[PATCH] dmaengine: stm32-mdma: correct desc prep when channel running

Vinod Koul vkoul at kernel.org
Mon Oct 16 04:13:05 PDT 2023


On Mon, 09 Oct 2023 10:24:50 +0200, Amelie Delaunay wrote:
> In case of the prep descriptor while the channel is already running, the
> CCR register value stored into the channel could already have its EN bit
> set.  This would lead to a bad transfer since, at start transfer time,
> enabling the channel while other registers aren't yet properly set.
> To avoid this, ensure to mask the CCR_EN bit when storing the ccr value
> into the mdma channel structure.
> 
> [...]

Applied, thanks!

[1/1] dmaengine: stm32-mdma: correct desc prep when channel running
      commit: 03f25d53b145bc2f7ccc82fc04e4482ed734f524

Best regards,
-- 
~Vinod





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