[PATCH 1/3] dt-bindings: rtc: Add sii,wakealarm-output-pin property for S35390A

[Krzysztof Kozlowski]

On 02/07/2026 10:17, Alexandre Belloni wrote:
> On 02/07/2026 08:09:55+0200, Krzysztof Kozlowski wrote:
>>>> Then you need proper wakeup-source support
>>> Wouldn't that break existing devicetrees?
>>
>> How?
>>
>>>
>>> The current driver allows to wake up the system, even without
>>> having wakeup-source set.
>>
>> Anyway, wakeup-source is already there in rtc, so this would be done. I
>> don't get though, why there is no benefit of routing it to interrupt
>> controller (interrupt controllers do wake up the system). Additionally,
>> if you do not connect it to any interrupt, then how does it wake up the
>> system?
>>
> 
> Some systems are routing the interrupt output of the RTC directly to the
> PMIC and the PMIC is the one responsible for waking the rest of the
> system, including the SoC.

Yeah, then the PMIC has interrupt line to the SoC and the PMIC is the
wakeup-source, not RTC.

Best regards,
Krzysztof