1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
11  * Generic PCI interface for ACP device
16 #include <linux/pci.h>
22 #include "../mach-config.h"
35 		.end = ACP3x_REG_END - ACP3x_REG_START,
47 static int acp_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)  in acp_pci_probe()  argument
50 	struct device *dev = &pci->dev;  in acp_pci_probe()  local
57 	flag = snd_amd_acp_find_config(pci);  in acp_pci_probe()
59 		return -ENODEV;  in acp_pci_probe()
61 	chip = devm_kzalloc(&pci->dev, sizeof(*chip), GFP_KERNEL);  in acp_pci_probe()
63 		return -ENOMEM;  in acp_pci_probe()
65 	if (pci_enable_device(pci))  in acp_pci_probe()
66 		return dev_err_probe(&pci->dev, -ENODEV,  in acp_pci_probe()
69 	ret = pci_request_regions(pci, "AMD ACP3x audio");  in acp_pci_probe()
71 		dev_err(&pci->dev, "pci_request_regions failed\n");  in acp_pci_probe()
72 		ret = -ENOMEM;  in acp_pci_probe()
76 	pci_set_master(pci);  in acp_pci_probe()
81 	switch (pci->revision) {  in acp_pci_probe()
83 		chip->name = "acp_asoc_renoir";  in acp_pci_probe()
84 		chip->acp_rev = ACP3X_DEV;  in acp_pci_probe()
87 		chip->name = "acp_asoc_rembrandt";  in acp_pci_probe()
88 		chip->acp_rev = ACP6X_DEV;  in acp_pci_probe()
91 		dev_err(dev, "Unsupported device revision:0x%x\n", pci->revision);  in acp_pci_probe()
92 		ret = -EINVAL;  in acp_pci_probe()
96 	dmic_dev = platform_device_register_data(dev, "dmic-codec", PLATFORM_DEVID_NONE, NULL, 0);  in acp_pci_probe()
98 		dev_err(dev, "failed to create DMIC device\n");  in acp_pci_probe()
103 	addr = pci_resource_start(pci, 0);  in acp_pci_probe()
104 	chip->base = devm_ioremap(&pci->dev, addr, pci_resource_len(pci, 0));  in acp_pci_probe()
105 	if (!chip->base) {  in acp_pci_probe()
106 		ret = -ENOMEM;  in acp_pci_probe()
114 	res = devm_kcalloc(&pci->dev, num_res, sizeof(struct resource), GFP_KERNEL);  in acp_pci_probe()
116 		ret = -ENOMEM;  in acp_pci_probe()
121 		res[i].name = res_acp->name;  in acp_pci_probe()
122 		res[i].flags = res_acp->flags;  in acp_pci_probe()
123 		res[i].start = addr + res_acp->start;  in acp_pci_probe()
124 		res[i].end = addr + res_acp->end;  in acp_pci_probe()
125 		if (res_acp->flags == IORESOURCE_IRQ) {  in acp_pci_probe()
126 			res[i].start = pci->irq;  in acp_pci_probe()
133 	pdevinfo.name = chip->name;  in acp_pci_probe()
135 	pdevinfo.parent = &pci->dev;  in acp_pci_probe()
143 		dev_err(&pci->dev, "cannot register %s device\n", pdevinfo.name);  in acp_pci_probe()
147 	chip->chip_pdev = pdev;  in acp_pci_probe()
148 	dev_set_drvdata(&pci->dev, chip);  in acp_pci_probe()
149 	pm_runtime_set_autosuspend_delay(&pci->dev, 2000);  in acp_pci_probe()
150 	pm_runtime_use_autosuspend(&pci->dev);  in acp_pci_probe()
151 	pm_runtime_put_noidle(&pci->dev);  in acp_pci_probe()
152 	pm_runtime_allow(&pci->dev);  in acp_pci_probe()
158 	pci_release_regions(pci);  in acp_pci_probe()
160 	pci_disable_device(pci);  in acp_pci_probe()
165 static int __maybe_unused snd_acp_suspend(struct device *dev)  in snd_acp_suspend()  argument
170 	chip = dev_get_drvdata(dev);  in snd_acp_suspend()
171 	ret = acp_deinit(chip->base);  in snd_acp_suspend()
173 		dev_err(dev, "ACP de-init failed\n");  in snd_acp_suspend()
177 static int __maybe_unused snd_acp_resume(struct device *dev)  in snd_acp_resume()  argument
184 	chip = dev_get_drvdata(dev);  in snd_acp_resume()
187 		dev_err(dev, "ACP init failed\n");  in snd_acp_resume()
188 	if (chip->chip_pdev) {  in snd_acp_resume()
189 		child = chip->chip_pdev->dev;  in snd_acp_resume()
202 static void acp_pci_remove(struct pci_dev *pci)  in acp_pci_remove()  argument
207 	chip = pci_get_drvdata(pci);  in acp_pci_remove()
208 	pm_runtime_forbid(&pci->dev);  in acp_pci_remove()
209 	pm_runtime_get_noresume(&pci->dev);  in acp_pci_remove()
214 	ret = acp_deinit(chip->base);  in acp_pci_remove()
216 		dev_err(&pci->dev, "ACP de-init failed\n");  in acp_pci_remove()
219 /* PCI IDs */
224 MODULE_DEVICE_TABLE(pci, acp_pci_ids);