29 	struct regulator *vref;  member
67 		if (dmic->vref) {  in dmic_aif_event()
68 			ret = regulator_enable(dmic->vref);  in dmic_aif_event()
80 		if (dmic->vref)  in dmic_aif_event()
81 			ret = regulator_disable(dmic->vref);  in dmic_aif_event()
116 	dmic->vref = devm_regulator_get_optional(component->dev, "vref");  in dmic_component_probe()
117 	if (IS_ERR(dmic->vref)) {  in dmic_component_probe()
118 		if (PTR_ERR(dmic->vref) != -ENODEV)  in dmic_component_probe()
119 			return dev_err_probe(component->dev, PTR_ERR(dmic->vref),  in dmic_component_probe()
120 					     "Failed to get vref\n");  in dmic_component_probe()
121 		dmic->vref = NULL;  in dmic_component_probe()