Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752978AbbBWWPd (ORCPT ); Mon, 23 Feb 2015 17:15:33 -0500 Received: from mail-qa0-f50.google.com ([209.85.216.50]:34610 "EHLO mail-qa0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751959AbbBWWP3 (ORCPT ); Mon, 23 Feb 2015 17:15:29 -0500 MIME-Version: 1.0 In-Reply-To: <54EBA4D0.1060705@ti.com> References: <1423173179-10227-1-git-send-email-m-karicheri2@ti.com> <20150206151542.GD23190@e104818-lin.cambridge.arm.com> <54D4DD95.7000303@ti.com> <54D509C9.9010204@ti.com> <54DB8960.9010707@ti.com> <54DB8A4C.9050002@ti.com> <54EBA4D0.1060705@ti.com> From: Bjorn Helgaas Date: Mon, 23 Feb 2015 16:15:08 -0600 Message-ID: Subject: Re: [PATCH v6 0/7] PCI: get DMA configuration from parent device To: Murali Karicheri Cc: Arnd Bergmann , Catalin Marinas , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "iommu@lists.linux-foundation.org" , "devicetree@vger.kernel.org" , "linux-pci@vger.kernel.org" , Russell King , Joerg Roedel , Will Deacon , Rob Herring , "suravee.suthikulpanit@amd.com" , "grant.likely@linaro.org" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 4666 Lines: 115 On Mon, Feb 23, 2015 at 4:08 PM, Murali Karicheri wrote: > On 02/11/2015 11:58 AM, Murali Karicheri wrote: >> >> On 02/11/2015 11:54 AM, Murali Karicheri wrote: >>> >>> On 02/06/2015 01:36 PM, Murali Karicheri wrote: >>>> >>>> On 02/06/2015 12:53 PM, Bjorn Helgaas wrote: >>>>> >>>>> On Fri, Feb 6, 2015 at 9:28 AM, Murali Karicheri >>>>> wrote: >>>>>> >>>>>> On 02/06/2015 10:15 AM, Catalin Marinas wrote: >>>>>>> >>>>>>> >>>>>>> On Thu, Feb 05, 2015 at 09:52:52PM +0000, Murali Karicheri wrote: >>>>>>>> >>>>>>>> >>>>>>>> This patch add an important capability to PCI driver on Keystone. I >>>>>>>> hope >>>>>>>> to >>>>>>>> have this merged to the upstream branch so that it is available for >>>>>>>> v3.20. >>>>>>> >>>>>>> >>>>>>> It's very late for 3.20 and the code hasn't been in linux-next at all >>>>>>> (but it's not me who's merging this code), unless you can squeeze >>>>>>> it in >>>>>>> as a bug-fix. >>>>>> >>>>>> >>>>>> This is in fact a bug fix as PCI on Keystone is broken without this. >>>>> >>>>> >>>>> Oh, sorry, I didn't realize that this was so urgent. I guess I read >>>>> "this adds an important capability" in the cover letter and concluded >>>>> that it was new functionality. >>>> >>>> Bjorn, >>>> >>>> Thanks for responding. >>>> >>>> Let me give you some context on this without which my explanation won't >>>> be complete. For using PCI driver on Keystone, I had submitted patches >>>> related to machine and DTS to the arm mailing list to enable the driver >>>> on Keystone. Subsequenty one of the patch from my series was Nack-ed and >>>> I was asked to implememented in a different way and started this series. >>>> You can refer to the discussion of this at >>>> >>>> http://www.gossamer-threads.com/lists/linux/kernel/2024591 >>>> >>>> The PCI driver enablement on Keystone is still a working in progress and >>>> I am trying to get it fully functional on the upstream. Another missing >>>> piece is the SerDes phy driver patch. We have started working on the >>>> other part (SerDes phy driver) already as the initial one was not >>>> accepted. So it is fine if we are too late for the v3.20 merge window to >>>> merge this series and this can be applied to the next branch for v3.21. >>>> >>>>> >>>>> Anyway, if it's broken, presumably PCI on Keystone *did* work at one >>>>> point. Can you identify the commit that broke it and requires these >>>>> fixes, so we can figure out how far the fixes need to be backported? >>>>> >>>> >>>> I am trying to get this driver enabled on Keystone by adding the missing >>>> pieces as described above. So I guess we don't have to back port >>>> anything here. >>>> >>>>> If I merge it, I would like to get into my for-linus branch and get a >>>>> little time in -next before asking Linus to pull it. The merge window >>>>> is a little wrinkle there -- I don't like to add new things to the mix >>>>> during the window. But if it's an important fix we can still get it >>>>> in before the final v3.20. >>>> >>>> >>>> Please apply this to next branch for v3.21. It currently apply cleanly >>>> to v3.19-rc7. If you want me rebase to another branch, let me know I can >>>> apply and send you an updated patch. >>>> >>> Bjorn, Arnd, >>> >>> I am assuming, Bjorn is going to merge this to his next branch for >>> v3.21. If not, it might have to be merged through the arm soc? There are >>> a couple of Tested-by and Acked-by received after v7. Do you want me to >>> post v8 with these updated in the patches? >> >> FYI. >> >> These are the updates. >> Series was >> >> 1) Tested-by: Suravee Suthikulpanit >> (on AMD Seattle platform w/ PCI Generic Host controller) >> 2) Acked-by: Will Deacon >> 3) Reviewed-by: Catalin Marinas >> > Bjorn, > > I haven't seen a reply from my above email. As soon as you are ready to pull > this to v4.1 next (originally requested for v3.21 as per above email)branch, > please let me know and I can send you an updated version rebased to your > next branch and with the above acks. My "next" and "for-linus" branches will be based on v4.0-rc1, so that's the ideal base for patches. I don't expect any significant changes that would require a rebase, so unless something in your patches themselves has changed since you last posted them, you don't need to repost them just for a rebase. Bjorn -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/