lkml.org 
[lkml]   [2016]   [Nov]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 6/6] Relax write accesses
Date
---
drivers/dma/tango-dma.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/tango-dma.c b/drivers/dma/tango-dma.c
index 24e124942a2f..7049b7c3c0db 100644
--- a/drivers/dma/tango-dma.c
+++ b/drivers/dma/tango-dma.c
@@ -153,11 +153,9 @@ static void tangox_dma_pchan_detach(struct tangox_dma_pchan *pchan)
static int tangox_dma_issue_single(struct tangox_dma_pchan *pchan,
struct tangox_dma_sg *sg, int flags)
{
- writel(sg->addr, pchan->base + DMA_ADDR);
- writel(sg->len, pchan->base + DMA_COUNT);
- wmb();
- writel(DMA_MODE_SINGLE << 1 | flags, pchan->base + DMA_CMD);
- wmb();
+ writel_relaxed(sg->addr, pchan->base + DMA_ADDR);
+ writel_relaxed(sg->len, pchan->base + DMA_COUNT);
+ writel_relaxed(DMA_MODE_SINGLE << 1 | flags, pchan->base + DMA_CMD);

return sg->len;
}
--
2.9.0
\
 
 \ /
  Last update: 2016-11-23 17:57    [W:0.072 / U:0.232 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site