From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756131AbbDITH3 (ORCPT ); Thu, 9 Apr 2015 15:07:29 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:49890 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753987AbbDITH1 (ORCPT ); Thu, 9 Apr 2015 15:07:27 -0400 Message-ID: <5526CD6A.8010300@ti.com> Date: Thu, 9 Apr 2015 22:05:14 +0300 From: Peter Ujfalusi User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 MIME-Version: 1.0 To: Tony Lindgren CC: , , , , , , , , , , , Subject: Re: [PATCH v5 8/8] ARM: DTS: dra7x: Integrate sDMA crossbar 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> In-Reply-To: <20150409190126.GT18048@atomide.com> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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). -- Péter From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Ujfalusi Subject: Re: [PATCH v5 8/8] ARM: DTS: dra7x: Integrate sDMA crossbar Date: Thu, 9 Apr 2015 22:05:14 +0300 Message-ID: <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> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <20150409190126.GT18048@atomide.com> Sender: linux-kernel-owner@vger.kernel.org To: Tony Lindgren 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 List-Id: devicetree@vger.kernel.org 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. >=20 > 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). --=20 P=E9ter From mboxrd@z Thu Jan 1 00:00:00 1970 From: peter.ujfalusi@ti.com (Peter Ujfalusi) Date: Thu, 9 Apr 2015 22:05:14 +0300 Subject: [PATCH v5 8/8] ARM: DTS: dra7x: Integrate sDMA crossbar In-Reply-To: <20150409190126.GT18048@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> Message-ID: <5526CD6A.8010300@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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). -- P?ter