Re: [PATCH 3/5] PCI: rcar: Add R-Car PCIe endpoint device tree bindings

From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
To: Biju Das <biju.das@bp.renesas.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Magnus Damm <magnus.damm@gmail.com>,
	Kishon Vijay Abraham I <kishon@ti.com>,
	Marek Vasut <marek.vasut+renesas@gmail.com>,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Andrew Murray <andrew.murray@arm.com>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	"linux-renesas-soc@vger.kernel.org" 
	<linux-renesas-soc@vger.kernel.org>,
	Chris Paterson <Chris.Paterson2@renesas.com>,
	Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj@bp.renesas.com>
Subject: Re: [PATCH 3/5] PCI: rcar: Add R-Car PCIe endpoint device tree bindings
Date: Thu, 7 Nov 2019 08:10:09 +0000	[thread overview]
Message-ID: <CA+V-a8vJrJ8Rw5OgYZN7o_i1R9ZZUfmuMWnzA0PF+pZus0o1SQ@mail.gmail.com> (raw)
In-Reply-To: <OSBPR01MB210380ACAF35B2FE94F1589EB8780@OSBPR01MB2103.jpnprd01.prod.outlook.com>

Hi Biju,

Thank you for the review.

On Thu, Nov 7, 2019 at 7:39 AM Biju Das <biju.das@bp.renesas.com> wrote:
>
> Hi Prabhakar,
>
> Thanks for the patch
>
> > Subject: [PATCH 3/5] PCI: rcar: Add R-Car PCIe endpoint device tree bindings
> >
> > From: "Lad, Prabhakar" <prabhakar.mahadev-lad.rj@bp.renesas.com>
> >
> > This patch adds the bindings for the R-Car PCIe endpoint driver.
> >
> > Signed-off-by: Lad, Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > ---
> >  .../devicetree/bindings/pci/rcar-pci-ep.txt   | 43 +++++++++++++++++++
> >  1 file changed, 43 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/pci/rcar-pci-ep.txt
> >
> > diff --git a/Documentation/devicetree/bindings/pci/rcar-pci-ep.txt
> > b/Documentation/devicetree/bindings/pci/rcar-pci-ep.txt
> > new file mode 100644
> > index 000000000000..b8c8616ca007
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/pci/rcar-pci-ep.txt
> > @@ -0,0 +1,43 @@
> > +* Renesas R-Car PCIe Endpoint Controller DT description
> > +
> > +Required properties:
> > +         "renesas,pcie-ep-r8a774c0" for the R8A774C0 SoC;
> > +         "renesas,pcie-ep-rcar-gen3" for a generic R-Car Gen3 or
> > +                                  RZ/G2 compatible device.
> > +
> > +         When compatible with the generic version, nodes must list the
> > +         SoC-specific version corresponding to the platform first
> > +         followed by the generic version.
> > +
> > +- reg: Five register ranges as listed in the reg-names property
> > +- reg-names: Must include the following names
> > +     - "apb-base"
> > +     - "memory0"
> > +     - "memory1"
> > +     - "memory2"
> > +     - "memory3"
> > +- resets: Must contain phandles to PCIe-related reset lines exposed by IP
> > block
> > +- clocks: from common clock binding: clock specifiers for the PCIe controller
> > +      clock.
> > +- clock-names: from common clock binding: should be "pcie".
> > +
> > +Optional Property:
> > +- max-functions: Maximum number of functions that can be configured
> > (default 1).
> > +
> > +Example:
> > +
> > +SoC-specific DT Entry:
> > +
> > +     pcie_ep: pcie_ep@fe000000 {
> > +             compatible = "renesas,pcie-r8a7791", "renesas,pcie-rcar-
> > gen2";
>
> I believe it is currently tested on RZ/G2E. so please use the same.
>
Yes you are correct its tested on RZ/G2E board, ill fix it in next iteration.

Cheers,
--Prabhakar