5 files changed, 35 insertions, 0 deletions

diff --git a/include/linux/device.h b/include/linux/device.h
index a62799f2ab00..b30527db3ac0 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -472,6 +472,23 @@ static inline int device_is_registered(struct device *dev)
         return dev->kobj.state_in_sysfs;
 }
 
+static inline void device_enable_async_suspend(struct device *dev)
+{
+        if (dev->power.status == DPM_ON)
+                dev->power.async_suspend = true;
+}
+
+static inline void device_disable_async_suspend(struct device *dev)
+{
+        if (dev->power.status == DPM_ON)
+                dev->power.async_suspend = false;
+}
+
+static inline bool device_async_suspend_enabled(struct device *dev)
+{
+        return !!dev->power.async_suspend;
+}
+
 void driver_init(void);
 
 /*
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 198b8f9fe05e..e80df06ad22a 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -26,6 +26,7 @@
 #include <linux/spinlock.h>
 #include <linux/wait.h>
 #include <linux/timer.h>
+#include <linux/completion.h>
 
 /*
  * Callbacks for platform drivers to implement.
@@ -412,9 +413,11 @@ struct dev_pm_info {
         pm_message_t            power_state;
         unsigned int            can_wakeup:1;
         unsigned int            should_wakeup:1;
+        unsigned                async_suspend:1;
         enum dpm_state          status;         /* Owned by the PM core */
 #ifdef CONFIG_PM_SLEEP
         struct list_head        entry;
+        struct completion       completion;
 #endif
 #ifdef CONFIG_PM_RUNTIME
         struct timer_list       suspend_timer;
@@ -430,6 +433,7 @@ struct dev_pm_info {
         unsigned int            request_pending:1;
         unsigned int            deferred_resume:1;
         unsigned int            run_wake:1;
+        unsigned int            runtime_auto:1;
         enum rpm_request        request;
         enum rpm_status         runtime_status;
         int                     runtime_error;
@@ -508,6 +512,7 @@ extern void __suspend_report_result(const char *function, void *fn, int ret);
                 __suspend_report_result(__func__, fn, ret);             \
         } while (0)
 
+extern void device_pm_wait_for_dev(struct device *sub, struct device *dev);
 #else /* !CONFIG_PM_SLEEP */
 
 #define device_pm_lock() do {} while (0)
@@ -520,6 +525,7 @@ static inline int dpm_suspend_start(pm_message_t state)
 
 #define suspend_report_result(fn, ret)          do {} while (0)
 
+static inline void device_pm_wait_for_dev(struct device *a, struct device *b) {}
 #endif /* !CONFIG_PM_SLEEP */
 
 /* How to reorder dpm_list after device_move() */
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 370ce0a6fe4a..7d773aac5314 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -28,6 +28,8 @@ extern int __pm_runtime_set_status(struct device *dev, unsigned int status);
 extern int pm_runtime_barrier(struct device *dev);
 extern void pm_runtime_enable(struct device *dev);
 extern void __pm_runtime_disable(struct device *dev, bool check_resume);
+extern void pm_runtime_allow(struct device *dev);
+extern void pm_runtime_forbid(struct device *dev);
 
 static inline bool pm_children_suspended(struct device *dev)
 {
@@ -78,6 +80,8 @@ static inline int __pm_runtime_set_status(struct device *dev,
 static inline int pm_runtime_barrier(struct device *dev) { return 0; }
 static inline void pm_runtime_enable(struct device *dev) {}
 static inline void __pm_runtime_disable(struct device *dev, bool c) {}
+static inline void pm_runtime_allow(struct device *dev) {}
+static inline void pm_runtime_forbid(struct device *dev) {}
 
 static inline bool pm_children_suspended(struct device *dev) { return false; }
 static inline void pm_suspend_ignore_children(struct device *dev, bool en) {}
diff --git a/include/linux/resume-trace.h b/include/linux/resume-trace.h
index c9ba2fdf807d..bc8c3881c729 100644
--- a/include/linux/resume-trace.h
+++ b/include/linux/resume-trace.h
@@ -6,6 +6,11 @@
 
 extern int pm_trace_enabled;
 
+static inline int pm_trace_is_enabled(void)
+{
+       return pm_trace_enabled;
+}
+
 struct device;
 extern void set_trace_device(struct device *);
 extern void generate_resume_trace(const void *tracedata, unsigned int user);
@@ -17,6 +22,8 @@ extern void generate_resume_trace(const void *tracedata, unsigned int user);
 
 #else
 
+static inline int pm_trace_is_enabled(void) { return 0; }
+
 #define TRACE_DEVICE(dev) do { } while (0)
 #define TRACE_RESUME(dev) do { } while (0)
 
diff --git a/include/linux/usb.h b/include/linux/usb.h
index d7ace1b80f09..332eaea61021 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -339,6 +339,7 @@ struct usb_bus {
 
         struct usb_devmap devmap;       /* device address allocation map */
         struct usb_device *root_hub;    /* Root hub */
+        struct usb_bus *hs_companion;   /* Companion EHCI bus, if any */
         struct list_head bus_list;      /* list of busses */
 
         int bandwidth_allocated;        /* on this bus: how much of the time