drivers/pinctrl/berlin/berlin-bg2.c

Source file repositories/reference/linux-study-clean/drivers/pinctrl/berlin/berlin-bg2.c

File Facts

System
Linux kernel
Corpus path
drivers/pinctrl/berlin/berlin-bg2.c
Extension
.c
Size
9199 bytes
Lines
242
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.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Marvell Berlin BG2 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 berlin2_soc_pinctrl_groups[] = {
	/* G */
	BERLIN_PINCTRL_GROUP("G0", 0x00, 0x1, 0x00,
		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* SS0n */
		BERLIN_PINCTRL_FUNCTION(0x1, "gpio")),
	BERLIN_PINCTRL_GROUP("G1", 0x00, 0x2, 0x01,
		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* SS1n */
		BERLIN_PINCTRL_FUNCTION(0x1, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x2, "usb1")),
	BERLIN_PINCTRL_GROUP("G2", 0x00, 0x2, 0x02,
		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x1, "spi1"), /* SS2n */
		BERLIN_PINCTRL_FUNCTION(0x2, "pwm"),
		BERLIN_PINCTRL_FUNCTION(0x3, "i2s0")),
	BERLIN_PINCTRL_GROUP("G3", 0x00, 0x2, 0x04,
		BERLIN_PINCTRL_FUNCTION(0x0, "soc"),
		BERLIN_PINCTRL_FUNCTION(0x1, "spi1"), /* SS3n */
		BERLIN_PINCTRL_FUNCTION(0x2, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x3, "i2s1")),
	BERLIN_PINCTRL_GROUP("G4", 0x00, 0x2, 0x06,
		BERLIN_PINCTRL_FUNCTION(0x0, "spi1"), /* CLK/SDI/SDO */
		BERLIN_PINCTRL_FUNCTION(0x1, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x2, "pwm")),
	BERLIN_PINCTRL_GROUP("G5", 0x00, 0x3, 0x08,
		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x1, "sts1"),
		BERLIN_PINCTRL_FUNCTION(0x2, "et"),
		/*
		 * Mode 0x3 mux i2s2 mclk *and* i2s3 mclk:
		 * add two functions so it can be used with other groups
		 * within the same subnode in the device tree
		 */
		BERLIN_PINCTRL_FUNCTION(0x3, "i2s2"),
		BERLIN_PINCTRL_FUNCTION(0x3, "i2s3")),
	BERLIN_PINCTRL_GROUP("G6", 0x00, 0x2, 0x0b,
		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x1, "sts0"),
		BERLIN_PINCTRL_FUNCTION(0x2, "et")),
	BERLIN_PINCTRL_GROUP("G7", 0x00, 0x3, 0x0d,
		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x1, "sts0"),
		BERLIN_PINCTRL_FUNCTION(0x2, "et"),
		BERLIN_PINCTRL_FUNCTION(0x3, "vdac")),
	BERLIN_PINCTRL_GROUP("G8", 0x00, 0x3, 0x10,
		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),
		BERLIN_PINCTRL_FUNCTION(0x2, "et"),
		BERLIN_PINCTRL_FUNCTION(0x3, "usb0_dbg"),
		BERLIN_PINCTRL_FUNCTION(0x4, "sata_dbg"),
		BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
	BERLIN_PINCTRL_GROUP("G9", 0x00, 0x3, 0x13,
		BERLIN_PINCTRL_FUNCTION(0x0, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x1, "sd0"),
		BERLIN_PINCTRL_FUNCTION(0x2, "et"),
		BERLIN_PINCTRL_FUNCTION(0x3, "usb0_dbg"),
		BERLIN_PINCTRL_FUNCTION(0x4, "sata_dbg"),
		BERLIN_PINCTRL_FUNCTION(0x7, "usb1_dbg")),
	BERLIN_PINCTRL_GROUP("G10", 0x00, 0x2, 0x16,
		BERLIN_PINCTRL_FUNCTION(0x0, "soc"),
		BERLIN_PINCTRL_FUNCTION(0x1, "twsi0"),
		BERLIN_PINCTRL_FUNCTION(0x2, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x3, "ptp")),
	BERLIN_PINCTRL_GROUP("G11", 0x00, 0x2, 0x18,
		BERLIN_PINCTRL_FUNCTION(0x0, "soc"),
		BERLIN_PINCTRL_FUNCTION(0x1, "twsi1"),
		BERLIN_PINCTRL_FUNCTION(0x2, "gpio"),
		BERLIN_PINCTRL_FUNCTION(0x3, "eddc")),
	BERLIN_PINCTRL_GROUP("G12", 0x00, 0x3, 0x1a,
		BERLIN_PINCTRL_FUNCTION(0x0, "sts2"),
		BERLIN_PINCTRL_FUNCTION(0x1, "sata"),
		BERLIN_PINCTRL_FUNCTION(0x2, "sd1"),
		BERLIN_PINCTRL_FUNCTION(0x3, "usb0_dbg"),
		BERLIN_PINCTRL_FUNCTION(0x4, "sts1"),

Annotation

Implementation Notes