[PATCH 3/5] arm64: dts: qcom: r0q: enable max77705 PMIC
From: Eric Gonçalves
Date: Fri Sep 19 2025 - 21:47:14 EST
The Samsung Galaxy S22 uses max77705 as its charger, fuelgauge and haptic
PMIC, enable the fuelgauge and charger for now.
Signed-off-by: Eric Gonçalves <ghatto404@xxxxxxxxx>
---
.../boot/dts/qcom/sm8450-samsung-r0q.dts | 34 +++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts b/arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts
index 7bf56564dfc6..c1b0b21c0ec5 100644
--- a/arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts
+++ b/arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts
@@ -14,6 +14,16 @@ / {
compatible = "samsung,r0q", "qcom,sm8450";
chassis-type = "handset";
+ battery: battery {
+ compatible = "simple-battery";
+
+ constant-charge-current-max-microamp = <2150000>;
+ charge-full-design-microamp-hours = <3700000>;
+ over-voltage-threshold-microvolt = <4500000>;
+ voltage-min-design-microvolt = <3400000>;
+ voltage-max-design-microvolt = <4350000>;
+ };
+
chosen {
#address-cells = <2>;
#size-cells = <2>;
@@ -186,6 +196,26 @@ vreg_l11c_3p0: ldo11 {
};
};
+&i2c5 {
+ status = "okay";
+
+ max77705_charger: charger@69 {
+ compatible = "maxim,max77705-charger";
+ reg = <0x69>;
+ monitored-battery = <&battery>;
+ interrupt-parent = <&tlmm>;
+ interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+ };
+
+ fuel-gauge@36 {
+ reg = <0x36>;
+ compatible = "maxim,max77705-battery";
+ power-supplies = <&max77705_charger>;
+ interrupt-parent = <&tlmm>;
+ interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+ };
+};
+
&pm8350_gpios {
vol_up_n: vol-up-n-state {
pins = "gpio6";
@@ -345,3 +375,7 @@ &usb_1_hsphy {
status = "okay";
};
+
+&qupv3_id_0 {
+ status = "okay";
+};
--
2.51.0