linux-kernel - Re: [PATCH v2] spi: imx: support DMA for imx35

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Message-ID: <20161024170453.GE17252@sirena.org.uk>
Date:   Mon, 24 Oct 2016 18:04:53 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Martin Kaiser <martin@...ser.cx>
Cc:     linux-spi@...r.kernel.org, linux-kernel@...r.kernel.org,
        s.hauer@...gutronix.de
Subject: Re: [PATCH v2] spi: imx: support DMA for imx35

On Thu, Oct 20, 2016 at 12:42:25AM +0200, Martin Kaiser wrote:
> Support DMA transfers on imx35 and compatible chipsets (imx31, imx25).
> 
> If DMA can be used, set the start mode control (SMC) bit to start the
> SPI burst as soon as data is written into the tx fifo. Configure DMA
> requests when the fifo is half empty during tx or half full during rx.
> 
> Signed-off-by: Martin Kaiser <martin@...ser.cx>
> ---
> changes since v1:
>    fix indentation

Please don't send new patches as followups for old ones, it makes it
harder to follow what's going on when things get threaded.

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