--- zzzz-none-000/linux-3.10.107/drivers/ssb/pcihost_wrapper.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/ssb/pcihost_wrapper.c	2021-02-04 17:41:59.000000000 +0000
@@ -11,15 +11,17 @@
  * Licensed under the GNU/GPL. See COPYING for details.
  */
 
+#include <linux/pm.h>
 #include <linux/pci.h>
 #include <linux/export.h>
 #include <linux/slab.h>
 #include <linux/ssb/ssb.h>
 
 
-#ifdef CONFIG_PM
-static int ssb_pcihost_suspend(struct pci_dev *dev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int ssb_pcihost_suspend(struct device *d)
 {
+	struct pci_dev *dev = to_pci_dev(d);
 	struct ssb_bus *ssb = pci_get_drvdata(dev);
 	int err;
 
@@ -28,17 +30,23 @@
 		return err;
 	pci_save_state(dev);
 	pci_disable_device(dev);
-	pci_set_power_state(dev, pci_choose_state(dev, state));
+
+	/* if there is a wakeup enabled child device on ssb bus,
+	   enable pci wakeup posibility. */
+	device_set_wakeup_enable(d, d->power.wakeup_path);
+
+	pci_prepare_to_sleep(dev);
 
 	return 0;
 }
 
-static int ssb_pcihost_resume(struct pci_dev *dev)
+static int ssb_pcihost_resume(struct device *d)
 {
+	struct pci_dev *dev = to_pci_dev(d);
 	struct ssb_bus *ssb = pci_get_drvdata(dev);
 	int err;
 
-	pci_set_power_state(dev, 0);
+	pci_back_from_sleep(dev);
 	err = pci_enable_device(dev);
 	if (err)
 		return err;
@@ -49,10 +57,12 @@
 
 	return 0;
 }
-#else /* CONFIG_PM */
-# define ssb_pcihost_suspend	NULL
-# define ssb_pcihost_resume	NULL
-#endif /* CONFIG_PM */
+
+static const struct dev_pm_ops ssb_pcihost_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(ssb_pcihost_suspend, ssb_pcihost_resume)
+};
+
+#endif /* CONFIG_PM_SLEEP */
 
 static int ssb_pcihost_probe(struct pci_dev *dev,
 			     const struct pci_device_id *id)
@@ -115,8 +125,9 @@
 {
 	driver->probe = ssb_pcihost_probe;
 	driver->remove = ssb_pcihost_remove;
-	driver->suspend = ssb_pcihost_suspend;
-	driver->resume = ssb_pcihost_resume;
+#ifdef CONFIG_PM_SLEEP
+	driver->driver.pm = &ssb_pcihost_pm_ops;
+#endif
 
 	return pci_register_driver(driver);
 }