arch/arm64/boot/dts/qcom/sa8155p.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/qcom/sa8155p.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/qcom/sa8155p.dtsi
Extension
.dtsi
Size
994 bytes
Lines
49
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) 2023, Linaro Limited
 *
 * SA8155P is an automotive variant of SM8150, with some minor changes.
 * Most notably, the RPMhPD setup differs: MMCX and LCX/LMX rails are gone,
 * though the cmd-db doesn't reflect that and access attemps result in a bite.
 */

#include "sm8150.dtsi"

&camcc {
	power-domains = <&rpmhpd SA8155P_CX>;
};

&dispcc {
	power-domains = <&rpmhpd SA8155P_CX>;
};

&mdss_dsi0 {
	power-domains = <&rpmhpd SA8155P_CX>;
};

&mdss_dsi1 {
	power-domains = <&rpmhpd SA8155P_CX>;
};

&mdss_mdp {
	power-domains = <&rpmhpd SA8155P_CX>;
};

&remoteproc_slpi {
	power-domains = <&rpmhpd SA8155P_CX>,
			<&rpmhpd SA8155P_MX>;
};

&rpmhpd {
	/*
	 * The bindings were crafted such that SA8155P PDs match their
	 * SM8150 counterparts to make it more maintainable and only
	 * necessitate adjusting entries that actually differ
	 */
	compatible = "qcom,sa8155p-rpmhpd";
};

&videocc {
	power-domains = <&rpmhpd SA8155P_CX>;
};

Annotation

Implementation Notes