@@ -360,6 +360,25 @@ int of_reserved_mem_device_init_by_idx(struct device *dev,
}
EXPORT_SYMBOL_GPL(of_reserved_mem_device_init_by_idx);
+/**
+ * of_reserved_mem_device_init_by_name() - assign named reserved memory region
+ * to given device
+ * @dev: pointer to the device to configure
+ * @np: pointer to the device node with 'memory-region(s)' property
+ * @name: name of the selected memory region
+ *
+ * Returns: 0 on success or a negative error-code on failure.
+ */
+int of_reserved_mem_device_init_by_name(struct device *dev,
+ struct device_node *np,
+ const char *name)
+{
+ int idx = of_property_match_string(np, "memory-region-names", name);
+
+ return of_reserved_mem_device_init_by_idx(dev, np, idx);
+}
+EXPORT_SYMBOL_GPL(of_reserved_mem_device_init_by_name);
+
/**
* of_reserved_mem_device_release() - release reserved memory device structures
* @dev: Pointer to the device to deconfigure
@@ -33,6 +33,9 @@ typedef int (*reservedmem_of_init_fn)(struct reserved_mem *rmem);
int of_reserved_mem_device_init_by_idx(struct device *dev,
struct device_node *np, int idx);
+int of_reserved_mem_device_init_by_name(struct device *dev,
+ struct device_node *np,
+ const char *name);
void of_reserved_mem_device_release(struct device *dev);
void fdt_init_reserved_mem(void);
@@ -45,6 +48,14 @@ static inline int of_reserved_mem_device_init_by_idx(struct device *dev,
{
return -ENOSYS;
}
+
+static inline int of_reserved_mem_device_init_by_name(struct device *dev,
+ struct device_node *np,
+ const char *name)
+{
+ return -ENOSYS;
+}
+
static inline void of_reserved_mem_device_release(struct device *pdev) { }
static inline void fdt_init_reserved_mem(void) { }