From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Rutland Subject: Re: [PATCH 1/2] dma: add Qualcomm Technologies HIDMA management driver Date: Fri, 30 Oct 2015 19:01:06 +0000 Message-ID: <20151030190106.GC30791@leverpostej> References: <1446174501-8870-1-git-send-email-okaya@codeaurora.org> <20151030150025.GF31073@leverpostej> <5633B207.5030505@codeaurora.org> <20151030182537.GB30791@leverpostej> <5633BB66.3070505@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <5633BB66.3070505-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Sinan Kaya Cc: Andy Shevchenko , dmaengine , timur-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, cov-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, jcm-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, Rob Herring , Pawel Moll , Ian Campbell , Kumar Gala , Vinod Koul , Dan Williams , devicetree , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , leif.lindholm-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, al.stone-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org List-Id: devicetree@vger.kernel.org On Fri, Oct 30, 2015 at 02:48:06PM -0400, Sinan Kaya wrote: > >>>>It was decided by > >>>>Linaro that CSRT will not be supported for ARM64. > See this. > > https://wiki.linaro.org/LEG/Engineering/Kernel/ACPI/TablePriorities The CSRT is listed under "Want", not "Never" or "Don't Care", so Linaro have certainly not said that CSRT will not be supported. If anything, they have stated that the table should be supported. I suspect that the rationale for it not being "Critical" or "Must" is that it's possible to use contemporary systems without DMA engines, but we will need support at some point in future. I also note that there are Linaro patches adding supoprt for DBG2 [1] , which is listed as "Never". So the page may be out of date... Leif, Al? [1] https://lkml.org/lkml/2015/9/8/287 Thanks, Mark. -- 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