diff --git a/src/drivers/pcie/generic/chip.h b/src/drivers/pcie/generic/chip.h
index 5d762ec250..1d9f0a62ed 100644
--- a/src/drivers/pcie/generic/chip.h
+++ b/src/drivers/pcie/generic/chip.h
@@ -6,15 +6,6 @@
 #include <types.h>
 
 struct drivers_pcie_generic_config {
-	bool is_untrusted;
-	/*
-	 * This needs to be pointed to the device instance in the device tree when
-	 * there is already a device with the root port so that the ACPI code to be
-	 * generated will be added to that existing device.
-	 * By default, an ACPI device named 'DEV0' is created under the root port if
-	 * this does not reference to a device.
-	 */
-	DEVTREE_CONST struct device *companion_dev;
 };
 
 #endif /* _PCIE_GENERIC_H_ */
diff --git a/src/drivers/pcie/generic/generic.c b/src/drivers/pcie/generic/generic.c
index 0a9a243518..a8dd1d9745 100644
--- a/src/drivers/pcie/generic/generic.c
+++ b/src/drivers/pcie/generic/generic.c
@@ -9,17 +9,12 @@
 
 static const char *pcie_generic_acpi_name(const struct device *dev)
 {
-	struct drivers_pcie_generic_config *config = dev->chip_info;
-
-	if (config->companion_dev)
-		return acpi_device_name(config->companion_dev);
 	return "DEV0";
 }
 
 static void pcie_generic_fill_ssdt(const struct device *dev)
 {
 	struct drivers_pcie_generic_config *config;
-	struct acpi_dp *dsd;
 
 	if (!is_dev_enabled(dev))
 		return;
@@ -27,28 +22,20 @@ static void pcie_generic_fill_ssdt(const struct device *dev)
 	pci_rom_ssdt(dev);
 
 	config = dev->chip_info;
-	if (!config || !config->is_untrusted || !dev->bus || !dev->bus->dev)
+	if (!config || !dev->bus || !dev->bus->dev)
 		return;
 
 	const char *scope;
 	const char *name;
 
-	/* Code will be generated under companion device instead if present. */
-	if (config->companion_dev)
-		scope = acpi_device_path(config->companion_dev);
-	else
-		scope = acpi_device_path(dev->bus->dev);
+	scope = acpi_device_path(dev->bus->dev);
 	name = acpi_device_name(dev);
+
 	acpigen_write_scope(scope);
-	if (!config->companion_dev) {
-		acpigen_write_device(name);
-		acpigen_write_ADR_pci_device(dev);
-	}
-	dsd = acpi_dp_new_table("_DSD");
-	acpi_dp_add_integer(dsd, "DmaProperty", 1);
-	acpi_dp_write(dsd);
-	if (!config->companion_dev)
-		acpigen_write_device_end();
+	acpigen_write_device(name);
+	acpigen_write_ADR_pci_device(dev);
+
+	acpigen_write_device_end();
 	acpigen_write_scope_end();
 
 	printk(BIOS_INFO, "%s.%s: Enable ACPI properties for %s (%s)\n", scope, name,