drivers/mfd/wm8997-tables.c

Source file repositories/reference/linux-study-clean/drivers/mfd/wm8997-tables.c

File Facts

System
Linux kernel
Corpus path
drivers/mfd/wm8997-tables.c
Extension
.c
Size
69191 bytes
Lines
1531
Domain
Driver Families
Bucket
drivers/mfd
Inferred role
Driver Families: exported/initcall integration point
Status
integration 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-only
/*
 * wm8997-tables.c  --  WM8997 data tables
 *
 * Copyright 2012 Wolfson Microelectronics plc
 *
 * Author: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
 */

#include <linux/module.h>

#include <linux/mfd/arizona/core.h>
#include <linux/mfd/arizona/registers.h>

#include "arizona.h"

static const struct reg_sequence wm8997_reva_patch[] = {
	{ 0x80, 0x0003 },
	{ 0x214, 0x0008 },
	{ 0x458, 0x0000 },
	{ 0x0081, 0xE022 },
	{ 0x294, 0x0000 },
	{ 0x80, 0x0000 },
	{ 0x171, 0x0000 },
};

/* We use a function so we can use ARRAY_SIZE() */
int wm8997_patch(struct arizona *arizona)
{
	switch (arizona->rev) {
	case 0:
		return regmap_register_patch(arizona->regmap,
					     wm8997_reva_patch,
					     ARRAY_SIZE(wm8997_reva_patch));
	default:
		return 0;
	}
}
EXPORT_SYMBOL_GPL(wm8997_patch);

static const struct regmap_irq wm8997_aod_irqs[ARIZONA_NUM_IRQ] = {
	[ARIZONA_IRQ_GP5_FALL] = { .mask = ARIZONA_GP5_FALL_EINT1 },
	[ARIZONA_IRQ_GP5_RISE] = { .mask = ARIZONA_GP5_RISE_EINT1 },
	[ARIZONA_IRQ_JD_FALL] = { .mask = ARIZONA_JD1_FALL_EINT1 },
	[ARIZONA_IRQ_JD_RISE] = { .mask = ARIZONA_JD1_RISE_EINT1 },
};

const struct regmap_irq_chip wm8997_aod = {
	.name = "wm8997 AOD",
	.status_base = ARIZONA_AOD_IRQ1,
	.mask_base = ARIZONA_AOD_IRQ_MASK_IRQ1,
	.ack_base = ARIZONA_AOD_IRQ1,
	.num_regs = 1,
	.irqs = wm8997_aod_irqs,
	.num_irqs = ARRAY_SIZE(wm8997_aod_irqs),
};
EXPORT_SYMBOL_GPL(wm8997_aod);

static const struct regmap_irq wm8997_irqs[ARIZONA_NUM_IRQ] = {
	[ARIZONA_IRQ_GP4] = { .reg_offset = 0, .mask = ARIZONA_GP4_EINT1 },
	[ARIZONA_IRQ_GP3] = { .reg_offset = 0, .mask = ARIZONA_GP3_EINT1 },
	[ARIZONA_IRQ_GP2] = { .reg_offset = 0, .mask = ARIZONA_GP2_EINT1 },
	[ARIZONA_IRQ_GP1] = { .reg_offset = 0, .mask = ARIZONA_GP1_EINT1 },

	[ARIZONA_IRQ_SPK_OVERHEAT_WARN] = {
		.reg_offset = 2, .mask = ARIZONA_SPK_OVERHEAT_WARN_EINT1
	},
	[ARIZONA_IRQ_SPK_OVERHEAT] = {
		.reg_offset = 2, .mask = ARIZONA_SPK_OVERHEAT_EINT1
	},
	[ARIZONA_IRQ_HPDET] = {
		.reg_offset = 2, .mask = ARIZONA_HPDET_EINT1
	},
	[ARIZONA_IRQ_MICDET] = {
		.reg_offset = 2, .mask = ARIZONA_MICDET_EINT1
	},
	[ARIZONA_IRQ_WSEQ_DONE] = {
		.reg_offset = 2, .mask = ARIZONA_WSEQ_DONE_EINT1
	},
	[ARIZONA_IRQ_DRC1_SIG_DET] = {
		.reg_offset = 2, .mask = ARIZONA_DRC1_SIG_DET_EINT1
	},
	[ARIZONA_IRQ_UNDERCLOCKED] = {
		.reg_offset = 2, .mask = ARIZONA_UNDERCLOCKED_EINT1
	},
	[ARIZONA_IRQ_OVERCLOCKED] = {
		.reg_offset = 2, .mask = ARIZONA_OVERCLOCKED_EINT1
	},
	[ARIZONA_IRQ_FLL2_LOCK] = {
		.reg_offset = 2, .mask = ARIZONA_FLL2_LOCK_EINT1

Annotation

Implementation Notes