linux-kernel - [PATCH RFC 4/8] arm64: dts: qcom: pm660: Add fuel gauge

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Message-Id: <20251124-pmi8998_fuel_gauge-v1-4-dd3791f61478@ixit.cz>
Date: Mon, 24 Nov 2025 22:53:37 +0100
From: David Heidelberg via B4 Relay <devnull+david.ixit.cz@...nel.org>
To: Sebastian Reichel <sre@...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>, 
 Casey Connolly <casey@...nolly.tech>, Joel Selvaraj <foss@...lselvaraj.com>, 
 Yassine Oudjana <y.oudjana@...tonmail.com>, 
 Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, 
 Alexander Martinz <amartinz@...ftphones.com>, 
 Barnabás Czémán <barnabas.czeman@...nlining.org>, 
 Richard Acayan <mailingradian@...il.com>, 
 Alexey Minnekhanov <alexeymin@...tmarketos.org>
Cc: linux-pm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
 phone-devel@...r.kernel.org, David Heidelberg <david@...t.cz>
Subject: [PATCH RFC 4/8] arm64: dts: qcom: pm660: Add fuel gauge

From: Richard Acayan <mailingradian@...il.com>

The PM660 has the same fuel gauge as PMI8998. Add support for
PM660 battery monitoring.

Signed-off-by: Richard Acayan <mailingradian@...il.com>
Signed-off-by: David Heidelberg <david@...t.cz>
---
 arch/arm64/boot/dts/qcom/pm660.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/pm660.dtsi b/arch/arm64/boot/dts/qcom/pm660.dtsi
index 156b2ddff0dcb..ce53f5ddc4bdf 100644
--- a/arch/arm64/boot/dts/qcom/pm660.dtsi
+++ b/arch/arm64/boot/dts/qcom/pm660.dtsi
@@ -197,6 +197,16 @@ channel@85 {
 			};
 		};
 
+		pm660_fg: fuel-gauge@...0 {
+			compatible = "qcom,pmi8998-fg";
+			reg = <0x4000>;
+
+			interrupts = <0x0 0x40 0x3 IRQ_TYPE_EDGE_RISING>;
+			interrupt-names = "soc-delta";
+
+			status = "disabled";
+		};
+
 		pm660_rradc: adc@...0 {
 			compatible = "qcom,pm660-rradc";
 			reg = <0x4500>;

-- 
2.51.0