linux-kernel - Re: [PATCH v3 2/3] dt-bindings: fpga: Add binding doc for versal fpga manager

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Date:   Mon, 8 Mar 2021 13:19:44 -0700
From:   Rob Herring <robh@...nel.org>
To:     Nava kishore Manne <nava.manne@...inx.com>
Cc:     mdf@...nel.org, trix@...hat.com, michal.simek@...inx.com,
        gregkh@...uxfoundation.org, jolly.shah@...inx.com,
        rajan.vaja@...inx.com, arnd@...db.de, manish.narani@...inx.com,
        amit.sunil.dhamne@...inx.com, tejas.patel@...inx.com,
        linux-fpga@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        chinnikishore369@...il.com,
        Appana Durga Kedareswara rao <appana.durga.rao@...inx.com>
Subject: Re: [PATCH v3 2/3] dt-bindings: fpga: Add binding doc for versal
 fpga manager

On Thu, Mar 04, 2021 at 12:32:23PM +0530, Nava kishore Manne wrote:
> From: Appana Durga Kedareswara rao <appana.durga.rao@...inx.com>
> 
> This patch adds binding doc for versal fpga manager driver.

Why do you need a DT entry for this? Can't the Versal firmware driver 
instantiate the fpga-mgr device?

> 
> Signed-off-by: Nava kishore Manne <nava.manne@...inx.com>
> Signed-off-by: Appana Durga Kedareswara rao <appana.durga.rao@...inx.com>
> ---
> Changes for v2:
>                 -Fixed file format and syntax issues.
> Changes for v3:
>                 -Removed unwated extra spaces.
> 
>  .../bindings/fpga/xlnx,versal-fpga.yaml       | 33 +++++++++++++++++++
>  1 file changed, 33 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/fpga/xlnx,versal-fpga.yaml
> 
> diff --git a/Documentation/devicetree/bindings/fpga/xlnx,versal-fpga.yaml b/Documentation/devicetree/bindings/fpga/xlnx,versal-fpga.yaml
> new file mode 100644
> index 000000000000..fec6144766fe
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/fpga/xlnx,versal-fpga.yaml
> @@ -0,0 +1,33 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/fpga/xlnx,versal-fpga.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Xilinx Versal FPGA driver.
> +
> +maintainers:
> +  - Nava kishore Manne <nava.manne@...inx.com>
> +
> +description: |
> +  Device Tree Versal FPGA bindings for the Versal SoC, controlled
> +  using firmware interface.
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - xlnx,versal-fpga
> +
> +required:
> +  - compatible
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    versal_fpga: fpga {
> +         compatible = "xlnx,versal-fpga";
> +    };
> +
> +...
> -- 
> 2.18.0
>