linux-kernel - Re: [PATCH v5 0/6] Add SiFive FU740 PCIe host controller driver support

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Date:   Fri, 23 Apr 2021 10:39:15 +0100
From:   Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To:     Greentime Hu <greentime.hu@...ive.com>
Cc:     Palmer Dabbelt <palmer@...belt.com>, jh80.chung@...sung.com,
        Zong Li <zong.li@...ive.com>, robh+dt@...nel.org,
        vidyas@...dia.com, alex.dewar90@...il.com,
        Erik Danie <erik.danie@...ive.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-clk@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        Michael Turquette <mturquette@...libre.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Stephen Boyd <sboyd@...nel.org>,
        hayashi.kunihiko@...ionext.com, hes@...ive.com,
        khilman@...libre.com, Philipp Zabel <p.zabel@...gutronix.de>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Bjorn Helgaas <helgaas@...nel.org>, devicetree@...r.kernel.org,
        Paul Walmsley <paul.walmsley@...ive.com>
Subject: Re: [PATCH v5 0/6] Add SiFive FU740 PCIe host controller driver
 support

On Fri, Apr 23, 2021 at 02:00:46PM +0800, Greentime Hu wrote:
> Palmer Dabbelt <palmer@...belt.com> 於 2021年4月23日 週五 下午1:10寫道：
> >
> > On Thu, 22 Apr 2021 21:43:03 PDT (-0700), Palmer Dabbelt wrote:
> > > On Sun, 11 Apr 2021 19:37:50 PDT (-0700), greentime.hu@...ive.com wrote:
> > >> Lorenzo Pieralisi <lorenzo.pieralisi@....com> 於 2021年4月9日 週五 下午4:54寫道：
> > >>>
> > >>> On Tue, 6 Apr 2021 17:26:28 +0800, Greentime Hu wrote:
> > >>> > This patchset includes SiFive FU740 PCIe host controller driver. We also
> > >>> > add pcie_aux clock and pcie_power_on_reset controller to prci driver for
> > >>> > PCIe driver to use it.
> > >>> >
> > >>> > This is tested with e1000e: Intel(R) PRO/1000 Network Card, AMD Radeon R5
> > >>> > 230 graphics card and SP M.2 PCIe Gen 3 SSD in SiFive Unmatched based on
> > >>> > v5.11 Linux kernel.
> > >>> >
> > >>> > [...]
> > >>>
> > >>> Applied to pci/dwc [dropped patch 6], thanks!
> > >>>
> > >>> [1/6] clk: sifive: Add pcie_aux clock in prci driver for PCIe driver
> > >>>       https://git.kernel.org/lpieralisi/pci/c/f3ce593b1a
> > >>> [2/6] clk: sifive: Use reset-simple in prci driver for PCIe driver
> > >>>       https://git.kernel.org/lpieralisi/pci/c/0a78fcfd3d
> > >>> [3/6] MAINTAINERS: Add maintainers for SiFive FU740 PCIe driver
> > >>>       https://git.kernel.org/lpieralisi/pci/c/8bb1c66a90
> > >>> [4/6] dt-bindings: PCI: Add SiFive FU740 PCIe host controller
> > >>>       https://git.kernel.org/lpieralisi/pci/c/b86d55c107
> > >>> [5/6] PCI: fu740: Add SiFive FU740 PCIe host controller driver
> > >>>       https://git.kernel.org/lpieralisi/pci/c/327c333a79
> > >>>
> > >>> Thanks,
> > >>> Lorenzo
> > >>
> > >> Hi Palmer,
> > >>
> > >> Since the PCIE driver has been applied, would you please pick patch 6
> > >> to RISC-V for-next tree?
> > >> Thank you. :)
> > >
> > > Sorry, I got this confused between the Linux patch set and the u-boot
> > > patch set so I thought more versions of this had kept comming.  The DT
> > > is on for-next now.
> >
> > I spoke too soon: this actually dosn't even build for me.  It's the
> > "clocks = <&prci PRCI_CLK_PCIE_AUX>;" line
> >
> >     Error: arch/riscv/boot/dts/sifive/fu740-c000.dtsi:319.20-21 syntax error
> >     FATAL ERROR: Unable to parse input tree
> >     make[2]: *** [scripts/Makefile.lib:336: arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dtb] Error 1
> >     make[1]: *** [scripts/Makefile.build:514: arch/riscv/boot/dts/sifive] Error 2
> >     make: *** [Makefile:1388: dtbs] Error 2
> >     make: *** Waiting for unfinished jobs....
> >
> > I'm not sure what the issue is, I see an anchor for "prci".  Do you mind
> > sending along a new version that compiles on top of for-next?  If I need
> > the definiton of PRCI_CLK_PCIE_AUX from a PCIe tree then it's probably
> > best to just keep the DTS along with the rest of the patches.  IIRC I
> > alredy Acked it, but just to be clear
> >
> > Acked-by: Palmer Dabbelt <palmerdabbelt@...gle.com>
> >
> > Thanks!
> 
> Thank you, Palmer.
> It is defined in the first commit of this patchset. "clk: sifive: Add
> pcie_aux clock in prci driver for PCIe driver"
> You can select these whole 6 patches to make sure it can be built.
> 
> Hi Lorenzo,
> Would you mind to pick the 6th patch along with the other 5 patches?
> Thank you.

Done, on my pci/dwc branch.

Thanks,
Lorenzo