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Message-ID: <20250314145440.11371-3-johan+linaro@kernel.org>
Date: Fri, 14 Mar 2025 15:54:34 +0100
From: Johan Hovold <johan+linaro@...nel.org>
To: 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>,
linux-arm-msm@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Johan Hovold <johan+linaro@...nel.org>,
stable@...r.kernel.org,
Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: [PATCH v2 2/8] arm64: dts: qcom: x1e78100-t14s: mark l12b and l15b always-on
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.
Fixes: 7d1cbe2f4985 ("arm64: dts: qcom: Add X1E78100 ThinkPad T14s Gen 6")
Cc: stable@...r.kernel.org # 6.12
Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
---
arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
index eff0e73640bc..160c052db1ec 100644
--- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi
@@ -456,6 +456,7 @@ vreg_l12b_1p2: ldo12 {
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ regulator-always-on;
};
vreg_l13b_3p0: ldo13 {
@@ -477,6 +478,7 @@ vreg_l15b_1p8: ldo15 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ regulator-always-on;
};
vreg_l17b_2p5: ldo17 {
--
2.48.1
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