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-rw-r--r--common/reset_source.c23
-rw-r--r--include/reset_source.h14
2 files changed, 34 insertions, 3 deletions
diff --git a/common/reset_source.c b/common/reset_source.c
index f9ee99b..b02a694 100644
--- a/common/reset_source.c
+++ b/common/reset_source.c
@@ -30,6 +30,7 @@ static const char * const reset_src_names[] = {
};
static enum reset_src_type reset_source;
+static unsigned int reset_source_priority;
enum reset_src_type reset_source_get(void)
{
@@ -37,9 +38,13 @@ enum reset_src_type reset_source_get(void)
}
EXPORT_SYMBOL(reset_source_get);
-void reset_source_set(enum reset_src_type st)
+void reset_source_set_priority(enum reset_src_type st, unsigned int priority)
{
+ if (priority <= reset_source_priority)
+ return;
+
reset_source = st;
+ reset_source_priority = priority;
}
EXPORT_SYMBOL(reset_source_set);
@@ -52,3 +57,19 @@ static int reset_source_init(void)
}
coredevice_initcall(reset_source_init);
+
+/**
+ * of_get_reset_source_priority() - get the desired reset source priority from
+ * device tree
+ * @node: The device_node to read the property from
+ *
+ * return: The priority
+ */
+unsigned int of_get_reset_source_priority(struct device_node *node)
+{
+ unsigned int priority = RESET_SOURCE_DEFAULT_PRIORITY;
+
+ of_property_read_u32(node, "reset-source-priority", &priority);
+
+ return priority;
+}
diff --git a/include/reset_source.h b/include/reset_source.h
index 367f93b..d484836 100644
--- a/include/reset_source.h
+++ b/include/reset_source.h
@@ -25,10 +25,11 @@ enum reset_src_type {
};
#ifdef CONFIG_RESET_SOURCE
-void reset_source_set(enum reset_src_type);
+void reset_source_set_priority(enum reset_src_type, unsigned int priority);
enum reset_src_type reset_source_get(void);
#else
-static inline void reset_source_set(enum reset_src_type unused)
+static inline void reset_source_set_priority(enum reset_src_type type,
+ unsigned int priority)
{
}
@@ -38,4 +39,13 @@ static inline enum reset_src_type reset_source_get(void)
}
#endif
+#define RESET_SOURCE_DEFAULT_PRIORITY 100
+
+static inline void reset_source_set(enum reset_src_type type)
+{
+ reset_source_set_priority(type, RESET_SOURCE_DEFAULT_PRIORITY);
+}
+
+unsigned int of_get_reset_source_priority(struct device_node *node);
+
#endif /* __INCLUDE_RESET_SOURCE_H */