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ARM i.MX dma: Fix burstsize settings

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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 <[email protected]>
This commit is contained in:
Sascha Hauer 2011-07-06 11:18:33 +02:00
commit 6584cb8825
3 changed files with 8 additions and 7 deletions
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3
drivers/dma/imx-dma.c
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@ -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: