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>
(cherry picked from commit a1b2cc50679c1d2eed44e2885f6178ce907498b7)
Signed-off-by: Simon Horman <horms@verge.net.au>
diff --git a/drivers/dma/shdma.c b/drivers/dma/shdma.c
index 727e76f..2a638f9 100644
--- a/drivers/dma/shdma.c
+++ b/drivers/dma/shdma.c
@@ -343,7 +343,7 @@
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);
}
