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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 /sound
parent9d73242458d9a2fe26e2e240488063d414eacb1c (diff)
downloadop-kernel-dev-6584cb8825e4c74915a5a13756b1902523391d78.zip
op-kernel-dev-6584cb8825e4c74915a5a13756b1902523391d78.tar.gz
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 'sound')
-rw-r--r--sound/soc/imx/imx-pcm-dma-mx2.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/sound/soc/imx/imx-pcm-dma-mx2.c b/sound/soc/imx/imx-pcm-dma-mx2.c
index aab7765..b2ed764 100644
--- a/sound/soc/imx/imx-pcm-dma-mx2.c
+++ b/sound/soc/imx/imx-pcm-dma-mx2.c
@@ -110,12 +110,12 @@ static int imx_ssi_dma_alloc(struct snd_pcm_substream *substream,
slave_config.direction = DMA_TO_DEVICE;
slave_config.dst_addr = dma_params->dma_addr;
slave_config.dst_addr_width = buswidth;
- slave_config.dst_maxburst = dma_params->burstsize * buswidth;
+ slave_config.dst_maxburst = dma_params->burstsize;
} else {
slave_config.direction = DMA_FROM_DEVICE;
slave_config.src_addr = dma_params->dma_addr;
slave_config.src_addr_width = buswidth;
- slave_config.src_maxburst = dma_params->burstsize * buswidth;
+ slave_config.src_maxburst = dma_params->burstsize;
}
ret = dmaengine_slave_config(iprtd->dma_chan, &slave_config);
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