linux-kernel - Re: [PATCH v2 4/8] dt-bindings: timer: Add schema for realtek,otto-timer

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Message-ID: <d65648d6-4e2b-4009-b0e0-7d1f9a926eb7@kernel.org>
Date: Mon, 24 Jun 2024 06:49:43 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Chris Packham <chris.packham@...iedtelesis.co.nz>, tglx@...utronix.de,
 robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org,
 tsbogend@...ha.franken.de, daniel.lezcano@...aro.org, paulburton@...nel.org,
 peterz@...radead.org, mail@...ger-koblitz.de, bert@...t.com,
 john@...ozen.org, sander@...nheule.net
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 linux-mips@...r.kernel.org, kabel@...nel.org, ericwouds@...il.com
Subject: Re: [PATCH v2 4/8] dt-bindings: timer: Add schema for
 realtek,otto-timer

On 24/06/2024 03:22, Chris Packham wrote:
> Add the devicetree schema for the realtek,otto-timer present on a number
> of Realtek SoCs.
> 
> Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
> ---
> 
> Notes:
>     Changes in v2:
>     - Use specific compatible

Where? I do not see changes.

>     - Remove unnecessary label
>     - Remove unused irq flags (interrupt controller is one-cell)
>     - Set minItems for reg and interrupts based on compatible
> 
>  .../bindings/timer/realtek,otto-timer.yaml    | 66 +++++++++++++++++++
>  1 file changed, 66 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/timer/realtek,otto-timer.yaml
> 
> diff --git a/Documentation/devicetree/bindings/timer/realtek,otto-timer.yaml b/Documentation/devicetree/bindings/timer/realtek,otto-timer.yaml
> new file mode 100644
> index 000000000000..13ea7aa946fe
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/timer/realtek,otto-timer.yaml
> @@ -0,0 +1,66 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/timer/realtek,otto-timer.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Realtek Otto SoCs Timer/Counter
> +
> +description:
> +  Realtek SoCs support a number of timers/counters. These are used
> +  as a per CPU clock event generator and an overall CPU clocksource.
> +
> +maintainers:
> +  - Chris Packham <chris.packham@...iedtelesis.co.nz>
> +
> +properties:
> +  $nodename:
> +    pattern: "^timer@[0-9a-f]+$"
> +
> +  compatible:
> +    items:
> +      - enum:
> +          - realtek,rtl9302-timer
> +      - const: realtek,otto-timer
> +
> +  reg:
> +    maxItems: 5

Nothing improved.

> +
> +  clocks:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 5

Nothing improved.

> +
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: realtek,rtl9302-timer
> +    then:
> +      properties:
> +        reg:
> +          minItems: 2
> +        interrupts:
> +          minItems: 2

No, that's just incorrect. You do not have more than one variant, so it
is just 2 items. Or 5 items, not 2-5.


Best regards,
Krzysztof