xref: /linux/sound/soc/sof/amd/acp.c (revision d6296cb65320be16dbf20f2fd584ddc25f3437cd) 
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) 2021 Advanced Micro Devices, Inc. All rights reserved.
7 //
8 // Authors: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
9 //	    Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
10 
11 /*
12  * Hardware interface for generic AMD ACP processor
13  */
14 
15 #include <linux/io.h>
16 #include <linux/module.h>
17 #include <linux/pci.h>
18 
19 #include "../ops.h"
20 #include "acp.h"
21 #include "acp-dsp-offset.h"
22 
23 static int smn_write(struct pci_dev *dev, u32 smn_addr, u32 data)
24 {
25 	pci_write_config_dword(dev, 0x60, smn_addr);
26 	pci_write_config_dword(dev, 0x64, data);
27 
28 	return 0;
29 }
30 
31 static int smn_read(struct pci_dev *dev, u32 smn_addr, u32 *data)
32 {
33 	pci_write_config_dword(dev, 0x60, smn_addr);
34 	pci_read_config_dword(dev, 0x64, data);
35 
36 	return 0;
37 }
38 
39 static void init_dma_descriptor(struct acp_dev_data *adata)
40 {
41 	struct snd_sof_dev *sdev = adata->dev;
42 	const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata);
43 	unsigned int addr;
44 
45 	addr = desc->sram_pte_offset + sdev->debug_box.offset +
46 	       offsetof(struct scratch_reg_conf, dma_desc);
47 
48 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_DMA_DESC_BASE_ADDR, addr);
49 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_DMA_DESC_MAX_NUM_DSCR, ACP_MAX_DESC_CNT);
50 }
51 
52 static void configure_dma_descriptor(struct acp_dev_data *adata, unsigned short idx,
53 				     struct dma_descriptor *dscr_info)
54 {
55 	struct snd_sof_dev *sdev = adata->dev;
56 	unsigned int offset;
57 
58 	offset = ACP_SCRATCH_REG_0 + sdev->debug_box.offset +
59 		offsetof(struct scratch_reg_conf, dma_desc) +
60 		idx * sizeof(struct dma_descriptor);
61 
62 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, offset, dscr_info->src_addr);
63 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, offset + 0x4, dscr_info->dest_addr);
64 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, offset + 0x8, dscr_info->tx_cnt.u32_all);
65 }
66 
67 static int config_dma_channel(struct acp_dev_data *adata, unsigned int ch,
68 			      unsigned int idx, unsigned int dscr_count)
69 {
70 	struct snd_sof_dev *sdev = adata->dev;
71 	unsigned int val, status;
72 	int ret;
73 
74 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_DMA_CNTL_0 + ch * sizeof(u32),
75 			  ACP_DMA_CH_RST | ACP_DMA_CH_GRACEFUL_RST_EN);
76 
77 	ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_DMA_CH_RST_STS, val,
78 					    val & (1 << ch), ACP_REG_POLL_INTERVAL,
79 					    ACP_REG_POLL_TIMEOUT_US);
80 	if (ret < 0) {
81 		status = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP_ERROR_STATUS);
82 		val = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP_DMA_ERR_STS_0 + ch * sizeof(u32));
83 
84 		dev_err(sdev->dev, "ACP_DMA_ERR_STS :0x%x ACP_ERROR_STATUS :0x%x\n", val, status);
85 		return ret;
86 	}
87 
88 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, (ACP_DMA_CNTL_0 + ch * sizeof(u32)), 0);
89 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_DMA_DSCR_CNT_0 + ch * sizeof(u32), dscr_count);
90 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_DMA_DSCR_STRT_IDX_0 + ch * sizeof(u32), idx);
91 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_DMA_PRIO_0 + ch * sizeof(u32), 0);
92 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_DMA_CNTL_0 + ch * sizeof(u32), ACP_DMA_CH_RUN);
93 
94 	return ret;
95 }
96 
97 static int acpbus_dma_start(struct acp_dev_data *adata, unsigned int ch,
98 			    unsigned int dscr_count, struct dma_descriptor *dscr_info)
99 {
100 	struct snd_sof_dev *sdev = adata->dev;
101 	int ret;
102 	u16 dscr;
103 
104 	if (!dscr_info || !dscr_count)
105 		return -EINVAL;
106 
107 	for (dscr = 0; dscr < dscr_count; dscr++)
108 		configure_dma_descriptor(adata, dscr, dscr_info++);
109 
110 	ret = config_dma_channel(adata, ch, 0, dscr_count);
111 	if (ret < 0)
112 		dev_err(sdev->dev, "config dma ch failed:%d\n", ret);
113 
114 	return ret;
115 }
116 
117 int configure_and_run_dma(struct acp_dev_data *adata, unsigned int src_addr,
118 			  unsigned int dest_addr, int dsp_data_size)
119 {
120 	struct snd_sof_dev *sdev = adata->dev;
121 	unsigned int desc_count, index;
122 	int ret;
123 
124 	for (desc_count = 0; desc_count < ACP_MAX_DESC && dsp_data_size >= 0;
125 	     desc_count++, dsp_data_size -= ACP_PAGE_SIZE) {
126 		adata->dscr_info[desc_count].src_addr = src_addr + desc_count * ACP_PAGE_SIZE;
127 		adata->dscr_info[desc_count].dest_addr = dest_addr + desc_count * ACP_PAGE_SIZE;
128 		adata->dscr_info[desc_count].tx_cnt.bits.count = ACP_PAGE_SIZE;
129 		if (dsp_data_size < ACP_PAGE_SIZE)
130 			adata->dscr_info[desc_count].tx_cnt.bits.count = dsp_data_size;
131 	}
132 
133 	ret = acpbus_dma_start(adata, 0, desc_count, adata->dscr_info);
134 	if (ret)
135 		dev_err(sdev->dev, "acpbus_dma_start failed\n");
136 
137 	/* Clear descriptor array */
138 	for (index = 0; index < desc_count; index++)
139 		memset(&adata->dscr_info[index], 0x00, sizeof(struct dma_descriptor));
140 
141 	return ret;
142 }
143 
144 /*
145  * psp_mbox_ready- function to poll ready bit of psp mbox
146  * @adata: acp device data
147  * @ack: bool variable to check ready bit status or psp ack
148  */
149 
150 static int psp_mbox_ready(struct acp_dev_data *adata, bool ack)
151 {
152 	struct snd_sof_dev *sdev = adata->dev;
153 	int timeout;
154 	u32 data;
155 
156 	for (timeout = ACP_PSP_TIMEOUT_COUNTER; timeout > 0; timeout--) {
157 		msleep(20);
158 		smn_read(adata->smn_dev, MP0_C2PMSG_114_REG, &data);
159 		if (data & MBOX_READY_MASK)
160 			return 0;
161 	}
162 
163 	dev_err(sdev->dev, "PSP error status %x\n", data & MBOX_STATUS_MASK);
164 
165 	if (ack)
166 		return -ETIMEDOUT;
167 
168 	return -EBUSY;
169 }
170 
171 /*
172  * psp_send_cmd - function to send psp command over mbox
173  * @adata: acp device data
174  * @cmd: non zero integer value for command type
175  */
176 
177 static int psp_send_cmd(struct acp_dev_data *adata, int cmd)
178 {
179 	struct snd_sof_dev *sdev = adata->dev;
180 	int ret, timeout;
181 	u32 data;
182 
183 	if (!cmd)
184 		return -EINVAL;
185 
186 	/* Get a non-zero Doorbell value from PSP */
187 	for (timeout = ACP_PSP_TIMEOUT_COUNTER; timeout > 0; timeout--) {
188 		msleep(MBOX_DELAY);
189 		smn_read(adata->smn_dev, MP0_C2PMSG_73_REG, &data);
190 		if (data)
191 			break;
192 	}
193 
194 	if (!timeout) {
195 		dev_err(sdev->dev, "Failed to get Doorbell from MBOX %x\n", MP0_C2PMSG_73_REG);
196 		return -EINVAL;
197 	}
198 
199 	/* Check if PSP is ready for new command */
200 	ret = psp_mbox_ready(adata, 0);
201 	if (ret)
202 		return ret;
203 
204 	smn_write(adata->smn_dev, MP0_C2PMSG_114_REG, cmd);
205 
206 	/* Ring the Doorbell for PSP */
207 	smn_write(adata->smn_dev, MP0_C2PMSG_73_REG, data);
208 
209 	/* Check MBOX ready as PSP ack */
210 	ret = psp_mbox_ready(adata, 1);
211 
212 	return ret;
213 }
214 
215 int configure_and_run_sha_dma(struct acp_dev_data *adata, void *image_addr,
216 			      unsigned int start_addr, unsigned int dest_addr,
217 			      unsigned int image_length)
218 {
219 	struct snd_sof_dev *sdev = adata->dev;
220 	unsigned int tx_count, fw_qualifier, val;
221 	int ret;
222 
223 	if (!image_addr) {
224 		dev_err(sdev->dev, "SHA DMA image address is NULL\n");
225 		return -EINVAL;
226 	}
227 
228 	val = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP_SHA_DMA_CMD);
229 	if (val & ACP_SHA_RUN) {
230 		snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SHA_DMA_CMD, ACP_SHA_RESET);
231 		ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_SHA_DMA_CMD_STS,
232 						    val, val & ACP_SHA_RESET,
233 						    ACP_REG_POLL_INTERVAL,
234 						    ACP_REG_POLL_TIMEOUT_US);
235 		if (ret < 0) {
236 			dev_err(sdev->dev, "SHA DMA Failed to Reset\n");
237 			return ret;
238 		}
239 	}
240 
241 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SHA_DMA_STRT_ADDR, start_addr);
242 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SHA_DMA_DESTINATION_ADDR, dest_addr);
243 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SHA_MSG_LENGTH, image_length);
244 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SHA_DMA_CMD, ACP_SHA_RUN);
245 
246 	ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_SHA_TRANSFER_BYTE_CNT,
247 					    tx_count, tx_count == image_length,
248 					    ACP_REG_POLL_INTERVAL, ACP_DMA_COMPLETE_TIMEOUT_US);
249 	if (ret < 0) {
250 		dev_err(sdev->dev, "SHA DMA Failed to Transfer Length %x\n", tx_count);
251 		return ret;
252 	}
253 
254 	ret = psp_send_cmd(adata, MBOX_ACP_SHA_DMA_COMMAND);
255 	if (ret)
256 		return ret;
257 
258 	ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_SHA_DSP_FW_QUALIFIER,
259 					    fw_qualifier, fw_qualifier & DSP_FW_RUN_ENABLE,
260 					    ACP_REG_POLL_INTERVAL, ACP_DMA_COMPLETE_TIMEOUT_US);
261 	if (ret < 0) {
262 		dev_err(sdev->dev, "PSP validation failed\n");
263 		return ret;
264 	}
265 
266 	return 0;
267 }
268 
269 int acp_dma_status(struct acp_dev_data *adata, unsigned char ch)
270 {
271 	struct snd_sof_dev *sdev = adata->dev;
272 	unsigned int val;
273 	int ret = 0;
274 
275 	val = snd_sof_dsp_read(sdev, ACP_DSP_BAR, ACP_DMA_CNTL_0 + ch * sizeof(u32));
276 	if (val & ACP_DMA_CH_RUN) {
277 		ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_DMA_CH_STS, val, !val,
278 						    ACP_REG_POLL_INTERVAL,
279 						    ACP_DMA_COMPLETE_TIMEOUT_US);
280 		if (ret < 0)
281 			dev_err(sdev->dev, "DMA_CHANNEL %d status timeout\n", ch);
282 	}
283 
284 	return ret;
285 }
286 
287 void memcpy_from_scratch(struct snd_sof_dev *sdev, u32 offset, unsigned int *dst, size_t bytes)
288 {
289 	unsigned int reg_offset = offset + ACP_SCRATCH_REG_0;
290 	int i, j;
291 
292 	for (i = 0, j = 0; i < bytes; i = i + 4, j++)
293 		dst[j] = snd_sof_dsp_read(sdev, ACP_DSP_BAR, reg_offset + i);
294 }
295 
296 void memcpy_to_scratch(struct snd_sof_dev *sdev, u32 offset, unsigned int *src, size_t bytes)
297 {
298 	unsigned int reg_offset = offset + ACP_SCRATCH_REG_0;
299 	int i, j;
300 
301 	for (i = 0, j = 0; i < bytes; i = i + 4, j++)
302 		snd_sof_dsp_write(sdev, ACP_DSP_BAR, reg_offset + i, src[j]);
303 }
304 
305 static int acp_memory_init(struct snd_sof_dev *sdev)
306 {
307 	struct acp_dev_data *adata = sdev->pdata->hw_pdata;
308 	const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata);
309 
310 	snd_sof_dsp_update_bits(sdev, ACP_DSP_BAR, desc->dsp_intr_base + DSP_SW_INTR_CNTL_OFFSET,
311 				ACP_DSP_INTR_EN_MASK, ACP_DSP_INTR_EN_MASK);
312 	init_dma_descriptor(adata);
313 
314 	return 0;
315 }
316 
317 static irqreturn_t acp_irq_thread(int irq, void *context)
318 {
319 	struct snd_sof_dev *sdev = context;
320 	const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata);
321 	unsigned int val, count = ACP_HW_SEM_RETRY_COUNT;
322 
323 	val = snd_sof_dsp_read(sdev, ACP_DSP_BAR, desc->ext_intr_stat);
324 	if (val & ACP_SHA_STAT) {
325 		/* Clear SHA interrupt raised by PSP */
326 		snd_sof_dsp_write(sdev, ACP_DSP_BAR, desc->ext_intr_stat, val);
327 		return IRQ_HANDLED;
328 	}
329 
330 	while (snd_sof_dsp_read(sdev, ACP_DSP_BAR, desc->hw_semaphore_offset)) {
331 		/* Wait until acquired HW Semaphore lock or timeout */
332 		count--;
333 		if (!count) {
334 			dev_err(sdev->dev, "%s: Failed to acquire HW lock\n", __func__);
335 			return IRQ_NONE;
336 		}
337 	}
338 
339 	sof_ops(sdev)->irq_thread(irq, sdev);
340 	/* Unlock or Release HW Semaphore */
341 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, desc->hw_semaphore_offset, 0x0);
342 
343 	return IRQ_HANDLED;
344 };
345 
346 static irqreturn_t acp_irq_handler(int irq, void *dev_id)
347 {
348 	struct snd_sof_dev *sdev = dev_id;
349 	const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata);
350 	unsigned int base = desc->dsp_intr_base;
351 	unsigned int val;
352 
353 	val = snd_sof_dsp_read(sdev, ACP_DSP_BAR, base + DSP_SW_INTR_STAT_OFFSET);
354 	if (val) {
355 		val |= ACP_DSP_TO_HOST_IRQ;
356 		snd_sof_dsp_write(sdev, ACP_DSP_BAR, base + DSP_SW_INTR_STAT_OFFSET, val);
357 		return IRQ_WAKE_THREAD;
358 	}
359 
360 	return IRQ_NONE;
361 }
362 
363 static int acp_power_on(struct snd_sof_dev *sdev)
364 {
365 	const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata);
366 	unsigned int base = desc->pgfsm_base;
367 	unsigned int val;
368 	int ret;
369 
370 	val = snd_sof_dsp_read(sdev, ACP_DSP_BAR, base + PGFSM_STATUS_OFFSET);
371 
372 	if (val == ACP_POWERED_ON)
373 		return 0;
374 
375 	if (val & ACP_PGFSM_STATUS_MASK)
376 		snd_sof_dsp_write(sdev, ACP_DSP_BAR, base + PGFSM_CONTROL_OFFSET,
377 				  ACP_PGFSM_CNTL_POWER_ON_MASK);
378 
379 	ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, base + PGFSM_STATUS_OFFSET, val,
380 					    !val, ACP_REG_POLL_INTERVAL, ACP_REG_POLL_TIMEOUT_US);
381 	if (ret < 0)
382 		dev_err(sdev->dev, "timeout in ACP_PGFSM_STATUS read\n");
383 
384 	return ret;
385 }
386 
387 static int acp_reset(struct snd_sof_dev *sdev)
388 {
389 	const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata);
390 	unsigned int val;
391 	int ret;
392 
393 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SOFT_RESET, ACP_ASSERT_RESET);
394 
395 	ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_SOFT_RESET, val,
396 					    val & ACP_SOFT_RESET_DONE_MASK,
397 					    ACP_REG_POLL_INTERVAL, ACP_REG_POLL_TIMEOUT_US);
398 	if (ret < 0) {
399 		dev_err(sdev->dev, "timeout asserting reset\n");
400 		return ret;
401 	}
402 
403 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_SOFT_RESET, ACP_RELEASE_RESET);
404 
405 	ret = snd_sof_dsp_read_poll_timeout(sdev, ACP_DSP_BAR, ACP_SOFT_RESET, val, !val,
406 					    ACP_REG_POLL_INTERVAL, ACP_REG_POLL_TIMEOUT_US);
407 	if (ret < 0)
408 		dev_err(sdev->dev, "timeout in releasing reset\n");
409 
410 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, desc->acp_clkmux_sel, ACP_CLOCK_ACLK);
411 	return ret;
412 }
413 
414 static int acp_init(struct snd_sof_dev *sdev)
415 {
416 	int ret;
417 
418 	/* power on */
419 	ret = acp_power_on(sdev);
420 	if (ret) {
421 		dev_err(sdev->dev, "ACP power on failed\n");
422 		return ret;
423 	}
424 
425 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_CONTROL, 0x01);
426 	/* Reset */
427 	return acp_reset(sdev);
428 }
429 
430 int amd_sof_acp_suspend(struct snd_sof_dev *sdev, u32 target_state)
431 {
432 	int ret;
433 
434 	ret = acp_reset(sdev);
435 	if (ret) {
436 		dev_err(sdev->dev, "ACP Reset failed\n");
437 		return ret;
438 	}
439 
440 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, ACP_CONTROL, 0x00);
441 
442 	return 0;
443 }
444 EXPORT_SYMBOL_NS(amd_sof_acp_suspend, SND_SOC_SOF_AMD_COMMON);
445 
446 int amd_sof_acp_resume(struct snd_sof_dev *sdev)
447 {
448 	const struct sof_amd_acp_desc *desc = get_chip_info(sdev->pdata);
449 	int ret;
450 
451 	ret = acp_init(sdev);
452 	if (ret) {
453 		dev_err(sdev->dev, "ACP Init failed\n");
454 		return ret;
455 	}
456 
457 	snd_sof_dsp_write(sdev, ACP_DSP_BAR, desc->acp_clkmux_sel, ACP_CLOCK_ACLK);
458 
459 	ret = acp_memory_init(sdev);
460 
461 	return ret;
462 }
463 EXPORT_SYMBOL_NS(amd_sof_acp_resume, SND_SOC_SOF_AMD_COMMON);
464 
465 int amd_sof_acp_probe(struct snd_sof_dev *sdev)
466 {
467 	struct pci_dev *pci = to_pci_dev(sdev->dev);
468 	struct acp_dev_data *adata;
469 	const struct sof_amd_acp_desc *chip;
470 	unsigned int addr;
471 	int ret;
472 
473 	adata = devm_kzalloc(sdev->dev, sizeof(struct acp_dev_data),
474 			     GFP_KERNEL);
475 	if (!adata)
476 		return -ENOMEM;
477 
478 	adata->dev = sdev;
479 	addr = pci_resource_start(pci, ACP_DSP_BAR);
480 	sdev->bar[ACP_DSP_BAR] = devm_ioremap(sdev->dev, addr, pci_resource_len(pci, ACP_DSP_BAR));
481 	if (!sdev->bar[ACP_DSP_BAR]) {
482 		dev_err(sdev->dev, "ioremap error\n");
483 		return -ENXIO;
484 	}
485 
486 	pci_set_master(pci);
487 
488 	sdev->pdata->hw_pdata = adata;
489 
490 	chip = get_chip_info(sdev->pdata);
491 	if (!chip) {
492 		dev_err(sdev->dev, "no such device supported, chip id:%x\n", pci->device);
493 		return -EIO;
494 	}
495 
496 	adata->smn_dev = pci_get_device(PCI_VENDOR_ID_AMD, chip->host_bridge_id, NULL);
497 	if (!adata->smn_dev) {
498 		dev_err(sdev->dev, "Failed to get host bridge device\n");
499 		return -ENODEV;
500 	}
501 
502 	sdev->ipc_irq = pci->irq;
503 	ret = request_threaded_irq(sdev->ipc_irq, acp_irq_handler, acp_irq_thread,
504 				   IRQF_SHARED, "AudioDSP", sdev);
505 	if (ret < 0) {
506 		dev_err(sdev->dev, "failed to register IRQ %d\n",
507 			sdev->ipc_irq);
508 		pci_dev_put(adata->smn_dev);
509 		return ret;
510 	}
511 
512 	ret = acp_init(sdev);
513 	if (ret < 0) {
514 		free_irq(sdev->ipc_irq, sdev);
515 		pci_dev_put(adata->smn_dev);
516 		return ret;
517 	}
518 
519 	sdev->dsp_box.offset = 0;
520 	sdev->dsp_box.size = BOX_SIZE_512;
521 
522 	sdev->host_box.offset = sdev->dsp_box.offset + sdev->dsp_box.size;
523 	sdev->host_box.size = BOX_SIZE_512;
524 
525 	sdev->debug_box.offset = sdev->host_box.offset + sdev->host_box.size;
526 	sdev->debug_box.size = BOX_SIZE_1024;
527 
528 	acp_memory_init(sdev);
529 
530 	acp_dsp_stream_init(sdev);
531 
532 	return 0;
533 }
534 EXPORT_SYMBOL_NS(amd_sof_acp_probe, SND_SOC_SOF_AMD_COMMON);
535 
536 int amd_sof_acp_remove(struct snd_sof_dev *sdev)
537 {
538 	struct acp_dev_data *adata = sdev->pdata->hw_pdata;
539 
540 	if (adata->smn_dev)
541 		pci_dev_put(adata->smn_dev);
542 
543 	if (sdev->ipc_irq)
544 		free_irq(sdev->ipc_irq, sdev);
545 
546 	return acp_reset(sdev);
547 }
548 EXPORT_SYMBOL_NS(amd_sof_acp_remove, SND_SOC_SOF_AMD_COMMON);
549 
550 MODULE_DESCRIPTION("AMD ACP sof driver");
551 MODULE_LICENSE("Dual BSD/GPL");
552