#ifndef _DMA_H_
#define _DMA_H_
+#include <linux/bitops.h>
#include <linux/errno.h>
#include <linux/types.h>
+struct udevice;
+
/*
* enum dma_direction - dma transfer direction indicator
* @DMA_MEM_TO_MEM: Memcpy mode
int dma_get_cfg(struct dma *dma, u32 cfg_id, void **cfg_data);
#endif /* CONFIG_DMA_CHANNELS */
+#if CONFIG_IS_ENABLED(DMA)
/*
* dma_get_device - get a DMA device which supports transfer
* type of transfer_type
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_ */