arch/arm/boot/dts/qcom/qcom-apq8074-dragonboard.dts
Source file repositories/reference/linux-study-clean/arch/arm/boot/dts/qcom/qcom-apq8074-dragonboard.dts
File Facts
- System
- Linux kernel
- Corpus path
arch/arm/boot/dts/qcom/qcom-apq8074-dragonboard.dts- Extension
.dts- Size
- 8768 bytes
- Lines
- 480
- Domain
- Architecture Layer
- Bucket
- arch/arm
- 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/input.hdt-bindings/leds/common.hdt-bindings/pinctrl/qcom,pmic-gpio.hqcom-msm8974.dtsipm8841.dtsipm8941.dtsi
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
// SPDX-License-Identifier: GPL-2.0
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include <dt-bindings/leds/common.h>
#include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
#include "qcom-msm8974.dtsi"
#include "pm8841.dtsi"
#include "pm8941.dtsi"
/delete-node/ &mpss_region;
/ {
model = "Qualcomm APQ8074 Dragonboard";
compatible = "qcom,apq8074-dragonboard", "qcom,apq8074";
aliases {
serial0 = &blsp1_uart2;
usid0 = &pm8941_0;
usid4 = &pm8841_0;
};
chosen {
stdout-path = "serial0:115200n8";
};
gpio-keys {
compatible = "gpio-keys";
autorepeat;
pinctrl-0 = <&msm_keys_default>;
pinctrl-names = "default";
button-volup {
label = "Volume Up";
linux,code = <KEY_VOLUMEUP>;
gpios = <&pm8941_gpios 5 GPIO_ACTIVE_LOW>;
};
button-general {
label = "General";
linux,code = <KEY_PROG1>;
gpios = <&pm8941_gpios 23 GPIO_ACTIVE_LOW>;
};
};
reserved-memory {
mpss_region: mpss@ac00000 {
reg = <0x0ac00000 0x2500000>;
no-map;
};
};
vreg_boost: vreg-boost {
compatible = "regulator-fixed";
regulator-name = "vreg-boost";
regulator-min-microvolt = <3150000>;
regulator-max-microvolt = <3150000>;
regulator-always-on;
regulator-boot-on;
gpio = <&pm8941_gpios 21 GPIO_ACTIVE_HIGH>;
enable-active-high;
pinctrl-names = "default";
pinctrl-0 = <&boost_bypass_n_pin>;
};
vreg_vph_pwr: vreg-vph-pwr {
Annotation
- Immediate include surface: `dt-bindings/gpio/gpio.h`, `dt-bindings/input/input.h`, `dt-bindings/leds/common.h`, `dt-bindings/pinctrl/qcom,pmic-gpio.h`, `qcom-msm8974.dtsi`, `pm8841.dtsi`, `pm8941.dtsi`.
- Atlas domain: Architecture Layer / arch/arm.
- 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.