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,
richard.genoud@gmail.com, radu_nicolae.pirea@upb.ro,
gregkh@linuxfoundation.org, broonie@kernel.org,
mturquette@baylibre.com, sboyd@kernel.org, jirislaby@kernel.org,
admin@hifiphile.com, Kavyasree.Kotagiri@microchip.com,
Tudor.Ambarus@microchip.com
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
linux-serial@vger.kernel.org, linux-clk@vger.kernel.org
Subject: Re: [PATCH v2 05/13] dt-bindings: serial: atmel,at91-usart: convert to json-schema
Date: Thu, 8 Sep 2022 18:05:47 +0200 [thread overview]
Message-ID: <17d142eb-80c1-0aa5-c4fa-a8e4ccd97f08@linaro.org> (raw)
In-Reply-To: <753d73d0-44b9-9fba-1ed8-53691ecf2ee7@microchip.com>
On 08/09/2022 17:27, Sergiu.Moga@microchip.com wrote:
> On 08.09.2022 18:10, Krzysztof Kozlowski wrote:
>> On 08/09/2022 17:06, Sergiu.Moga@microchip.com wrote:
>>> On 08.09.2022 15:29, Krzysztof Kozlowski wrote:
>>
>>>>> +required:
>>>>> + - compatible
>>>>> + - reg
>>>>> + - interrupts
>>>>> + - clock-names
>>>>> + - clocks
>>>>> +
>>>>> +allOf:
>>>>> + - if:
>>>>> + properties:
>>>>> + $nodename:
>>>>> + pattern: "^serial@[0-9a-f]+$"
>>>>
>>>> You should rather check value of atmel,usart-mode, because now you won't
>>>> properly match device nodes called "foobar". Since usart-mode has only
>>>> two possible values, this will nicely simplify you if-else.
>>>>
>>>>
>>>
>>>
>>> I did think of that but the previous binding specifies that
>>> atmel,usart-mode is required only for the SPI mode and it is optional
>>> for the USART mode. That is why I went for the node's regex since I
>>> thought it is something that both nodes would have.
>>
>> I think it should be explicit - you configure node either to this or
>> that, so the property should be always present.
>
>
>
> No DT of ours has that property atm, since they are all on USART mode by
> default. If I were to make it required. all nodes would fail so I would
> have to add it to each of them.
Which is a problem because...?
Have in mind that bindings can be changed. ABI here won't be broken.
>
>
>
>
>> The node name should not
>> be responsible for it, even though we want node names to match certain
>> patterns.
>>
>
>
> Does checkig for the node's pattern not make it better then? Since it
> imposes an additional check?
Not really, because if it is "foobar" your schema would not be applied
correctly.
> If it would not have a conventional
> pattern, it would fail through unevaluatedProperies:false at the end,
> since it would have properties that were contained inside a branch that
> the validation of the node would not have gone through since it contains
> a pattern that does not match the conditions of that branch.
Not for properties which are for example missing...
Best regards,
Krzysztof
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next prev parent reply other threads:[~2022-09-08 16:07 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-06 13:54 [PATCH v2 00/13] Make atmel serial driver aware of GCLK Sergiu Moga
2022-09-06 13:55 ` [PATCH v2 01/13] spi: dt-bindings: atmel,at91rm9200-spi: Add DMA related properties Sergiu Moga
2022-09-06 15:12 ` Mark Brown
2022-09-06 21:41 ` Rob Herring
2022-09-07 7:54 ` Sergiu.Moga
2022-09-08 12:23 ` Krzysztof Kozlowski
2022-09-06 13:55 ` [PATCH v2 02/13] ARM: dts: at91: sama7g5: Swap rx and tx for spi11 Sergiu Moga
2022-09-06 13:55 ` [PATCH v2 03/13] dt-bindings: mfd: atmel,sama5d2-flexcom: Add SPI child node ref binding Sergiu Moga
2022-09-08 12:23 ` Krzysztof Kozlowski
2022-09-06 13:55 ` [PATCH v2 04/13] ARM: dts: at91: sam9x60ek: Add DBGU compatibles to uart1 Sergiu Moga
2022-09-06 13:55 ` [PATCH v2 05/13] dt-bindings: serial: atmel,at91-usart: convert to json-schema Sergiu Moga
2022-09-08 12:29 ` Krzysztof Kozlowski
2022-09-08 15:06 ` Sergiu.Moga
2022-09-08 15:10 ` Krzysztof Kozlowski
2022-09-08 15:27 ` Sergiu.Moga
2022-09-08 16:05 ` Krzysztof Kozlowski [this message]
2022-09-06 13:55 ` [PATCH v2 06/13] dt-bindings: serial: atmel,at91-usart: Add SAM9260 compatibles to SAM9x60 Sergiu Moga
2022-09-08 12:30 ` Krzysztof Kozlowski
2022-09-08 15:15 ` Sergiu.Moga
2022-09-09 1:36 ` Rob Herring
2022-09-12 7:45 ` Sergiu.Moga
2022-09-12 10:44 ` Krzysztof Kozlowski
2022-09-12 13:09 ` Sergiu.Moga
2022-09-13 8:58 ` Krzysztof Kozlowski
2022-09-13 9:19 ` Sergiu.Moga
2022-09-13 9:30 ` Krzysztof Kozlowski
2022-09-13 9:35 ` Sergiu.Moga
2022-09-06 13:55 ` [PATCH v2 07/13] dt-bindings: mfd: atmel,sama5d2-flexcom: Add USART child node ref binding Sergiu Moga
2022-09-08 12:33 ` Krzysztof Kozlowski
2022-09-06 13:55 ` [PATCH v2 08/13] tty: serial: atmel: Define GCLK as USART baudrate source clock Sergiu Moga
2022-09-07 9:21 ` Ilpo Järvinen
2022-09-07 9:37 ` Sergiu.Moga
2022-09-06 13:55 ` [PATCH v2 09/13] tty: serial: atmel: Define BRSRCCK bitmask of UART IP's Mode Register Sergiu Moga
2022-09-07 9:24 ` Ilpo Järvinen
2022-09-06 13:55 ` [PATCH v2 10/13] tty: serial: atmel: Only divide Clock Divisor if the IP is USART Sergiu Moga
2022-09-07 9:23 ` Ilpo Järvinen
2022-09-07 9:34 ` Sergiu.Moga
2022-09-06 13:55 ` [PATCH v2 11/13] clk: at91: sama5d2: Add Generic Clocks for UART/USART Sergiu Moga
2022-09-06 13:55 ` [PATCH v2 12/13] tty: serial: atmel: Make the driver aware of the existence of GCLK Sergiu Moga
2022-09-07 9:36 ` Ilpo Järvinen
2022-09-07 11:11 ` Sergiu.Moga
2022-09-07 11:29 ` Ilpo Järvinen
2022-09-12 8:06 ` Claudiu.Beznea
2022-09-06 13:55 ` [PATCH v2 13/13] dt-bindings: serial: atmel,at91-usart: Add gclk as a possible USART clock Sergiu Moga
2022-09-08 12:35 ` Krzysztof Kozlowski
2022-09-08 15:33 ` Sergiu.Moga
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