arch/arm/mach-imx/pm-imx25.c

Source file repositories/reference/linux-study-clean/arch/arm/mach-imx/pm-imx25.c

File Facts

System
Linux kernel
Corpus path
arch/arm/mach-imx/pm-imx25.c
Extension
.c
Size
598 bytes
Lines
36
Domain
Architecture Layer
Bucket
arch/arm
Inferred role
Architecture Layer: implementation source
Status
source implementation candidate

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
/*
 * Copyright 2016 NXP Semiconductors
 */

#include <linux/kernel.h>
#include <linux/suspend.h>
#include <linux/io.h>
#include "common.h"

static int imx25_suspend_enter(suspend_state_t state)
{
	if (!IS_ENABLED(CONFIG_PM))
		return 0;

	switch (state) {
	case PM_SUSPEND_MEM:
		cpu_do_idle();
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static const struct platform_suspend_ops imx25_suspend_ops = {
	.enter = imx25_suspend_enter,
	.valid = suspend_valid_only_mem,
};

void __init imx25_pm_init(void)
{
	suspend_set_ops(&imx25_suspend_ops);
}

Annotation

Implementation Notes