11  * Generic PCI interface for ACP device
16 #include <linux/pci.h>
57 static int create_acp_platform_devs(struct pci_dev *pci, struct acp_chip_info *chip, u32 addr)  in create_acp_platform_devs()  argument
63 	parent = &pci->dev;  in create_acp_platform_devs()
66 		chip->res = devm_kzalloc(&pci->dev, sizeof(struct resource), GFP_KERNEL);  in create_acp_platform_devs()
83 		dev_err(&pci->dev,  in create_acp_platform_devs()
89 		chip->dmic_codec_dev = platform_device_register_data(&pci->dev,  in create_acp_platform_devs()
94 			dev_err(&pci->dev, "failed to create DMIC device\n");  in create_acp_platform_devs()
106 static int acp_pci_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)  in acp_pci_probe()  argument
108 	struct device *dev = &pci->dev;  in acp_pci_probe()
113 	flag = snd_amd_acp_find_config(pci);  in acp_pci_probe()
117 	chip = devm_kzalloc(&pci->dev, sizeof(*chip), GFP_KERNEL);  in acp_pci_probe()
121 	if (pci_enable_device(pci))  in acp_pci_probe()
122 		return dev_err_probe(&pci->dev, -ENODEV,  in acp_pci_probe()
125 	ret = pci_request_regions(pci, "AMD ACP3x audio");  in acp_pci_probe()
127 		dev_err(&pci->dev, "pci_request_regions failed\n");  in acp_pci_probe()
132 	pci_set_master(pci);  in acp_pci_probe()
134 	chip->acp_rev = pci->revision;  in acp_pci_probe()
135 	switch (pci->revision) {  in acp_pci_probe()
162 		dev_err(dev, "Unsupported device revision:0x%x\n", pci->revision);  in acp_pci_probe()
168 	addr = pci_resource_start(pci, 0);  in acp_pci_probe()
169 	chip->base = devm_ioremap(&pci->dev, addr, pci_resource_len(pci, 0));  in acp_pci_probe()
182 	ret = devm_request_irq(dev, pci->irq, irq_handler,  in acp_pci_probe()
185 		dev_err(&pci->dev, "ACP I2S IRQ request failed %d\n", ret);  in acp_pci_probe()
189 	check_acp_config(pci, chip);  in acp_pci_probe()
193 	ret = create_acp_platform_devs(pci, chip, addr);  in acp_pci_probe()
195 		dev_err(&pci->dev, "ACP platform devices creation failed\n");  in acp_pci_probe()
207 	dev_set_drvdata(&pci->dev, chip);  in acp_pci_probe()
208 	pm_runtime_set_autosuspend_delay(&pci->dev, 2000);  in acp_pci_probe()
209 	pm_runtime_use_autosuspend(&pci->dev);  in acp_pci_probe()
210 	pm_runtime_put_noidle(&pci->dev);  in acp_pci_probe()
211 	pm_runtime_allow(&pci->dev);  in acp_pci_probe()
217 	pci_release_regions(pci);  in acp_pci_probe()
219 	pci_disable_device(pci);  in acp_pci_probe()
258 static void acp_pci_remove(struct pci_dev *pci)  in acp_pci_remove()  argument
263 	chip = pci_get_drvdata(pci);  in acp_pci_remove()
264 	pm_runtime_forbid(&pci->dev);  in acp_pci_remove()
265 	pm_runtime_get_noresume(&pci->dev);  in acp_pci_remove()
275 		dev_err(&pci->dev, "ACP de-init failed\n");  in acp_pci_remove()
278 /* PCI IDs */
283 MODULE_DEVICE_TABLE(pci, acp_pci_ids);
297 MODULE_DESCRIPTION("AMD ACP common PCI support");