linux-kernel - Re: [PATCH v2] dmaengine: ti: k3-udma: Respond TX done if DMA_PREP

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Message-ID: <YzXQYE/N3S+TijFI@matsya>
Date:   Thu, 29 Sep 2022 22:35:36 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Vaishnav Achath <vaishnav.a@...com>
Cc:     dmaengine@...r.kernel.org, kishon@...com,
        linux-kernel@...r.kernel.org, peter.ujfalusi@...il.com,
        vigneshr@...com
Subject: Re: [PATCH v2] dmaengine: ti: k3-udma: Respond TX done if
 DMA_PREP_INTERRUPT is not requested

On 14-09-22, 16:30, Vaishnav Achath wrote:
> If the DMA consumer driver does not expect the callback for TX done, then
> we need not perform the channel RT byte counter calculations and estimate
> the completion but return complete on first attempt itself.This assumes
> that the consumer who did not request DMA_PREP_INTERRUPT has its own
> mechanism for understanding TX completion, example: MCSPI EOW interrupt
> can be used as TX completion signal for a SPI transaction.

Applied, thanks

-- 
~Vinod