linux/drivers/power/supply/wm831x_power.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * PMU driver for Wolfson Microelectronics wm831x PMICs
 *
 * Copyright 2009 Wolfson Microelectronics PLC.
 */

#include <linux/module.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/power_supply.h>
#include <linux/slab.h>
#include <linux/usb/phy.h>

#include <linux/mfd/wm831x/core.h>
#include <linux/mfd/wm831x/auxadc.h>
#include <linux/mfd/wm831x/pmu.h>
#include <linux/mfd/wm831x/pdata.h>

struct wm831x_power { … };

static int wm831x_power_check_online(struct wm831x *wm831x, int supply,
				     union power_supply_propval *val)
{ … }

static int wm831x_power_read_voltage(struct wm831x *wm831x,
				     enum wm831x_auxadc src,
				     union power_supply_propval *val)
{ … }

/*********************************************************************
 *		WALL Power
 *********************************************************************/
static int wm831x_wall_get_prop(struct power_supply *psy,
				enum power_supply_property psp,
				union power_supply_propval *val)
{ … }

static enum power_supply_property wm831x_wall_props[] = …;

/*********************************************************************
 *		USB Power
 *********************************************************************/
static int wm831x_usb_get_prop(struct power_supply *psy,
			       enum power_supply_property psp,
			       union power_supply_propval *val)
{ … }

static enum power_supply_property wm831x_usb_props[] = …;

/* In milliamps */
static const unsigned int wm831x_usb_limits[] = …;

static int wm831x_usb_limit_change(struct notifier_block *nb,
				   unsigned long limit, void *data)
{ … }

/*********************************************************************
 *		Battery properties
 *********************************************************************/

struct chg_map { … };

static struct chg_map trickle_ilims[] = …;

static struct chg_map vsels[] = …;

static struct chg_map fast_ilims[] = …;

static struct chg_map eoc_iterms[] = …;

static struct chg_map chg_times[] = …;

static void wm831x_battery_apply_config(struct wm831x *wm831x,
				       struct chg_map *map, int count, int val,
				       int *reg, const char *name,
				       const char *units)
{ … }

static void wm831x_config_battery(struct wm831x *wm831x)
{ … }

static int wm831x_bat_check_status(struct wm831x *wm831x, int *status)
{ … }

static int wm831x_bat_check_type(struct wm831x *wm831x, int *type)
{ … }

static int wm831x_bat_check_health(struct wm831x *wm831x, int *health)
{ … }

static int wm831x_bat_get_prop(struct power_supply *psy,
			       enum power_supply_property psp,
			       union power_supply_propval *val)
{ … }

static enum power_supply_property wm831x_bat_props[] = …;

static const char *wm831x_bat_irqs[] = …;

static irqreturn_t wm831x_bat_irq(int irq, void *data)
{ … }


/*********************************************************************
 *		Initialisation
 *********************************************************************/

static irqreturn_t wm831x_syslo_irq(int irq, void *data)
{ … }

static irqreturn_t wm831x_pwr_src_irq(int irq, void *data)
{ … }

static int wm831x_power_probe(struct platform_device *pdev)
{ … }

static void wm831x_power_remove(struct platform_device *pdev)
{ … }

static struct platform_driver wm831x_power_driver = …;

module_platform_driver(…) …;

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;
MODULE_ALIAS(…) …;