linux-kernel - [PATCH] arm64: dts: qcom: sdm845-oneplus-*: add fuel gauge

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Message-ID: <20220120184546.499030-1-caleb@connolly.tech>
Date:   Thu, 20 Jan 2022 18:46:28 +0000
From:   Caleb Connolly <caleb@...nolly.tech>
To:     caleb@...nolly.tech, Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     ~postmarketos/upstreaming@...ts.sr.ht
Subject: [PATCH] arm64: dts: qcom: sdm845-oneplus-*: add fuel gauge

The OnePlus 6 and 6T feature a BQ27411 fuel gauge for reading the
battery stats. Enable it and add a simple battery to document the
battery specs of each device.

Signed-off-by: Caleb Connolly <caleb@...nolly.tech>
---
 arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi  | 11 +++++++++++
 .../arm64/boot/dts/qcom/sdm845-oneplus-enchilada.dts | 12 ++++++++++++
 arch/arm64/boot/dts/qcom/sdm845-oneplus-fajita.dts   | 12 ++++++++++++
 3 files changed, 35 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
index 7f42e5315ecb..08deca53f0b2 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845-oneplus-common.dtsi
@@ -376,6 +376,17 @@ zap-shader {
 	};
 };

+&i2c10 {
+	status = "okay";
+	clock-frequency = <100000>;
+
+	bq27441_fg: bq27441-battery@55 {
+		compatible = "ti,bq27411";
+		status = "okay";
+		reg = <0x55>;
+	};
+};
+
 &i2c12 {
 	status = "okay";
 	clock-frequency = <400000>;
diff --git a/arch/arm64/boot/dts/qcom/sdm845-oneplus-enchilada.dts b/arch/arm64/boot/dts/qcom/sdm845-oneplus-enchilada.dts
index 5936b47dee5f..bf2cf92e8976 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-oneplus-enchilada.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-oneplus-enchilada.dts
@@ -13,6 +13,14 @@ / {
 	chassis-type = "handset";
 	qcom,msm-id = <0x141 0x20001>;
 	qcom,board-id = <8 0 17819 22>;
+
+	battery: battery {
+		compatible = "simple-battery";
+
+		charge-full-design-microamp-hours = <3300000>;
+		voltage-min-design-microvolt = <3400000>;
+		voltage-max-design-microvolt = <4400000>;
+	};
 };

 &display_panel {
@@ -20,3 +28,7 @@ &display_panel {

 	compatible = "samsung,sofef00";
 };
+
+&bq27441_fg {
+	monitored-battery = <&battery>;
+};
diff --git a/arch/arm64/boot/dts/qcom/sdm845-oneplus-fajita.dts b/arch/arm64/boot/dts/qcom/sdm845-oneplus-fajita.dts
index 78a0b99144e6..1b6b5bf368df 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-oneplus-fajita.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-oneplus-fajita.dts
@@ -13,6 +13,14 @@ / {
 	chassis-type = "handset";
 	qcom,msm-id = <0x141 0x20001>;
 	qcom,board-id = <8 0 18801 41>;
+
+	battery: battery {
+		compatible = "simple-battery";
+
+		charge-full-design-microamp-hours = <3700000>;
+		voltage-min-design-microvolt = <3400000>;
+		voltage-max-design-microvolt = <4400000>;
+	};
 };

 &display_panel {
@@ -21,6 +29,10 @@ &display_panel {
 	compatible = "samsung,s6e3fc2x01";
 };

+&bq27441_fg {
+	monitored-battery = <&battery>;
+};
+
 &rmi4_f12 {
 	touchscreen-y-mm = <148>;
 };
--
2.34.1