linux-kernel - [PATCH 4/8] arm64: dts: qcom: msm8939-samsung-a7: Add accelerometer/magnetometer

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Date:   Thu, 22 Jun 2023 02:05:12 +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 4/8] arm64: dts: qcom: msm8939-samsung-a7: Add accelerometer/magnetometer

A7 uses a Bosch BMC150 accelerometer/magnetometer combo.
The chip provides two separate I2C devices for the accelerometer
and magnetometer that are already supported by the bmc150-accel
and bmc150-magn driver.

Signed-off-by: Lin, Meng-Bo <linmengbo0689@...tonmail.com>
---
 .../boot/dts/qcom/msm8939-samsung-a7.dts      | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/msm8939-samsung-a7.dts b/arch/arm64/boot/dts/qcom/msm8939-samsung-a7.dts
index 98a2738eb8ea..6a817038a3b9 100644
--- a/arch/arm64/boot/dts/qcom/msm8939-samsung-a7.dts
+++ b/arch/arm64/boot/dts/qcom/msm8939-samsung-a7.dts
@@ -69,6 +69,43 @@ button-home {
 		};
 	};
 
+	i2c-sensor {
+		compatible = "i2c-gpio";
+		sda-gpios = <&tlmm 84 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+		scl-gpios = <&tlmm 85 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
+
+		pinctrl-0 = <&sensor_i2c_default>;
+		pinctrl-names = "default";
+
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		accelerometer: accelerometer@10 {
+			compatible = "bosch,bmc150_accel";
+			reg = <0x10>;
+			interrupt-parent = <&tlmm>;
+			interrupts = <115 IRQ_TYPE_EDGE_RISING>;
+
+			vdd-supply = <&pm8916_l17>;
+			vddio-supply = <&pm8916_l5>;
+
+			pinctrl-0 = <&accel_int_default>;
+			pinctrl-names = "default";
+
+			mount-matrix = "-1", "0", "0",
+					"0", "-1", "0",
+					"0", "0", "1";
+		};
+
+		magnetometer@12 {
+			compatible = "bosch,bmc150_magn";
+			reg = <0x12>;
+
+			vdd-supply = <&pm8916_l17>;
+			vddio-supply = <&pm8916_l5>;
+		};
+	};
+
 	i2c-tkey {
 		compatible = "i2c-gpio";
 		sda-gpios = <&tlmm 16 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>;
@@ -190,6 +227,13 @@ &wcnss_iris {
 };
 
 &tlmm {
+	accel_int_default: accel-int-default-state {
+		pins = "gpio115";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
 	gpio_hall_sensor_default: gpio-hall-sensor-default-state {
 		pins = "gpio52";
 		function = "gpio";
@@ -218,6 +262,13 @@ sdc2_cd_default: sdc2-cd-default-state {
 		bias-pull-up;
 	};
 
+	sensor_i2c_default: sensor-i2c-default-state {
+		pins = "gpio84", "gpio85";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
 	tkey_default: tkey-default-state {
 		pins = "gpio20";
 		function = "gpio";
-- 
2.39.2