arch/arm/mach-s3c/setup-spi-s3c64xx.c

File Facts

System

Linux kernel

Corpus path

arch/arm/mach-s3c/setup-spi-s3c64xx.c

Extension

.c

Size

400 bytes

Lines

19

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.

• CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

• linux/gpio.h
• linux/platform_data/spi-s3c64xx.h
• gpio-cfg.h
• gpio-samsung.h

Detected Declarations

• function s3c64xx_spi0_cfg_gpio

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
//
// Copyright (C) 2011 Samsung Electronics Ltd.
//		http://www.samsung.com/

#include <linux/gpio.h>
#include <linux/platform_data/spi-s3c64xx.h>
#include "gpio-cfg.h"
#include "gpio-samsung.h"

#ifdef CONFIG_S3C64XX_DEV_SPI0
int s3c64xx_spi0_cfg_gpio(void)
{
	s3c_gpio_cfgall_range(S3C64XX_GPC(0), 3,
				S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
	return 0;
}
#endif

Annotation

• Immediate include surface: `linux/gpio.h`, `linux/platform_data/spi-s3c64xx.h`, `gpio-cfg.h`, `gpio-samsung.h`.
• Detected declarations: `function s3c64xx_spi0_cfg_gpio`.
• Atlas domain: Architecture Layer / arch/arm.
• Implementation status: source implementation candidate.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.