--- zzzz-none-000/linux-2.6.39.4/drivers/pci/pcie/portdrv_core.c	2011-08-03 19:43:28.000000000 +0000
+++ puma6-atom-6490-729/linux-2.6.39.4/drivers/pci/pcie/portdrv_core.c	2021-11-10 13:38:15.000000000 +0000
@@ -6,6 +6,12 @@
  * Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
  */
 
+/******************************************************************
+
+ Includes Intel Corporation's changes/modifications dated: 07/2011.
+ Changed/modified portions - Copyright(c) 2011, Intel Corporation.
+
+******************************************************************/
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/kernel.h>
@@ -411,7 +417,18 @@
  */
 int pcie_port_device_suspend(struct device *dev)
 {
+#ifdef CONFIG_ARCH_GEN3
+	int ret;
+	struct pci_dev *pdev = to_pci_dev(dev);
+	ret = device_for_each_child(dev, NULL, suspend_iter);
+	if (!ret)
+		ret = pci_save_state(pdev);
+	pci_disable_device(pdev);
+	pci_set_power_state(pdev, PCI_D3hot);
+	return ret;
+#else 
 	return device_for_each_child(dev, NULL, suspend_iter);
+#endif
 }
 
 static int resume_iter(struct device *dev, void *data)
@@ -433,6 +450,12 @@
  */
 int pcie_port_device_resume(struct device *dev)
 {
+#ifdef CONFIG_ARCH_GEN3
+	struct pci_dev *pdev = to_pci_dev(dev);
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+	pcie_portdrv_restore_config(pdev);
+#endif
 	return device_for_each_child(dev, NULL, resume_iter);
 }
 #endif /* PM */