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authorSascha Hauer <s.hauer@pengutronix.de>2011-07-06 11:18:33 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2011-07-07 09:55:50 +0200
commit6584cb8825e4c74915a5a13756b1902523391d78 (patch)
treee1abfedf3480f98df93fd22586344a9668a9afe5 /drivers/dma
parent9d73242458d9a2fe26e2e240488063d414eacb1c (diff)
downloadlinux-6584cb8825e4c74915a5a13756b1902523391d78.tar.bz2
ARM i.MX dma: Fix burstsize settings
dmaengine expects the maxburst parameter in words, not bytes. The imxdma driver and its users do this wrong. Fix this. As a side note the imx-pcm-dma-mx2 driver was 'fixed' to work with imx-dma. This broke the driver with imx-sdma support which correctly takes the maxburst parameter in words. This patch puts the sdma based sound back to work. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/imx-dma.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index e18eaabe92b9..d99f71c356b5 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -135,7 +135,8 @@ static int imxdma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
if (ret)
return ret;
- imx_dma_config_burstlen(imxdmac->imxdma_channel, imxdmac->watermark_level);
+ imx_dma_config_burstlen(imxdmac->imxdma_channel,
+ imxdmac->watermark_level * imxdmac->word_size);
return 0;
default: