Re: [PATCH v8 1/4] mfd: rt5033: Add Richtek RT5033 driver core.

From: Lee Jones
Date: Tue Dec 09 2014 - 09:01:19 EST

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In reply to: Beomho Seo: "[PATCH v8 1/4] mfd: rt5033: Add Richtek RT5033 driver core."
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On Tue, 09 Dec 2014, Beomho Seo wrote:

> 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.
>
> Cc: Samuel Ortiz <sameo@xxxxxxxxxxxxxxx>
> Cc: Lee Jones <lee.jone@xxxxxxxxxx>
> Signed-off-by: Beomho Seo <beomho.seo@xxxxxxxxxxx>
> Acked-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
> ---
> Changes in v8
> - Add description of hardware.
> - Move structure.
>
> Changes in v7
> - Use small description.
> - Change some names for a variable.
> - Revise of_device_id struct style.
>
> Changes in v6
> - Fix white space issue in mfd cell struct.
>
> Changes in v5
> - Change possible built as a module.
> - Revise rt5033_dev mfd cell entry.
> - Fix incorrect typo.
> - Add module alias.
>
> Changes in v4
> - none.
>
> Changes in v3
> - Correct sentence errors.
> - Add author information the top of each drivers.
> - Remove unnecessary pre-initialise, struct member(rt5033->i2c) and blink.
> - Change some return check.
> - Use bool and of_match_ptr().
>
> Changes in v2
> - Remove volatile_reg callback. Because this driver not in use regmap cache.
> - Revmoe unnecessary subnode of_compatible.
> - Add define for set_high impedance mode of charger.
> ---
> drivers/mfd/Kconfig | 12 ++
> drivers/mfd/Makefile | 1 +
> drivers/mfd/rt5033.c | 142 ++++++++++++++++++++
> include/linux/mfd/rt5033-private.h | 260 ++++++++++++++++++++++++++++++++++++
> include/linux/mfd/rt5033.h | 62 +++++++++
> 5 files changed, 477 insertions(+)
> create mode 100644 drivers/mfd/rt5033.c
> create mode 100644 include/linux/mfd/rt5033-private.h
> create mode 100644 include/linux/mfd/rt5033.h

Much better.

For my own reference:

Acked-by: Lee Jones <lee.jones@xxxxxxxxxx>

So what's the plan with this set?

> 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@xxxxxxxxxxx>
> + *
> + * 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@xxxxxxxxxxx>");
> +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@xxxxxxxxxxx>
> + *
> + * 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@xxxxxxxxxxx>
> + *
> + * 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__ */

--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org â Open source software for ARM SoCs
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