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Diffstat (limited to 'target/linux/layerscape/patches-5.4/813-pm-0004-PM-wakeup-Add-routine-to-help-fetch-wakeup-source-ob.patch')
-rw-r--r--target/linux/layerscape/patches-5.4/813-pm-0004-PM-wakeup-Add-routine-to-help-fetch-wakeup-source-ob.patch108
1 files changed, 0 insertions, 108 deletions
diff --git a/target/linux/layerscape/patches-5.4/813-pm-0004-PM-wakeup-Add-routine-to-help-fetch-wakeup-source-ob.patch b/target/linux/layerscape/patches-5.4/813-pm-0004-PM-wakeup-Add-routine-to-help-fetch-wakeup-source-ob.patch
deleted file mode 100644
index 091588b1d7..0000000000
--- a/target/linux/layerscape/patches-5.4/813-pm-0004-PM-wakeup-Add-routine-to-help-fetch-wakeup-source-ob.patch
+++ /dev/null
@@ -1,108 +0,0 @@
-From a9647655a2240148b7b6d29227dc76e9d6f12766 Mon Sep 17 00:00:00 2001
-From: Ran Wang <ran.wang_1@nxp.com>
-Date: Thu, 24 Oct 2019 16:36:14 +0800
-Subject: [PATCH] PM: wakeup: Add routine to help fetch wakeup source object.
-
-Some user might want to go through all registered wakeup sources
-and doing things accordingly. For example, SoC PM driver might need to
-do HW programming to prevent powering down specific IP which wakeup
-source depending on. So add this API to help walk through all registered
-wakeup source objects on that list and return them one by one.
-
-Signed-off-by: Ran Wang <ran.wang_1@nxp.com>
-Tested-by: Leonard Crestez <leonard.crestez@nxp.com>
-Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
-Acked-by: Anson Huang <Anson.Huang@nxp.com>
----
- drivers/base/power/wakeup.c | 54 +++++++++++++++++++++++++++++++++++++++++++++
- include/linux/pm_wakeup.h | 9 ++++++++
- 2 files changed, 63 insertions(+)
-
---- a/drivers/base/power/wakeup.c
-+++ b/drivers/base/power/wakeup.c
-@@ -250,6 +250,60 @@ void wakeup_source_unregister(struct wak
- EXPORT_SYMBOL_GPL(wakeup_source_unregister);
-
- /**
-+ * wakeup_sources_read_lock - Lock wakeup source list for read.
-+ *
-+ * Returns an index of srcu lock for struct wakeup_srcu.
-+ * This index must be passed to the matching wakeup_sources_read_unlock().
-+ */
-+int wakeup_sources_read_lock(void)
-+{
-+ return srcu_read_lock(&wakeup_srcu);
-+}
-+EXPORT_SYMBOL_GPL(wakeup_sources_read_lock);
-+
-+/**
-+ * wakeup_sources_read_unlock - Unlock wakeup source list.
-+ * @idx: return value from corresponding wakeup_sources_read_lock()
-+ */
-+void wakeup_sources_read_unlock(int idx)
-+{
-+ srcu_read_unlock(&wakeup_srcu, idx);
-+}
-+EXPORT_SYMBOL_GPL(wakeup_sources_read_unlock);
-+
-+/**
-+ * wakeup_sources_walk_start - Begin a walk on wakeup source list
-+ *
-+ * Returns first object of the list of wakeup sources.
-+ *
-+ * Note that to be safe, wakeup sources list needs to be locked by calling
-+ * wakeup_source_read_lock() for this.
-+ */
-+struct wakeup_source *wakeup_sources_walk_start(void)
-+{
-+ struct list_head *ws_head = &wakeup_sources;
-+
-+ return list_entry_rcu(ws_head->next, struct wakeup_source, entry);
-+}
-+EXPORT_SYMBOL_GPL(wakeup_sources_walk_start);
-+
-+/**
-+ * wakeup_sources_walk_next - Get next wakeup source from the list
-+ * @ws: Previous wakeup source object
-+ *
-+ * Note that to be safe, wakeup sources list needs to be locked by calling
-+ * wakeup_source_read_lock() for this.
-+ */
-+struct wakeup_source *wakeup_sources_walk_next(struct wakeup_source *ws)
-+{
-+ struct list_head *ws_head = &wakeup_sources;
-+
-+ return list_next_or_null_rcu(ws_head, &ws->entry,
-+ struct wakeup_source, entry);
-+}
-+EXPORT_SYMBOL_GPL(wakeup_sources_walk_next);
-+
-+/**
- * device_wakeup_attach - Attach a wakeup source object to a device object.
- * @dev: Device to handle.
- * @ws: Wakeup source object to attach to @dev.
---- a/include/linux/pm_wakeup.h
-+++ b/include/linux/pm_wakeup.h
-@@ -63,6 +63,11 @@ struct wakeup_source {
- bool autosleep_enabled:1;
- };
-
-+#define for_each_wakeup_source(ws) \
-+ for ((ws) = wakeup_sources_walk_start(); \
-+ (ws); \
-+ (ws) = wakeup_sources_walk_next((ws)))
-+
- #ifdef CONFIG_PM_SLEEP
-
- /*
-@@ -92,6 +97,10 @@ extern void wakeup_source_remove(struct
- extern struct wakeup_source *wakeup_source_register(struct device *dev,
- const char *name);
- extern void wakeup_source_unregister(struct wakeup_source *ws);
-+extern int wakeup_sources_read_lock(void);
-+extern void wakeup_sources_read_unlock(int idx);
-+extern struct wakeup_source *wakeup_sources_walk_start(void);
-+extern struct wakeup_source *wakeup_sources_walk_next(struct wakeup_source *ws);
- extern int device_wakeup_enable(struct device *dev);
- extern int device_wakeup_disable(struct device *dev);
- extern void device_set_wakeup_capable(struct device *dev, bool capable);