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ASoC: kirkwood-dma: fix use of virt_to_phys()

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This is part of a patch found in Rabeeh Khoury's git tree for the
cubox.

You can not use virt_to_phys() on the address returned from
dma_alloc_coherent(); it may not be part of the kernel direct-mapped
memory.  Fix this to use the DMA address instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Russell King
2012-11-20 12:17:51 +00:00
committed by Mark Brown
parent f4a75d2eb7
commit ae6a5d3772
1 changed files with 1 additions and 1 deletions
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2
sound/soc/kirkwood/kirkwood-dma.c
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@@ -178,7 +178,7 @@ static int kirkwood_dma_open(struct snd_pcm_substream *substream)
}
dram = mv_mbus_dram_info();
addr = virt_to_phys(substream->dma_buffer.area);
addr = substream->dma_buffer.addr;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
prdata->play_stream = substream;
kirkwood_dma_conf_mbus_windows(priv->io,