1 files changed, 166 insertions, 19 deletions

diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 6e81888c6222..878cf84baeb1 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -12,18 +12,24 @@
 #include <linux/device.h>
 #include <linux/pm.h>
 
+#include <linux/jiffies.h>
+
+/* Runtime PM flag argument bits */
+#define RPM_ASYNC               0x01    /* Request is asynchronous */
+#define RPM_NOWAIT              0x02    /* Don't wait for concurrent
+                                            state change */
+#define RPM_GET_PUT             0x04    /* Increment/decrement the
+                                            usage_count */
+#define RPM_AUTO                0x08    /* Use autosuspend_delay */
+
 #ifdef CONFIG_PM_RUNTIME
 
 extern struct workqueue_struct *pm_wq;
 
-extern int pm_runtime_idle(struct device *dev);
-extern int pm_runtime_suspend(struct device *dev);
-extern int pm_runtime_resume(struct device *dev);
-extern int pm_request_idle(struct device *dev);
+extern int __pm_runtime_idle(struct device *dev, int rpmflags);
+extern int __pm_runtime_suspend(struct device *dev, int rpmflags);
+extern int __pm_runtime_resume(struct device *dev, int rpmflags);
 extern int pm_schedule_suspend(struct device *dev, unsigned int delay);
-extern int pm_request_resume(struct device *dev);
-extern int __pm_runtime_get(struct device *dev, bool sync);
-extern int __pm_runtime_put(struct device *dev, bool sync);
 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);
@@ -33,6 +39,11 @@ extern void pm_runtime_forbid(struct device *dev);
 extern int pm_generic_runtime_idle(struct device *dev);
 extern int pm_generic_runtime_suspend(struct device *dev);
 extern int pm_generic_runtime_resume(struct device *dev);
+extern void pm_runtime_no_callbacks(struct device *dev);
+extern void pm_runtime_irq_safe(struct device *dev);
+extern void __pm_runtime_use_autosuspend(struct device *dev, bool use);
+extern void pm_runtime_set_autosuspend_delay(struct device *dev, int delay);
+extern unsigned long pm_runtime_autosuspend_expiration(struct device *dev);
 
 static inline bool pm_children_suspended(struct device *dev)
 {
@@ -67,22 +78,43 @@ static inline void device_set_run_wake(struct device *dev, bool enable)
 
 static inline bool pm_runtime_suspended(struct device *dev)
 {
-        return dev->power.runtime_status == RPM_SUSPENDED;
+        return dev->power.runtime_status == RPM_SUSPENDED
+                && !dev->power.disable_depth;
+}
+
+static inline bool pm_runtime_enabled(struct device *dev)
+{
+        return !dev->power.disable_depth;
+}
+
+static inline bool pm_runtime_callbacks_present(struct device *dev)
+{
+        return !dev->power.no_callbacks;
+}
+
+static inline void pm_runtime_mark_last_busy(struct device *dev)
+{
+        ACCESS_ONCE(dev->power.last_busy) = jiffies;
 }
 
 #else /* !CONFIG_PM_RUNTIME */
 
-static inline int pm_runtime_idle(struct device *dev) { return -ENOSYS; }
-static inline int pm_runtime_suspend(struct device *dev) { return -ENOSYS; }
-static inline int pm_runtime_resume(struct device *dev) { return 0; }
-static inline int pm_request_idle(struct device *dev) { return -ENOSYS; }
+static inline int __pm_runtime_idle(struct device *dev, int rpmflags)
+{
+        return -ENOSYS;
+}
+static inline int __pm_runtime_suspend(struct device *dev, int rpmflags)
+{
+        return -ENOSYS;
+}
+static inline int __pm_runtime_resume(struct device *dev, int rpmflags)
+{
+        return 1;
+}
 static inline int pm_schedule_suspend(struct device *dev, unsigned int delay)
 {
         return -ENOSYS;
 }
-static inline int pm_request_resume(struct device *dev) { return 0; }
-static inline int __pm_runtime_get(struct device *dev, bool sync) { return 1; }
-static inline int __pm_runtime_put(struct device *dev, bool sync) { return 0; }
 static inline int __pm_runtime_set_status(struct device *dev,
                                             unsigned int status) { return 0; }
 static inline int pm_runtime_barrier(struct device *dev) { return 0; }
@@ -98,31 +130,94 @@ static inline void pm_runtime_put_noidle(struct device *dev) {}
 static inline bool device_run_wake(struct device *dev) { return false; }
 static inline void device_set_run_wake(struct device *dev, bool enable) {}
 static inline bool pm_runtime_suspended(struct device *dev) { return false; }
+static inline bool pm_runtime_enabled(struct device *dev) { return false; }
 
 static inline int pm_generic_runtime_idle(struct device *dev) { return 0; }
 static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; }
 static inline int pm_generic_runtime_resume(struct device *dev) { return 0; }
+static inline void pm_runtime_no_callbacks(struct device *dev) {}
+static inline void pm_runtime_irq_safe(struct device *dev) {}
+
+static inline bool pm_runtime_callbacks_present(struct device *dev) { return false; }
+static inline void pm_runtime_mark_last_busy(struct device *dev) {}
+static inline void __pm_runtime_use_autosuspend(struct device *dev,
+                                                bool use) {}
+static inline void pm_runtime_set_autosuspend_delay(struct device *dev,
+                                                int delay) {}
+static inline unsigned long pm_runtime_autosuspend_expiration(
+                                struct device *dev) { return 0; }
 
 #endif /* !CONFIG_PM_RUNTIME */
 
+static inline int pm_runtime_idle(struct device *dev)
+{
+        return __pm_runtime_idle(dev, 0);
+}
+
+static inline int pm_runtime_suspend(struct device *dev)
+{
+        return __pm_runtime_suspend(dev, 0);
+}
+
+static inline int pm_runtime_autosuspend(struct device *dev)
+{
+        return __pm_runtime_suspend(dev, RPM_AUTO);
+}
+
+static inline int pm_runtime_resume(struct device *dev)
+{
+        return __pm_runtime_resume(dev, 0);
+}
+
+static inline int pm_request_idle(struct device *dev)
+{
+        return __pm_runtime_idle(dev, RPM_ASYNC);
+}
+
+static inline int pm_request_resume(struct device *dev)
+{
+        return __pm_runtime_resume(dev, RPM_ASYNC);
+}
+
+static inline int pm_request_autosuspend(struct device *dev)
+{
+        return __pm_runtime_suspend(dev, RPM_ASYNC | RPM_AUTO);
+}
+
 static inline int pm_runtime_get(struct device *dev)
 {
-        return __pm_runtime_get(dev, false);
+        return __pm_runtime_resume(dev, RPM_GET_PUT | RPM_ASYNC);
 }
 
 static inline int pm_runtime_get_sync(struct device *dev)
 {
-        return __pm_runtime_get(dev, true);
+        return __pm_runtime_resume(dev, RPM_GET_PUT);
 }
 
 static inline int pm_runtime_put(struct device *dev)
 {
-        return __pm_runtime_put(dev, false);
+        return __pm_runtime_idle(dev, RPM_GET_PUT | RPM_ASYNC);
+}
+
+static inline int pm_runtime_put_autosuspend(struct device *dev)
+{
+        return __pm_runtime_suspend(dev,
+            RPM_GET_PUT | RPM_ASYNC | RPM_AUTO);
 }
 
 static inline int pm_runtime_put_sync(struct device *dev)
 {
-        return __pm_runtime_put(dev, true);
+        return __pm_runtime_idle(dev, RPM_GET_PUT);
+}
+
+static inline int pm_runtime_put_sync_suspend(struct device *dev)
+{
+        return __pm_runtime_suspend(dev, RPM_GET_PUT);
+}
+
+static inline int pm_runtime_put_sync_autosuspend(struct device *dev)
+{
+        return __pm_runtime_suspend(dev, RPM_GET_PUT | RPM_AUTO);
 }
 
 static inline int pm_runtime_set_active(struct device *dev)
@@ -140,4 +235,56 @@ static inline void pm_runtime_disable(struct device *dev)
         __pm_runtime_disable(dev, true);
 }
 
+static inline void pm_runtime_use_autosuspend(struct device *dev)
+{
+        __pm_runtime_use_autosuspend(dev, true);
+}
+
+static inline void pm_runtime_dont_use_autosuspend(struct device *dev)
+{
+        __pm_runtime_use_autosuspend(dev, false);
+}
+
+struct pm_clk_notifier_block {
+        struct notifier_block nb;
+        struct dev_power_domain *pwr_domain;
+        char *con_ids[];
+};
+
+#ifdef CONFIG_PM_RUNTIME_CLK
+extern int pm_runtime_clk_init(struct device *dev);
+extern void pm_runtime_clk_destroy(struct device *dev);
+extern int pm_runtime_clk_add(struct device *dev, const char *con_id);
+extern void pm_runtime_clk_remove(struct device *dev, const char *con_id);
+extern int pm_runtime_clk_suspend(struct device *dev);
+extern int pm_runtime_clk_resume(struct device *dev);
+#else
+static inline int pm_runtime_clk_init(struct device *dev)
+{
+        return -EINVAL;
+}
+static inline void pm_runtime_clk_destroy(struct device *dev)
+{
+}
+static inline int pm_runtime_clk_add(struct device *dev, const char *con_id)
+{
+        return -EINVAL;
+}
+static inline void pm_runtime_clk_remove(struct device *dev, const char *con_id)
+{
+}
+#define pm_runtime_clock_suspend        NULL
+#define pm_runtime_clock_resume         NULL
+#endif
+
+#ifdef CONFIG_HAVE_CLK
+extern void pm_runtime_clk_add_notifier(struct bus_type *bus,
+                                        struct pm_clk_notifier_block *clknb);
+#else
+static inline void pm_runtime_clk_add_notifier(struct bus_type *bus,
+                                        struct pm_clk_notifier_block *clknb)
+{
+}
+#endif
+
 #endif