2 files changed, 34 insertions, 9 deletions

diff --git a/drivers/reset/core.c b/drivers/reset/core.c
index 217d2fa4fd95..baeaf82d40d9 100644
--- a/drivers/reset/core.c
+++ b/drivers/reset/core.c
@@ -126,15 +126,16 @@ int reset_control_deassert(struct reset_control *rstc)
 EXPORT_SYMBOL_GPL(reset_control_deassert);
 
 /**
- * reset_control_get - Lookup and obtain a reference to a reset controller.
- * @dev: device to be reset by the controller
+ * of_reset_control_get - Lookup and obtain a reference to a reset controller.
+ * @node: device to be reset by the controller
  * @id: reset line name
  *
  * Returns a struct reset_control or IS_ERR() condition containing errno.
  *
  * Use of id names is optional.
  */
-struct reset_control *reset_control_get(struct device *dev, const char *id)
+struct reset_control *of_reset_control_get(struct device_node *node,
+                                           const char *id)
 {
         struct reset_control *rstc = ERR_PTR(-EPROBE_DEFER);
         struct reset_controller_dev *r, *rcdev;
@@ -143,13 +144,10 @@ struct reset_control *reset_control_get(struct device *dev, const char *id)
         int rstc_id;
         int ret;
 
-        if (!dev)
-                return ERR_PTR(-EINVAL);
-
         if (id)
-                index = of_property_match_string(dev->of_node,
+                index = of_property_match_string(node,
                                                  "reset-names", id);
-        ret = of_parse_phandle_with_args(dev->of_node, "resets", "#reset-cells",
+        ret = of_parse_phandle_with_args(node, "resets", "#reset-cells",
                                          index, &args);
         if (ret)
                 return ERR_PTR(ret);
@@ -184,12 +182,35 @@ struct reset_control *reset_control_get(struct device *dev, const char *id)
                 return ERR_PTR(-ENOMEM);
         }
 
-        rstc->dev = dev;
         rstc->rcdev = rcdev;
         rstc->id = rstc_id;
 
         return rstc;
 }
+EXPORT_SYMBOL_GPL(of_reset_control_get);
+
+/**
+ * reset_control_get - Lookup and obtain a reference to a reset controller.
+ * @dev: device to be reset by the controller
+ * @id: reset line name
+ *
+ * Returns a struct reset_control or IS_ERR() condition containing errno.
+ *
+ * Use of id names is optional.
+ */
+struct reset_control *reset_control_get(struct device *dev, const char *id)
+{
+        struct reset_control *rstc;
+
+        if (!dev)
+                return ERR_PTR(-EINVAL);
+
+        rstc = of_reset_control_get(dev->of_node, id);
+        if (!IS_ERR(rstc))
+                rstc->dev = dev;
+
+        return rstc;
+}
 EXPORT_SYMBOL_GPL(reset_control_get);
 
 /**
diff --git a/include/linux/reset.h b/include/linux/reset.h
index 6082247feab1..a398025d1138 100644
--- a/include/linux/reset.h
+++ b/include/linux/reset.h
@@ -1,6 +1,8 @@
 #ifndef _LINUX_RESET_H_
 #define _LINUX_RESET_H_
 
+#include <linux/of.h>
+
 struct device;
 struct reset_control;
 
@@ -8,6 +10,8 @@ int reset_control_reset(struct reset_control *rstc);
 int reset_control_assert(struct reset_control *rstc);
 int reset_control_deassert(struct reset_control *rstc);
 
+struct reset_control *of_reset_control_get(struct device_node *node,
+                                           const char *id);
 struct reset_control *reset_control_get(struct device *dev, const char *id);
 void reset_control_put(struct reset_control *rstc);
 struct reset_control *devm_reset_control_get(struct device *dev, const char *id);