From: André Draszik <andre.draszik@linaro.org>
Date: Mon, 2 Mar 2026 12:35:22 +0000 (+0000)
Subject: arm64: dts: exynos: gs101-pixel-common: add Maxim MAX77759 fuel gauge
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=3d7bd20e026687db513887e4d066121cb0a49852;p=thirdparty%2Fkernel%2Fstable.git

arm64: dts: exynos: gs101-pixel-common: add Maxim MAX77759 fuel gauge

On Pixel 6 (and Pro), a MAX77759 companion PMIC for USB Type-C
applications is used, which contains four functional blocks (at
distinct I2C addresses):
  * top (including GPIO & NVMEM)
  * charger
  * fuel gauge
  * TCPCi

This change adds the fuel gauge.

Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Tested-by: Peter Griffin <peter.griffin@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20260302-max77759-fg-dts-v2-1-12f1109a6fee@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---

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 3a14610a6e69..5227cd4e314b 100644
--- a/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi
+++ b/arch/arm64/boot/dts/exynos/google/gs101-pixel-common.dtsi
@@ -727,6 +727,17 @@
 		};
 	};
 
+	fuel-gauge@36 {
+		compatible = "maxim,max77759-fg";
+		reg = <0x36>;
+
+		pinctrl-0 = <&if_pmic_fg_int>;
+		pinctrl-names = "default";
+		interrupts-extended = <&gpa9 3 IRQ_TYPE_LEVEL_LOW>;
+
+		shunt-resistor-micro-ohms = <5000>;
+	};
+
 	pmic@66 {
 		compatible = "maxim,max77759";
 		reg = <0x66>;
@@ -825,6 +836,13 @@
 		samsung,pin-pud = <GS101_PIN_PULL_NONE>;
 	};
 
+	if_pmic_fg_int: if-pmic-fg-int-pins {
+		samsung,pins = "gpa9-3";
+		samsung,pin-function = <GS101_PIN_FUNC_EINT>;
+		samsung,pin-pud = <GS101_PIN_PULL_UP>;
+		samsung,pin-drv = <GS101_PIN_DRV_2_5_MA>;
+	};
+
 	key_power: key-power-pins {
 		samsung,pins = "gpa10-1";
 		samsung,pin-function = <GS101_PIN_FUNC_EINT>;