linux/drivers/power/supply/wm831x_backup.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Backup battery 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/mfd/wm831x/core.h>
#include <linux/mfd/wm831x/auxadc.h>
#include <linux/mfd/wm831x/pmu.h>
#include <linux/mfd/wm831x/pdata.h>

struct wm831x_backup { … };

static int wm831x_backup_read_voltage(struct wm831x *wm831x,
				     enum wm831x_auxadc src,
				     union power_supply_propval *val)
{ … }

/*********************************************************************
 *		Backup supply properties
 *********************************************************************/

static void wm831x_config_backup(struct wm831x *wm831x)
{ … }

static int wm831x_backup_get_prop(struct power_supply *psy,
				  enum power_supply_property psp,
				  union power_supply_propval *val)
{ … }

static enum power_supply_property wm831x_backup_props[] = …;

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

static int wm831x_backup_probe(struct platform_device *pdev)
{ … }

static struct platform_driver wm831x_backup_driver = …;

module_platform_driver(…) …;

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