linux-kernel - Re: [PATCH 1/3] dt-bindings: platform: microsoft: Document surface xbl

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Message-ID: <YXspvlVhvjSIuCxo@ripper>
Date:   Thu, 28 Oct 2021 15:52:46 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Jarrett Schultz <jaschultzms@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>, Andy Gross <agross@...nel.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <mgross@...ux.intel.com>,
        Maximilian Luz <luzmaximilian@...il.com>,
        linux-arm-msm@...r.kernel.org, platform-driver-x86@...r.kernel.org,
        linux-kernel@...r.kernel.org, Felipe Balbi <balbi@...nel.org>,
        Jarrett Schultz <jaschultz@...rosoft.com>
Subject: Re: [PATCH 1/3] dt-bindings: platform: microsoft: Document surface
 xbl

On Thu 28 Oct 14:17 PDT 2021, Jarrett Schultz wrote:

> Introduce yaml for surface xbl driver.
> 
> Signed-off-by: Jarrett Schultz <jaschultz@...rosoft.com>
> ---
>  .../platform/microsoft/surface-xbl.yaml       | 37 +++++++++++++++++++
>  1 file changed, 37 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/platform/microsoft/surface-xbl.yaml
> 
> diff --git a/Documentation/devicetree/bindings/platform/microsoft/surface-xbl.yaml b/Documentation/devicetree/bindings/platform/microsoft/surface-xbl.yaml
> new file mode 100644
> index 000000000000..3d2771322e72
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/platform/microsoft/surface-xbl.yaml
> @@ -0,0 +1,37 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/platform/microsoft/surface-xbl.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Surface Extensible Bootloader for Microsoft Surface Duo
> +
> +maintainers:
> +  - Jarrett Schultz <jaschultzMS@...il.com>
> +
> +description: |
> +  Exposes device information to user space.
> +
> +allOf:
> +  - $ref: /schemas/platform/microsoft/surface-xbl.c#
> +
> +properties:
> +  compatible:
> +    const: microsoft,sm8150-surface-duo-xbl
> +
> +  reg:
> +    maxItems: 1
> +
> +unevaluatedProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +examples:
> +  - |
> +    xbl@...bfa94 {
> +      compatible = "microsoft,sm8150-surface-duo-xbl";
> +      reg = <0x00 0x146bfa94 0x00 0x100>;

I believe this is in the middle of IMEM. If so it would be better to
describe the entire IMEM section in one block and then list this as one
of the pieces within.

Please see e.g. imem@...aa000 in sc7180.dtsi

Thanks,
Bjorn

> +    };
> -- 
> 2.25.1
>