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authorBeomho Seo <beomho.seo@samsung.com>2014-12-09 21:03:51 +0900
committerLee Jones <lee.jones@linaro.org>2015-01-22 15:55:47 +0000
commit0b271258544b3f89f9a14fa3b53e20ec9ce75392 (patch)
tree67dd466700c717574443f6c46e6e382c94581713 /include/linux/mfd
parent52a98dcd3727dee2c75a0353b42b210570ee7911 (diff)
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>
Diffstat (limited to 'include/linux/mfd')
-rw-r--r--include/linux/mfd/rt5033-private.h260
-rw-r--r--include/linux/mfd/rt5033.h62
2 files changed, 322 insertions, 0 deletions
diff --git a/include/linux/mfd/rt5033-private.h b/include/linux/mfd/rt5033-private.h
new file mode 100644
index 000000000000..1b63fc2f42d1
--- /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 000000000000..010cff49a98e
--- /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__ */