linux-kernel - Re: [PATCH v6 09/10] spi: omap2-mcspi: add generic DMA request support to the DT binding

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20130131013215.GF2244@beef>
Date:	Wed, 30 Jan 2013 20:32:15 -0500
From:	Matt Porter <mporter@...com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Linux DaVinci Kernel List 
	<davinci-linux-open-source@...ux.davincidsp.com>,
	Linux OMAP List <linux-omap@...r.kernel.org>,
	Russell King <linux@....linux.org.uk>,
	Benoit Cousson <b-cousson@...com>,
	Linux Documentation List <linux-doc@...r.kernel.org>,
	Tony Lindgren <tony@...mide.com>,
	Linux MMC List <linux-mmc@...r.kernel.org>,
	Devicetree Discuss <devicetree-discuss@...ts.ozlabs.org>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Vinod Koul <vinod.koul@...el.com>,
	Rob Landley <rob@...dley.net>, Dan Williams <djbw@...com>,
	Linux SPI Devel List 
	<spi-devel-general@...ts.sourceforge.net>,
	Chris Ball <cjb@...top.org>,
	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v6 09/10] spi: omap2-mcspi: add generic DMA request
 support to the DT binding

On Wed, Jan 30, 2013 at 09:24:00AM +0000, Arnd Bergmann wrote:
> On Wednesday 30 January 2013, Matt Porter wrote:
> > +Optional properties:
> > +- dmas: List of DMA controller phandle and DMA request ordered
> > +       pairs. One tx and one rx pair is required for each chip
> > +       select.
> 
> The binding looks ok, but the wording is slightly incorrect here:
> strictly speaking, it's not a pair of controller phandle and request
> line number, but a DMA descriptor as specified in bindings/dma/dma.txt
> with a format specific to the dma engine being used. That can
> require more than just a single integer request number.

Correct. I will update accordingly.

-Matt
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/