drivers/acpi/pmic/intel_pmic_chtwc.c

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

File Facts

System
Linux kernel
Corpus path
drivers/acpi/pmic/intel_pmic_chtwc.c
Extension
.c
Size
6850 bytes
Lines
289
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
/*
 * Intel CHT Whiskey Cove PMIC operation region driver
 * Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
 *
 * Based on various non upstream patches to support the CHT Whiskey Cove PMIC:
 * Copyright (C) 2013-2015 Intel Corporation. All rights reserved.
 */

#include <linux/acpi.h>
#include <linux/init.h>
#include <linux/mfd/intel_soc_pmic.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include "intel_pmic.h"

#define CHT_WC_V1P05A_CTRL		0x6e3b
#define CHT_WC_V1P15_CTRL		0x6e3c
#define CHT_WC_V1P05A_VSEL		0x6e3d
#define CHT_WC_V1P15_VSEL		0x6e3e
#define CHT_WC_V1P8A_CTRL		0x6e56
#define CHT_WC_V1P8SX_CTRL		0x6e57
#define CHT_WC_VDDQ_CTRL		0x6e58
#define CHT_WC_V1P2A_CTRL		0x6e59
#define CHT_WC_V1P2SX_CTRL		0x6e5a
#define CHT_WC_V1P8A_VSEL		0x6e5b
#define CHT_WC_VDDQ_VSEL		0x6e5c
#define CHT_WC_V2P8SX_CTRL		0x6e5d
#define CHT_WC_V3P3A_CTRL		0x6e5e
#define CHT_WC_V3P3SD_CTRL		0x6e5f
#define CHT_WC_VSDIO_CTRL		0x6e67
#define CHT_WC_V3P3A_VSEL		0x6e68
#define CHT_WC_VPROG1A_CTRL		0x6e90
#define CHT_WC_VPROG1B_CTRL		0x6e91
#define CHT_WC_VPROG1F_CTRL		0x6e95
#define CHT_WC_VPROG2D_CTRL		0x6e99
#define CHT_WC_VPROG3A_CTRL		0x6e9a
#define CHT_WC_VPROG3B_CTRL		0x6e9b
#define CHT_WC_VPROG4A_CTRL		0x6e9c
#define CHT_WC_VPROG4B_CTRL		0x6e9d
#define CHT_WC_VPROG4C_CTRL		0x6e9e
#define CHT_WC_VPROG4D_CTRL		0x6e9f
#define CHT_WC_VPROG5A_CTRL		0x6ea0
#define CHT_WC_VPROG5B_CTRL		0x6ea1
#define CHT_WC_VPROG6A_CTRL		0x6ea2
#define CHT_WC_VPROG6B_CTRL		0x6ea3
#define CHT_WC_VPROG1A_VSEL		0x6ec0
#define CHT_WC_VPROG1B_VSEL		0x6ec1
#define CHT_WC_V1P8SX_VSEL		0x6ec2
#define CHT_WC_V1P2SX_VSEL		0x6ec3
#define CHT_WC_V1P2A_VSEL		0x6ec4
#define CHT_WC_VPROG1F_VSEL		0x6ec5
#define CHT_WC_VSDIO_VSEL		0x6ec6
#define CHT_WC_V2P8SX_VSEL		0x6ec7
#define CHT_WC_V3P3SD_VSEL		0x6ec8
#define CHT_WC_VPROG2D_VSEL		0x6ec9
#define CHT_WC_VPROG3A_VSEL		0x6eca
#define CHT_WC_VPROG3B_VSEL		0x6ecb
#define CHT_WC_VPROG4A_VSEL		0x6ecc
#define CHT_WC_VPROG4B_VSEL		0x6ecd
#define CHT_WC_VPROG4C_VSEL		0x6ece
#define CHT_WC_VPROG4D_VSEL		0x6ecf
#define CHT_WC_VPROG5A_VSEL		0x6ed0
#define CHT_WC_VPROG5B_VSEL		0x6ed1
#define CHT_WC_VPROG6A_VSEL		0x6ed2
#define CHT_WC_VPROG6B_VSEL		0x6ed3

/*
 * Regulator support is based on the non upstream patch:
 * "regulator: whiskey_cove: implements Whiskey Cove pmic VRF support"
 * https://github.com/intel-aero/meta-intel-aero/blob/master/recipes-kernel/linux/linux-yocto/0019-regulator-whiskey_cove-implements-WhiskeyCove-pmic-V.patch
 */
static const struct pmic_table power_table[] = {
	{
		.address = 0x0,
		.reg = CHT_WC_V1P8A_CTRL,
		.bit = 0x01,
	}, /* V18A */
	{
		.address = 0x04,
		.reg = CHT_WC_V1P8SX_CTRL,
		.bit = 0x07,
	}, /* V18X */
	{
		.address = 0x08,
		.reg = CHT_WC_VDDQ_CTRL,
		.bit = 0x01,
	}, /* VDDQ */
	{
		.address = 0x0c,

Annotation

Implementation Notes