From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Ujfalusi Subject: Re: [PATCH v3 00/13] ARM/DT: edma: IP configuration from hardware and cleanups Date: Mon, 19 May 2014 19:53:13 +0300 Message-ID: <537A36F9.40004@ti.com> References: <1400242640-9902-1-git-send-email-peter.ujfalusi@ti.com> <537A01F2.2090107@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <537A01F2.2090107@ti.com> Sender: linux-doc-owner@vger.kernel.org To: Sekhar Nori , joelf@ti.com, arnd@arndb.de Cc: linux@arm.linux.org.uk, vinod.koul@intel.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-doc@vger.kernel.org, tony@atomide.com, bcousson@baylibre.com List-Id: devicetree@vger.kernel.org On 05/19/2014 04:06 PM, Sekhar Nori wrote: > On Friday 16 May 2014 05:47 PM, Peter Ujfalusi wrote: >> Hi, >> >> Changes since v2: >> - Comments from Sekhar and Arnd has been addressed best as I could. >> - Use the CCCFG information in all cases instead of pdata provided i= nformation >> - To achieve this I needed to do a bit more cleanup in this series >> - In the documentation patch, retrain the old properties for referen= ce >> - Cleanups in the old davinci board files and removing edma_soc_info= members >> >> Changes sicne v1: >> - added missing patch to remove the memset from edma_of_parse_dt() >> >> We are requesting redundant information via DT for the driver since = the very same >> data is available in the HW: by reading and decoding the content of = CCCFG >> register we can get: >> Number of channels: NUM_DMACH >> Number of regions: NUM_REGN >> Number of slots (PaRAM sets): NUM_PAENTRY >> Number of TC/EQ: NUM_EVQUE >> >> So these does not need to be provided by the DT binding. >> >> The driver will no longer look for these properties from DT and they= can be >> removed from the binding documentation and from the dtsi files as we= ll. >> The change will not introduce regression when new kernel is booted u= sing older >> DTB (since we just ignore the mentioned properties). >=20 > Applied all patches and pushed to branch v3.16/edma of: >=20 > git://git.kernel.org/pub/scm/linux/kernel/git/nsekhar/linux-davinci.g= it >=20 > Since the patches did not apply cleanly, please verify. I tested on > DA850 EVM using MMC/SD as EDMA user. The patches in this series looks OK in your branch. However I can not find the following commits in there, which I have in = linux-next: c689a7b79c28 Merge remote-tracking branch 'slave-dma/next' cdae05a0f0f7 dmaengine: edma: Make reading the position of active chann= els work cf7eb979116c ARM: common: edma: Fix xbar mapping 232b223d8281 dmaengine: edma: Set DMA_CYCLIC capability flag 7cf2af90cd51 arm: common: edma: Save the number of event queues/TCs They might come via different route... >=20 > I will wait to get acks from DT maintainers before sending to ARM-SoC= =2E >=20 > Thanks, > Sekhar >=20 Thanks, P=E9ter