dma: Introduce dma_get_cfg() interface

[platform/kernel/u-boot.git] / include / dma.h

diff --git a/include/dma.h b/include/dma.h
index d1c3d0d..6c55aa3 100644 (file)
--- a/include/dma.h
+++ b/include/dma.h
@@ -290,6 +290,18 @@ int dma_receive(struct dma *dma, void **dst, void *metadata);
  * @return zero on success, or -ve error code.
  */
 int dma_send(struct dma *dma, void *src, size_t len, void *metadata);
+
+/**
+ * dma_get_cfg() - Get DMA channel configuration for client's use
+ *
+ * @dma:      The DMA Channel to manipulate
+ * @cfg_id:   DMA provider specific ID to identify what
+ *            configuration data client needs
+ * @cfg_data: Pointer to store pointer to DMA driver specific
+ *            configuration data for the given cfg_id (output param)
+ * @return zero on success, or -ve error code.
+ */
+int dma_get_cfg(struct dma *dma, u32 cfg_id, void **cfg_data);
 #endif /* CONFIG_DMA_CHANNELS */
 
 /*