linux/drivers/acpi/pmic/tps68470_pmic.c

// SPDX-License-Identifier: GPL-2.0
/*
 * TI TPS68470 PMIC operation region driver
 *
 * Copyright (C) 2017 Intel Corporation. All rights reserved.
 *
 * Author: Rajmohan Mani <[email protected]>
 *
 * Based on drivers/acpi/pmic/intel_pmic* drivers
 */

#include <linux/acpi.h>
#include <linux/init.h>
#include <linux/mfd/tps68470.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>

struct tps68470_pmic_table { … };

#define TI_PMIC_POWER_OPREGION_ID …
#define TI_PMIC_VR_VAL_OPREGION_ID …
#define TI_PMIC_CLOCK_OPREGION_ID …
#define TI_PMIC_CLKFREQ_OPREGION_ID …

struct tps68470_pmic_opregion { … };

#define S_IO_I2C_EN …

static const struct tps68470_pmic_table power_table[] = …;

/* Table to set voltage regulator value */
static const struct tps68470_pmic_table vr_val_table[] = …;

/* Table to configure clock frequency */
static const struct tps68470_pmic_table clk_freq_table[] = …;

/* Table to configure and enable clocks */
static const struct tps68470_pmic_table clk_table[] = …;

static int pmic_get_reg_bit(u64 address,
			    const struct tps68470_pmic_table *table,
			    const unsigned int table_size, int *reg,
			    int *bitmask)
{ … }

static int tps68470_pmic_get_power(struct regmap *regmap, int reg,
				       int bitmask, u64 *value)
{ … }

static int tps68470_pmic_get_vr_val(struct regmap *regmap, int reg,
				       int bitmask, u64 *value)
{ … }

static int tps68470_pmic_get_clk(struct regmap *regmap, int reg,
				       int bitmask, u64 *value)
{ … }

static int tps68470_pmic_get_clk_freq(struct regmap *regmap, int reg,
				       int bitmask, u64 *value)
{ … }

static int ti_tps68470_regmap_update_bits(struct regmap *regmap, int reg,
					int bitmask, u64 value)
{ … }

static acpi_status tps68470_pmic_common_handler(u32 function,
					  acpi_physical_address address,
					  u32 bits, u64 *value,
					  void *region_context,
					  int (*get)(struct regmap *,
						     int, int, u64 *),
					  int (*update)(struct regmap *,
							int, int, u64),
					  const struct tps68470_pmic_table *tbl,
					  unsigned int tbl_size)
{ … }

static acpi_status tps68470_pmic_cfreq_handler(u32 function,
					    acpi_physical_address address,
					    u32 bits, u64 *value,
					    void *handler_context,
					    void *region_context)
{ … }

static acpi_status tps68470_pmic_clk_handler(u32 function,
				       acpi_physical_address address, u32 bits,
				       u64 *value, void *handler_context,
				       void *region_context)
{ … }

static acpi_status tps68470_pmic_vrval_handler(u32 function,
					  acpi_physical_address address,
					  u32 bits, u64 *value,
					  void *handler_context,
					  void *region_context)
{ … }

static acpi_status tps68470_pmic_pwr_handler(u32 function,
					 acpi_physical_address address,
					 u32 bits, u64 *value,
					 void *handler_context,
					 void *region_context)
{ … }

static int tps68470_pmic_opregion_probe(struct platform_device *pdev)
{ … }

static struct platform_driver tps68470_pmic_opregion_driver = …;

builtin_platform_driver(…) …