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Date:   Tue, 16 May 2023 13:00:57 +0100
From:   Conor Dooley <conor.dooley@microchip.com>
To:     Claudiu Beznea <claudiu.beznea@microchip.com>
CC:     <mturquette@baylibre.com>, <sboyd@kernel.org>,
        <robh+dt@kernel.org>, <krzysztof.kozlowski+dt@linaro.org>,
        <nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
        <linux-clk@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v4 2/5] dt-bindings: clocks: atmel,at91rm9200-pmc:
 convert to yaml
Message-ID: <20230516-modulator-reason-1d3a754c6dd7@wendy>
References: <20230516051836.2511149-1-claudiu.beznea@microchip.com>
 <20230516051836.2511149-3-claudiu.beznea@microchip.com>
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Hey Claudiu,

On Tue, May 16, 2023 at 08:18:33AM +0300, Claudiu Beznea wrote:
> Convert Atmel PMC documentation to yaml. Along with it clock names
> were adapted according to the current available device trees as
> different controller versions accept different clock (some of them
> have 3 clocks as input, some has 2 clocks as inputs and some with 2
> input clocks uses different clock names).
> diff --git a/Documentation/devicetree/bindings/clock/atmel,at91rm9200-pmc.yaml b/Documentation/devicetree/bindings/clock/atmel,at91rm9200-pmc.yaml
> new file mode 100644
> index 000000000000..e5f514bc4bf7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/clock/atmel,at91rm9200-pmc.yaml
> @@ -0,0 +1,153 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/clock/atmel,at91rm9200-pmc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Atmel Power Management Controller (PMC)
> +
> +maintainers:
> +  - Claudiu Beznea <claudiu.beznea@microchip.com>
> +
> +description:
> +  The power management controller optimizes power consumption by controlling all
> +  system and user peripheral clocks. The PMC enables/disables the clock inputs
> +  to many of the peripherals and to the processor.
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - const: atmel,at91sam9g20-pmc
> +          - const: atmel,at91sam9260-pmc
> +          - const: syscon
> +      - items:
> +          - enum:
> +              - atmel,at91sam9g15-pmc
> +              - atmel,at91sam9g25-pmc
> +              - atmel,at91sam9g35-pmc
> +              - atmel,at91sam9x25-pmc
> +              - atmel,at91sam9x35-pmc
> +          - const: atmel,at91sam9x5-pmc

Yet another combinations question for you...
With this binding the following is not possible:

"atmel,at91sam9x5-pmc", "syscon"

Is that intended?
I notice "atmel,at91sam9260-pmc" is able to appear as:

"atmel,at91sam9260-pmc", "syscon"

So the inconsistency stands out.

> +          - const: syscon
> +      - items:
> +          - enum:
> +              - atmel,at91rm9200-pmc
> +              - atmel,at91sam9260-pmc
> +              - atmel,at91sam9g45-pmc
> +              - atmel,at91sam9n12-pmc
> +              - atmel,at91sam9rl-pmc
> +              - atmel,sama5d2-pmc
> +              - atmel,sama5d3-pmc
> +              - atmel,sama5d4-pmc
> +              - microchip,sam9x60-pmc
> +              - microchip,sama7g5-pmc
> +          - const: syscon

Otherwise, this looks grand to me.

Cheers,
Conor.

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