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path: root/drivers/dma/mv_xor.c
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Diffstat (limited to 'drivers/dma/mv_xor.c')
-rw-r--r--drivers/dma/mv_xor.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 766b68ed505c..394cbc5c93e3 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -191,12 +191,10 @@ static void mv_set_mode(struct mv_xor_chan *chan,
static void mv_chan_activate(struct mv_xor_chan *chan)
{
- u32 activation;
-
dev_dbg(mv_chan_to_devp(chan), " activate chan.\n");
- activation = readl_relaxed(XOR_ACTIVATION(chan));
- activation |= 0x1;
- writel_relaxed(activation, XOR_ACTIVATION(chan));
+
+ /* writel ensures all descriptors are flushed before activation */
+ writel(BIT(0), XOR_ACTIVATION(chan));
}
static char mv_chan_is_busy(struct mv_xor_chan *chan)