drivers/pmdomain/renesas/r8a77970-sysc.c

Source file repositories/reference/linux-study-clean/drivers/pmdomain/renesas/r8a77970-sysc.c

File Facts

System
Linux kernel
Corpus path
drivers/pmdomain/renesas/r8a77970-sysc.c
Extension
.c
Size
1260 bytes
Lines
38
Domain
Driver Families
Bucket
drivers/pmdomain
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Renesas R-Car V3M System Controller
 *
 * Copyright (C) 2017 Cogent Embedded Inc.
 */

#include <linux/bits.h>
#include <linux/kernel.h>

#include <dt-bindings/power/r8a77970-sysc.h>

#include "rcar-sysc.h"

static const struct rcar_sysc_area r8a77970_areas[] __initconst = {
	{ "always-on",	    0, 0, R8A77970_PD_ALWAYS_ON, -1, PD_ALWAYS_ON },
	{ "ca53-scu",	0x140, 0, R8A77970_PD_CA53_SCU,	R8A77970_PD_ALWAYS_ON,
	  PD_SCU },
	{ "ca53-cpu0",	0x200, 0, R8A77970_PD_CA53_CPU0, R8A77970_PD_CA53_SCU,
	  PD_CPU_NOCR },
	{ "ca53-cpu1",	0x200, 1, R8A77970_PD_CA53_CPU1, R8A77970_PD_CA53_SCU,
	  PD_CPU_NOCR },
	{ "a3ir",	0x180, 0, R8A77970_PD_A3IR,	R8A77970_PD_ALWAYS_ON },
	{ "a2ir0",	0x400, 0, R8A77970_PD_A2IR0,	R8A77970_PD_A3IR },
	{ "a2ir1",	0x400, 1, R8A77970_PD_A2IR1,	R8A77970_PD_A3IR },
	{ "a2dp",	0x400, 2, R8A77970_PD_A2DP,	R8A77970_PD_A3IR },
	{ "a2cn",	0x400, 3, R8A77970_PD_A2CN,	R8A77970_PD_A3IR },
	{ "a2sc0",	0x400, 4, R8A77970_PD_A2SC0,	R8A77970_PD_A3IR },
	{ "a2sc1",	0x400, 5, R8A77970_PD_A2SC1,	R8A77970_PD_A3IR },
};

const struct rcar_sysc_info r8a77970_sysc_info __initconst = {
	.areas = r8a77970_areas,
	.num_areas = ARRAY_SIZE(r8a77970_areas),
	.extmask_offs = 0x1b0,
	.extmask_val = BIT(0),
};

Annotation

Implementation Notes