From 7d66b2218769f3d3df153538771df714f121b521 Mon Sep 17 00:00:00 2001
From: Rakesh Kota <kotarake@qti.qualcomm.com>
Date: Wed, 25 May 2022 17:42:14 +0530
Subject: [PATCH] ARM: dts: msm: Add support for BQ27421 fuel-gauge node

Add BQ27421 fuel-gauge and battery specs for neo.

Change-Id: I940183e151df1311ccf5cc54873a63ae3116c12e
---
 qcom/neo-pinctrl.dtsi      | 15 +++++++++++++++
 qcom/neo-pmic-overlay.dtsi | 38 ++++++++++++++++++++++++++++++++++++--
 2 files changed, 51 insertions(+), 2 deletions(-)

diff --git a/qcom/neo-pinctrl.dtsi b/qcom/neo-pinctrl.dtsi
index 44242461..74efbdd2 100644
--- a/qcom/neo-pinctrl.dtsi
+++ b/qcom/neo-pinctrl.dtsi
@@ -641,6 +641,21 @@
 		};
 	};
 
+	bq27421_intr: bq27421_intr {
+		bq27421_intr_default: bq27421_intr_default {
+			mux {
+				pins = "gpio7";
+				function = "gpio";
+			};
+
+			config {
+				pins = "gpio7";
+				bias-pull-up;
+				input-enabled;
+			};
+		};
+	};
+
 	qupv3_se11_2uart_pins: qupv3_se11_2uart_pins {
 			qupv3_se11_2uart_active: qupv3_se11_2uart_active {
 				mux {
diff --git a/qcom/neo-pmic-overlay.dtsi b/qcom/neo-pmic-overlay.dtsi
index 1df5bf14..f246af0b 100644
--- a/qcom/neo-pmic-overlay.dtsi
+++ b/qcom/neo-pmic-overlay.dtsi
@@ -154,6 +154,27 @@
 	#size-cells = <0>;
 	status = "ok";
 
+	battery: battery {
+		compatible = "simple-battery";
+		charge-term-current-microamp = <12800>;
+		constant-charge-current-max-microamp = <500000>;
+		constant-charge-voltage-max-microvolt = <4480000>;
+		voltage-min-design-microvolt = <3200000>;
+		voltage-max-design-microvolt = <4480000>;
+		precharge-current-microamp = <128000>;
+		charge-full-design-microamp-hours = <645000>;
+		factory-internal-resistance-micro-ohms = <120000>;
+		ocv-capacity-celsius = <(-10) 0 15 45>;
+		/* table for -10 degree Celsius */
+		ocv-capacity-table-0 = <4185000 100>, <4113000 95>, <4066000 90>;
+		/* table for 0 degree Celsius */
+		ocv-capacity-table-1 = <4480000 100>, <4383000 95>, <4313000 90>;
+		/* table for 15 degree Celsius */
+		ocv-capacity-table-2 = <4480000 100>, <4383000 95>, <4313000 90>;
+		/* table for 45 degree Celsius */
+		ocv-capacity-table-3 = <4200000 100>, <4190000 95>, <4185000 90>;
+	};
+
 	charger: charger@6b {
 		compatible = "ti,bq25600";
 		reg = <0x6b>;
@@ -161,12 +182,25 @@
 		interrupt-parent = <&tlmm>;
 		interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
 		debugboard-detect-gpio = <&tlmm 54 GPIO_ACTIVE_HIGH>;
-		ti,watchdog-timeout-ms = <40000>;
+		ti,watchdog-timeout-ms = <0>;
 		pinctrl-names =  "default";
 		pinctrl-0 = <&bq256xx_intr_default>;
 
-		input-voltage-limit-microvolt = <4500000>;
+		input-voltage-limit-microvolt = <4480000>;
 		input-current-limit-microamp = <500000>;
+		monitored-battery = <&battery>;
+		status = "ok";
+	};
+
+	bq27421: fuel-gauge@55 {
+		compatible = "ti,bq27421";
+		reg = <0x55>;
+
+		interrupt-parent = <&tlmm>;
+		interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+		pinctrl-names =  "default";
+		pinctrl-0 = <&bq27421_intr_default>;
+		monitored-battery = <&battery>;
 		status = "ok";
 	};
 };