Re: [PATCH v5] dmaengine: pl330: flush before wait, and add dev burst support.
From: Vinod Koul
Date: Wed Apr 25 2018 - 05:11:56 EST
On Wed, Apr 18, 2018 at 08:31:06PM -0400, Frank Mori Hess wrote:
> Do DMAFLUSHP _before_ the first DMAWFP to ensure controller
> and peripheral are in agreement about dma request state before first
> transfer. Add support for burst transfers to/from peripherals. In the new
> scheme, the controller does as many burst transfers as it can then
> transfers the remaining dregs with either single transfers for
> peripherals, or with a reduced size burst for memory-to-memory transfers.