From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ray Jui Subject: Re: [PATCH] spi: pl022: Fix broken spidev when DMA is enabled Date: Wed, 8 Oct 2014 11:31:29 -0700 Message-ID: <54358301.20505@broadcom.com> References: <1412743127-4523-1-git-send-email-rjui@broadcom.com> <20141008112143.GT4609@sirena.org.uk> <543562EB.8060300@broadcom.com> <20141008182123.GH4609@sirena.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format=flowed Content-Transfer-Encoding: 7bit Cc: Grant Likely , , , JD Zheng , "Scott Branden" To: Mark Brown Return-path: In-Reply-To: <20141008182123.GH4609-GFdadSzt00ze9xe1eoZjHA@public.gmane.org> Sender: linux-spi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: 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 -- To unsubscribe from this list: send the line "unsubscribe linux-spi" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html