X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=include%2Flinux%2Fof.h;h=49bd3a25e16cccad3a55355a3b30d02a2b5c24b7;hb=32502f2df358723c11c5c461155417edd76c5dec;hp=d3dea1d1e3a95ff27dc56c14cc2dcd89565be1a6;hpb=1bc03573e1c9024d4e4be97df4a1e0931edbae2c;p=mirror_ubuntu-bionic-kernel.git

diff --git a/include/linux/of.h b/include/linux/of.h
index d3dea1d1e3a9..49bd3a25e16c 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -142,11 +142,16 @@ extern struct device_node *of_aliases;
 extern struct device_node *of_stdout;
 extern raw_spinlock_t devtree_lock;
 
-/* flag descriptions (need to be visible even when !CONFIG_OF) */
-#define OF_DYNAMIC	1 /* node and properties were allocated via kmalloc */
-#define OF_DETACHED	2 /* node has been detached from the device tree */
-#define OF_POPULATED	3 /* device already created for the node */
-#define OF_POPULATED_BUS	4 /* of_platform_populate recursed to children of this node */
+/*
+ * struct device_node flag descriptions
+ * (need to be visible even when !CONFIG_OF)
+ */
+#define OF_DYNAMIC		1 /* (and properties) allocated via kmalloc */
+#define OF_DETACHED		2 /* detached from the device tree */
+#define OF_POPULATED		3 /* device already created */
+#define OF_POPULATED_BUS	4 /* platform bus created for children */
+#define OF_OVERLAY		5 /* allocated for an overlay */
+#define OF_OVERLAY_FREE_CSET	6 /* in overlay cset being freed */
 
 #define OF_BAD_ADDR	((u64)-1)
 
@@ -235,8 +240,8 @@ extern struct device_node *of_find_all_nodes(struct device_node *prev);
 static inline u64 of_read_number(const __be32 *cell, int size)
 {
 	u64 r = 0;
-	while (size--)
-		r = (r << 32) | be32_to_cpu(*(cell++));
+	for (; size--; cell++)
+		r = (r << 32) | be32_to_cpu(*cell);
 	return r;
 }
 
@@ -294,6 +299,8 @@ extern struct device_node *of_get_next_child(const struct device_node *node,
 extern struct device_node *of_get_next_available_child(
 	const struct device_node *node, struct device_node *prev);
 
+extern struct device_node *of_get_compatible_child(const struct device_node *parent,
+					const char *compatible);
 extern struct device_node *of_get_child_by_name(const struct device_node *node,
 					const char *name);
 
@@ -631,6 +638,12 @@ static inline bool of_have_populated_dt(void)
 	return false;
 }
 
+static inline struct device_node *of_get_compatible_child(const struct device_node *parent,
+					const char *compatible)
+{
+	return NULL;
+}
+
 static inline struct device_node *of_get_child_by_name(
 					const struct device_node *node,
 					const char *name)
@@ -927,6 +940,12 @@ static inline void of_property_clear_flag(struct property *p, unsigned long flag
 #define of_node_cmp(s1, s2)		strcasecmp((s1), (s2))
 #endif
 
+static inline int of_prop_val_eq(struct property *p1, struct property *p2)
+{
+	return p1->length == p2->length &&
+	       !memcmp(p1->value, p2->value, (size_t)p1->length);
+}
+
 #if defined(CONFIG_OF) && defined(CONFIG_NUMA)
 extern int of_node_to_nid(struct device_node *np);
 #else