linux-kernel - Re: [PATCH v2 2/2] arm64: dts: rockchip: rk3588: add PCIe3 support

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Message-ID: <ZLevvl+VKBxe1kQu@bart.dudau.co.uk>
Date:   Wed, 19 Jul 2023 10:41:18 +0100
From:   Liviu Dudau <liviu@...au.co.uk>
To:     Sebastian Reichel <sebastian.reichel@...labora.com>
Cc:     linux-phy@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
        Jingoo Han <jingoohan1@...il.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Rob Herring <robh@...nel.org>,
        Serge Semin <fancer.lancer@...il.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Simon Xue <xxm@...k-chips.com>, John Clark <inindev@...il.com>,
        Qu Wenruo <wqu@...e.com>, devicetree@...r.kernel.org,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, kernel@...labora.com
Subject: Re: [PATCH v2 2/2] arm64: dts: rockchip: rk3588: add PCIe3 support

Hi Sebastian,

On Tue, Jul 18, 2023 at 11:06:01PM +0200, Sebastian Reichel wrote:
> Hi,
> 
> On Tue, Jul 18, 2023 at 08:38:36PM +0100, Liviu Dudau wrote:
> > On Tue, Jul 18, 2023 at 06:01:37PM +0200, Sebastian Reichel wrote:
> > > On Tue, Jul 18, 2023 at 04:09:53PM +0100, Liviu Dudau wrote:
> > > > On Mon, Jul 17, 2023 at 07:35:12PM +0200, Sebastian Reichel wrote:
> > > > >  	pipe_phy1_grf: syscon@...c0000 {
> > > > >  		compatible = "rockchip,rk3588-pipe-phy-grf", "syscon";
> > > > >  		reg = <0x0 0xfd5c0000 0x0 0x100>;
> > > > 
> > > > What tree is based this on? Even after applying your PCIe2 series I don't have the above
> > > > node so the patch doesn't apply to mainline.
> > > 
> > > You are missing naneng-combphy support:
> > > 
> > > https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git/commit/?h=v6.6-armsoc/dts64&id=6ebd55b3bba383e0523b0c014f17c97f3ce80708
> > 
> > Thanks! It looks like the PCIe2 commit that adds support to rk3588(s).dtsi
> > files is also missing an #include <dt-bindings/phy/phy.h> for the PHY_TYPE_PCIE
> > use, otherwise the DTS fail to compile.
> 
> Yes, that's also already in linux-next:
> 
> https://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git/commit/?h=v6.6-armsoc/dts64&id=34d6c15d8e86256ef2456c604b1c8d8242720871

I'm reading that as: "relevant patch that this series depends on has already
been added to the tree that's going to pull this PCIe2 series so all will be
good". Otherwise I think there should be some mention in the cover letter
about dependencies, so that people like me don't report issues just because
they are not using the linux-rockchip tree by default.

Many thanks for the quick answers and the links to fix my tree.

Best regards,
Liviu

> 
> Greetings,
> 
> -- Sebastian



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