Message-ID: <54358301.20505@broadcom.com>
Date: Wed, 8 Oct 2014 11:31:29 -0700
From: Ray Jui <rjui@broadcom.com>
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To: Mark Brown <broonie@kernel.org>
CC: Grant Likely <grant.likely@linaro.org>, <linux-spi@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, JD Zheng <jdzheng@broadcom.com>,
        "Scott Branden" <sbranden@broadcom.com>
Subject: Re: [PATCH] spi: pl022: Fix broken spidev when DMA is enabled
References: <rjui@broadcom.com> <1412743127-4523-1-git-send-email-rjui@broadcom.com> <20141008112143.GT4609@sirena.org.uk> <543562EB.8060300@broadcom.com> <20141008182123.GH4609@sirena.org.uk>
In-Reply-To: <20141008182123.GH4609@sirena.org.uk>
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On 10/8/2014 11:21 AM, Mark Brown wrote:
> On Wed, Oct 08, 2014 at 09:14:35AM -0700, Ray Jui wrote:
>
>> Thanks for the reply. It looks like you are also the maintainer of spidev.
>> In this case, could you please help to confirm that you expect spidev to use
>> separate buffers for TX and RX? If so, I can go ahead and make the change in
>> spidev.
>
> Yes, that would be my expectation for maximum robustness (or if it is
> going to use one buffer it explicitly maps it for mixed use but I'd
> expect that to be asking for trouble).
>
Okay, Mark. I'm going to make the change in the spidev and submit a new 
patch.

Thanks for the feedback.

Ray
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