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mfd: rt5033: Add Richtek RT5033 driver core.
This patch adds a new driver for Richtek RT5033 driver. RT5033 is a Multifunction device which includes battery charger, fuel gauge, flash LED current source, LDO and synchronous Buck converter. It is interfaced to host controller using I2C interface. Signed-off-by: Beomho Seo <beomho.seo@samsung.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Beomho Seo
Lee Jones
parent
52a98dcd37
commit
0b27125854
@ -623,6 +623,18 @@ config MFD_RTSX_PCI
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types of memory cards, such as Memory Stick, Memory Stick Pro,
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Secure Digital and MultiMediaCard.
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config MFD_RT5033
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tristate "Richtek RT5033 Power Management IC"
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depends on I2C=y
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select MFD_CORE
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select REGMAP_I2C
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help
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This driver provides for the Richtek RT5033 Power Management IC,
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which includes the I2C driver and the Core APIs. This driver provides
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common support for accessing the device. The device supports multiple
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sub-devices like charger, fuel gauge, flash LED, current source,
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LDO and Buck.
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config MFD_RTSX_USB
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tristate "Realtek USB card reader"
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depends on USB
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@ -176,6 +176,7 @@ obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o
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obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o
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obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
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obj-$(CONFIG_MFD_DLN2) += dln2.o
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obj-$(CONFIG_MFD_RT5033) += rt5033.o
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intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o
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obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o
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142
drivers/mfd/rt5033.c
Normal file
142
drivers/mfd/rt5033.c
Normal file
@ -0,0 +1,142 @@
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/*
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* MFD core driver for the Richtek RT5033.
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*
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* RT5033 comprises multiple sub-devices switcing charger, fuel gauge,
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* flash LED, current source, LDO and BUCK regulators.
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*
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* Copyright (C) 2014 Samsung Electronics, Co., Ltd.
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* Author: Beomho Seo <beomho.seo@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published bythe Free Software Foundation.
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*/
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#include <linux/err.h>
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#include <linux/module.h>
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#include <linux/interrupt.h>
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#include <linux/of_device.h>
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#include <linux/mfd/core.h>
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#include <linux/mfd/rt5033.h>
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#include <linux/mfd/rt5033-private.h>
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static const struct regmap_irq rt5033_irqs[] = {
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{ .mask = RT5033_PMIC_IRQ_BUCKOCP, },
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{ .mask = RT5033_PMIC_IRQ_BUCKLV, },
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{ .mask = RT5033_PMIC_IRQ_SAFELDOLV, },
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{ .mask = RT5033_PMIC_IRQ_LDOLV, },
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{ .mask = RT5033_PMIC_IRQ_OT, },
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{ .mask = RT5033_PMIC_IRQ_VDDA_UV, },
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};
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static const struct regmap_irq_chip rt5033_irq_chip = {
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.name = "rt5033",
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.status_base = RT5033_REG_PMIC_IRQ_STAT,
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.mask_base = RT5033_REG_PMIC_IRQ_CTRL,
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.mask_invert = true,
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.num_regs = 1,
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.irqs = rt5033_irqs,
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.num_irqs = ARRAY_SIZE(rt5033_irqs),
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};
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static const struct mfd_cell rt5033_devs[] = {
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{ .name = "rt5033-regulator", },
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{
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.name = "rt5033-charger",
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.of_compatible = "richtek,rt5033-charger",
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}, {
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.name = "rt5033-battery",
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.of_compatible = "richtek,rt5033-battery",
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},
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};
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static const struct regmap_config rt5033_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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.max_register = RT5033_REG_END,
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};
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static int rt5033_i2c_probe(struct i2c_client *i2c,
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const struct i2c_device_id *id)
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{
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struct rt5033_dev *rt5033;
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unsigned int dev_id;
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int ret;
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rt5033 = devm_kzalloc(&i2c->dev, sizeof(*rt5033), GFP_KERNEL);
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if (!rt5033)
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return -ENOMEM;
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i2c_set_clientdata(i2c, rt5033);
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rt5033->dev = &i2c->dev;
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rt5033->irq = i2c->irq;
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rt5033->wakeup = true;
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rt5033->regmap = devm_regmap_init_i2c(i2c, &rt5033_regmap_config);
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if (IS_ERR(rt5033->regmap)) {
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dev_err(&i2c->dev, "Failed to allocate register map.\n");
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return PTR_ERR(rt5033->regmap);
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}
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ret = regmap_read(rt5033->regmap, RT5033_REG_DEVICE_ID, &dev_id);
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if (ret) {
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dev_err(&i2c->dev, "Device not found\n");
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return -ENODEV;
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}
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dev_info(&i2c->dev, "Device found Device ID: %04x\n", dev_id);
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ret = regmap_add_irq_chip(rt5033->regmap, rt5033->irq,
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IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
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0, &rt5033_irq_chip, &rt5033->irq_data);
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if (ret) {
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dev_err(&i2c->dev, "Failed to request IRQ %d: %d\n",
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rt5033->irq, ret);
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return ret;
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}
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ret = mfd_add_devices(rt5033->dev, -1, rt5033_devs,
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ARRAY_SIZE(rt5033_devs), NULL, 0,
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regmap_irq_get_domain(rt5033->irq_data));
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if (ret < 0) {
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dev_err(&i2c->dev, "Failed to add RT5033 child devices.\n");
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return ret;
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}
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device_init_wakeup(rt5033->dev, rt5033->wakeup);
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return 0;
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}
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static int rt5033_i2c_remove(struct i2c_client *i2c)
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{
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mfd_remove_devices(&i2c->dev);
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return 0;
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}
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static const struct i2c_device_id rt5033_i2c_id[] = {
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{ "rt5033", },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, rt5033_i2c_id);
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static const struct of_device_id rt5033_dt_match[] = {
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{ .compatible = "richtek,rt5033", },
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{ }
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};
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static struct i2c_driver rt5033_driver = {
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.driver = {
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.name = "rt5033",
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.of_match_table = of_match_ptr(rt5033_dt_match),
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},
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.probe = rt5033_i2c_probe,
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.remove = rt5033_i2c_remove,
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.id_table = rt5033_i2c_id,
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};
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module_i2c_driver(rt5033_driver);
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MODULE_ALIAS("i2c:rt5033");
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MODULE_DESCRIPTION("Richtek RT5033 multi-function core driver");
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MODULE_AUTHOR("Beomho Seo <beomho.seo@samsung.com>");
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MODULE_LICENSE("GPL");
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260
include/linux/mfd/rt5033-private.h
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260
include/linux/mfd/rt5033-private.h
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@ -0,0 +1,260 @@
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/*
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* MFD core driver for Richtek RT5033
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*
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* Copyright (C) 2014 Samsung Electronics, Co., Ltd.
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* Author: Beomho Seo <beomho.seo@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published bythe Free Software Foundation.
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*/
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#ifndef __RT5033_PRIVATE_H__
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#define __RT5033_PRIVATE_H__
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enum rt5033_reg {
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RT5033_REG_CHG_STAT = 0x00,
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RT5033_REG_CHG_CTRL1 = 0x01,
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RT5033_REG_CHG_CTRL2 = 0x02,
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RT5033_REG_DEVICE_ID = 0x03,
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RT5033_REG_CHG_CTRL3 = 0x04,
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RT5033_REG_CHG_CTRL4 = 0x05,
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RT5033_REG_CHG_CTRL5 = 0x06,
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RT5033_REG_RT_CTRL0 = 0x07,
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RT5033_REG_CHG_RESET = 0x08,
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/* Reserved 0x09~0x18 */
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RT5033_REG_RT_CTRL1 = 0x19,
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/* Reserved 0x1A~0x20 */
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RT5033_REG_FLED_FUNCTION1 = 0x21,
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RT5033_REG_FLED_FUNCTION2 = 0x22,
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RT5033_REG_FLED_STROBE_CTRL1 = 0x23,
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RT5033_REG_FLED_STROBE_CTRL2 = 0x24,
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RT5033_REG_FLED_CTRL1 = 0x25,
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RT5033_REG_FLED_CTRL2 = 0x26,
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RT5033_REG_FLED_CTRL3 = 0x27,
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RT5033_REG_FLED_CTRL4 = 0x28,
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RT5033_REG_FLED_CTRL5 = 0x29,
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/* Reserved 0x2A~0x40 */
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RT5033_REG_CTRL = 0x41,
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RT5033_REG_BUCK_CTRL = 0x42,
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RT5033_REG_LDO_CTRL = 0x43,
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/* Reserved 0x44~0x46 */
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RT5033_REG_MANUAL_RESET_CTRL = 0x47,
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/* Reserved 0x48~0x5F */
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RT5033_REG_CHG_IRQ1 = 0x60,
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RT5033_REG_CHG_IRQ2 = 0x61,
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RT5033_REG_CHG_IRQ3 = 0x62,
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RT5033_REG_CHG_IRQ1_CTRL = 0x63,
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RT5033_REG_CHG_IRQ2_CTRL = 0x64,
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RT5033_REG_CHG_IRQ3_CTRL = 0x65,
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RT5033_REG_LED_IRQ_STAT = 0x66,
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RT5033_REG_LED_IRQ_CTRL = 0x67,
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RT5033_REG_PMIC_IRQ_STAT = 0x68,
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RT5033_REG_PMIC_IRQ_CTRL = 0x69,
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RT5033_REG_SHDN_CTRL = 0x6A,
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RT5033_REG_OFF_EVENT = 0x6B,
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RT5033_REG_END,
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};
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/* RT5033 Charger state register */
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#define RT5033_CHG_STAT_MASK 0x20
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#define RT5033_CHG_STAT_DISCHARGING 0x00
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#define RT5033_CHG_STAT_FULL 0x10
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#define RT5033_CHG_STAT_CHARGING 0x20
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#define RT5033_CHG_STAT_NOT_CHARGING 0x30
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#define RT5033_CHG_STAT_TYPE_MASK 0x60
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#define RT5033_CHG_STAT_TYPE_PRE 0x20
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#define RT5033_CHG_STAT_TYPE_FAST 0x60
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/* RT5033 CHGCTRL1 register */
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#define RT5033_CHGCTRL1_IAICR_MASK 0xe0
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#define RT5033_CHGCTRL1_MODE_MASK 0x01
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/* RT5033 CHGCTRL2 register */
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#define RT5033_CHGCTRL2_CV_MASK 0xfc
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/* RT5033 CHGCTRL3 register */
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#define RT5033_CHGCTRL3_CFO_EN_MASK 0x40
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#define RT5033_CHGCTRL3_TIMER_MASK 0x38
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#define RT5033_CHGCTRL3_TIMER_EN_MASK 0x01
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/* RT5033 CHGCTRL4 register */
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#define RT5033_CHGCTRL4_EOC_MASK 0x07
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#define RT5033_CHGCTRL4_IPREC_MASK 0x18
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/* RT5033 CHGCTRL5 register */
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#define RT5033_CHGCTRL5_VPREC_MASK 0x0f
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#define RT5033_CHGCTRL5_ICHG_MASK 0xf0
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#define RT5033_CHGCTRL5_ICHG_SHIFT 0x04
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#define RT5033_CHG_MAX_CURRENT 0x0d
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/* RT5033 RT CTRL1 register */
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#define RT5033_RT_CTRL1_UUG_MASK 0x02
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#define RT5033_RT_HZ_MASK 0x01
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/* RT5033 control register */
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#define RT5033_CTRL_FCCM_BUCK_MASK 0x00
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#define RT5033_CTRL_BUCKOMS_MASK 0x01
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#define RT5033_CTRL_LDOOMS_MASK 0x02
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#define RT5033_CTRL_SLDOOMS_MASK 0x03
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#define RT5033_CTRL_EN_BUCK_MASK 0x04
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#define RT5033_CTRL_EN_LDO_MASK 0x05
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#define RT5033_CTRL_EN_SAFE_LDO_MASK 0x06
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#define RT5033_CTRL_LDO_SLEEP_MASK 0x07
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/* RT5033 BUCK control register */
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#define RT5033_BUCK_CTRL_MASK 0x1f
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/* RT5033 LDO control register */
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#define RT5033_LDO_CTRL_MASK 0x1f
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/* RT5033 charger property - model, manufacturer */
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#define RT5033_CHARGER_MODEL "RT5033WSC Charger"
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#define RT5033_MANUFACTURER "Richtek Technology Corporation"
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/*
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* RT5033 charger fast-charge current lmits (as in CHGCTRL1 register),
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* AICR mode limits the input current for example,
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* the AIRC 100 mode limits the input current to 100 mA.
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*/
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#define RT5033_AICR_100_MODE 0x20
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#define RT5033_AICR_500_MODE 0x40
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#define RT5033_AICR_700_MODE 0x60
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#define RT5033_AICR_900_MODE 0x80
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#define RT5033_AICR_1500_MODE 0xc0
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#define RT5033_AICR_2000_MODE 0xe0
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#define RT5033_AICR_MODE_MASK 0xe0
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/* RT5033 use internal timer need to set time */
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#define RT5033_FAST_CHARGE_TIMER4 0x00
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#define RT5033_FAST_CHARGE_TIMER6 0x01
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#define RT5033_FAST_CHARGE_TIMER8 0x02
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#define RT5033_FAST_CHARGE_TIMER9 0x03
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#define RT5033_FAST_CHARGE_TIMER12 0x04
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#define RT5033_FAST_CHARGE_TIMER14 0x05
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#define RT5033_FAST_CHARGE_TIMER16 0x06
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#define RT5033_INT_TIMER_ENABLE 0x01
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/* RT5033 charger termination enable mask */
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#define RT5033_TE_ENABLE_MASK 0x08
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/*
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* RT5033 charger opa mode. RT50300 have two opa mode charger mode
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* and boost mode for OTG
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*/
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#define RT5033_CHARGER_MODE 0x00
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#define RT5033_BOOST_MODE 0x01
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/* RT5033 charger termination enable */
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#define RT5033_TE_ENABLE 0x08
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/* RT5033 charger CFO enable */
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#define RT5033_CFO_ENABLE 0x40
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/* RT5033 charger constant charge voltage (as in CHGCTRL2 register), uV */
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#define RT5033_CHARGER_CONST_VOLTAGE_LIMIT_MIN 3650000U
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#define RT5033_CHARGER_CONST_VOLTAGE_STEP_NUM 25000U
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#define RT5033_CHARGER_CONST_VOLTAGE_LIMIT_MAX 4400000U
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/* RT5033 charger pre-charge current limits (as in CHGCTRL4 register), uA */
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#define RT5033_CHARGER_PRE_CURRENT_LIMIT_MIN 350000U
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#define RT5033_CHARGER_PRE_CURRENT_STEP_NUM 100000U
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#define RT5033_CHARGER_PRE_CURRENT_LIMIT_MAX 650000U
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/* RT5033 charger fast-charge current (as in CHGCTRL5 register), uA */
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#define RT5033_CHARGER_FAST_CURRENT_MIN 700000U
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#define RT5033_CHARGER_FAST_CURRENT_STEP_NUM 100000U
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#define RT5033_CHARGER_FAST_CURRENT_MAX 2000000U
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/*
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* RT5033 charger const-charge end of charger current (
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* as in CHGCTRL4 register), uA
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*/
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#define RT5033_CHARGER_EOC_MIN 150000U
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#define RT5033_CHARGER_EOC_REF 300000U
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#define RT5033_CHARGER_EOC_STEP_NUM1 50000U
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#define RT5033_CHARGER_EOC_STEP_NUM2 100000U
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#define RT5033_CHARGER_EOC_MAX 600000U
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/*
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* RT5033 charger pre-charge threshold volt limits
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* (as in CHGCTRL5 register), uV
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*/
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#define RT5033_CHARGER_PRE_THRESHOLD_LIMIT_MIN 2300000U
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#define RT5033_CHARGER_PRE_THRESHOLD_STEP_NUM 100000U
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#define RT5033_CHARGER_PRE_THRESHOLD_LIMIT_MAX 3800000U
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/*
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* RT5033 charger enable UUG, If UUG enable MOS auto control by H/W charger
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* circuit.
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*/
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#define RT5033_CHARGER_UUG_ENABLE 0x02
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/* RT5033 charger High impedance mode */
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#define RT5033_CHARGER_HZ_DISABLE 0x00
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#define RT5033_CHARGER_HZ_ENABLE 0x01
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/* RT5033 regulator BUCK output voltage uV */
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#define RT5033_REGULATOR_BUCK_VOLTAGE_MIN 1000000U
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#define RT5033_REGULATOR_BUCK_VOLTAGE_MAX 3000000U
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#define RT5033_REGULATOR_BUCK_VOLTAGE_STEP 100000U
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#define RT5033_REGULATOR_BUCK_VOLTAGE_STEP_NUM 32
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/* RT5033 regulator LDO output voltage uV */
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#define RT5033_REGULATOR_LDO_VOLTAGE_MIN 1200000U
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#define RT5033_REGULATOR_LDO_VOLTAGE_MAX 3000000U
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#define RT5033_REGULATOR_LDO_VOLTAGE_STEP 100000U
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#define RT5033_REGULATOR_LDO_VOLTAGE_STEP_NUM 32
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/* RT5033 regulator SAFE LDO output voltage uV */
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#define RT5033_REGULATOR_SAFE_LDO_VOLTAGE 4900000U
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enum rt5033_fuel_reg {
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RT5033_FUEL_REG_OCV_H = 0x00,
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RT5033_FUEL_REG_OCV_L = 0x01,
|
||||
RT5033_FUEL_REG_VBAT_H = 0x02,
|
||||
RT5033_FUEL_REG_VBAT_L = 0x03,
|
||||
RT5033_FUEL_REG_SOC_H = 0x04,
|
||||
RT5033_FUEL_REG_SOC_L = 0x05,
|
||||
RT5033_FUEL_REG_CTRL_H = 0x06,
|
||||
RT5033_FUEL_REG_CTRL_L = 0x07,
|
||||
RT5033_FUEL_REG_CRATE = 0x08,
|
||||
RT5033_FUEL_REG_DEVICE_ID = 0x09,
|
||||
RT5033_FUEL_REG_AVG_VOLT_H = 0x0A,
|
||||
RT5033_FUEL_REG_AVG_VOLT_L = 0x0B,
|
||||
RT5033_FUEL_REG_CONFIG_H = 0x0C,
|
||||
RT5033_FUEL_REG_CONFIG_L = 0x0D,
|
||||
/* Reserved 0x0E~0x0F */
|
||||
RT5033_FUEL_REG_IRQ_CTRL = 0x10,
|
||||
RT5033_FUEL_REG_IRQ_FLAG = 0x11,
|
||||
RT5033_FUEL_VMIN = 0x12,
|
||||
RT5033_FUEL_SMIN = 0x13,
|
||||
/* Reserved 0x14~0x1F */
|
||||
RT5033_FUEL_VGCOMP1 = 0x20,
|
||||
RT5033_FUEL_VGCOMP2 = 0x21,
|
||||
RT5033_FUEL_VGCOMP3 = 0x22,
|
||||
RT5033_FUEL_VGCOMP4 = 0x23,
|
||||
/* Reserved 0x24~0xFD */
|
||||
RT5033_FUEL_MFA_H = 0xFE,
|
||||
RT5033_FUEL_MFA_L = 0xFF,
|
||||
|
||||
RT5033_FUEL_REG_END,
|
||||
};
|
||||
|
||||
/* RT5033 fuel gauge battery present property */
|
||||
#define RT5033_FUEL_BAT_PRESENT 0x02
|
||||
|
||||
/* RT5033 PMIC interrupts */
|
||||
#define RT5033_PMIC_IRQ_BUCKOCP 2
|
||||
#define RT5033_PMIC_IRQ_BUCKLV 3
|
||||
#define RT5033_PMIC_IRQ_SAFELDOLV 4
|
||||
#define RT5033_PMIC_IRQ_LDOLV 5
|
||||
#define RT5033_PMIC_IRQ_OT 6
|
||||
#define RT5033_PMIC_IRQ_VDDA_UV 7
|
||||
|
||||
#endif /* __RT5033_PRIVATE_H__ */
|
||||
62
include/linux/mfd/rt5033.h
Normal file
62
include/linux/mfd/rt5033.h
Normal file
@ -0,0 +1,62 @@
|
||||
/*
|
||||
* MFD core driver for the RT5033
|
||||
*
|
||||
* Copyright (C) 2014 Samsung Electronics
|
||||
* Author: Beomho Seo <beomho.seo@samsung.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 bythe Free Software Foundation.
|
||||
*/
|
||||
|
||||
#ifndef __RT5033_H__
|
||||
#define __RT5033_H__
|
||||
|
||||
#include <linux/regulator/consumer.h>
|
||||
#include <linux/i2c.h>
|
||||
#include <linux/regmap.h>
|
||||
#include <linux/power_supply.h>
|
||||
|
||||
/* RT5033 regulator IDs */
|
||||
enum rt5033_regulators {
|
||||
RT5033_BUCK = 0,
|
||||
RT5033_LDO,
|
||||
RT5033_SAFE_LDO,
|
||||
|
||||
RT5033_REGULATOR_NUM,
|
||||
};
|
||||
|
||||
struct rt5033_dev {
|
||||
struct device *dev;
|
||||
|
||||
struct regmap *regmap;
|
||||
struct regmap_irq_chip_data *irq_data;
|
||||
int irq;
|
||||
bool wakeup;
|
||||
};
|
||||
|
||||
struct rt5033_battery {
|
||||
struct i2c_client *client;
|
||||
struct rt5033_dev *rt5033;
|
||||
struct regmap *regmap;
|
||||
struct power_supply psy;
|
||||
};
|
||||
|
||||
/* RT5033 charger platform data */
|
||||
struct rt5033_charger_data {
|
||||
unsigned int pre_uamp;
|
||||
unsigned int pre_uvolt;
|
||||
unsigned int const_uvolt;
|
||||
unsigned int eoc_uamp;
|
||||
unsigned int fast_uamp;
|
||||
};
|
||||
|
||||
struct rt5033_charger {
|
||||
struct device *dev;
|
||||
struct rt5033_dev *rt5033;
|
||||
struct power_supply psy;
|
||||
|
||||
struct rt5033_charger_data *chg;
|
||||
};
|
||||
|
||||
#endif /* __RT5033_H__ */
|
||||
Loading…
Reference in New Issue
Block a user