MLK-16224-1: dmaengine: add src_fifo_num and dst_fifo_num in dma_slave_config

In order to support multi-fifo sdma script, the audio driver need to send
the fifo number to dma driver through dma_slave_config, so add src_fifo_num
and dst_fifo_num two new variable for struct dma_slave_config.

src_fifo_num: bit 0-7 is the fifo number, bit:8-11 is the fifo offset;
dst_fifo_num: same as src_fifo_num

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Robin Gong<yibin.gong@nxp.com>

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index cc535a4..eaf8e1d 100644 (file)
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -336,6 +336,8 @@ enum dma_slave_buswidth {
  * may or may not be applicable on memory sources.
  * @dst_maxburst: same as src_maxburst but for destination target
  * mutatis mutandis.
+ * @src_fifo_num: bit 0-7 is the fifo number, bit:8-11 is the fifo offset;
+ * @dst_fifo_num: same as src_fifo_num
  * @device_fc: Flow Controller Settings. Only valid for slave channels. Fill
  * with 'true' if peripheral should be flow controller. Direction will be
  * selected at Runtime.
@@ -363,6 +365,8 @@ struct dma_slave_config {
        enum dma_slave_buswidth dst_addr_width;
        u32 src_maxburst;
        u32 dst_maxburst;
+       u32 src_fifo_num;
+       u32 dst_fifo_num;
        bool device_fc;
        unsigned int slave_id;
 };