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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>
pull/10/head
Shengjiu Wang 2018-01-23 13:27:39 +08:00 committed by Jason Liu
parent 044451aac7
commit 9749259c66
1 changed files with 4 additions and 0 deletions
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4
include/linux/dmaengine.h
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@ -345,6 +345,8 @@ enum dma_slave_buswidth {
* loops in this area in order to transfer the data.
* @dst_port_window_size: same as src_port_window_size but for the destination
* port.
* @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.
@ -374,6 +376,8 @@ struct dma_slave_config {
u32 dst_maxburst;
u32 src_port_window_size;
u32 dst_port_window_size;
u32 src_fifo_num;
u32 dst_fifo_num;
bool device_fc;
unsigned int slave_id;
};