On 07/16/2016 10:13 AM, John Stultz wrote:
From: Andy Green <[email protected]>
Max burst len is a 4-bit field, but at the moment it's clipped with
a 5-bit constant... reduce it to that which can be expressed
Cc: Zhangfei Gao <[email protected]>
Cc: Jingoo Han <[email protected]>
Cc: Krzysztof Kozlowski <[email protected]>
Cc: Maxime Ripard <[email protected]>
Cc: Vinod Koul <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Liam Girdwood <[email protected]>
Cc: Mark Brown <[email protected]>
Cc: Jaroslav Kysela <[email protected]>
Cc: Takashi Iwai <[email protected]>
Cc: Wei Xu <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Andy Green <[email protected]>
Cc: Dave Long <[email protected]>
Cc: Guodong Xu <[email protected]>
Signed-off-by: Andy Green <[email protected]>
[jstultz: Forward ported to mainline]
Signed-off-by: John Stultz <[email protected]>
Acked-by: Zhangfei Gao <[email protected]>
---
drivers/dma/k3dma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/k3dma.c b/drivers/dma/k3dma.c
index 1ba2fd7..d01a11d 100644
--- a/drivers/dma/k3dma.c
+++ b/drivers/dma/k3dma.c
@@ -552,7 +552,7 @@ static int k3_dma_config(struct dma_chan *chan,
c->ccfg |= (val << 12) | (val << 16);
if ((maxburst == 0) || (maxburst > 16))
- val = 16;
+ val = 15;
else
val = maxburst - 1;
c->ccfg |= (val << 20) | (val << 24);
