[Not for upstream] ASoC: SOF: Intel: add DPM_FLAG_SMART_SUSPEND

bardliao · bardliao · commit b9d239096e7a · 2025-04-18T10:51:20.000+08:00
With commit: bca84a7 ("PM: sleep: Use DPM_FLAG_SMART_SUSPEND conditionally"), DPM_FLAG_SMART_SUSPEND will only be used when the devices parent and suppliers are all with the "smart suspend" feature enabled. The feature is needed for Intel SoundWire links, and SOF PCI device is its parent. Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
diff --git a/sound/soc/sof/intel/hda.c b/sound/soc/sof/intel/hda.c
@@ -1506,6 +1506,7 @@ int hda_pci_intel_probe(struct pci_dev *pci, const struct pci_device_id *pci_id)
 		return -ENODEV;
 	}
 
+	dev_pm_set_driver_flags(&pci->dev, DPM_FLAG_SMART_SUSPEND);
 	return sof_pci_probe(pci, pci_id);
 }
 EXPORT_SYMBOL_NS(hda_pci_intel_probe, "SND_SOC_SOF_INTEL_HDA_GENERIC");

Original file line number	Diff line number	Diff line change
`@@ -1506,6 +1506,7 @@ int hda_pci_intel_probe(struct pci_dev pci, const struct pci_device_id pci_id)`
`1506`	`1506`	`return -ENODEV;`
`1507`	`1507`	`}`
`1508`	`1508`
	`1509`	`+ dev_pm_set_driver_flags(&pci->dev, DPM_FLAG_SMART_SUSPEND);`
`1509`	`1510`	`return sof_pci_probe(pci, pci_id);`
`1510`	`1511`	`}`
`1511`	`1512`	`EXPORT_SYMBOL_NS(hda_pci_intel_probe, "SND_SOC_SOF_INTEL_HDA_GENERIC");`