diff options
| -rw-r--r-- | drivers/dma/at_hdmac.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index 2740c78649db..128579d5e0d8 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -237,6 +237,8 @@ static void atc_dostart(struct at_dma_chan *atchan, struct at_desc *first) ATC_SPIP_BOUNDARY(first->boundary)); channel_writel(atchan, DPIP, ATC_DPIP_HOLE(first->dst_hole) | ATC_DPIP_BOUNDARY(first->boundary)); + /* Don't allow CPU to reorder channel enable. */ + wmb(); dma_writel(atdma, CHER, atchan->mask); vdbg_dump_regs(atchan); |