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authorTakashi Iwai <tiwai@suse.de>2011-03-28 13:02:29 +0200
committerTakashi Iwai <tiwai@suse.de>2011-03-28 13:02:29 +0200
commitd454f39f3ff3ee5a818c271026081a48a537bd41 (patch)
treef25cac381d1d9fc123028c598b2ba6ba6bf711d3 /sound
parentMerge branch 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/asoc-2.6 into fix/asoc (diff)
parentASoC: imx: fix burstsize for DMA (diff)
downloadlinux-dev-d454f39f3ff3ee5a818c271026081a48a537bd41.tar.xz
linux-dev-d454f39f3ff3ee5a818c271026081a48a537bd41.zip
Merge branch 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6 into fix/asoc
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/imx/imx-pcm-dma-mx2.c9
-rw-r--r--sound/soc/imx/imx-ssi.h3
2 files changed, 7 insertions, 5 deletions
diff --git a/sound/soc/imx/imx-pcm-dma-mx2.c b/sound/soc/imx/imx-pcm-dma-mx2.c
index 671ef8dd524c..aab7765f401a 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;
+ slave_config.dst_maxburst = dma_params->burstsize * buswidth;
} 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;
+ slave_config.src_maxburst = dma_params->burstsize * buswidth;
}
ret = dmaengine_slave_config(iprtd->dma_chan, &slave_config);
@@ -303,6 +303,11 @@ static struct snd_soc_platform_driver imx_soc_platform_mx2 = {
static int __devinit imx_soc_platform_probe(struct platform_device *pdev)
{
+ struct imx_ssi *ssi = platform_get_drvdata(pdev);
+
+ ssi->dma_params_tx.burstsize = 6;
+ ssi->dma_params_rx.burstsize = 4;
+
return snd_soc_register_platform(&pdev->dev, &imx_soc_platform_mx2);
}
diff --git a/sound/soc/imx/imx-ssi.h b/sound/soc/imx/imx-ssi.h
index a4406a134892..dc8a87530e3e 100644
--- a/sound/soc/imx/imx-ssi.h
+++ b/sound/soc/imx/imx-ssi.h
@@ -234,7 +234,4 @@ void imx_pcm_free(struct snd_pcm *pcm);
*/
#define IMX_SSI_DMABUF_SIZE (64 * 1024)
-#define DMA_RXFIFO_BURST 0x4
-#define DMA_TXFIFO_BURST 0x6
-
#endif /* _IMX_SSI_H */