drivers/acpi/pmic/intel_pmic_chtdc_ti.c

Source file repositories/reference/linux-study-clean/drivers/acpi/pmic/intel_pmic_chtdc_ti.c

File Facts

System
Linux kernel
Corpus path
drivers/acpi/pmic/intel_pmic_chtdc_ti.c
Extension
.c
Size
3596 bytes
Lines
141
Domain
Driver Families
Bucket
drivers/acpi
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
/*
 * Dollar Cove TI PMIC operation region driver
 * Copyright (C) 2014 Intel Corporation. All rights reserved.
 *
 * Rewritten and cleaned up
 * Copyright (C) 2017 Takashi Iwai <tiwai@suse.de>
 */

#include <linux/acpi.h>
#include <linux/bits.h>
#include <linux/init.h>
#include <linux/mfd/intel_soc_pmic.h>
#include <linux/platform_device.h>
#include <asm/byteorder.h>
#include "intel_pmic.h"

/* registers stored in 16bit BE (high:low, total 10bit) */
#define PMIC_REG_MASK		GENMASK(9, 0)

#define CHTDC_TI_VBAT		0x54
#define CHTDC_TI_DIETEMP	0x56
#define CHTDC_TI_BPTHERM	0x58
#define CHTDC_TI_GPADC		0x5a

static const struct pmic_table chtdc_ti_power_table[] = {
	{ .address = 0x00, .reg = 0x41 }, /* LDO1 */
	{ .address = 0x04, .reg = 0x42 }, /* LDO2 */
	{ .address = 0x08, .reg = 0x43 }, /* LDO3 */
	{ .address = 0x0c, .reg = 0x45 }, /* LDO5 */
	{ .address = 0x10, .reg = 0x46 }, /* LDO6 */
	{ .address = 0x14, .reg = 0x47 }, /* LDO7 */
	{ .address = 0x18, .reg = 0x48 }, /* LDO8 */
	{ .address = 0x1c, .reg = 0x49 }, /* LDO9 */
	{ .address = 0x20, .reg = 0x4a }, /* LD10 */
	{ .address = 0x24, .reg = 0x4b }, /* LD11 */
	{ .address = 0x28, .reg = 0x4c }, /* LD12 */
	{ .address = 0x2c, .reg = 0x4d }, /* LD13 */
	{ .address = 0x30, .reg = 0x4e }, /* LD14 */
};

static const struct pmic_table chtdc_ti_thermal_table[] = {
	{
		.address = 0x00,
		.reg = CHTDC_TI_GPADC
	},
	{
		.address = 0x0c,
		.reg = CHTDC_TI_GPADC
	},
	/* TMP2 -> SYSTEMP */
	{
		.address = 0x18,
		.reg = CHTDC_TI_GPADC
	},
	/* TMP3 -> BPTHERM */
	{
		.address = 0x24,
		.reg = CHTDC_TI_BPTHERM
	},
	{
		.address = 0x30,
		.reg = CHTDC_TI_GPADC
	},
	/* TMP5 -> DIETEMP */
	{
		.address = 0x3c,
		.reg = CHTDC_TI_DIETEMP
	},
};

static int chtdc_ti_pmic_get_power(struct regmap *regmap, int reg, int bit,
				   u64 *value)
{
	int data;

	if (regmap_read(regmap, reg, &data))
		return -EIO;

	*value = data & BIT(0);
	return 0;
}

static int chtdc_ti_pmic_update_power(struct regmap *regmap, int reg, int bit,
				      bool on)
{
	return regmap_update_bits(regmap, reg, 1, on);
}

static int chtdc_ti_pmic_get_raw_temp(struct regmap *regmap, int reg)

Annotation

Implementation Notes