From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754066AbbHSPFO (ORCPT ); Wed, 19 Aug 2015 11:05:14 -0400 Received: from mga09.intel.com ([134.134.136.24]:11769 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932265AbbHSPFK (ORCPT ); Wed, 19 Aug 2015 11:05:10 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.15,710,1432623600"; d="scan'208";a="751576546" Date: Wed, 19 Aug 2015 20:36:05 +0530 From: Vinod Koul To: Peter Griffin Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, srinivas.kandagatla@gmail.com, maxime.coquelin@st.com, patrice.chotard@st.com, dan.j.williams@intel.com, lee.jones@linaro.org, devicetree@vger.kernel.org, dmaengine@vger.kernel.org, ludovic.barre@st.com Subject: Re: [PATCH 1/7] dmaengine: st_fdma: Add STMicroelectronics FDMA DT binding documentation Message-ID: <20150819150605.GA13546@localhost> References: <1436371888-27863-1-git-send-email-peter.griffin@linaro.org> <1436371888-27863-2-git-send-email-peter.griffin@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1436371888-27863-2-git-send-email-peter.griffin@linaro.org> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jul 08, 2015 at 05:11:22PM +0100, Peter Griffin wrote: > This patch adds the DT binding documentation for the FDMA constroller > found on STi based chipsets from STMicroelectronics. > > Signed-off-by: Ludovic Barre > Signed-off-by: Peter Griffin > --- > Documentation/devicetree/bindings/dma/st_fdma.txt | 76 +++++++++++++++++++++++ > 1 file changed, 76 insertions(+) > create mode 100644 Documentation/devicetree/bindings/dma/st_fdma.txt > > diff --git a/Documentation/devicetree/bindings/dma/st_fdma.txt b/Documentation/devicetree/bindings/dma/st_fdma.txt > new file mode 100644 > index 0000000..1ec7470 > --- /dev/null > +++ b/Documentation/devicetree/bindings/dma/st_fdma.txt > @@ -0,0 +1,76 @@ > +* STMicroelectronics Flexible Direct Memory Access Device Tree bindings > + > +The FDMA is a general-purpose direct memory access controller capable of > +supporting 16 independent DMA channels. It accepts up to 32 DMA requests. > +The FDMA is based on a Slim processor which require a firmware. > + > +* FDMA Controller > + > +Required properties: > +- compatible : Should be "st,fdma_mpe31" > +- reg : Should contain DMA registers location and length > +- interrupts : Should contain one interrupt shared by all channel s/channel/channels > +- dma-channels : Number of channels supported by the controller > +- #dma-cells : Must be <3>. any reason three? -- ~Vinod