--- zzzz-none-000/linux-4.4.60/drivers/usb/core/usb.h	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-1750e-727/linux-4.4.60/drivers/usb/core/usb.h	2021-02-04 17:41:59.000000000 +0000
@@ -1,6 +1,23 @@
 #include <linux/pm.h>
 #include <linux/acpi.h>
 
+#if defined CONFIG_AVM_USB_PM && !defined (CONFIG_PM)
+#error CONFIG_AVM_USB_PM needs CONFIG_PM
+#endif
+
+#if defined (CONFIG_AVM_USB_PM)
+#define AVM_USB_PM_MAX_BLACKLIST_SIZE 8
+#define AVM_USB_PM_SPINDOWN_DELAY (630*1000) // 10.5 min in ms
+#define AVM_USB_PM_FLASH_DELAY    (20*1000)  // 20 s in ms
+#define AVM_USB_PM_MIN_DELAY      2000       // 2 s in ms
+
+struct avm_usb_pm_blacklist {
+	unsigned int idVendor;
+	unsigned int idProduct;
+	unsigned int bcdDevice;
+};
+#endif
+
 struct usb_hub_descriptor;
 struct usb_dev_state;
 
@@ -86,6 +103,45 @@
 extern int usb_runtime_idle(struct device *dev);
 extern int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable);
 
+#if defined (CONFIG_AVM_USB_PM)
+extern int suspend_error_count;
+
+extern int avm_usb_pm_is_blacklisted(struct usb_device *udev);
+extern void avm_usb_pm_add_to_blacklist(struct usb_device *udev);
+
+static inline void avm_usb_pm_min_delay(struct usb_device *udev, unsigned msecs)
+{
+	if ((udev->dev.power.autosuspend_delay > 0) && (udev->dev.power.autosuspend_delay < msecs)) {
+		pm_runtime_set_autosuspend_delay(&udev->dev, msecs);
+		printk(KERN_INFO "set suspend delay %u ms\n", msecs);
+	}
+}
+
+static inline void avm_usb_pm_max_delay(struct usb_device *udev, unsigned msecs)
+{
+	if (udev->dev.power.autosuspend_delay > msecs) {
+		pm_runtime_set_autosuspend_delay(&udev->dev, msecs);
+		printk(KERN_INFO "set suspend delay %u ms\n", msecs);
+	}
+}
+
+static inline unsigned int avm_usb_pm_get_idle_ms(struct usb_device *udev)
+{
+	if (atomic_read(&udev->dev.power.usage_count) > 0) {
+		return 0;
+	}
+
+	return jiffies_to_msecs(jiffies - ACCESS_ONCE(udev->dev.power.last_busy));
+}
+
+#else
+
+#define avm_usb_pm_min_delay(udev_p,delay) do {} while (0)
+#define avm_usb_pm_max_delay(udev_p,delay) do {} while (0)
+#define avm_usb_pm_get_idle_ms(udev_p) (0)
+
+#endif
+
 #else
 
 static inline int usb_port_suspend(struct usb_device *udev, pm_message_t msg)