linux-kernel - Aw: Re: [RFC/RFT 2/6] dt-bindings: soc: grf: add pcie30-{phy,pipe}-grf

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Message-ID: <trinity-c60358c4-ebd1-47bf-91e0-9ae0beefd39f-1650389348418@3c-app-gmx-bap70>
Date:   Tue, 19 Apr 2022 19:29:08 +0200
From:   Frank Wunderlich <frank-w@...lic-files.de>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Frank Wunderlich <linux@...web.de>,
        linux-rockchip@...ts.infradead.org,
        Kishon Vijay Abraham I <kishon@...com>,
        Vinod Koul <vkoul@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Johan Jonker <jbx6244@...il.com>,
        Peter Geis <pgwipeout@...il.com>,
        Michael Riesch <michael.riesch@...fvision.net>,
        linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-pci@...r.kernel.org
Subject: Aw: Re: [RFC/RFT 2/6] dt-bindings: soc: grf: add
 pcie30-{phy,pipe}-grf

> Gesendet: Montag, 18. April 2022 um 17:54 Uhr
> Von: "Krzysztof Kozlowski" <krzysztof.kozlowski@...aro.org>

> > --- a/Documentation/devicetree/bindings/soc/rockchip/grf.yaml
> > +++ b/Documentation/devicetree/bindings/soc/rockchip/grf.yaml
> > @@ -14,6 +14,8 @@ properties:
> >      oneOf:
> >        - items:
> >            - enum:
> > +              - rockchip,pcie30-phy-grf
> > +              - rockchip,pcie30-pipe-grf
>
> These are without SoC parts. Are these PCIe v3 General Register Files
> part of some PCIe spec?

imho they are shared across SoCs rk3568 and rk3588, but have only seen rk3568 implementation yet.
PCIe driver currently supports these 2 Soc (different offsets in the Phy-GRF), but can only test rk3568.

pipe-grf seems only be used for rk35688 (offset used in probe is defined for this SoC), which i cannot test.

so i have left them SoC independed.

> >                - rockchip,rk3288-sgrf
> >                - rockchip,rk3566-pipe-grf
> >                - rockchip,rk3568-usb2phy-grf

regards Frank