Re: [PATCH v3 1/2] dt-bindings: regulator: qcom,rpmh: Allow regulator-off-on-delay-us

From: Konrad Dybcio

Date: Fri Jan 30 2026 - 06:12:03 EST


On 1/29/26 7:15 PM, Mark Brown wrote:
> On Thu, Jan 29, 2026 at 11:49:42AM -0600, Rob Herring wrote:
>> On Wed, Jan 28, 2026 at 12:32:10AM +0530, Saikiran wrote:
>
>>> This property is required for platforms where specific rails (like camera
>>> LDOs) rely on passive discharge and need a mandatory off-time constraint
>>> enforced by the regulator core.
>
>> Does enforcing some off time on all your regulators cause some negative
>> impact on the ones that don't need it? If turning them back on is
>> performance critical maybe don't turn them off in the first place.
>
> You might see something like unexpectedly long delays resuming a runtime
> suspended device. Generally I'd say that if the delays needed for
> something like this are long enough for anyone to notice they're long
> enough to be disruptive.
>
> Having said that I believe an active discharge feature in the hardware
> has been identified and is being investigated, that's generally a vastly
> better solution all round so hopefully this change isn't needed at all.

+Jishnu, Kamal

Could you please confirm whether our hw can do that?

Konrad