linux-kernel - Re: [PATCH 0/8] arm64: dts: qcom: x1e: mark l12b and l15b always-on

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Message-ID: <e6dc86bb-1dd1-486e-8e3e-18974da6cf86@oss.qualcomm.com>
Date: Tue, 4 Mar 2025 18:07:32 +0100
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: Johan Hovold <johan+linaro@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/8] arm64: dts: qcom: x1e: mark l12b and l15b always-on

On 27.02.2025 9:13 AM, Johan Hovold wrote:
> The l12b and l15b supplies are used by components that are not (fully)
> described (and some never will be) and must never be disabled.
> 
> Mark the regulators as always-on to prevent them from being disabled,
> for example, when consumers probe defer or suspend.
> 
> Note that there are likely votes from other processors for these rpmh
> regulators (at least for l15b) but the OS should not rely on that in any
> case.
> 
> Included is also a patch that adds the missing HID supplies for the
> T14s. It was a corresponding change for the CRD that made me look into
> this to make sure these supplies were not disabled during suspend or on
> probe deferrals.
> 
> Johan

This looks good, too bad SL7 was left out :( I'll take care of that
myself

Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>

Konrad