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SubjectRe: [RESEND PATCH v5 6/6] ASoC: amd: Added ACP3x system resume and runtime pm
Hi Ravulapati,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on asoc/for-next]
[also build test WARNING on next-20191113]
[cannot apply to v5.4-rc7]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url: https://github.com/0day-ci/linux/commits/Ravulapati-Vishnu-vardhan-rao/ASoC-amd-Create-multiple-I2S-platform-device-Endpoint/20191113-230604
base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
config: x86_64-randconfig-h001-20191113 (attached as .config)
compiler: gcc-7 (Debian 7.4.0-14) 7.4.0
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

sound/soc/amd/raven/pci-acp3x.c: In function 'acp3x_power_on':
sound/soc/amd/raven/pci-acp3x.c:29:6: warning: unused variable 'ret' [-Wunused-variable]
int ret = 0;
^~~
sound/soc/amd/raven/pci-acp3x.c: In function 'acp3x_power_off':
>> sound/soc/amd/raven/pci-acp3x.c:68:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^
sound/soc/amd/raven/pci-acp3x.c: In function 'acp3x_power_on':
sound/soc/amd/raven/pci-acp3x.c:50:1: warning: control reaches end of non-void function [-Wreturn-type]
}
^

vim +68 sound/soc/amd/raven/pci-acp3x.c

24
25 static int acp3x_power_on(void __iomem *acp3x_base)
26 {
27 u32 val;
28 u32 timeout = 0;
> 29 int ret = 0;
30
31 val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS);
32
33 if (val == 0)
34 return val;
35
36 if (!((val & ACP_PGFSM_STATUS_MASK) ==
37 ACP_POWER_ON_IN_PROGRESS))
38 rv_writel(ACP_PGFSM_CNTL_POWER_ON_MASK,
39 acp3x_base + mmACP_PGFSM_CONTROL);
40 while (++timeout < DELAY) {
41 val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS);
42 if (!val)
43 break;
44 udelay(1);
45 if (timeout > 500) {
46 pr_err("ACP is Not Powered ON\n");
47 return -ETIMEDOUT;
48 }
49 }
50 }
51 static int acp3x_power_off(void __iomem *acp3x_base)
52 {
53 u32 val;
54 u32 timeout = 0;
55
56 rv_writel(ACP_PGFSM_CNTL_POWER_OFF_MASK,
57 acp3x_base + mmACP_PGFSM_CONTROL);
58 while (++timeout < DELAY) {
59 val = rv_readl(acp3x_base + mmACP_PGFSM_STATUS);
60 if ((val & ACP_PGFSM_STATUS_MASK) == ACP_POWERED_OFF)
61 return 0;
62 udelay(1);
63 if (timeout > 500) {
64 pr_err("ACP is Not Powered OFF\n");
65 return -ETIMEDOUT;
66 }
67 }
> 68 }
69 static int acp3x_reset(void __iomem *acp3x_base)
70 {
71 u32 val, timeout;
72
73 rv_writel(1, acp3x_base + mmACP_SOFT_RESET);
74 timeout = 0;
75 while (++timeout < DELAY) {
76 val = rv_readl(acp3x_base + mmACP_SOFT_RESET);
77 if ((val & ACP3x_SOFT_RESET__SoftResetAudDone_MASK) ||
78 timeout > 100) {
79 if (val & ACP3x_SOFT_RESET__SoftResetAudDone_MASK)
80 break;
81 return -ENODEV;
82 }
83 cpu_relax();
84 }
85 rv_writel(0, acp3x_base + mmACP_SOFT_RESET);
86 timeout = 0;
87 while (++timeout < DELAY) {
88 val = rv_readl(acp3x_base + mmACP_SOFT_RESET);
89 if (!val)
90 break;
91 if (timeout > 100)
92 return -ENODEV;
93 cpu_relax();
94 }
95 return 0;
96 }
97 static int acp3x_init(void __iomem *acp3x_base)
98 {
99 int ret;
100
101 /* power on */
102 ret = acp3x_power_on(acp3x_base);
103 if (ret) {
104 pr_err("ACP3x power on failed\n");
105 return ret;
106 }
107 /* Reset */
108 ret = acp3x_reset(acp3x_base);
109 if (ret) {
110 pr_err("ACP3x reset failed\n");
111 return ret;
112 }
113 return 0;
114 }
115 static int acp3x_deinit(void __iomem *acp3x_base)
116 {
117 int ret;
118
119 /* Reset */
120 ret = acp3x_reset(acp3x_base);
121 if (ret) {
122 pr_err("ACP3x reset failed\n");
123 return ret;
124 }
125 /* power off */
126 ret = acp3x_power_off(acp3x_base);
127 if (ret) {
128 pr_err("ACP3x power off failed\n");
129 return ret;
130 }
131 return 0;
132 }
133 static int snd_acp3x_probe(struct pci_dev *pci,
134 const struct pci_device_id *pci_id)
135 {
136 int ret;
137 u32 addr, val, i;
138 struct acp3x_dev_data *adata;
139 struct platform_device_info pdevinfo[ACP3x_DEVS];
140 unsigned int irqflags;
141
142 if (pci_enable_device(pci)) {
143 dev_err(&pci->dev, "pci_enable_device failed\n");
144 return -ENODEV;
145 }
146
147 ret = pci_request_regions(pci, "AMD ACP3x audio");
148 if (ret < 0) {
149 dev_err(&pci->dev, "pci_request_regions failed\n");
150 goto disable_pci;
151 }
152
153 adata = devm_kzalloc(&pci->dev, sizeof(struct acp3x_dev_data),
154 GFP_KERNEL);
155 if (!adata) {
156 ret = -ENOMEM;
157 goto release_regions;
158 }
159
160 /* check for msi interrupt support */
161 ret = pci_enable_msi(pci);
162 if (ret)
163 /* msi is not enabled */
164 irqflags = IRQF_SHARED;
165 else
166 /* msi is enabled */
167 irqflags = 0;
168
169 addr = pci_resource_start(pci, 0);
170 adata->acp3x_base = ioremap(addr, pci_resource_len(pci, 0));
171 if (!adata->acp3x_base) {
172 ret = -ENOMEM;
173 goto release_regions;
174 }
175 pci_set_master(pci);
176 pci_set_drvdata(pci, adata);
177 ret = acp3x_init(adata->acp3x_base);
178 if (ret)
179 return -ENODEV;
180
181
182 val = rv_readl(adata->acp3x_base + mmACP_I2S_PIN_CONFIG);
183 switch (val) {
184 case I2S_MODE:
185 adata->res = devm_kzalloc(&pci->dev,
186 sizeof(struct resource) * 4,
187 GFP_KERNEL);
188 if (!adata->res) {
189 ret = -ENOMEM;
190 goto unmap_mmio;
191 }
192
193 adata->res[0].name = "acp3x_i2s_iomem";
194 adata->res[0].flags = IORESOURCE_MEM;
195 adata->res[0].start = addr;
196 adata->res[0].end = addr + (ACP3x_REG_END - ACP3x_REG_START);
197
198 adata->res[1].name = "acp3x_i2s_sp";
199 adata->res[1].flags = IORESOURCE_MEM;
200 adata->res[1].start = addr + ACP3x_I2STDM_REG_START;
201 adata->res[1].end = addr + ACP3x_I2STDM_REG_END;
202
203 adata->res[2].name = "acp3x_i2s_bt";
204 adata->res[2].flags = IORESOURCE_MEM;
205 adata->res[2].start = addr + ACP3x_BT_TDM_REG_START;
206 adata->res[2].end = addr + ACP3x_BT_TDM_REG_END;
207
208 adata->res[3].name = "acp3x_i2s_irq";
209 adata->res[3].flags = IORESOURCE_IRQ;
210 adata->res[3].start = pci->irq;
211 adata->res[3].end = adata->res[3].start;
212
213 adata->acp3x_audio_mode = ACP3x_I2S_MODE;
214
215 memset(&pdevinfo, 0, sizeof(pdevinfo));
216 pdevinfo[0].name = "acp3x_rv_i2s_dma";
217 pdevinfo[0].id = 0;
218 pdevinfo[0].parent = &pci->dev;
219 pdevinfo[0].num_res = 4;
220 pdevinfo[0].res = &adata->res[0];
221 pdevinfo[0].data = &irqflags;
222 pdevinfo[0].size_data = sizeof(irqflags);
223
224 pdevinfo[1].name = "acp3x_i2s_playcap";
225 pdevinfo[1].id = 0;
226 pdevinfo[1].parent = &pci->dev;
227 pdevinfo[1].num_res = 1;
228 pdevinfo[1].res = &adata->res[1];
229
230 pdevinfo[2].name = "acp3x_i2s_playcap";
231 pdevinfo[2].id = 1;
232 pdevinfo[2].parent = &pci->dev;
233 pdevinfo[2].num_res = 1;
234 pdevinfo[2].res = &adata->res[2];
235 for (i = 0; i < ACP3x_DEVS ; i++) {
236 adata->pdev[i] =
237 platform_device_register_full(&pdevinfo[i]);
238 if (IS_ERR(adata->pdev[i])) {
239 dev_err(&pci->dev, "cannot register %s device\n",
240 pdevinfo[i].name);
241 ret = PTR_ERR(adata->pdev[i]);
242 goto unmap_mmio;
243 }
244 }
245 break;
246 default:
247 dev_err(&pci->dev, "Invalid ACP audio mode : %d\n", val);
248 ret = -ENODEV;
249 goto unmap_mmio;
250 }
251 pm_runtime_set_autosuspend_delay(&pci->dev, 10000);
252 pm_runtime_use_autosuspend(&pci->dev);
253 pm_runtime_set_active(&pci->dev);
254 pm_runtime_put_noidle(&pci->dev);
255 pm_runtime_enable(&pci->dev);
256 return 0;
257
258 unmap_mmio:
259 ret = acp3x_deinit(adata->acp3x_base);
260 if (ret)
261 dev_err(&pci->dev, "ACP de-init failed\n");
262 else
263 dev_info(&pci->dev, "ACP de-initialized\n");
264 pci_disable_msi(pci);
265 for (i = 0 ; i < ACP3x_DEVS ; i++)
266 platform_device_unregister(adata->pdev[i]);
267 kfree(adata->res);
268 iounmap(adata->acp3x_base);
269 release_regions:
270 pci_release_regions(pci);
271 disable_pci:
272 pci_disable_device(pci);
273
274 return ret;
275 }
276 static int snd_acp3x_suspend(struct device *dev)
277 {
278 int status;
279 struct acp3x_dev_data *adata = dev_get_drvdata(dev);
280
281 status = acp3x_deinit(adata->acp3x_base);
282 if (status)
283 dev_err(dev, "ACP de-init failed\n");
284 else
285 dev_info(dev, "ACP de-initialized\n");
286
287 return 0;
288 }
289 static int snd_acp3x_resume(struct device *dev)
290 {
291 int status;
292 struct acp3x_dev_data *adata = dev_get_drvdata(dev);
293
294 status = acp3x_init(adata->acp3x_base);
295 if (status) {
296 dev_err(dev, "ACP init failed\n");
297 return status;
298 }
299 return 0;
300 }
301 static const struct dev_pm_ops acp3x_pm = {
302 .runtime_suspend = snd_acp3x_suspend,
303 .runtime_resume = snd_acp3x_resume,
304 .resume = snd_acp3x_resume,
305 };
306 static void snd_acp3x_remove(struct pci_dev *pci)
307 {
308 int i, ret;
309 struct acp3x_dev_data *adata = pci_get_drvdata(pci);
310
311 if (adata->acp3x_audio_mode == ACP3x_I2S_MODE) {
312 for (i = 0 ; i < ACP3x_DEVS ; i++)
313 platform_device_unregister(adata->pdev[i]);
314 }
315 ret = acp3x_deinit(adata->acp3x_base);
316 if (ret)
317 dev_err(&pci->dev, "ACP de-init failed\n");
318 else
319 dev_info(&pci->dev, "ACP de-initialized\n");
320 iounmap(adata->acp3x_base);
321 pm_runtime_disable(&pci->dev);
322 pm_runtime_get_noresume(&pci->dev);
323 pci_disable_msi(pci);
324 pci_release_regions(pci);
325 pci_disable_device(pci);
326 }
327 static const struct pci_device_id snd_acp3x_ids[] = {
328 { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x15e2),
329 .class = PCI_CLASS_MULTIMEDIA_OTHER << 8,
330 .class_mask = 0xffffff },
331 { 0, },
332 };
333 MODULE_DEVICE_TABLE(pci, snd_acp3x_ids);
334

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
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