drivers/pinctrl/berlin/berlin-bg2cd.c

Source file repositories/reference/linux-study-clean/drivers/pinctrl/berlin/berlin-bg2cd.c

File Facts

System: Linux kernel
Corpus path: drivers/pinctrl/berlin/berlin-bg2cd.c
Extension: .c
Size: 6838 bytes
Lines: 187
Domain: Driver Families
Bucket: drivers/pinctrl
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.

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.
Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

linux/init.h
linux/of.h
linux/platform_device.h
linux/property.h
linux/regmap.h
berlin.h

Detected Declarations

function berlin2cd_pinctrl_probe

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Marvell Berlin BG2CD pinctrl driver.
 *
 * Copyright (C) 2014 Marvell Technology Group Ltd.
 *
 * Antoine Ténart <antoine.tenart@free-electrons.com>
 */

#include <linux/init.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/property.h>
#include <linux/regmap.h>

#include "berlin.h"

static const struct berlin_desc_group berlin2cd_soc_pinctrl_groups[] = {
	/* G */
	BERLIN_PINCTRL_GROUP("G0", 0x00, 0x3, 0x00,
		BERLIN_PINCTRL_FUNCTION(0x0, "jtag"),
		BERLIN_PINCTRL_FUNCTION(0x1, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x2, "led"),
		BERLIN_PINCTRL_FUNCTION(0x3, "pwm")),
	BERLIN_PINCTRL_GROUP("G1", 0x00, 0x3, 0x03,
		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),
		BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),
		BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
	BERLIN_PINCTRL_GROUP("G2", 0x00, 0x3, 0x06,
		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),
		BERLIN_PINCTRL_FUNCTION(0x2, "fe"),
		BERLIN_PINCTRL_FUNCTION(0x3, "pll"),
		BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),
		BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
	BERLIN_PINCTRL_GROUP("G3", 0x00, 0x3, 0x09,
		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),
		BERLIN_PINCTRL_FUNCTION(0x2, "twsi2"),
		BERLIN_PINCTRL_FUNCTION(0x3, "pll"),
		BERLIN_PINCTRL_FUNCTION(0x4, "fe"),
		BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),
		BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
	BERLIN_PINCTRL_GROUP("G4", 0x00, 0x3, 0x0c,
		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),
		BERLIN_PINCTRL_FUNCTION(0x2, "twsi3"),
		BERLIN_PINCTRL_FUNCTION(0x3, "pll"),
		BERLIN_PINCTRL_FUNCTION(0x4, "pwm"),
		BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),
		BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
	BERLIN_PINCTRL_GROUP("G5", 0x00, 0x3, 0x0f,
		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),
		BERLIN_PINCTRL_FUNCTION(0x2, "twsi3"),
		BERLIN_PINCTRL_FUNCTION(0x3, "arc"),
		BERLIN_PINCTRL_FUNCTION(0x4, "pwm"),
		BERLIN_PINCTRL_FUNCTION(0x6, "usb0_dbg"),
		BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
	BERLIN_PINCTRL_GROUP("G6", 0x00, 0x3, 0x12,
		BERLIN_PINCTRL_FUNCTION(0x0, "uart0"),	/* RX/TX */
		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
	BERLIN_PINCTRL_GROUP("G7", 0x00, 0x3, 0x15,
		BERLIN_PINCTRL_FUNCTION(0x0, "eddc"),
		BERLIN_PINCTRL_FUNCTION(0x1, "twsi1"),
		BERLIN_PINCTRL_FUNCTION(0x2, "gpio")),
	BERLIN_PINCTRL_GROUP("G8", 0x00, 0x3, 0x18,
		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* SS0n */
		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
	BERLIN_PINCTRL_GROUP("G9", 0x00, 0x3, 0x1b,
		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x1, "spi1"), /* SS1n/SS2n */
		BERLIN_PINCTRL_FUNCTION(0x3, "twsi0")),
	BERLIN_PINCTRL_GROUP("G10", 0x00, 0x2, 0x1e,
		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* CLK */
		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
	BERLIN_PINCTRL_GROUP("G11", 0x04, 0x2, 0x00,
		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* SDI/SDO */
		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
	BERLIN_PINCTRL_GROUP("G12", 0x04, 0x3, 0x02,
		BERLIN_PINCTRL_FUNCTION(0x0, "usb1"),
		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
	BERLIN_PINCTRL_GROUP("G13", 0x04, 0x3, 0x05,
		BERLIN_PINCTRL_FUNCTION(0x0, "nand"),
		BERLIN_PINCTRL_FUNCTION(0x1, "usb0_dbg"),
		BERLIN_PINCTRL_FUNCTION(0x2, "usb1_dbg")),
	BERLIN_PINCTRL_GROUP("G14", 0x04, 0x1, 0x08,
		BERLIN_PINCTRL_FUNCTION(0x0, "nand"),
		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),

Annotation

Immediate include surface: `linux/init.h`, `linux/of.h`, `linux/platform_device.h`, `linux/property.h`, `linux/regmap.h`, `berlin.h`.
Detected declarations: `function berlin2cd_pinctrl_probe`.
Atlas domain: Driver Families / drivers/pinctrl.
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.