Re: [PATCH 0/2] STM32 DMA alternative REQ/ACK protocol support

From: Vinod Koul
Date: Wed Jul 28 2021 - 03:10:07 EST


On 24-06-21, 11:39, Amelie Delaunay wrote:
> Default REQ/ACK protocol consists in maintaining ACK signal up to the
> removal of REQuest and the transfer completion.
> In case of alternative REQ/ACK protocol, ACK de-assertion does not wait the
> removal of the REQuest, but only the transfer completion.
> Due to a possible DMA stream lock when transferring data to/from STM32
> USART/UART, add support to select alternative REQ/ACK protocol.

Applied, thanks

--
~Vinod