From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751592AbaKGCwa (ORCPT ); Thu, 6 Nov 2014 21:52:30 -0500 Received: from mailout1.samsung.com ([203.254.224.24]:37408 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751069AbaKGCwS (ORCPT ); Thu, 6 Nov 2014 21:52:18 -0500 X-AuditID: cbfee68d-f79296d000004278-ee-545c33d9c929 From: Beomho Seo To: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org Cc: sameo@linux.intel.com, lee.jones@linaro.org, lgirdwood@gmail.com, broonie@kernel.org, sre@kernel.org, dbaryshkov@gmail.com, dwmw2@infradead.org, robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, kyungmin.park@samsung.com, cw00.choi@samsung.com, jonghwa3.lee@samsung.com, geunsik.lim@samsung.com, inki.dae@samsung.com, sw0312.kim@samsung.com, Beomho Seo Subject: [PATCH 4/5] power: rt5033_charger: Add RT5033 charger device driver Date: Fri, 07 Nov 2014 11:52:06 +0900 Message-id: <1415328727-16245-5-git-send-email-beomho.seo@samsung.com> X-Mailer: git-send-email 1.7.9.5 In-reply-to: <1415328727-16245-1-git-send-email-beomho.seo@samsung.com> References: <1415328727-16245-1-git-send-email-beomho.seo@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrFIsWRmVeSWpSXmKPExsWyRsSkQPeWcUyIQetMNovTn7axW0x9+ITN 4vqX56wWk568Z7aYf+Qcq8XElZOZLfrfLGS1+DOhlc3i3KuVjBaT7k9gseg8+4TZ4mzTG3aL +1+PMlp8u9LBZHF51xw2i8+9Rxgtll6/yGQxYfpaFovWvUfYLU53s1qc3l1iMWPySzYHMY81 89Ywelzu62Xy2DnrLrvHyuVf2Dw2r9Dy2LSqk83jzrU9bB7zTgZ69G1ZxejxeZNcAFcUl01K ak5mWWqRvl0CV8aO1pOMBbuqK9b1XmVtYGxK72Lk5JAQMJH4MekjO4QtJnHh3no2EFtIYCmj xOa5MjA1N07tZ+xi5AKKT2eUWLLyCQuE08YkcXTeO7AONgFNifdTrrCA2CICERJnl80CK2IW OMUssf70H7CEsICPxIdF95hBbBYBVYnP/xuAVnNw8Aq4SSy5kQNiSggoSMyZZANSwSngLvH8 8TZmiIPcJPauPQg2UkJgJYfEjKcr2CHGCEh8m3yIBaJXVmLTAWaIoyUlDq64wTKBUXgBI8Mq RtHUguSC4qT0IkO94sTc4tK8dL3k/NxNjMAoPf3vWe8OxtsHrA8xCnAwKvHw3uCNCRFiTSwr rsw9xGgKtGEis5Rocj4wFeSVxBsamxlZmJqYGhuZW5opifMqSv0MFhJITyxJzU5NLUgtii8q zUktPsTIxMEp1cB4oUzoWPI1G4mLsw8ys7Fon1c4tc82ZWGPzb7juz0ebI798qyU0WXzEc74 +h2LTukFn3oSFZjweal+gY/eQjmnf5dVdjaEP5R5d5v7t9jzirke2g5eT95OmW4Te+5bnegk Fge1044JMUsXPTiw8d1Xbo679ofn8zfK7ytufjyh4P9NMTWWay9OKbEUZyQaajEXFScCAJjx HHLNAgAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmplleLIzCtJLcpLzFFi42I5/e+xoO5N45gQgxmnzSxOf9rGbjH14RM2 i+tfnrNaTHryntli/pFzrBYTV05mtuh/s5DV4s+EVjaLc69WMlpMuj+BxaLz7BNmi7NNb9gt 7n89ymjx7UoHk8XlXXPYLD73HmG0WHr9IpPFhOlrWSxa9x5htzjdzWpxeneJxYzJL9kcxDzW zFvD6HG5r5fJY+esu+weK5d/YfPYvELLY9OqTjaPO9f2sHnMOxno0bdlFaPH501yAVxRDYw2 GamJKalFCql5yfkpmXnptkrewfHO8aZmBoa6hpYW5koKeYm5qbZKLj4Bum6ZOUB/KimUJeaU AoUCEouLlfTtME0IDXHTtYBpjND1DQmC6zEyQAMJaxgzdrSeZCzYVV2xrvcqawNjU3oXIyeH hICJxI1T+xkhbDGJC/fWs3UxcnEICUxnlFiy8gkLhNPGJHF03js2kCo2AU2J91OusIDYIgIR EmeXzQIrYhY4xSyx/vQfsISwgI/Eh0X3mEFsFgFVic//G9i7GDk4eAXcJJbcyAExJQQUJOZM sgGp4BRwl3j+eBtYtRBQxd61B1kmMPIuYGRYxSiaWpBcUJyUnmukV5yYW1yal66XnJ+7iRGc BJ5J72Bc1WBxiFGAg1GJh/cGb0yIEGtiWXFl7iFGCQ5mJRFeG3agEG9KYmVValF+fFFpTmrx IUZToJsmMkuJJucDE1ReSbyhsYmZkaWRuaGFkbG5kjjvwVbrQCGB9MSS1OzU1ILUIpg+Jg5O qQbGHAvBrRWTYo8Y2q6eUVKUv/nGWdPd+xfHhlhWXZf5W5fCW9576LfgfueACv3wvU41tRen aor5Hs5QuDxf7VBKx+zWHxl7G5WrBPmt2H3zW1cqzTj24tHn0K5T2v97vmouXbds1goDT5ZV DhyyMo9XMzjY1XIWXn6ouYnF8OuUCzq2xhEfhZKUWIozEg21mIuKEwEoEt+OGAMAAA== DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch add device driver of Richtek RT5033 PMIC. The driver support switching charger. rt5033 charger provide three charging mode. Three charging mode are pre charge mode, fast cahrge mode and constant voltage mode. They are have vary charge rate, charge parameters. The charge parameters can be controlled by i2c interface. Cc: Sebastian Reichel Cc: Dmitry Eremin-Solenikov Cc: David Woodhouse Signed-off-by: Beomho Seo Acked-by: Chanwoo Choi --- drivers/power/Kconfig | 8 + drivers/power/Makefile | 1 + drivers/power/rt5033_charger.c | 485 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 494 insertions(+) create mode 100644 drivers/power/rt5033_charger.c diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index da6981f..629b101 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -405,6 +405,14 @@ config BATTERY_RT5033 The fuelgauge calculates and determines the battery state of charge according to battery open circuit voltage. +config CHARGER_RT5033 + tristate "RT5033 battery charger support" + depends on MFD_RT5033 + help + This adds support for battery charger in Richtek RT5033 PMIC. + The device supports pre-charge mode, fast charge mode and + constant voltage mode. + source "drivers/power/reset/Kconfig" endif # POWER_SUPPLY diff --git a/drivers/power/Makefile b/drivers/power/Makefile index b83a0c7..bb8cce3 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -57,6 +57,7 @@ obj-$(CONFIG_CHARGER_BQ2415X) += bq2415x_charger.o obj-$(CONFIG_CHARGER_BQ24190) += bq24190_charger.o obj-$(CONFIG_CHARGER_BQ24735) += bq24735-charger.o obj-$(CONFIG_POWER_AVS) += avs/ +obj-$(CONFIG_POWER_RT5033) += rt5033_charger.o obj-$(CONFIG_CHARGER_SMB347) += smb347-charger.o obj-$(CONFIG_CHARGER_TPS65090) += tps65090-charger.o obj-$(CONFIG_POWER_RESET) += reset/ diff --git a/drivers/power/rt5033_charger.c b/drivers/power/rt5033_charger.c new file mode 100644 index 0000000..26a1312 --- /dev/null +++ b/drivers/power/rt5033_charger.c @@ -0,0 +1,485 @@ +/* + * Battery charger driver for RT5033 + * + * Copyright (C) 2014 Samsung Electronics, Co., Ltd. + * Beomho Seo + * + * 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 bythe Free Software Foundation. + */ + +#include +#include +#include +#include +#include + +static int rt5033_get_charger_state(struct rt5033_charger *charger) +{ + struct regmap *regmap = charger->rt5033->regmap; + int state = POWER_SUPPLY_STATUS_UNKNOWN; + u32 reg_data; + + if (!regmap) + return state; + + regmap_read(regmap, RT5033_REG_CHG_STAT, ®_data); + + switch (reg_data & RT5033_CHG_STAT_MASK) { + case RT5033_CHG_STAT_DISCHARGING: + state = POWER_SUPPLY_STATUS_DISCHARGING; + break; + case RT5033_CHG_STAT_CHARGING: + state = POWER_SUPPLY_STATUS_CHARGING; + break; + case RT5033_CHG_STAT_FULL: + state = POWER_SUPPLY_STATUS_FULL; + break; + case RT5033_CHG_STAT_NOT_CHARGING: + state = POWER_SUPPLY_STATUS_NOT_CHARGING; + break; + } + + return state; +} + +static int rt5033_get_charger_type(struct rt5033_charger *charger) +{ + struct regmap *regmap = charger->rt5033->regmap; + int state = POWER_SUPPLY_CHARGE_TYPE_UNKNOWN; + u32 reg_data; + + regmap_read(regmap, RT5033_REG_CHG_STAT, ®_data); + + switch (reg_data & RT5033_CHG_STAT_TYPE_MASK) { + case RT5033_CHG_STAT_TYPE_FAST: + state = POWER_SUPPLY_CHARGE_TYPE_FAST; + break; + case RT5033_CHG_STAT_TYPE_PRE: + state = POWER_SUPPLY_CHARGE_TYPE_TRICKLE; + break; + } + + return state; +} + +static int rt5033_get_charger_current(struct rt5033_charger *charger, + enum power_supply_property psp) +{ + struct regmap *regmap = charger->rt5033->regmap; + unsigned int state, reg_data, data; + + if (psp == POWER_SUPPLY_PROP_CURRENT_MAX) + return RT5033_CHG_MAX_CURRENT; + + regmap_read(regmap, RT5033_REG_CHG_CTRL5, ®_data); + + state = (reg_data >> RT5033_CHGCTRL5_ICHG_SHIFT) & 0xf; + + if (state > RT5033_CHG_MAX_CURRENT) + state = RT5033_CHG_MAX_CURRENT; + + data = state * 100 + 700; + + return data; +} + +static int rt5033_get_charge_voltage(struct rt5033_charger *charger, + enum power_supply_property psp) +{ + struct regmap *regmap = charger->rt5033->regmap; + unsigned int state, reg_data, data; + + if (psp == POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX) + return RT5033_CHARGER_CONST_VOLTAGE_LIMIT_MAX; + + regmap_read(regmap, RT5033_REG_CHG_CTRL2, ®_data); + + state = reg_data >> 2; + + data = RT5033_CHARGER_CONST_VOLTAGE_LIMIT_MIN + + RT5033_CHARGER_CONST_VOLTAGE_STEP_NUM * state; + + if (data > RT5033_CHARGER_CONST_VOLTAGE_LIMIT_MAX) + data = RT5033_CHARGER_CONST_VOLTAGE_LIMIT_MAX; + + return data; +} + +static inline int rt5033_init_const_charge(struct rt5033_charger *psy) +{ + struct rt5033_charger_data *data = psy->data; + unsigned val; + int ret; + u8 reg_data; + + /* Set Constant voltage mode */ + if (data->const_uvolt < RT5033_CHARGER_CONST_VOLTAGE_LIMIT_MIN || + data->const_uvolt > RT5033_CHARGER_CONST_VOLTAGE_LIMIT_MAX) + return -EINVAL; + + if (data->const_uvolt == RT5033_CHARGER_CONST_VOLTAGE_LIMIT_MIN) + reg_data = 0x0; + else if (data->const_uvolt == RT5033_CHARGER_CONST_VOLTAGE_LIMIT_MAX) + reg_data = 0xfc; + else { + val = data->const_uvolt; + val -= RT5033_CHARGER_CONST_VOLTAGE_LIMIT_MIN; + val /= RT5033_CHARGER_CONST_VOLTAGE_STEP_NUM; + reg_data = val; + } + + ret = regmap_update_bits(psy->rt5033->regmap, RT5033_REG_CHG_CTRL2, + RT5033_CHGCTRL2_CV_MASK, reg_data << 2); + if (ret) { + dev_err(psy->dev, "Failed regmap update\n"); + return -EINVAL; + } + + /* Set end of charge current */ + if (data->eoc_uamp < RT5033_CHARGER_EOC_MIN || + data->eoc_uamp > RT5033_CHARGER_EOC_MAX) + return -EINVAL; + + if (data->eoc_uamp == RT5033_CHARGER_EOC_MIN) + reg_data = 0x1; + else if (data->eoc_uamp == RT5033_CHARGER_EOC_MAX) + reg_data = 0x7; + else { + val = data->eoc_uamp; + if (val < RT5033_CHARGER_EOC_REF) { + val -= RT5033_CHARGER_EOC_MIN; + val /= RT5033_CHARGER_EOC_STEP_NUM1; + reg_data = 0x01 + val; + } else if (val > RT5033_CHARGER_EOC_REF) { + val -= RT5033_CHARGER_EOC_REF; + val /= RT5033_CHARGER_EOC_STEP_NUM2; + reg_data = 0x04 + val; + } else { + reg_data = 0x04; + } + } + + ret = regmap_update_bits(psy->rt5033->regmap, RT5033_REG_CHG_CTRL4, + RT5033_CHGCTRL4_EOC_MASK, reg_data); + if (ret) { + dev_err(psy->dev, "Failed regmap update\n"); + return -EINVAL; + } + + return 0; +} + +static inline int rt5033_init_fast_charge(struct rt5033_charger *psy) +{ + struct rt5033_charger_data *data = psy->data; + int ret; + u8 reg_data; + + /* Set limit input current */ + ret = regmap_update_bits(psy->rt5033->regmap, RT5033_REG_CHG_CTRL1, + RT5033_AICR_MODE_MASK, RT5033_AICR_2000_MODE); + if (ret) { + dev_err(psy->dev, "Failed regmap update\n"); + return -EINVAL; + } + + /* Set internal timer */ + ret = regmap_update_bits(psy->rt5033->regmap, RT5033_REG_CHG_CTRL3, + RT5033_CHGCTRL3_TIMER_MASK | RT5033_CHGCTRL3_TIMER_EN_MASK, + RT5033_FAST_CHARGE_TIMER4 | RT5033_INT_TIMER_ENABLE); + if (ret) { + dev_err(psy->dev, "Failed regmap update\n"); + return -EINVAL; + } + + /* Set fast-charge mode Carging current */ + if (data->fast_uamp < RT5033_CHARGER_FAST_CURRENT_MIN || + data->fast_uamp > RT5033_CHARGER_FAST_CURRENT_MAX) + return -EINVAL; + + if (data->fast_uamp == RT5033_CHARGER_FAST_CURRENT_MIN) + reg_data = 0x0; + else if (data->fast_uamp == RT5033_CHARGER_FAST_CURRENT_MAX) + reg_data = 0xd0; + else { + unsigned int val = data->fast_uamp; + + val -= RT5033_CHARGER_FAST_CURRENT_MIN; + val /= RT5033_CHARGER_FAST_CURRENT_STEP_NUM; + reg_data = 0x10 + val; + } + + ret = regmap_update_bits(psy->rt5033->regmap, RT5033_REG_CHG_CTRL5, + RT5033_CHGCTRL5_ICHG_MASK, reg_data); + if (ret) { + dev_err(psy->dev, "Failed regmap update\n"); + return -EINVAL; + } + + return 0; +} + +static inline int rt5033_init_pre_charge(struct rt5033_charger *psy) +{ + struct rt5033_charger_data *data = psy->data; + int ret; + u8 reg_data; + + /* Set pre-charge threshold voltage */ + if (data->pre_uvolt < RT5033_CHARGER_PRE_THRESHOLD_LIMIT_MIN || + data->pre_uvolt > RT5033_CHARGER_PRE_THRESHOLD_LIMIT_MAX) + return -EINVAL; + + if (data->pre_uvolt == RT5033_CHARGER_PRE_THRESHOLD_LIMIT_MIN) + reg_data = 0x00; + else if (data->pre_uvolt == RT5033_CHARGER_PRE_THRESHOLD_LIMIT_MAX) + reg_data = 0x0f; + else { + unsigned int val = data->pre_uvolt; + + val -= RT5033_CHARGER_PRE_THRESHOLD_LIMIT_MIN; + val /= RT5033_CHARGER_PRE_THRESHOLD_STEP_NUM; + reg_data = 0x00 + val; + } + + ret = regmap_update_bits(psy->rt5033->regmap, RT5033_REG_CHG_CTRL5, + RT5033_CHGCTRL5_VPREC_MASK, reg_data); + if (ret) { + dev_err(psy->dev, "Failed regmap update\n"); + return -EINVAL; + } + + /* Set pre-charge mode charging current */ + if (data->pre_uamp < RT5033_CHARGER_PRE_CURRENT_LIMIT_MIN || + data->pre_uamp > RT5033_CHARGER_PRE_CURRENT_LIMIT_MAX) + return -EINVAL; + + if (data->pre_uamp == RT5033_CHARGER_PRE_CURRENT_LIMIT_MIN) + reg_data = 0x00; + else if (data->pre_uamp == RT5033_CHARGER_PRE_CURRENT_LIMIT_MAX) + reg_data = 0x18; + else { + unsigned int val = data->pre_uamp; + + val -= RT5033_CHARGER_PRE_CURRENT_LIMIT_MIN; + val /= RT5033_CHARGER_PRE_CURRENT_STEP_NUM; + reg_data = 0x08 + val; + } + + ret = regmap_update_bits(psy->rt5033->regmap, RT5033_REG_CHG_CTRL4, + RT5033_CHGCTRL4_IPREC_MASK, reg_data); + if (ret) { + dev_err(psy->dev, "Failed regmap update\n"); + return -EINVAL; + } + + return 0; +} + +static int rt5033_charger_reg_init(struct rt5033_charger *psy) +{ + int ret = 0; + + ret = regmap_update_bits(psy->rt5033->regmap, RT5033_REG_CHG_CTRL1, + RT5033_CHGCTRL1_MODE_MASK, RT5033_CHARGER_MODE); + if (ret) { + dev_err(psy->dev, "Failed to update charger mode.\n"); + return -EINVAL; + } + + ret = regmap_update_bits(psy->rt5033->regmap, RT5033_REG_RT_CTRL1, + RT5033_RT_CTRL1_UUG_MASK, RT5033_CHARGER_UUG_ENABLE); + if (ret) { + dev_err(psy->dev, "Failed to update rt ctrl register.\n"); + return -EINVAL; + } + + ret = rt5033_init_pre_charge(psy); + if (ret) + return ret; + + ret = rt5033_init_fast_charge(psy); + if (ret) + return ret; + + ret = rt5033_init_const_charge(psy); + if (ret) + return ret; + + ret = regmap_update_bits(psy->rt5033->regmap, RT5033_REG_CHG_CTRL3, + RT5033_CHGCTRL3_CFO_EN_MASK, RT5033_CFO_ENABLE); + if (ret) { + dev_err(psy->dev, "Failed to set termaination enable.\n"); + return -EINVAL; + } + + ret = regmap_update_bits(psy->rt5033->regmap, RT5033_REG_CHG_CTRL1, + 0x01, 0x00); + if (ret) { + dev_err(psy->dev, "Failed to set termaination enable.\n"); + return -EINVAL; + } + + return 0; +} + +static enum power_supply_property rt5033_charger_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_CHARGE_TYPE, + POWER_SUPPLY_PROP_CURRENT_NOW, + POWER_SUPPLY_PROP_CURRENT_MAX, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE, + POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX, + POWER_SUPPLY_PROP_MODEL_NAME, + POWER_SUPPLY_PROP_MANUFACTURER, +}; + +static int rt5033_charger_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct rt5033_charger *charger = container_of(psy, + struct rt5033_charger, psy); + int ret = 0; + + switch (psp) { + case POWER_SUPPLY_PROP_STATUS: + val->intval = rt5033_get_charger_state(charger); + break; + case POWER_SUPPLY_PROP_CHARGE_TYPE: + val->intval = rt5033_get_charger_type(charger); + break; + case POWER_SUPPLY_PROP_CURRENT_NOW: + case POWER_SUPPLY_PROP_CURRENT_MAX: + val->intval = rt5033_get_charger_current(charger, psp); + break; + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE: + case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE_MAX: + val->intval = rt5033_get_charge_voltage(charger, psp); + break; + case POWER_SUPPLY_PROP_MODEL_NAME: + val->strval = RT5033_CHARGER_MODEL; + break; + case POWER_SUPPLY_PROP_MANUFACTURER: + val->strval = RT5033_MANUFACTURER; + break; + default: + return -EINVAL; + } + + return ret; +} + +static struct rt5033_charger_data *rt5033_charger_dt_init( + struct platform_device *pdev) +{ + struct rt5033_charger_data *data; + struct device_node *np = pdev->dev.of_node; + int ret; + + if (!np) { + dev_err(&pdev->dev, "No charger of_node\n"); + return ERR_PTR(-EINVAL); + } + + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); + if (!data) + return ERR_PTR(-ENOMEM); + + ret = of_property_read_u32(np, "richtek,pre-uamp", &data->pre_uamp); + if (ret) + return ERR_PTR(ret); + + ret = of_property_read_u32(np, "richtek,pre-threshold-uvolt", + &data->pre_uvolt); + if (ret) + return ERR_PTR(ret); + + /* + * Charging current is decided by external sensing register and + * regulated voltage. In this driver, external sensing regster value + * is 10 mili ohm + */ + ret = of_property_read_u32(np, "richtek,fast-uamp", &data->fast_uamp); + if (ret) + return ERR_PTR(ret); + + ret = of_property_read_u32(np, "richtek,const-uvolt", + &data->const_uvolt); + if (ret) + return ERR_PTR(ret); + + ret = of_property_read_u32(np, "richtek,eoc-uamp", &data->eoc_uamp); + if (ret) + return ERR_PTR(ret); + + return data; +} + +static int rt5033_charger_probe(struct platform_device *pdev) +{ + struct rt5033_charger *charger; + struct rt5033_dev *rt5033 = dev_get_drvdata(pdev->dev.parent); + int ret; + + charger = devm_kzalloc(&pdev->dev, sizeof(*charger), GFP_KERNEL); + if (!charger) + return -ENOMEM; + + platform_set_drvdata(pdev, charger); + charger->dev = &pdev->dev; + charger->rt5033 = rt5033; + + charger->data = rt5033_charger_dt_init(pdev); + if (IS_ERR_OR_NULL(charger->data)) + return PTR_ERR(charger->data); + + ret = rt5033_charger_reg_init(charger); + if (ret) + return ret; + + charger->psy.name = "rt5033-charger", + charger->psy.type = POWER_SUPPLY_TYPE_BATTERY, + charger->psy.properties = rt5033_charger_props, + charger->psy.num_properties = ARRAY_SIZE(rt5033_charger_props), + charger->psy.get_property = rt5033_charger_get_property, + + ret = power_supply_register(&pdev->dev, &charger->psy); + if (ret) { + dev_err(&pdev->dev, "Failed to register power supply\n"); + return ret; + } + + return 0; +} + +static int rt5033_charger_remove(struct platform_device *pdev) +{ + struct rt5033_charger *charger = platform_get_drvdata(pdev); + + power_supply_unregister(&charger->psy); + + return 0; +} + +static const struct platform_device_id rt5033_charger_id[] = { + { "rt5033-charger", }, + { } +}; +MODULE_DEVICE_TABLE(platform, rt5033_charger_id); + +static struct platform_driver rt5033_charger_driver = { + .driver = { + .name = "rt5033-charger", + }, + .probe = rt5033_charger_probe, + .remove = rt5033_charger_remove, + .id_table = rt5033_charger_id, +}; +module_platform_driver(rt5033_charger_driver); + +MODULE_DESCRIPTION("Richtek RT5033 charger driver"); +MODULE_AUTHOR("Beomho Seo "); +MODULE_LICENSE("GPL"); -- 1.7.9.5