xref: /openbmc/linux/sound/soc/sof/sof-pci-dev.c (revision b5f184fb)
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/pm_runtime.h>
16 #include <sound/intel-dsp-config.h>
17 #include <sound/soc-acpi.h>
18 #include <sound/soc-acpi-intel-match.h>
19 #include <sound/sof.h>
20 #include "ops.h"
21 
22 /* platform specific devices */
23 #include "intel/shim.h"
24 #include "intel/hda.h"
25 
26 static char *fw_path;
27 module_param(fw_path, charp, 0444);
28 MODULE_PARM_DESC(fw_path, "alternate path for SOF firmware.");
29 
30 static char *tplg_path;
31 module_param(tplg_path, charp, 0444);
32 MODULE_PARM_DESC(tplg_path, "alternate path for SOF topology.");
33 
34 static int sof_pci_debug;
35 module_param_named(sof_pci_debug, sof_pci_debug, int, 0444);
36 MODULE_PARM_DESC(sof_pci_debug, "SOF PCI debug options (0x0 all off)");
37 
38 static const char *sof_override_tplg_name;
39 
40 #define SOF_PCI_DISABLE_PM_RUNTIME BIT(0)
41 
42 static int sof_tplg_cb(const struct dmi_system_id *id)
43 {
44 	sof_override_tplg_name = id->driver_data;
45 	return 1;
46 }
47 
48 static const struct dmi_system_id sof_tplg_table[] = {
49 	{
50 		.callback = sof_tplg_cb,
51 		.matches = {
52 			DMI_MATCH(DMI_PRODUCT_FAMILY, "Google_Volteer"),
53 			DMI_MATCH(DMI_OEM_STRING, "AUDIO-MAX98373_ALC5682I_I2S_UP4"),
54 		},
55 		.driver_data = "sof-tgl-rt5682-ssp0-max98373-ssp2.tplg",
56 	},
57 	{}
58 };
59 
60 static const struct dmi_system_id community_key_platforms[] = {
61 	{
62 		.ident = "Up Squared",
63 		.matches = {
64 			DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
65 			DMI_MATCH(DMI_BOARD_NAME, "UP-APL01"),
66 		}
67 	},
68 	{
69 		.ident = "Up Extreme",
70 		.matches = {
71 			DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
72 			DMI_MATCH(DMI_BOARD_NAME, "UP-WHL01"),
73 		}
74 	},
75 	{
76 		.ident = "Google Chromebooks",
77 		.matches = {
78 			DMI_MATCH(DMI_SYS_VENDOR, "Google"),
79 		}
80 	},
81 	{},
82 };
83 
84 #if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
85 static const struct sof_dev_desc bxt_desc = {
86 	.machines		= snd_soc_acpi_intel_bxt_machines,
87 	.use_acpi_target_states	= true,
88 	.resindex_lpe_base	= 0,
89 	.resindex_pcicfg_base	= -1,
90 	.resindex_imr_base	= -1,
91 	.irqindex_host_ipc	= -1,
92 	.resindex_dma_base	= -1,
93 	.chip_info = &apl_chip_info,
94 	.default_fw_path = "intel/sof",
95 	.default_tplg_path = "intel/sof-tplg",
96 	.default_fw_filename = "sof-apl.ri",
97 	.nocodec_tplg_filename = "sof-apl-nocodec.tplg",
98 	.ops = &sof_apl_ops,
99 };
100 #endif
101 
102 #if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE)
103 static const struct sof_dev_desc glk_desc = {
104 	.machines		= snd_soc_acpi_intel_glk_machines,
105 	.use_acpi_target_states	= true,
106 	.resindex_lpe_base	= 0,
107 	.resindex_pcicfg_base	= -1,
108 	.resindex_imr_base	= -1,
109 	.irqindex_host_ipc	= -1,
110 	.resindex_dma_base	= -1,
111 	.chip_info = &apl_chip_info,
112 	.default_fw_path = "intel/sof",
113 	.default_tplg_path = "intel/sof-tplg",
114 	.default_fw_filename = "sof-glk.ri",
115 	.nocodec_tplg_filename = "sof-glk-nocodec.tplg",
116 	.ops = &sof_apl_ops,
117 };
118 #endif
119 
120 #if IS_ENABLED(CONFIG_SND_SOC_SOF_MERRIFIELD)
121 static struct snd_soc_acpi_mach sof_tng_machines[] = {
122 	{
123 		.id = "INT343A",
124 		.drv_name = "edison",
125 		.sof_fw_filename = "sof-byt.ri",
126 		.sof_tplg_filename = "sof-byt.tplg",
127 	},
128 	{}
129 };
130 
131 static const struct sof_dev_desc tng_desc = {
132 	.machines		= sof_tng_machines,
133 	.resindex_lpe_base	= 3,	/* IRAM, but subtract IRAM offset */
134 	.resindex_pcicfg_base	= -1,
135 	.resindex_imr_base	= 0,
136 	.irqindex_host_ipc	= -1,
137 	.resindex_dma_base	= -1,
138 	.chip_info = &tng_chip_info,
139 	.default_fw_path = "intel/sof",
140 	.default_tplg_path = "intel/sof-tplg",
141 	.default_fw_filename = "sof-byt.ri",
142 	.nocodec_tplg_filename = "sof-byt.tplg",
143 	.ops = &sof_tng_ops,
144 };
145 #endif
146 
147 #if IS_ENABLED(CONFIG_SND_SOC_SOF_CANNONLAKE)
148 static const struct sof_dev_desc cnl_desc = {
149 	.machines		= snd_soc_acpi_intel_cnl_machines,
150 	.alt_machines		= snd_soc_acpi_intel_cnl_sdw_machines,
151 	.use_acpi_target_states	= true,
152 	.resindex_lpe_base	= 0,
153 	.resindex_pcicfg_base	= -1,
154 	.resindex_imr_base	= -1,
155 	.irqindex_host_ipc	= -1,
156 	.resindex_dma_base	= -1,
157 	.chip_info = &cnl_chip_info,
158 	.default_fw_path = "intel/sof",
159 	.default_tplg_path = "intel/sof-tplg",
160 	.default_fw_filename = "sof-cnl.ri",
161 	.nocodec_tplg_filename = "sof-cnl-nocodec.tplg",
162 	.ops = &sof_cnl_ops,
163 };
164 #endif
165 
166 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COFFEELAKE)
167 static const struct sof_dev_desc cfl_desc = {
168 	.machines		= snd_soc_acpi_intel_cfl_machines,
169 	.alt_machines		= snd_soc_acpi_intel_cfl_sdw_machines,
170 	.use_acpi_target_states	= true,
171 	.resindex_lpe_base	= 0,
172 	.resindex_pcicfg_base	= -1,
173 	.resindex_imr_base	= -1,
174 	.irqindex_host_ipc	= -1,
175 	.resindex_dma_base	= -1,
176 	.chip_info = &cnl_chip_info,
177 	.default_fw_path = "intel/sof",
178 	.default_tplg_path = "intel/sof-tplg",
179 	.default_fw_filename = "sof-cfl.ri",
180 	.nocodec_tplg_filename = "sof-cnl-nocodec.tplg",
181 	.ops = &sof_cnl_ops,
182 };
183 #endif
184 
185 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMETLAKE)
186 static const struct sof_dev_desc cml_desc = {
187 	.machines		= snd_soc_acpi_intel_cml_machines,
188 	.alt_machines		= snd_soc_acpi_intel_cml_sdw_machines,
189 	.use_acpi_target_states	= true,
190 	.resindex_lpe_base	= 0,
191 	.resindex_pcicfg_base	= -1,
192 	.resindex_imr_base	= -1,
193 	.irqindex_host_ipc	= -1,
194 	.resindex_dma_base	= -1,
195 	.chip_info = &cnl_chip_info,
196 	.default_fw_path = "intel/sof",
197 	.default_tplg_path = "intel/sof-tplg",
198 	.default_fw_filename = "sof-cml.ri",
199 	.nocodec_tplg_filename = "sof-cnl-nocodec.tplg",
200 	.ops = &sof_cnl_ops,
201 };
202 #endif
203 
204 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE)
205 static const struct sof_dev_desc icl_desc = {
206 	.machines               = snd_soc_acpi_intel_icl_machines,
207 	.alt_machines		= snd_soc_acpi_intel_icl_sdw_machines,
208 	.use_acpi_target_states	= true,
209 	.resindex_lpe_base      = 0,
210 	.resindex_pcicfg_base   = -1,
211 	.resindex_imr_base      = -1,
212 	.irqindex_host_ipc      = -1,
213 	.resindex_dma_base      = -1,
214 	.chip_info = &icl_chip_info,
215 	.default_fw_path = "intel/sof",
216 	.default_tplg_path = "intel/sof-tplg",
217 	.default_fw_filename = "sof-icl.ri",
218 	.nocodec_tplg_filename = "sof-icl-nocodec.tplg",
219 	.ops = &sof_icl_ops,
220 };
221 #endif
222 
223 #if IS_ENABLED(CONFIG_SND_SOC_SOF_TIGERLAKE) || IS_ENABLED(CONFIG_SND_SOC_SOF_ALDERLAKE)
224 static const struct sof_dev_desc tgl_desc = {
225 	.machines               = snd_soc_acpi_intel_tgl_machines,
226 	.alt_machines		= snd_soc_acpi_intel_tgl_sdw_machines,
227 	.use_acpi_target_states	= true,
228 	.resindex_lpe_base      = 0,
229 	.resindex_pcicfg_base   = -1,
230 	.resindex_imr_base      = -1,
231 	.irqindex_host_ipc      = -1,
232 	.resindex_dma_base      = -1,
233 	.chip_info = &tgl_chip_info,
234 	.default_fw_path = "intel/sof",
235 	.default_tplg_path = "intel/sof-tplg",
236 	.default_fw_filename = "sof-tgl.ri",
237 	.nocodec_tplg_filename = "sof-tgl-nocodec.tplg",
238 	.ops = &sof_tgl_ops,
239 };
240 #endif
241 
242 #if IS_ENABLED(CONFIG_SND_SOC_SOF_TIGERLAKE)
243 static const struct sof_dev_desc tglh_desc = {
244 	.machines               = snd_soc_acpi_intel_tgl_machines,
245 	.alt_machines		= snd_soc_acpi_intel_tgl_sdw_machines,
246 	.resindex_lpe_base      = 0,
247 	.resindex_pcicfg_base   = -1,
248 	.resindex_imr_base      = -1,
249 	.irqindex_host_ipc      = -1,
250 	.resindex_dma_base      = -1,
251 	.chip_info = &tglh_chip_info,
252 	.default_fw_path = "intel/sof",
253 	.default_tplg_path = "intel/sof-tplg",
254 	.default_fw_filename = "sof-tgl-h.ri",
255 	.nocodec_tplg_filename = "sof-tgl-nocodec.tplg",
256 	.ops = &sof_tgl_ops,
257 };
258 #endif
259 
260 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ELKHARTLAKE)
261 static const struct sof_dev_desc ehl_desc = {
262 	.machines               = snd_soc_acpi_intel_ehl_machines,
263 	.use_acpi_target_states	= true,
264 	.resindex_lpe_base      = 0,
265 	.resindex_pcicfg_base   = -1,
266 	.resindex_imr_base      = -1,
267 	.irqindex_host_ipc      = -1,
268 	.resindex_dma_base      = -1,
269 	.chip_info = &ehl_chip_info,
270 	.default_fw_path = "intel/sof",
271 	.default_tplg_path = "intel/sof-tplg",
272 	.default_fw_filename = "sof-ehl.ri",
273 	.nocodec_tplg_filename = "sof-ehl-nocodec.tplg",
274 	.ops = &sof_cnl_ops,
275 };
276 #endif
277 
278 #if IS_ENABLED(CONFIG_SND_SOC_SOF_JASPERLAKE)
279 static const struct sof_dev_desc jsl_desc = {
280 	.machines               = snd_soc_acpi_intel_jsl_machines,
281 	.use_acpi_target_states	= true,
282 	.resindex_lpe_base      = 0,
283 	.resindex_pcicfg_base   = -1,
284 	.resindex_imr_base      = -1,
285 	.irqindex_host_ipc      = -1,
286 	.resindex_dma_base      = -1,
287 	.chip_info = &jsl_chip_info,
288 	.default_fw_path = "intel/sof",
289 	.default_tplg_path = "intel/sof-tplg",
290 	.default_fw_filename = "sof-jsl.ri",
291 	.nocodec_tplg_filename = "sof-jsl-nocodec.tplg",
292 	.ops = &sof_cnl_ops,
293 };
294 #endif
295 
296 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ALDERLAKE)
297 static const struct sof_dev_desc adls_desc = {
298 	.machines               = snd_soc_acpi_intel_adl_machines,
299 	.alt_machines           = snd_soc_acpi_intel_adl_sdw_machines,
300 	.resindex_lpe_base      = 0,
301 	.resindex_pcicfg_base   = -1,
302 	.resindex_imr_base      = -1,
303 	.irqindex_host_ipc      = -1,
304 	.resindex_dma_base      = -1,
305 	.chip_info = &adls_chip_info,
306 	.default_fw_path = "intel/sof",
307 	.default_tplg_path = "intel/sof-tplg",
308 	.default_fw_filename = "sof-adl-s.ri",
309 	.nocodec_tplg_filename = "sof-adl-nocodec.tplg",
310 	.ops = &sof_tgl_ops,
311 };
312 #endif
313 
314 static const struct dev_pm_ops sof_pci_pm = {
315 	.prepare = snd_sof_prepare,
316 	.complete = snd_sof_complete,
317 	SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
318 	SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
319 			   snd_sof_runtime_idle)
320 };
321 
322 static void sof_pci_probe_complete(struct device *dev)
323 {
324 	dev_dbg(dev, "Completing SOF PCI probe");
325 
326 	if (sof_pci_debug & SOF_PCI_DISABLE_PM_RUNTIME)
327 		return;
328 
329 	/* allow runtime_pm */
330 	pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS);
331 	pm_runtime_use_autosuspend(dev);
332 
333 	/*
334 	 * runtime pm for pci device is "forbidden" by default.
335 	 * so call pm_runtime_allow() to enable it.
336 	 */
337 	pm_runtime_allow(dev);
338 
339 	/* mark last_busy for pm_runtime to make sure not suspend immediately */
340 	pm_runtime_mark_last_busy(dev);
341 
342 	/* follow recommendation in pci-driver.c to decrement usage counter */
343 	pm_runtime_put_noidle(dev);
344 }
345 
346 static int sof_pci_probe(struct pci_dev *pci,
347 			 const struct pci_device_id *pci_id)
348 {
349 	struct device *dev = &pci->dev;
350 	const struct sof_dev_desc *desc =
351 		(const struct sof_dev_desc *)pci_id->driver_data;
352 	struct snd_sof_pdata *sof_pdata;
353 	const struct snd_sof_dsp_ops *ops;
354 	int ret;
355 
356 	if (IS_REACHABLE(CONFIG_SND_INTEL_DSP_CONFIG)) {
357 		ret = snd_intel_dsp_driver_probe(pci);
358 		if (ret != SND_INTEL_DSP_DRIVER_ANY && ret != SND_INTEL_DSP_DRIVER_SOF) {
359 			dev_dbg(&pci->dev, "SOF PCI driver not selected, aborting probe\n");
360 			return -ENODEV;
361 		}
362 	}
363 	dev_dbg(&pci->dev, "PCI DSP detected");
364 
365 	/* get ops for platform */
366 	ops = desc->ops;
367 	if (!ops) {
368 		dev_err(dev, "error: no matching PCI descriptor ops\n");
369 		return -ENODEV;
370 	}
371 
372 	sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
373 	if (!sof_pdata)
374 		return -ENOMEM;
375 
376 	ret = pcim_enable_device(pci);
377 	if (ret < 0)
378 		return ret;
379 
380 	ret = pci_request_regions(pci, "Audio DSP");
381 	if (ret < 0)
382 		return ret;
383 
384 	sof_pdata->name = pci_name(pci);
385 	sof_pdata->desc = (struct sof_dev_desc *)pci_id->driver_data;
386 	sof_pdata->dev = dev;
387 	sof_pdata->fw_filename = desc->default_fw_filename;
388 
389 	/*
390 	 * for platforms using the SOF community key, change the
391 	 * default path automatically to pick the right files from the
392 	 * linux-firmware tree. This can be overridden with the
393 	 * fw_path kernel parameter, e.g. for developers.
394 	 */
395 
396 	/* alternate fw and tplg filenames ? */
397 	if (fw_path) {
398 		sof_pdata->fw_filename_prefix = fw_path;
399 
400 		dev_dbg(dev,
401 			"Module parameter used, changed fw path to %s\n",
402 			sof_pdata->fw_filename_prefix);
403 
404 	} else if (dmi_check_system(community_key_platforms)) {
405 		sof_pdata->fw_filename_prefix =
406 			devm_kasprintf(dev, GFP_KERNEL, "%s/%s",
407 				       sof_pdata->desc->default_fw_path,
408 				       "community");
409 
410 		dev_dbg(dev,
411 			"Platform uses community key, changed fw path to %s\n",
412 			sof_pdata->fw_filename_prefix);
413 	} else {
414 		sof_pdata->fw_filename_prefix =
415 			sof_pdata->desc->default_fw_path;
416 	}
417 
418 	if (tplg_path)
419 		sof_pdata->tplg_filename_prefix = tplg_path;
420 	else
421 		sof_pdata->tplg_filename_prefix =
422 			sof_pdata->desc->default_tplg_path;
423 
424 	dmi_check_system(sof_tplg_table);
425 	if (sof_override_tplg_name)
426 		sof_pdata->tplg_filename = sof_override_tplg_name;
427 
428 #if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
429 	/* set callback to enable runtime_pm */
430 	sof_pdata->sof_probe_complete = sof_pci_probe_complete;
431 #endif
432 	/* call sof helper for DSP hardware probe */
433 	ret = snd_sof_device_probe(dev, sof_pdata);
434 	if (ret) {
435 		dev_err(dev, "error: failed to probe DSP hardware!\n");
436 		goto release_regions;
437 	}
438 
439 #if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
440 	sof_pci_probe_complete(dev);
441 #endif
442 
443 	return ret;
444 
445 release_regions:
446 	pci_release_regions(pci);
447 
448 	return ret;
449 }
450 
451 static void sof_pci_remove(struct pci_dev *pci)
452 {
453 	/* call sof helper for DSP hardware remove */
454 	snd_sof_device_remove(&pci->dev);
455 
456 	/* follow recommendation in pci-driver.c to increment usage counter */
457 	if (snd_sof_device_probe_completed(&pci->dev) &&
458 	    !(sof_pci_debug & SOF_PCI_DISABLE_PM_RUNTIME))
459 		pm_runtime_get_noresume(&pci->dev);
460 
461 	/* release pci regions and disable device */
462 	pci_release_regions(pci);
463 }
464 
465 static void sof_pci_shutdown(struct pci_dev *pci)
466 {
467 	snd_sof_device_shutdown(&pci->dev);
468 }
469 
470 /* PCI IDs */
471 static const struct pci_device_id sof_pci_ids[] = {
472 #if IS_ENABLED(CONFIG_SND_SOC_SOF_MERRIFIELD)
473 	{ PCI_DEVICE(0x8086, 0x119a),
474 		.driver_data = (unsigned long)&tng_desc},
475 #endif
476 #if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
477 	/* BXT-P & Apollolake */
478 	{ PCI_DEVICE(0x8086, 0x5a98),
479 		.driver_data = (unsigned long)&bxt_desc},
480 	{ PCI_DEVICE(0x8086, 0x1a98),
481 		.driver_data = (unsigned long)&bxt_desc},
482 #endif
483 #if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE)
484 	{ PCI_DEVICE(0x8086, 0x3198),
485 		.driver_data = (unsigned long)&glk_desc},
486 #endif
487 #if IS_ENABLED(CONFIG_SND_SOC_SOF_CANNONLAKE)
488 	{ PCI_DEVICE(0x8086, 0x9dc8),
489 		.driver_data = (unsigned long)&cnl_desc},
490 #endif
491 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COFFEELAKE)
492 	{ PCI_DEVICE(0x8086, 0xa348),
493 		.driver_data = (unsigned long)&cfl_desc},
494 #endif
495 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE)
496 	{ PCI_DEVICE(0x8086, 0x34C8), /* ICL-LP */
497 		.driver_data = (unsigned long)&icl_desc},
498 	{ PCI_DEVICE(0x8086, 0x3dc8), /* ICL-H */
499 		.driver_data = (unsigned long)&icl_desc},
500 
501 #endif
502 #if IS_ENABLED(CONFIG_SND_SOC_SOF_JASPERLAKE)
503 	{ PCI_DEVICE(0x8086, 0x38c8),
504 		.driver_data = (unsigned long)&jsl_desc},
505 	{ PCI_DEVICE(0x8086, 0x4dc8),
506 		.driver_data = (unsigned long)&jsl_desc},
507 #endif
508 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMETLAKE)
509 	{ PCI_DEVICE(0x8086, 0x02c8), /* CML-LP */
510 		.driver_data = (unsigned long)&cml_desc},
511 	{ PCI_DEVICE(0x8086, 0x06c8), /* CML-H */
512 		.driver_data = (unsigned long)&cml_desc},
513 	{ PCI_DEVICE(0x8086, 0xa3f0), /* CML-S */
514 		.driver_data = (unsigned long)&cml_desc},
515 #endif
516 #if IS_ENABLED(CONFIG_SND_SOC_SOF_TIGERLAKE)
517 	{ PCI_DEVICE(0x8086, 0xa0c8), /* TGL-LP */
518 		.driver_data = (unsigned long)&tgl_desc},
519 	{ PCI_DEVICE(0x8086, 0x43c8), /* TGL-H */
520 		.driver_data = (unsigned long)&tglh_desc},
521 
522 #endif
523 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ELKHARTLAKE)
524 	{ PCI_DEVICE(0x8086, 0x4b55),
525 		.driver_data = (unsigned long)&ehl_desc},
526 	{ PCI_DEVICE(0x8086, 0x4b58),
527 		.driver_data = (unsigned long)&ehl_desc},
528 #endif
529 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ALDERLAKE)
530 	{ PCI_DEVICE(0x8086, 0x7ad0),
531 		.driver_data = (unsigned long)&adls_desc},
532 	{ PCI_DEVICE(0x8086, 0x51c8),
533 		.driver_data = (unsigned long)&tgl_desc},
534 #endif
535 	{ 0, }
536 };
537 MODULE_DEVICE_TABLE(pci, sof_pci_ids);
538 
539 /* pci_driver definition */
540 static struct pci_driver snd_sof_pci_driver = {
541 	.name = "sof-audio-pci",
542 	.id_table = sof_pci_ids,
543 	.probe = sof_pci_probe,
544 	.remove = sof_pci_remove,
545 	.shutdown = sof_pci_shutdown,
546 	.driver = {
547 		.pm = &sof_pci_pm,
548 	},
549 };
550 module_pci_driver(snd_sof_pci_driver);
551 
552 MODULE_LICENSE("Dual BSD/GPL");
553 MODULE_IMPORT_NS(SND_SOC_SOF_MERRIFIELD);
554 MODULE_IMPORT_NS(SND_SOC_SOF_INTEL_HDA_COMMON);
555