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

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Message-ID: <20250314145440.11371-4-johan+linaro@kernel.org>
Date: Fri, 14 Mar 2025 15:54:35 +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,
	Sibi Sankar <quic_sibis@...cinc.com>,
	Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: [PATCH v2 3/8] arm64: dts: qcom: x1e001de-devkit: 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: 7b8a31e82b87 ("arm64: dts: qcom: Add X1E001DE Snapdragon Devkit for Windows")
Cc: stable@...r.kernel.org	# 6.14
Cc: Sibi Sankar <quic_sibis@...cinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
---
 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