Blackfin arch: Add DMA API to set curr descriptor address
This API is necessary for DMA descriptor array mode.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
diff --git a/include/asm-blackfin/dma.h b/include/asm-blackfin/dma.h
index 4269082..b42a531e 100644
--- a/include/asm-blackfin/dma.h
+++ b/include/asm-blackfin/dma.h
@@ -152,6 +152,7 @@
/* functions to set register mode */
void set_dma_start_addr(unsigned int channel, unsigned long addr);
void set_dma_next_desc_addr(unsigned int channel, unsigned long addr);
+void set_dma_curr_desc_addr(unsigned int channel, unsigned long addr);
void set_dma_x_count(unsigned int channel, unsigned short x_count);
void set_dma_x_modify(unsigned int channel, short x_modify);
void set_dma_y_count(unsigned int channel, unsigned short y_count);