Re: [PATCH] dmaengine: sprd: Fix the DMA link-list configuration
From: Vinod Koul
Date: Wed Sep 04 2019 - 01:57:11 EST
On 30-08-19, 15:37, Baolin Wang wrote:
> For the Spreadtrum DMA link-list mode, when the DMA engine got a slave
> hardware request, which will trigger the DMA engine to load the DMA
> configuration from the link-list memory automatically. But before the
> slave hardware request, the slave will get an incorrect residue due
> to the first node used to trigger the link-list was configured as the
> last source address and destination address.
> Thus we should make sure the first node was configured the start source
> address and destination address, which can fix this issue.