linux-kernel - [PATCH v4 5/5] arm64: dts: exynos: gs101-oriole: enable Maxim max77759 fuel gauge

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Message-Id: <20250523-b4-gs101_max77759_fg-v4-5-b49904e35a34@uclouvain.be>
Date: Fri, 23 May 2025 14:51:48 +0200
From: Thomas Antoine via B4 Relay <devnull+t.antoine.uclouvain.be@...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>, Dimitri Fedrau <dima.fedrau@...il.com>, 
 Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, 
 Peter Griffin <peter.griffin@...aro.org>, 
 André Draszik <andre.draszik@...aro.org>, 
 Tudor Ambarus <tudor.ambarus@...aro.org>, 
 Alim Akhtar <alim.akhtar@...sung.com>
Cc: linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-samsung-soc@...r.kernel.org, Thomas Antoine <t.antoine@...ouvain.be>
Subject: [PATCH v4 5/5] arm64: dts: exynos: gs101-oriole: enable Maxim
 max77759 fuel gauge

From: Thomas Antoine <t.antoine@...ouvain.be>

Add the node for the Maxim MAX77759 fuel gauge as a slave of the i2c.

The TODO is still applicable given there are other slaves on the
bus (e.g. PCA9468, other MAX77759 functions and the MAX20339 OVP).

Signed-off-by: Thomas Antoine <t.antoine@...ouvain.be>
---
 arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi b/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi
index b25230495c64dce60916b7cd5dcb9a7cce5d0e4e..84fc10c3562958ab1621f24644709e85a9433b9b 100644
--- a/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi
+++ b/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi
@@ -10,6 +10,7 @@
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
+#include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/usb/pd.h>
 #include "gs101-pinctrl.h"
 #include "gs101.dtsi"
@@ -188,6 +189,15 @@ usbc0_role_sw: endpoint {
 			};
 		};
 	};
+
+	fuel-gauge@36 {
+		compatible = "maxim,max77759-fg";
+		reg = <0x36>;
+		reg-names = "m5";
+		interrupt-parent = <&gpa9>;
+		interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
+		shunt-resistor-micro-ohms = <5000>;
+	};
 };
 
 &pinctrl_far_alive {

-- 
2.49.0