[PATCH v2 3/8] arm64: dts: qcom: x1e001de-devkit: mark l12b and l15b always-on

From: Johan Hovold
Date: Fri Mar 14 2025 - 10:55:52 EST


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: 7b8a31e82b87 ("arm64: dts: qcom: Add X1E001DE Snapdragon Devkit for Windows")
Cc: stable@xxxxxxxxxxxxxxx # 6.14
Cc: Sibi Sankar <quic_sibis@xxxxxxxxxxx>
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/x1e001de-devkit.dts | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e001de-devkit.dts b/arch/arm64/boot/dts/qcom/x1e001de-devkit.dts
index 5e3970b26e2f..f92bda2d34f2 100644
--- a/arch/arm64/boot/dts/qcom/x1e001de-devkit.dts
+++ b/arch/arm64/boot/dts/qcom/x1e001de-devkit.dts
@@ -507,6 +507,7 @@ 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 {
@@ -528,6 +529,7 @@ vreg_l15b_1p8: ldo15 {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
+ regulator-always-on;
};

vreg_l16b_2p9: ldo16 {
--
2.48.1