From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933248AbbDITPq (ORCPT ); Thu, 9 Apr 2015 15:15:46 -0400 Received: from muru.com ([72.249.23.125]:43350 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755965AbbDITPo (ORCPT ); Thu, 9 Apr 2015 15:15:44 -0400 Date: Thu, 9 Apr 2015 12:12:07 -0700 From: Tony Lindgren To: Peter Ujfalusi Cc: vinod.koul@intel.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, arnd@arndb.de, maxime.ripard@free-electrons.com Subject: Re: [PATCH v5 8/8] ARM: DTS: dra7x: Integrate sDMA crossbar Message-ID: <20150409191206.GU18048@atomide.com> References: <1428572154-3548-1-git-send-email-peter.ujfalusi@ti.com> <1428572154-3548-9-git-send-email-peter.ujfalusi@ti.com> <20150409151846.GR18048@atomide.com> <5526C9E5.4070601@ti.com> <20150409190126.GT18048@atomide.com> <5526CD6A.8010300@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5526CD6A.8010300@ti.com> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Peter Ujfalusi [150409 12:07]: > On 04/09/2015 10:01 PM, Tony Lindgren wrote: > > * Peter Ujfalusi [150409 11:55]: > >> On 04/09/2015 06:18 PM, Tony Lindgren wrote: > >>> * Peter Ujfalusi [150409 02:37]: > >>>> The sDMA requests are routed through the DMA crossbar and without the > >>>> crossbar only peripherals using DMA request 0-127 can be used. > >>> > >>> I assume this can be merged separately from the driver > >>> changes? > >> > >> Unfortunately not. We need to have the drivers in place for the DTS changes to > >> work. > > > > Right but just merging the driver changes presumably won't > > break things? > > No, they will not break anything. We just do not have control over the DMA > crossbar (in a same way as we don't have control right now). OK good to hear. Thanks, Tony From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH v5 8/8] ARM: DTS: dra7x: Integrate sDMA crossbar Date: Thu, 9 Apr 2015 12:12:07 -0700 Message-ID: <20150409191206.GU18048@atomide.com> References: <1428572154-3548-1-git-send-email-peter.ujfalusi@ti.com> <1428572154-3548-9-git-send-email-peter.ujfalusi@ti.com> <20150409151846.GR18048@atomide.com> <5526C9E5.4070601@ti.com> <20150409190126.GT18048@atomide.com> <5526CD6A.8010300@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <5526CD6A.8010300-l0cyMroinI0@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Peter Ujfalusi Cc: vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org, grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, nm-l0cyMroinI0@public.gmane.org, arnd-r2nGTMty4D4@public.gmane.org, maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org List-Id: devicetree@vger.kernel.org * Peter Ujfalusi [150409 12:07]: > On 04/09/2015 10:01 PM, Tony Lindgren wrote: > > * Peter Ujfalusi [150409 11:55]: > >> On 04/09/2015 06:18 PM, Tony Lindgren wrote: > >>> * Peter Ujfalusi [150409 02:37]: > >>>> The sDMA requests are routed through the DMA crossbar and without the > >>>> crossbar only peripherals using DMA request 0-127 can be used. > >>> > >>> I assume this can be merged separately from the driver > >>> changes? > >> > >> Unfortunately not. We need to have the drivers in place for the DTS changes to > >> work. > > > > Right but just merging the driver changes presumably won't > > break things? > > No, they will not break anything. We just do not have control over the DMA > crossbar (in a same way as we don't have control right now). OK good to hear. Thanks, Tony -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 From: tony@atomide.com (Tony Lindgren) Date: Thu, 9 Apr 2015 12:12:07 -0700 Subject: [PATCH v5 8/8] ARM: DTS: dra7x: Integrate sDMA crossbar In-Reply-To: <5526CD6A.8010300@ti.com> References: <1428572154-3548-1-git-send-email-peter.ujfalusi@ti.com> <1428572154-3548-9-git-send-email-peter.ujfalusi@ti.com> <20150409151846.GR18048@atomide.com> <5526C9E5.4070601@ti.com> <20150409190126.GT18048@atomide.com> <5526CD6A.8010300@ti.com> Message-ID: <20150409191206.GU18048@atomide.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org * Peter Ujfalusi [150409 12:07]: > On 04/09/2015 10:01 PM, Tony Lindgren wrote: > > * Peter Ujfalusi [150409 11:55]: > >> On 04/09/2015 06:18 PM, Tony Lindgren wrote: > >>> * Peter Ujfalusi [150409 02:37]: > >>>> The sDMA requests are routed through the DMA crossbar and without the > >>>> crossbar only peripherals using DMA request 0-127 can be used. > >>> > >>> I assume this can be merged separately from the driver > >>> changes? > >> > >> Unfortunately not. We need to have the drivers in place for the DTS changes to > >> work. > > > > Right but just merging the driver changes presumably won't > > break things? > > No, they will not break anything. We just do not have control over the DMA > crossbar (in a same way as we don't have control right now). OK good to hear. Thanks, Tony