arch/arm64/boot/dts/qcom/x1e80100-microsoft-romulus.dtsi
Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/qcom/x1e80100-microsoft-romulus.dtsi
File Facts
- System
- Linux kernel
- Corpus path
arch/arm64/boot/dts/qcom/x1e80100-microsoft-romulus.dtsi- Extension
.dtsi- Size
- 31703 bytes
- Lines
- 1580
- 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.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
Dependency Surface
dt-bindings/gpio/gpio.hdt-bindings/input/gpio-keys.hdt-bindings/input/input.hdt-bindings/leds/common.hdt-bindings/regulator/qcom,rpmh-regulator.hhamoa.dtsihamoa-pmics.dtsi
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
// SPDX-License-Identifier: BSD-3-Clause
/*
* Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/gpio-keys.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/regulator/qcom,rpmh-regulator.h>
#include "hamoa.dtsi"
#include "hamoa-pmics.dtsi"
/ {
aliases {
serial0 = &uart2;
i2c0 = &i2c0;
i2c3 = &i2c3;
i2c4 = &i2c4;
i2c5 = &i2c5;
i2c7 = &i2c7;
};
wcd938x: audio-codec {
compatible = "qcom,wcd9385-codec";
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>;
vdd-rxtx-supply = <&vreg_l15b>;
vdd-io-supply = <&vreg_l15b>;
vdd-mic-bias-supply = <&vreg_bob1>;
pinctrl-0 = <&wcd_default>;
pinctrl-names = "default";
#sound-dai-cells = <1>;
};
backlight: backlight {
compatible = "pwm-backlight";
pwms = <&pmk8550_pwm 0 5000000>;
enable-gpios = <&pmc8380_3_gpios 4 GPIO_ACTIVE_HIGH>;
/* TODO: power-supply? */
pinctrl-0 = <&edp_bl_en>, <&edp_bl_pwm>;
pinctrl-names = "default";
};
gpio-keys {
compatible = "gpio-keys";
pinctrl-0 = <&hall_int_n_default>;
pinctrl-names = "default";
switch-lid {
gpios = <&tlmm 2 GPIO_ACTIVE_LOW>;
linux,input-type = <EV_SW>;
Annotation
- Immediate include surface: `dt-bindings/gpio/gpio.h`, `dt-bindings/input/gpio-keys.h`, `dt-bindings/input/input.h`, `dt-bindings/leds/common.h`, `dt-bindings/regulator/qcom,rpmh-regulator.h`, `hamoa.dtsi`, `hamoa-pmics.dtsi`.
- Atlas domain: Architecture Layer / arch/arm64.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.