* [PATCH v2 1/5] mfd: rt5033: Add Richtek RT5033 driver core.
2014-11-10 7:19 [PATCH v2 0/5] mfd: rt5033: Add Richtek RT5033 drivers Beomho Seo
@ 2014-11-10 7:19 ` Beomho Seo
[not found] ` <1415603987-32475-2-git-send-email-beomho.seo-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2014-11-10 7:19 ` [PATCH v2 2/5] regulator: rt5033: Add RT5033 Regulator device driver Beomho Seo
` (3 subsequent siblings)
4 siblings, 1 reply; 10+ messages in thread
From: Beomho Seo @ 2014-11-10 7:19 UTC (permalink / raw)
To: linux-kernel, linux-pm, devicetree
Cc: cw00.choi, geunsik.lim, inki.dae, sw0312.kim, Beomho Seo,
Samuel Ortiz, Lee Jones
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@linux.intel.com>
Cc: Lee Jones <lee.jone@linaro.org>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
---
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 | 11 ++
drivers/mfd/Makefile | 1 +
drivers/mfd/rt5033.c | 142 ++++++++++++++++++++
include/linux/mfd/rt5033-private.h | 260 ++++++++++++++++++++++++++++++++++++
include/linux/mfd/rt5033.h | 64 +++++++++
5 files changed, 478 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
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index cbdb109..6800068 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -607,6 +607,17 @@ config MFD_RTSX_PCI
types of memory cards, such as Memory Stick, Memory Stick Pro,
Secure Digital and MultiMediaCard.
+config MFD_RT5033
+ bool "Richtek RT5033 Power Management IC"
+ depends on I2C=y
+ select MFD_CORE
+ select REGMAP_I2C
+ help
+ This support for Richtek RT5033 Power Management IC. This 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 8e679d6..94e0f1c 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -175,6 +175,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o
obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o
obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o
obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o
+obj-$(CONFIG_MFD_RT5033) += rt5033.o
intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o
obj-$(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..8f5aee0
--- /dev/null
+++ b/drivers/mfd/rt5033.c
@@ -0,0 +1,142 @@
+/*
+ * MFD core driver for the Richtek RT5033.
+ *
+ * Copyright (C) 2014 Samsung Electronics, Co., Ltd.
+ * 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 of_device_id rt5033_dt_match[] = {
+ { .compatible = "richtek,rt5033", },
+ { }
+};
+
+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 data;
+ int ret = 0;
+
+ rt5033 = devm_kzalloc(&i2c->dev, sizeof(*rt5033), GFP_KERNEL);
+ if (!rt5033)
+ return -ENOMEM;
+
+ i2c_set_clientdata(i2c, rt5033);
+ rt5033->dev = &i2c->dev;
+ rt5033->i2c = i2c;
+ rt5033->irq = i2c->irq;
+ rt5033->wakeup = 1;
+
+ 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, &data);
+ if (ret < 0) {
+ dev_err(&i2c->dev, "Device not found\n");
+ return -ENODEV;
+ }
+ dev_info(&i2c->dev, "Device found Device ID: %04x\n", data);
+
+ ret = regmap_add_irq_chip(rt5033->regmap, rt5033->irq,
+ IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ 0, &rt5033_irq_chip, &rt5033->irq_data);
+ if (ret < 0) {
+ 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 mfd device.\n");
+ return ret;
+ }
+
+ device_init_wakeup(rt5033->dev, rt5033->wakeup);
+
+ return 0;
+}
+
+static int rt5033_i2c_remove(struct i2c_client *i2c)
+{
+ struct rt5033_dev *rt5033 = i2c_get_clientdata(i2c);
+
+ mfd_remove_devices(rt5033->dev);
+
+ return 0;
+}
+
+static const struct i2c_device_id rt5033_i2c_id[] = {
+ { "rt5033", },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, rt5033_i2c_id);
+
+static struct i2c_driver rt5033_driver = {
+ .driver = {
+ .name = "rt5033",
+ .of_match_table = rt5033_dt_match,
+ },
+ .probe = rt5033_i2c_probe,
+ .remove = rt5033_i2c_remove,
+ .id_table = rt5033_i2c_id,
+};
+module_i2c_driver(rt5033_driver);
+
+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..9eff0e5
--- /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.
+ * 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..5fb8ab1
--- /dev/null
+++ b/include/linux/mfd/rt5033.h
@@ -0,0 +1,64 @@
+/*
+ * MFD core driver for the RT5033
+ *
+ * Copyright (C) 2014 Samsung Electronics
+ * 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 i2c_client *i2c;
+
+ 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 *data;
+};
+
+
+#endif /* __RT5033_H__ */
--
1.7.9.5
^ permalink raw reply related [flat|nested] 10+ messages in thread* [PATCH v2 2/5] regulator: rt5033: Add RT5033 Regulator device driver
2014-11-10 7:19 [PATCH v2 0/5] mfd: rt5033: Add Richtek RT5033 drivers Beomho Seo
2014-11-10 7:19 ` [PATCH v2 1/5] mfd: rt5033: Add Richtek RT5033 driver core Beomho Seo
@ 2014-11-10 7:19 ` Beomho Seo
2014-11-10 19:04 ` Mark Brown
[not found] ` <1415603987-32475-1-git-send-email-beomho.seo-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
` (2 subsequent siblings)
4 siblings, 1 reply; 10+ messages in thread
From: Beomho Seo @ 2014-11-10 7:19 UTC (permalink / raw)
To: linux-kernel, linux-pm, devicetree
Cc: cw00.choi, geunsik.lim, inki.dae, sw0312.kim, Beomho Seo,
Liam Girdwood, Mark Brown
This patch add device driver of Richtek RT5033 PMIC.
The driver support multiple regulator like LDO and synchronous Buck.
The integrated synchronous buck converter is designed to provide 0.6 A
application with high efficiency. Two LDOs are integrated. One safe LDO is
for 60mA and the other one LDO is for 150 mA.
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
---
Changes in v2:
- Remove unnecessary device specific code.
---
drivers/regulator/Kconfig | 8 +++
drivers/regulator/Makefile | 1 +
drivers/regulator/rt5033-regulator.c | 123 ++++++++++++++++++++++++++++++++++
3 files changed, 132 insertions(+)
create mode 100644 drivers/regulator/rt5033-regulator.c
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 55d7b7b..8558e1b 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -521,6 +521,14 @@ config REGULATOR_RN5T618
help
Say y here to support the regulators found on Ricoh RN5T618 PMIC.
+config REGULATOR_RT5033
+ tristate "Richtek RT5033 Regulators"
+ depends on MFD_RT5033
+ help
+ This adds support for voltage and current regulators in Richtek
+ RT5033 PMIC. The device supports multiple regulators like
+ current source, LDO and Buck.
+
config REGULATOR_S2MPA01
tristate "Samsung S2MPA01 voltage regulator"
depends on MFD_SEC_CORE
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 1029ed3..1f28ebf 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -69,6 +69,7 @@ obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o
obj-$(CONFIG_REGULATOR_RC5T583) += rc5t583-regulator.o
obj-$(CONFIG_REGULATOR_RK808) += rk808-regulator.o
obj-$(CONFIG_REGULATOR_RN5T618) += rn5t618-regulator.o
+obj-$(CONFIG_REGULATOR_RT5033) += rt5033-regulator.o
obj-$(CONFIG_REGULATOR_S2MPA01) += s2mpa01.o
obj-$(CONFIG_REGULATOR_S2MPS11) += s2mps11.o
obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o
diff --git a/drivers/regulator/rt5033-regulator.c b/drivers/regulator/rt5033-regulator.c
new file mode 100644
index 0000000..782ba2d
--- /dev/null
+++ b/drivers/regulator/rt5033-regulator.c
@@ -0,0 +1,123 @@
+/*
+ * Regulator driver for the Richtek RT5033
+ *
+ * Copyright (C) 2014 Samsung Electronics, Co., Ltd.
+ * 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/module.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/mfd/rt5033.h>
+#include <linux/mfd/rt5033-private.h>
+#include <linux/regulator/of_regulator.h>
+
+static struct regulator_ops rt5033_safe_ldo_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+};
+
+static struct regulator_ops rt5033_buck_ops = {
+ .is_enabled = regulator_is_enabled_regmap,
+ .enable = regulator_enable_regmap,
+ .disable = regulator_disable_regmap,
+ .list_voltage = regulator_list_voltage_linear,
+ .map_voltage = regulator_map_voltage_linear,
+ .get_voltage_sel = regulator_get_voltage_sel_regmap,
+ .set_voltage_sel = regulator_set_voltage_sel_regmap,
+};
+
+static const struct regulator_desc rt5033_supported_regulators[] = {
+ [RT5033_BUCK] = {
+ .name = "BUCK",
+ .id = RT5033_BUCK,
+ .ops = &rt5033_buck_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .n_voltages = RT5033_REGULATOR_BUCK_VOLTAGE_STEP_NUM,
+ .min_uV = RT5033_REGULATOR_BUCK_VOLTAGE_MIN,
+ .uV_step = RT5033_REGULATOR_BUCK_VOLTAGE_STEP,
+ .enable_reg = RT5033_REG_CTRL,
+ .enable_mask = RT5033_CTRL_EN_BUCK_MASK,
+ .vsel_reg = RT5033_REG_BUCK_CTRL,
+ .vsel_mask = RT5033_BUCK_CTRL_MASK,
+ },
+ [RT5033_LDO] = {
+ .name = "LDO",
+ .id = RT5033_LDO,
+ .ops = &rt5033_buck_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .n_voltages = RT5033_REGULATOR_LDO_VOLTAGE_STEP_NUM,
+ .min_uV = RT5033_REGULATOR_LDO_VOLTAGE_MIN,
+ .uV_step = RT5033_REGULATOR_LDO_VOLTAGE_STEP,
+ .enable_reg = RT5033_REG_CTRL,
+ .enable_mask = RT5033_CTRL_EN_LDO_MASK,
+ .vsel_reg = RT5033_REG_LDO_CTRL,
+ .vsel_mask = RT5033_LDO_CTRL_MASK,
+ },
+ [RT5033_SAFE_LDO] = {
+ .name = "SAFE_LDO",
+ .id = RT5033_SAFE_LDO,
+ .ops = &rt5033_safe_ldo_ops,
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .n_voltages = 1,
+ .min_uV = RT5033_REGULATOR_SAFE_LDO_VOLTAGE,
+ .enable_reg = RT5033_REG_CTRL,
+ .enable_mask = RT5033_CTRL_EN_SAFE_LDO_MASK,
+ },
+};
+
+static int rt5033_regulator_probe(struct platform_device *pdev)
+{
+ struct rt5033_dev *rt5033 = dev_get_drvdata(pdev->dev.parent);
+ int ret, i;
+ struct regulator_config config = {};
+
+ config.dev = &pdev->dev;
+ config.driver_data = rt5033;
+
+ for (i = 0; i < ARRAY_SIZE(rt5033_supported_regulators); i++) {
+ struct regulator_dev *regulator;
+
+ config.regmap = rt5033->regmap;
+
+ regulator = devm_regulator_register(&pdev->dev,
+ &rt5033_supported_regulators[i], &config);
+ if (IS_ERR(regulator)) {
+ ret = PTR_ERR(regulator);
+ dev_err(&pdev->dev,
+ "Regulator init failed %d: with error: %d\n",
+ i, ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static const struct platform_device_id rt5033_regulator_id[] = {
+ { "rt5033-regulator", },
+ { }
+};
+MODULE_DEVICE_TABLE(platform, rt5033_regulator_id);
+
+static struct platform_driver rt5033_regulator_driver = {
+ .driver = {
+ .name = "rt5033-regulator",
+ },
+ .probe = rt5033_regulator_probe,
+ .id_table = rt5033_regulator_id,
+};
+module_platform_driver(rt5033_regulator_driver);
+
+MODULE_DESCRIPTION("Richtek RT5033 Regulator driver");
+MODULE_AUTHOR("Beomho Seo <beomho.seo@samsung.com>");
+MODULE_LICENSE("GPL");
--
1.7.9.5
^ permalink raw reply related [flat|nested] 10+ messages in thread* Re: [PATCH v2 2/5] regulator: rt5033: Add RT5033 Regulator device driver
2014-11-10 7:19 ` [PATCH v2 2/5] regulator: rt5033: Add RT5033 Regulator device driver Beomho Seo
@ 2014-11-10 19:04 ` Mark Brown
2014-11-12 1:25 ` Beomho Seo
0 siblings, 1 reply; 10+ messages in thread
From: Mark Brown @ 2014-11-10 19:04 UTC (permalink / raw)
To: Beomho Seo
Cc: linux-kernel, linux-pm, devicetree, cw00.choi, geunsik.lim,
inki.dae, sw0312.kim, Liam Girdwood
[-- Attachment #1: Type: text/plain, Size: 437 bytes --]
On Mon, Nov 10, 2014 at 04:19:44PM +0900, Beomho Seo wrote:
> This patch add device driver of Richtek RT5033 PMIC.
> The driver support multiple regulator like LDO and synchronous Buck.
> The integrated synchronous buck converter is designed to provide 0.6 A
> application with high efficiency. Two LDOs are integrated. One safe LDO is
> for 60mA and the other one LDO is for 150 mA.
I'm missing all the other patches in this series...
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 473 bytes --]
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2 2/5] regulator: rt5033: Add RT5033 Regulator device driver
2014-11-10 19:04 ` Mark Brown
@ 2014-11-12 1:25 ` Beomho Seo
0 siblings, 0 replies; 10+ messages in thread
From: Beomho Seo @ 2014-11-12 1:25 UTC (permalink / raw)
To: Mark Brown
Cc: linux-kernel, linux-pm, devicetree, cw00.choi, geunsik.lim,
inki.dae, sw0312.kim, Liam Girdwood
Sorry, I will include your e-mail address next revision all patch-set.
On 11/11/2014 04:04 AM, Mark Brown wrote:
> On Mon, Nov 10, 2014 at 04:19:44PM +0900, Beomho Seo wrote:
>> This patch add device driver of Richtek RT5033 PMIC.
>> The driver support multiple regulator like LDO and synchronous Buck.
>> The integrated synchronous buck converter is designed to provide 0.6 A
>> application with high efficiency. Two LDOs are integrated. One safe LDO is
>> for 60mA and the other one LDO is for 150 mA.
>
> I'm missing all the other patches in this series...
>
Regards,
Beomho Seo
^ permalink raw reply [flat|nested] 10+ messages in thread
[parent not found: <1415603987-32475-1-git-send-email-beomho.seo-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>]
* [PATCH v2 3/5] power: rt5033_battery: Add RT5033 Fuel gauge device driver
[not found] ` <1415603987-32475-1-git-send-email-beomho.seo-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
@ 2014-11-10 7:19 ` Beomho Seo
0 siblings, 0 replies; 10+ messages in thread
From: Beomho Seo @ 2014-11-10 7:19 UTC (permalink / raw)
To: linux-kernel-u79uwXL29TY76Z2rM5mHXA,
linux-pm-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA
Cc: cw00.choi-Sze3O3UU22JBDgjK7y7TUQ,
geunsik.lim-Sze3O3UU22JBDgjK7y7TUQ,
inki.dae-Sze3O3UU22JBDgjK7y7TUQ,
sw0312.kim-Sze3O3UU22JBDgjK7y7TUQ, Beomho Seo, Sebastian Reichel,
Dmitry Eremin-Solenikov, David Woodhouse
This patch adds device driver of Richtek PMIC.
The driver support battery fuel gange. Fuel gauge calculates and determines the
battery state of charge(SOC) according to battery open circuit voltage(OCV).
Also, this driver provides battery average voltage, voltage and bettery present
property.
Cc: Sebastian Reichel <sre-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Signed-off-by: Beomho Seo <beomho.seo-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Acked-by: Chanwoo Choi <cw00.choi-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
---
Changes in v2:
- Remove volatile_reg callback. Because this driver not in use regmap cache.
- Fix wrong register name.
---
drivers/power/Kconfig | 8 ++
drivers/power/Makefile | 1 +
drivers/power/rt5033_battery.c | 177 ++++++++++++++++++++++++++++++++++++++++
3 files changed, 186 insertions(+)
create mode 100644 drivers/power/rt5033_battery.c
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index 0108c2a..da6981f 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -397,6 +397,14 @@ config BATTERY_GOLDFISH
Say Y to enable support for the battery and AC power in the
Goldfish emulator.
+config BATTERY_RT5033
+ tristate "RT5033 fuel gauge support"
+ depends on MFD_RT5033
+ help
+ This adds support for battery fuel gauge in Richtek RT5033 PMIC.
+ The fuelgauge calculates and determines the battery state of charge
+ according to battery open circuit voltage.
+
source "drivers/power/reset/Kconfig"
endif # POWER_SUPPLY
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index dfa8942..b83a0c7 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -34,6 +34,7 @@ obj-$(CONFIG_BATTERY_DA9052) += da9052-battery.o
obj-$(CONFIG_BATTERY_MAX17040) += max17040_battery.o
obj-$(CONFIG_BATTERY_MAX17042) += max17042_battery.o
obj-$(CONFIG_BATTERY_Z2) += z2_battery.o
+obj-$(CONFIG_BATTERY_RT5033) += rt5033_battery.o
obj-$(CONFIG_BATTERY_S3C_ADC) += s3c_adc_battery.o
obj-$(CONFIG_BATTERY_TWL4030_MADC) += twl4030_madc_battery.o
obj-$(CONFIG_CHARGER_88PM860X) += 88pm860x_charger.o
diff --git a/drivers/power/rt5033_battery.c b/drivers/power/rt5033_battery.c
new file mode 100644
index 0000000..70af2c3
--- /dev/null
+++ b/drivers/power/rt5033_battery.c
@@ -0,0 +1,177 @@
+/*
+ * Fuel gauge driver for Richtek RT5033
+ *
+ * Copyright (C) 2014 Samsung Electronics, Co., Ltd.
+ * Beomho Seo <beomho.seo-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
+ *
+ * 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/module.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/mfd/rt5033-private.h>
+#include <linux/mfd/rt5033.h>
+
+static int rt5033_battery_get_capacity(struct i2c_client *client)
+{
+ struct rt5033_battery *battery = i2c_get_clientdata(client);
+ u32 msb;
+
+ regmap_read(battery->regmap, RT5033_FUEL_REG_SOC_H, &msb);
+
+ return msb;
+}
+
+static int rt5033_battery_get_present(struct i2c_client *client)
+{
+ struct rt5033_battery *battery = i2c_get_clientdata(client);
+ u32 val;
+
+ regmap_read(battery->regmap, RT5033_FUEL_REG_CONFIG_L, &val);
+
+ return (val & RT5033_FUEL_BAT_PRESENT) ? true : false;
+}
+
+static int rt5033_battery_get_watt_prop(struct i2c_client *client,
+ enum power_supply_property psp)
+{
+ struct rt5033_battery *battery = i2c_get_clientdata(client);
+ unsigned int regh, regl;
+ int ret;
+ u32 msb, lsb;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ regh = RT5033_FUEL_REG_VBAT_H;
+ regl = RT5033_FUEL_REG_VBAT_L;
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_AVG:
+ regh = RT5033_FUEL_REG_AVG_VOLT_H;
+ regl = RT5033_FUEL_REG_AVG_VOLT_L;
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_OCV:
+ regh = RT5033_FUEL_REG_OCV_H;
+ regl = RT5033_FUEL_REG_OCV_L;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ regmap_read(battery->regmap, regh, &msb);
+ regmap_read(battery->regmap, regl, &lsb);
+
+ ret = ((msb << 4) + (lsb >> 4)) * 1250 / 1000;
+
+ return ret;
+}
+
+static int rt5033_battery_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct rt5033_battery *battery = container_of(psy,
+ struct rt5033_battery, psy);
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ case POWER_SUPPLY_PROP_VOLTAGE_AVG:
+ case POWER_SUPPLY_PROP_VOLTAGE_OCV:
+ val->intval = rt5033_battery_get_watt_prop(battery->client,
+ psp);
+ break;
+ case POWER_SUPPLY_PROP_PRESENT:
+ val->intval = rt5033_battery_get_present(battery->client);
+ break;
+ case POWER_SUPPLY_PROP_CAPACITY:
+ val->intval = rt5033_battery_get_capacity(battery->client);
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static enum power_supply_property rt5033_battery_props[] = {
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_VOLTAGE_AVG,
+ POWER_SUPPLY_PROP_VOLTAGE_OCV,
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_CAPACITY,
+};
+
+static struct regmap_config rt5033_battery_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = RT5033_FUEL_REG_END,
+};
+
+static int rt5033_battery_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
+ struct rt5033_battery *battery;
+ u32 ret;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE))
+ return -EIO;
+
+ battery = devm_kzalloc(&client->dev, sizeof(*battery), GFP_KERNEL);
+ if (!battery)
+ return -EINVAL;
+
+ battery->client = client;
+ battery->regmap = devm_regmap_init_i2c(client,
+ &rt5033_battery_regmap_config);
+ if (IS_ERR(battery->regmap)) {
+ dev_err(&client->dev, "Failed to initialize regmap\n");
+ return -EINVAL;
+ }
+
+ i2c_set_clientdata(client, battery);
+
+ battery->psy.name = "rt5033-battery";
+ battery->psy.type = POWER_SUPPLY_TYPE_BATTERY;
+ battery->psy.get_property = rt5033_battery_get_property;
+ battery->psy.properties = rt5033_battery_props;
+ battery->psy.num_properties = ARRAY_SIZE(rt5033_battery_props);
+
+ ret = power_supply_register(&client->dev, &battery->psy);
+ if (ret) {
+ dev_err(&client->dev, "Failed to register power supply\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int rt5033_battery_remove(struct i2c_client *client)
+{
+ struct rt5033_battery *battery = i2c_get_clientdata(client);
+
+ power_supply_unregister(&battery->psy);
+
+ return 0;
+}
+
+static const struct i2c_device_id rt5033_battery_id[] = {
+ { "rt5033-battery", },
+ { }
+};
+MODULE_DEVICE_TABLE(platform, rt5033_battery_id);
+
+static struct i2c_driver rt5033_battery_driver = {
+ .driver = {
+ .name = "rt5033-battery",
+ },
+ .probe = rt5033_battery_probe,
+ .remove = rt5033_battery_remove,
+ .id_table = rt5033_battery_id,
+};
+module_i2c_driver(rt5033_battery_driver);
+
+MODULE_DESCRIPTION("Richtek RT5033 fuel gauge driver");
+MODULE_AUTHOR("Beomho Seo <beomho.seo-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>");
+MODULE_LICENSE("GPL");
--
1.7.9.5
--
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^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH v2 4/5] power: rt5033_charger: Add RT5033 charger device driver
2014-11-10 7:19 [PATCH v2 0/5] mfd: rt5033: Add Richtek RT5033 drivers Beomho Seo
` (2 preceding siblings ...)
[not found] ` <1415603987-32475-1-git-send-email-beomho.seo-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
@ 2014-11-10 7:19 ` Beomho Seo
2014-11-10 7:19 ` [PATCH v2 5/5] Documentation: Add documentation for rt5033 multifunction device Beomho Seo
4 siblings, 0 replies; 10+ messages in thread
From: Beomho Seo @ 2014-11-10 7:19 UTC (permalink / raw)
To: linux-kernel, linux-pm, devicetree
Cc: cw00.choi, geunsik.lim, inki.dae, sw0312.kim, Beomho Seo,
Sebastian Reichel, Dmitry Eremin-Solenikov, David Woodhouse
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 <sre@kernel.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
---
Changes in v2:
- Fix wrong error message.
- Fix return value at error case. Because charger->data null, probe function
return zero.
- Use define for set control register.
---
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..f2a7233
--- /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 <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/module.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/mfd/rt5033-private.h>
+#include <linux/mfd/rt5033.h>
+
+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 enable.\n");
+ return -EINVAL;
+ }
+
+ ret = regmap_update_bits(psy->rt5033->regmap, RT5033_REG_CHG_CTRL1,
+ RT5033_RT_HZ_MASK, RT5033_CHARGER_HZ_DISABLE);
+ if (ret) {
+ dev_err(psy->dev, "Failed to set high impedance mode.\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 -ENODEV;
+
+ 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 <beomho.seo@samsung.com>");
+MODULE_LICENSE("GPL");
--
1.7.9.5
^ permalink raw reply related [flat|nested] 10+ messages in thread* [PATCH v2 5/5] Documentation: Add documentation for rt5033 multifunction device
2014-11-10 7:19 [PATCH v2 0/5] mfd: rt5033: Add Richtek RT5033 drivers Beomho Seo
` (3 preceding siblings ...)
2014-11-10 7:19 ` [PATCH v2 4/5] power: rt5033_charger: Add RT5033 charger " Beomho Seo
@ 2014-11-10 7:19 ` Beomho Seo
4 siblings, 0 replies; 10+ messages in thread
From: Beomho Seo @ 2014-11-10 7:19 UTC (permalink / raw)
To: linux-kernel, linux-pm, devicetree
Cc: cw00.choi, geunsik.lim, inki.dae, sw0312.kim, Beomho Seo,
Rob Herring, Pawel Moll, Mark Rutland, Ian campbell, Kumar Gala
This patch device tree binding documentation for rt5033 multifunction device.
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian campbell <ijc+devicetree@hellion.org.uk>
Cc: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
---
Changes in v2:
- Revise binding documentation.
---
Documentation/devicetree/bindings/mfd/rt5033.txt | 108 ++++++++++++++++++++
.../devicetree/bindings/vendor-prefixes.txt | 1 +
2 files changed, 109 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/rt5033.txt
diff --git a/Documentation/devicetree/bindings/mfd/rt5033.txt b/Documentation/devicetree/bindings/mfd/rt5033.txt
new file mode 100644
index 0000000..52a6d33
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/rt5033.txt
@@ -0,0 +1,108 @@
+Richtek RT5033 Power management Integrated Circuit
+
+RT5033 is a Multifunction device which includes battery charger, fuel gauge,
+flash LED current source, LDO and synchronous Buck converter for portable
+applications. It is interfaced to host controller using i2c interface.
+
+Required properties:
+- compatible : Must be "richtek,rt5033"
+- reg : Specifies the i2c slave address of general part.
+- interrupts : This i2c devices has an IRQ line connected to the main SoC.
+- interrupt-parent : The parent interrupt controller.
+
+Optional node:
+Regulators: The regulators of RT5033 have to be instantiated under sub-node
+named "regulators" usinge the following format.
+
+ regulators {
+ regulator-name {
+ regulator-name = LDO/BUCK
+ regulator subnodes called X, Y and Z
+ };
+ };
+ refer Documentation/devicetree/bindings/regulator/regulator.txt
+
+
+Battery charger: There battery charger of RT5033 have to be instantiated under
+sub-node named "charger" using the following format.
+
+Required properties:
+- compatible : Must be "richtek,rt5033-charger".
+- richtek,pre-uamp : Current of pre-charge mode. The pre-charge current levels
+ are 350 mA to 650 mA programmed by I2C per 100 mA.
+- richtek,pre-threshold-uvolt : Voltage of threshold pre-charge mode. Battery
+ voltage is below pre-charge threshold voltage, the charger is in pre-charge
+ mode with pre-charge current. Its levels are 2.3 V to 3.8 V programmed
+ by I2C per 0.1 V.
+- richtek,fast-uamp : Current of fast-charge mode. The fast-charge current
+ levels are 700 mA to 2000 mA programmed by I2C per 100 mA.
+- richtek,const-uvolt : Battery regulation voltage of constant voltage mode.
+ This voltage level 3.65 V to 4.4 V bye I2C per 0.025 V.
+- richtek,eoc-uamp : This property is end of charge current. Its level 150 mA
+ to 200 mA.
+
+ charger {
+ compatible = "richtek,rt5033-charger";
+ richtek,pre-uamp = <350000>;
+ richtek,pre-threshold-uvolt = <3400000>;
+ richtek,fast-uamp = <2000000>;
+ richtek,const-uvolt = <4350000>;
+ richtek,eoc-uamp = <250000>;
+ };
+
+
+Fuelgauge: There fuelgauge of RT5033 to be instantiated node named "fuelgauge"
+using the following format.
+
+Required properties:
+- compatible = Must be "richtek,rt5033-battery".
+
+ i2c_fuel: i2c@1 {
+ compatible = "i2c-gpio";
+ standard i2c-gpio constraints...
+ fuelgauge {
+ compatible = "richtek,rt5033-battery".
+ };
+ };
+
+
+Example:
+
+ rt5033@34 {
+ compatible = "richtek,rt5033";
+ reg = <0x34>;
+ interrupt-parent = <&gpx1>;
+ interrupts = <5 0>;
+
+ regulators {
+ buck_reg: BUCK {
+ regulator-name = "BUCK";
+ regulator-min-microvolt = <1200000>;
+ regulator-max-microvolt = <1200000>;
+ regulator-always-on;
+ };
+ };
+
+ charger {
+ compatible = "richtek,rt5033-charger";
+ richtek,pre-uamp = <350000>;
+ richtek,pre-threshold-uvolt = <3400000>;
+ richtek,fast-uamp = <2000000>;
+ richtek,const-uvolt = <4350000>;
+ richtek,eoc-uamp = <250000>;
+ };
+
+ };
+
+ i2c_fuel: i2c@10 {
+ compatible = "i2c-gpio";
+ gpios = <&gpm3 1 0
+ &gpm3 0 0>;
+
+ fuel: rt5033-battery@35 {
+ compatible = "richtek,rt5033-battery";
+ interrupt-parent = <&gpx2>;
+ interrupts = <3 0>;
+ reg = <0x35>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 723999d..611b543 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -124,6 +124,7 @@ ralink Mediatek/Ralink Technology Corp.
ramtron Ramtron International
realtek Realtek Semiconductor Corp.
renesas Renesas Electronics Corporation
+richtek Richtek Technology Corporation
ricoh Ricoh Co. Ltd.
rockchip Fuzhou Rockchip Electronics Co., Ltd
samsung Samsung Semiconductor
--
1.7.9.5
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