linux-kernel - Re: [PATCH V4 03/10] dt-bindings: timestamp: Deprecate nvidia,slices property

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Date:   Sat, 25 Mar 2023 12:05:53 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Dipen Patel <dipenp@...dia.com>, thierry.reding@...il.com,
        jonathanh@...dia.com, linux-kernel@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-gpio@...r.kernel.org,
        linus.walleij@...aro.org, devicetree@...r.kernel.org,
        linux-doc@...r.kernel.org, robh+dt@...nel.org,
        timestamp@...ts.linux.dev, krzysztof.kozlowski+dt@...aro.org,
        brgl@...ev.pl, corbet@....net, gregkh@...uxfoundation.org
Subject: Re: [PATCH V4 03/10] dt-bindings: timestamp: Deprecate nvidia,slices
 property

On 23/03/2023 02:29, Dipen Patel wrote:
> The property is not necessary as it is a constant value and can be
> hardcoded in the driver code.
> 
> Signed-off-by: Dipen Patel <dipenp@...dia.com>
> ---
>  .../timestamp/nvidia,tegra194-hte.yaml        | 43 ++-----------------
>  1 file changed, 4 insertions(+), 39 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml b/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml
> index 158dbe58c49f..eafc33e9ae2e 100644
> --- a/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml
> +++ b/Documentation/devicetree/bindings/timestamp/nvidia,tegra194-hte.yaml
> @@ -42,10 +42,13 @@ properties:
>  
>    nvidia,slices:
>      $ref: /schemas/types.yaml#/definitions/uint32
> +    deprecated: true
>      description:
>        HTE lines are arranged in 32 bit slice where each bit represents different
>        line/signal that it can enable/configure for the timestamp. It is u32
> -      property and the value depends on the HTE instance in the chip.
> +      property and the value depends on the HTE instance in the chip. The AON
> +      GTE instances for both Tegra194 and Tegra234 has 3 slices. The Tegra194
> +      LIC instance has 11 slices and Tegra234 LIC has 17 slices.
>      enum: [3, 11, 17]
>  
>    '#timestamp-cells':
> @@ -56,46 +59,10 @@ properties:
>        mentioned in the nvidia GPIO device tree binding document.
>      const: 1
>  
> -allOf:
> -  - if:
> -      properties:
> -        compatible:
> -          contains:
> -            enum:
> -              - nvidia,tegra194-gte-aon
> -              - nvidia,tegra234-gte-aon
> -    then:
> -      properties:
> -        nvidia,slices:
> -          const: 3
> -
> -  - if:
> -      properties:
> -        compatible:
> -          contains:
> -            enum:
> -              - nvidia,tegra194-gte-lic
> -    then:
> -      properties:
> -        nvidia,slices:
> -          const: 11
> -
> -  - if:
> -      properties:
> -        compatible:
> -          contains:
> -            enum:
> -              - nvidia,tegra234-gte-lic
> -    then:
> -      properties:
> -        nvidia,slices:
> -          const: 17

You just added this entire block in previous patch. Adding it there and
immediately removing does not make much sense.
> -



Best regards,
Krzysztof