arch/arm64/boot/dts/qcom/purwa-iot-evk.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/qcom/purwa-iot-evk.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/qcom/purwa-iot-evk.dts
Extension
.dts
Size
30761 bytes
Lines
1591
Domain
Architecture Layer
Bucket
arch/arm64
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: BSD-3-Clause
/*
 * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
 */

/dts-v1/;

#include <dt-bindings/leds/common.h>
#include "purwa-iot-som.dtsi"
#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>

/ {
	model = "Qualcomm Technologies, Inc. Purwa IoT EVK";
	compatible = "qcom,purwa-iot-evk", "qcom,purwa-iot-som", "qcom,x1p42100";
	chassis-type = "embedded";

	aliases {
		serial0 = &uart21;
		serial1 = &uart14;
	};

	backlight: backlight {
		compatible = "pwm-backlight";
		pwms = <&pmk8550_pwm 0 5000000>;
		enable-gpios = <&pmc8380_3_gpios 4 GPIO_ACTIVE_HIGH>;
		power-supply = <&vreg_edp_bl>;

		pinctrl-0 = <&edp_bl_en>, <&edp_bl_pwm>;
		pinctrl-names = "default";
	};

	wcd938x: audio-codec {
		compatible = "qcom,wcd9385-codec";

		pinctrl-0 = <&wcd_default>;
		pinctrl-names = "default";

		reset-gpios = <&tlmm 191 GPIO_ACTIVE_LOW>;

		qcom,micbias1-microvolt = <1800000>;
		qcom,micbias2-microvolt = <1800000>;
		qcom,micbias3-microvolt = <1800000>;
		qcom,micbias4-microvolt = <1800000>;
		qcom,mbhc-buttons-vthreshold-microvolt = <75000 150000 237000 500000
							 500000 500000 500000 500000>;
		qcom,mbhc-headset-vthreshold-microvolt = <1700000>;
		qcom,mbhc-headphone-vthreshold-microvolt = <50000>;
		qcom,rx-device = <&wcd_rx>;
		qcom,tx-device = <&wcd_tx>;

		vdd-buck-supply = <&vreg_l15b_1p8>;
		vdd-rxtx-supply = <&vreg_l15b_1p8>;
		vdd-io-supply = <&vreg_l15b_1p8>;
		vdd-mic-bias-supply = <&vreg_bob1>;

		#sound-dai-cells = <1>;
	};

	chosen {
		stdout-path = "serial0:115200n8";
	};

	connector3 {
		compatible = "usb-a-connector";
		label = "USB-3-Type-A";
		power-role = "source";

		vbus-supply = <&regulator_usb3_vbus>;

		port {

Annotation

Implementation Notes