arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts
Extension
.dts
Size
3247 bytes
Lines
146
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: GPL-2.0-only

/dts-v1/;

#include <dt-bindings/regulator/qcom,rpmh-regulator.h>

#include "sm8450.dtsi"
#include "pm8350.dtsi"
#include "pm8350c.dtsi"

/ {
	model = "Samsung Galaxy S22 5G";
	compatible = "samsung,r0q", "qcom,sm8450";
	chassis-type = "handset";

	chosen {
		#address-cells = <2>;
		#size-cells = <2>;
		ranges;

		framebuffer: framebuffer@b8000000 {
			compatible = "simple-framebuffer";
			reg = <0x0 0xb8000000 0x0 0x2b00000>;
			width = <1080>;
			height = <2340>;
			stride = <(1080 * 4)>;
			format = "a8r8g8b8";
		};
	};

	vph_pwr: regulator-vph-pwr {
		compatible = "regulator-fixed";
		regulator-name = "vph_pwr";
		regulator-min-microvolt = <3700000>;
		regulator-max-microvolt = <3700000>;
		regulator-always-on;
		regulator-boot-on;
	};

	reserved-memory {
		/*
		 * The bootloader will only keep display hardware enabled
		 * if this memory region is named exactly 'splash_region'
		 */
		splash-region@b8000000 {
			reg = <0x0 0xb8000000 0x0 0x2b00000>;
			no-map;
		};
	};
};

&apps_rsc {
	regulators-0 {
		compatible = "qcom,pm8350-rpmh-regulators";
		qcom,pmic-id = "b";

		vdd-s1-supply = <&vph_pwr>;
		vdd-s2-supply = <&vph_pwr>;
		vdd-s3-supply = <&vph_pwr>;
		vdd-s4-supply = <&vph_pwr>;
		vdd-s5-supply = <&vph_pwr>;
		vdd-s6-supply = <&vph_pwr>;
		vdd-s7-supply = <&vph_pwr>;
		vdd-s8-supply = <&vph_pwr>;
		vdd-s9-supply = <&vph_pwr>;
		vdd-s10-supply = <&vph_pwr>;
		vdd-s11-supply = <&vph_pwr>;
		vdd-s12-supply = <&vph_pwr>;

		vdd-l2-l7-supply = <&vreg_bob>;

Annotation

Implementation Notes