From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vinod Koul Subject: Re: [PATCH 1/2] of: dma: make #dma-cells optional Date: Thu, 7 Mar 2013 12:04:26 +0530 Message-ID: <20130307063426.GF13370@intel.com> References: <1362013078-2213-1-git-send-email-robherring2@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1362013078-2213-1-git-send-email-robherring2@gmail.com> Sender: linux-kernel-owner@vger.kernel.org To: Rob Herring Cc: linux-kernel@vger.kernel.org, devicetree-discuss@lists.ozlabs.org, Rob Herring , Dan Williams , Grant Likely List-Id: devicetree@vger.kernel.org On Wed, Feb 27, 2013 at 06:57:57PM -0600, Rob Herring wrote: > From: Rob Herring > > For controllers with no requests/clients (memory to memory only), the Change log is truncated... > > Signed-off-by: Rob Herring > Cc: Vinod Koul > Cc: Dan Williams > Cc: Grant Likely > --- > Documentation/devicetree/bindings/dma/dma.txt | 7 ++++--- > 1 file changed, 4 insertions(+), 3 deletions(-) > > diff --git a/Documentation/devicetree/bindings/dma/dma.txt b/Documentation/devicetree/bindings/dma/dma.txt > index 8f504e6..d388f06 100644 > --- a/Documentation/devicetree/bindings/dma/dma.txt > +++ b/Documentation/devicetree/bindings/dma/dma.txt > @@ -8,9 +8,10 @@ controller. > * DMA controller > > Required property: > -- #dma-cells: Must be at least 1. Used to provide DMA controller > - specific information. See DMA client binding below for > - more details. > +- #dma-cells: Required for controllers with requests. Optional for > + memory to memory only DMA controllers. Must be at least > + 1. Used to provide DMA controller specific information. > + See DMA client binding below for more details. > > Optional properties: > - dma-channels: Number of DMA channels supported by the controller. > -- > 1.7.10.4 >