1 // SPDX-License-Identifier: GPL-2.0+
3 // AMD Vangogh ACP PCI Driver
7 #include <linux/pci.h>
45 	return -ETIMEDOUT;  in acp5x_power_on()
69 	return -ETIMEDOUT;  in acp5x_reset()
123 static int snd_acp5x_probe(struct pci_dev *pci,  in snd_acp5x_probe()  argument
133 	flag = snd_amd_acp_find_config(pci);  in snd_acp5x_probe()
135 		return -ENODEV;  in snd_acp5x_probe()
138 	if (pci->revision != 0x50)  in snd_acp5x_probe()
139 		return -ENODEV;  in snd_acp5x_probe()
141 	if (pci_enable_device(pci)) {  in snd_acp5x_probe()
142 		dev_err(&pci->dev, "pci_enable_device failed\n");  in snd_acp5x_probe()
143 		return -ENODEV;  in snd_acp5x_probe()
146 	ret = pci_request_regions(pci, "AMD ACP5x audio");  in snd_acp5x_probe()
148 		dev_err(&pci->dev, "pci_request_regions failed\n");  in snd_acp5x_probe()
152 	adata = devm_kzalloc(&pci->dev, sizeof(struct acp5x_dev_data),  in snd_acp5x_probe()
155 		ret = -ENOMEM;  in snd_acp5x_probe()
158 	addr = pci_resource_start(pci, 0);  in snd_acp5x_probe()
159 	adata->acp5x_base = devm_ioremap(&pci->dev, addr,  in snd_acp5x_probe()
160 					 pci_resource_len(pci, 0));  in snd_acp5x_probe()
161 	if (!adata->acp5x_base) {  in snd_acp5x_probe()
162 		ret = -ENOMEM;  in snd_acp5x_probe()
165 	pci_set_master(pci);  in snd_acp5x_probe()
166 	pci_set_drvdata(pci, adata);  in snd_acp5x_probe()
167 	ret = acp5x_init(adata->acp5x_base);  in snd_acp5x_probe()
171 	val = acp_readl(adata->acp5x_base + ACP_PIN_CONFIG);  in snd_acp5x_probe()
174 		adata->res = devm_kzalloc(&pci->dev,  in snd_acp5x_probe()
177 		if (!adata->res) {  in snd_acp5x_probe()
178 			ret = -ENOMEM;  in snd_acp5x_probe()
182 		adata->res[0].name = "acp5x_i2s_iomem";  in snd_acp5x_probe()
183 		adata->res[0].flags = IORESOURCE_MEM;  in snd_acp5x_probe()
184 		adata->res[0].start = addr;  in snd_acp5x_probe()
185 		adata->res[0].end = addr + (ACP5x_REG_END - ACP5x_REG_START);  in snd_acp5x_probe()
187 		adata->res[1].name = "acp5x_i2s_sp";  in snd_acp5x_probe()
188 		adata->res[1].flags = IORESOURCE_MEM;  in snd_acp5x_probe()
189 		adata->res[1].start = addr + ACP5x_I2STDM_REG_START;  in snd_acp5x_probe()
190 		adata->res[1].end = addr + ACP5x_I2STDM_REG_END;  in snd_acp5x_probe()
192 		adata->res[2].name = "acp5x_i2s_hs";  in snd_acp5x_probe()
193 		adata->res[2].flags = IORESOURCE_MEM;  in snd_acp5x_probe()
194 		adata->res[2].start = addr + ACP5x_HS_TDM_REG_START;  in snd_acp5x_probe()
195 		adata->res[2].end = addr + ACP5x_HS_TDM_REG_END;  in snd_acp5x_probe()
197 		adata->res[3].name = "acp5x_i2s_irq";  in snd_acp5x_probe()
198 		adata->res[3].flags = IORESOURCE_IRQ;  in snd_acp5x_probe()
199 		adata->res[3].start = pci->irq;  in snd_acp5x_probe()
200 		adata->res[3].end = adata->res[3].start;  in snd_acp5x_probe()
202 		adata->acp5x_audio_mode = ACP5x_I2S_MODE;  in snd_acp5x_probe()
207 		pdevinfo[0].parent = &pci->dev;  in snd_acp5x_probe()
209 		pdevinfo[0].res = &adata->res[0];  in snd_acp5x_probe()
215 		pdevinfo[1].parent = &pci->dev;  in snd_acp5x_probe()
217 		pdevinfo[1].res = &adata->res[1];  in snd_acp5x_probe()
221 		pdevinfo[2].parent = &pci->dev;  in snd_acp5x_probe()
223 		pdevinfo[2].res = &adata->res[2];  in snd_acp5x_probe()
227 		pdevinfo[3].parent = &pci->dev;  in snd_acp5x_probe()
229 			adata->pdev[i] =  in snd_acp5x_probe()
231 			if (IS_ERR(adata->pdev[i])) {  in snd_acp5x_probe()
232 				dev_err(&pci->dev, "cannot register %s device\n",  in snd_acp5x_probe()
234 				ret = PTR_ERR(adata->pdev[i]);  in snd_acp5x_probe()
240 		dev_info(&pci->dev, "ACP audio mode : %d\n", val);  in snd_acp5x_probe()
242 	pm_runtime_set_autosuspend_delay(&pci->dev, 2000);  in snd_acp5x_probe()
243 	pm_runtime_use_autosuspend(&pci->dev);  in snd_acp5x_probe()
244 	pm_runtime_put_noidle(&pci->dev);  in snd_acp5x_probe()
245 	pm_runtime_allow(&pci->dev);  in snd_acp5x_probe()
249 	for (--i; i >= 0; i--)  in snd_acp5x_probe()
250 		platform_device_unregister(adata->pdev[i]);  in snd_acp5x_probe()
252 	if (acp5x_deinit(adata->acp5x_base))  in snd_acp5x_probe()
253 		dev_err(&pci->dev, "ACP de-init failed\n");  in snd_acp5x_probe()
255 	pci_release_regions(pci);  in snd_acp5x_probe()
257 	pci_disable_device(pci);  in snd_acp5x_probe()
262 static int __maybe_unused snd_acp5x_suspend(struct device *dev)  in snd_acp5x_suspend()  argument
267 	adata = dev_get_drvdata(dev);  in snd_acp5x_suspend()
268 	ret = acp5x_deinit(adata->acp5x_base);  in snd_acp5x_suspend()
270 		dev_err(dev, "ACP de-init failed\n");  in snd_acp5x_suspend()
272 		dev_dbg(dev, "ACP de-initialized\n");  in snd_acp5x_suspend()
277 static int __maybe_unused snd_acp5x_resume(struct device *dev)  in snd_acp5x_resume()  argument
282 	adata = dev_get_drvdata(dev);  in snd_acp5x_resume()
283 	ret = acp5x_init(adata->acp5x_base);  in snd_acp5x_resume()
285 		dev_err(dev, "ACP init failed\n");  in snd_acp5x_resume()
297 static void snd_acp5x_remove(struct pci_dev *pci)  in snd_acp5x_remove()  argument
302 	adata = pci_get_drvdata(pci);  in snd_acp5x_remove()
303 	if (adata->acp5x_audio_mode == ACP5x_I2S_MODE) {  in snd_acp5x_remove()
305 			platform_device_unregister(adata->pdev[i]);  in snd_acp5x_remove()
307 	ret = acp5x_deinit(adata->acp5x_base);  in snd_acp5x_remove()
309 		dev_err(&pci->dev, "ACP de-init failed\n");  in snd_acp5x_remove()
310 	pm_runtime_forbid(&pci->dev);  in snd_acp5x_remove()
311 	pm_runtime_get_noresume(&pci->dev);  in snd_acp5x_remove()
312 	pci_release_regions(pci);  in snd_acp5x_remove()
313 	pci_disable_device(pci);  in snd_acp5x_remove()
322 MODULE_DEVICE_TABLE(pci, snd_acp5x_ids);
337 MODULE_DESCRIPTION("AMD Vangogh ACP PCI driver");