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Groups > linux.kernel > #1401362
| From | Jiada Wang <jiada_wang@mentor.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 04/10] dma: imx-sdma: update sdma channel status for cyclic dma |
| Date | 2016-05-16 10:40 +0200 |
| Message-ID | <rzmed-4Dx-5@gated-at.bofh.it> (permalink) |
| References | <rzmed-4Dx-3@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Previously for cyclic dma mode, once sdma fails sdma channel status will be set to DMA_ERROR, unless the transfer is prepared again, sdmac status will always be kept to DMA_ERROR, even the transfer for following buffers is successful. This patch updates sdmac status to the status of current buffer descriptor. Signed-off-by: Jiada Wang <jiada_wang@mentor.com> --- drivers/dma/imx-sdma.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 1489de0..36f5e39 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -670,6 +670,8 @@ static void sdma_handle_channel_loop(struct sdma_channel *sdmac) if (bd->mode.status & BD_RROR) sdmac->status = DMA_ERROR; + else + sdmac->status = DMA_IN_PROGRESS; bd->mode.status &= ~BD_RROR; bd->mode.status |= BD_DONE; -- 2.4.5
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[PATCH 04/10] dma: imx-sdma: update sdma channel status for cyclic dma Jiada Wang <jiada_wang@mentor.com> - 2016-05-16 10:40 +0200
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