sof_dev_desc jsl_desc = {
303 	.machines               = snd_soc_acpi_intel_jsl_machines,
304 	.use_acpi_target_states	= true,
305 	.resindex_lpe_base      = 0,
306 	.resindex_pcicfg_base   = -1,
307 	.resindex_imr_base      = -1,
308 	.irqindex_host_ipc      = -1,
309 	.resindex_dma_base      = -1,
310 	.chip_info = &jsl_chip_info,
311 	.default_fw_path = "intel/sof",
312 	.default_tplg_path = "intel/sof-tplg",
313 	.default_fw_filename = "sof-jsl.ri",
314 	.nocodec_tplg_filename = "sof-jsl-nocodec.tplg",
315 	.ops = &sof_cnl_ops,
316 };
317 #endif
318 
319 static const struct dev_pm_ops sof_pci_pm = {
320 	.prepare = snd_sof_prepare,
321 	.complete = snd_sof_complete,
322 	SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
323 	SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
324 			   snd_sof_runtime_idle)
325 };
326 
sof_pci_probe_complete(struct device *dev)327 static void sof_pci_probe_complete(struct device *dev)
328 {
329 	dev_dbg(dev, "Completing SOF PCI probe");
330 
331 	if (sof_pci_debug & SOF_PCI_DISABLE_PM_RUNTIME)
332 		return;
333 
334 	/* allow runtime_pm */
335 	pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS);
336 	pm_runtime_use_autosuspend(dev);
337 
338 	/*
339 	 * runtime pm for pci device is "forbidden" by default.
340 	 * so call pm_runtime_allow() to enable it.
341 	 */
342 	pm_runtime_allow(dev);
343 
344 	/* mark last_busy for pm_runtime to make sure not suspend immediately */
345 	pm_runtime_mark_last_busy(dev);
346 
347 	/* follow recommendation in pci-driver.c to decrement usage counter */
348 	pm_runtime_put_noidle(dev);
349 }
350 
sof_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)351 static int sof_pci_probe(struct pci_dev *pci,
352 			 const struct pci_device_id *pci_id)
353 {
354 	struct device *dev = &pci->dev;
355 	const struct sof_dev_desc *desc =
356 		(const struct sof_dev_desc *)pci_id->driver_data;
357 	struct snd_sof_pdata *sof_pdata;
358 	const struct snd_sof_dsp_ops *ops;
359 	int ret;
360 
361 	ret = snd_intel_dsp_driver_probe(pci);
362 	if (ret != SND_INTEL_DSP_DRIVER_ANY && ret != SND_INTEL_DSP_DRIVER_SOF) {
363 		dev_dbg(&pci->dev, "SOF PCI driver not selected, aborting probe\n");
364 		return -ENODEV;
365 	}
366 	dev_dbg(&pci->dev, "PCI DSP detected");
367 
368 	/* get ops for platform */
369 	ops = desc->ops;
370 	if (!ops) {
371 		dev_err(dev, "error: no matching PCI descriptor ops\n");
372 		return -ENODEV;
373 	}
374 
375 	sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
376 	if (!sof_pdata)
377 		return -ENOMEM;
378 
379 	ret = pcim_enable_device(pci);
380 	if (ret < 0)
381 		return ret;
382 
383 	ret = pci_request_regions(pci, "Audio DSP");
384 	if (ret < 0)
385 		return ret;
386 
387 	sof_pdata->name = pci_name(pci);
388 	sof_pdata->desc = (struct sof_dev_desc *)pci_id->driver_data;
389 	sof_pdata->dev = dev;
390 	sof_pdata->fw_filename = desc->default_fw_filename;
391 
392 	/*
393 	 * for platforms using the SOF community key, change the
394 	 * default path automatically to pick the right files from the
395 	 * linux-firmware tree. This can be overridden with the
396 	 * fw_path kernel parameter, e.g. for developers.
397 	 */
398 
399 	/* alternate fw and tplg filenames ? */
400 	if (fw_path) {
401 		sof_pdata->fw_filename_prefix = fw_path;
402 
403 		dev_dbg(dev,
404 			"Module parameter used, changed fw path to %s\n",
405 			sof_pdata->fw_filename_prefix);
406 
407 	} else if (dmi_check_system(community_key_platforms) && sof_dmi_use_community_key) {
408 		sof_pdata->fw_filename_prefix =
409 			devm_kasprintf(dev, GFP_KERNEL, "%s/%s",
410 				       sof_pdata->desc->default_fw_path,
411 				       "community");
412 
413 		dev_dbg(dev,
414 			"Platform uses community key, changed fw path to %s\n",
415 			sof_pdata->fw_filename_prefix);
416 	} else {
417 		sof_pdata->fw_filename_prefix =
418 			sof_pdata->desc->default_fw_path;
419 	}
420 
421 	if (tplg_path)
422 		sof_pdata->tplg_filename_prefix = tplg_path;
423 	else
424 		sof_pdata->tplg_filename_prefix =
425 			sof_pdata->desc->default_tplg_path;
426 
427 	/*
428 	 * the topology filename will be provided in the machine descriptor, unless
429 	 * it is overridden by a module parameter or DMI quirk.
430 	 */
431 	if (tplg_filename) {
432 		sof_pdata->tplg_filename = tplg_filename;
433 
434 		dev_dbg(dev, "Module parameter used, changed tplg filename to %s\n",
435 			sof_pdata->tplg_filename);
436 	} else {
437 		dmi_check_system(sof_tplg_table);
438 		if (sof_dmi_override_tplg_name)
439 			sof_pdata->tplg_filename = sof_dmi_override_tplg_name;
440 	}
441 
442 #if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
443 	/* set callback to enable runtime_pm */
444 	sof_pdata->sof_probe_complete = sof_pci_probe_complete;
445 #endif
446 	/* call sof helper for DSP hardware probe */
447 	ret = snd_sof_device_probe(dev, sof_pdata);
448 	if (ret) {
449 		dev_err(dev, "error: failed to probe DSP hardware!\n");
450 		goto release_regions;
451 	}
452 
453 #if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
454 	sof_pci_probe_complete(dev);
455 #endif
456 
457 	return ret;
458 
459 release_regions:
460 	pci_release_regions(pci);
461 
462 	return ret;
463 }
464 
sof_pci_remove(struct pci_dev *pci)465 static void sof_pci_remove(struct pci_dev *pci)
466 {
467 	/* call sof helper for DSP hardware remove */
468 	snd_sof_device_remove(&pci->dev);
469 
470 	/* follow recommendation in pci-driver.c to increment usage counter */
471 	if (!(sof_pci_debug & SOF_PCI_DISABLE_PM_RUNTIME))
472 		pm_runtime_get_noresume(&pci->dev);
473 
474 	/* release pci regions and disable device */
475 	pci_release_regions(pci);
476 }
477 
478 /* PCI IDs */
479 static const struct pci_device_id sof_pci_ids[] = {
480 #if IS_ENABLED(CONFIG_SND_SOC_SOF_MERRIFIELD)
481 	{ PCI_DEVICE(0x8086, 0x119a),
482 		.driver_data = (unsigned long)&tng_desc},
483 #endif
484 #if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
485 	/* BXT-P & Apollolake */
486 	{ PCI_DEVICE(0x8086, 0x5a98),
487 		.driver_data = (unsigned long)&bxt_desc},
488 	{ PCI_DEVICE(0x8086, 0x1a98),
489 		.driver_data = (unsigned long)&bxt_desc},
490 #endif
491 #if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE)
492 	{ PCI_DEVICE(0x8086, 0x3198),
493 		.driver_data = (unsigned long)&glk_desc},
494 #endif
495 #if IS_ENABLED(CONFIG_SND_SOC_SOF_CANNONLAKE)
496 	{ PCI_DEVICE(0x8086, 0x9dc8),
497 		.driver_data = (unsigned long)&cnl_desc},
498 #endif
499 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COFFEELAKE)
500 	{ PCI_DEVICE(0x8086, 0xa348),
501 		.driver_data = (unsigned long)&cfl_desc},
502 #endif
503 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE)
504 	{ PCI_DEVICE(0x8086, 0x34C8), /* ICL-LP */
505 		.driver_data = (unsigned long)&icl_desc},
506 	{ PCI_DEVICE(0x8086, 0x3dc8), /* ICL-H */
507 		.driver_data = (unsigned long)&icl_desc},
508 
509 #endif
510 #if IS_ENABLED(CONFIG_SND_SOC_SOF_JASPERLAKE)
511 	{ PCI_DEVICE(0x8086, 0x38c8),
512 		.driver_data = (unsigned long)&jsl_desc},
513 	{ PCI_DEVICE(0x8086, 0x4dc8),
514 		.driver_data = (unsigned long)&jsl_desc},
515 #endif
516 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMETLAKE)
517 	{ PCI_DEVICE(0x8086, 0x02c8), /* CML-LP */
518 		.driver_data = (unsigned long)&cml_desc},
519 	{ PCI_DEVICE(0x8086, 0x06c8), /* CML-H */
520 		.driver_data = (unsigned long)&cml_desc},
521 	{ PCI_DEVICE(0x8086, 0xa3f0), /* CML-S */
522 		.driver_data = (unsigned long)&cml_desc},
523 #endif
524 #if IS_ENABLED(CONFIG_SND_SOC_SOF_TIGERLAKE)
525 	{ PCI_DEVICE(0x8086, 0xa0c8), /* TGL-LP */
526 		.driver_data = (unsigned long)&tgl_desc},
527 	{ PCI_DEVICE(0x8086, 0x43c8), /* TGL-H */
528 		.driver_data = (unsigned long)&tglh_desc},
529 
530 #endif
531 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ELKHARTLAKE)
532 	{ PCI_DEVICE(0x8086, 0x4b55),
533 		.driver_data = (unsigned long)&ehl_desc},
534 	{ PCI_DEVICE(0x8086, 0x4b58),
535 		.driver_data = (unsigned long)&ehl_desc},
536 #endif
537 	{ 0, }
538 };
539 MODULE_DEVICE_TABLE(pci, sof_pci_ids);
540 
541 /* pci_driver definition */
542 static struct pci_driver snd_sof_pci_driver = {
543 	.name = "sof-audio-pci",
544 	.id_table = sof_pci_ids,
545 	.probe = sof_pci_probe,
546 	.remove = sof_pci_remove,
547 	.driver = {
548 		.pm = &sof_pci_pm,
549 	},
550 };
551 module_pci_driver(snd_sof_pci_driver);
552 
553 MODULE_LICENSE("Dual BSD/GPL");
554 MODULE_IMPORT_NS(SND_SOC_SOF_MERRIFIELD);
555 MODULE_IMPORT_NS(SND_SOC_SOF_INTEL_HDA_COMMON);
556