linux-kernel - Re: [PATCH 1/3] dt-bindings: pci: ti,j721e: Fix "ti,syscon-pcie-ctrl" to take argument

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Message-ID: <20201118211139.GA1815279@bogus>
Date:   Wed, 18 Nov 2020 15:11:39 -0600
From:   Rob Herring <robh@...nel.org>
To:     Kishon Vijay Abraham I <kishon@...com>
Cc:     Tero Kristo <t-kristo@...com>, Nishanth Menon <nm@...com>,
        Tom Joseph <tjoseph@...ence.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        linux-omap@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] dt-bindings: pci: ti,j721e: Fix
 "ti,syscon-pcie-ctrl" to take argument

On Mon, Nov 16, 2020 at 11:01:39PM +0530, Kishon Vijay Abraham I wrote:
> Fix binding documentation of "ti,syscon-pcie-ctrl" to take phandle with
> argument. The argument is the register offset within "syscon" used to
> configure PCIe controller.
> 
> Link: Link: http://lore.kernel.org/r/CAL_JsqKiUcO76bo1GoepWM1TusJWoty_BRy2hFSgtEVMqtrvvQ@mail.gmail.com

Link: Link: ?

AIUI, 'Link' is supposed to be a link to this patch. I guess more than 1 
Link would be okay though.

> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
> ---
>  .../devicetree/bindings/pci/ti,j721e-pci-ep.yaml     | 12 ++++++++----
>  .../devicetree/bindings/pci/ti,j721e-pci-host.yaml   | 12 ++++++++----
>  2 files changed, 16 insertions(+), 8 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml b/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml
> index 3ae3e1a2d4b0..e9685c0bdc3e 100644
> --- a/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml
> +++ b/Documentation/devicetree/bindings/pci/ti,j721e-pci-ep.yaml
> @@ -29,9 +29,13 @@ properties:
>        - const: mem
>  
>    ti,syscon-pcie-ctrl:
> -    description: Phandle to the SYSCON entry required for configuring PCIe mode
> -                 and link speed.
> -    $ref: /schemas/types.yaml#/definitions/phandle
> +    allOf:

You no longer need allOf here.

> +      - $ref: /schemas/types.yaml#/definitions/phandle-array
> +      - items:
> +          - items:
> +            - description: Phandle to the SYSCON entry
> +            - description: pcie_ctrl register offset within SYSCON
> +    description: Specifier for configuring PCIe mode and link speed.
>  
>    power-domains:
>      maxItems: 1
> @@ -80,7 +84,7 @@ examples:
>                   <0x00 0x0d000000 0x00 0x00800000>,
>                   <0x00 0x10000000 0x00 0x08000000>;
>             reg-names = "intd_cfg", "user_cfg", "reg", "mem";
> -           ti,syscon-pcie-ctrl = <&pcie0_ctrl>;
> +           ti,syscon-pcie-ctrl = <&pcie0_ctrl 0x4070>;
>             max-link-speed = <3>;
>             num-lanes = <2>;
>             power-domains = <&k3_pds 239 TI_SCI_PD_EXCLUSIVE>;
> diff --git a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
> index ee7a8eade3f6..a3b82992bcfa 100644
> --- a/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
> +++ b/Documentation/devicetree/bindings/pci/ti,j721e-pci-host.yaml
> @@ -29,9 +29,13 @@ properties:
>        - const: cfg
>  
>    ti,syscon-pcie-ctrl:
> -    description: Phandle to the SYSCON entry required for configuring PCIe mode
> -      and link speed.
> -    $ref: /schemas/types.yaml#/definitions/phandle
> +    allOf:
> +      - $ref: /schemas/types.yaml#/definitions/phandle-array
> +      - items:
> +          - items:
> +            - description: Phandle to the SYSCON entry
> +            - description: pcie_ctrl register offset within SYSCON
> +    description: Specifier for configuring PCIe mode and link speed.
>  
>    power-domains:
>      maxItems: 1
> @@ -90,7 +94,7 @@ examples:
>                    <0x00 0x0d000000 0x00 0x00800000>,
>                    <0x00 0x10000000 0x00 0x00001000>;
>              reg-names = "intd_cfg", "user_cfg", "reg", "cfg";
> -            ti,syscon-pcie-ctrl = <&pcie0_ctrl>;
> +            ti,syscon-pcie-ctrl = <&pcie0_ctrl 0x4070>;
>              max-link-speed = <3>;
>              num-lanes = <2>;
>              power-domains = <&k3_pds 239 TI_SCI_PD_EXCLUSIVE>;
> -- 
> 2.17.1
>