drivers/pinctrl/berlin/pinctrl-as370.c

Source file repositories/reference/linux-study-clean/drivers/pinctrl/berlin/pinctrl-as370.c

File Facts

System: Linux kernel
Corpus path: drivers/pinctrl/berlin/pinctrl-as370.c
Extension: .c
Size: 17214 bytes
Lines: 369
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.
Allocates kernel memory; connect allocation flags and lifetime to context constraints.
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 as370_pinctrl_probe

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * Synaptics AS370 pinctrl driver
 *
 * Copyright (C) 2018 Synaptics Incorporated
 *
 * Author: Jisheng Zhang <jszhang@kernel.org>
 */

#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 as370_soc_pinctrl_groups[] = {
	BERLIN_PINCTRL_GROUP("I2S1_BCLKIO", 0x0, 0x3, 0x00,
			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"), /* GPIO0 */
			BERLIN_PINCTRL_FUNCTION(0x1, "i2s1"), /* BCLKIO */
			BERLIN_PINCTRL_FUNCTION(0x5, "phy")), /* DBG0 */
	BERLIN_PINCTRL_GROUP("I2S1_LRCKIO", 0x0, 0x3, 0x03,
			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"), /* GPIO1 */
			BERLIN_PINCTRL_FUNCTION(0x1, "i2s1"), /* LRCKIO */
			BERLIN_PINCTRL_FUNCTION(0x5, "phy")), /* DBG1 */
	BERLIN_PINCTRL_GROUP("I2S1_DO0", 0x0, 0x3, 0x06,
			BERLIN_PINCTRL_FUNCTION(0x0, "por"), /* 1P8V RSTB*/
			BERLIN_PINCTRL_FUNCTION(0x1, "i2s1"), /* DO0 */
			BERLIN_PINCTRL_FUNCTION(0x3, "gpio"), /* GPIO2 */
			BERLIN_PINCTRL_FUNCTION(0x5, "phy")), /* DBG2 */
	BERLIN_PINCTRL_GROUP("I2S1_DO1", 0x0, 0x3, 0x09,
			BERLIN_PINCTRL_FUNCTION(0x0, "por"), /* 3P3V RSTB */
			BERLIN_PINCTRL_FUNCTION(0x1, "i2s1"), /* DO1 */
			BERLIN_PINCTRL_FUNCTION(0x3, "gpio"), /* GPIO3 */
			BERLIN_PINCTRL_FUNCTION(0x5, "phy")), /* DBG3 */
	BERLIN_PINCTRL_GROUP("I2S1_DO2", 0x0, 0x3, 0x0c,
			BERLIN_PINCTRL_FUNCTION(0x0, "por"), /* CORE RSTB */
			BERLIN_PINCTRL_FUNCTION(0x1, "i2s1"), /* DO2 */
			BERLIN_PINCTRL_FUNCTION(0x2, "pwm"), /* PWM4 */
			BERLIN_PINCTRL_FUNCTION(0x3, "gpio"), /* GPIO4 */
			BERLIN_PINCTRL_FUNCTION(0x5, "phy")), /* DBG4 */
	BERLIN_PINCTRL_GROUP("I2S1_DO3", 0x0, 0x3, 0x0f,
			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"), /* GPIO5 */
			BERLIN_PINCTRL_FUNCTION(0x1, "i2s1"), /* DO3 */
			BERLIN_PINCTRL_FUNCTION(0x2, "pwm"), /* PWM5 */
			BERLIN_PINCTRL_FUNCTION(0x3, "spdifib"), /* SPDIFIB */
			BERLIN_PINCTRL_FUNCTION(0x4, "spdifo"), /* SPDIFO */
			BERLIN_PINCTRL_FUNCTION(0x5, "phy")), /* DBG5 */
	BERLIN_PINCTRL_GROUP("I2S1_MCLK", 0x0, 0x3, 0x12,
			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"), /* GPIO6 */
			BERLIN_PINCTRL_FUNCTION(0x1, "i2s1"), /* MCLK */
			BERLIN_PINCTRL_FUNCTION(0x5, "phy")), /* DBG6 */
	BERLIN_PINCTRL_GROUP("I2S2_BCLKIO", 0x0, 0x3, 0x15,
			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"), /* GPIO7 */
			BERLIN_PINCTRL_FUNCTION(0x1, "i2s2"), /* BCLKIO */
			BERLIN_PINCTRL_FUNCTION(0x5, "phy")), /* DBG7 */
	BERLIN_PINCTRL_GROUP("I2S2_LRCKIO", 0x0, 0x3, 0x18,
			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"), /* GPIO8 */
			BERLIN_PINCTRL_FUNCTION(0x1, "i2s2"), /* LRCKIO */
			BERLIN_PINCTRL_FUNCTION(0x5, "phy")), /* DBG8 */
	BERLIN_PINCTRL_GROUP("I2S2_DI0", 0x0, 0x3, 0x1b,
			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"), /* GPIO9 */
			BERLIN_PINCTRL_FUNCTION(0x1, "i2s2"), /* DI0 */
			BERLIN_PINCTRL_FUNCTION(0x2, "pwm"), /* PWM2 */
			BERLIN_PINCTRL_FUNCTION(0x5, "phy")), /* DBG9 */
	BERLIN_PINCTRL_GROUP("I2S2_DI1", 0x4, 0x3, 0x00,
			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"), /* GPIO10 */
			BERLIN_PINCTRL_FUNCTION(0x1, "i2s2"), /* DI1 */
			BERLIN_PINCTRL_FUNCTION(0x2, "pwm"), /* PWM3 */
			BERLIN_PINCTRL_FUNCTION(0x5, "phy")), /* DBG10 */
	BERLIN_PINCTRL_GROUP("I2S2_DI2", 0x4, 0x3, 0x03,
			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"), /* GPIO11 */
			BERLIN_PINCTRL_FUNCTION(0x1, "i2s2"), /* DI2 */
			BERLIN_PINCTRL_FUNCTION(0x2, "pwm"), /* PWM6 */
			BERLIN_PINCTRL_FUNCTION(0x3, "spdific"), /* SPDIFIC */
			BERLIN_PINCTRL_FUNCTION(0x4, "spdifo"), /* SPDIFO */
			BERLIN_PINCTRL_FUNCTION(0x5, "phy")), /* DBG11 */
	BERLIN_PINCTRL_GROUP("I2S2_DI3", 0x4, 0x3, 0x06,
			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"), /* GPIO12 */
			BERLIN_PINCTRL_FUNCTION(0x1, "i2s2"), /* DI3 */
			BERLIN_PINCTRL_FUNCTION(0x2, "pwm"), /* PWM7 */
			BERLIN_PINCTRL_FUNCTION(0x3, "spdifia"), /* SPDIFIA */
			BERLIN_PINCTRL_FUNCTION(0x4, "spdifo"), /* SPDIFO */
			BERLIN_PINCTRL_FUNCTION(0x5, "phy")), /* DBG12 */
	BERLIN_PINCTRL_GROUP("PDM_CLKO", 0x4, 0x3, 0x09,
			BERLIN_PINCTRL_FUNCTION(0x0, "gpio"), /* GPIO13 */
			BERLIN_PINCTRL_FUNCTION(0x1, "pdm"), /* CLKO */
			BERLIN_PINCTRL_FUNCTION(0x2, "i2s2"), /* MCLK */
			BERLIN_PINCTRL_FUNCTION(0x5, "phy")), /* DBG13 */

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 as370_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.