linux-kernel - [PATCH] arm64: dts: qcom: sdm845-oneplus: labibb is not used on OnePlus 6/6T

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Message-Id: <20251130-oneplus-labibb-v1-1-bb3653e43120@ixit.cz>
Date: Sun, 30 Nov 2025 01:08:19 +0100
From: David Heidelberg via B4 Relay <devnull+david.ixit.cz@...nel.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>, 
 Casey Connolly <casey.connolly@...aro.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, phone-devel@...r.kernel.org, 
 David Heidelberg <david@...t.cz>
Subject: [PATCH] arm64: dts: qcom: sdm845-oneplus: labibb is not used on
 OnePlus 6/6T

From: David Heidelberg <david@...t.cz>

The lab and ibb regulators aren't used here. Disable them.

Removes following warnings:
qcom-lab-ibb-regulator c440000.spmi:pmic@3:labibb: Failed to create device link (0x180) with supplier c440000.spmi for /soc@...pmi@...0000/pmic@...abibb/lab
qcom-lab-ibb-regulator c440000.spmi:pmic@3:labibb: Failed to create device link (0x180) with supplier c440000.spmi for /soc@...pmi@...0000/pmic@...abibb/ibb

Fixes: 288ef8a42612 ("arm64: dts: sdm845: add oneplus6/6t devices")
Signed-off-by: David Heidelberg <david@...t.cz>
---
I assume this is right approach, as OLEDs on both devices are driven by
different regulators.

Question is, if should be labibb nodes enabled by default?
---
 arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
index db6dd04c51bb5..78a835bdfe3b4 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
@@ -419,6 +419,10 @@ rmi4_f12: rmi4-f12@12 {
 	};
 };
 
+&ibb {
+	status = "disabled";
+};
+
 &ipa {
 	qcom,gsi-loader = "self";
 	memory-region = <&ipa_fw_mem>;
@@ -426,6 +430,10 @@ &ipa {
 	status = "okay";
 };
 
+&lab {
+	status = "disabled";
+};
+
 &mdss {
 	status = "okay";
 };

---
base-commit: 7d31f578f3230f3b7b33b0930b08f9afd8429817
change-id: 20251130-oneplus-labibb-05bdd6d6d2b1

Best regards,
-- 
David Heidelberg <david@...t.cz>