drivers/mfd/bd9571mwv.c

Source file repositories/reference/linux-study-clean/drivers/mfd/bd9571mwv.c

File Facts

System
Linux kernel
Corpus path
drivers/mfd/bd9571mwv.c
Extension
.c
Size
9368 bytes
Lines
289
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.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0-only
/*
 * ROHM BD9571MWV-M and BD9574MVF-M core driver
 *
 * Copyright (C) 2017 Marek Vasut <marek.vasut+renesas@gmail.com>
 * Copyright (C) 2020 Renesas Electronics Corporation
 *
 * Based on the TPS65086 driver
 */

#include <linux/i2c.h>
#include <linux/interrupt.h>
#include <linux/mfd/core.h>
#include <linux/mfd/rohm-generic.h>
#include <linux/module.h>

#include <linux/mfd/bd9571mwv.h>

static const struct mfd_cell bd9571mwv_cells[] = {
	{ .name = "bd9571mwv-regulator", },
	{ .name = "bd9571mwv-gpio", },
};

static const struct regmap_range bd9571mwv_readable_yes_ranges[] = {
	regmap_reg_range(BD9571MWV_VENDOR_CODE, BD9571MWV_PRODUCT_REVISION),
	regmap_reg_range(BD9571MWV_BKUP_MODE_CNT, BD9571MWV_BKUP_MODE_CNT),
	regmap_reg_range(BD9571MWV_AVS_SET_MONI, BD9571MWV_AVS_DVFS_VID(3)),
	regmap_reg_range(BD9571MWV_VD18_VID, BD9571MWV_VD33_VID),
	regmap_reg_range(BD9571MWV_DVFS_VINIT, BD9571MWV_DVFS_VINIT),
	regmap_reg_range(BD9571MWV_DVFS_SETVMAX, BD9571MWV_DVFS_MONIVDAC),
	regmap_reg_range(BD9571MWV_GPIO_IN, BD9571MWV_GPIO_IN),
	regmap_reg_range(BD9571MWV_GPIO_INT, BD9571MWV_GPIO_INTMASK),
	regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTMASK),
};

static const struct regmap_access_table bd9571mwv_readable_table = {
	.yes_ranges	= bd9571mwv_readable_yes_ranges,
	.n_yes_ranges	= ARRAY_SIZE(bd9571mwv_readable_yes_ranges),
};

static const struct regmap_range bd9571mwv_writable_yes_ranges[] = {
	regmap_reg_range(BD9571MWV_BKUP_MODE_CNT, BD9571MWV_BKUP_MODE_CNT),
	regmap_reg_range(BD9571MWV_AVS_VD09_VID(0), BD9571MWV_AVS_VD09_VID(3)),
	regmap_reg_range(BD9571MWV_DVFS_SETVID, BD9571MWV_DVFS_SETVID),
	regmap_reg_range(BD9571MWV_GPIO_DIR, BD9571MWV_GPIO_OUT),
	regmap_reg_range(BD9571MWV_GPIO_INT_SET, BD9571MWV_GPIO_INTMASK),
	regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTMASK),
};

static const struct regmap_access_table bd9571mwv_writable_table = {
	.yes_ranges	= bd9571mwv_writable_yes_ranges,
	.n_yes_ranges	= ARRAY_SIZE(bd9571mwv_writable_yes_ranges),
};

static const struct regmap_range bd9571mwv_volatile_yes_ranges[] = {
	regmap_reg_range(BD9571MWV_DVFS_MONIVDAC, BD9571MWV_DVFS_MONIVDAC),
	regmap_reg_range(BD9571MWV_GPIO_IN, BD9571MWV_GPIO_IN),
	regmap_reg_range(BD9571MWV_GPIO_INT, BD9571MWV_GPIO_INT),
	regmap_reg_range(BD9571MWV_INT_INTREQ, BD9571MWV_INT_INTREQ),
};

static const struct regmap_access_table bd9571mwv_volatile_table = {
	.yes_ranges	= bd9571mwv_volatile_yes_ranges,
	.n_yes_ranges	= ARRAY_SIZE(bd9571mwv_volatile_yes_ranges),
};

static const struct regmap_config bd9571mwv_regmap_config = {
	.reg_bits	= 8,
	.val_bits	= 8,
	.cache_type	= REGCACHE_MAPLE,
	.rd_table	= &bd9571mwv_readable_table,
	.wr_table	= &bd9571mwv_writable_table,
	.volatile_table	= &bd9571mwv_volatile_table,
	.max_register	= 0xff,
};

static const struct regmap_irq bd9571mwv_irqs[] = {
	REGMAP_IRQ_REG(BD9571MWV_IRQ_MD1, 0,
		       BD9571MWV_INT_INTREQ_MD1_INT),
	REGMAP_IRQ_REG(BD9571MWV_IRQ_MD2_E1, 0,
		       BD9571MWV_INT_INTREQ_MD2_E1_INT),
	REGMAP_IRQ_REG(BD9571MWV_IRQ_MD2_E2, 0,
		       BD9571MWV_INT_INTREQ_MD2_E2_INT),
	REGMAP_IRQ_REG(BD9571MWV_IRQ_PROT_ERR, 0,
		       BD9571MWV_INT_INTREQ_PROT_ERR_INT),
	REGMAP_IRQ_REG(BD9571MWV_IRQ_GP, 0,
		       BD9571MWV_INT_INTREQ_GP_INT),
	REGMAP_IRQ_REG(BD9571MWV_IRQ_128H_OF, 0,
		       BD9571MWV_INT_INTREQ_128H_OF_INT),
	REGMAP_IRQ_REG(BD9571MWV_IRQ_WDT_OF, 0,

Annotation

Implementation Notes