linux-kernel - [PATCH 5/8] arm64: dts: qcom: msm8939-samsung-a7: Add rt5033 battery

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Date:   Thu, 22 Jun 2023 02:05:26 +0000
From:   "Lin, Meng-Bo" <linmengbo0689@...tonmail.com>
To:     linux-kernel@...r.kernel.org
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Stephan Gerhold <stephan@...hold.net>,
        Nikita Travkin <nikita@...n.ru>, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, ~postmarketos/upstreaming@...ts.sr.ht
Subject: [PATCH 5/8] arm64: dts: qcom: msm8939-samsung-a7: Add rt5033 battery

The Samsung Galaxy A7 uses a Richtek RT5033 PMIC as battery
fuel gauge, charger, flash LED and for some regulators. For now,
only add the fuel gauge/battery device to the device tree,
so we can check the remaining battery percentage.

The other RT5033 drivers need some more work first before
they can be used properly.

Signed-off-by: Lin, Meng-Bo <linmengbo0689@...tonmail.com>
---
 .../boot/dts/qcom/msm8939-samsung-a7.dts      | 37 +++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8939-samsung-a7.dts b/arch/arm64/boot/dts/qcom/msm8939-samsung-a7.dts
index 6a817038a3b9..271dcea6da94 100644
--- a/arch/arm64/boot/dts/qcom/msm8939-samsung-a7.dts
+++ b/arch/arm64/boot/dts/qcom/msm8939-samsung-a7.dts
@@ -69,6 +69,29 @@ button-home {
 		};
 	};
 
+	i2c-fg {
+		compatible = "i2c-gpio";
+		sda-gpios = <&tlmm 106 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+		scl-gpios = <&tlmm 105 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+
+		pinctrl-0 = <&fg_i2c_default>;
+		pinctrl-names = "default";
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		battery@35 {
+			compatible = "richtek,rt5033-battery";
+			reg = <0x35>;
+
+			interrupt-parent = <&tlmm>;
+			interrupts = <121 IRQ_TYPE_EDGE_BOTH>;
+
+			pinctrl-0 = <&fg_alert_default>;
+			pinctrl-names = "default";
+		};
+	};
+
 	i2c-sensor {
 		compatible = "i2c-gpio";
 		sda-gpios = <&tlmm 84 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
@@ -234,6 +257,20 @@ accel_int_default: accel-int-default-state {
 		bias-disable;
 	};
 
+	fg_alert_default: fg-alert-default-state {
+		pins = "gpio121";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
+	fg_i2c_default: fg-i2c-default-state {
+		pins = "gpio105", "gpio106";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
 	gpio_hall_sensor_default: gpio-hall-sensor-default-state {
 		pins = "gpio52";
 		function = "gpio";
-- 
2.39.2