From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [PATCH v3 1/7] dmaengine: of_dma: Support for DMA routers Date: Sat, 28 Mar 2015 02:44:46 +0100 Message-ID: <201503280244.46961.arnd@arndb.de> References: <1427459213-14611-1-git-send-email-peter.ujfalusi@ti.com> <1427459213-14611-2-git-send-email-peter.ujfalusi@ti.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Return-path: Received: from mout.kundenserver.de ([212.227.17.10]:49445 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752270AbbC1Bpu (ORCPT ); Fri, 27 Mar 2015 21:45:50 -0400 In-Reply-To: <1427459213-14611-2-git-send-email-peter.ujfalusi@ti.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Peter Ujfalusi Cc: vinod.koul@intel.com, tony@atomide.com, linux@arm.linux.org.uk, grant.likely@linaro.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org, robh+dt@kernel.org, nm@ti.com On Friday 27 March 2015, Peter Ujfalusi wrote: > +Required property: > +- dma-device: phandle of the DMA controller. The router is modifying > + the DMA requests for this controller. This property seems rather specific to the case at hand, I would expect that one might also see routers like this that are connected to more than one dma-device, so maybe make it a list? It might also be better to name this as 'dma-controllers' or 'dma-masters', as it is not entirely obvious (without referencing the binding document) whether a dma device refers to the slave or the master. Arnd From mboxrd@z Thu Jan 1 00:00:00 1970 From: arnd@arndb.de (Arnd Bergmann) Date: Sat, 28 Mar 2015 02:44:46 +0100 Subject: [PATCH v3 1/7] dmaengine: of_dma: Support for DMA routers In-Reply-To: <1427459213-14611-2-git-send-email-peter.ujfalusi@ti.com> References: <1427459213-14611-1-git-send-email-peter.ujfalusi@ti.com> <1427459213-14611-2-git-send-email-peter.ujfalusi@ti.com> Message-ID: <201503280244.46961.arnd@arndb.de> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Friday 27 March 2015, Peter Ujfalusi wrote: > +Required property: > +- dma-device: phandle of the DMA controller. The router is modifying > + the DMA requests for this controller. This property seems rather specific to the case at hand, I would expect that one might also see routers like this that are connected to more than one dma-device, so maybe make it a list? It might also be better to name this as 'dma-controllers' or 'dma-masters', as it is not entirely obvious (without referencing the binding document) whether a dma device refers to the slave or the master. Arnd