of/platform: add function to populate default bus

When a default bus like the simple-bus should be used someone had to
call of_platform_populate() with the default match table. This match
table was not exported, so it is impossible for code build as a module
to use this. Instead of exporting of_default_bus_match_table, add a new
function which uses this default match table and populates the bus.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Rob Herring <robh@kernel.org>

2 files changed, 18 insertions, 0 deletions

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index ddf8e42c9367..918f01f26d4b 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -456,6 +456,15 @@ int of_platform_populate(struct device_node *root,
 }
 EXPORT_SYMBOL_GPL(of_platform_populate);
 
+int of_platform_default_populate(struct device_node *root,
+                                 const struct of_dev_auxdata *lookup,
+                                 struct device *parent)
+{
+        return of_platform_populate(root, of_default_bus_match_table, lookup,
+                                    parent);
+}
+EXPORT_SYMBOL_GPL(of_platform_default_populate);
+
 static int of_platform_device_destroy(struct device *dev, void *data)
 {
         /* Do not touch devices not populated from the device tree */
diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h
index 611a691145c4..956a1006aefc 100644
--- a/include/linux/of_platform.h
+++ b/include/linux/of_platform.h
@@ -72,6 +72,9 @@ extern int of_platform_populate(struct device_node *root,
                                 const struct of_device_id *matches,
                                 const struct of_dev_auxdata *lookup,
                                 struct device *parent);
+extern int of_platform_default_populate(struct device_node *root,
+                                        const struct of_dev_auxdata *lookup,
+                                        struct device *parent);
 extern void of_platform_depopulate(struct device *parent);
 #else
 static inline int of_platform_populate(struct device_node *root,
@@ -81,6 +84,12 @@ static inline int of_platform_populate(struct device_node *root,
 {
         return -ENODEV;
 }
+static inline int of_platform_default_populate(struct device_node *root,
+                                               const struct of_dev_auxdata *lookup,
+                                               struct device *parent)
+{
+        return -ENODEV;
+}
 static inline void of_platform_depopulate(struct device *parent) { }
 #endif