linux-kernel - RE: [PATCH v6 07/11] dt-bindings: PCI: rcar: Add bindings for R-Car PCIe endpoint controller

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Message-ID: <TYAPR01MB4544E4658654491BECD7561AD8C70@TYAPR01MB4544.jpnprd01.prod.outlook.com>
Date:   Fri, 3 Apr 2020 08:28:04 +0000
From:   Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
To:     Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Marek Vasut <marek.vasut+renesas@...il.com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
CC:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Murray <andrew.murray@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-renesas-soc@...r.kernel.org" 
        <linux-renesas-soc@...r.kernel.org>,
        Chris Paterson <Chris.Paterson2@...esas.com>,
        Frank Rowand <frowand.list@...il.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Jingoo Han <jingoohan1@...il.com>,
        Simon Horman <horms@...ge.net.au>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Tom Joseph <tjoseph@...ence.com>,
        Heiko Stuebner <heiko@...ech.de>,
        "linux-rockchip@...ts.infradead.org" 
        <linux-rockchip@...ts.infradead.org>,
        Lad Prabhakar <prabhakar.csengg@...il.com>,
        Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: RE: [PATCH v6 07/11] dt-bindings: PCI: rcar: Add bindings for R-Car
 PCIe endpoint controller

Hi Prabhakar-san,

Thank you for your patch!

> From: Lad Prabhakar, Sent: Friday, April 3, 2020 4:39 AM
<snip>
> diff --git a/Documentation/devicetree/bindings/pci/rcar-pci-ep.yaml
> b/Documentation/devicetree/bindings/pci/rcar-pci-ep.yaml
> new file mode 100644
> index 000000000000..07cd5a7325d0
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pci/rcar-pci-ep.yaml
> @@ -0,0 +1,76 @@
> +# SPDX-License-Identifier: GPL-2.0

I'm sorry I should have mentioned in the previous review.
This is better like the following.

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

https://patchwork.kernel.org/patch/11459267/#23246825

<snip>
> +examples:
> +  - |
> +    #include <dt-bindings/clock/r8a774c0-cpg-mssr.h>
> +    #include <dt-bindings/power/r8a774c0-sysc.h>
> +
> +     pcie0_ep: pcie-ep@...00000 {
> +            compatible = "renesas,r8a774c0-pcie-ep",
> +                         "renesas,rcar-gen3-pcie-ep";
> +            reg = <0 0xfe000000 0 0x80000>,
> +                  <0x0 0xfe100000 0 0x100000>,
> +                  <0x0 0xfe200000 0 0x200000>,
> +                  <0x0 0x30000000 0 0x8000000>,
> +                  <0x0 0x38000000 0 0x8000000>;

Examples are built with #{address,size}-cells = <1>, so

            reg = <0xfe000000 0x80000>,
                  <0xfe100000 0x100000>,
                  <0xfe200000 0x200000>,
                  <0x30000000 0x8000000>,
                  <0x38000000 0x8000000>;

https://patchwork.kernel.org/patch/11459267/#23246825

Best regards,
Yoshihiro Shimoda