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From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Matt Ranostay <mranostay@ti.com>
Cc: vigneshr@ti.com, robh+dt@kernel.org,
	krzysztof.kozlowski+dt@linaro.org,
	linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org
Subject: Re: [PATCH] arm64: dts: k3-j72*: correct compatible for syscon entries
Date: Tue, 18 Oct 2022 18:48:21 -0400	[thread overview]
Message-ID: <ea71315e-cc8c-36aa-d348-dce188d69ba0@linaro.org> (raw)
In-Reply-To: <Y00N1yvHrkKoeJ8i@ubuntu>

On 17/10/2022 04:09, Matt Ranostay wrote:
> On Thu, Oct 13, 2022 at 09:05:11AM -0400, Krzysztof Kozlowski wrote:
>> On 12/10/2022 14:00, Matt Ranostay wrote:
>>> Add missing ti,j721e-system-controller to bus defines in mcu/wakeup
>>> domains to avoid the following similar warnings from dt-schema checks:
>>>
>>> arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dtb: syscon@40f00000: compatible: ['syscon', 'simple-mfd'] is too short'
>>>
>>> Signed-off-by: Matt Ranostay <mranostay@ti.com>
>>> ---
>>>  arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi  | 2 +-
>>>  arch/arm64/boot/dts/ti/k3-j721e-mcu-wakeup.dtsi  | 2 +-
>>>  arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi | 2 +-
>>>  3 files changed, 3 insertions(+), 3 deletions(-)
>>>
>>> diff --git a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
>>> index e5be78a58682..b5c666f98ba4 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
>>> +++ b/arch/arm64/boot/dts/ti/k3-j7200-mcu-wakeup.dtsi
>>> @@ -35,7 +35,7 @@ k3_reset: reset-controller {
>>>  	};
>>>  
>>>  	mcu_conf: syscon@40f00000 {
>>> -		compatible = "syscon", "simple-mfd";
>>> +		compatible = "ti,j721e-system-controller", "syscon", "simple-mfd";
>>
>> That's a different SoC, so probably you should use dedicated compatible
>> here.
> 
> Since there isn't any notable difference between these platforms for the simple-mfd
> controller I'm thinking it maybe makes sense to have a ti,generic-system-controller
> compatible. Thoughts?

Compatibles should be specific unless you and TI guarantee that chosen
one compatible will cover all future hardware from now till 100 years...

Best regards,
Krzysztof


      reply	other threads:[~2022-10-18 22:48 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-12 18:00 [PATCH] arm64: dts: k3-j72*: correct compatible for syscon entries Matt Ranostay
2022-10-13 13:05 ` Krzysztof Kozlowski
2022-10-17  8:09   ` Matt Ranostay
2022-10-18 22:48     ` Krzysztof Kozlowski [this message]

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