of: dma- fix build break for !CONFIG_OF

Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>

1 files changed, 27 insertions, 0 deletions

diff --git a/include/linux/of_dma.h b/include/linux/of_dma.h
index 337823dc6b90..67158ddd1f3e 100644
--- a/include/linux/of_dma.h
+++ b/include/linux/of_dma.h
@@ -32,6 +32,7 @@ struct of_dma_filter_info {
         dma_filter_fn   filter_fn;
 };
 
+#ifdef CONFIG_OF
 extern int of_dma_controller_register(struct device_node *np,
                 struct dma_chan *(*of_dma_xlate)
                 (struct of_phandle_args *, struct of_dma *),
@@ -41,5 +42,31 @@ extern struct dma_chan *of_dma_request_slave_channel(struct device_node *np,
                                                      char *name);
 extern struct dma_chan *of_dma_simple_xlate(struct of_phandle_args *dma_spec,
                 struct of_dma *ofdma);
+#else
+static int of_dma_controller_register(struct device_node *np,
+                struct dma_chan *(*of_dma_xlate)
+                (struct of_phandle_args *, struct of_dma *),
+                void *data)
+{
+        return -ENODEV;
+}
+
+static void of_dma_controller_free(struct device_node *np)
+{
+}
+
+static struct dma_chan *of_dma_request_slave_channel(struct device_node *np,
+                                                     char *name)
+{
+        return NULL;
+}
+
+static struct dma_chan *of_dma_simple_xlate(struct of_phandle_args *dma_spec,
+                struct of_dma *ofdma)
+{
+        return NULL;
+}
+
+#endif
 
 #endif /* __LINUX_OF_DMA_H */