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| /openbmc/linux/drivers/dma/ |
| H A D | stm32-dma.c | 8d1b76f0 Tue Dec 13 07:40:47 CST 2016 M'boumba Cedric Madianga <cedric.madianga@gmail.com> dmaengine: stm32-dma: Rework starting transfer management
This patch reworks the way to manage transfer starting.
Now, starting DMA is only allowed when the channel is not busy.
Then, stm32_dma_start_transfer is declared as void.
At least, after each transfer completion, we start the next transfer if a
new descriptor as been queued in the issued list during an ongoing
transfer.
Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com>
Reviewed-by: Ludovic BARRE <ludovic.barre@st.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
8d1b76f0 Tue Dec 13 07:40:47 CST 2016 M'boumba Cedric Madianga <cedric.madianga@gmail.com> dmaengine: stm32-dma: Rework starting transfer management
This patch reworks the way to manage transfer starting.
Now, starting DMA is only allowed when the channel is not busy.
Then, stm32_dma_start_transfer is declared as void.
At least, after each transfer completion, we start the next transfer if a
new descriptor as been queued in the issued list during an ongoing
transfer.
Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com>
Reviewed-by: Ludovic BARRE <ludovic.barre@st.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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