From: Arnd Bergmann <arnd@arndb.de>
To: linux-arm-kernel@lists.infradead.org
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>,
        Shawn Guo <shawn.guo@freescale.com>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        "Strashko, Grygorii" <grygorii.strashko@ti.com>,
        Russell King <linux@arm.linux.org.uk>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Olof Johansson <olof@lixom.net>, Rob Herring <robh+dt@kernel.org>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Grant Likely <grant.likely@linaro.org>
Subject: Re: [PATCH v3 0/7] of: setup dma parameters using dma-ranges and dma-coherent
Date: Mon, 02 Jun 2014 17:06:02 +0200
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On Monday 02 June 2014 09:24:50 Santosh Shilimkar wrote:
> On Monday 02 June 2014 02:37 AM, Shawn Guo wrote:
> > On Thu, Apr 24, 2014 at 11:30:00AM -0400, Santosh Shilimkar wrote:
> >> Here is an updated v3 of the series. Series introduces support for setting up
> >> dma parameters based on device tree properties like 'dma-ranges' and
> >> 'dma-coherent' and also update to ARM 32 bit port. Earlier version of the
> >> series can be found here [3], [2] and [1].
> > 
> > Are these two generic device tree properties documented somewhere under
> > Documentation/devicetree/bindings?
> > 
> These bindings have been already in use before this series. But looks like
> they have not been documented. I will do a patch to add description for those
> couple of parameters.

dma-ranges is part of ePAPR, and was documented in some ieee-1275 addenda
before that, but I agree it would be nice to have something in kernel as
well, at the minimum something pointing to the relevant documents.

	Arnd
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