drivers/mfd/mt6370.c

Source file repositories/reference/linux-study-clean/drivers/mfd/mt6370.c

File Facts

System: Linux kernel
Corpus path: drivers/mfd/mt6370.c
Extension: .c
Size: 9990 bytes
Lines: 313
Domain: Driver Families
Bucket: drivers/mfd
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/bits.h
linux/bitfield.h
linux/i2c.h
linux/interrupt.h
linux/kernel.h
linux/mfd/core.h
linux/module.h
linux/regmap.h
mt6370.h

Detected Declarations

function mt6370_check_vendor_info
function mt6370_regmap_read
function mt6370_regmap_write
function mt6370_probe

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (C) 2022 Richtek Technology Corp.
 *
 * Author: ChiYuan Huang <cy_huang@richtek.com>
 */

#include <linux/bits.h>
#include <linux/bitfield.h>
#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/mfd/core.h>
#include <linux/module.h>
#include <linux/regmap.h>

#include "mt6370.h"

#define MT6370_REG_DEV_INFO	0x100
#define MT6370_REG_CHG_IRQ1	0x1C0
#define MT6370_REG_CHG_MASK1	0x1E0
#define MT6370_REG_MAXADDR	0x1FF

#define MT6370_VENID_MASK	GENMASK(7, 4)

#define MT6370_NUM_IRQREGS	16
#define MT6370_USBC_I2CADDR	0x4E
#define MT6370_MAX_ADDRLEN	2

#define MT6370_VENID_RT5081	0x8
#define MT6370_VENID_RT5081A	0xA
#define MT6370_VENID_MT6370	0xE
#define MT6370_VENID_MT6371	0xF
#define MT6370_VENID_MT6372P	0x9
#define MT6370_VENID_MT6372CP	0xB

static const struct regmap_irq mt6370_irqs[] = {
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DIRCHGON, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_TREG, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_AICR, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_MIVR, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_PWR_RDY, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_FL_CHG_VINOVP, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_VSYSUV, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_VSYSOV, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_VBATOV, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_VINOVPCHG, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_TS_BAT_COLD, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_TS_BAT_COOL, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_TS_BAT_WARM, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_TS_BAT_HOT, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_TS_STATC, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_FAULT, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_STATC, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_TMR, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_BATABS, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_ADPBAD, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_RVP, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_TSHUTDOWN, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_IINMEAS, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_ICCMEAS, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHGDET_DONE, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_WDTMR, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_SSFINISH, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_RECHG, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_TERM, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_IEOC, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_ADC_DONE, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_PUMPX_DONE, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_BST_BATUV, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_BST_MIDOV, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_BST_OLP, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_ATTACH, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DETACH, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_HVDCP_STPDONE, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_HVDCP_VBUSDET_DONE, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_HVDCP_DET, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHGDET, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DCDT, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DIRCHG_VGOK, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DIRCHG_WDTMR, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DIRCHG_UC, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DIRCHG_OC, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DIRCHG_OV, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_OVPCTRL_SWON, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_OVPCTRL_UVP_D, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_OVPCTRL_UVP, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_OVPCTRL_OVP_D, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_OVPCTRL_OVP, 8),
	REGMAP_IRQ_REG_LINE(MT6370_IRQ_FLED_STRBPIN, 8),

Annotation

Immediate include surface: `linux/bits.h`, `linux/bitfield.h`, `linux/i2c.h`, `linux/interrupt.h`, `linux/kernel.h`, `linux/mfd/core.h`, `linux/module.h`, `linux/regmap.h`.
Detected declarations: `function mt6370_check_vendor_info`, `function mt6370_regmap_read`, `function mt6370_regmap_write`, `function mt6370_probe`.
Atlas domain: Driver Families / drivers/mfd.
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.