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

Gatien CHEVALLIER gatien.chevallier at foss.st.com
Tue Feb 10 01:58:58 PST 2026



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 at foss.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 at 0,0 {
>>   			};
>>   		};
>>   
>> +		risab1: risab at 420f0000 {
> 
> 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




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