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From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Sergiu.Moga@microchip.com, lee@kernel.org, robh+dt@kernel.org,
	krzysztof.kozlowski+dt@linaro.org, Nicolas.Ferre@microchip.com,
	alexandre.belloni@bootlin.com, Claudiu.Beznea@microchip.com,
	radu_nicolae.pirea@upb.ro, richard.genoud@gmail.com,
	mturquette@baylibre.com, sboyd@kernel.org,
	gregkh@linuxfoundation.org, jirislaby@kernel.org,
	admin@hifiphile.com, Kavyasree.Kotagiri@microchip.com
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
	linux-clk@vger.kernel.org, linux-serial@vger.kernel.org
Subject: Re: [PATCH 2/5] dt-bindings: mfd: atmel,at91-usart: convert to json-schema
Date: Fri, 19 Aug 2022 11:41:40 +0300	[thread overview]
Message-ID: <aa659b2e-44cb-b2e2-eced-1ef7f5de5647@linaro.org> (raw)
In-Reply-To: <5fd68d8e-7132-2f58-0ef9-cd4a0fe45127@microchip.com>

On 19/08/2022 11:37, Sergiu.Moga@microchip.com wrote:

>>> +      - items:
>>> +          - const: atmel,at91rm9200-dbgu
>>> +          - const: atmel,at91rm9200-usart
>>> +      - items:
>>> +          - const: atmel,at91sam9260-dbgu
>>> +          - const: atmel,at91sam9260-usart
>>> +      - items:
>>> +          - const: microchip,sam9x60-dbgu
>>> +          - const: microchip,sam9x60-usart
>>> +      - items:
>>> +          - const: microchip,sam9x60-usart
>>> +          - const: atmel,at91sam9260-usart
>> This is not correct - contradicts earlier one.
>>
> 
> Yes, this was for a DT node we have internally, my bad. You are right, 
> it does not really make sense and it should not be the other way around: 
> having the DT validate the binding. I will remove this combination in 
> the next version.

You need to fix any out of tree DTS or upstream it.
> 
> 
>>> +      - items:
>>> +          - const: microchip,sam9x60-dbgu
>>> +          - const: microchip,sam9x60-usart
>>> +          - const: atmel,at91sam9260-dbgu
>>> +          - const: atmel,at91sam9260-usart
>> What? You wrote above that microchip,sam9x60-dbgu is compatible only
>> with microchip,sam9x60-usart. Now you write it is also compatible with
>> other ones?
> 
> 
> Yes, this one is intended because the 9x60 IP has new functionalities on 
> top of 9260, and some nodes do keep all four as fallback.

Then all nodes should keep fallbacks.

> 
> 
>>> +
>>> +  reg:
>>> +    maxItems: 1
>>> +
>>> +  interrupts:
>>> +    maxItems: 1
>>> +
>>> +  clock-names:
>>> +    contains:
>>> +      const: usart
>> No, this has to be specific/fixed list.
> 
> 
> I wanted to highlight the fact that it must contain either:
> clock-names = "usart";
> or
> clock-names = "usart", "gclk";
> 
> What would be the recommended way of doing this then?

We have an example for this.

https://elixir.bootlin.com/linux/v5.19/source/Documentation/devicetree/bindings/example-schema.yaml#L91


Best regards,
Krzysztof

  reply	other threads:[~2022-08-19  8:41 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-17  7:55 [PATCH 0/5] Make atmel serial driver aware of GCLK Sergiu Moga
2022-08-17  7:55 ` [PATCH 1/5] dt-bindings: mfd: atmel,sama5d2-flexcom: Add SPI child node ref binding Sergiu Moga
2022-08-18  8:31   ` Krzysztof Kozlowski
2022-08-17  7:55 ` [PATCH 2/5] dt-bindings: mfd: atmel,at91-usart: convert to json-schema Sergiu Moga
2022-08-18  8:38   ` Krzysztof Kozlowski
2022-08-19  8:37     ` Sergiu.Moga
2022-08-19  8:41       ` Krzysztof Kozlowski [this message]
2022-08-19  9:25     ` Sergiu.Moga
2022-08-19 12:06       ` Krzysztof Kozlowski
2022-08-18  8:39   ` Krzysztof Kozlowski
2022-08-19  8:38     ` Sergiu.Moga
2022-08-19  8:47       ` Krzysztof Kozlowski
2022-08-19  9:05         ` Krzysztof Kozlowski
2022-09-01 11:31           ` Eugen.Hristev
2022-09-05 10:10             ` Krzysztof Kozlowski
2022-09-05 14:37       ` Lee Jones
2022-09-05 15:22         ` Sergiu.Moga
2022-09-05 16:12           ` Krzysztof Kozlowski
2022-09-06 15:49             ` Lee Jones
2022-08-17  7:55 ` [PATCH 3/5] dt-bindings: mfd: atmel,sama5d2-flexcom: Add USART child node ref binding Sergiu Moga
2022-08-17  7:55 ` [PATCH 4/5] clk: at91: sama5d2: Add Generic Clocks for UART/USART Sergiu Moga
2022-08-26  7:03   ` Claudiu.Beznea
2022-08-30 22:23   ` Stephen Boyd
2022-08-31 14:47     ` Claudiu.Beznea
2022-08-17  7:55 ` [PATCH 5/5] tty: serial: atmel: Make the driver aware of the existence of GCLK Sergiu Moga
2022-08-30 17:29   ` Richard Genoud
2022-08-31  8:49     ` Sergiu.Moga
2022-08-31  9:46   ` Claudiu.Beznea
2022-08-31 11:32     ` Sergiu.Moga
2022-09-01  6:36       ` Claudiu.Beznea

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