Re: [PATCH 1/3] dt-bindings: hwmon: Add IBM OCC bindings

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On 02/08/2022 21:46, Eddie James wrote:
> These bindings describe the POWER processor On Chip Controller accessed
> from a service processor or baseboard management controller (BMC).
> 
> Signed-off-by: Eddie James <eajames@xxxxxxxxxxxxx>
> ---
>  .../bindings/hwmon/ibm,occ-hmwon.yaml         | 40 +++++++++++++++++++
>  1 file changed, 40 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/hwmon/ibm,occ-hmwon.yaml
> 
> diff --git a/Documentation/devicetree/bindings/hwmon/ibm,occ-hmwon.yaml b/Documentation/devicetree/bindings/hwmon/ibm,occ-hmwon.yaml
> new file mode 100644
> index 000000000000..8f8c3b8d7129
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/ibm,occ-hmwon.yaml
> @@ -0,0 +1,40 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/hwmon/ibm,occ-hwmon.yaml#

typo here

Does not look like you tested the bindings. Please run `make
dt_binding_check` (see
Documentation/devicetree/bindings/writing-schema.rst for instructions).

> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: IBM On-Chip Controller (OCC) accessed from a service processor
> +
> +maintainers:
> +  - Eddie James <eajames@xxxxxxxxxxxxx>
> +
> +description: |
> +  This binding describes a POWER processor On-Chip Controller (OCC)

s/This binding describes a//
But instead describe the hardware. What is the OCC?

> +  accessed from a service processor or baseboard management controller
> +  (BMC).
> +
> +properties:
> +  compatible:
> +    enum:
> +      - ibm,p9-occ-hwmon
> +      - ibm,p10-occ-hwmon
> +
> +  ibm,inactive-on-init:
> +    description: This property describes whether or not the OCC should
> +      be marked as active during device initialization. The alternative
> +      is for user space to mark the device active based on higher level
> +      communications between the BMC and the host processor.

I find the combination property name with this description confusing. It
sounds like init of OCC and somehow it should be inactive? I assume if
you initialize device, it is active. Or maybe the "init" is of something
else? What is more, non-negation is easier to understand, so rather
"ibm,active-on-boot" (or something like that).

> +    type: boolean
> +
> +required:
> +  - compatible
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    occ-hmwon {

just "hwmon"

> +        compatible = "ibm,p9-occ-hwmon";
> +        ibm,inactive-on-init;
> +    };


Best regards,
Krzysztof



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