pci-ps.c

  1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * AMD common ACP PCI driver for ACP6.3, ACP7.0 & ACP7.1 platforms.
  4 *
  5 * Copyright 2022, 2025 Advanced Micro Devices, Inc.
  6 */
  7
  8#include <linux/pci.h>
  9#include <linux/bitops.h>
 10#include <linux/module.h>
 11#include <linux/io.h>
 12#include <linux/delay.h>
 13#include <linux/platform_device.h>
 14#include <linux/acpi.h>
 15#include <linux/interrupt.h>
 16#include <sound/pcm_params.h>
 17#include <linux/pm_runtime.h>
 18#include <linux/iopoll.h>
 19#include <linux/soundwire/sdw_amd.h>
 20#include "../mach-config.h"
 21
 22#include "acp63.h"
 23
 24static void handle_acp70_sdw_wake_event(struct acp63_dev_data *adata)
 25{
 26	struct amd_sdw_manager *amd_manager;
 27
 28	if (adata->acp70_sdw0_wake_event) {
 29		amd_manager = dev_get_drvdata(&adata->sdw->pdev[0]->dev);
 30		if (amd_manager)
 31			pm_request_resume(amd_manager->dev);
 32		adata->acp70_sdw0_wake_event = 0;
 33	}
 34
 35	if (adata->acp70_sdw1_wake_event) {
 36		amd_manager = dev_get_drvdata(&adata->sdw->pdev[1]->dev);
 37		if (amd_manager)
 38			pm_request_resume(amd_manager->dev);
 39		adata->acp70_sdw1_wake_event = 0;
 40	}
 41}
 42
 43static short int check_and_handle_acp70_sdw_wake_irq(struct acp63_dev_data *adata)
 44{
 45	u32 ext_intr_stat1;
 46	int irq_flag = 0;
 47	bool sdw_wake_irq = false;
 48
 49	ext_intr_stat1 = readl(adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
 50	if (ext_intr_stat1 & ACP70_SDW0_HOST_WAKE_STAT) {
 51		writel(ACP70_SDW0_HOST_WAKE_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
 52		adata->acp70_sdw0_wake_event = true;
 53		sdw_wake_irq = true;
 54	}
 55
 56	if (ext_intr_stat1 & ACP70_SDW1_HOST_WAKE_STAT) {
 57		writel(ACP70_SDW1_HOST_WAKE_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
 58		adata->acp70_sdw1_wake_event = true;
 59		sdw_wake_irq = true;
 60	}
 61
 62	if (ext_intr_stat1 & ACP70_SDW0_PME_STAT) {
 63		writel(0, adata->acp63_base + ACP_SW0_WAKE_EN);
 64		writel(ACP70_SDW0_PME_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
 65		adata->acp70_sdw0_wake_event = true;
 66		sdw_wake_irq = true;
 67	}
 68
 69	if (ext_intr_stat1 & ACP70_SDW1_PME_STAT) {
 70		writel(0, adata->acp63_base + ACP_SW1_WAKE_EN);
 71		writel(ACP70_SDW1_PME_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
 72		adata->acp70_sdw1_wake_event = true;
 73		sdw_wake_irq = true;
 74	}
 75
 76	if (sdw_wake_irq) {
 77		handle_acp70_sdw_wake_event(adata);
 78		irq_flag = 1;
 79	}
 80	return irq_flag;
 81}
 82
 83static short int check_and_handle_sdw_dma_irq(struct acp63_dev_data *adata, u32 ext_intr_stat,
 84					      u32 ext_intr_stat1)
 85{
 86	u32 stream_id = 0;
 87	u16 sdw_dma_irq_flag = 0;
 88	u16 index;
 89
 90	if (ext_intr_stat & ACP63_SDW_DMA_IRQ_MASK) {
 91		for (index = ACP_AUDIO2_RX_THRESHOLD; index <= ACP_AUDIO0_TX_THRESHOLD; index++) {
 92			if (ext_intr_stat & BIT(index)) {
 93				writel(BIT(index), adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
 94				switch (index) {
 95				case ACP_AUDIO0_TX_THRESHOLD:
 96					stream_id = ACP63_SDW0_AUDIO0_TX;
 97					break;
 98				case ACP_AUDIO1_TX_THRESHOLD:
 99					stream_id = ACP63_SDW0_AUDIO1_TX;
100					break;
101				case ACP_AUDIO2_TX_THRESHOLD:
102					stream_id = ACP63_SDW0_AUDIO2_TX;
103					break;
104				case ACP_AUDIO0_RX_THRESHOLD:
105					stream_id = ACP63_SDW0_AUDIO0_RX;
106					break;
107				case ACP_AUDIO1_RX_THRESHOLD:
108					stream_id = ACP63_SDW0_AUDIO1_RX;
109					break;
110				case ACP_AUDIO2_RX_THRESHOLD:
111					stream_id = ACP63_SDW0_AUDIO2_RX;
112					break;
113				}
114				switch (adata->acp_rev) {
115				case ACP63_PCI_REV:
116					adata->acp63_sdw0_dma_intr_stat[stream_id] = 1;
117					break;
118				case ACP70_PCI_REV:
119				case ACP71_PCI_REV:
120				case ACP72_PCI_REV:
121					adata->acp70_sdw0_dma_intr_stat[stream_id] = 1;
122					break;
123				}
124				sdw_dma_irq_flag = 1;
125			}
126		}
127	}
128	switch (adata->acp_rev) {
129	case ACP63_PCI_REV:
130		if (ext_intr_stat1 & ACP63_P1_AUDIO1_RX_THRESHOLD) {
131			writel(ACP63_P1_AUDIO1_RX_THRESHOLD,
132			       adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
133			adata->acp63_sdw1_dma_intr_stat[ACP63_SDW1_AUDIO1_RX] = 1;
134			sdw_dma_irq_flag = 1;
135		}
136		if (ext_intr_stat1 & ACP63_P1_AUDIO1_TX_THRESHOLD) {
137			writel(ACP63_P1_AUDIO1_TX_THRESHOLD,
138			       adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
139			adata->acp63_sdw1_dma_intr_stat[ACP63_SDW1_AUDIO1_TX] = 1;
140			sdw_dma_irq_flag = 1;
141		}
142		break;
143	case ACP70_PCI_REV:
144	case ACP71_PCI_REV:
145	case ACP72_PCI_REV:
146		if (ext_intr_stat1 & ACP70_P1_SDW_DMA_IRQ_MASK) {
147			for (index = ACP70_P1_AUDIO2_RX_THRESHOLD;
148			     index <= ACP70_P1_AUDIO0_TX_THRESHOLD; index++) {
149				if (ext_intr_stat1 & BIT(index)) {
150					writel(BIT(index),
151					       adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
152					switch (index) {
153					case ACP70_P1_AUDIO0_TX_THRESHOLD:
154						stream_id = ACP70_SDW_AUDIO0_TX;
155						break;
156					case ACP70_P1_AUDIO1_TX_THRESHOLD:
157						stream_id = ACP70_SDW_AUDIO1_TX;
158						break;
159					case ACP70_P1_AUDIO2_TX_THRESHOLD:
160						stream_id = ACP70_SDW_AUDIO2_TX;
161						break;
162					case ACP70_P1_AUDIO0_RX_THRESHOLD:
163						stream_id = ACP70_SDW_AUDIO0_RX;
164						break;
165					case ACP70_P1_AUDIO1_RX_THRESHOLD:
166						 stream_id = ACP70_SDW_AUDIO1_RX;
167						break;
168					case ACP70_P1_AUDIO2_RX_THRESHOLD:
169						stream_id = ACP70_SDW_AUDIO2_RX;
170						break;
171					}
172
173					adata->acp70_sdw1_dma_intr_stat[stream_id] = 1;
174					sdw_dma_irq_flag = 1;
175				}
176			}
177		}
178		break;
179	}
180	return sdw_dma_irq_flag;
181}
182
183static irqreturn_t acp63_irq_thread(int irq, void *context)
184{
185	struct acp63_dev_data *adata = context;
186
187	acp_hw_sdw_dma_irq_thread(adata);
188	return IRQ_HANDLED;
189}
190
191static irqreturn_t acp63_irq_handler(int irq, void *dev_id)
192{
193	struct acp63_dev_data *adata;
194	struct pdm_dev_data *ps_pdm_data;
195	struct amd_sdw_manager *amd_manager;
196	u32 ext_intr_stat, ext_intr_stat1;
197	u16 irq_flag = 0;
198	u16 wake_irq_flag = 0;
199	u16 sdw_dma_irq_flag = 0;
200
201	adata = dev_id;
202	if (!adata)
203		return IRQ_NONE;
204	/* ACP interrupts will be cleared by reading particular bit and writing
205	 * same value to the status register. writing zero's doesn't have any
206	 * effect.
207	 * Bit by bit checking of IRQ field is implemented.
208	 */
209	ext_intr_stat = readl(adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
210	if (ext_intr_stat & ACP_SDW0_STAT) {
211		writel(ACP_SDW0_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
212		amd_manager = dev_get_drvdata(&adata->sdw->pdev[0]->dev);
213		if (amd_manager)
214			schedule_work(&amd_manager->amd_sdw_irq_thread);
215		irq_flag = 1;
216	}
217
218	ext_intr_stat1 = readl(adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
219	if (ext_intr_stat1 & ACP_SDW1_STAT) {
220		writel(ACP_SDW1_STAT, adata->acp63_base + ACP_EXTERNAL_INTR_STAT1);
221		amd_manager = dev_get_drvdata(&adata->sdw->pdev[1]->dev);
222		if (amd_manager)
223			schedule_work(&amd_manager->amd_sdw_irq_thread);
224		irq_flag = 1;
225	}
226
227	if (ext_intr_stat & ACP_ERROR_IRQ) {
228		writel(ACP_ERROR_IRQ, adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
229		/* TODO: Report SoundWire Manager instance errors */
230		writel(0, adata->acp63_base + ACP_SW0_I2S_ERROR_REASON);
231		writel(0, adata->acp63_base + ACP_SW1_I2S_ERROR_REASON);
232		writel(0, adata->acp63_base + ACP_ERROR_STATUS);
233		irq_flag = 1;
234	}
235
236	if (adata->acp_rev >= ACP70_PCI_REV)
237		wake_irq_flag = check_and_handle_acp70_sdw_wake_irq(adata);
238
239	if (ext_intr_stat & BIT(PDM_DMA_STAT)) {
240		ps_pdm_data = dev_get_drvdata(&adata->pdm_dev->dev);
241		writel(BIT(PDM_DMA_STAT), adata->acp63_base + ACP_EXTERNAL_INTR_STAT);
242		if (ps_pdm_data->capture_stream)
243			snd_pcm_period_elapsed(ps_pdm_data->capture_stream);
244		irq_flag = 1;
245	}
246
247	sdw_dma_irq_flag = check_and_handle_sdw_dma_irq(adata, ext_intr_stat, ext_intr_stat1);
248	if (sdw_dma_irq_flag)
249		return IRQ_WAKE_THREAD;
250
251	if (irq_flag | wake_irq_flag)
252		return IRQ_HANDLED;
253	else
254		return IRQ_NONE;
255}
256
257#if IS_ENABLED(CONFIG_SND_SOC_AMD_SOUNDWIRE)
258static int acp_scan_sdw_devices(struct device *dev, u64 addr)
259{
260	struct acpi_device *sdw_dev;
261	struct acp63_dev_data *acp_data;
262
263	acp_data = dev_get_drvdata(dev);
264	if (!addr)
265		return -ENODEV;
266
267	sdw_dev = acpi_find_child_device(ACPI_COMPANION(dev), addr, 0);
268	if (!sdw_dev)
269		return -ENODEV;
270
271	acp_data->info.handle = sdw_dev->handle;
272	acp_data->info.count = AMD_SDW_MAX_MANAGERS;
273	return amd_sdw_scan_controller(&acp_data->info);
274}
275
276static int amd_sdw_probe(struct device *dev)
277{
278	struct acp63_dev_data *acp_data;
279	struct sdw_amd_res sdw_res;
280	int ret;
281
282	acp_data = dev_get_drvdata(dev);
283	memset(&sdw_res, 0, sizeof(sdw_res));
284	sdw_res.addr = acp_data->addr;
285	sdw_res.reg_range = acp_data->reg_range;
286	sdw_res.handle = acp_data->info.handle;
287	sdw_res.parent = dev;
288	sdw_res.dev = dev;
289	sdw_res.acp_lock = &acp_data->acp_lock;
290	sdw_res.count = acp_data->info.count;
291	sdw_res.mmio_base = acp_data->acp63_base;
292	sdw_res.acp_rev = acp_data->acp_rev;
293	sdw_res.link_mask = acp_data->info.link_mask;
294	ret = sdw_amd_probe(&sdw_res, &acp_data->sdw);
295	if (ret)
296		dev_err(dev, "error: SoundWire probe failed\n");
297	return ret;
298}
299
300static int amd_sdw_exit(struct acp63_dev_data *acp_data)
301{
302	if (acp_data->sdw)
303		sdw_amd_exit(acp_data->sdw);
304	acp_data->sdw = NULL;
305
306	return 0;
307}
308
309static struct snd_soc_acpi_mach *acp63_sdw_machine_select(struct device *dev)
310{
311	struct snd_soc_acpi_mach *mach;
312	const struct snd_soc_acpi_link_adr *link;
313	struct acp63_dev_data *acp_data = dev_get_drvdata(dev);
314	int ret, i;
315
316	if (acp_data->info.count) {
317		ret = sdw_amd_get_slave_info(acp_data->sdw);
318		if (ret) {
319			dev_dbg(dev, "failed to read slave information\n");
320			return NULL;
321		}
322		for (mach = acp_data->machines; mach; mach++) {
323			if (!mach->links)
324				break;
325			link = mach->links;
326			for (i = 0; i < acp_data->info.count && link->num_adr; link++, i++) {
327				if (!snd_soc_acpi_sdw_link_slaves_found(dev, link,
328									acp_data->sdw->peripherals))
329					break;
330			}
331			if (i == acp_data->info.count || !link->num_adr)
332				break;
333		}
334		if (mach && mach->link_mask) {
335			mach->mach_params.links = mach->links;
336			mach->mach_params.link_mask = mach->link_mask;
337			mach->mach_params.subsystem_rev = acp_data->acp_rev;
338			mach->mach_params.subsystem_vendor = acp_data->subsystem_vendor;
339			mach->mach_params.subsystem_device = acp_data->subsystem_device;
340			mach->mach_params.subsystem_id_set = true;
341
342			dev_dbg(dev, "SSID %x%x\n", mach->mach_params.subsystem_vendor,
343				mach->mach_params.subsystem_device);
344			return mach;
345		}
346	}
347	dev_dbg(dev, "No SoundWire machine driver found\n");
348	return NULL;
349}
350#else
351static int acp_scan_sdw_devices(struct device *dev, u64 addr)
352{
353	return 0;
354}
355
356static int amd_sdw_probe(struct device *dev)
357{
358	return 0;
359}
360
361static int amd_sdw_exit(struct acp63_dev_data *acp_data)
362{
363	return 0;
364}
365
366static struct snd_soc_acpi_mach *acp63_sdw_machine_select(struct device *dev)
367{
368	return NULL;
369}
370#endif
371
372static int acp63_machine_register(struct device *dev)
373{
374	struct snd_soc_acpi_mach *mach;
375	struct acp63_dev_data *adata = dev_get_drvdata(dev);
376	int size;
377
378	if (adata->is_sdw_dev && adata->is_sdw_config) {
379		size = sizeof(*adata->machines);
380		mach = acp63_sdw_machine_select(dev);
381		if (mach) {
382			adata->mach_dev = platform_device_register_data(dev, mach->drv_name,
383									PLATFORM_DEVID_NONE, mach,
384									size);
385			if (IS_ERR(adata->mach_dev)) {
386				dev_err(dev,
387					"cannot register Machine device for SoundWire Interface\n");
388				return PTR_ERR(adata->mach_dev);
389			}
390		}
391
392	} else if (adata->is_pdm_dev && !adata->is_sdw_dev && adata->is_pdm_config) {
393		adata->mach_dev = platform_device_register_data(dev, "acp_ps_mach",
394								PLATFORM_DEVID_NONE, NULL, 0);
395		if (IS_ERR(adata->mach_dev)) {
396			dev_err(dev, "cannot register amd_ps_mach device\n");
397			return PTR_ERR(adata->mach_dev);
398		}
399	}
400	return 0;
401}
402
403static int get_acp63_device_config(struct pci_dev *pci, struct acp63_dev_data *acp_data)
404{
405	struct acpi_device *pdm_dev;
406	const union acpi_object *obj;
407	acpi_handle handle;
408	acpi_integer dmic_status;
409	bool is_dmic_dev = false;
410	bool is_sdw_dev = false;
411	bool wov_en, dmic_en;
412	int ret;
413
414	/* IF WOV entry not found, enable dmic based on acp-audio-device-type entry*/
415	wov_en = true;
416	dmic_en = false;
417
418	acp_hw_get_config(pci, acp_data);
419
420	if (acp_data->is_pdm_config) {
421		pdm_dev = acpi_find_child_device(ACPI_COMPANION(&pci->dev), ACP63_DMIC_ADDR, 0);
422		if (pdm_dev) {
423			/* is_dmic_dev flag will be set when ACP PDM controller device exists */
424			if (!acpi_dev_get_property(pdm_dev, "acp-audio-device-type",
425						   ACPI_TYPE_INTEGER, &obj) &&
426						   obj->integer.value == ACP_DMIC_DEV)
427				dmic_en = true;
428		}
429
430		handle = ACPI_HANDLE(&pci->dev);
431		ret = acpi_evaluate_integer(handle, "_WOV", NULL, &dmic_status);
432		if (!ACPI_FAILURE(ret))
433			wov_en = dmic_status;
434	}
435
436	if (dmic_en && wov_en)
437		is_dmic_dev = true;
438
439	if (acp_data->is_sdw_config) {
440		ret = acp_scan_sdw_devices(&pci->dev, ACP63_SDW_ADDR);
441		if (!ret && acp_data->info.link_mask)
442			is_sdw_dev = true;
443	}
444
445	acp_data->is_pdm_dev = is_dmic_dev;
446	acp_data->is_sdw_dev = is_sdw_dev;
447	if (!is_dmic_dev && !is_sdw_dev) {
448		dev_dbg(&pci->dev, "No PDM or SoundWire manager devices found\n");
449		return -ENODEV;
450	}
451	return 0;
452}
453
454static void acp63_fill_platform_dev_info(struct platform_device_info *pdevinfo,
455					 struct device *parent,
456					 struct fwnode_handle *fw_node,
457					 char *name, unsigned int id,
458					 const struct resource *res,
459					 unsigned int num_res,
460					 const void *data,
461					 size_t size_data)
462{
463	pdevinfo->name = name;
464	pdevinfo->id = id;
465	pdevinfo->parent = parent;
466	pdevinfo->num_res = num_res;
467	pdevinfo->res = res;
468	pdevinfo->data = data;
469	pdevinfo->size_data = size_data;
470	pdevinfo->fwnode = fw_node;
471}
472
473static int create_acp63_platform_devs(struct pci_dev *pci, struct acp63_dev_data *adata, u32 addr)
474{
475	struct platform_device_info pdevinfo;
476	struct device *parent;
477	int ret;
478
479	parent = &pci->dev;
480
481	if (adata->is_sdw_dev || adata->is_pdm_dev) {
482		adata->res = devm_kzalloc(&pci->dev, sizeof(struct resource), GFP_KERNEL);
483		if (!adata->res) {
484			ret = -ENOMEM;
485			goto de_init;
486		}
487		adata->res->flags = IORESOURCE_MEM;
488		adata->res->start = addr;
489		adata->res->end = addr + (ACP63_REG_END - ACP63_REG_START);
490		memset(&pdevinfo, 0, sizeof(pdevinfo));
491	}
492
493	if (adata->is_pdm_dev && adata->is_pdm_config) {
494		acp63_fill_platform_dev_info(&pdevinfo, parent, NULL, "acp_ps_pdm_dma",
495					     0, adata->res, 1, NULL, 0);
496
497		adata->pdm_dev = platform_device_register_full(&pdevinfo);
498		if (IS_ERR(adata->pdm_dev)) {
499			dev_err(&pci->dev,
500				"cannot register %s device\n", pdevinfo.name);
501			ret = PTR_ERR(adata->pdm_dev);
502			goto de_init;
503		}
504		memset(&pdevinfo, 0, sizeof(pdevinfo));
505		acp63_fill_platform_dev_info(&pdevinfo, parent, NULL, "dmic-codec",
506					     0, NULL, 0, NULL, 0);
507		adata->dmic_codec_dev = platform_device_register_full(&pdevinfo);
508		if (IS_ERR(adata->dmic_codec_dev)) {
509			dev_err(&pci->dev,
510				"cannot register %s device\n", pdevinfo.name);
511			ret = PTR_ERR(adata->dmic_codec_dev);
512			goto unregister_pdm_dev;
513		}
514	}
515	if (adata->is_sdw_dev && adata->is_sdw_config) {
516		ret = amd_sdw_probe(&pci->dev);
517		if (ret) {
518			if (adata->is_pdm_dev)
519				goto unregister_dmic_codec_dev;
520			else
521				goto de_init;
522		}
523		memset(&pdevinfo, 0, sizeof(pdevinfo));
524		acp63_fill_platform_dev_info(&pdevinfo, parent, NULL, "amd_ps_sdw_dma",
525					     0, adata->res, 1, NULL, 0);
526
527		adata->sdw_dma_dev = platform_device_register_full(&pdevinfo);
528		if (IS_ERR(adata->sdw_dma_dev)) {
529			dev_err(&pci->dev,
530				"cannot register %s device\n", pdevinfo.name);
531			ret = PTR_ERR(adata->sdw_dma_dev);
532			if (adata->is_pdm_dev)
533				goto unregister_dmic_codec_dev;
534			else
535				goto de_init;
536		}
537	}
538
539	return 0;
540unregister_dmic_codec_dev:
541		platform_device_unregister(adata->dmic_codec_dev);
542unregister_pdm_dev:
543		platform_device_unregister(adata->pdm_dev);
544de_init:
545	if (acp_hw_deinit(adata, &pci->dev))
546		dev_err(&pci->dev, "ACP de-init failed\n");
547	return ret;
548}
549
550static int acp_hw_init_ops(struct acp63_dev_data *adata, struct pci_dev *pci)
551{
552	adata->hw_ops = devm_kzalloc(&pci->dev, sizeof(struct acp_hw_ops),
553				     GFP_KERNEL);
554	if (!adata->hw_ops)
555		return -ENOMEM;
556
557	switch (adata->acp_rev) {
558	case ACP63_PCI_REV:
559		acp63_hw_init_ops(adata->hw_ops);
560		break;
561	case ACP70_PCI_REV:
562	case ACP71_PCI_REV:
563	case ACP72_PCI_REV:
564		acp70_hw_init_ops(adata->hw_ops);
565		break;
566	default:
567		dev_err(&pci->dev, "ACP device not found\n");
568		return -ENODEV;
569	}
570	return 0;
571}
572
573static int snd_acp63_probe(struct pci_dev *pci,
574			   const struct pci_device_id *pci_id)
575{
576	struct acp63_dev_data *adata;
577	u32 addr;
578	u32 irqflags, flag;
579	int ret;
580
581	irqflags = IRQF_SHARED;
582
583	/* Return if acp config flag is defined */
584	flag = snd_amd_acp_find_config(pci);
585	if (flag)
586		return -ENODEV;
587
588	/* ACP PCI revision id check for ACP6.3, ACP7.0 & ACP7.1 platforms */
589	switch (pci->revision) {
590	case ACP63_PCI_REV:
591	case ACP70_PCI_REV:
592	case ACP71_PCI_REV:
593	case ACP72_PCI_REV:
594		break;
595	default:
596		dev_dbg(&pci->dev, "acp63/acp70/acp71 pci device not found\n");
597		return -ENODEV;
598	}
599	if (pci_enable_device(pci)) {
600		dev_err(&pci->dev, "pci_enable_device failed\n");
601		return -ENODEV;
602	}
603
604	ret = pci_request_regions(pci, "AMD ACP6.2 audio");
605	if (ret < 0) {
606		dev_err(&pci->dev, "pci_request_regions failed\n");
607		goto disable_pci;
608	}
609	adata = devm_kzalloc(&pci->dev, sizeof(struct acp63_dev_data),
610			     GFP_KERNEL);
611	if (!adata) {
612		ret = -ENOMEM;
613		goto release_regions;
614	}
615
616	addr = pci_resource_start(pci, 0);
617	adata->acp63_base = devm_ioremap(&pci->dev, addr,
618					 pci_resource_len(pci, 0));
619	if (!adata->acp63_base) {
620		ret = -ENOMEM;
621		goto release_regions;
622	}
623	adata->addr = addr;
624	adata->reg_range = ACP63_REG_END - ACP63_REG_START;
625	adata->acp_rev = pci->revision;
626	adata->subsystem_vendor = pci->subsystem_vendor;
627	adata->subsystem_device = pci->subsystem_device;
628
629	pci_set_master(pci);
630	pci_set_drvdata(pci, adata);
631	mutex_init(&adata->acp_lock);
632	ret = acp_hw_init_ops(adata, pci);
633	if (ret) {
634		dev_err(&pci->dev, "ACP hw ops init failed\n");
635		goto release_regions;
636	}
637	ret = acp_hw_init(adata, &pci->dev);
638	if (ret)
639		goto release_regions;
640	ret = devm_request_threaded_irq(&pci->dev, pci->irq, acp63_irq_handler,
641					acp63_irq_thread, irqflags, "ACP_PCI_IRQ", adata);
642	if (ret) {
643		dev_err(&pci->dev, "ACP PCI IRQ request failed\n");
644		goto de_init;
645	}
646	ret = get_acp63_device_config(pci, adata);
647	/* ACP PCI driver probe should be continued even PDM or SoundWire Devices are not found */
648	if (ret) {
649		dev_dbg(&pci->dev, "get acp device config failed:%d\n", ret);
650		goto skip_pdev_creation;
651	}
652	ret = create_acp63_platform_devs(pci, adata, addr);
653	if (ret < 0) {
654		dev_err(&pci->dev, "ACP platform devices creation failed\n");
655		goto de_init;
656	}
657	if (adata->acp_rev >= ACP70_PCI_REV)
658		adata->machines = snd_soc_acpi_amd_acp70_sdw_machines;
659	else
660		adata->machines = snd_soc_acpi_amd_acp63_sdw_machines;
661
662	ret = acp63_machine_register(&pci->dev);
663	if (ret) {
664		dev_err(&pci->dev, "ACP machine register failed\n");
665		goto de_init;
666	}
667skip_pdev_creation:
668	device_set_wakeup_enable(&pci->dev, true);
669	pm_runtime_set_autosuspend_delay(&pci->dev, ACP_SUSPEND_DELAY_MS);
670	pm_runtime_use_autosuspend(&pci->dev);
671	pm_runtime_put_noidle(&pci->dev);
672	pm_runtime_allow(&pci->dev);
673	return 0;
674de_init:
675	if (acp_hw_deinit(adata, &pci->dev))
676		dev_err(&pci->dev, "ACP de-init failed\n");
677release_regions:
678	pci_release_regions(pci);
679disable_pci:
680	pci_disable_device(pci);
681
682	return ret;
683}
684
685static int snd_acp_suspend(struct device *dev)
686{
687	return acp_hw_suspend(dev);
688}
689
690static int snd_acp_runtime_resume(struct device *dev)
691{
692	return acp_hw_runtime_resume(dev);
693}
694
695static int snd_acp_resume(struct device *dev)
696{
697	return acp_hw_resume(dev);
698}
699
700static const struct dev_pm_ops acp63_pm_ops = {
701	RUNTIME_PM_OPS(snd_acp_suspend, snd_acp_runtime_resume, NULL)
702	SYSTEM_SLEEP_PM_OPS(snd_acp_suspend, snd_acp_resume)
703};
704
705static void snd_acp63_remove(struct pci_dev *pci)
706{
707	struct acp63_dev_data *adata;
708	int ret;
709
710	adata = pci_get_drvdata(pci);
711	if (adata->sdw) {
712		amd_sdw_exit(adata);
713		platform_device_unregister(adata->sdw_dma_dev);
714	}
715	if (adata->is_pdm_dev) {
716		platform_device_unregister(adata->pdm_dev);
717		platform_device_unregister(adata->dmic_codec_dev);
718	}
719	if (adata->mach_dev)
720		platform_device_unregister(adata->mach_dev);
721	ret = acp_hw_deinit(adata, &pci->dev);
722	if (ret)
723		dev_err(&pci->dev, "ACP de-init failed\n");
724	pm_runtime_forbid(&pci->dev);
725	pm_runtime_get_noresume(&pci->dev);
726	pci_release_regions(pci);
727	pci_disable_device(pci);
728}
729
730static const struct pci_device_id snd_acp63_ids[] = {
731	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, ACP_DEVICE_ID),
732	.class = PCI_CLASS_MULTIMEDIA_OTHER << 8,
733	.class_mask = 0xffffff },
734	{ 0, },
735};
736MODULE_DEVICE_TABLE(pci, snd_acp63_ids);
737
738static struct pci_driver ps_acp63_driver  = {
739	.name = KBUILD_MODNAME,
740	.id_table = snd_acp63_ids,
741	.probe = snd_acp63_probe,
742	.remove = snd_acp63_remove,
743	.driver = {
744		.pm = pm_ptr(&acp63_pm_ops),
745	}
746};
747
748module_pci_driver(ps_acp63_driver);
749
750MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
751MODULE_AUTHOR("Syed.SabaKareem@amd.com");
752MODULE_DESCRIPTION("AMD common ACP PCI driver for ACP6.3, ACP7.0 & ACP7.1 platforms");
753MODULE_IMPORT_NS("SOUNDWIRE_AMD_INIT");
754MODULE_IMPORT_NS("SND_AMD_SOUNDWIRE_ACPI");
755MODULE_LICENSE("GPL v2");