linux-kernel - Re: [PATCH 3/4] spi: imx: Chose DMA bits per word transfered

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Date:	Mon, 23 Feb 2015 09:44:50 +0100
From:	aurélien bouin <a.bouin@...il.com>
To:	Mark Brown <broonie@...nel.org>
Cc:	Fabio Estevam <festevam@...il.com>,
	linux-spi <linux-spi@...r.kernel.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/4] spi: imx: Chose DMA bits per word transfered

At the moment there is no possibility to change the dma bits per word use ...
It is an easy way to be able to do so.
Feel free to propose something better

2015-02-21 15:35 GMT+01:00 Mark Brown <broonie@...nel.org>:
> On Thu, Feb 12, 2015 at 01:07:27PM +0100, Aurelien BOUIN wrote:
>> This patch enable to give a parameter to device tree to set the number of bits per word the DMA uses in transfer
>> In device tree you can specify fsl,spi-dma-bits-per-word = <16>; in the ecspi section
>
> Why would this be a DT property?  It seems like something the driver
> ought to be able to figure out automatically if it matters.
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