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dma: mxs-dma: Update state after channel reset

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After a channel reset, the channel stops running automatically. The
state update was missing so that a channel perperation right after a
channel reset failed.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Markus Pargmann 2013-10-29 08:47:48 +01:00 committed by Vinod Koul
parent 702e94d66b
commit bb3660f130
1 changed files with 3 additions and 1 deletions
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4
drivers/dma/mxs-dma.c
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@ -235,6 +235,8 @@ static void mxs_dma_reset_chan(struct mxs_dma_chan *mxs_chan)
writel(1 << (chan_id + BP_APBHX_CHANNEL_CTRL_RESET_CHANNEL),
mxs_dma->base + HW_APBHX_CHANNEL_CTRL + STMP_OFFSET_REG_SET);
}
mxs_chan->status = DMA_COMPLETE;
}
static void mxs_dma_enable_chan(struct mxs_dma_chan *mxs_chan)
@ -362,7 +364,7 @@ static irqreturn_t mxs_dma_int_handler(int irq, void *dev_id)
chan);
mxs_chan->status = DMA_ERROR;
mxs_dma_reset_chan(mxs_chan);
} else {
} else if (mxs_chan->status != DMA_COMPLETE) {
if (mxs_chan->flags & MXS_DMA_SG_LOOP)
mxs_chan->status = DMA_IN_PROGRESS;
else