linux-kernel - [PATCH 7/8] arm64: dts: qcom: msm8916-samsung-gt5-common: Add fuelgauge

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Message-Id: <20230105123240.1089375-8-nikita@trvn.ru>
Date:   Thu,  5 Jan 2023 17:32:39 +0500
From:   Nikita Travkin <nikita@...n.ru>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Siddharth Manthan <siddharth.manthan@...il.com>,
        Jasper Korten <jja2000@...il.com>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht,
        Nikita Travkin <nikita@...n.ru>
Subject: [PATCH 7/8] arm64: dts: qcom: msm8916-samsung-gt5-common: Add fuelgauge

gt5 devices use additional MAX77849 MFD to handle battery, charging
and usb switching. Fuel-gauge from this MFD has a separate i2c line.

Signed-off-by: Nikita Travkin <nikita@...n.ru>
---
 .../dts/qcom/msm8916-samsung-gt5-common.dtsi  | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-gt5-common.dtsi b/arch/arm64/boot/dts/qcom/msm8916-samsung-gt5-common.dtsi
index 9cdb33247691..9f97a8129278 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-samsung-gt5-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-gt5-common.dtsi
@@ -63,6 +63,25 @@ hall-sensor-switch {
 	};
 };
 
+&blsp_i2c4 {
+	status = "okay";
+
+	fuelgauge@36 {
+		compatible = "maxim,max77849-battery";
+		reg = <0x36>;
+
+		maxim,rsns-microohm = <10000>;
+		maxim,over-heat-temp = <600>;
+		maxim,over-volt = <4400>;
+
+		interrupt-parent = <&msmgpio>;
+		interrupts = <121 IRQ_TYPE_EDGE_FALLING>;
+
+		pinctrl-0 = <&fuelgauge_int_default>;
+		pinctrl-names = "default";
+	};
+};
+
 &blsp1_uart2 {
 	status = "okay";
 };
@@ -218,6 +237,14 @@ l18 {
 };
 
 &msmgpio {
+	fuelgauge_int_default: fuelgauge-int-default-state {
+		pins = "gpio121";
+		function = "gpio";
+
+		drive-strength = <2>;
+		bias-disable;
+	};
+
 	gpio_keys_default: gpio-keys-default-state {
 		pins = "gpio107", "gpio109";
 		function = "gpio";
-- 
2.38.1