linux-kernel - [PATCH v3 10/11] arm64: dts: qcom: sdm845-lg-judyln: Add lab/ibb

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Message-Id: <20250928-judyln-dts-v3-10-b14cf9e9a928@postmarketos.org>
Date: Sun, 28 Sep 2025 22:05:33 -0700
From: Paul Sajna <sajattack@...tmarketos.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, David Heidelberg <david@...t.cz>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, phone-devel@...r.kernel.org, 
 Amir Dahan <system64fumo@...tonmail.com>, 
 Christopher Brown <crispybrown@...il.com>, 
 Paul Sajna <sajattack@...tmarketos.org>
Subject: [PATCH v3 10/11] arm64: dts: qcom: sdm845-lg-judyln: Add lab/ibb

These regulators seemingly help the lcd to work better

Signed-off-by: Paul Sajna <sajattack@...tmarketos.org>
---
 arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts b/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
index 3106fdc9b679bc6a43a1a490c61b73a63003f7e1..9c3662a3d93e124667474753e0f11d0e98698aa0 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-lg-judyln.dts
@@ -48,10 +48,27 @@ zap-shader {
 	};
 };
 
+&ibb {
+	regulator-min-microvolt = <4600000>;
+	regulator-max-microvolt = <6000000>;
+	regulator-over-current-protection;
+	regulator-pull-down;
+	regulator-soft-start;
+	qcom,discharge-resistor-kohms = <300>;
+};
+
 &ipa {
 	firmware-name = "qcom/sdm845/lg/judyln/ipa_fws.mbn";
 };
 
+&lab {
+	regulator-min-microvolt = <4600000>;
+	regulator-max-microvolt = <6000000>;
+	regulator-over-current-protection;
+	regulator-pull-down;
+	regulator-soft-start;
+};
+
 &mdss {
 	status = "okay";
 };

-- 
2.51.0