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dw_dmac: disable BLOCK interrupts

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Just to be sure we are in known state we disable the BLOCK interupts.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.linux@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
This commit is contained in:
Andy Shevchenko 2012-06-19 13:34:07 +03:00 committed by Vinod Koul
parent 11f932ec22
commit 236b106f1a
1 changed files with 4 additions and 0 deletions
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4
drivers/dma/dw_dmac.c
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@ -1437,6 +1437,9 @@ static int __init dw_probe(struct platform_device *pdev)
/* force dma off, just in case */
dw_dma_off(dw);
/* disable BLOCK interrupts as well */
channel_clear_bit(dw, MASK.BLOCK, dw->all_chan_mask);
err = request_irq(irq, dw_dma_interrupt, 0, "dw_dmac", dw);
if (err)
goto err_irq;
@ -1476,6 +1479,7 @@ static int __init dw_probe(struct platform_device *pdev)
/* Clear all interrupts on all channels. */
dma_writel(dw, CLEAR.XFER, dw->all_chan_mask);
dma_writel(dw, CLEAR.BLOCK, dw->all_chan_mask);
dma_writel(dw, CLEAR.SRC_TRAN, dw->all_chan_mask);
dma_writel(dw, CLEAR.DST_TRAN, dw->all_chan_mask);
dma_writel(dw, CLEAR.ERROR, dw->all_chan_mask);