[PATCH v2 1/8] arm64: dts: qcom: x1e80100-crd: mark l12b and l15b always-on

From: Johan Hovold
Date: Fri Mar 14 2025 - 10:55:40 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: bd50b1f5b6f3 ("arm64: dts: qcom: x1e80100: Add Compute Reference Device")
Cc: stable@xxxxxxxxxxxxxxx # 6.8
Cc: Abel Vesa <abel.vesa@xxxxxxxxxx>
Cc: Rajendra Nayak <quic_rjendra@xxxxxxxxxxx>
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/x1-crd.dtsi | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1-crd.dtsi b/arch/arm64/boot/dts/qcom/x1-crd.dtsi
index 9e587dc57532..22ebcbe54e24 100644
--- a/arch/arm64/boot/dts/qcom/x1-crd.dtsi
+++ b/arch/arm64/boot/dts/qcom/x1-crd.dtsi
@@ -610,6 +610,7 @@ 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 {
@@ -631,6 +632,7 @@ 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