linux-kernel - [PATCH] arm64: dts: qcom: qrb4210-rb2: make L9A always-on

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Date: Mon, 03 Jun 2024 15:49:10 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: dts: qcom: qrb4210-rb2: make L9A always-on

The L9A regulator is used to further control voltage regulators on the
board. Make sure that is stays always on to prevent undervolting some of
the volage rails.

Fixes: 8d58a8c0d930 ("arm64: dts: qcom: Add base qrb4210-rb2 board dts")
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 arch/arm64/boot/dts/qcom/qrb4210-rb2.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
index 2c39bb1b97db..e0c14d23b909 100644
--- a/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
+++ b/arch/arm64/boot/dts/qcom/qrb4210-rb2.dts
@@ -403,6 +403,8 @@ vreg_l9a_1p8: l9 {
 			regulator-min-microvolt = <1800000>;
 			regulator-max-microvolt = <1800000>;
 			regulator-allow-set-load;
+			regulator-always-on;
+			regulator-boot-on;
 		};
 
 		vreg_l10a_1p8: l10 {

---
base-commit: 0e1980c40b6edfa68b6acf926bab22448a6e40c9
change-id: 20240603-rb2-l9a-aon-d1292bad5aaa

Best regards,
-- 
Dmitry Baryshkov <dmitry.baryshkov@...aro.org>