arch/arm64/boot/dts/qcom/msm8916-modem-qdsp6.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/qcom/msm8916-modem-qdsp6.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/qcom/msm8916-modem-qdsp6.dtsi
Extension
.dtsi
Size
2529 bytes
Lines
149
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 OR BSD-3-Clause)
/*
 * msm8916-modem-qdsp6.dtsi describes the typical modem setup on MSM8916 devices
 * (or similar SoCs) with audio routed via the QDSP6 services provided by the
 * modem firmware. The digital/analog codec in the SoC/PMIC is used by default,
 * but boards can define additional codecs by adding additional backend DAI links.
 */

#include <dt-bindings/sound/qcom,q6afe.h>
#include <dt-bindings/sound/qcom,q6asm.h>

&apr {
	status = "okay";
};

&bam_dmux {
	status = "okay";
};

&bam_dmux_dma {
	status = "okay";
};

&lpass {
	status = "reserved"; /* Controlled by QDSP6 */
};

&lpass_codec {
	status = "okay";
};

&mba_mem {
	status = "okay";
};

&mpss {
	status = "okay";
};

&mpss_mem {
	status = "okay";
};

&pm8916_codec {
	status = "okay";
};

&q6afedai {
	dai@16 {
		reg = <PRIMARY_MI2S_RX>;
		qcom,sd-lines = <0 1>;
	};
	dai@20 {
		reg = <TERTIARY_MI2S_TX>;
		qcom,sd-lines = <0 1>;
	};
};

&q6asmdai {
	dai@0 {
		reg = <MSM_FRONTEND_DAI_MULTIMEDIA1>;
		direction = <Q6ASM_DAI_RX>;
	};
	dai@1 {
		reg = <MSM_FRONTEND_DAI_MULTIMEDIA2>;
		direction = <Q6ASM_DAI_TX>;
	};
	dai@2 {
		reg = <MSM_FRONTEND_DAI_MULTIMEDIA3>;
		direction = <Q6ASM_DAI_RX>;

Annotation

Implementation Notes