linux-kernel - Re: [PATCH 5/8] PCI: rockchip: Added dtsi entry for PCIe endpoint controller

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Message-ID: <CAAEEuhpOjSUhiQFxKwkhiwDNtmRzzUXmGYKMuHWePJF-Q7R9dQ@mail.gmail.com>
Date:   Thu, 26 Jan 2023 16:30:48 +0100
From:   Rick Wertenbroek <rick.wertenbroek@...il.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     alberto.dassatti@...g-vd.ch, xxm@...k-chips.com,
        wenrui.li@...k-chips.com, rick.wertenbroek@...g-vd.ch,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jani Nikula <jani.nikula@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mikko Kovanen <mikko.kovanen@...amobile.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-pci@...r.kernel.org
Subject: Re: [PATCH 5/8] PCI: rockchip: Added dtsi entry for PCIe endpoint controller

On Thu, Jan 26, 2023 at 4:23 PM Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:
>
> On 26/01/2023 14:50, Rick Wertenbroek wrote:
> > Added missing PCIe endpoint controller entry in the device tree. This
> > entry is documented in :
> > Documentation/devicetree/bindings/pci/rockchip-pcie-ep.txt
>
> There is no such file

Sorry but the file exists see :
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/Documentation/devicetree/bindings/pci/rockchip-pcie-ep.txt?h=v6.0.19
It also exists in 6.1 :
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/Documentation/devicetree/bindings/pci/rockchip-pcie-ep.txt?h=linux-6.1.y

>
> > The status is disabled by default, so it will not be loaded unless
> > explicitly chosen to.
>
> Use subject prefixes matching the subsystem (which you can get for
> example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
> your patch is touching).
>

Sorry about this, you are right, I'll fix it for the next iteration.
Thank you

> >
> > Signed-off-by: Rick Wertenbroek <rick.wertenbroek@...il.com>
> > ---
> >  arch/arm64/boot/dts/rockchip/rk3399.dtsi | 25 ++++++++++++++++++++++++
> >  1 file changed, 25 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
> > index 9d5b0e8c9..5f7251118 100644
> > --- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
> > +++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
> > @@ -265,6 +265,31 @@ pcie0_intc: interrupt-controller {
> >               };
> >       };
> >
> > +     pcie0_ep: pcie-ep@...00000 {
> > +             compatible = "rockchip,rk3399-pcie-ep";
>
> reg is usually second property...
> > +             #address-cells = <3>;
> > +             #size-cells = <2>;
> Best regards,
> Krzysztof
>