This is a note to let you know that I've just added the patch titled
ASoC: imx: fix burstsize for DMA
to the 2.6.38-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-imx-fix-burstsize-for-dma.patch
and it can be found in the queue-2.6.38 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From e1bb31b444668bc957c337d33803db7cb3330745 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <[email protected]>
Date: Fri, 25 Mar 2011 16:51:45 +0100
Subject: ASoC: imx: fix burstsize for DMA
From: Wolfram Sang <[email protected]>
commit e1bb31b444668bc957c337d33803db7cb3330745 upstream.
SSI counts in words, the DMA engine in bytes. (Wrong) factor got removed
in bf974a0 (ASoC i.MX: switch to new DMA api).
Signed-off-by: Wolfram Sang <[email protected]>
Acked-by: Liam Girdwood <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
sound/soc/imx/imx-pcm-dma-mx2.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- 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_
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);
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.38/asoc-imx-fix-burstsize-for-dma.patch
queue-2.6.38/asoc-imx-set-watermarks-for-mx2-dma.patch
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