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dmaengine: shdma: fix a regression: initialise DMA channels for memcpy 

A recent patch has introduced a regression, where repeating a memcpy
DMA test with shdma module unloading between them skips the DMA channel
configuration. Fix this regression by always configuring the channel
during its allocation.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Guennadi Liakhovetski 2011-05-31 09:25:16 +00:00 committed by Paul Mundt
parent 1222de7c41
commit a1b2cc5067
1 changed files with 1 additions and 1 deletions
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2
drivers/dma/shdma.c
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@ -343,7 +343,7 @@ static int sh_dmae_alloc_chan_resources(struct dma_chan *chan)
dmae_set_dmars(sh_chan, cfg->mid_rid);
dmae_set_chcr(sh_chan, cfg->chcr);
} else if ((sh_dmae_readl(sh_chan, CHCR) & 0xf00) != 0x400) {
} else {
dmae_init(sh_chan);
}