linux-kernel - Re: [PATCH v6 2/3] arm64: dts: ls1028a: Add PCIe controller DT nodes

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Date:   Wed, 26 Feb 2020 16:42:05 +0100
From:   Michael Walle <michael@...le.cc>
To:     "Z.q. Hou" <zhiqiang.hou@....com>
Cc:     Shawn Guo <shawnguo@...nel.org>, Xiaowei Bao <xiaowei.bao@....com>,
        bhelgaas@...gle.com, devicetree@...r.kernel.org,
        Leo Li <leoyang.li@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-pci@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        lorenzo.pieralisi@....com, mark.rutland@....com,
        "M.h. Lian" <minghuan.lian@....com>,
        Mingkai Hu <mingkai.hu@....com>, robh+dt@...nel.org,
        Roy Zang <roy.zang@....com>
Subject: Re: [PATCH v6 2/3] arm64: dts: ls1028a: Add PCIe controller DT nodes

Am 2020-02-24 10:22, schrieb Z.q. Hou:
> Hi Michael and Shawn,
> 
> I'll update the patch with iommu-map property.

friendly ping :)

-michael

> 
> Thanks,
> Zhiqiang
> 
>> -----Original Message-----
>> From: Michael Walle <michael@...le.cc>
>> Sent: 2020年2月24日 16:54
>> To: Shawn Guo <shawnguo@...nel.org>
>> Cc: Xiaowei Bao <xiaowei.bao@....com>; Z.q. Hou
>> <zhiqiang.hou@....com>; bhelgaas@...gle.com;
>> devicetree@...r.kernel.org; Leo Li <leoyang.li@....com>;
>> linux-arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org;
>> linux-pci@...r.kernel.org; linuxppc-dev@...ts.ozlabs.org;
>> lorenzo.pieralisi@....com; mark.rutland@....com; M.h. Lian
>> <minghuan.lian@....com>; Mingkai Hu <mingkai.hu@....com>;
>> robh+dt@...nel.org; Roy Zang <roy.zang@....com>
>> Subject: Re: [PATCH v6 2/3] arm64: dts: ls1028a: Add PCIe controller 
>> DT
>> nodes
>> 
>> Hi Shawn, all,
>> 
>> Am 2020-02-24 09:43, schrieb Shawn Guo:
>> > On Mon, Feb 24, 2020 at 09:11:05AM +0100, Michael Walle wrote:
>> >> Hi Xiaowei, Hi Shawn,
>> >>
>> >> > LS1028a implements 2 PCIe 3.0 controllers.
>> >>
>> >> Patch 1/3 and 3/3 are in Linus' tree but nobody seems to care about
>> >> this patch anymore :(
>> >>
>> >> This doesn't work well with the IOMMU, because the iommu-map property
>> >> is missing. The bootloader needs the &smmu phandle to fixup the
>> >> entry.
>> >> See
>> >> below.
>> >>
>> >> Shawn, will you add this patch to your tree once its fixed,
>> >> considering it just adds the device tree node for the LS1028A?
>> >
>> > The patch/thread is a bit aged.  You may want to send an updated patch
>> > for discussion.
>> 
>> So should I just pick up the patch add my two fixes and send it again?
>> What about
>> the Signed-off-by tags? Leave them? Replace them? Add mine?
>> 
>> -michael