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

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Date:   Tue, 18 Jul 2023 20:38:36 +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

On Tue, Jul 18, 2023 at 06:01:37PM +0200, Sebastian Reichel wrote:
> Hi Liviu,
> 
> 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:
> > > Add both PCIe3 controllers together with the shared PHY.
> > > 
> > > Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com>
> > > ---
> > >  arch/arm64/boot/dts/rockchip/rk3588.dtsi | 120 +++++++++++++++++++++++
> > >  1 file changed, 120 insertions(+)
> > > 
> > > diff --git a/arch/arm64/boot/dts/rockchip/rk3588.dtsi b/arch/arm64/boot/dts/rockchip/rk3588.dtsi
> > > index 88d702575db2..8f210f002fac 100644
> > > --- a/arch/arm64/boot/dts/rockchip/rk3588.dtsi
> > > +++ b/arch/arm64/boot/dts/rockchip/rk3588.dtsi
> > > @@ -7,6 +7,11 @@
> > >  #include "rk3588-pinctrl.dtsi"
> > >  
> > >  / {
> > > +	pcie30_phy_grf: syscon@...b8000 {
> > > +		compatible = "rockchip,rk3588-pcie3-phy-grf", "syscon";
> > > +		reg = <0x0 0xfd5b8000 0x0 0x10000>;
> > > +	};
> > > +
> > >  	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.

Best regards,
Liviu

> 
> -- Sebastian



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