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-rw-r--r--drivers/mfd/Kconfig13
-rw-r--r--drivers/mfd/Makefile1
-rw-r--r--drivers/mfd/max14577.c243
-rw-r--r--include/linux/mfd/max14577-private.h330
-rw-r--r--include/linux/mfd/max14577.h69
5 files changed, 656 insertions, 0 deletions
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index dd671582c9a1..e54a6fd2a5bd 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -321,6 +321,19 @@ config MFD_88PM860X
321 select individual components like voltage regulators, RTC and 321 select individual components like voltage regulators, RTC and
322 battery-charger under the corresponding menus. 322 battery-charger under the corresponding menus.
323 323
324config MFD_MAX14577
325 bool "Maxim Semiconductor MAX14577 MUIC + Charger Support"
326 depends on I2C=y
327 select MFD_CORE
328 select REGMAP_I2C
329 select IRQ_DOMAIN
330 help
331 Say yes here to support for Maxim Semiconductor MAX14577.
332 This is a Micro-USB IC with Charger controls on chip.
333 This driver provides common support for accessing the device;
334 additional drivers must be enabled in order to use the functionality
335 of the device.
336
324config MFD_MAX77686 337config MFD_MAX77686
325 bool "Maxim Semiconductor MAX77686 PMIC Support" 338 bool "Maxim Semiconductor MAX77686 PMIC Support"
326 depends on I2C=y 339 depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 8a28dc90fe78..2e18b05017d9 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -110,6 +110,7 @@ obj-$(CONFIG_MFD_DA9055) += da9055.o
110da9063-objs := da9063-core.o da9063-irq.o da9063-i2c.o 110da9063-objs := da9063-core.o da9063-irq.o da9063-i2c.o
111obj-$(CONFIG_MFD_DA9063) += da9063.o 111obj-$(CONFIG_MFD_DA9063) += da9063.o
112 112
113obj-$(CONFIG_MFD_MAX14577) += max14577.o
113obj-$(CONFIG_MFD_MAX77686) += max77686.o max77686-irq.o 114obj-$(CONFIG_MFD_MAX77686) += max77686.o max77686-irq.o
114obj-$(CONFIG_MFD_MAX77693) += max77693.o max77693-irq.o 115obj-$(CONFIG_MFD_MAX77693) += max77693.o max77693-irq.o
115obj-$(CONFIG_MFD_MAX8907) += max8907.o 116obj-$(CONFIG_MFD_MAX8907) += max8907.o
diff --git a/drivers/mfd/max14577.c b/drivers/mfd/max14577.c
new file mode 100644
index 000000000000..94b766d8cb15
--- /dev/null
+++ b/drivers/mfd/max14577.c
@@ -0,0 +1,243 @@
1/*
2 * max14577.c - mfd core driver for the Maxim 14577
3 *
4 * Copyright (C) 2013 Samsung Electrnoics
5 * Chanwoo Choi <cw00.choi@samsung.com>
6 * Krzysztof Kozlowski <k.kozlowski@samsung.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * This driver is based on max8997.c
19 */
20
21#include <linux/module.h>
22#include <linux/interrupt.h>
23#include <linux/mfd/core.h>
24#include <linux/mfd/max14577.h>
25#include <linux/mfd/max14577-private.h>
26
27static struct mfd_cell max14577_devs[] = {
28 { .name = "max14577-muic", },
29 { .name = "max14577-regulator", },
30 { .name = "max14577-charger", },
31};
32
33static bool max14577_volatile_reg(struct device *dev, unsigned int reg)
34{
35 switch (reg) {
36 case MAX14577_REG_INT1 ... MAX14577_REG_STATUS3:
37 return true;
38 default:
39 break;
40 }
41 return false;
42}
43
44static const struct regmap_config max14577_regmap_config = {
45 .reg_bits = 8,
46 .val_bits = 8,
47 .volatile_reg = max14577_volatile_reg,
48 .max_register = MAX14577_REG_END,
49};
50
51static const struct regmap_irq max14577_irqs[] = {
52 /* INT1 interrupts */
53 { .reg_offset = 0, .mask = INT1_ADC_MASK, },
54 { .reg_offset = 0, .mask = INT1_ADCLOW_MASK, },
55 { .reg_offset = 0, .mask = INT1_ADCERR_MASK, },
56 /* INT2 interrupts */
57 { .reg_offset = 1, .mask = INT2_CHGTYP_MASK, },
58 { .reg_offset = 1, .mask = INT2_CHGDETRUN_MASK, },
59 { .reg_offset = 1, .mask = INT2_DCDTMR_MASK, },
60 { .reg_offset = 1, .mask = INT2_DBCHG_MASK, },
61 { .reg_offset = 1, .mask = INT2_VBVOLT_MASK, },
62 /* INT3 interrupts */
63 { .reg_offset = 2, .mask = INT3_EOC_MASK, },
64 { .reg_offset = 2, .mask = INT3_CGMBC_MASK, },
65 { .reg_offset = 2, .mask = INT3_OVP_MASK, },
66 { .reg_offset = 2, .mask = INT3_MBCCHGERR_MASK, },
67};
68
69static const struct regmap_irq_chip max14577_irq_chip = {
70 .name = "max14577",
71 .status_base = MAX14577_REG_INT1,
72 .mask_base = MAX14577_REG_INTMASK1,
73 .mask_invert = 1,
74 .num_regs = 3,
75 .irqs = max14577_irqs,
76 .num_irqs = ARRAY_SIZE(max14577_irqs),
77};
78
79static int max14577_i2c_probe(struct i2c_client *i2c,
80 const struct i2c_device_id *id)
81{
82 struct max14577 *max14577;
83 struct max14577_platform_data *pdata = dev_get_platdata(&i2c->dev);
84 struct device_node *np = i2c->dev.of_node;
85 u8 reg_data;
86 int ret = 0;
87
88 if (np) {
89 pdata = devm_kzalloc(&i2c->dev, sizeof(*pdata), GFP_KERNEL);
90 if (!pdata)
91 return -ENOMEM;
92 i2c->dev.platform_data = pdata;
93 }
94
95 if (!pdata) {
96 dev_err(&i2c->dev, "No platform data found: %ld\n",
97 PTR_ERR(pdata));
98 return -EINVAL;
99 }
100
101 max14577 = devm_kzalloc(&i2c->dev, sizeof(*max14577), GFP_KERNEL);
102 if (!max14577)
103 return -ENOMEM;
104
105 i2c_set_clientdata(i2c, max14577);
106 max14577->dev = &i2c->dev;
107 max14577->i2c = i2c;
108 max14577->irq = i2c->irq;
109
110 max14577->regmap = devm_regmap_init_i2c(i2c, &max14577_regmap_config);
111 if (IS_ERR(max14577->regmap)) {
112 ret = PTR_ERR(max14577->regmap);
113 dev_err(max14577->dev, "Failed to allocate register map: %d\n",
114 ret);
115 return ret;
116 }
117
118 ret = max14577_read_reg(max14577->regmap, MAX14577_REG_DEVICEID,
119 &reg_data);
120 if (ret) {
121 dev_err(max14577->dev, "Device not found on this channel: %d\n",
122 ret);
123 return ret;
124 }
125 max14577->vendor_id = ((reg_data & DEVID_VENDORID_MASK) >>
126 DEVID_VENDORID_SHIFT);
127 max14577->device_id = ((reg_data & DEVID_DEVICEID_MASK) >>
128 DEVID_DEVICEID_SHIFT);
129 dev_info(max14577->dev, "Device ID: 0x%x, vendor: 0x%x\n",
130 max14577->device_id, max14577->vendor_id);
131
132 ret = regmap_add_irq_chip(max14577->regmap, max14577->irq,
133 IRQF_TRIGGER_FALLING | IRQF_ONESHOT, 0,
134 &max14577_irq_chip,
135 &max14577->irq_data);
136 if (ret != 0) {
137 dev_err(&i2c->dev, "Failed to request IRQ %d: %d\n",
138 max14577->irq, ret);
139 return ret;
140 }
141
142 ret = mfd_add_devices(max14577->dev, -1, max14577_devs,
143 ARRAY_SIZE(max14577_devs), NULL, 0,
144 regmap_irq_get_domain(max14577->irq_data));
145 if (ret < 0)
146 goto err_mfd;
147
148 device_init_wakeup(max14577->dev, 1);
149
150 return 0;
151
152err_mfd:
153 regmap_del_irq_chip(max14577->irq, max14577->irq_data);
154
155 return ret;
156}
157
158static int max14577_i2c_remove(struct i2c_client *i2c)
159{
160 struct max14577 *max14577 = i2c_get_clientdata(i2c);
161
162 mfd_remove_devices(max14577->dev);
163 regmap_del_irq_chip(max14577->irq, max14577->irq_data);
164
165 return 0;
166}
167
168static const struct i2c_device_id max14577_i2c_id[] = {
169 { "max14577", 0 },
170 { }
171};
172MODULE_DEVICE_TABLE(i2c, max14577_i2c_id);
173
174static int max14577_suspend(struct device *dev)
175{
176 struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
177 struct max14577 *max14577 = i2c_get_clientdata(i2c);
178
179 if (device_may_wakeup(dev)) {
180 enable_irq_wake(max14577->irq);
181 /*
182 * MUIC IRQ must be disabled during suspend if this is
183 * a wake up source because it will be handled before
184 * resuming I2C.
185 *
186 * When device is woken up from suspend (e.g. by ADC change),
187 * an interrupt occurs before resuming I2C bus controller.
188 * Interrupt handler tries to read registers but this read
189 * will fail because I2C is still suspended.
190 */
191 disable_irq(max14577->irq);
192 }
193
194 return 0;
195}
196
197static int max14577_resume(struct device *dev)
198{
199 struct i2c_client *i2c = container_of(dev, struct i2c_client, dev);
200 struct max14577 *max14577 = i2c_get_clientdata(i2c);
201
202 if (device_may_wakeup(dev)) {
203 disable_irq_wake(max14577->irq);
204 enable_irq(max14577->irq);
205 }
206
207 return 0;
208}
209
210static struct of_device_id max14577_dt_match[] = {
211 { .compatible = "maxim,max14577", },
212 {},
213};
214
215static SIMPLE_DEV_PM_OPS(max14577_pm, max14577_suspend, max14577_resume);
216
217static struct i2c_driver max14577_i2c_driver = {
218 .driver = {
219 .name = "max14577",
220 .owner = THIS_MODULE,
221 .pm = &max14577_pm,
222 .of_match_table = of_match_ptr(max14577_dt_match),
223 },
224 .probe = max14577_i2c_probe,
225 .remove = max14577_i2c_remove,
226 .id_table = max14577_i2c_id,
227};
228
229static int __init max14577_i2c_init(void)
230{
231 return i2c_add_driver(&max14577_i2c_driver);
232}
233subsys_initcall(max14577_i2c_init);
234
235static void __exit max14577_i2c_exit(void)
236{
237 i2c_del_driver(&max14577_i2c_driver);
238}
239module_exit(max14577_i2c_exit);
240
241MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>, Krzysztof Kozlowski <k.kozlowski@samsung.com>");
242MODULE_DESCRIPTION("MAXIM 14577 multi-function core driver");
243MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/max14577-private.h b/include/linux/mfd/max14577-private.h
new file mode 100644
index 000000000000..a3d0185196d3
--- /dev/null
+++ b/include/linux/mfd/max14577-private.h
@@ -0,0 +1,330 @@
1/*
2 * max14577-private.h - Common API for the Maxim 14577 internal sub chip
3 *
4 * Copyright (C) 2013 Samsung Electrnoics
5 * Chanwoo Choi <cw00.choi@samsung.com>
6 * Krzysztof Kozlowski <k.kozlowski@samsung.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
18
19#ifndef __MAX14577_PRIVATE_H__
20#define __MAX14577_PRIVATE_H__
21
22#include <linux/i2c.h>
23#include <linux/regmap.h>
24
25#define MAX14577_REG_INVALID (0xff)
26
27/* Slave addr = 0x4A: Interrupt */
28enum max14577_reg {
29 MAX14577_REG_DEVICEID = 0x00,
30 MAX14577_REG_INT1 = 0x01,
31 MAX14577_REG_INT2 = 0x02,
32 MAX14577_REG_INT3 = 0x03,
33 MAX14577_REG_STATUS1 = 0x04,
34 MAX14577_REG_STATUS2 = 0x05,
35 MAX14577_REG_STATUS3 = 0x06,
36 MAX14577_REG_INTMASK1 = 0x07,
37 MAX14577_REG_INTMASK2 = 0x08,
38 MAX14577_REG_INTMASK3 = 0x09,
39 MAX14577_REG_CDETCTRL1 = 0x0A,
40 MAX14577_REG_RFU = 0x0B,
41 MAX14577_REG_CONTROL1 = 0x0C,
42 MAX14577_REG_CONTROL2 = 0x0D,
43 MAX14577_REG_CONTROL3 = 0x0E,
44 MAX14577_REG_CHGCTRL1 = 0x0F,
45 MAX14577_REG_CHGCTRL2 = 0x10,
46 MAX14577_REG_CHGCTRL3 = 0x11,
47 MAX14577_REG_CHGCTRL4 = 0x12,
48 MAX14577_REG_CHGCTRL5 = 0x13,
49 MAX14577_REG_CHGCTRL6 = 0x14,
50 MAX14577_REG_CHGCTRL7 = 0x15,
51
52 MAX14577_REG_END,
53};
54
55/* Slave addr = 0x4A: MUIC */
56enum max14577_muic_reg {
57 MAX14577_MUIC_REG_STATUS1 = 0x04,
58 MAX14577_MUIC_REG_STATUS2 = 0x05,
59 MAX14577_MUIC_REG_CONTROL1 = 0x0C,
60 MAX14577_MUIC_REG_CONTROL3 = 0x0E,
61
62 MAX14577_MUIC_REG_END,
63};
64
65enum max14577_muic_charger_type {
66 MAX14577_CHARGER_TYPE_NONE = 0,
67 MAX14577_CHARGER_TYPE_USB,
68 MAX14577_CHARGER_TYPE_DOWNSTREAM_PORT,
69 MAX14577_CHARGER_TYPE_DEDICATED_CHG,
70 MAX14577_CHARGER_TYPE_SPECIAL_500MA,
71 MAX14577_CHARGER_TYPE_SPECIAL_1A,
72 MAX14577_CHARGER_TYPE_RESERVED,
73 MAX14577_CHARGER_TYPE_DEAD_BATTERY = 7,
74};
75
76/* MAX14577 interrupts */
77#define INT1_ADC_MASK (0x1 << 0)
78#define INT1_ADCLOW_MASK (0x1 << 1)
79#define INT1_ADCERR_MASK (0x1 << 2)
80
81#define INT2_CHGTYP_MASK (0x1 << 0)
82#define INT2_CHGDETRUN_MASK (0x1 << 1)
83#define INT2_DCDTMR_MASK (0x1 << 2)
84#define INT2_DBCHG_MASK (0x1 << 3)
85#define INT2_VBVOLT_MASK (0x1 << 4)
86
87#define INT3_EOC_MASK (0x1 << 0)
88#define INT3_CGMBC_MASK (0x1 << 1)
89#define INT3_OVP_MASK (0x1 << 2)
90#define INT3_MBCCHGERR_MASK (0x1 << 3)
91
92/* MAX14577 DEVICE ID register */
93#define DEVID_VENDORID_SHIFT 0
94#define DEVID_DEVICEID_SHIFT 3
95#define DEVID_VENDORID_MASK (0x07 << DEVID_VENDORID_SHIFT)
96#define DEVID_DEVICEID_MASK (0x1f << DEVID_DEVICEID_SHIFT)
97
98/* MAX14577 STATUS1 register */
99#define STATUS1_ADC_SHIFT 0
100#define STATUS1_ADCLOW_SHIFT 5
101#define STATUS1_ADCERR_SHIFT 6
102#define STATUS1_ADC_MASK (0x1f << STATUS1_ADC_SHIFT)
103#define STATUS1_ADCLOW_MASK (0x1 << STATUS1_ADCLOW_SHIFT)
104#define STATUS1_ADCERR_MASK (0x1 << STATUS1_ADCERR_SHIFT)
105
106/* MAX14577 STATUS2 register */
107#define STATUS2_CHGTYP_SHIFT 0
108#define STATUS2_CHGDETRUN_SHIFT 3
109#define STATUS2_DCDTMR_SHIFT 4
110#define STATUS2_DBCHG_SHIFT 5
111#define STATUS2_VBVOLT_SHIFT 6
112#define STATUS2_CHGTYP_MASK (0x7 << STATUS2_CHGTYP_SHIFT)
113#define STATUS2_CHGDETRUN_MASK (0x1 << STATUS2_CHGDETRUN_SHIFT)
114#define STATUS2_DCDTMR_MASK (0x1 << STATUS2_DCDTMR_SHIFT)
115#define STATUS2_DBCHG_MASK (0x1 << STATUS2_DBCHG_SHIFT)
116#define STATUS2_VBVOLT_MASK (0x1 << STATUS2_VBVOLT_SHIFT)
117
118/* MAX14577 CONTROL1 register */
119#define COMN1SW_SHIFT 0
120#define COMP2SW_SHIFT 3
121#define MICEN_SHIFT 6
122#define IDBEN_SHIFT 7
123#define COMN1SW_MASK (0x7 << COMN1SW_SHIFT)
124#define COMP2SW_MASK (0x7 << COMP2SW_SHIFT)
125#define MICEN_MASK (0x1 << MICEN_SHIFT)
126#define IDBEN_MASK (0x1 << IDBEN_SHIFT)
127#define CLEAR_IDBEN_MICEN_MASK (COMN1SW_MASK | COMP2SW_MASK)
128#define CTRL1_SW_USB ((1 << COMP2SW_SHIFT) \
129 | (1 << COMN1SW_SHIFT))
130#define CTRL1_SW_AUDIO ((2 << COMP2SW_SHIFT) \
131 | (2 << COMN1SW_SHIFT))
132#define CTRL1_SW_UART ((3 << COMP2SW_SHIFT) \
133 | (3 << COMN1SW_SHIFT))
134#define CTRL1_SW_OPEN ((0 << COMP2SW_SHIFT) \
135 | (0 << COMN1SW_SHIFT))
136
137/* MAX14577 CONTROL2 register */
138#define CTRL2_LOWPWR_SHIFT (0)
139#define CTRL2_ADCEN_SHIFT (1)
140#define CTRL2_CPEN_SHIFT (2)
141#define CTRL2_SFOUTASRT_SHIFT (3)
142#define CTRL2_SFOUTORD_SHIFT (4)
143#define CTRL2_ACCDET_SHIFT (5)
144#define CTRL2_USBCPINT_SHIFT (6)
145#define CTRL2_RCPS_SHIFT (7)
146#define CTRL2_LOWPWR_MASK (0x1 << CTRL2_LOWPWR_SHIFT)
147#define CTRL2_ADCEN_MASK (0x1 << CTRL2_ADCEN_SHIFT)
148#define CTRL2_CPEN_MASK (0x1 << CTRL2_CPEN_SHIFT)
149#define CTRL2_SFOUTASRT_MASK (0x1 << CTRL2_SFOUTASRT_SHIFT)
150#define CTRL2_SFOUTORD_MASK (0x1 << CTRL2_SFOUTORD_SHIFT)
151#define CTRL2_ACCDET_MASK (0x1 << CTRL2_ACCDET_SHIFT)
152#define CTRL2_USBCPINT_MASK (0x1 << CTRL2_USBCPINT_SHIFT)
153#define CTRL2_RCPS_MASK (0x1 << CTR2_RCPS_SHIFT)
154
155#define CTRL2_CPEN1_LOWPWR0 ((1 << CTRL2_CPEN_SHIFT) | \
156 (0 << CTRL2_LOWPWR_SHIFT))
157#define CTRL2_CPEN0_LOWPWR1 ((0 << CTRL2_CPEN_SHIFT) | \
158 (1 << CTRL2_LOWPWR_SHIFT))
159
160/* MAX14577 CONTROL3 register */
161#define CTRL3_JIGSET_SHIFT 0
162#define CTRL3_BOOTSET_SHIFT 2
163#define CTRL3_ADCDBSET_SHIFT 4
164#define CTRL3_JIGSET_MASK (0x3 << CTRL3_JIGSET_SHIFT)
165#define CTRL3_BOOTSET_MASK (0x3 << CTRL3_BOOTSET_SHIFT)
166#define CTRL3_ADCDBSET_MASK (0x3 << CTRL3_ADCDBSET_SHIFT)
167
168/* Slave addr = 0x4A: Charger */
169enum max14577_charger_reg {
170 MAX14577_CHG_REG_STATUS3 = 0x06,
171 MAX14577_CHG_REG_CHG_CTRL1 = 0x0F,
172 MAX14577_CHG_REG_CHG_CTRL2 = 0x10,
173 MAX14577_CHG_REG_CHG_CTRL3 = 0x11,
174 MAX14577_CHG_REG_CHG_CTRL4 = 0x12,
175 MAX14577_CHG_REG_CHG_CTRL5 = 0x13,
176 MAX14577_CHG_REG_CHG_CTRL6 = 0x14,
177 MAX14577_CHG_REG_CHG_CTRL7 = 0x15,
178
179 MAX14577_CHG_REG_END,
180};
181
182/* MAX14577 STATUS3 register */
183#define STATUS3_EOC_SHIFT 0
184#define STATUS3_CGMBC_SHIFT 1
185#define STATUS3_OVP_SHIFT 2
186#define STATUS3_MBCCHGERR_SHIFT 3
187#define STATUS3_EOC_MASK (0x1 << STATUS3_EOC_SHIFT)
188#define STATUS3_CGMBC_MASK (0x1 << STATUS3_CGMBC_SHIFT)
189#define STATUS3_OVP_MASK (0x1 << STATUS3_OVP_SHIFT)
190#define STATUS3_MBCCHGERR_MASK (0x1 << STATUS3_MBCCHGERR_SHIFT)
191
192/* MAX14577 CDETCTRL1 register */
193#define CDETCTRL1_CHGDETEN_SHIFT 0
194#define CDETCTRL1_CHGTYPMAN_SHIFT 1
195#define CDETCTRL1_DCDEN_SHIFT 2
196#define CDETCTRL1_DCD2SCT_SHIFT 3
197#define CDETCTRL1_DCHKTM_SHIFT 4
198#define CDETCTRL1_DBEXIT_SHIFT 5
199#define CDETCTRL1_DBIDLE_SHIFT 6
200#define CDETCTRL1_CDPDET_SHIFT 7
201#define CDETCTRL1_CHGDETEN_MASK (0x1 << CDETCTRL1_CHGDETEN_SHIFT)
202#define CDETCTRL1_CHGTYPMAN_MASK (0x1 << CDETCTRL1_CHGTYPMAN_SHIFT)
203#define CDETCTRL1_DCDEN_MASK (0x1 << CDETCTRL1_DCDEN_SHIFT)
204#define CDETCTRL1_DCD2SCT_MASK (0x1 << CDETCTRL1_DCD2SCT_SHIFT)
205#define CDETCTRL1_DCHKTM_MASK (0x1 << CDETCTRL1_DCHKTM_SHIFT)
206#define CDETCTRL1_DBEXIT_MASK (0x1 << CDETCTRL1_DBEXIT_SHIFT)
207#define CDETCTRL1_DBIDLE_MASK (0x1 << CDETCTRL1_DBIDLE_SHIFT)
208#define CDETCTRL1_CDPDET_MASK (0x1 << CDETCTRL1_CDPDET_SHIFT)
209
210/* MAX14577 CHGCTRL1 register */
211#define CHGCTRL1_TCHW_SHIFT 4
212#define CHGCTRL1_TCHW_MASK (0x7 << CHGCTRL1_TCHW_SHIFT)
213
214/* MAX14577 CHGCTRL2 register */
215#define CHGCTRL2_MBCHOSTEN_SHIFT 6
216#define CHGCTRL2_MBCHOSTEN_MASK (0x1 << CHGCTRL2_MBCHOSTEN_SHIFT)
217#define CHGCTRL2_VCHGR_RC_SHIFT 7
218#define CHGCTRL2_VCHGR_RC_MASK (0x1 << CHGCTRL2_VCHGR_RC_SHIFT)
219
220/* MAX14577 CHGCTRL3 register */
221#define CHGCTRL3_MBCCVWRC_SHIFT 0
222#define CHGCTRL3_MBCCVWRC_MASK (0xf << CHGCTRL3_MBCCVWRC_SHIFT)
223
224/* MAX14577 CHGCTRL4 register */
225#define CHGCTRL4_MBCICHWRCH_SHIFT 0
226#define CHGCTRL4_MBCICHWRCH_MASK (0xf << CHGCTRL4_MBCICHWRCH_SHIFT)
227#define CHGCTRL4_MBCICHWRCL_SHIFT 4
228#define CHGCTRL4_MBCICHWRCL_MASK (0x1 << CHGCTRL4_MBCICHWRCL_SHIFT)
229
230/* MAX14577 CHGCTRL5 register */
231#define CHGCTRL5_EOCS_SHIFT 0
232#define CHGCTRL5_EOCS_MASK (0xf << CHGCTRL5_EOCS_SHIFT)
233
234/* MAX14577 CHGCTRL6 register */
235#define CHGCTRL6_AUTOSTOP_SHIFT 5
236#define CHGCTRL6_AUTOSTOP_MASK (0x1 << CHGCTRL6_AUTOSTOP_SHIFT)
237
238/* MAX14577 CHGCTRL7 register */
239#define CHGCTRL7_OTPCGHCVS_SHIFT 0
240#define CHGCTRL7_OTPCGHCVS_MASK (0x3 << CHGCTRL7_OTPCGHCVS_SHIFT)
241
242/* MAX14577 regulator current limits (as in CHGCTRL4 register), uA */
243#define MAX14577_REGULATOR_CURRENT_LIMIT_MIN 90000
244#define MAX14577_REGULATOR_CURRENT_LIMIT_HIGH_START 200000
245#define MAX14577_REGULATOR_CURRENT_LIMIT_HIGH_STEP 50000
246#define MAX14577_REGULATOR_CURRENT_LIMIT_MAX 950000
247
248/* MAX14577 regulator SFOUT LDO voltage, fixed, uV */
249#define MAX14577_REGULATOR_SAFEOUT_VOLTAGE 4900000
250
251enum max14577_irq_source {
252 MAX14577_IRQ_INT1 = 0,
253 MAX14577_IRQ_INT2,
254 MAX14577_IRQ_INT3,
255
256 MAX14577_IRQ_REGS_NUM,
257};
258
259enum max14577_irq {
260 /* INT1 */
261 MAX14577_IRQ_INT1_ADC,
262 MAX14577_IRQ_INT1_ADCLOW,
263 MAX14577_IRQ_INT1_ADCERR,
264
265 /* INT2 */
266 MAX14577_IRQ_INT2_CHGTYP,
267 MAX14577_IRQ_INT2_CHGDETRUN,
268 MAX14577_IRQ_INT2_DCDTMR,
269 MAX14577_IRQ_INT2_DBCHG,
270 MAX14577_IRQ_INT2_VBVOLT,
271
272 /* INT3 */
273 MAX14577_IRQ_INT3_EOC,
274 MAX14577_IRQ_INT3_CGMBC,
275 MAX14577_IRQ_INT3_OVP,
276 MAX14577_IRQ_INT3_MBCCHGERR,
277
278 MAX14577_IRQ_NUM,
279};
280
281struct max14577 {
282 struct device *dev;
283 struct i2c_client *i2c; /* Slave addr = 0x4A */
284
285 struct regmap *regmap;
286
287 struct regmap_irq_chip_data *irq_data;
288 int irq;
289
290 /* Device ID */
291 u8 vendor_id; /* Vendor Identification */
292 u8 device_id; /* Chip Version */
293};
294
295/* MAX14577 shared regmap API function */
296static inline int max14577_read_reg(struct regmap *map, u8 reg, u8 *dest)
297{
298 unsigned int val;
299 int ret;
300
301 ret = regmap_read(map, reg, &val);
302 *dest = val;
303
304 return ret;
305}
306
307static inline int max14577_bulk_read(struct regmap *map, u8 reg, u8 *buf,
308 int count)
309{
310 return regmap_bulk_read(map, reg, buf, count);
311}
312
313static inline int max14577_write_reg(struct regmap *map, u8 reg, u8 value)
314{
315 return regmap_write(map, reg, value);
316}
317
318static inline int max14577_bulk_write(struct regmap *map, u8 reg, u8 *buf,
319 int count)
320{
321 return regmap_bulk_write(map, reg, buf, count);
322}
323
324static inline int max14577_update_reg(struct regmap *map, u8 reg, u8 mask,
325 u8 val)
326{
327 return regmap_update_bits(map, reg, mask, val);
328}
329
330#endif /* __MAX14577_PRIVATE_H__ */
diff --git a/include/linux/mfd/max14577.h b/include/linux/mfd/max14577.h
new file mode 100644
index 000000000000..247b021dfaaf
--- /dev/null
+++ b/include/linux/mfd/max14577.h
@@ -0,0 +1,69 @@
1/*
2 * max14577.h - Driver for the Maxim 14577
3 *
4 * Copyright (C) 2013 Samsung Electrnoics
5 * Chanwoo Choi <cw00.choi@samsung.com>
6 * Krzysztof Kozlowski <k.kozlowski@samsung.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * This driver is based on max8997.h
19 *
20 * MAX14577 has MUIC, Charger devices.
21 * The devices share the same I2C bus and interrupt line
22 * included in this mfd driver.
23 */
24
25#ifndef __MAX14577_H__
26#define __MAX14577_H__
27
28#include <linux/mfd/max14577-private.h>
29#include <linux/regulator/consumer.h>
30
31/*
32 * MAX14577 Regulator
33 */
34
35/* MAX14577 regulator IDs */
36enum max14577_regulators {
37 MAX14577_SAFEOUT = 0,
38 MAX14577_CHARGER,
39
40 MAX14577_REG_MAX,
41};
42
43struct max14577_regulator_platform_data {
44 int id;
45 struct regulator_init_data *initdata;
46 struct device_node *of_node;
47};
48
49/*
50 * MAX14577 MFD platform data
51 */
52struct max14577_platform_data {
53 /* IRQ */
54 int irq_base;
55
56 /* current control GPIOs */
57 int gpio_pogo_vbatt_en;
58 int gpio_pogo_vbus_en;
59
60 /* current control GPIO control function */
61 int (*set_gpio_pogo_vbatt_en) (int gpio_val);
62 int (*set_gpio_pogo_vbus_en) (int gpio_val);
63
64 int (*set_gpio_pogo_cb) (int new_dev);
65
66 struct max14577_regulator_platform_data *regulators;
67};
68
69#endif /* __MAX14577_H__ */
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-18 13:12:23 -0400