The patch below does not apply to the 6.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.15.y git checkout FETCH_HEAD git cherry-pick -x 673fa129e558c5f1196adb27d97ac90ddfe4f19c # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2025060254-gong-slimy-ea8d@gregkh' --subject-prefix 'PATCH 6.15.y' HEAD^..

Possible dependencies:

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 673fa129e558c5f1196adb27d97ac90ddfe4f19c Mon Sep 17 00:00:00 2001 From: Johan Hovold johan+linaro@kernel.org Date: Fri, 14 Mar 2025 15:54:34 +0100 Subject: [PATCH] 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@vger.kernel.org # 6.12 Reviewed-by: Konrad Dybcio konrad.dybcio@oss.qualcomm.com Signed-off-by: Johan Hovold johan+linaro@kernel.org Link: https://lore.kernel.org/r/20250314145440.11371-3-johan+linaro@kernel.org Signed-off-by: Bjorn Andersson andersson@kernel.org

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 {