power: move power supply drivers to power/supply

This moves all power supply drivers from drivers/power/
to drivers/power/supply/. The intention is a cleaner
source tree, since drivers/power/ also contains frameworks
unrelated to power supply, like adaptive voltage scaling.

Signed-off-by: Sebastian Reichel <sre@kernel.org>

1 files changed, 0 insertions, 764 deletions

diff --git a/drivers/power/lp8788-charger.c b/drivers/power/lp8788-charger.c
deleted file mode 100644
index 7321b727d484..000000000000
--- a/drivers/power/lp8788-charger.c
+++ /dev/null
@@ -1,764 +0,0 @@
-/*
- * TI LP8788 MFD - battery charger driver
- *
- * Copyright 2012 Texas Instruments
- *
- * Author: Milo(Woogyom) Kim <milo.kim@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#include <linux/err.h>
-#include <linux/iio/consumer.h>
-#include <linux/interrupt.h>
-#include <linux/irqdomain.h>
-#include <linux/mfd/lp8788.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/power_supply.h>
-#include <linux/slab.h>
-#include <linux/workqueue.h>
-
-/* register address */
-#define LP8788_CHG_STATUS		0x07
-#define LP8788_CHG_IDCIN		0x13
-#define LP8788_CHG_IBATT		0x14
-#define LP8788_CHG_VTERM		0x15
-#define LP8788_CHG_EOC			0x16
-
-/* mask/shift bits */
-#define LP8788_CHG_INPUT_STATE_M	0x03	/* Addr 07h */
-#define LP8788_CHG_STATE_M		0x3C
-#define LP8788_CHG_STATE_S		2
-#define LP8788_NO_BATT_M		BIT(6)
-#define LP8788_BAD_BATT_M		BIT(7)
-#define LP8788_CHG_IBATT_M		0x1F	/* Addr 14h */
-#define LP8788_CHG_VTERM_M		0x0F	/* Addr 15h */
-#define LP8788_CHG_EOC_LEVEL_M		0x30	/* Addr 16h */
-#define LP8788_CHG_EOC_LEVEL_S		4
-#define LP8788_CHG_EOC_TIME_M		0x0E
-#define LP8788_CHG_EOC_TIME_S		1
-#define LP8788_CHG_EOC_MODE_M		BIT(0)
-
-#define LP8788_CHARGER_NAME		"charger"
-#define LP8788_BATTERY_NAME		"main_batt"
-
-#define LP8788_CHG_START		0x11
-#define LP8788_CHG_END			0x1C
-
-#define LP8788_ISEL_MAX			23
-#define LP8788_ISEL_STEP		50
-#define LP8788_VTERM_MIN		4100
-#define LP8788_VTERM_STEP		25
-#define LP8788_MAX_BATT_CAPACITY	100
-#define LP8788_MAX_CHG_IRQS		11
-
-enum lp8788_charging_state {
-	LP8788_OFF,
-	LP8788_WARM_UP,
-	LP8788_LOW_INPUT = 0x3,
-	LP8788_PRECHARGE,
-	LP8788_CC,
-	LP8788_CV,
-	LP8788_MAINTENANCE,
-	LP8788_BATTERY_FAULT,
-	LP8788_SYSTEM_SUPPORT = 0xC,
-	LP8788_HIGH_CURRENT = 0xF,
-	LP8788_MAX_CHG_STATE,
-};
-
-enum lp8788_charger_adc_sel {
-	LP8788_VBATT,
-	LP8788_BATT_TEMP,
-	LP8788_NUM_CHG_ADC,
-};
-
-enum lp8788_charger_input_state {
-	LP8788_SYSTEM_SUPPLY = 1,
-	LP8788_FULL_FUNCTION,
-};
-
-/*
- * struct lp8788_chg_irq
- * @which        : lp8788 interrupt id
- * @virq         : Linux IRQ number from irq_domain
- */
-struct lp8788_chg_irq {
-	enum lp8788_int_id which;
-	int virq;
-};
-
-/*
- * struct lp8788_charger
- * @lp           : used for accessing the registers of mfd lp8788 device
- * @charger      : power supply driver for the battery charger
- * @battery      : power supply driver for the battery
- * @charger_work : work queue for charger input interrupts
- * @chan         : iio channels for getting adc values
- *                 eg) battery voltage, capacity and temperature
- * @irqs         : charger dedicated interrupts
- * @num_irqs     : total numbers of charger interrupts
- * @pdata        : charger platform specific data
- */
-struct lp8788_charger {
-	struct lp8788 *lp;
-	struct power_supply *charger;
-	struct power_supply *battery;
-	struct work_struct charger_work;
-	struct iio_channel *chan[LP8788_NUM_CHG_ADC];
-	struct lp8788_chg_irq irqs[LP8788_MAX_CHG_IRQS];
-	int num_irqs;
-	struct lp8788_charger_platform_data *pdata;
-};
-
-static char *battery_supplied_to[] = {
-	LP8788_BATTERY_NAME,
-};
-
-static enum power_supply_property lp8788_charger_prop[] = {
-	POWER_SUPPLY_PROP_ONLINE,
-	POWER_SUPPLY_PROP_CURRENT_MAX,
-};
-
-static enum power_supply_property lp8788_battery_prop[] = {
-	POWER_SUPPLY_PROP_STATUS,
-	POWER_SUPPLY_PROP_HEALTH,
-	POWER_SUPPLY_PROP_PRESENT,
-	POWER_SUPPLY_PROP_VOLTAGE_NOW,
-	POWER_SUPPLY_PROP_CAPACITY,
-	POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
-	POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX,
-	POWER_SUPPLY_PROP_TEMP,
-};
-
-static bool lp8788_is_charger_detected(struct lp8788_charger *pchg)
-{
-	u8 data;
-
-	lp8788_read_byte(pchg->lp, LP8788_CHG_STATUS, &data);
-	data &= LP8788_CHG_INPUT_STATE_M;
-
-	return data == LP8788_SYSTEM_SUPPLY || data == LP8788_FULL_FUNCTION;
-}
-
-static int lp8788_charger_get_property(struct power_supply *psy,
-					enum power_supply_property psp,
-					union power_supply_propval *val)
-{
-	struct lp8788_charger *pchg = dev_get_drvdata(psy->dev.parent);
-	u8 read;
-
-	switch (psp) {
-	case POWER_SUPPLY_PROP_ONLINE:
-		val->intval = lp8788_is_charger_detected(pchg);
-		break;
-	case POWER_SUPPLY_PROP_CURRENT_MAX:
-		lp8788_read_byte(pchg->lp, LP8788_CHG_IDCIN, &read);
-		val->intval = LP8788_ISEL_STEP *
-				(min_t(int, read, LP8788_ISEL_MAX) + 1);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int lp8788_get_battery_status(struct lp8788_charger *pchg,
-				union power_supply_propval *val)
-{
-	enum lp8788_charging_state state;
-	u8 data;
-	int ret;
-
-	ret = lp8788_read_byte(pchg->lp, LP8788_CHG_STATUS, &data);
-	if (ret)
-		return ret;
-
-	state = (data & LP8788_CHG_STATE_M) >> LP8788_CHG_STATE_S;
-	switch (state) {
-	case LP8788_OFF:
-		val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
-		break;
-	case LP8788_PRECHARGE:
-	case LP8788_CC:
-	case LP8788_CV:
-	case LP8788_HIGH_CURRENT:
-		val->intval = POWER_SUPPLY_STATUS_CHARGING;
-		break;
-	case LP8788_MAINTENANCE:
-		val->intval = POWER_SUPPLY_STATUS_FULL;
-		break;
-	default:
-		val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
-		break;
-	}
-
-	return 0;
-}
-
-static int lp8788_get_battery_health(struct lp8788_charger *pchg,
-				union power_supply_propval *val)
-{
-	u8 data;
-	int ret;
-
-	ret = lp8788_read_byte(pchg->lp, LP8788_CHG_STATUS, &data);
-	if (ret)
-		return ret;
-
-	if (data & LP8788_NO_BATT_M)
-		val->intval = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
-	else if (data & LP8788_BAD_BATT_M)
-		val->intval = POWER_SUPPLY_HEALTH_DEAD;
-	else
-		val->intval = POWER_SUPPLY_HEALTH_GOOD;
-
-	return 0;
-}
-
-static int lp8788_get_battery_present(struct lp8788_charger *pchg,
-				union power_supply_propval *val)
-{
-	u8 data;
-	int ret;
-
-	ret = lp8788_read_byte(pchg->lp, LP8788_CHG_STATUS, &data);
-	if (ret)
-		return ret;
-
-	val->intval = !(data & LP8788_NO_BATT_M);
-	return 0;
-}
-
-static int lp8788_get_vbatt_adc(struct lp8788_charger *pchg, int *result)
-{
-	struct iio_channel *channel = pchg->chan[LP8788_VBATT];
-
-	if (!channel)
-		return -EINVAL;
-
-	return iio_read_channel_processed(channel, result);
-}
-
-static int lp8788_get_battery_voltage(struct lp8788_charger *pchg,
-				union power_supply_propval *val)
-{
-	return lp8788_get_vbatt_adc(pchg, &val->intval);
-}
-
-static int lp8788_get_battery_capacity(struct lp8788_charger *pchg,
-				union power_supply_propval *val)
-{
-	struct lp8788 *lp = pchg->lp;
-	struct lp8788_charger_platform_data *pdata = pchg->pdata;
-	unsigned int max_vbatt;
-	int vbatt;
-	enum lp8788_charging_state state;
-	u8 data;
-	int ret;
-
-	if (!pdata)
-		return -EINVAL;
-
-	max_vbatt = pdata->max_vbatt_mv;
-	if (max_vbatt == 0)
-		return -EINVAL;
-
-	ret = lp8788_read_byte(lp, LP8788_CHG_STATUS, &data);
-	if (ret)
-		return ret;
-
-	state = (data & LP8788_CHG_STATE_M) >> LP8788_CHG_STATE_S;
-
-	if (state == LP8788_MAINTENANCE) {
-		val->intval = LP8788_MAX_BATT_CAPACITY;
-	} else {
-		ret = lp8788_get_vbatt_adc(pchg, &vbatt);
-		if (ret)
-			return ret;
-
-		val->intval = (vbatt * LP8788_MAX_BATT_CAPACITY) / max_vbatt;
-		val->intval = min(val->intval, LP8788_MAX_BATT_CAPACITY);
-	}
-
-	return 0;
-}
-
-static int lp8788_get_battery_temperature(struct lp8788_charger *pchg,
-				union power_supply_propval *val)
-{
-	struct iio_channel *channel = pchg->chan[LP8788_BATT_TEMP];
-	int result;
-	int ret;
-
-	if (!channel)
-		return -EINVAL;
-
-	ret = iio_read_channel_processed(channel, &result);
-	if (ret < 0)
-		return -EINVAL;
-
-	/* unit: 0.1 'C */
-	val->intval = result * 10;
-
-	return 0;
-}
-
-static int lp8788_get_battery_charging_current(struct lp8788_charger *pchg,
-				union power_supply_propval *val)
-{
-	u8 read;
-
-	lp8788_read_byte(pchg->lp, LP8788_CHG_IBATT, &read);
-	read &= LP8788_CHG_IBATT_M;
-	val->intval = LP8788_ISEL_STEP *
-			(min_t(int, read, LP8788_ISEL_MAX) + 1);
-
-	return 0;
-}
-
-static int lp8788_get_charging_termination_voltage(struct lp8788_charger *pchg,
-				union power_supply_propval *val)
-{
-	u8 read;
-
-	lp8788_read_byte(pchg->lp, LP8788_CHG_VTERM, &read);
-	read &= LP8788_CHG_VTERM_M;
-	val->intval = LP8788_VTERM_MIN + LP8788_VTERM_STEP * read;
-
-	return 0;
-}
-
-static int lp8788_battery_get_property(struct power_supply *psy,
-					enum power_supply_property psp,
-					union power_supply_propval *val)
-{
-	struct lp8788_charger *pchg = dev_get_drvdata(psy->dev.parent);
-
-	switch (psp) {
-	case POWER_SUPPLY_PROP_STATUS:
-		return lp8788_get_battery_status(pchg, val);
-	case POWER_SUPPLY_PROP_HEALTH:
-		return lp8788_get_battery_health(pchg, val);
-	case POWER_SUPPLY_PROP_PRESENT:
-		return lp8788_get_battery_present(pchg, val);
-	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
-		return lp8788_get_battery_voltage(pchg, val);
-	case POWER_SUPPLY_PROP_CAPACITY:
-		return lp8788_get_battery_capacity(pchg, val);
-	case POWER_SUPPLY_PROP_TEMP:
-		return lp8788_get_battery_temperature(pchg, val);
-	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT:
-		return lp8788_get_battery_charging_current(pchg, val);
-	case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX:
-		return lp8788_get_charging_termination_voltage(pchg, val);
-	default:
-		return -EINVAL;
-	}
-}
-
-static inline bool lp8788_is_valid_charger_register(u8 addr)
-{
-	return addr >= LP8788_CHG_START && addr <= LP8788_CHG_END;
-}
-
-static int lp8788_update_charger_params(struct platform_device *pdev,
-					struct lp8788_charger *pchg)
-{
-	struct lp8788 *lp = pchg->lp;
-	struct lp8788_charger_platform_data *pdata = pchg->pdata;
-	struct lp8788_chg_param *param;
-	int i;
-	int ret;
-
-	if (!pdata || !pdata->chg_params) {
-		dev_info(&pdev->dev, "skip updating charger parameters\n");
-		return 0;
-	}
-
-	/* settting charging parameters */
-	for (i = 0; i < pdata->num_chg_params; i++) {
-		param = pdata->chg_params + i;
-
-		if (!param)
-			continue;
-
-		if (lp8788_is_valid_charger_register(param->addr)) {
-			ret = lp8788_write_byte(lp, param->addr, param->val);
-			if (ret)
-				return ret;
-		}
-	}
-
-	return 0;
-}
-
-static const struct power_supply_desc lp8788_psy_charger_desc = {
-	.name		= LP8788_CHARGER_NAME,
-	.type		= POWER_SUPPLY_TYPE_MAINS,
-	.properties	= lp8788_charger_prop,
-	.num_properties	= ARRAY_SIZE(lp8788_charger_prop),
-	.get_property	= lp8788_charger_get_property,
-};
-
-static const struct power_supply_desc lp8788_psy_battery_desc = {
-	.name		= LP8788_BATTERY_NAME,
-	.type		= POWER_SUPPLY_TYPE_BATTERY,
-	.properties	= lp8788_battery_prop,
-	.num_properties	= ARRAY_SIZE(lp8788_battery_prop),
-	.get_property	= lp8788_battery_get_property,
-};
-
-static int lp8788_psy_register(struct platform_device *pdev,
-				struct lp8788_charger *pchg)
-{
-	struct power_supply_config charger_cfg = {};
-
-	charger_cfg.supplied_to = battery_supplied_to;
-	charger_cfg.num_supplicants = ARRAY_SIZE(battery_supplied_to);
-
-	pchg->charger = power_supply_register(&pdev->dev,
-					      &lp8788_psy_charger_desc,
-					      &charger_cfg);
-	if (IS_ERR(pchg->charger))
-		return -EPERM;
-
-	pchg->battery = power_supply_register(&pdev->dev,
-					      &lp8788_psy_battery_desc, NULL);
-	if (IS_ERR(pchg->battery)) {
-		power_supply_unregister(pchg->charger);
-		return -EPERM;
-	}
-
-	return 0;
-}
-
-static void lp8788_psy_unregister(struct lp8788_charger *pchg)
-{
-	power_supply_unregister(pchg->battery);
-	power_supply_unregister(pchg->charger);
-}
-
-static void lp8788_charger_event(struct work_struct *work)
-{
-	struct lp8788_charger *pchg =
-		container_of(work, struct lp8788_charger, charger_work);
-	struct lp8788_charger_platform_data *pdata = pchg->pdata;
-	enum lp8788_charger_event event = lp8788_is_charger_detected(pchg);
-
-	pdata->charger_event(pchg->lp, event);
-}
-
-static bool lp8788_find_irq_id(struct lp8788_charger *pchg, int virq, int *id)
-{
-	bool found = false;
-	int i;
-
-	for (i = 0; i < pchg->num_irqs; i++) {
-		if (pchg->irqs[i].virq == virq) {
-			*id = pchg->irqs[i].which;
-			found = true;
-			break;
-		}
-	}
-
-	return found;
-}
-
-static irqreturn_t lp8788_charger_irq_thread(int virq, void *ptr)
-{
-	struct lp8788_charger *pchg = ptr;
-	struct lp8788_charger_platform_data *pdata = pchg->pdata;
-	int id = -1;
-
-	if (!lp8788_find_irq_id(pchg, virq, &id))
-		return IRQ_NONE;
-
-	switch (id) {
-	case LP8788_INT_CHG_INPUT_STATE:
-	case LP8788_INT_CHG_STATE:
-	case LP8788_INT_EOC:
-	case LP8788_INT_BATT_LOW:
-	case LP8788_INT_NO_BATT:
-		power_supply_changed(pchg->charger);
-		power_supply_changed(pchg->battery);
-		break;
-	default:
-		break;
-	}
-
-	/* report charger dectection event if used */
-	if (!pdata)
-		goto irq_handled;
-
-	if (pdata->charger_event && id == LP8788_INT_CHG_INPUT_STATE)
-		schedule_work(&pchg->charger_work);
-
-irq_handled:
-	return IRQ_HANDLED;
-}
-
-static int lp8788_set_irqs(struct platform_device *pdev,
-			struct lp8788_charger *pchg, const char *name)
-{
-	struct resource *r;
-	struct irq_domain *irqdm = pchg->lp->irqdm;
-	int irq_start;
-	int irq_end;
-	int virq;
-	int nr_irq;
-	int i;
-	int ret;
-
-	/* no error even if no irq resource */
-	r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, name);
-	if (!r)
-		return 0;
-
-	irq_start = r->start;
-	irq_end = r->end;
-
-	for (i = irq_start; i <= irq_end; i++) {
-		nr_irq = pchg->num_irqs;
-
-		virq = irq_create_mapping(irqdm, i);
-		pchg->irqs[nr_irq].virq = virq;
-		pchg->irqs[nr_irq].which = i;
-		pchg->num_irqs++;
-
-		ret = request_threaded_irq(virq, NULL,
-					lp8788_charger_irq_thread,
-					0, name, pchg);
-		if (ret)
-			break;
-	}
-
-	if (i <= irq_end)
-		goto err_free_irq;
-
-	return 0;
-
-err_free_irq:
-	for (i = 0; i < pchg->num_irqs; i++)
-		free_irq(pchg->irqs[i].virq, pchg);
-	return ret;
-}
-
-static int lp8788_irq_register(struct platform_device *pdev,
-				struct lp8788_charger *pchg)
-{
-	const char *name[] = {
-		LP8788_CHG_IRQ, LP8788_PRSW_IRQ, LP8788_BATT_IRQ
-	};
-	int i;
-	int ret;
-
-	INIT_WORK(&pchg->charger_work, lp8788_charger_event);
-	pchg->num_irqs = 0;
-
-	for (i = 0; i < ARRAY_SIZE(name); i++) {
-		ret = lp8788_set_irqs(pdev, pchg, name[i]);
-		if (ret) {
-			dev_warn(&pdev->dev, "irq setup failed: %s\n", name[i]);
-			return ret;
-		}
-	}
-
-	if (pchg->num_irqs > LP8788_MAX_CHG_IRQS) {
-		dev_err(&pdev->dev, "invalid total number of irqs: %d\n",
-			pchg->num_irqs);
-		return -EINVAL;
-	}
-
-
-	return 0;
-}
-
-static void lp8788_irq_unregister(struct platform_device *pdev,
-				  struct lp8788_charger *pchg)
-{
-	int i;
-	int irq;
-
-	for (i = 0; i < pchg->num_irqs; i++) {
-		irq = pchg->irqs[i].virq;
-		if (!irq)
-			continue;
-
-		free_irq(irq, pchg);
-	}
-}
-
-static void lp8788_setup_adc_channel(struct device *dev,
-				struct lp8788_charger *pchg)
-{
-	struct lp8788_charger_platform_data *pdata = pchg->pdata;
-	struct iio_channel *chan;
-
-	if (!pdata)
-		return;
-
-	/* ADC channel for battery voltage */
-	chan = iio_channel_get(dev, pdata->adc_vbatt);
-	pchg->chan[LP8788_VBATT] = IS_ERR(chan) ? NULL : chan;
-
-	/* ADC channel for battery temperature */
-	chan = iio_channel_get(dev, pdata->adc_batt_temp);
-	pchg->chan[LP8788_BATT_TEMP] = IS_ERR(chan) ? NULL : chan;
-}
-
-static void lp8788_release_adc_channel(struct lp8788_charger *pchg)
-{
-	int i;
-
-	for (i = 0; i < LP8788_NUM_CHG_ADC; i++) {
-		if (!pchg->chan[i])
-			continue;
-
-		iio_channel_release(pchg->chan[i]);
-		pchg->chan[i] = NULL;
-	}
-}
-
-static ssize_t lp8788_show_charger_status(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	struct lp8788_charger *pchg = dev_get_drvdata(dev);
-	enum lp8788_charging_state state;
-	char *desc[LP8788_MAX_CHG_STATE] = {
-		[LP8788_OFF] = "CHARGER OFF",
-		[LP8788_WARM_UP] = "WARM UP",
-		[LP8788_LOW_INPUT] = "LOW INPUT STATE",
-		[LP8788_PRECHARGE] = "CHARGING - PRECHARGE",
-		[LP8788_CC] = "CHARGING - CC",
-		[LP8788_CV] = "CHARGING - CV",
-		[LP8788_MAINTENANCE] = "NO CHARGING - MAINTENANCE",
-		[LP8788_BATTERY_FAULT] = "BATTERY FAULT",
-		[LP8788_SYSTEM_SUPPORT] = "SYSTEM SUPPORT",
-		[LP8788_HIGH_CURRENT] = "HIGH CURRENT",
-	};
-	u8 data;
-
-	lp8788_read_byte(pchg->lp, LP8788_CHG_STATUS, &data);
-	state = (data & LP8788_CHG_STATE_M) >> LP8788_CHG_STATE_S;
-
-	return scnprintf(buf, PAGE_SIZE, "%s\n", desc[state]);
-}
-
-static ssize_t lp8788_show_eoc_time(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	struct lp8788_charger *pchg = dev_get_drvdata(dev);
-	char *stime[] = { "400ms", "5min", "10min", "15min",
-			"20min", "25min", "30min" "No timeout" };
-	u8 val;
-
-	lp8788_read_byte(pchg->lp, LP8788_CHG_EOC, &val);
-	val = (val & LP8788_CHG_EOC_TIME_M) >> LP8788_CHG_EOC_TIME_S;
-
-	return scnprintf(buf, PAGE_SIZE, "End Of Charge Time: %s\n",
-			stime[val]);
-}
-
-static ssize_t lp8788_show_eoc_level(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	struct lp8788_charger *pchg = dev_get_drvdata(dev);
-	char *abs_level[] = { "25mA", "49mA", "75mA", "98mA" };
-	char *relative_level[] = { "5%", "10%", "15%", "20%" };
-	char *level;
-	u8 val;
-	u8 mode;
-
-	lp8788_read_byte(pchg->lp, LP8788_CHG_EOC, &val);
-
-	mode = val & LP8788_CHG_EOC_MODE_M;
-	val = (val & LP8788_CHG_EOC_LEVEL_M) >> LP8788_CHG_EOC_LEVEL_S;
-	level = mode ? abs_level[val] : relative_level[val];
-
-	return scnprintf(buf, PAGE_SIZE, "End Of Charge Level: %s\n", level);
-}
-
-static DEVICE_ATTR(charger_status, S_IRUSR, lp8788_show_charger_status, NULL);
-static DEVICE_ATTR(eoc_time, S_IRUSR, lp8788_show_eoc_time, NULL);
-static DEVICE_ATTR(eoc_level, S_IRUSR, lp8788_show_eoc_level, NULL);
-
-static struct attribute *lp8788_charger_attr[] = {
-	&dev_attr_charger_status.attr,
-	&dev_attr_eoc_time.attr,
-	&dev_attr_eoc_level.attr,
-	NULL,
-};
-
-static const struct attribute_group lp8788_attr_group = {
-	.attrs = lp8788_charger_attr,
-};
-
-static int lp8788_charger_probe(struct platform_device *pdev)
-{
-	struct lp8788 *lp = dev_get_drvdata(pdev->dev.parent);
-	struct lp8788_charger *pchg;
-	struct device *dev = &pdev->dev;
-	int ret;
-
-	pchg = devm_kzalloc(dev, sizeof(struct lp8788_charger), GFP_KERNEL);
-	if (!pchg)
-		return -ENOMEM;
-
-	pchg->lp = lp;
-	pchg->pdata = lp->pdata ? lp->pdata->chg_pdata : NULL;
-	platform_set_drvdata(pdev, pchg);
-
-	ret = lp8788_update_charger_params(pdev, pchg);
-	if (ret)
-		return ret;
-
-	lp8788_setup_adc_channel(&pdev->dev, pchg);
-
-	ret = lp8788_psy_register(pdev, pchg);
-	if (ret)
-		return ret;
-
-	ret = sysfs_create_group(&pdev->dev.kobj, &lp8788_attr_group);
-	if (ret) {
-		lp8788_psy_unregister(pchg);
-		return ret;
-	}
-
-	ret = lp8788_irq_register(pdev, pchg);
-	if (ret)
-		dev_warn(dev, "failed to register charger irq: %d\n", ret);
-
-	return 0;
-}
-
-static int lp8788_charger_remove(struct platform_device *pdev)
-{
-	struct lp8788_charger *pchg = platform_get_drvdata(pdev);
-
-	flush_work(&pchg->charger_work);
-	lp8788_irq_unregister(pdev, pchg);
-	sysfs_remove_group(&pdev->dev.kobj, &lp8788_attr_group);
-	lp8788_psy_unregister(pchg);
-	lp8788_release_adc_channel(pchg);
-
-	return 0;
-}
-
-static struct platform_driver lp8788_charger_driver = {
-	.probe = lp8788_charger_probe,
-	.remove = lp8788_charger_remove,
-	.driver = {
-		.name = LP8788_DEV_CHARGER,
-	},
-};
-module_platform_driver(lp8788_charger_driver);
-
-MODULE_DESCRIPTION("TI LP8788 Charger Driver");
-MODULE_AUTHOR("Milo Kim");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:lp8788-charger");