From 06c8fc3e132ce8659bc9f0877b5c6daaf41aadbd Mon Sep 17 00:00:00 2001 From: Michael Scott Date: Wed, 20 May 2026 18:09:34 -0700 Subject: [PATCH] arm64: dts: qcom: x1-dell-thena: 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. Note that these supplies currently have no consumers described in mainline for dell-thena beyond the audio codec (vdd-buck/vdd-rxtx/ vdd-io on wcd938x), which can release them when the codec goes idle. The board-level gpio-fixed regulators that feed the Type-C retimer's VDDIO and other rails are not described with a vin-supply link, so the kernel cannot keep their parent LDOs alive on its own. This mirrors the same change Johan Hovold applied to every other X1E80100 board in a March 2025 series; commit 63169c07d740 ("arm64: dts: qcom: x1e80100-dell-xps13-9345: mark l12b and l15b always-on") is representative. The dell-thena board file was introduced four months later and did not inherit that change; this patch closes the gap. Fixes: e7733b42111c ("arm64: dts: qcom: Add support for Dell Inspiron 7441 / Latitude 7455") Cc: stable@vger.kernel.org Signed-off-by: Michael Scott Reviewed-by: Konrad Dybcio Acked-by: Val Packett Link: https://lore.kernel.org/r/20260521010935.1333494-4-mike.scott@oss.qualcomm.com Signed-off-by: Bjorn Andersson --- arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi b/arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi index db291730130c..d6de4da02dcd 100644 --- a/arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi +++ b/arch/arm64/boot/dts/qcom/x1-dell-thena.dtsi @@ -589,6 +589,7 @@ regulator-min-microvolt = <1200000>; regulator-max-microvolt = <1200000>; regulator-initial-mode = ; + regulator-always-on; }; vreg_l13b_3p0: ldo13 { @@ -610,6 +611,7 @@ regulator-min-microvolt = <1800000>; regulator-max-microvolt = <1800000>; regulator-initial-mode = ; + regulator-always-on; }; };