lp8788-buck.c | Explore in Territory

// SPDX-License-Identifier: GPL-2.0-only
/*
 * TI LP8788 MFD - buck regulator driver
 *
 * Copyright 2012 Texas Instruments
 *
 * Author: Milo(Woogyom) Kim <[email protected]>
 */

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/regulator/driver.h>
#include <linux/mfd/lp8788.h>
#include <linux/gpio/consumer.h>

/* register address */
#define LP8788_EN_BUCK …
#define LP8788_BUCK_DVS_SEL …
#define LP8788_BUCK1_VOUT0 …
#define LP8788_BUCK1_VOUT1 …
#define LP8788_BUCK1_VOUT2 …
#define LP8788_BUCK1_VOUT3 …
#define LP8788_BUCK2_VOUT0 …
#define LP8788_BUCK2_VOUT1 …
#define LP8788_BUCK2_VOUT2 …
#define LP8788_BUCK2_VOUT3 …
#define LP8788_BUCK3_VOUT …
#define LP8788_BUCK4_VOUT …
#define LP8788_BUCK1_TIMESTEP …
#define LP8788_BUCK_PWM …

/* mask/shift bits */
#define LP8788_EN_BUCK1_M …
#define LP8788_EN_BUCK2_M …
#define LP8788_EN_BUCK3_M …
#define LP8788_EN_BUCK4_M …
#define LP8788_BUCK1_DVS_SEL_M …
#define LP8788_BUCK1_DVS_M …
#define LP8788_BUCK1_DVS_S …
#define LP8788_BUCK2_DVS_SEL_M …
#define LP8788_BUCK2_DVS_M …
#define LP8788_BUCK2_DVS_S …
#define LP8788_BUCK1_DVS_I2C …
#define LP8788_BUCK2_DVS_I2C …
#define LP8788_BUCK1_DVS_PIN …
#define LP8788_BUCK2_DVS_PIN …
#define LP8788_VOUT_M …
#define LP8788_STARTUP_TIME_M …
#define LP8788_STARTUP_TIME_S …
#define LP8788_FPWM_BUCK1_M …
#define LP8788_FPWM_BUCK1_S …
#define LP8788_FPWM_BUCK2_M …
#define LP8788_FPWM_BUCK2_S …
#define LP8788_FPWM_BUCK3_M …
#define LP8788_FPWM_BUCK3_S …
#define LP8788_FPWM_BUCK4_M …
#define LP8788_FPWM_BUCK4_S …

#define INVALID_ADDR …
#define LP8788_FORCE_PWM …
#define LP8788_AUTO_PWM …
#define PIN_LOW …
#define PIN_HIGH …
#define ENABLE_TIME_USEC …

#define BUCK_FPWM_MASK(x) …
#define BUCK_FPWM_SHIFT(x) …

enum lp8788_dvs_state { … };

enum lp8788_dvs_mode { … };

enum lp8788_buck_id { … };

struct lp8788_buck { … };

/* BUCK 1 ~ 4 voltage ranges */
static const struct linear_range buck_volt_ranges[] = …;

static void lp8788_buck1_set_dvs(struct lp8788_buck *buck)
{ … }

static void lp8788_buck2_set_dvs(struct lp8788_buck *buck)
{ … }

static void lp8788_set_dvs(struct lp8788_buck *buck, enum lp8788_buck_id id)
{ … }

static enum lp8788_dvs_mode
lp8788_get_buck_dvs_ctrl_mode(struct lp8788_buck *buck, enum lp8788_buck_id id)
{ … }

static bool lp8788_is_valid_buck_addr(u8 addr)
{ … }

static u8 lp8788_select_buck_vout_addr(struct lp8788_buck *buck,
					enum lp8788_buck_id id)
{ … }

static int lp8788_buck12_set_voltage_sel(struct regulator_dev *rdev,
					unsigned selector)
{ … }

static int lp8788_buck12_get_voltage_sel(struct regulator_dev *rdev)
{ … }

static int lp8788_buck_enable_time(struct regulator_dev *rdev)
{ … }

static int lp8788_buck_set_mode(struct regulator_dev *rdev, unsigned int mode)
{ … }

static unsigned int lp8788_buck_get_mode(struct regulator_dev *rdev)
{ … }

static const struct regulator_ops lp8788_buck12_ops = …;

static const struct regulator_ops lp8788_buck34_ops = …;

static const struct regulator_desc lp8788_buck_desc[] = …;

static int lp8788_dvs_gpio_request(struct platform_device *pdev,
				struct lp8788_buck *buck,
				enum lp8788_buck_id id)
{ … }

static int lp8788_init_dvs(struct platform_device *pdev,
			struct lp8788_buck *buck, enum lp8788_buck_id id)
{ … }

static int lp8788_buck_probe(struct platform_device *pdev)
{ … }

static struct platform_driver lp8788_buck_driver = …;

static int __init lp8788_buck_init(void)
{ … }
subsys_initcall(lp8788_buck_init);

static void __exit lp8788_buck_exit(void)
{ … }
module_exit(lp8788_buck_exit);

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;
MODULE_ALIAS(…) …;
linux/drivers/regulator/lp8788-buck.c
