linux-kernel - Re: [PATCH v4 00/10] Add support for Renesas RZ/Five SoC

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Date:   Tue, 20 Sep 2022 21:43:14 +0100
From:   "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To:     Conor Dooley <conor@...nel.org>
Cc:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Conor Dooley <conor.dooley@...rochip.com>,
        Heiko Stuebner <heiko@...ech.de>,
        Heinrich Schuchardt <heinrich.schuchardt@...onical.com>,
        Atish Patra <atishp@...osinc.com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-renesas-soc@...r.kernel.org,
        Biju Das <biju.das.jz@...renesas.com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH v4 00/10] Add support for Renesas RZ/Five SoC

Hi Conor,

Thank you for the review.

On Tue, Sep 20, 2022 at 8:38 PM Conor Dooley <conor@...nel.org> wrote:
>
> On Tue, Sep 20, 2022 at 09:24:05PM +0200, Geert Uytterhoeven wrote:
> > Hi Conor,
> >
> > On Tue, Sep 20, 2022 at 9:20 PM Conor Dooley <conor@...nel.org> wrote:
> > > On Tue, Sep 20, 2022 at 07:48:54PM +0100, Prabhakar wrote:
> > > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> > > > The RZ/Five microprocessor includes a RISC-V CPU Core (AX45MP Single)
> > > > 1.0 GHz, 16-bit DDR3L/DDR4 interface. And it also has many interfaces such
> > > > as Gbit-Ether, CAN, and USB 2.0, making it ideal for applications such as
> > > > entry-class social infrastructure gateway control and industrial gateway
> > > > control.
> > > >
> > > > This patch series adds initial SoC DTSi support for Renesas RZ/Five
> > > > (R9A07G043) SoC and updates the bindings for the same. Below is the list
> > > > of IP blocks added in the initial SoC DTSI which can be used to boot via
> > > > initramfs on RZ/Five SMARC EVK:
> > > > - AX45MP CPU
> > > > - CPG
> > > > - PINCTRL
> > > > - PLIC
> > > > - SCIF0
> > > > - SYSC
> > >
> > > Ran into one complaint from dtbs_check:
> > > arch/riscv/boot/dts/renesas/r9a07g043f01-smarc.dtb: usb-phy@...50200: '#phy-cells' is a required property
> > >         From schema: /home/conor/.local/lib/python3.10/site-packages/dtschema/schemas/phy/phy-provider.yaml
> > > arch/riscv/boot/dts/renesas/r9a07g043f01-smarc.dtb: usb-phy@...70200: '#phy-cells' is a required property
> > >         From schema: /home/conor/.local/lib/python3.10/site-packages/dtschema/schemas/phy/phy-provider.yaml
> > >
> > > Other than that which should be a trivial fix the whole lot looks good
> > > to me...
> >
> > That's due to the placeholders...
>
> Right, but #phy-cells will be added into the usb-phys once you (plural)
> figure out how to integrate with the existing CMO stuff?
>
Yes indeed.

> > Currently it is not yet a requirement that "make dtbs_check" is warning-free.
>
> I was really hoping that it could be a requirement for 6.1 onwards. I've
> managed to clear all of the other ones from arch/riscv.
>
Maybe i'll fix it and respin the series (along with the Kconfig.socs sorted).

Cheers,
Prabhakar