linux-kernel - Re: [PATCH v2 1/2] dt-bindings: PCI: add UniPhier PCIe host controller description

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Message-ID: <20180925205502.GA12949@bogus>
Date:   Tue, 25 Sep 2018 15:55:02 -0500
From:   Rob Herring <robh@...nel.org>
To:     Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
Cc:     Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Mark Rutland <mark.rutland@....com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Masami Hiramatsu <masami.hiramatsu@...aro.org>,
        Jassi Brar <jaswinder.singh@...aro.org>
Subject: Re: [PATCH v2 1/2] dt-bindings: PCI: add UniPhier PCIe host
 controller description

On Thu, Sep 06, 2018 at 06:40:31PM +0900, Kunihiko Hayashi wrote:
> Add DT bindings for PCIe controller implemented in UniPhier SoCs when
> configured in Root Complex (host) mode. This controller is based on
> the DesignWare PCIe core.
> 
> Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
> ---
>  .../devicetree/bindings/pci/uniphier-pcie.txt      | 78 ++++++++++++++++++++++
>  1 file changed, 78 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pci/uniphier-pcie.txt
> 
> diff --git a/Documentation/devicetree/bindings/pci/uniphier-pcie.txt b/Documentation/devicetree/bindings/pci/uniphier-pcie.txt
> new file mode 100644
> index 0000000..a34e167
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pci/uniphier-pcie.txt
> @@ -0,0 +1,78 @@
> +Socionext UniPhier PCIe host controller bindings
> +
> +This describes the devicetree bindings for PCIe host controller implemented
> +on Socionext UniPhier SoCs.
> +
> +UniPhier PCIe host controller is based on the Synopsys DesignWare PCI core.
> +It shares common functions with the PCIe DesignWare core driver and inherits
> +common properties defined in
> +Documentation/devicetree/bindings/pci/designware-pcie.txt.
> +
> +Required properties:
> +- compatible: Should be "socionext,uniphier-pcie".
> +- reg: Specifies offset and length of the register set for the device.
> +	According to the reg-names, appropriate register sets are required.
> +- reg-names: Must include the following entries:
> +    "dbi"    - controller configuration registers
> +    "link"   - SoC-specific glue layer registers
> +    "config" - PCIe configuration space
> +- clocks: A phandle to the clock gate for PCIe glue layer including
> +	the host controller.
> +- resets: A phandle to the reset line for PCIe glue layer including
> +	the host controller.
> +- interrupts: A list of interrupt specifiers. According to the
> +	interrupt-names, appropriate interrupts are required.
> +- interrupt-names: Must include the following entries:
> +    "dma"    - DMA interrupt
> +    "msi"    - MSI interrupt
> +    "intx"   - Legacy INTA/B/C/D interrupt
> +
> +Optional properties:
> +- phys: A phandle to generic PCIe PHY. According to the phy-names, appropriate
> +	phys are required.
> +- phy-names: Must be "pcie-phy".
> +
> +Required sub-node:
> +- interrupt-controller: Specifies interrupt controller for legacy PCI
> +	interrupts. The node name isn't important.

No, it is important.

With that sentence removed,

Reviewed-by: Rob Herring <robh@...nel.org>