linux-kernel - Re: [PATCH 3/7] arm64: dts: st: add RISAB1/2/3/4/5/6 nodes to stm32mp251.dtsi

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Message-ID: <ce0fb318-34e9-41c8-9d81-babe6b8561b2@foss.st.com>
Date: Tue, 10 Feb 2026 10:58:58 +0100
From: Gatien CHEVALLIER <gatien.chevallier@...s.st.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>, Alexandre Torgue
	<alexandre.torgue@...s.st.com>
CC: <devicetree@...r.kernel.org>, <linux-stm32@...md-mailman.stormreply.com>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/7] arm64: dts: st: add RISAB1/2/3/4/5/6 nodes to
 stm32mp251.dtsi



On 2/10/26 08:51, Krzysztof Kozlowski wrote:
> On 09/02/2026 15:59, Gatien Chevallier wrote:
>> Add RISAB1/2/3/4/5/6 nodes to the stm32mp251.dtsi device tree SoC
>> file.
> 
> And what is RISAB?
> 
>>
>> Signed-off-by: Gatien Chevallier <gatien.chevallier@...s.st.com>
>> ---
>>   arch/arm64/boot/dts/st/stm32mp251.dtsi | 48 ++++++++++++++++++++++++++++++++++
>>   1 file changed, 48 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
>> index a8e6e0f77b83..e9d8338b2017 100644
>> --- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
>> +++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
>> @@ -1733,6 +1733,54 @@ pcie@0,0 {
>>   			};
>>   		};
>>   
>> +		risab1: risab@...f0000 {
> 
> It appears here as node name as well, so it must be a generic name, but
> I do not recall it in DT spec or my knowledge.
> 
> Best regards,
> Krzysztof

This will change as well.

Best regards,
Gatien