diff options
| author | Andy Green <andy.green@linaro.org> | 2016-08-29 19:30:47 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2016-08-31 06:39:32 +0200 |
| commit | 6c28a90fb30cd3fe504e7dafe0b60b733f240f8c (patch) | |
| tree | 7b75ab49d496446711a2beeb4a59b3cdab0b93c9 /drivers/dma | |
| parent | Linux 4.8-rc1 (diff) | |
| download | linux-6c28a90fb30cd3fe504e7dafe0b60b733f240f8c.tar.xz linux-6c28a90fb30cd3fe504e7dafe0b60b733f240f8c.zip | |
k3dma: Fix hisi burst clipping
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 <zhangfei.gao@linaro.org>
Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Andy Green <andy@warmcat.com>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Andy Green <andy.green@linaro.org>
[jstultz: Forward ported to mainline]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/k3dma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/k3dma.c b/drivers/dma/k3dma.c index 39de8980128c..3d514692bdc6 100644 --- a/drivers/dma/k3dma.c +++ b/drivers/dma/k3dma.c @@ -551,7 +551,7 @@ 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); |