diff options
| -rw-r--r-- | drivers/mfd/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/mfd/Makefile | 1 | ||||
| -rw-r--r-- | drivers/mfd/rt5033.c | 142 | ||||
| -rw-r--r-- | include/linux/mfd/rt5033-private.h | 260 | ||||
| -rw-r--r-- | include/linux/mfd/rt5033.h | 62 |
5 files changed, 477 insertions, 0 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 2e6b731..9cd2af6 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -623,6 +623,18 @@ config MFD_RTSX_PCI types of memory cards, such as Memory Stick, Memory Stick Pro, Secure Digital and MultiMediaCard. +config MFD_RT5033 + tristate "Richtek RT5033 Power Management IC" + depends on I2C=y + select MFD_CORE + select REGMAP_I2C + help + This driver provides for the Richtek RT5033 Power Management IC, + which includes the I2C driver and the Core APIs. This driver provides + common support for accessing the device. The device supports multiple + sub-devices like charger, fuel gauge, flash LED, current source, + LDO and Buck. + config MFD_RTSX_USB tristate "Realtek USB card reader" depends on USB diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 53467e2..4059c24 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -176,6 +176,7 @@ obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o obj-$(CONFIG_MFD_DLN2) += dln2.o +obj-$(CONFIG_MFD_RT5033) += rt5033.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/rt5033.c b/drivers/mfd/rt5033.c new file mode 100644 index 0000000..db395a6 --- /dev/null +++ b/drivers/mfd/rt5033.c @@ -0,0 +1,142 @@ +/* + * MFD core driver for the Richtek RT5033. + * + * RT5033 comprises multiple sub-devices switcing charger, fuel gauge, + * flash LED, current source, LDO and BUCK regulators. + * + * Copyright (C) 2014 Samsung Electronics, Co., Ltd. + * 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. + */ + +#include <linux/err.h> +#include <linux/module.h> +#include <linux/interrupt.h> +#include <linux/of_device.h> +#include <linux/mfd/core.h> +#include <linux/mfd/rt5033.h> +#include <linux/mfd/rt5033-private.h> + +static const struct regmap_irq rt5033_irqs[] = { + { .mask = RT5033_PMIC_IRQ_BUCKOCP, }, + { .mask = RT5033_PMIC_IRQ_BUCKLV, }, + { .mask = RT5033_PMIC_IRQ_SAFELDOLV, }, + { .mask = RT5033_PMIC_IRQ_LDOLV, }, + { .mask = RT5033_PMIC_IRQ_OT, }, + { .mask = RT5033_PMIC_IRQ_VDDA_UV, }, +}; + +static const struct regmap_irq_chip rt5033_irq_chip = { + .name = "rt5033", + .status_base = RT5033_REG_PMIC_IRQ_STAT, + .mask_base = RT5033_REG_PMIC_IRQ_CTRL, + .mask_invert = true, + .num_regs = 1, + .irqs = rt5033_irqs, + .num_irqs = ARRAY_SIZE(rt5033_irqs), +}; + +static const struct mfd_cell rt5033_devs[] = { + { .name = "rt5033-regulator", }, + { + .name = "rt5033-charger", + .of_compatible = "richtek,rt5033-charger", + }, { + .name = "rt5033-battery", + .of_compatible = "richtek,rt5033-battery", + }, +}; + +static const struct regmap_config rt5033_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = RT5033_REG_END, +}; + +static int rt5033_i2c_probe(struct i2c_client *i2c, + const struct i2c_device_id *id) +{ + struct rt5033_dev *rt5033; + unsigned int dev_id; + int ret; + + rt5033 = devm_kzalloc(&i2c->dev, sizeof(*rt5033), GFP_KERNEL); + if (!rt5033) + return -ENOMEM; + + i2c_set_clientdata(i2c, rt5033); + rt5033->dev = &i2c->dev; + rt5033->irq = i2c->irq; + rt5033->wakeup = true; + + rt5033->regmap = devm_regmap_init_i2c(i2c, &rt5033_regmap_config); + if (IS_ERR(rt5033->regmap)) { + dev_err(&i2c->dev, "Failed to allocate register map.\n"); + return PTR_ERR(rt5033->regmap); + } + + ret = regmap_read(rt5033->regmap, RT5033_REG_DEVICE_ID, &dev_id); + if (ret) { + dev_err(&i2c->dev, "Device not found\n"); + return -ENODEV; + } + dev_info(&i2c->dev, "Device found Device ID: %04x\n", dev_id); + + ret = regmap_add_irq_chip(rt5033->regmap, rt5033->irq, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + 0, &rt5033_irq_chip, &rt5033->irq_data); + if (ret) { + dev_err(&i2c->dev, "Failed to request IRQ %d: %d\n", + rt5033->irq, ret); + return ret; + } + + ret = mfd_add_devices(rt5033->dev, -1, rt5033_devs, + ARRAY_SIZE(rt5033_devs), NULL, 0, + regmap_irq_get_domain(rt5033->irq_data)); + if (ret < 0) { + dev_err(&i2c->dev, "Failed to add RT5033 child devices.\n"); + return ret; + } + + device_init_wakeup(rt5033->dev, rt5033->wakeup); + + return 0; +} + +static int rt5033_i2c_remove(struct i2c_client *i2c) +{ + mfd_remove_devices(&i2c->dev); + + return 0; +} + +static const struct i2c_device_id rt5033_i2c_id[] = { + { "rt5033", }, + { } +}; +MODULE_DEVICE_TABLE(i2c, rt5033_i2c_id); + +static const struct of_device_id rt5033_dt_match[] = { + { .compatible = "richtek,rt5033", }, + { } +}; + +static struct i2c_driver rt5033_driver = { + .driver = { + .name = "rt5033", + .of_match_table = of_match_ptr(rt5033_dt_match), + }, + .probe = rt5033_i2c_probe, + .remove = rt5033_i2c_remove, + .id_table = rt5033_i2c_id, +}; +module_i2c_driver(rt5033_driver); + +MODULE_ALIAS("i2c:rt5033"); +MODULE_DESCRIPTION("Richtek RT5033 multi-function core driver"); +MODULE_AUTHOR("Beomho Seo <beomho.seo@samsung.com>"); +MODULE_LICENSE("GPL"); diff --git a/include/linux/mfd/rt5033-private.h b/include/linux/mfd/rt5033-private.h new file mode 100644 index 0000000..1b63fc2 --- /dev/null +++ b/include/linux/mfd/rt5033-private.h @@ -0,0 +1,260 @@ +/* + * MFD core driver for Richtek RT5033 + * + * Copyright (C) 2014 Samsung Electronics, Co., Ltd. + * 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_PRIVATE_H__ +#define __RT5033_PRIVATE_H__ + +enum rt5033_reg { + RT5033_REG_CHG_STAT = 0x00, + RT5033_REG_CHG_CTRL1 = 0x01, + RT5033_REG_CHG_CTRL2 = 0x02, + RT5033_REG_DEVICE_ID = 0x03, + RT5033_REG_CHG_CTRL3 = 0x04, + RT5033_REG_CHG_CTRL4 = 0x05, + RT5033_REG_CHG_CTRL5 = 0x06, + RT5033_REG_RT_CTRL0 = 0x07, + RT5033_REG_CHG_RESET = 0x08, + /* Reserved 0x09~0x18 */ + RT5033_REG_RT_CTRL1 = 0x19, + /* Reserved 0x1A~0x20 */ + RT5033_REG_FLED_FUNCTION1 = 0x21, + RT5033_REG_FLED_FUNCTION2 = 0x22, + RT5033_REG_FLED_STROBE_CTRL1 = 0x23, + RT5033_REG_FLED_STROBE_CTRL2 = 0x24, + RT5033_REG_FLED_CTRL1 = 0x25, + RT5033_REG_FLED_CTRL2 = 0x26, + RT5033_REG_FLED_CTRL3 = 0x27, + RT5033_REG_FLED_CTRL4 = 0x28, + RT5033_REG_FLED_CTRL5 = 0x29, + /* Reserved 0x2A~0x40 */ + RT5033_REG_CTRL = 0x41, + RT5033_REG_BUCK_CTRL = 0x42, + RT5033_REG_LDO_CTRL = 0x43, + /* Reserved 0x44~0x46 */ + RT5033_REG_MANUAL_RESET_CTRL = 0x47, + /* Reserved 0x48~0x5F */ + RT5033_REG_CHG_IRQ1 = 0x60, + RT5033_REG_CHG_IRQ2 = 0x61, + RT5033_REG_CHG_IRQ3 = 0x62, + RT5033_REG_CHG_IRQ1_CTRL = 0x63, + RT5033_REG_CHG_IRQ2_CTRL = 0x64, + RT5033_REG_CHG_IRQ3_CTRL = 0x65, + RT5033_REG_LED_IRQ_STAT = 0x66, + RT5033_REG_LED_IRQ_CTRL = 0x67, + RT5033_REG_PMIC_IRQ_STAT = 0x68, + RT5033_REG_PMIC_IRQ_CTRL = 0x69, + RT5033_REG_SHDN_CTRL = 0x6A, + RT5033_REG_OFF_EVENT = 0x6B, + + RT5033_REG_END, +}; + +/* RT5033 Charger state register */ +#define RT5033_CHG_STAT_MASK 0x20 +#define RT5033_CHG_STAT_DISCHARGING 0x00 +#define RT5033_CHG_STAT_FULL 0x10 +#define RT5033_CHG_STAT_CHARGING 0x20 +#define RT5033_CHG_STAT_NOT_CHARGING 0x30 +#define RT5033_CHG_STAT_TYPE_MASK 0x60 +#define RT5033_CHG_STAT_TYPE_PRE 0x20 +#define RT5033_CHG_STAT_TYPE_FAST 0x60 + +/* RT5033 CHGCTRL1 register */ +#define RT5033_CHGCTRL1_IAICR_MASK 0xe0 +#define RT5033_CHGCTRL1_MODE_MASK 0x01 + +/* RT5033 CHGCTRL2 register */ +#define RT5033_CHGCTRL2_CV_MASK 0xfc + +/* RT5033 CHGCTRL3 register */ +#define RT5033_CHGCTRL3_CFO_EN_MASK 0x40 +#define RT5033_CHGCTRL3_TIMER_MASK 0x38 +#define RT5033_CHGCTRL3_TIMER_EN_MASK 0x01 + +/* RT5033 CHGCTRL4 register */ +#define RT5033_CHGCTRL4_EOC_MASK 0x07 +#define RT5033_CHGCTRL4_IPREC_MASK 0x18 + +/* RT5033 CHGCTRL5 register */ +#define RT5033_CHGCTRL5_VPREC_MASK 0x0f +#define RT5033_CHGCTRL5_ICHG_MASK 0xf0 +#define RT5033_CHGCTRL5_ICHG_SHIFT 0x04 +#define RT5033_CHG_MAX_CURRENT 0x0d + +/* RT5033 RT CTRL1 register */ +#define RT5033_RT_CTRL1_UUG_MASK 0x02 +#define RT5033_RT_HZ_MASK 0x01 + +/* RT5033 control register */ +#define RT5033_CTRL_FCCM_BUCK_MASK 0x00 +#define RT5033_CTRL_BUCKOMS_MASK 0x01 +#define RT5033_CTRL_LDOOMS_MASK 0x02 +#define RT5033_CTRL_SLDOOMS_MASK 0x03 +#define RT5033_CTRL_EN_BUCK_MASK 0x04 +#define RT5033_CTRL_EN_LDO_MASK 0x05 +#define RT5033_CTRL_EN_SAFE_LDO_MASK 0x06 +#define RT5033_CTRL_LDO_SLEEP_MASK 0x07 + +/* RT5033 BUCK control register */ +#define RT5033_BUCK_CTRL_MASK 0x1f + +/* RT5033 LDO control register */ +#define RT5033_LDO_CTRL_MASK 0x1f + +/* RT5033 charger property - model, manufacturer */ + +#define RT5033_CHARGER_MODEL "RT5033WSC Charger" +#define RT5033_MANUFACTURER "Richtek Technology Corporation" + +/* + * RT5033 charger fast-charge current lmits (as in CHGCTRL1 register), + * AICR mode limits the input current for example, + * the AIRC 100 mode limits the input current to 100 mA. + */ +#define RT5033_AICR_100_MODE 0x20 +#define RT5033_AICR_500_MODE 0x40 +#define RT5033_AICR_700_MODE 0x60 +#define RT5033_AICR_900_MODE 0x80 +#define RT5033_AICR_1500_MODE 0xc0 +#define RT5033_AICR_2000_MODE 0xe0 +#define RT5033_AICR_MODE_MASK 0xe0 + +/* RT5033 use internal timer need to set time */ +#define RT5033_FAST_CHARGE_TIMER4 0x00 +#define RT5033_FAST_CHARGE_TIMER6 0x01 +#define RT5033_FAST_CHARGE_TIMER8 0x02 +#define RT5033_FAST_CHARGE_TIMER9 0x03 +#define RT5033_FAST_CHARGE_TIMER12 0x04 +#define RT5033_FAST_CHARGE_TIMER14 0x05 +#define RT5033_FAST_CHARGE_TIMER16 0x06 + +#define RT5033_INT_TIMER_ENABLE 0x01 + +/* RT5033 charger termination enable mask */ +#define RT5033_TE_ENABLE_MASK 0x08 + +/* + * RT5033 charger opa mode. RT50300 have two opa mode charger mode + * and boost mode for OTG + */ + +#define RT5033_CHARGER_MODE 0x00 +#define RT5033_BOOST_MODE 0x01 + +/* RT5033 charger termination enable */ +#define RT5033_TE_ENABLE 0x08 + +/* RT5033 charger CFO enable */ +#define RT5033_CFO_ENABLE 0x40 + +/* RT5033 charger constant charge voltage (as in CHGCTRL2 register), uV */ +#define RT5033_CHARGER_CONST_VOLTAGE_LIMIT_MIN 3650000U +#define RT5033_CHARGER_CONST_VOLTAGE_STEP_NUM 25000U +#define RT5033_CHARGER_CONST_VOLTAGE_LIMIT_MAX 4400000U + +/* RT5033 charger pre-charge current limits (as in CHGCTRL4 register), uA */ +#define RT5033_CHARGER_PRE_CURRENT_LIMIT_MIN 350000U +#define RT5033_CHARGER_PRE_CURRENT_STEP_NUM 100000U +#define RT5033_CHARGER_PRE_CURRENT_LIMIT_MAX 650000U + +/* RT5033 charger fast-charge current (as in CHGCTRL5 register), uA */ +#define RT5033_CHARGER_FAST_CURRENT_MIN 700000U +#define RT5033_CHARGER_FAST_CURRENT_STEP_NUM 100000U +#define RT5033_CHARGER_FAST_CURRENT_MAX 2000000U + +/* + * RT5033 charger const-charge end of charger current ( + * as in CHGCTRL4 register), uA + */ +#define RT5033_CHARGER_EOC_MIN 150000U +#define RT5033_CHARGER_EOC_REF 300000U +#define RT5033_CHARGER_EOC_STEP_NUM1 50000U +#define RT5033_CHARGER_EOC_STEP_NUM2 100000U +#define RT5033_CHARGER_EOC_MAX 600000U + +/* + * RT5033 charger pre-charge threshold volt limits + * (as in CHGCTRL5 register), uV + */ + +#define RT5033_CHARGER_PRE_THRESHOLD_LIMIT_MIN 2300000U +#define RT5033_CHARGER_PRE_THRESHOLD_STEP_NUM 100000U +#define RT5033_CHARGER_PRE_THRESHOLD_LIMIT_MAX 3800000U + +/* + * RT5033 charger enable UUG, If UUG enable MOS auto control by H/W charger + * circuit. + */ +#define RT5033_CHARGER_UUG_ENABLE 0x02 + +/* RT5033 charger High impedance mode */ +#define RT5033_CHARGER_HZ_DISABLE 0x00 +#define RT5033_CHARGER_HZ_ENABLE 0x01 + +/* RT5033 regulator BUCK output voltage uV */ +#define RT5033_REGULATOR_BUCK_VOLTAGE_MIN 1000000U +#define RT5033_REGULATOR_BUCK_VOLTAGE_MAX 3000000U +#define RT5033_REGULATOR_BUCK_VOLTAGE_STEP 100000U +#define RT5033_REGULATOR_BUCK_VOLTAGE_STEP_NUM 32 + +/* RT5033 regulator LDO output voltage uV */ +#define RT5033_REGULATOR_LDO_VOLTAGE_MIN 1200000U +#define RT5033_REGULATOR_LDO_VOLTAGE_MAX 3000000U +#define RT5033_REGULATOR_LDO_VOLTAGE_STEP 100000U +#define RT5033_REGULATOR_LDO_VOLTAGE_STEP_NUM 32 + +/* RT5033 regulator SAFE LDO output voltage uV */ +#define RT5033_REGULATOR_SAFE_LDO_VOLTAGE 4900000U + +enum rt5033_fuel_reg { + RT5033_FUEL_REG_OCV_H = 0x00, + 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__ */ diff --git a/include/linux/mfd/rt5033.h b/include/linux/mfd/rt5033.h new file mode 100644 index 0000000..010cff4 --- /dev/null +++ b/include/linux/mfd/rt5033.h @@ -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__ */ |