[U-Boot] [PATCH 2/2] dma: Add stub of dma_memcpy and dma_get_device

[Vignesh Raghavendra]

Add stub for dma_memcpy() and dma_get_device when CONFIG_DMA is
disabled. This avoids ifdefs in driver code using DMA APIs

Signed-off-by: Vignesh Raghavendra <vigneshr at ti.com>
---
 include/dma.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/dma.h b/include/dma.h
index d1c3d0df7d91..32885571f7d4 100644
--- a/include/dma.h
+++ b/include/dma.h
@@ -292,6 +292,7 @@ int dma_receive(struct dma *dma, void **dst, void *metadata);
 int dma_send(struct dma *dma, void *src, size_t len, void *metadata);
 #endif /* CONFIG_DMA_CHANNELS */
 
+#if CONFIG_IS_ENABLED(DMA)
 /*
  * dma_get_device - get a DMA device which supports transfer
  * type of transfer_type
@@ -315,5 +316,15 @@ int dma_get_device(u32 transfer_type, struct udevice **devp);
 	     transferred and on failure return error code.
  */
 int dma_memcpy(void *dst, void *src, size_t len);
+#else
+static inline int dma_get_device(u32 transfer_type, struct udevice **devp)
+{
+	return -ENOSYS;
+}
 
+static inline int dma_memcpy(void *dst, void *src, size_t len)
+{
+	return -ENOSYS;
+}
+#endif /* CONFIG_DMA */
 #endif	/* _DMA_H_ */
-- 
2.24.0